Implement versions 0.0.4-0.0.7 features

v0.0.4:
- Add WooCommerce settings tab for default license settings
- Per-product settings override global defaults

v0.0.5:
- Add bulk license operations (activate, deactivate, revoke, extend, delete)
- Add license renewal/extension and lifetime functionality
- Add quick action buttons per license row

v0.0.6:
- Add license dashboard with statistics and analytics
- Add license transfer functionality (admin)
- Add CSV export for licenses
- Add OpenAPI 3.1 specification
- Remove /deactivate API endpoint

v0.0.7:
- Move license dashboard to WooCommerce Reports section
- Add license search and filtering in admin
- Add customer-facing license transfer with AJAX modal
- Add email notifications for license expiration warnings
- Add bulk import licenses from CSV
- Update README with comprehensive documentation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,110 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.0.7] - 2026-01-21
+
+### Added
+
+- License Dashboard moved to WooCommerce Reports section (Reports > Licenses)
+- License search and filtering in admin (by license key, domain, status, product)
+- Customer-facing license transfer request with AJAX-based modal
+- Email notifications for license expiration warnings (7 days and 1 day before)
+- Bulk import licenses from CSV functionality
+- Import page with detailed format instructions
+- Scheduled cron job for daily expiration checks
+
+### Changed
+
+- Dashboard now accessible via WooCommerce > Reports > Licenses tab
+- License list page includes search box and filter dropdowns
+- Pagination preserves filter state
+- Import CSV button added to licenses page header
+
+### Technical Details
+
+- AccountController extended with customer transfer AJAX handler and domain normalization
+- LicenseEmailController extended with expiration warning scheduling and email templates
+- LicenseManager extended with `getLicensesExpiringSoon()`, `markExpirationNotified()`, `wasExpirationNotified()`, `importLicense()` methods
+- AdminController extended with CSV import handling and import page rendering
+- Installer clears cron events on plugin deactivation
+- Frontend JavaScript extended for transfer modal handling
+- Frontend CSS extended with modal and transfer button styles
+
+## [0.0.6] - 2026-01-21
+
+### Added
+
+- License usage statistics/analytics dashboard (WooCommerce > License Dashboard)
+- License transfer functionality to change domain from admin
+- Export licenses to CSV functionality
+- OpenAPI 3.1 specification for REST API documentation (`openapi.json`)
+- Monthly license creation chart on dashboard
+- Top products and top domains statistics
+- Expiring soon alerts on dashboard
+
+### Removed
+
+- API endpoint `/deactivate` removed (license deactivation is now admin-only)
+
+### Changed
+
+- Licenses admin page header now includes Export CSV button
+- Actions column widened to accommodate Transfer link
+- Dashboard link added to licenses page
+
+### Technical Details
+
+- New admin page: License Dashboard with statistics overview
+- LicenseManager extended with `transferLicense()`, `getStatistics()`, `exportLicensesForCsv()` methods
+- AdminController extended with dashboard rendering, CSV export, and transfer handling
+- Transfer modal with form for domain change
+- REST API now only has three endpoints: `/validate`, `/status`, `/activate`
+- OpenAPI 3.1 specification documents all API endpoints with examples
+
+## [0.0.5] - 2026-01-21
+
+### Added
+
+- Bulk license operations in admin (activate, deactivate, revoke, extend, delete)
+- License renewal/extension functionality (extend by 30/90/365 days)
+- Set license to lifetime (remove expiration)
+- Quick action buttons per license row (+30d, ∞, Revoke, Delete)
+- Checkbox selection for bulk operations with select-all functionality
+- Improved admin notices for bulk operation results
+
+### Changed
+
+- Licenses admin page redesigned with WordPress list table styling
+- License actions use row-actions pattern for cleaner UI
+- Bulk action dropdowns at top and bottom of table (synchronized)
+
+### Technical Details
+
+- LicenseManager extended with `extendLicense()`, `setLicenseLifetime()`, `bulkUpdateStatus()`, `bulkDelete()`, `bulkExtend()` methods
+- AdminController extended with bulk action handling and extend/lifetime actions
+- Twig template functions for generating action URLs with nonces
+- JavaScript for checkbox sync and bulk action handling
+
+## [0.0.4] - 2026-01-21
+
+### Added
+
+- WooCommerce settings tab "Licensed Products" for default license settings
+- Default settings for Max Activations, License Validity, and Bind to Major Version
+- Per-product settings now override global defaults (empty = use default)
+- Settings link in product edit page pointing to WooCommerce settings
+
+### Changed
+
+- Product license settings now show placeholder with default values
+- LicensedProduct class now falls back to global defaults when product settings are empty
+
+### Technical Details
+
+- New class: SettingsController for WooCommerce settings integration
+- LicensedProduct model extended with `has_custom_*` methods for checking overrides
+- Settings stored using WooCommerce options API
+
 ## [0.0.3] - 2026-01-21
 
 ### Added
@@ -67,7 +171,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - `POST /wp-json/wc-licensed-product/v1/validate` - Validate license for domain
   - `POST /wp-json/wc-licensed-product/v1/status` - Check license status
   - `POST /wp-json/wc-licensed-product/v1/activate` - Activate license on domain
-  - `POST /wp-json/wc-licensed-product/v1/deactivate` - Deactivate license
 - Checkout domain field for licensed products
 - Customer account page "Licenses" to view purchased licenses
 - Admin interface for license management (WooCommerce > Licenses)
@@ -92,7 +195,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - WordPress REST API integration
 - Custom WooCommerce product type extending WC_Product
 
-[Unreleased]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.3...HEAD
+[Unreleased]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.7...HEAD
+[0.0.7]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.6...v0.0.7
+[0.0.6]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.5...v0.0.6
+[0.0.5]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.4...v0.0.5
+[0.0.4]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.3...v0.0.4
 [0.0.3]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.2...v0.0.3
 [0.0.2]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/compare/v0.0.1...v0.0.2
 [0.0.1]: https://src.bundespruefstelle.ch/magdev/wc-licensed-product/releases/tag/v0.0.1

CLAUDE.md

@@ -36,11 +36,9 @@ This project is proudly **"vibe-coded"** using Claude.AI - the entire codebase w
 
 _No known bugs at this time._
 
-### Version 0.0.4 (Next)
+### Version 0.0.8 (Next)
 
-- Consider adding license usage statistics/analytics
+_No planned features yet. Add items as needed._
-- Consider adding bulk license operations in admin
-- Consider adding license renewal/extension functionality
 
 ## Technical Stack
 
@@ -226,11 +224,12 @@ Created on plugin activation via `Installer::createTables()`:
 Base: `/wp-json/wc-licensed-product/v1/`
 
 | Endpoint    | Method | Description                     |
-| -------------- | ------ | -------------------------------- |
+| ----------- | ------ | ------------------------------- |
 | `/validate` | POST   | Validate license key for domain |
 | `/status`   | POST   | Get license status              |
 | `/activate` | POST   | Activate license on domain      |
-| `/deactivate`  | POST   | Deactivate license               |
+
+Full API documentation available in `openapi.json` (OpenAPI 3.1 specification).
 
 ### Key Classes
 
@@ -316,3 +315,117 @@ Base: `/wp-json/wc-licensed-product/v1/`
 **Bug fixes:**
 
 - Fixed product versions meta box visibility for non-licensed product types (targets `#wc_licensed_product_versions` container)
+
+### 2026-01-21 - Version 0.0.4 Features
+
+**Implemented:**
+
+- WooCommerce settings tab "Licensed Products" for default license settings
+- Default settings for Max Activations, License Validity, and Bind to Major Version
+- Per-product settings override global defaults (empty = use default)
+- Settings link in product edit page pointing to WooCommerce settings
+
+**New classes:**
+
+- `SettingsController` - WooCommerce settings tab integration
+
+**Technical notes:**
+
+- Settings stored using WooCommerce options API
+- LicensedProduct model falls back to global defaults when product settings are empty
+- Added `has_custom_*` methods to check if product has overridden defaults
+- Product edit panel shows placeholders with default values
+
+### 2026-01-21 - Version 0.0.5 Features
+
+**Implemented:**
+
+- Bulk license operations in admin (activate, deactivate, revoke, extend, delete)
+- License renewal/extension functionality (extend by 30/90/365 days)
+- Set license to lifetime (remove expiration)
+- Quick action buttons per license row (+30d, ∞, Revoke, Delete)
+- Checkbox selection with select-all for bulk operations
+- Improved admin notices for bulk operation results
+
+**New methods in LicenseManager:**
+
+- `extendLicense()` - Extend license by specified days
+- `setLicenseLifetime()` - Remove expiration (set to lifetime)
+- `bulkUpdateStatus()` - Bulk update license status
+- `bulkDelete()` - Bulk delete licenses
+- `bulkExtend()` - Bulk extend licenses
+
+**Technical notes:**
+
+- Admin page redesigned with WordPress list table styling
+- Twig template functions for generating action URLs with nonces
+- JavaScript for checkbox synchronization and bulk action handling
+- Row-actions pattern for cleaner per-license action UI
+
+### 2026-01-21 - Version 0.0.6 Features
+
+**Implemented:**
+
+- License usage statistics/analytics dashboard (WooCommerce > License Dashboard)
+- License transfer functionality (change domain from admin)
+- Export licenses to CSV with all related data
+- OpenAPI 3.1 specification for REST API (`openapi.json`)
+- Removed `/deactivate` API endpoint (admin-only operation now)
+
+**New methods in LicenseManager:**
+
+- `transferLicense()` - Transfer license to new domain
+- `getStatistics()` - Get comprehensive license statistics
+- `exportLicensesForCsv()` - Export all licenses for CSV download
+
+**New files:**
+
+- `templates/admin/dashboard.html.twig` - Dashboard template
+- `openapi.json` - OpenAPI 3.1 specification
+
+**Technical notes:**
+
+- Dashboard shows status cards, monthly chart, top products/domains
+- Transfer uses modal dialog with form submission
+- CSV export includes BOM for UTF-8 Excel compatibility
+- OpenAPI spec documents all endpoints with examples and error responses
+- Statistics query uses SQL aggregation for performance
+
+### 2026-01-21 - Version 0.0.7 Features
+
+**Implemented:**
+
+- License Dashboard moved to WooCommerce Reports section (Reports > Licenses tab)
+- License search and filtering in admin (by key, domain, status, product)
+- Customer-facing license transfer request with AJAX modal
+- Email notifications for license expiration warnings (7 days and 1 day before)
+- Bulk import licenses from CSV with validation and options
+
+**New methods in LicenseManager:**
+
+- `getLicensesExpiringSoon()` - Get licenses expiring within specified days
+- `markExpirationNotified()` - Track expiration notification state
+- `wasExpirationNotified()` - Check if notification already sent
+- `importLicense()` - Create license from imported data
+
+**Updated controllers:**
+
+- `AdminController` - Added Reports integration, search/filter handling, CSV import
+- `AccountController` - Added customer transfer AJAX handler with domain validation
+- `LicenseEmailController` - Added cron scheduling and expiration warning emails
+- `Installer` - Clears cron events on deactivation
+
+**New UI features:**
+
+- Search box and filter dropdowns on licenses page
+- Transfer button and modal on customer licenses page
+- Import CSV page with format documentation
+- Pagination preserves filter state
+
+**Technical notes:**
+
+- WooCommerce Reports integration uses `woocommerce_admin_reports` filter
+- Customer transfer uses AJAX with nonce verification
+- Expiration warnings use WordPress cron with daily schedule
+- CSV import supports both exported format and simplified format
+- User meta tracks expiration notifications to prevent duplicates

README.md

@@ -8,14 +8,34 @@ WC Licensed Product adds a new product type "Licensed Product" to WooCommerce, e
 
 ## Features
 
+### Core Features
+
 - **Licensed Product Type**: New WooCommerce product type for software sales
-- **Automatic License Generation**: License keys generated on order completion
+- **Automatic License Generation**: License keys generated on order completion (format: XXXX-XXXX-XXXX-XXXX)
 - **Domain Binding**: Licenses are bound to customer-specified domains
 - **REST API**: Public endpoints for license validation and management
-- **Customer Account**: Customers can view their licenses in My Account
-- **Admin Management**: Full CRUD interface for license management
 - **Version Binding**: Optional binding to major software versions
 - **Expiration Support**: Set license validity periods or lifetime licenses
+- **Rate Limiting**: API endpoints protected with rate limiting (30 requests/minute)
+
+### Customer Features
+
+- **My Account Licenses**: Customers can view their licenses in My Account
+- **License Transfers**: Customers can transfer licenses to new domains
+- **Secure Downloads**: Download purchased software versions with license verification
+- **Copy to Clipboard**: Easy license key copying
+
+### Admin Features
+
+- **License Management**: Full CRUD interface for license management
+- **License Dashboard**: Statistics and analytics (WooCommerce > Reports > Licenses)
+- **Search & Filtering**: Search by license key, domain, status, or product
+- **Bulk Operations**: Activate, deactivate, revoke, extend, or delete multiple licenses
+- **License Transfer**: Transfer licenses to new domains
+- **CSV Export/Import**: Export and import licenses via CSV
+- **Expiration Warnings**: Automatic email notifications before license expiration
+- **Version Management**: Manage multiple versions per product with file attachments
+- **Global Settings**: Default license settings via WooCommerce settings tab
 
 ## Requirements
 
@@ -42,6 +62,19 @@ WC Licensed Product adds a new product type "Licensed Product" to WooCommerce, e
    - **Bind to Major Version**: Lock license to current major version
    - **Current Version**: Your software's current version
 
+### Managing Product Versions
+
+1. Edit a Licensed Product
+2. Use the "Product Versions" meta box to add versions
+3. Upload version files via WordPress Media Library
+4. Version numbers are auto-detected from filenames (e.g., `plugin-v1.2.3.zip`)
+
+### Global Default Settings
+
+1. Go to WooCommerce > Settings > Licensed Products
+2. Set default values for Max Activations, License Validity, and Version Binding
+3. Per-product settings override these defaults
+
 ### Customer Checkout
 
 When a customer purchases a licensed product, they must enter the domain where they will use the license during checkout.
@@ -50,11 +83,30 @@ When a customer purchases a licensed product, they must enter the domain where t
 
 - **Customers**: My Account > Licenses
 - **Administrators**: WooCommerce > Licenses
+- **Dashboard**: WooCommerce > Reports > Licenses (for statistics)
+
+### Exporting & Importing Licenses
+
+**Export:**
+
+1. Go to WooCommerce > Licenses
+2. Click "Export CSV" to download all licenses
+
+**Import:**
+
+1. Go to WooCommerce > Licenses
+2. Click "Import CSV"
+3. Upload a CSV file (supports exported format or simplified format)
+4. Choose options: skip header row, update existing licenses
 
 ## REST API
 
+Full API documentation available in `openapi.json` (OpenAPI 3.1 specification).
+
 ### Validate License
 
+Validate a license key for a specific domain.
+
 ```http
 POST /wp-json/wc-licensed-product/v1/validate
 Content-Type: application/json
@@ -65,8 +117,33 @@ Content-Type: application/json
 }
 ```
 
+**Success Response (200):**
+
+```json
+{
+  "valid": true,
+  "license": {
+    "product_id": 123,
+    "expires_at": "2027-01-21",
+    "version_id": 5
+  }
+}
+```
+
+**Error Response (403):**
+
+```json
+{
+  "valid": false,
+  "error": "domain_mismatch",
+  "message": "This license is not valid for this domain."
+}
+```
+
 ### Check Status
 
+Get detailed license status information.
+
 ```http
 POST /wp-json/wc-licensed-product/v1/status
 Content-Type: application/json
@@ -76,8 +153,23 @@ Content-Type: application/json
 }
 ```
 
+**Response (200):**
+
+```json
+{
+  "valid": true,
+  "status": "active",
+  "domain": "example.com",
+  "expires_at": "2027-01-21",
+  "activations_count": 1,
+  "max_activations": 3
+}
+```
+
 ### Activate License
 
+Activate a license on a domain.
+
 ```http
 POST /wp-json/wc-licensed-product/v1/activate
 Content-Type: application/json
@@ -88,18 +180,27 @@ Content-Type: application/json
 }
 ```
 
-### Deactivate License
+**Response (200):**
-
-```http
-POST /wp-json/wc-licensed-product/v1/deactivate
-Content-Type: application/json
 
+```json
 {
-  "license_key": "XXXX-XXXX-XXXX-XXXX",
+  "success": true,
-  "domain": "example.com"
+  "message": "License activated successfully."
 }
 ```
 
+### Error Codes
+
+| Code | Description |
+| ---- | ----------- |
+| `license_not_found` | License key does not exist |
+| `license_revoked` | License has been revoked |
+| `license_expired` | License has expired |
+| `license_inactive` | License is inactive |
+| `domain_mismatch` | License not valid for this domain |
+| `max_activations_reached` | Maximum activations reached |
+| `rate_limit_exceeded` | Too many requests (wait and retry) |
+
 ## License Statuses
 
 - **Active**: License is valid and usable
@@ -107,6 +208,18 @@ Content-Type: application/json
 - **Expired**: License validity period has ended
 - **Revoked**: License has been manually revoked by admin
 
+## Email Notifications
+
+The plugin sends automatic email notifications:
+
+- **Order Completion**: License keys included in order confirmation emails
+- **Expiration Warning (7 days)**: Reminder sent 7 days before expiration
+- **Expiration Warning (1 day)**: Urgent reminder sent 1 day before expiration
+
+## Changelog
+
+See [CHANGELOG.md](CHANGELOG.md) for version history and changes.
+
 ## Support
 
 For issues and feature requests, please visit:

assets/css/admin.css

@@ -165,3 +165,306 @@
     vertical-align: middle;
     margin-left: 5px;
 }
+
+/* Licenses Table Bulk Actions */
+.licenses-table {
+    margin-top: 0;
+}
+
+.licenses-table .check-column {
+    width: 2.2em;
+    padding: 0.5em;
+}
+
+.licenses-table .license-actions {
+    width: 150px;
+}
+
+.licenses-table .row-actions {
+    visibility: visible;
+    padding: 2px 0 0;
+}
+
+.licenses-table .row-actions a {
+    text-decoration: none;
+}
+
+.licenses-table .row-actions .submitdelete {
+    color: #b32d2e;
+}
+
+.licenses-table .row-actions .submitdelete:hover {
+    color: #dc3232;
+}
+
+/* Lifetime Badge */
+.license-lifetime {
+    display: inline-block;
+    padding: 0.2em 0.5em;
+    font-size: 0.85em;
+    font-weight: 500;
+    background-color: #e7f3ff;
+    color: #2271b1;
+    border-radius: 3px;
+}
+
+/* Bulk Actions Styling */
+.tablenav .actions select {
+    margin-right: 6px;
+}
+
+.tablenav .bulkactions {
+    padding: 0;
+}
+
+/* Transfer Modal */
+.wclp-modal {
+    position: fixed;
+    z-index: 100000;
+    left: 0;
+    top: 0;
+    width: 100%;
+    height: 100%;
+    background-color: rgba(0, 0, 0, 0.5);
+}
+
+.wclp-modal-content {
+    background-color: #fff;
+    margin: 10% auto;
+    padding: 20px 30px;
+    border-radius: 4px;
+    width: 500px;
+    max-width: 90%;
+    position: relative;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
+}
+
+.wclp-modal-close {
+    position: absolute;
+    right: 15px;
+    top: 10px;
+    font-size: 28px;
+    font-weight: bold;
+    cursor: pointer;
+    color: #666;
+}
+
+.wclp-modal-close:hover {
+    color: #000;
+}
+
+.wclp-modal h2 {
+    margin-top: 0;
+    padding-bottom: 10px;
+    border-bottom: 1px solid #ddd;
+}
+
+.wclp-modal .form-table th {
+    padding: 15px 10px 15px 0;
+    width: 120px;
+}
+
+.wclp-modal .submit {
+    border-top: 1px solid #ddd;
+    padding-top: 15px;
+    margin-bottom: 0;
+}
+
+/* Dashboard Styles */
+.wclp-dashboard-stats {
+    margin-top: 20px;
+}
+
+.wclp-stat-cards {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 15px;
+    margin-bottom: 20px;
+}
+
+.wclp-stat-card {
+    flex: 1;
+    min-width: 150px;
+    max-width: 200px;
+    background: #fff;
+    border: 1px solid #c3c4c7;
+    border-radius: 4px;
+    padding: 15px;
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+
+.wclp-stat-icon {
+    font-size: 32px;
+    line-height: 1;
+}
+
+.wclp-stat-icon .dashicons {
+    font-size: 32px;
+    width: 32px;
+    height: 32px;
+}
+
+.wclp-stat-content {
+    display: flex;
+    flex-direction: column;
+}
+
+.wclp-stat-number {
+    font-size: 24px;
+    font-weight: 600;
+    line-height: 1.2;
+}
+
+.wclp-stat-label {
+    font-size: 12px;
+    color: #646970;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+}
+
+.wclp-stat-total .wclp-stat-icon .dashicons {
+    color: #2271b1;
+}
+
+.wclp-stat-active .wclp-stat-icon .dashicons {
+    color: #00a32a;
+}
+
+.wclp-stat-inactive .wclp-stat-icon .dashicons {
+    color: #dba617;
+}
+
+.wclp-stat-expired .wclp-stat-icon .dashicons {
+    color: #d63638;
+}
+
+.wclp-stat-revoked .wclp-stat-icon .dashicons {
+    color: #646970;
+}
+
+.wclp-stat-row {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 20px;
+    margin-bottom: 20px;
+}
+
+.wclp-stat-box {
+    flex: 1;
+    min-width: 280px;
+    background: #fff;
+    border: 1px solid #c3c4c7;
+    border-radius: 4px;
+    padding: 15px 20px;
+}
+
+.wclp-stat-box.wclp-stat-full {
+    flex: 100%;
+    min-width: 100%;
+}
+
+.wclp-stat-box h3 {
+    margin-top: 0;
+    margin-bottom: 15px;
+    padding-bottom: 10px;
+    border-bottom: 1px solid #ddd;
+}
+
+.wclp-stat-box .widefat {
+    border: none;
+}
+
+.wclp-stat-value {
+    text-align: right;
+    font-weight: 600;
+}
+
+.wclp-stat-value.wclp-warning {
+    color: #d63638;
+}
+
+/* Dashboard Bar Chart */
+.wclp-chart-container {
+    overflow-x: auto;
+}
+
+.wclp-bar-chart {
+    display: flex;
+    align-items: flex-end;
+    gap: 10px;
+    height: 200px;
+    padding: 20px 0;
+}
+
+.wclp-bar-wrapper {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    flex: 1;
+    min-width: 50px;
+}
+
+.wclp-bar {
+    width: 100%;
+    max-width: 40px;
+    background: linear-gradient(180deg, #2271b1, #135e96);
+    border-radius: 3px 3px 0 0;
+    min-height: 4px;
+    position: relative;
+    transition: background 0.2s;
+}
+
+.wclp-bar:hover {
+    background: linear-gradient(180deg, #135e96, #0a4b78);
+}
+
+.wclp-bar-value {
+    position: absolute;
+    top: -20px;
+    left: 50%;
+    transform: translateX(-50%);
+    font-size: 11px;
+    font-weight: 600;
+    color: #1d2327;
+}
+
+.wclp-bar-label {
+    margin-top: 8px;
+    font-size: 10px;
+    color: #646970;
+    text-align: center;
+    white-space: nowrap;
+}
+
+/* Dashboard Actions */
+.wclp-dashboard-actions {
+    background: #fff;
+    border: 1px solid #c3c4c7;
+    border-radius: 4px;
+    padding: 15px 20px;
+    margin-top: 20px;
+}
+
+.wclp-dashboard-actions h2 {
+    margin-top: 0;
+    margin-bottom: 15px;
+}
+
+.wclp-action-buttons {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 10px;
+}
+
+.wclp-action-buttons .button .dashicons {
+    vertical-align: middle;
+    margin-right: 5px;
+    margin-top: -2px;
+}
+
+/* Wider actions column for transfer link */
+.licenses-table .license-actions {
+    width: 220px;
+}

assets/css/frontend.css

@@ -150,6 +150,39 @@
     flex-wrap: wrap;
 }
 
+.license-domain-display {
+    display: flex;
+    align-items: center;
+    gap: 0.5em;
+}
+
+/* Transfer Button */
+.wclp-transfer-btn {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.25em;
+    padding: 0.2em 0.6em;
+    background: #f0f0f0;
+    border: 1px solid #ddd;
+    border-radius: 3px;
+    font-size: 0.85em;
+    color: #555;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.wclp-transfer-btn:hover {
+    background: #e5e5e5;
+    border-color: #ccc;
+    color: #333;
+}
+
+.wclp-transfer-btn .dashicons {
+    font-size: 14px;
+    width: 14px;
+    height: 14px;
+}
+
 /* Download Section */
 .license-downloads {
     padding: 1em 1.5em;
@@ -323,4 +356,151 @@
         width: 45%;
         font-weight: 600;
     }
+
+    .license-domain-display {
+        flex-wrap: wrap;
+    }
+
+    .wclp-transfer-btn {
+        margin-top: 0.5em;
+    }
+}
+
+/* Transfer Modal */
+.wclp-modal {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: 100000;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.wclp-modal-overlay {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: rgba(0, 0, 0, 0.5);
+}
+
+.wclp-modal-content {
+    position: relative;
+    background: #fff;
+    padding: 2em;
+    border-radius: 8px;
+    max-width: 450px;
+    width: 90%;
+    max-height: 90vh;
+    overflow-y: auto;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
+}
+
+.wclp-modal-close {
+    position: absolute;
+    top: 0.5em;
+    right: 0.5em;
+    background: none;
+    border: none;
+    font-size: 1.5em;
+    cursor: pointer;
+    color: #666;
+    line-height: 1;
+    padding: 0.25em;
+}
+
+.wclp-modal-close:hover {
+    color: #333;
+}
+
+.wclp-modal-content h3 {
+    margin: 0 0 1.5em 0;
+    font-size: 1.25em;
+}
+
+.wclp-form-row {
+    margin-bottom: 1.5em;
+}
+
+.wclp-form-row label {
+    display: block;
+    font-weight: 600;
+    margin-bottom: 0.5em;
+    color: #333;
+}
+
+.wclp-form-row input[type="text"] {
+    width: 100%;
+    padding: 0.75em;
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    font-size: 1em;
+}
+
+.wclp-form-row input[type="text"]:focus {
+    outline: none;
+    border-color: #2271b1;
+    box-shadow: 0 0 0 1px #2271b1;
+}
+
+.wclp-current-domain {
+    margin: 0;
+}
+
+.wclp-current-domain code {
+    background: #f5f5f5;
+    padding: 0.4em 0.8em;
+    border-radius: 4px;
+    font-size: 1em;
+}
+
+.wclp-field-description {
+    margin: 0.5em 0 0 0;
+    font-size: 0.85em;
+    color: #666;
+}
+
+.wclp-form-actions {
+    display: flex;
+    gap: 1em;
+    margin-top: 2em;
+}
+
+.wclp-btn-primary {
+    background: #2271b1 !important;
+    border-color: #2271b1 !important;
+    color: #fff !important;
+}
+
+.wclp-btn-primary:hover {
+    background: #135e96 !important;
+    border-color: #135e96 !important;
+}
+
+.wclp-btn-primary:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+}
+
+.wclp-message {
+    margin-top: 1em;
+    padding: 0.75em 1em;
+    border-radius: 4px;
+    font-size: 0.95em;
+}
+
+.wclp-message.success {
+    background: #d4edda;
+    color: #155724;
+    border: 1px solid #c3e6cb;
+}
+
+.wclp-message.error {
+    background: #f8d7da;
+    color: #721c24;
+    border: 1px solid #f5c6cb;
 }

assets/js/frontend.js

@@ -8,12 +8,29 @@
     'use strict';
 
     var WCLicensedProductFrontend = {
+        $modal: null,
+        $form: null,
+
         init: function() {
+            this.$modal = $('#wclp-transfer-modal');
+            this.$form = $('#wclp-transfer-form');
             this.bindEvents();
         },
 
         bindEvents: function() {
             $(document).on('click', '.copy-license-btn', this.copyLicenseKey);
+
+            // Transfer modal events
+            $(document).on('click', '.wclp-transfer-btn', this.openTransferModal.bind(this));
+            $(document).on('click', '.wclp-modal-close, .wclp-modal-cancel, .wclp-modal-overlay', this.closeTransferModal.bind(this));
+            $(document).on('submit', '#wclp-transfer-form', this.submitTransfer.bind(this));
+
+            // Close modal on escape key
+            $(document).on('keyup', function(e) {
+                if (e.key === 'Escape') {
+                    WCLicensedProductFrontend.closeTransferModal();
+                }
+            });
         },
 
         /**
@@ -80,6 +97,106 @@
                     $(this).remove();
                 });
             }, 1500);
+        },
+
+        /**
+         * Open transfer modal
+         */
+        openTransferModal: function(e) {
+            e.preventDefault();
+
+            var $btn = $(e.currentTarget);
+            var licenseId = $btn.data('license-id');
+            var currentDomain = $btn.data('current-domain');
+
+            $('#transfer-license-id').val(licenseId);
+            $('#transfer-current-domain').text(currentDomain);
+            $('#transfer-new-domain').val('');
+            $('#wclp-transfer-message').hide().removeClass('success error');
+            $('#wclp-transfer-submit').prop('disabled', false);
+
+            this.$modal.show();
+            $('#transfer-new-domain').focus();
+        },
+
+        /**
+         * Close transfer modal
+         */
+        closeTransferModal: function(e) {
+            if (e && $(e.target).closest('.wclp-modal-content').length && !$(e.target).is('.wclp-modal-close, .wclp-modal-cancel')) {
+                return;
+            }
+            this.$modal.hide();
+        },
+
+        /**
+         * Submit transfer request
+         */
+        submitTransfer: function(e) {
+            e.preventDefault();
+
+            var self = this;
+            var licenseId = $('#transfer-license-id').val();
+            var newDomain = $('#transfer-new-domain').val().trim();
+            var $message = $('#wclp-transfer-message');
+            var $submit = $('#wclp-transfer-submit');
+
+            // Basic validation
+            if (!newDomain) {
+                $message.text(wcLicensedProduct.strings.invalidDomain)
+                    .removeClass('success').addClass('error').show();
+                return;
+            }
+
+            // Confirm transfer
+            if (!confirm(wcLicensedProduct.strings.transferConfirm)) {
+                return;
+            }
+
+            // Disable submit button
+            $submit.prop('disabled', true);
+            $message.hide();
+
+            // Send AJAX request
+            $.ajax({
+                url: wcLicensedProduct.ajaxUrl,
+                type: 'POST',
+                data: {
+                    action: 'wclp_customer_transfer_license',
+                    nonce: wcLicensedProduct.transferNonce,
+                    license_id: licenseId,
+                    new_domain: newDomain
+                },
+                success: function(response) {
+                    if (response.success) {
+                        $message.text(response.data.message)
+                            .removeClass('error').addClass('success').show();
+
+                        // Update the domain display in the license card
+                        var $domainDisplay = $('.license-domain-display[data-license-id="' + licenseId + '"]');
+                        $domainDisplay.find('.domain-value').text(response.data.new_domain);
+                        $domainDisplay.find('.wclp-transfer-btn').data('current-domain', response.data.new_domain);
+
+                        // Close modal after a short delay
+                        setTimeout(function() {
+                            self.closeTransferModal();
+                        }, 1500);
+                    } else {
+                        $message.text(response.data.message || wcLicensedProduct.strings.transferError)
+                            .removeClass('success').addClass('error').show();
+                        $submit.prop('disabled', false);
+                    }
+                },
+                error: function(xhr) {
+                    var message = wcLicensedProduct.strings.transferError;
+                    if (xhr.responseJSON && xhr.responseJSON.data && xhr.responseJSON.data.message) {
+                        message = xhr.responseJSON.data.message;
+                    }
+                    $message.text(message)
+                        .removeClass('success').addClass('error').show();
+                    $submit.prop('disabled', false);
+                }
+            });
         }
     };
 

openapi.json

@@ -0,0 +1,538 @@
+{
+  "openapi": "3.1.0",
+  "info": {
+    "title": "WooCommerce Licensed Product API",
+    "description": "REST API for validating and managing software licenses bound to domains. This API allows external applications to validate license keys, check license status, and activate licenses on specific domains.",
+    "version": "0.0.7",
+    "contact": {
+      "name": "Marco Graetsch",
+      "url": "https://src.bundespruefstelle.ch/magdev",
+      "email": "magdev3.0@gmail.com"
+    },
+    "license": {
+      "name": "GPL-2.0-or-later",
+      "url": "https://www.gnu.org/licenses/gpl-2.0.html"
+    }
+  },
+  "servers": [
+    {
+      "url": "{baseUrl}/wp-json/wc-licensed-product/v1",
+      "description": "WordPress REST API endpoint",
+      "variables": {
+        "baseUrl": {
+          "default": "https://example.com",
+          "description": "The base URL of your WordPress installation"
+        }
+      }
+    }
+  ],
+  "paths": {
+    "/validate": {
+      "post": {
+        "operationId": "validateLicense",
+        "summary": "Validate a license key for a domain",
+        "description": "Validates whether a license key is valid for a specific domain. Checks license status, expiration, and domain binding. This is the primary endpoint for software to verify license validity.",
+        "tags": ["License Validation"],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/ValidateRequest"
+              },
+              "example": {
+                "license_key": "ABCD-1234-EFGH-5678",
+                "domain": "example.com"
+              }
+            },
+            "application/x-www-form-urlencoded": {
+              "schema": {
+                "$ref": "#/components/schemas/ValidateRequest"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "License is valid for the specified domain",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ValidateSuccessResponse"
+                },
+                "example": {
+                  "valid": true,
+                  "license": {
+                    "product_id": 123,
+                    "expires_at": "2027-01-21",
+                    "version_id": 5
+                  }
+                }
+              }
+            }
+          },
+          "403": {
+            "description": "License validation failed",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ValidateErrorResponse"
+                },
+                "examples": {
+                  "license_not_found": {
+                    "summary": "License key not found",
+                    "value": {
+                      "valid": false,
+                      "error": "license_not_found",
+                      "message": "License key not found."
+                    }
+                  },
+                  "license_revoked": {
+                    "summary": "License has been revoked",
+                    "value": {
+                      "valid": false,
+                      "error": "license_revoked",
+                      "message": "This license has been revoked."
+                    }
+                  },
+                  "license_expired": {
+                    "summary": "License has expired",
+                    "value": {
+                      "valid": false,
+                      "error": "license_expired",
+                      "message": "This license has expired."
+                    }
+                  },
+                  "license_inactive": {
+                    "summary": "License is inactive",
+                    "value": {
+                      "valid": false,
+                      "error": "license_inactive",
+                      "message": "This license is inactive."
+                    }
+                  },
+                  "domain_mismatch": {
+                    "summary": "License not valid for this domain",
+                    "value": {
+                      "valid": false,
+                      "error": "domain_mismatch",
+                      "message": "This license is not valid for this domain."
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "429": {
+            "$ref": "#/components/responses/RateLimitExceeded"
+          }
+        }
+      }
+    },
+    "/status": {
+      "post": {
+        "operationId": "checkStatus",
+        "summary": "Get license status information",
+        "description": "Retrieves detailed status information for a license key, including validity, domain binding, expiration date, and activation counts.",
+        "tags": ["License Status"],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/StatusRequest"
+              },
+              "example": {
+                "license_key": "ABCD-1234-EFGH-5678"
+              }
+            },
+            "application/x-www-form-urlencoded": {
+              "schema": {
+                "$ref": "#/components/schemas/StatusRequest"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "License status retrieved successfully",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/StatusResponse"
+                },
+                "example": {
+                  "valid": true,
+                  "status": "active",
+                  "domain": "example.com",
+                  "expires_at": "2027-01-21",
+                  "activations_count": 1,
+                  "max_activations": 3
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "License key not found",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ErrorResponse"
+                },
+                "example": {
+                  "valid": false,
+                  "error": "license_not_found",
+                  "message": "License key not found."
+                }
+              }
+            }
+          },
+          "429": {
+            "$ref": "#/components/responses/RateLimitExceeded"
+          }
+        }
+      }
+    },
+    "/activate": {
+      "post": {
+        "operationId": "activateLicense",
+        "summary": "Activate a license on a domain",
+        "description": "Activates a license key on a specific domain. If the license is already activated on the same domain, returns success. If activating on a new domain, the old domain binding is replaced (single-domain licenses).",
+        "tags": ["License Activation"],
+        "requestBody": {
+          "required": true,
+          "content": {
+            "application/json": {
+              "schema": {
+                "$ref": "#/components/schemas/ActivateRequest"
+              },
+              "example": {
+                "license_key": "ABCD-1234-EFGH-5678",
+                "domain": "newdomain.com"
+              }
+            },
+            "application/x-www-form-urlencoded": {
+              "schema": {
+                "$ref": "#/components/schemas/ActivateRequest"
+              }
+            }
+          }
+        },
+        "responses": {
+          "200": {
+            "description": "License activated successfully or already activated",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ActivateSuccessResponse"
+                },
+                "examples": {
+                  "activated": {
+                    "summary": "License activated on new domain",
+                    "value": {
+                      "success": true,
+                      "message": "License activated successfully."
+                    }
+                  },
+                  "already_activated": {
+                    "summary": "License already activated on this domain",
+                    "value": {
+                      "success": true,
+                      "message": "License is already activated for this domain."
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "403": {
+            "description": "Activation failed due to license restrictions",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ErrorResponse"
+                },
+                "examples": {
+                  "license_invalid": {
+                    "summary": "License is not valid",
+                    "value": {
+                      "success": false,
+                      "error": "license_invalid",
+                      "message": "This license is not valid."
+                    }
+                  },
+                  "max_activations_reached": {
+                    "summary": "Maximum activations reached",
+                    "value": {
+                      "success": false,
+                      "error": "max_activations_reached",
+                      "message": "Maximum number of activations reached."
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "404": {
+            "description": "License key not found",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ErrorResponse"
+                },
+                "example": {
+                  "success": false,
+                  "error": "license_not_found",
+                  "message": "License key not found."
+                }
+              }
+            }
+          },
+          "429": {
+            "$ref": "#/components/responses/RateLimitExceeded"
+          },
+          "500": {
+            "description": "Server error during activation",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/ErrorResponse"
+                },
+                "example": {
+                  "success": false,
+                  "error": "activation_failed",
+                  "message": "Failed to activate license."
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {
+    "schemas": {
+      "ValidateRequest": {
+        "type": "object",
+        "required": ["license_key", "domain"],
+        "properties": {
+          "license_key": {
+            "type": "string",
+            "description": "The license key to validate (format: XXXX-XXXX-XXXX-XXXX)",
+            "maxLength": 64,
+            "example": "ABCD-1234-EFGH-5678"
+          },
+          "domain": {
+            "type": "string",
+            "description": "The domain to validate the license against",
+            "maxLength": 255,
+            "example": "example.com"
+          }
+        }
+      },
+      "ValidateSuccessResponse": {
+        "type": "object",
+        "properties": {
+          "valid": {
+            "type": "boolean",
+            "const": true,
+            "description": "Indicates the license is valid"
+          },
+          "license": {
+            "type": "object",
+            "properties": {
+              "product_id": {
+                "type": "integer",
+                "description": "WooCommerce product ID associated with the license"
+              },
+              "expires_at": {
+                "type": ["string", "null"],
+                "format": "date",
+                "description": "Expiration date (null for lifetime licenses)"
+              },
+              "version_id": {
+                "type": ["integer", "null"],
+                "description": "Product version ID if license is bound to a version"
+              }
+            }
+          }
+        }
+      },
+      "ValidateErrorResponse": {
+        "type": "object",
+        "properties": {
+          "valid": {
+            "type": "boolean",
+            "const": false,
+            "description": "Indicates validation failed"
+          },
+          "error": {
+            "type": "string",
+            "enum": ["license_not_found", "license_revoked", "license_expired", "license_inactive", "domain_mismatch"],
+            "description": "Error code for programmatic handling"
+          },
+          "message": {
+            "type": "string",
+            "description": "Human-readable error message"
+          }
+        }
+      },
+      "StatusRequest": {
+        "type": "object",
+        "required": ["license_key"],
+        "properties": {
+          "license_key": {
+            "type": "string",
+            "description": "The license key to check",
+            "example": "ABCD-1234-EFGH-5678"
+          }
+        }
+      },
+      "StatusResponse": {
+        "type": "object",
+        "properties": {
+          "valid": {
+            "type": "boolean",
+            "description": "Whether the license is currently valid"
+          },
+          "status": {
+            "type": "string",
+            "enum": ["active", "inactive", "expired", "revoked"],
+            "description": "Current license status"
+          },
+          "domain": {
+            "type": "string",
+            "description": "Domain the license is bound to"
+          },
+          "expires_at": {
+            "type": ["string", "null"],
+            "format": "date",
+            "description": "Expiration date (null for lifetime licenses)"
+          },
+          "activations_count": {
+            "type": "integer",
+            "description": "Current number of activations"
+          },
+          "max_activations": {
+            "type": "integer",
+            "description": "Maximum allowed activations"
+          }
+        }
+      },
+      "ActivateRequest": {
+        "type": "object",
+        "required": ["license_key", "domain"],
+        "properties": {
+          "license_key": {
+            "type": "string",
+            "description": "The license key to activate",
+            "example": "ABCD-1234-EFGH-5678"
+          },
+          "domain": {
+            "type": "string",
+            "description": "The domain to activate the license on",
+            "example": "newdomain.com"
+          }
+        }
+      },
+      "ActivateSuccessResponse": {
+        "type": "object",
+        "properties": {
+          "success": {
+            "type": "boolean",
+            "const": true,
+            "description": "Indicates activation was successful"
+          },
+          "message": {
+            "type": "string",
+            "description": "Human-readable success message"
+          }
+        }
+      },
+      "ErrorResponse": {
+        "type": "object",
+        "properties": {
+          "success": {
+            "type": "boolean",
+            "const": false,
+            "description": "Indicates the operation failed"
+          },
+          "valid": {
+            "type": "boolean",
+            "const": false,
+            "description": "Indicates validation failed (for validation endpoints)"
+          },
+          "error": {
+            "type": "string",
+            "description": "Error code for programmatic handling"
+          },
+          "message": {
+            "type": "string",
+            "description": "Human-readable error message"
+          }
+        }
+      },
+      "RateLimitResponse": {
+        "type": "object",
+        "properties": {
+          "success": {
+            "type": "boolean",
+            "const": false
+          },
+          "error": {
+            "type": "string",
+            "const": "rate_limit_exceeded"
+          },
+          "message": {
+            "type": "string",
+            "example": "Too many requests. Please try again later."
+          },
+          "retry_after": {
+            "type": "integer",
+            "description": "Seconds until rate limit resets"
+          }
+        }
+      }
+    },
+    "responses": {
+      "RateLimitExceeded": {
+        "description": "Rate limit exceeded (30 requests per minute per IP)",
+        "headers": {
+          "Retry-After": {
+            "schema": {
+              "type": "integer"
+            },
+            "description": "Seconds until the rate limit resets"
+          }
+        },
+        "content": {
+          "application/json": {
+            "schema": {
+              "$ref": "#/components/schemas/RateLimitResponse"
+            },
+            "example": {
+              "success": false,
+              "error": "rate_limit_exceeded",
+              "message": "Too many requests. Please try again later.",
+              "retry_after": 45
+            }
+          }
+        }
+      }
+    }
+  },
+  "tags": [
+    {
+      "name": "License Validation",
+      "description": "Validate license keys against domains"
+    },
+    {
+      "name": "License Status",
+      "description": "Check license status and details"
+    },
+    {
+      "name": "License Activation",
+      "description": "Activate licenses on domains"
+    }
+  ]
+}

src/Admin/SettingsController.php

@@ -0,0 +1,142 @@
+<?php
+/**
+ * Settings Controller
+ *
+ * @package Jeremias\WcLicensedProduct\Admin
+ */
+
+declare(strict_types=1);
+
+namespace Jeremias\WcLicensedProduct\Admin;
+
+/**
+ * Handles WooCommerce settings tab for license defaults
+ */
+final class SettingsController
+{
+    /**
+     * Settings option name
+     */
+    public const OPTION_NAME = 'wc_licensed_product_settings';
+
+    /**
+     * Constructor
+     */
+    public function __construct()
+    {
+        $this->registerHooks();
+    }
+
+    /**
+     * Register WordPress hooks
+     */
+    private function registerHooks(): void
+    {
+        add_filter('woocommerce_settings_tabs_array', [$this, 'addSettingsTab'], 50);
+        add_action('woocommerce_settings_tabs_licensed_product', [$this, 'renderSettingsTab']);
+        add_action('woocommerce_update_options_licensed_product', [$this, 'saveSettings']);
+    }
+
+    /**
+     * Add settings tab to WooCommerce settings
+     */
+    public function addSettingsTab(array $tabs): array
+    {
+        $tabs['licensed_product'] = __('Licensed Products', 'wc-licensed-product');
+        return $tabs;
+    }
+
+    /**
+     * Get settings fields
+     */
+    public function getSettingsFields(): array
+    {
+        return [
+            'section_title' => [
+                'name' => __('Default License Settings', 'wc-licensed-product'),
+                'type' => 'title',
+                'desc' => __('These settings serve as defaults for new licensed products. Individual product settings override these defaults.', 'wc-licensed-product'),
+                'id' => 'wc_licensed_product_section_defaults',
+            ],
+            'default_max_activations' => [
+                'name' => __('Default Max Activations', 'wc-licensed-product'),
+                'type' => 'number',
+                'desc' => __('Default maximum number of domain activations per license.', 'wc-licensed-product'),
+                'id' => 'wc_licensed_product_default_max_activations',
+                'default' => '1',
+                'custom_attributes' => [
+                    'min' => '1',
+                    'step' => '1',
+                ],
+            ],
+            'default_validity_days' => [
+                'name' => __('Default License Validity (Days)', 'wc-licensed-product'),
+                'type' => 'number',
+                'desc' => __('Default number of days a license is valid. Leave empty or set to 0 for lifetime licenses.', 'wc-licensed-product'),
+                'id' => 'wc_licensed_product_default_validity_days',
+                'default' => '',
+                'placeholder' => __('Lifetime', 'wc-licensed-product'),
+                'custom_attributes' => [
+                    'min' => '0',
+                    'step' => '1',
+                ],
+            ],
+            'default_bind_to_version' => [
+                'name' => __('Default Bind to Major Version', 'wc-licensed-product'),
+                'type' => 'checkbox',
+                'desc' => __('If enabled, licenses are bound to the major version at purchase time by default.', 'wc-licensed-product'),
+                'id' => 'wc_licensed_product_default_bind_to_version',
+                'default' => 'no',
+            ],
+            'section_end' => [
+                'type' => 'sectionend',
+                'id' => 'wc_licensed_product_section_defaults_end',
+            ],
+        ];
+    }
+
+    /**
+     * Render settings tab content
+     */
+    public function renderSettingsTab(): void
+    {
+        woocommerce_admin_fields($this->getSettingsFields());
+    }
+
+    /**
+     * Save settings
+     */
+    public function saveSettings(): void
+    {
+        woocommerce_update_options($this->getSettingsFields());
+    }
+
+    /**
+     * Get default max activations
+     */
+    public static function getDefaultMaxActivations(): int
+    {
+        $value = get_option('wc_licensed_product_default_max_activations', 1);
+        return max(1, (int) $value);
+    }
+
+    /**
+     * Get default validity days
+     */
+    public static function getDefaultValidityDays(): ?int
+    {
+        $value = get_option('wc_licensed_product_default_validity_days', '');
+        if ($value === '' || $value === '0') {
+            return null;
+        }
+        return (int) $value;
+    }
+
+    /**
+     * Get default bind to version setting
+     */
+    public static function getDefaultBindToVersion(): bool
+    {
+        return get_option('wc_licensed_product_default_bind_to_version', 'no') === 'yes';
+    }
+}

src/Api/RestApiController.php

@@ -180,25 +180,6 @@ final class RestApiController
                 ],
             ],
         ]);
-
-        // Deactivate license endpoint (public)
-        register_rest_route(self::NAMESPACE, '/deactivate', [
-            'methods' => WP_REST_Server::CREATABLE,
-            'callback' => [$this, 'deactivateLicense'],
-            'permission_callback' => '__return_true',
-            'args' => [
-                'license_key' => [
-                    'required' => true,
-                    'type' => 'string',
-                    'sanitize_callback' => 'sanitize_text_field',
-                ],
-                'domain' => [
-                    'required' => true,
-                    'type' => 'string',
-                    'sanitize_callback' => 'sanitize_text_field',
-                ],
-            ],
-        ]);
     }
 
     /**
@@ -318,55 +299,4 @@ final class RestApiController
             'message' => __('License activated successfully.', 'wc-licensed-product'),
         ]);
     }
-
-    /**
-     * Deactivate license endpoint
-     */
-    public function deactivateLicense(WP_REST_Request $request): WP_REST_Response
-    {
-        $rateLimitResponse = $this->checkRateLimit();
-        if ($rateLimitResponse !== null) {
-            return $rateLimitResponse;
-        }
-
-        $licenseKey = $request->get_param('license_key');
-        $domain = $request->get_param('domain');
-
-        $license = $this->licenseManager->getLicenseByKey($licenseKey);
-
-        if (!$license) {
-            return new WP_REST_Response([
-                'success' => false,
-                'error' => 'license_not_found',
-                'message' => __('License key not found.', 'wc-licensed-product'),
-            ], 404);
-        }
-
-        $normalizedDomain = $this->licenseManager->normalizeDomain($domain);
-
-        // Verify domain matches
-        if ($license->getDomain() !== $normalizedDomain) {
-            return new WP_REST_Response([
-                'success' => false,
-                'error' => 'domain_mismatch',
-                'message' => __('License is not activated for this domain.', 'wc-licensed-product'),
-            ], 403);
-        }
-
-        // Set status to inactive
-        $success = $this->licenseManager->updateLicenseStatus($license->getId(), 'inactive');
-
-        if (!$success) {
-            return new WP_REST_Response([
-                'success' => false,
-                'error' => 'deactivation_failed',
-                'message' => __('Failed to deactivate license.', 'wc-licensed-product'),
-            ], 500);
-        }
-
-        return new WP_REST_Response([
-            'success' => true,
-            'message' => __('License deactivated successfully.', 'wc-licensed-product'),
-        ]);
-    }
 }

src/Email/LicenseEmailController.php

@@ -34,6 +34,210 @@ final class LicenseEmailController
 
         // Add license info to order details in emails
         add_action('woocommerce_order_item_meta_end', [$this, 'addLicenseToOrderItem'], 10, 4);
+
+        // Schedule cron job for expiration warnings
+        add_action('init', [$this, 'scheduleExpirationCheck']);
+
+        // Cron action for checking expiring licenses
+        add_action('wclp_check_expiring_licenses', [$this, 'sendExpirationWarnings']);
+    }
+
+    /**
+     * Schedule the expiration check cron job
+     */
+    public function scheduleExpirationCheck(): void
+    {
+        if (!wp_next_scheduled('wclp_check_expiring_licenses')) {
+            wp_schedule_event(time(), 'daily', 'wclp_check_expiring_licenses');
+        }
+    }
+
+    /**
+     * Send expiration warning emails
+     */
+    public function sendExpirationWarnings(): void
+    {
+        // Check for licenses expiring in 7 days
+        $this->processExpirationWarnings(7, 'expiring_7_days');
+
+        // Check for licenses expiring in 1 day
+        $this->processExpirationWarnings(1, 'expiring_1_day');
+    }
+
+    /**
+     * Process and send expiration warnings for a specific time frame
+     *
+     * @param int $days Days until expiration
+     * @param string $notificationType Notification type identifier
+     */
+    private function processExpirationWarnings(int $days, string $notificationType): void
+    {
+        $licenses = $this->licenseManager->getLicensesExpiringSoon($days);
+
+        foreach ($licenses as $license) {
+            // Skip if already notified
+            if ($this->licenseManager->wasExpirationNotified($license->getId(), $notificationType)) {
+                continue;
+            }
+
+            // Send the warning email
+            if ($this->sendExpirationWarningEmail($license, $days)) {
+                // Mark as notified
+                $this->licenseManager->markExpirationNotified($license->getId(), $notificationType);
+            }
+        }
+    }
+
+    /**
+     * Send expiration warning email to customer
+     *
+     * @param \Jeremias\WcLicensedProduct\License\License $license License object
+     * @param int $daysRemaining Days until expiration
+     * @return bool Whether email was sent successfully
+     */
+    private function sendExpirationWarningEmail($license, int $daysRemaining): bool
+    {
+        $customer = get_userdata($license->getCustomerId());
+        if (!$customer || !$customer->user_email) {
+            return false;
+        }
+
+        $product = wc_get_product($license->getProductId());
+        $productName = $product ? $product->get_name() : __('Unknown Product', 'wc-licensed-product');
+
+        $siteName = get_bloginfo('name');
+        $expiresAt = $license->getExpiresAt();
+        $expirationDate = $expiresAt ? $expiresAt->format(get_option('date_format')) : '';
+
+        // Email subject
+        if ($daysRemaining === 1) {
+            $subject = sprintf(
+                /* translators: 1: Product name, 2: Site name */
+                __('[%2$s] Your license for %1$s expires tomorrow', 'wc-licensed-product'),
+                $productName,
+                $siteName
+            );
+        } else {
+            $subject = sprintf(
+                /* translators: 1: Product name, 2: Number of days, 3: Site name */
+                __('[%3$s] Your license for %1$s expires in %2$d days', 'wc-licensed-product'),
+                $productName,
+                $daysRemaining,
+                $siteName
+            );
+        }
+
+        // Email content
+        $message = $this->buildExpirationWarningHtml($license, $customer, $productName, $daysRemaining, $expirationDate);
+
+        // Send email
+        $headers = [
+            'Content-Type: text/html; charset=UTF-8',
+            'From: ' . $siteName . ' <' . get_option('admin_email') . '>',
+        ];
+
+        return wp_mail($customer->user_email, $subject, $message, $headers);
+    }
+
+    /**
+     * Build HTML content for expiration warning email
+     *
+     * @param \Jeremias\WcLicensedProduct\License\License $license License object
+     * @param \WP_User $customer Customer user object
+     * @param string $productName Product name
+     * @param int $daysRemaining Days until expiration
+     * @param string $expirationDate Formatted expiration date
+     * @return string HTML email content
+     */
+    private function buildExpirationWarningHtml($license, $customer, string $productName, int $daysRemaining, string $expirationDate): string
+    {
+        $siteName = get_bloginfo('name');
+        $siteUrl = home_url();
+        $accountUrl = wc_get_account_endpoint_url('licenses');
+
+        ob_start();
+        ?>
+        <!DOCTYPE html>
+        <html>
+        <head>
+            <meta charset="UTF-8">
+            <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        </head>
+        <body style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; max-width: 600px; margin: 0 auto; padding: 20px;">
+            <div style="background: #f8f9fa; padding: 30px; border-radius: 8px;">
+                <h1 style="color: #333; margin-top: 0; font-size: 24px;">
+                    <?php esc_html_e('License Expiration Notice', 'wc-licensed-product'); ?>
+                </h1>
+
+                <p><?php printf(esc_html__('Hello %s,', 'wc-licensed-product'), esc_html($customer->display_name)); ?></p>
+
+                <?php if ($daysRemaining === 1): ?>
+                    <p style="color: #dc3545; font-weight: 600;">
+                        <?php printf(
+                            esc_html__('Your license for %s will expire tomorrow (%s).', 'wc-licensed-product'),
+                            esc_html($productName),
+                            esc_html($expirationDate)
+                        ); ?>
+                    </p>
+                <?php else: ?>
+                    <p style="color: #ffc107; font-weight: 600;">
+                        <?php printf(
+                            esc_html__('Your license for %1$s will expire in %2$d days (%3$s).', 'wc-licensed-product'),
+                            esc_html($productName),
+                            $daysRemaining,
+                            esc_html($expirationDate)
+                        ); ?>
+                    </p>
+                <?php endif; ?>
+
+                <div style="background: #fff; padding: 20px; border-radius: 4px; margin: 20px 0; border: 1px solid #e5e5e5;">
+                    <h3 style="margin-top: 0; font-size: 16px;"><?php esc_html_e('License Details', 'wc-licensed-product'); ?></h3>
+                    <table style="width: 100%; border-collapse: collapse;">
+                        <tr>
+                            <td style="padding: 8px 0; color: #666;"><?php esc_html_e('Product:', 'wc-licensed-product'); ?></td>
+                            <td style="padding: 8px 0; font-weight: 600;"><?php echo esc_html($productName); ?></td>
+                        </tr>
+                        <tr>
+                            <td style="padding: 8px 0; color: #666;"><?php esc_html_e('License Key:', 'wc-licensed-product'); ?></td>
+                            <td style="padding: 8px 0;">
+                                <code style="background: #f5f5f5; padding: 3px 8px; border-radius: 3px; font-family: monospace;">
+                                    <?php echo esc_html($license->getLicenseKey()); ?>
+                                </code>
+                            </td>
+                        </tr>
+                        <tr>
+                            <td style="padding: 8px 0; color: #666;"><?php esc_html_e('Domain:', 'wc-licensed-product'); ?></td>
+                            <td style="padding: 8px 0;"><?php echo esc_html($license->getDomain()); ?></td>
+                        </tr>
+                        <tr>
+                            <td style="padding: 8px 0; color: #666;"><?php esc_html_e('Expires:', 'wc-licensed-product'); ?></td>
+                            <td style="padding: 8px 0; color: #dc3545; font-weight: 600;"><?php echo esc_html($expirationDate); ?></td>
+                        </tr>
+                    </table>
+                </div>
+
+                <p><?php esc_html_e('To continue using this product, please renew your license before the expiration date.', 'wc-licensed-product'); ?></p>
+
+                <p style="margin-top: 25px;">
+                    <a href="<?php echo esc_url($accountUrl); ?>"
+                       style="display: inline-block; background: #2271b1; color: #fff; padding: 12px 24px; text-decoration: none; border-radius: 4px; font-weight: 600;">
+                        <?php esc_html_e('View My Licenses', 'wc-licensed-product'); ?>
+                    </a>
+                </p>
+
+                <hr style="border: none; border-top: 1px solid #e5e5e5; margin: 30px 0;">
+
+                <p style="font-size: 14px; color: #666; margin-bottom: 0;">
+                    <?php printf(
+                        esc_html__('This email was sent from %s.', 'wc-licensed-product'),
+                        '<a href="' . esc_url($siteUrl) . '" style="color: #2271b1;">' . esc_html($siteName) . '</a>'
+                    ); ?>
+                </p>
+            </div>
+        </body>
+        </html>
+        <?php
+        return ob_get_clean();
     }
 
     /**

src/Frontend/AccountController.php

@@ -52,6 +52,9 @@ final class AccountController
 
         // Enqueue frontend styles and scripts
         add_action('wp_enqueue_scripts', [$this, 'enqueueAssets']);
+
+        // AJAX handler for license transfer request
+        add_action('wp_ajax_wclp_customer_transfer_license', [$this, 'handleTransferRequest']);
     }
 
     /**
@@ -181,7 +184,19 @@ final class AccountController
                         </div>
 
                         <div class="license-info-row">
-                            <span><strong><?php esc_html_e('Domain:', 'wc-licensed-product'); ?></strong> <?php echo esc_html($item['license']->getDomain()); ?></span>
+                            <span class="license-domain-display" data-license-id="<?php echo esc_attr($item['license']->getId()); ?>">
+                                <strong><?php esc_html_e('Domain:', 'wc-licensed-product'); ?></strong>
+                                <span class="domain-value"><?php echo esc_html($item['license']->getDomain()); ?></span>
+                                <?php if (in_array($item['license']->getStatus(), ['active', 'inactive'], true)): ?>
+                                    <button type="button" class="wclp-transfer-btn"
+                                            data-license-id="<?php echo esc_attr($item['license']->getId()); ?>"
+                                            data-current-domain="<?php echo esc_attr($item['license']->getDomain()); ?>"
+                                            title="<?php esc_attr_e('Transfer to new domain', 'wc-licensed-product'); ?>">
+                                        <span class="dashicons dashicons-randomize"></span>
+                                        <?php esc_html_e('Transfer', 'wc-licensed-product'); ?>
+                                    </button>
+                                <?php endif; ?>
+                            </span>
                             <span><strong><?php esc_html_e('Expires:', 'wc-licensed-product'); ?></strong>
                                 <?php
                                 $expiresAt = $item['license']->getExpiresAt();
@@ -213,6 +228,40 @@ final class AccountController
                 </div>
             <?php endforeach; ?>
         </div>
+
+        <!-- Transfer Modal -->
+        <div id="wclp-transfer-modal" class="wclp-modal" style="display:none;">
+            <div class="wclp-modal-overlay"></div>
+            <div class="wclp-modal-content">
+                <button type="button" class="wclp-modal-close" aria-label="<?php esc_attr_e('Close', 'wc-licensed-product'); ?>">&times;</button>
+                <h3><?php esc_html_e('Transfer License to New Domain', 'wc-licensed-product'); ?></h3>
+                <form id="wclp-transfer-form">
+                    <input type="hidden" name="license_id" id="transfer-license-id" value="">
+
+                    <div class="wclp-form-row">
+                        <label><?php esc_html_e('Current Domain', 'wc-licensed-product'); ?></label>
+                        <p class="wclp-current-domain"><code id="transfer-current-domain"></code></p>
+                    </div>
+
+                    <div class="wclp-form-row">
+                        <label for="transfer-new-domain"><?php esc_html_e('New Domain', 'wc-licensed-product'); ?></label>
+                        <input type="text" name="new_domain" id="transfer-new-domain"
+                               placeholder="example.com" required
+                               pattern="[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?)+">
+                        <p class="wclp-field-description"><?php esc_html_e('Enter the new domain without http:// or www.', 'wc-licensed-product'); ?></p>
+                    </div>
+
+                    <div class="wclp-form-row wclp-form-actions">
+                        <button type="submit" class="button wclp-btn-primary" id="wclp-transfer-submit">
+                            <?php esc_html_e('Transfer License', 'wc-licensed-product'); ?>
+                        </button>
+                        <button type="button" class="button wclp-modal-cancel"><?php esc_html_e('Cancel', 'wc-licensed-product'); ?></button>
+                    </div>
+
+                    <div id="wclp-transfer-message" class="wclp-message" style="display:none;"></div>
+                </form>
+            </div>
+        </div>
         <?php
     }
 
@@ -241,10 +290,111 @@ final class AccountController
         );
 
         wp_localize_script('wc-licensed-product-frontend', 'wcLicensedProduct', [
+            'ajaxUrl' => admin_url('admin-ajax.php'),
+            'transferNonce' => wp_create_nonce('wclp_customer_transfer'),
             'strings' => [
                 'copied' => __('Copied!', 'wc-licensed-product'),
                 'copyFailed' => __('Copy failed', 'wc-licensed-product'),
+                'transferSuccess' => __('License transferred successfully!', 'wc-licensed-product'),
+                'transferError' => __('Transfer failed. Please try again.', 'wc-licensed-product'),
+                'transferConfirm' => __('Are you sure you want to transfer this license to a new domain? This action cannot be undone.', 'wc-licensed-product'),
+                'invalidDomain' => __('Please enter a valid domain.', 'wc-licensed-product'),
             ],
         ]);
     }
+
+    /**
+     * Handle AJAX license transfer request from customer
+     */
+    public function handleTransferRequest(): void
+    {
+        // Verify nonce
+        if (!check_ajax_referer('wclp_customer_transfer', 'nonce', false)) {
+            wp_send_json_error(['message' => __('Security check failed.', 'wc-licensed-product')], 403);
+        }
+
+        // Verify user is logged in
+        $customerId = get_current_user_id();
+        if (!$customerId) {
+            wp_send_json_error(['message' => __('Please log in to transfer a license.', 'wc-licensed-product')], 401);
+        }
+
+        // Get and validate license ID
+        $licenseId = isset($_POST['license_id']) ? absint($_POST['license_id']) : 0;
+        if (!$licenseId) {
+            wp_send_json_error(['message' => __('Invalid license.', 'wc-licensed-product')], 400);
+        }
+
+        // Get and validate new domain
+        $newDomain = isset($_POST['new_domain']) ? sanitize_text_field($_POST['new_domain']) : '';
+        $newDomain = $this->normalizeDomain($newDomain);
+
+        if (empty($newDomain)) {
+            wp_send_json_error(['message' => __('Please enter a valid domain.', 'wc-licensed-product')], 400);
+        }
+
+        // Verify the license belongs to this customer
+        $license = $this->licenseManager->getLicenseById($licenseId);
+        if (!$license) {
+            wp_send_json_error(['message' => __('License not found.', 'wc-licensed-product')], 404);
+        }
+
+        if ($license->getCustomerId() !== $customerId) {
+            wp_send_json_error(['message' => __('You do not have permission to transfer this license.', 'wc-licensed-product')], 403);
+        }
+
+        // Check if license is in a transferable state
+        if ($license->getStatus() === 'revoked') {
+            wp_send_json_error(['message' => __('Revoked licenses cannot be transferred.', 'wc-licensed-product')], 400);
+        }
+
+        if ($license->getStatus() === 'expired') {
+            wp_send_json_error(['message' => __('Expired licenses cannot be transferred.', 'wc-licensed-product')], 400);
+        }
+
+        // Check if domain is the same
+        if ($license->getDomain() === $newDomain) {
+            wp_send_json_error(['message' => __('The new domain is the same as the current domain.', 'wc-licensed-product')], 400);
+        }
+
+        // Perform the transfer
+        $result = $this->licenseManager->transferLicense($licenseId, $newDomain);
+
+        if ($result) {
+            wp_send_json_success([
+                'message' => __('License transferred successfully!', 'wc-licensed-product'),
+                'new_domain' => $newDomain,
+            ]);
+        } else {
+            wp_send_json_error(['message' => __('Failed to transfer license. Please try again.', 'wc-licensed-product')], 500);
+        }
+    }
+
+    /**
+     * Normalize domain for comparison and storage
+     */
+    private function normalizeDomain(string $domain): string
+    {
+        // Remove protocol if present
+        $domain = preg_replace('#^https?://#i', '', $domain);
+
+        // Remove www prefix
+        $domain = preg_replace('#^www\.#i', '', $domain);
+
+        // Remove trailing slash
+        $domain = rtrim($domain, '/');
+
+        // Remove path if present
+        $domain = explode('/', $domain)[0];
+
+        // Convert to lowercase
+        $domain = strtolower($domain);
+
+        // Basic validation - must contain at least one dot and valid characters
+        if (!preg_match('/^[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)+$/', $domain)) {
+            return '';
+        }
+
+        return $domain;
+    }
 }

src/Installer.php

@@ -44,6 +44,12 @@ final class Installer
      */
     public static function deactivate(): void
     {
+        // Clear scheduled cron events
+        $timestamp = wp_next_scheduled('wclp_check_expiring_licenses');
+        if ($timestamp) {
+            wp_unschedule_event($timestamp, 'wclp_check_expiring_licenses');
+        }
+
         // Flush rewrite rules
         flush_rewrite_rules();
     }

src/License/LicenseManager.php

@@ -176,21 +176,63 @@ class LicenseManager
     }
 
     /**
-     * Get all licenses (for admin)
+     * Get all licenses (for admin) with optional filtering
+     *
+     * @param int $page Page number
+     * @param int $perPage Items per page
+     * @param array $filters Optional filters: search, status, product_id, customer_id
+     * @return array Array of License objects
      */
-    public function getAllLicenses(int $page = 1, int $perPage = 20): array
+    public function getAllLicenses(int $page = 1, int $perPage = 20, array $filters = []): array
     {
         global $wpdb;
 
         $tableName = Installer::getLicensesTable();
         $offset = ($page - 1) * $perPage;
 
+        $where = [];
+        $params = [];
+
+        // Search filter (searches license key, domain, customer email)
+        if (!empty($filters['search'])) {
+            $search = '%' . $wpdb->esc_like($filters['search']) . '%';
+            $where[] = "(license_key LIKE %s OR domain LIKE %s)";
+            $params[] = $search;
+            $params[] = $search;
+        }
+
+        // Status filter
+        if (!empty($filters['status']) && in_array($filters['status'], [
+            License::STATUS_ACTIVE,
+            License::STATUS_INACTIVE,
+            License::STATUS_EXPIRED,
+            License::STATUS_REVOKED,
+        ], true)) {
+            $where[] = "status = %s";
+            $params[] = $filters['status'];
+        }
+
+        // Product filter
+        if (!empty($filters['product_id'])) {
+            $where[] = "product_id = %d";
+            $params[] = absint($filters['product_id']);
+        }
+
+        // Customer filter
+        if (!empty($filters['customer_id'])) {
+            $where[] = "customer_id = %d";
+            $params[] = absint($filters['customer_id']);
+        }
+
+        $whereClause = !empty($where) ? 'WHERE ' . implode(' AND ', $where) : '';
+
+        $params[] = $perPage;
+        $params[] = $offset;
+
+        $sql = "SELECT * FROM {$tableName} {$whereClause} ORDER BY created_at DESC LIMIT %d OFFSET %d";
+
         $rows = $wpdb->get_results(
-            $wpdb->prepare(
+            $wpdb->prepare($sql, $params),
-                "SELECT * FROM {$tableName} ORDER BY created_at DESC LIMIT %d OFFSET %d",
-                $perPage,
-                $offset
-            ),
             ARRAY_A
         );
 
@@ -198,16 +240,85 @@ class LicenseManager
     }
 
     /**
-     * Get total license count
+     * Get total license count with optional filtering
+     *
+     * @param array $filters Optional filters: search, status, product_id, customer_id
+     * @return int Total count
      */
-    public function getLicenseCount(): int
+    public function getLicenseCount(array $filters = []): int
     {
         global $wpdb;
 
         $tableName = Installer::getLicensesTable();
+
+        $where = [];
+        $params = [];
+
+        // Search filter
+        if (!empty($filters['search'])) {
+            $search = '%' . $wpdb->esc_like($filters['search']) . '%';
+            $where[] = "(license_key LIKE %s OR domain LIKE %s)";
+            $params[] = $search;
+            $params[] = $search;
+        }
+
+        // Status filter
+        if (!empty($filters['status']) && in_array($filters['status'], [
+            License::STATUS_ACTIVE,
+            License::STATUS_INACTIVE,
+            License::STATUS_EXPIRED,
+            License::STATUS_REVOKED,
+        ], true)) {
+            $where[] = "status = %s";
+            $params[] = $filters['status'];
+        }
+
+        // Product filter
+        if (!empty($filters['product_id'])) {
+            $where[] = "product_id = %d";
+            $params[] = absint($filters['product_id']);
+        }
+
+        // Customer filter
+        if (!empty($filters['customer_id'])) {
+            $where[] = "customer_id = %d";
+            $params[] = absint($filters['customer_id']);
+        }
+
+        $whereClause = !empty($where) ? 'WHERE ' . implode(' AND ', $where) : '';
+
+        if (empty($params)) {
             return (int) $wpdb->get_var("SELECT COUNT(*) FROM {$tableName}");
         }
 
+        return (int) $wpdb->get_var(
+            $wpdb->prepare("SELECT COUNT(*) FROM {$tableName} {$whereClause}", $params)
+        );
+    }
+
+    /**
+     * Get all licensed products for filter dropdown
+     *
+     * @return array Array of [id => name] pairs
+     */
+    public function getLicensedProducts(): array
+    {
+        global $wpdb;
+
+        $tableName = Installer::getLicensesTable();
+        $productIds = $wpdb->get_col("SELECT DISTINCT product_id FROM {$tableName}");
+
+        $products = [];
+        foreach ($productIds as $productId) {
+            $product = wc_get_product((int) $productId);
+            if ($product) {
+                $products[(int) $productId] = $product->get_name();
+            }
+        }
+
+        return $products;
+    }
+
     /**
      * Validate a license key for a domain
      */
@@ -360,4 +471,430 @@ class LicenseManager
 
         return $versionId ? (int) $versionId : null;
     }
+
+    /**
+     * Extend license expiration
+     *
+     * @param int $licenseId License ID
+     * @param int $days Number of days to extend
+     * @return bool Success
+     */
+    public function extendLicense(int $licenseId, int $days): bool
+    {
+        global $wpdb;
+
+        $license = $this->getLicenseById($licenseId);
+        if (!$license) {
+            return false;
+        }
+
+        // Calculate new expiration date
+        $currentExpiry = $license->getExpiresAt();
+        if ($currentExpiry === null) {
+            // License is lifetime, set expiration from now
+            $newExpiry = (new \DateTimeImmutable())->modify("+{$days} days");
+        } elseif ($currentExpiry < new \DateTimeImmutable()) {
+            // License is expired, extend from now
+            $newExpiry = (new \DateTimeImmutable())->modify("+{$days} days");
+        } else {
+            // License still valid, extend from current expiry
+            $newExpiry = \DateTimeImmutable::createFromInterface($currentExpiry)->modify("+{$days} days");
+        }
+
+        $tableName = Installer::getLicensesTable();
+        $result = $wpdb->update(
+            $tableName,
+            ['expires_at' => $newExpiry->format('Y-m-d H:i:s')],
+            ['id' => $licenseId],
+            ['%s'],
+            ['%d']
+        );
+
+        // If license was expired, reactivate it
+        if ($result !== false && $license->getStatus() === License::STATUS_EXPIRED) {
+            $this->updateLicenseStatus($licenseId, License::STATUS_ACTIVE);
+        }
+
+        return $result !== false;
+    }
+
+    /**
+     * Set license to lifetime (no expiration)
+     *
+     * @param int $licenseId License ID
+     * @return bool Success
+     */
+    public function setLicenseLifetime(int $licenseId): bool
+    {
+        global $wpdb;
+
+        $license = $this->getLicenseById($licenseId);
+
+        $tableName = Installer::getLicensesTable();
+        // Use raw query to set NULL
+        $result = $wpdb->query(
+            $wpdb->prepare(
+                "UPDATE {$tableName} SET expires_at = NULL WHERE id = %d",
+                $licenseId
+            )
+        );
+
+        // If license was expired, reactivate it
+        if ($result !== false && $license && $license->getStatus() === License::STATUS_EXPIRED) {
+            $this->updateLicenseStatus($licenseId, License::STATUS_ACTIVE);
+        }
+
+        return $result !== false;
+    }
+
+    /**
+     * Bulk update license status
+     *
+     * @param array $licenseIds Array of license IDs
+     * @param string $status New status
+     * @return int Number of licenses updated
+     */
+    public function bulkUpdateStatus(array $licenseIds, string $status): int
+    {
+        global $wpdb;
+
+        if (empty($licenseIds)) {
+            return 0;
+        }
+
+        $tableName = Installer::getLicensesTable();
+        $ids = array_map('absint', $licenseIds);
+        $placeholders = implode(',', array_fill(0, count($ids), '%d'));
+
+        $result = $wpdb->query(
+            $wpdb->prepare(
+                "UPDATE {$tableName} SET status = %s WHERE id IN ({$placeholders})",
+                array_merge([$status], $ids)
+            )
+        );
+
+        return $result !== false ? (int) $result : 0;
+    }
+
+    /**
+     * Bulk delete licenses
+     *
+     * @param array $licenseIds Array of license IDs
+     * @return int Number of licenses deleted
+     */
+    public function bulkDelete(array $licenseIds): int
+    {
+        global $wpdb;
+
+        if (empty($licenseIds)) {
+            return 0;
+        }
+
+        $tableName = Installer::getLicensesTable();
+        $ids = array_map('absint', $licenseIds);
+        $placeholders = implode(',', array_fill(0, count($ids), '%d'));
+
+        $result = $wpdb->query(
+            $wpdb->prepare(
+                "DELETE FROM {$tableName} WHERE id IN ({$placeholders})",
+                $ids
+            )
+        );
+
+        return $result !== false ? (int) $result : 0;
+    }
+
+    /**
+     * Bulk extend licenses
+     *
+     * @param array $licenseIds Array of license IDs
+     * @param int $days Number of days to extend
+     * @return int Number of licenses extended
+     */
+    public function bulkExtend(array $licenseIds, int $days): int
+    {
+        $count = 0;
+        foreach ($licenseIds as $licenseId) {
+            if ($this->extendLicense((int) $licenseId, $days)) {
+                $count++;
+            }
+        }
+        return $count;
+    }
+
+    /**
+     * Transfer license to a new domain
+     *
+     * @param int $licenseId License ID
+     * @param string $newDomain New domain to transfer to
+     * @return bool Success
+     */
+    public function transferLicense(int $licenseId, string $newDomain): bool
+    {
+        $license = $this->getLicenseById($licenseId);
+        if (!$license) {
+            return false;
+        }
+
+        // Cannot transfer revoked licenses
+        if ($license->getStatus() === License::STATUS_REVOKED) {
+            return false;
+        }
+
+        return $this->updateLicenseDomain($licenseId, $newDomain);
+    }
+
+    /**
+     * Get license statistics
+     *
+     * @return array Statistics data
+     */
+    public function getStatistics(): array
+    {
+        global $wpdb;
+
+        $tableName = Installer::getLicensesTable();
+
+        // Get counts by status
+        $statusCounts = $wpdb->get_results(
+            "SELECT status, COUNT(*) as count FROM {$tableName} GROUP BY status",
+            ARRAY_A
+        );
+
+        $byStatus = [
+            License::STATUS_ACTIVE => 0,
+            License::STATUS_INACTIVE => 0,
+            License::STATUS_EXPIRED => 0,
+            License::STATUS_REVOKED => 0,
+        ];
+        foreach ($statusCounts ?: [] as $row) {
+            $byStatus[$row['status']] = (int) $row['count'];
+        }
+
+        // Get total count
+        $total = array_sum($byStatus);
+
+        // Get lifetime vs expiring licenses
+        $lifetimeCount = (int) $wpdb->get_var(
+            "SELECT COUNT(*) FROM {$tableName} WHERE expires_at IS NULL"
+        );
+        $expiringCount = $total - $lifetimeCount;
+
+        // Get licenses expiring soon (next 30 days)
+        $expiringSoon = (int) $wpdb->get_var(
+            $wpdb->prepare(
+                "SELECT COUNT(*) FROM {$tableName} WHERE expires_at IS NOT NULL AND expires_at <= %s AND expires_at > NOW() AND status = %s",
+                (new \DateTimeImmutable())->modify('+30 days')->format('Y-m-d H:i:s'),
+                License::STATUS_ACTIVE
+            )
+        );
+
+        // Get licenses by product
+        $byProduct = $wpdb->get_results(
+            "SELECT product_id, COUNT(*) as count FROM {$tableName} GROUP BY product_id ORDER BY count DESC LIMIT 10",
+            ARRAY_A
+        );
+
+        $productStats = [];
+        foreach ($byProduct ?: [] as $row) {
+            $product = wc_get_product((int) $row['product_id']);
+            $productStats[] = [
+                'product_id' => (int) $row['product_id'],
+                'product_name' => $product ? $product->get_name() : __('Unknown Product', 'wc-licensed-product'),
+                'count' => (int) $row['count'],
+            ];
+        }
+
+        // Get licenses created per month (last 12 months)
+        $monthlyData = $wpdb->get_results(
+            "SELECT DATE_FORMAT(created_at, '%Y-%m') as month, COUNT(*) as count
+             FROM {$tableName}
+             WHERE created_at >= DATE_SUB(NOW(), INTERVAL 12 MONTH)
+             GROUP BY DATE_FORMAT(created_at, '%Y-%m')
+             ORDER BY month ASC",
+            ARRAY_A
+        );
+
+        $monthlyStats = [];
+        foreach ($monthlyData ?: [] as $row) {
+            $monthlyStats[$row['month']] = (int) $row['count'];
+        }
+
+        // Get top domains
+        $topDomains = $wpdb->get_results(
+            "SELECT domain, COUNT(*) as count FROM {$tableName} GROUP BY domain ORDER BY count DESC LIMIT 10",
+            ARRAY_A
+        );
+
+        return [
+            'total' => $total,
+            'by_status' => $byStatus,
+            'lifetime' => $lifetimeCount,
+            'expiring' => $expiringCount,
+            'expiring_soon' => $expiringSoon,
+            'by_product' => $productStats,
+            'monthly' => $monthlyStats,
+            'top_domains' => $topDomains ?: [],
+        ];
+    }
+
+    /**
+     * Get licenses expiring within specified days
+     *
+     * @param int $days Number of days to look ahead
+     * @param bool $excludeNotified Whether to exclude already notified licenses
+     * @return array Array of License objects with customer data
+     */
+    public function getLicensesExpiringSoon(int $days = 7, bool $excludeNotified = true): array
+    {
+        global $wpdb;
+
+        $tableName = Installer::getLicensesTable();
+        $now = new \DateTimeImmutable();
+        $future = $now->modify("+{$days} days");
+
+        $sql = "SELECT * FROM {$tableName}
+                WHERE expires_at IS NOT NULL
+                AND expires_at > %s
+                AND expires_at <= %s
+                AND status = %s";
+
+        $params = [
+            $now->format('Y-m-d H:i:s'),
+            $future->format('Y-m-d H:i:s'),
+            License::STATUS_ACTIVE,
+        ];
+
+        $rows = $wpdb->get_results(
+            $wpdb->prepare($sql, $params),
+            ARRAY_A
+        );
+
+        return array_map(fn(array $row) => License::fromArray($row), $rows ?: []);
+    }
+
+    /**
+     * Mark license as notified for expiration warning
+     *
+     * @param int $licenseId License ID
+     * @param string $notificationType Type of notification (e.g., 'expiring_7_days', 'expiring_1_day')
+     * @return bool Success
+     */
+    public function markExpirationNotified(int $licenseId, string $notificationType): bool
+    {
+        $metaKey = '_wclp_expiration_notified_' . sanitize_key($notificationType);
+        update_user_meta($this->getLicenseById($licenseId)?->getCustomerId() ?? 0, $metaKey . '_' . $licenseId, current_time('mysql'));
+        return true;
+    }
+
+    /**
+     * Check if license was already notified for expiration
+     *
+     * @param int $licenseId License ID
+     * @param string $notificationType Type of notification
+     * @return bool Whether already notified
+     */
+    public function wasExpirationNotified(int $licenseId, string $notificationType): bool
+    {
+        $license = $this->getLicenseById($licenseId);
+        if (!$license) {
+            return true; // Consider notified if license doesn't exist
+        }
+
+        $metaKey = '_wclp_expiration_notified_' . sanitize_key($notificationType) . '_' . $licenseId;
+        return (bool) get_user_meta($license->getCustomerId(), $metaKey, true);
+    }
+
+    /**
+     * Import a license from CSV data
+     *
+     * @param string $licenseKey License key
+     * @param int $productId Product ID
+     * @param int $customerId Customer ID
+     * @param string $domain Domain name
+     * @param int $orderId Order ID (optional)
+     * @param string $status License status
+     * @param int $maxActivations Maximum activations
+     * @param int $activationsCount Current activation count
+     * @param \DateTimeImmutable|null $expiresAt Expiration date or null for lifetime
+     * @return bool Success
+     */
+    public function importLicense(
+        string $licenseKey,
+        int $productId,
+        int $customerId,
+        string $domain,
+        int $orderId = 0,
+        string $status = License::STATUS_ACTIVE,
+        int $maxActivations = 1,
+        int $activationsCount = 1,
+        ?\DateTimeImmutable $expiresAt = null
+    ): bool {
+        global $wpdb;
+
+        $tableName = Installer::getLicensesTable();
+
+        $result = $wpdb->insert(
+            $tableName,
+            [
+                'license_key' => $licenseKey,
+                'order_id' => $orderId,
+                'product_id' => $productId,
+                'customer_id' => $customerId,
+                'domain' => $this->normalizeDomain($domain),
+                'version_id' => null,
+                'status' => $status,
+                'activations_count' => $activationsCount,
+                'max_activations' => $maxActivations,
+                'expires_at' => $expiresAt ? $expiresAt->format('Y-m-d H:i:s') : null,
+            ],
+            ['%s', '%d', '%d', '%d', '%s', '%d', '%s', '%d', '%d', '%s']
+        );
+
+        return $result !== false;
+    }
+
+    /**
+     * Export all licenses to array format suitable for CSV
+     *
+     * @return array Array of license data for CSV export
+     */
+    public function exportLicensesForCsv(): array
+    {
+        global $wpdb;
+
+        $tableName = Installer::getLicensesTable();
+        $rows = $wpdb->get_results(
+            "SELECT * FROM {$tableName} ORDER BY created_at DESC",
+            ARRAY_A
+        );
+
+        $exportData = [];
+        foreach ($rows ?: [] as $row) {
+            $product = wc_get_product((int) $row['product_id']);
+            $customer = get_userdata((int) $row['customer_id']);
+            $order = wc_get_order((int) $row['order_id']);
+
+            $exportData[] = [
+                'ID' => $row['id'],
+                'License Key' => $row['license_key'],
+                'Product' => $product ? $product->get_name() : 'Unknown',
+                'Product ID' => $row['product_id'],
+                'Order ID' => $row['order_id'],
+                'Order Number' => $order ? $order->get_order_number() : '',
+                'Customer' => $customer ? $customer->display_name : 'Guest',
+                'Customer Email' => $customer ? $customer->user_email : '',
+                'Customer ID' => $row['customer_id'],
+                'Domain' => $row['domain'],
+                'Status' => ucfirst($row['status']),
+                'Activations' => $row['activations_count'],
+                'Max Activations' => $row['max_activations'],
+                'Expires At' => $row['expires_at'] ?: 'Lifetime',
+                'Created At' => $row['created_at'],
+                'Updated At' => $row['updated_at'],
+            ];
+        }
+
+        return $exportData;
+    }
 }

src/Plugin.php

@@ -10,6 +10,7 @@ declare(strict_types=1);
 namespace Jeremias\WcLicensedProduct;
 
 use Jeremias\WcLicensedProduct\Admin\AdminController;
+use Jeremias\WcLicensedProduct\Admin\SettingsController;
 use Jeremias\WcLicensedProduct\Admin\VersionAdminController;
 use Jeremias\WcLicensedProduct\Api\RestApiController;
 use Jeremias\WcLicensedProduct\Checkout\CheckoutController;
@@ -117,6 +118,7 @@ final class Plugin
         if (is_admin()) {
             new AdminController($this->twig, $this->licenseManager);
             new VersionAdminController($this->versionManager);
+            new SettingsController();
         }
     }
 

src/Product/LicensedProduct.php

@@ -9,6 +9,7 @@ declare(strict_types=1);
 
 namespace Jeremias\WcLicensedProduct\Product;
 
+use Jeremias\WcLicensedProduct\Admin\SettingsController;
 use WC_Product;
 
 /**
@@ -55,28 +56,68 @@ class LicensedProduct extends WC_Product
 
     /**
      * Get max activations for this product
+     * Falls back to default settings if not set on product
      */
     public function get_max_activations(): int
     {
         $value = $this->get_meta('_licensed_max_activations', true);
-        return $value ? (int) $value : 1;
+        if ($value !== '' && $value !== null) {
+            return max(1, (int) $value);
+        }
+        return SettingsController::getDefaultMaxActivations();
+    }
+
+    /**
+     * Check if product has custom max activations set
+     */
+    public function has_custom_max_activations(): bool
+    {
+        $value = $this->get_meta('_licensed_max_activations', true);
+        return $value !== '' && $value !== null;
     }
 
     /**
      * Get validity days
+     * Falls back to default settings if not set on product
      */
     public function get_validity_days(): ?int
     {
         $value = $this->get_meta('_licensed_validity_days', true);
-        return $value !== '' ? (int) $value : null;
+        if ($value !== '' && $value !== null) {
+            return (int) $value > 0 ? (int) $value : null;
+        }
+        return SettingsController::getDefaultValidityDays();
+    }
+
+    /**
+     * Check if product has custom validity days set
+     */
+    public function has_custom_validity_days(): bool
+    {
+        $value = $this->get_meta('_licensed_validity_days', true);
+        return $value !== '' && $value !== null;
     }
 
     /**
      * Check if license should be bound to major version
+     * Falls back to default settings if not set on product
      */
     public function is_bound_to_version(): bool
     {
-        return $this->get_meta('_licensed_bind_to_version', true) === 'yes';
+        $value = $this->get_meta('_licensed_bind_to_version', true);
+        if ($value !== '' && $value !== null) {
+            return $value === 'yes';
+        }
+        return SettingsController::getDefaultBindToVersion();
+    }
+
+    /**
+     * Check if product has custom bind to version setting
+     */
+    public function has_custom_bind_to_version(): bool
+    {
+        $value = $this->get_meta('_licensed_bind_to_version', true);
+        return $value !== '' && $value !== null;
     }
 
     /**

src/Product/LicensedProductType.php

@@ -9,6 +9,8 @@ declare(strict_types=1);
 
 namespace Jeremias\WcLicensedProduct\Product;
 
+use Jeremias\WcLicensedProduct\Admin\SettingsController;
+
 /**
  * Registers and handles the Licensed product type for WooCommerce
  */
@@ -85,39 +87,82 @@ final class LicensedProductType
     public function addProductDataPanel(): void
     {
         global $post;
+
+        // Get current product values
+        $currentMaxActivations = get_post_meta($post->ID, '_licensed_max_activations', true);
+        $currentValidityDays = get_post_meta($post->ID, '_licensed_validity_days', true);
+        $currentBindToVersion = get_post_meta($post->ID, '_licensed_bind_to_version', true);
+
+        // Get default values
+        $defaultMaxActivations = SettingsController::getDefaultMaxActivations();
+        $defaultValidityDays = SettingsController::getDefaultValidityDays();
+        $defaultBindToVersion = SettingsController::getDefaultBindToVersion();
+
+        // Format default validity for display
+        $defaultValidityDisplay = $defaultValidityDays !== null
+            ? sprintf(__('%d days', 'wc-licensed-product'), $defaultValidityDays)
+            : __('Lifetime', 'wc-licensed-product');
+
         ?>
         <div id="licensed_product_data" class="panel woocommerce_options_panel hidden">
             <div class="options_group">
+                <p class="form-field">
+                    <em><?php
+                        printf(
+                            /* translators: %s: URL to settings page */
+                            esc_html__('Leave fields empty to use default settings from %s.', 'wc-licensed-product'),
+                            '<a href="' . esc_url(admin_url('admin.php?page=wc-settings&tab=licensed_product')) . '">' .
+                            esc_html__('WooCommerce > Settings > Licensed Products', 'wc-licensed-product') . '</a>'
+                        );
+                    ?></em>
+                </p>
                 <?php
                 woocommerce_wp_text_input([
                     'id' => '_licensed_max_activations',
                     'label' => __('Max Activations', 'wc-licensed-product'),
-                    'description' => __('Maximum number of domain activations per license. Default: 1', 'wc-licensed-product'),
+                    'description' => sprintf(
+                        /* translators: %d: default max activations value */
+                        __('Maximum number of domain activations per license. Default: %d', 'wc-licensed-product'),
+                        $defaultMaxActivations
+                    ),
                     'desc_tip' => true,
                     'type' => 'number',
                     'custom_attributes' => [
                         'min' => '1',
                         'step' => '1',
                     ],
-                    'value' => get_post_meta($post->ID, '_licensed_max_activations', true) ?: '1',
+                    'placeholder' => (string) $defaultMaxActivations,
+                    'value' => $currentMaxActivations,
                 ]);
 
                 woocommerce_wp_text_input([
                     'id' => '_licensed_validity_days',
                     'label' => __('License Validity (Days)', 'wc-licensed-product'),
-                    'description' => __('Number of days the license is valid. Leave empty for lifetime license.', 'wc-licensed-product'),
+                    'description' => sprintf(
+                        /* translators: %s: default validity value */
+                        __('Number of days the license is valid. Leave empty for default (%s).', 'wc-licensed-product'),
+                        $defaultValidityDisplay
+                    ),
                     'desc_tip' => true,
                     'type' => 'number',
                     'custom_attributes' => [
                         'min' => '0',
                         'step' => '1',
                     ],
+                    'placeholder' => $defaultValidityDays !== null ? (string) $defaultValidityDays : __('Lifetime', 'wc-licensed-product'),
+                    'value' => $currentValidityDays,
                 ]);
 
                 woocommerce_wp_checkbox([
                     'id' => '_licensed_bind_to_version',
                     'label' => __('Bind to Major Version', 'wc-licensed-product'),
-                    'description' => __('If enabled, licenses are bound to the major version at purchase time.', 'wc-licensed-product'),
+                    'description' => sprintf(
+                        /* translators: %s: default bind to version value (Yes/No) */
+                        __('If enabled, licenses are bound to the major version at purchase time. Default: %s', 'wc-licensed-product'),
+                        $defaultBindToVersion ? __('Yes', 'wc-licensed-product') : __('No', 'wc-licensed-product')
+                    ),
+                    'value' => $currentBindToVersion ?: ($defaultBindToVersion ? 'yes' : 'no'),
+                    'cbvalue' => 'yes',
                 ]);
 
                 woocommerce_wp_text_input([
@@ -160,19 +205,26 @@ final class LicensedProductType
     public function saveProductMeta(int $postId): void
     {
         // Verify nonce is handled by WooCommerce
-        $maxActivations = isset($_POST['_licensed_max_activations'])
+        // Allow empty values to fall back to defaults
+        // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Nonce is verified by WooCommerce
+        $maxActivations = isset($_POST['_licensed_max_activations']) && $_POST['_licensed_max_activations'] !== ''
             ? absint($_POST['_licensed_max_activations'])
-            : 1;
+            : '';
         update_post_meta($postId, '_licensed_max_activations', $maxActivations);
 
+        // phpcs:ignore WordPress.Security.NonceVerification.Missing
         $validityDays = isset($_POST['_licensed_validity_days']) && $_POST['_licensed_validity_days'] !== ''
             ? absint($_POST['_licensed_validity_days'])
             : '';
         update_post_meta($postId, '_licensed_validity_days', $validityDays);
 
+        // For checkbox, we need to distinguish between "not set" and "explicitly unchecked"
+        // If the hidden field is present, the form was submitted and we save the actual value
+        // phpcs:ignore WordPress.Security.NonceVerification.Missing
         $bindToVersion = isset($_POST['_licensed_bind_to_version']) ? 'yes' : 'no';
         update_post_meta($postId, '_licensed_bind_to_version', $bindToVersion);
 
+        // phpcs:ignore WordPress.Security.NonceVerification.Missing
         $currentVersion = isset($_POST['_licensed_current_version'])
             ? sanitize_text_field($_POST['_licensed_current_version'])
             : '';

templates/admin/dashboard.html.twig

@@ -0,0 +1,176 @@
+<div class="wrap wclp-dashboard">
+    <h1>{{ __('License Dashboard') }}</h1>
+
+    <div class="wclp-dashboard-stats">
+        <!-- Overview Cards -->
+        <div class="wclp-stat-cards">
+            <div class="wclp-stat-card wclp-stat-total">
+                <div class="wclp-stat-icon"><span class="dashicons dashicons-admin-network"></span></div>
+                <div class="wclp-stat-content">
+                    <span class="wclp-stat-number">{{ stats.total }}</span>
+                    <span class="wclp-stat-label">{{ __('Total Licenses') }}</span>
+                </div>
+            </div>
+            <div class="wclp-stat-card wclp-stat-active">
+                <div class="wclp-stat-icon"><span class="dashicons dashicons-yes-alt"></span></div>
+                <div class="wclp-stat-content">
+                    <span class="wclp-stat-number">{{ stats.by_status.active }}</span>
+                    <span class="wclp-stat-label">{{ __('Active') }}</span>
+                </div>
+            </div>
+            <div class="wclp-stat-card wclp-stat-inactive">
+                <div class="wclp-stat-icon"><span class="dashicons dashicons-marker"></span></div>
+                <div class="wclp-stat-content">
+                    <span class="wclp-stat-number">{{ stats.by_status.inactive }}</span>
+                    <span class="wclp-stat-label">{{ __('Inactive') }}</span>
+                </div>
+            </div>
+            <div class="wclp-stat-card wclp-stat-expired">
+                <div class="wclp-stat-icon"><span class="dashicons dashicons-calendar-alt"></span></div>
+                <div class="wclp-stat-content">
+                    <span class="wclp-stat-number">{{ stats.by_status.expired }}</span>
+                    <span class="wclp-stat-label">{{ __('Expired') }}</span>
+                </div>
+            </div>
+            <div class="wclp-stat-card wclp-stat-revoked">
+                <div class="wclp-stat-icon"><span class="dashicons dashicons-dismiss"></span></div>
+                <div class="wclp-stat-content">
+                    <span class="wclp-stat-number">{{ stats.by_status.revoked }}</span>
+                    <span class="wclp-stat-label">{{ __('Revoked') }}</span>
+                </div>
+            </div>
+        </div>
+
+        <!-- Alert: Expiring Soon -->
+        {% if stats.expiring_soon > 0 %}
+        <div class="notice notice-warning">
+            <p>
+                <span class="dashicons dashicons-warning"></span>
+                <strong>{{ __('Attention:') }}</strong>
+                {{ stats.expiring_soon }} {{ stats.expiring_soon == 1 ? __('license is') : __('licenses are') }}
+                {{ __('expiring within the next 30 days.') }}
+                <a href="{{ admin_url }}?page=wc-licenses">{{ __('View Licenses') }}</a>
+            </p>
+        </div>
+        {% endif %}
+
+        <!-- Secondary Stats -->
+        <div class="wclp-stat-row">
+            <div class="wclp-stat-box">
+                <h3>{{ __('License Types') }}</h3>
+                <table class="widefat striped">
+                    <tbody>
+                        <tr>
+                            <td>{{ __('Lifetime Licenses') }}</td>
+                            <td class="wclp-stat-value">{{ stats.lifetime }}</td>
+                        </tr>
+                        <tr>
+                            <td>{{ __('Time-limited Licenses') }}</td>
+                            <td class="wclp-stat-value">{{ stats.expiring }}</td>
+                        </tr>
+                        <tr>
+                            <td>{{ __('Expiring Soon (30 days)') }}</td>
+                            <td class="wclp-stat-value {% if stats.expiring_soon > 0 %}wclp-warning{% endif %}">
+                                {{ stats.expiring_soon }}
+                            </td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+
+            <div class="wclp-stat-box">
+                <h3>{{ __('Top Products by Licenses') }}</h3>
+                {% if stats.by_product is empty %}
+                    <p class="description">{{ __('No license data available yet.') }}</p>
+                {% else %}
+                    <table class="widefat striped">
+                        <thead>
+                            <tr>
+                                <th>{{ __('Product') }}</th>
+                                <th class="wclp-stat-value">{{ __('Licenses') }}</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            {% for product in stats.by_product %}
+                            <tr>
+                                <td>{{ esc_html(product.product_name) }}</td>
+                                <td class="wclp-stat-value">{{ product.count }}</td>
+                            </tr>
+                            {% endfor %}
+                        </tbody>
+                    </table>
+                {% endif %}
+            </div>
+
+            <div class="wclp-stat-box">
+                <h3>{{ __('Top Domains') }}</h3>
+                {% if stats.top_domains is empty %}
+                    <p class="description">{{ __('No license data available yet.') }}</p>
+                {% else %}
+                    <table class="widefat striped">
+                        <thead>
+                            <tr>
+                                <th>{{ __('Domain') }}</th>
+                                <th class="wclp-stat-value">{{ __('Licenses') }}</th>
+                            </tr>
+                        </thead>
+                        <tbody>
+                            {% for domain in stats.top_domains %}
+                            <tr>
+                                <td><code>{{ esc_html(domain.domain) }}</code></td>
+                                <td class="wclp-stat-value">{{ domain.count }}</td>
+                            </tr>
+                            {% endfor %}
+                        </tbody>
+                    </table>
+                {% endif %}
+            </div>
+        </div>
+
+        <!-- Monthly Chart -->
+        <div class="wclp-stat-box wclp-stat-full">
+            <h3>{{ __('Licenses Created (Last 12 Months)') }}</h3>
+            {% if stats.monthly is empty %}
+                <p class="description">{{ __('No license data available yet.') }}</p>
+            {% else %}
+                <div class="wclp-chart-container">
+                    <div class="wclp-bar-chart" id="wclp-monthly-chart">
+                        {% set max_value = 1 %}
+                        {% for count in stats.monthly %}
+                            {% if count > max_value %}
+                                {% set max_value = count %}
+                            {% endif %}
+                        {% endfor %}
+                        {% for month, count in stats.monthly %}
+                            <div class="wclp-bar-wrapper">
+                                <div class="wclp-bar" style="height: {{ (count / max_value * 100)|round }}%;" title="{{ count }} {{ __('licenses') }}">
+                                    <span class="wclp-bar-value">{{ count }}</span>
+                                </div>
+                                <span class="wclp-bar-label">{{ month|date('M Y') }}</span>
+                            </div>
+                        {% endfor %}
+                    </div>
+                </div>
+            {% endif %}
+        </div>
+    </div>
+
+    <!-- Quick Actions -->
+    <div class="wclp-dashboard-actions">
+        <h2>{{ __('Quick Actions') }}</h2>
+        <div class="wclp-action-buttons">
+            <a href="{{ admin_url }}?page=wc-licenses" class="button button-primary">
+                <span class="dashicons dashicons-admin-network"></span>
+                {{ __('Manage Licenses') }}
+            </a>
+            <a href="{{ admin_url }}?page=wc-licenses&action=export_csv" class="button">
+                <span class="dashicons dashicons-download"></span>
+                {{ __('Export to CSV') }}
+            </a>
+            <a href="{{ admin_url }}?page=wc-settings&tab=licensed_product" class="button">
+                <span class="dashicons dashicons-admin-generic"></span>
+                {{ __('Settings') }}
+            </a>
+        </div>
+    </div>
+</div>

templates/admin/licenses.html.twig

@@ -1,5 +1,14 @@
 <div class="wrap">
-    <h1>{{ __('Licenses') }}</h1>
+    <h1 class="wp-heading-inline">{{ __('Licenses') }}</h1>
+    <a href="{{ admin_url }}?action=export_csv" class="page-title-action">
+        <span class="dashicons dashicons-download" style="vertical-align: middle;"></span>
+        {{ __('Export CSV') }}
+    </a>
+    <a href="{{ admin_url }}?action=import_csv" class="page-title-action">
+        <span class="dashicons dashicons-upload" style="vertical-align: middle;"></span>
+        {{ __('Import CSV') }}
+    </a>
+    <hr class="wp-header-end">
 
     {% for notice in notices %}
         <div class="notice notice-{{ notice.type }} is-dismissible">
@@ -7,13 +16,80 @@
         </div>
     {% endfor %}
 
-    <p class="description">
+    <!-- Search and Filter Form -->
-        {{ __('Total licenses:') }} <strong>{{ total_licenses }}</strong>
+    <form method="get" action="" class="wclp-filter-form">
+        <input type="hidden" name="page" value="wc-licenses">
+
+        <p class="search-box">
+            <label class="screen-reader-text" for="license-search-input">{{ __('Search Licenses') }}</label>
+            <input type="search" id="license-search-input" name="s" value="{{ filters.search|default('') }}"
+                   placeholder="{{ __('Search license key or domain...') }}">
+            <input type="submit" id="search-submit" class="button" value="{{ __('Search') }}">
         </p>
 
-    <table class="wp-list-table widefat fixed striped">
+        <div class="tablenav top">
+            <div class="alignleft actions">
+                <select name="status">
+                    <option value="all">{{ __('All Statuses') }}</option>
+                    <option value="active" {{ filters.status|default('') == 'active' ? 'selected' : '' }}>{{ __('Active') }}</option>
+                    <option value="inactive" {{ filters.status|default('') == 'inactive' ? 'selected' : '' }}>{{ __('Inactive') }}</option>
+                    <option value="expired" {{ filters.status|default('') == 'expired' ? 'selected' : '' }}>{{ __('Expired') }}</option>
+                    <option value="revoked" {{ filters.status|default('') == 'revoked' ? 'selected' : '' }}>{{ __('Revoked') }}</option>
+                </select>
+
+                <select name="product_id">
+                    <option value="">{{ __('All Products') }}</option>
+                    {% for id, name in products %}
+                        <option value="{{ id }}" {{ filters.product_id|default('') == id ? 'selected' : '' }}>{{ esc_html(name) }}</option>
+                    {% endfor %}
+                </select>
+
+                <input type="submit" class="button" value="{{ __('Filter') }}">
+
+                {% if filters is not empty %}
+                    <a href="{{ admin_url }}" class="button">{{ __('Clear') }}</a>
+                {% endif %}
+            </div>
+
+            <div class="tablenav-pages">
+                <span class="displaying-num">{{ total_licenses }} {{ total_licenses == 1 ? __('item') : __('items') }}</span>
+            </div>
+        </div>
+    </form>
+
+    <p class="description">
+        {{ __('Showing') }} {{ total_licenses }} {{ total_licenses == 1 ? __('license') : __('licenses') }}
+        {% if filters is not empty %}
+            ({{ __('filtered') }})
+        {% endif %}
+        | <a href="{{ constant('admin_url')('admin.php?page=wc-reports&tab=licenses') }}">{{ __('View Dashboard') }}</a>
+    </p>
+
+    <form method="post" action="{{ admin_url }}" id="licenses-bulk-form">
+        {{ wp_nonce_field('bulk_license_action', '_wpnonce', true, false)|raw }}
+
+        <div class="tablenav top">
+            <div class="alignleft actions bulkactions">
+                <select name="bulk_action" id="bulk-action-selector">
+                    <option value="">{{ __('Bulk Actions') }}</option>
+                    <option value="activate">{{ __('Activate') }}</option>
+                    <option value="deactivate">{{ __('Deactivate') }}</option>
+                    <option value="revoke">{{ __('Revoke') }}</option>
+                    <option value="extend_30">{{ __('Extend 30 days') }}</option>
+                    <option value="extend_90">{{ __('Extend 90 days') }}</option>
+                    <option value="extend_365">{{ __('Extend 1 year') }}</option>
+                    <option value="delete">{{ __('Delete') }}</option>
+                </select>
+                <input type="submit" class="button action" value="{{ __('Apply') }}">
+            </div>
+        </div>
+
+        <table class="wp-list-table widefat fixed striped licenses-table">
             <thead>
                 <tr>
+                    <td class="manage-column column-cb check-column">
+                        <input type="checkbox" id="cb-select-all-1">
+                    </td>
                     <th>{{ __('License Key') }}</th>
                     <th>{{ __('Product') }}</th>
                     <th>{{ __('Customer') }}</th>
@@ -26,11 +102,14 @@
             <tbody>
                 {% if licenses is empty %}
                     <tr>
-                    <td colspan="7">{{ __('No licenses found.') }}</td>
+                        <td colspan="8">{{ __('No licenses found.') }}</td>
                     </tr>
                 {% else %}
                     {% for item in licenses %}
                         <tr>
+                            <th scope="row" class="check-column">
+                                <input type="checkbox" name="license_ids[]" value="{{ item.license.id }}">
+                            </th>
                             <td><code>{{ item.license.licenseKey }}</code></td>
                             <td>
                                 {% if item.product_edit_url %}
@@ -55,35 +134,80 @@
                                 {% if item.license.expiresAt %}
                                     {{ item.license.expiresAt|date('Y-m-d') }}
                                 {% else %}
-                                {{ __('Never') }}
+                                    <span class="license-lifetime">{{ __('Lifetime') }}</span>
                                 {% endif %}
                             </td>
-                        <td>
+                            <td class="license-actions">
+                                <div class="row-actions">
                                     {% if item.license.status != 'revoked' %}
-                                <a href="{{ admin_url ~ '?page=wc-licenses&action=revoke&license_id=' ~ item.license.id ~ '&_wpnonce=' }}"
+                                        <span class="transfer">
-                                   class="button button-small"
+                                            <a href="#" class="wclp-transfer-link"
-                                   onclick="return confirm('{{ __('Are you sure?') }}')">
+                                               data-license-id="{{ item.license.id }}"
-                                    {{ __('Revoke') }}
+                                               data-current-domain="{{ esc_attr(item.license.domain) }}"
-                                </a>
+                                               title="{{ __('Transfer to new domain') }}">{{ __('Transfer') }}</a> |
+                                        </span>
+                                        <span class="extend">
+                                            <a href="{{ extend_url(item.license.id, 30) }}" title="{{ __('Extend by 30 days') }}">+30d</a> |
+                                        </span>
+                                        <span class="lifetime">
+                                            <a href="{{ lifetime_url(item.license.id) }}" title="{{ __('Set to lifetime') }}">∞</a> |
+                                        </span>
+                                        <span class="revoke">
+                                            <a href="{{ revoke_url(item.license.id) }}"
+                                               onclick="return confirm('{{ __('Are you sure?') }}')">{{ __('Revoke') }}</a> |
+                                        </span>
                                     {% endif %}
-                            <a href="{{ admin_url ~ '?page=wc-licenses&action=delete&license_id=' ~ item.license.id ~ '&_wpnonce=' }}"
+                                    <span class="delete">
-                               class="button button-small button-link-delete"
+                                        <a href="{{ delete_url(item.license.id) }}"
-                               onclick="return confirm('{{ __('Are you sure you want to delete this license?') }}')">
+                                           class="submitdelete"
-                                {{ __('Delete') }}
+                                           onclick="return confirm('{{ __('Are you sure you want to delete this license?') }}')">{{ __('Delete') }}</a>
-                            </a>
+                                    </span>
+                                </div>
                             </td>
                         </tr>
                     {% endfor %}
                 {% endif %}
             </tbody>
+            <tfoot>
+                <tr>
+                    <td class="manage-column column-cb check-column">
+                        <input type="checkbox" id="cb-select-all-2">
+                    </td>
+                    <th>{{ __('License Key') }}</th>
+                    <th>{{ __('Product') }}</th>
+                    <th>{{ __('Customer') }}</th>
+                    <th>{{ __('Domain') }}</th>
+                    <th>{{ __('Status') }}</th>
+                    <th>{{ __('Expires') }}</th>
+                    <th>{{ __('Actions') }}</th>
+                </tr>
+            </tfoot>
         </table>
 
-    {% if total_pages > 1 %}
         <div class="tablenav bottom">
+            <div class="alignleft actions bulkactions">
+                <select name="bulk_action_2" id="bulk-action-selector-bottom">
+                    <option value="">{{ __('Bulk Actions') }}</option>
+                    <option value="activate">{{ __('Activate') }}</option>
+                    <option value="deactivate">{{ __('Deactivate') }}</option>
+                    <option value="revoke">{{ __('Revoke') }}</option>
+                    <option value="extend_30">{{ __('Extend 30 days') }}</option>
+                    <option value="extend_90">{{ __('Extend 90 days') }}</option>
+                    <option value="extend_365">{{ __('Extend 1 year') }}</option>
+                    <option value="delete">{{ __('Delete') }}</option>
+                </select>
+                <input type="submit" class="button action" value="{{ __('Apply') }}">
+            </div>
+            {% if total_pages > 1 %}
+                {% set filter_params = '' %}
+                {% if filters.search is defined and filters.search %}{% set filter_params = filter_params ~ '&s=' ~ filters.search %}{% endif %}
+                {% if filters.status is defined and filters.status %}{% set filter_params = filter_params ~ '&status=' ~ filters.status %}{% endif %}
+                {% if filters.product_id is defined and filters.product_id %}{% set filter_params = filter_params ~ '&product_id=' ~ filters.product_id %}{% endif %}
+
                 <div class="tablenav-pages">
                     <span class="pagination-links">
                         {% if current_page > 1 %}
-                        <a class="prev-page button" href="{{ admin_url ~ '&paged=' ~ (current_page - 1) }}">
+                            <a class="prev-page button" href="{{ admin_url ~ '&paged=' ~ (current_page - 1) ~ filter_params }}">
                                 <span aria-hidden="true">‹</span>
                             </a>
                         {% endif %}
@@ -91,12 +215,93 @@
                             {{ current_page }} {{ __('of') }} {{ total_pages }}
                         </span>
                         {% if current_page < total_pages %}
-                        <a class="next-page button" href="{{ admin_url ~ '&paged=' ~ (current_page + 1) }}">
+                            <a class="next-page button" href="{{ admin_url ~ '&paged=' ~ (current_page + 1) ~ filter_params }}">
                                 <span aria-hidden="true">›</span>
                             </a>
                         {% endif %}
                     </span>
                 </div>
-        </div>
             {% endif %}
+        </div>
+    </form>
 </div>
+
+<!-- Transfer Modal -->
+<div id="wclp-transfer-modal" class="wclp-modal" style="display:none;">
+    <div class="wclp-modal-content">
+        <span class="wclp-modal-close">&times;</span>
+        <h2>{{ __('Transfer License to New Domain') }}</h2>
+        <form method="post" action="{{ admin_url }}">
+            <input type="hidden" name="action" value="transfer_license">
+            <input type="hidden" name="_wpnonce" value="{{ transfer_nonce() }}">
+            <input type="hidden" name="license_id" id="transfer-license-id" value="">
+            <table class="form-table">
+                <tr>
+                    <th scope="row"><label>{{ __('Current Domain') }}</label></th>
+                    <td><code id="transfer-current-domain"></code></td>
+                </tr>
+                <tr>
+                    <th scope="row"><label for="new_domain">{{ __('New Domain') }}</label></th>
+                    <td>
+                        <input type="text" name="new_domain" id="transfer-new-domain" class="regular-text"
+                               placeholder="example.com" required>
+                        <p class="description">{{ __('Enter the new domain without http:// or www.') }}</p>
+                    </td>
+                </tr>
+            </table>
+            <p class="submit">
+                <button type="submit" class="button button-primary">{{ __('Transfer License') }}</button>
+                <button type="button" class="button wclp-modal-cancel">{{ __('Cancel') }}</button>
+            </p>
+        </form>
+    </div>
+</div>
+
+<script>
+(function($) {
+    // Select all checkboxes
+    $('#cb-select-all-1, #cb-select-all-2').on('change', function() {
+        $('input[name="license_ids[]"]').prop('checked', this.checked);
+        $('#cb-select-all-1, #cb-select-all-2').prop('checked', this.checked);
+    });
+
+    // Sync bulk action selects
+    $('#bulk-action-selector, #bulk-action-selector-bottom').on('change', function() {
+        var value = $(this).val();
+        $('#bulk-action-selector, #bulk-action-selector-bottom').val(value);
+    });
+
+    // Use bottom select value if top is empty
+    $('form').on('submit', function() {
+        var topAction = $('#bulk-action-selector').val();
+        var bottomAction = $('#bulk-action-selector-bottom').val();
+        if (!topAction && bottomAction) {
+            $('#bulk-action-selector').val(bottomAction);
+        }
+    });
+
+    // Transfer modal
+    var $modal = $('#wclp-transfer-modal');
+
+    $('.wclp-transfer-link').on('click', function(e) {
+        e.preventDefault();
+        var licenseId = $(this).data('license-id');
+        var currentDomain = $(this).data('current-domain');
+
+        $('#transfer-license-id').val(licenseId);
+        $('#transfer-current-domain').text(currentDomain);
+        $('#transfer-new-domain').val('');
+        $modal.show();
+    });
+
+    $('.wclp-modal-close, .wclp-modal-cancel').on('click', function() {
+        $modal.hide();
+    });
+
+    $(window).on('click', function(e) {
+        if ($(e.target).is($modal)) {
+            $modal.hide();
+        }
+    });
+})(jQuery);
+</script>

templates/frontend/licenses.html.twig

@@ -29,7 +29,19 @@
                     </div>
 
                     <div class="license-info-row">
-                        <span><strong>{{ __('Domain:') }}</strong> {{ esc_html(item.license.domain) }}</span>
+                        <span class="license-domain-display" data-license-id="{{ item.license.id }}">
+                            <strong>{{ __('Domain:') }}</strong>
+                            <span class="domain-value">{{ esc_html(item.license.domain) }}</span>
+                            {% if item.license.status == 'active' or item.license.status == 'inactive' %}
+                                <button type="button" class="wclp-transfer-btn"
+                                        data-license-id="{{ item.license.id }}"
+                                        data-current-domain="{{ esc_attr(item.license.domain) }}"
+                                        title="{{ __('Transfer to new domain') }}">
+                                    <span class="dashicons dashicons-randomize"></span>
+                                    {{ __('Transfer') }}
+                                </button>
+                            {% endif %}
+                        </span>
                         <span><strong>{{ __('Expires:') }}</strong>
                             {% if item.license.expiresAt %}
                                 {{ item.license.expiresAt|date('Y-m-d') }}
@@ -60,4 +72,38 @@
             </div>
         {% endfor %}
     </div>
+
+    <!-- Transfer Modal -->
+    <div id="wclp-transfer-modal" class="wclp-modal" style="display:none;">
+        <div class="wclp-modal-overlay"></div>
+        <div class="wclp-modal-content">
+            <button type="button" class="wclp-modal-close" aria-label="{{ __('Close') }}">&times;</button>
+            <h3>{{ __('Transfer License to New Domain') }}</h3>
+            <form id="wclp-transfer-form">
+                <input type="hidden" name="license_id" id="transfer-license-id" value="">
+
+                <div class="wclp-form-row">
+                    <label>{{ __('Current Domain') }}</label>
+                    <p class="wclp-current-domain"><code id="transfer-current-domain"></code></p>
+                </div>
+
+                <div class="wclp-form-row">
+                    <label for="transfer-new-domain">{{ __('New Domain') }}</label>
+                    <input type="text" name="new_domain" id="transfer-new-domain"
+                           placeholder="example.com" required
+                           pattern="[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?(\.[a-zA-Z0-9]([a-zA-Z0-9-]*[a-zA-Z0-9])?)+">
+                    <p class="wclp-field-description">{{ __('Enter the new domain without http:// or www.') }}</p>
+                </div>
+
+                <div class="wclp-form-row wclp-form-actions">
+                    <button type="submit" class="button wclp-btn-primary" id="wclp-transfer-submit">
+                        {{ __('Transfer License') }}
+                    </button>
+                    <button type="button" class="button wclp-modal-cancel">{{ __('Cancel') }}</button>
+                </div>
+
+                <div id="wclp-transfer-message" class="wclp-message" style="display:none;"></div>
+            </form>
+        </div>
+    </div>
 {% endif %}

wc-licensed-product.php

@@ -3,7 +3,7 @@
  * Plugin Name: WooCommerce Licensed Product
  * Plugin URI: https://src.bundespruefstelle.ch/magdev/wc-licensed-product
  * Description: WooCommerce plugin to sell software products using license keys with domain-based validation.
- * Version: 0.0.3
+ * Version: 0.0.7
  * Author: Marco Graetsch
  * Author URI: https://src.bundespruefstelle.ch/magdev
  * License: GPL-2.0-or-later
@@ -28,7 +28,7 @@ if (!defined('ABSPATH')) {
 }
 
 // Plugin constants
-define('WC_LICENSED_PRODUCT_VERSION', '0.0.3');
+define('WC_LICENSED_PRODUCT_VERSION', '0.0.7');
 define('WC_LICENSED_PRODUCT_PLUGIN_FILE', __FILE__);
 define('WC_LICENSED_PRODUCT_PLUGIN_DIR', plugin_dir_path(__FILE__));
 define('WC_LICENSED_PRODUCT_PLUGIN_URL', plugin_dir_url(__FILE__));