admin_url('admin-ajax.php'),
'nonce' => wp_create_nonce('wc_tpp_variation_pricing'),
'currency_symbol' => esc_js(get_woocommerce_currency_symbol()),
'currency_position' => esc_js(get_option('woocommerce_currency_pos', 'left')),
'price_decimals' => absint(wc_get_price_decimals()),
'price_decimal_separator' => esc_js(wc_get_price_decimal_separator()),
'price_thousand_separator' => esc_js(wc_get_price_thousand_separator())
));
}
}
public function display_pricing_table_before() {
if (get_option('wc_tpp_display_position') === 'before_add_to_cart') {
$this->display_pricing_table();
}
}
public function display_pricing_table_after() {
if (get_option('wc_tpp_display_position') === 'after_add_to_cart') {
$this->display_pricing_table();
}
}
public function display_pricing_table_after_price() {
if (get_option('wc_tpp_display_position') === 'after_price') {
$this->display_pricing_table();
}
}
public function maybe_hide_quantity_input() {
global $product;
if (!$product || !is_a($product, 'WC_Product')) {
return;
}
// For variable products, quantity hiding is handled per-variation via JS
if ($product->is_type('variable')) {
return;
}
$product_id = $product->get_id();
$global_restrict = get_option('wc_tpp_restrict_package_quantities', 'no') === 'yes';
$product_restrict = get_post_meta($product_id, '_wc_tpp_restrict_to_packages', true) === 'yes';
$packages = get_post_meta($product_id, '_wc_tpp_packages', true);
// Hide quantity input if restriction is enabled and packages exist
if (($global_restrict || $product_restrict) && !empty($packages)) {
echo '';
}
}
public function display_pricing_table() {
global $product;
if (!$product || !is_a($product, 'WC_Product') || get_option('wc_tpp_display_table') !== 'yes') {
return;
}
// For variable products, show a placeholder that will be populated by JS when variation is selected
if ($product->is_type('variable')) {
echo '';
return;
}
// For simple products, display pricing table directly
$product_id = $product->get_id();
$tiers = get_post_meta($product_id, '_wc_tpp_tiers', true);
$packages = get_post_meta($product_id, '_wc_tpp_packages', true);
$global_restrict = get_option('wc_tpp_restrict_package_quantities', 'no') === 'yes';
$product_restrict = get_post_meta($product_id, '_wc_tpp_restrict_to_packages', true) === 'yes';
if (empty($tiers) && empty($packages)) {
return;
}
WC_TPP_Template_Loader::get_instance()->display('frontend/pricing-table.twig', array(
'product' => $product,
'tiers' => $tiers,
'packages' => $packages,
'restrict_to_packages' => $global_restrict || $product_restrict
));
}
/**
* Get tier price for a product or variation
*
* @param int $product_id Product ID (parent for simple, parent for variable)
* @param int $quantity Quantity
* @param int $variation_id Variation ID (0 for simple products)
* @return float|null Tier price or null if not applicable
*/
public static function get_tier_price($product_id, $quantity, $variation_id = 0) {
$effective_id = $variation_id > 0 ? $variation_id : $product_id;
$tiers = get_post_meta($effective_id, '_wc_tpp_tiers', true);
if (empty($tiers) || !is_array($tiers)) {
return null;
}
$applicable_price = null;
foreach ($tiers as $tier) {
if ($quantity >= $tier['min_qty']) {
$applicable_price = $tier['price'];
}
}
return $applicable_price;
}
/**
* Get package price for a product or variation
*
* @param int $product_id Product ID (parent for simple, parent for variable)
* @param int $quantity Quantity
* @param int $variation_id Variation ID (0 for simple products)
* @return float|null Package price or null if not applicable
*/
public static function get_package_price($product_id, $quantity, $variation_id = 0) {
$effective_id = $variation_id > 0 ? $variation_id : $product_id;
$packages = get_post_meta($effective_id, '_wc_tpp_packages', true);
if (empty($packages) || !is_array($packages)) {
return null;
}
foreach ($packages as $package) {
if ($quantity == $package['qty']) {
return $package['price'];
}
}
return null;
}
/**
* Check if a product has quantity restrictions enabled
*
* @param int $product_id Product ID
* @return bool
*/
public static function has_quantity_restriction($product_id) {
$global_restrict = get_option('wc_tpp_restrict_package_quantities', 'no') === 'yes';
$product_restrict = get_post_meta($product_id, '_wc_tpp_restrict_to_packages', true) === 'yes';
$packages = get_post_meta($product_id, '_wc_tpp_packages', true);
return ($global_restrict || $product_restrict) && !empty($packages);
}
/**
* Modify catalog add to cart button for products with quantity restrictions
*
* @param string $html Add to cart button HTML
* @param WC_Product $product Product object
* @return string Modified HTML
*/
public function modify_catalog_add_to_cart_button($html, $product) {
if (!$product || !is_a($product, 'WC_Product')) {
return $html;
}
$product_id = $product->get_id();
// For variable products, check if ANY variation has restrictions
// For simple products, check the product itself
$has_restriction = false;
if ($product->is_type('variable')) {
// Check if any variation has package restrictions
$variations = $product->get_available_variations();
foreach ($variations as $variation_data) {
if (self::has_quantity_restriction($variation_data['variation_id'])) {
$has_restriction = true;
break;
}
}
} else {
$has_restriction = self::has_quantity_restriction($product_id);
}
if (!$has_restriction) {
return $html;
}
// Replace add to cart button with "View Options" link
$product_url = esc_url($product->get_permalink());
$button_text = esc_html__('View Options', 'wc-tier-package-prices');
// Use correct product type class
$product_type_class = $product->is_type('variable') ? 'product_type_variable' : 'product_type_simple';
$new_html = sprintf(
'%s',
$product_url,
esc_attr($product_type_class),
esc_attr(sprintf(__('View options for %s', 'wc-tier-package-prices'), $product->get_name())),
$button_text
);
return $new_html;
}
/**
* AJAX handler to get variation pricing data
*/
public function ajax_get_variation_pricing() {
// Verify nonce
check_ajax_referer('wc_tpp_variation_pricing', 'nonce');
$variation_id = isset($_POST['variation_id']) ? absint($_POST['variation_id']) : 0;
if (!$variation_id) {
wp_send_json_error(array('message' => __('Invalid variation ID', 'wc-tier-package-prices')));
}
// Get variation data
$variation = wc_get_product($variation_id);
if (!$variation || !$variation->is_type('variation')) {
wp_send_json_error(array('message' => __('Variation not found', 'wc-tier-package-prices')));
}
// Get tier and package pricing
$tiers = get_post_meta($variation_id, '_wc_tpp_tiers', true);
$packages = get_post_meta($variation_id, '_wc_tpp_packages', true);
$global_restrict = get_option('wc_tpp_restrict_package_quantities', 'no') === 'yes';
$product_restrict = get_post_meta($variation_id, '_wc_tpp_restrict_to_packages', true) === 'yes';
if (empty($tiers) && empty($packages)) {
// No pricing data for this variation
wp_send_json_success(array(
'has_pricing' => false,
'html' => ''
));
}
// Render the pricing table HTML
ob_start();
WC_TPP_Template_Loader::get_instance()->display('frontend/pricing-table.twig', array(
'product' => $variation,
'tiers' => $tiers,
'packages' => $packages,
'restrict_to_packages' => $global_restrict || $product_restrict
));
$html = ob_get_clean();
wp_send_json_success(array(
'has_pricing' => true,
'html' => $html,
'tiers' => $tiers ? $tiers : array(),
'packages' => $packages ? $packages : array(),
'restrict_to_packages' => $global_restrict || $product_restrict
));
}
}
new WC_TPP_Frontend();
}