<?php
/**
 * Artist custom post type.
 *
 * @package WP_FediStream
 */

namespace WP_FediStream\PostTypes;

// Prevent direct file access.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Artist post type class.
 *
 * Handles registration and management of artist/band profiles.
 */
class Artist extends AbstractPostType {

    /**
     * Post type key.
     *
     * @var string
     */
    protected string $post_type = 'fedistream_artist';

    /**
     * Meta key prefix.
     *
     * @var string
     */
    private const META_PREFIX = '_fedistream_artist_';

    /**
     * Register the post type.
     *
     * @return void
     */
    public function register(): void {
        $labels = array(
            'name'                  => _x( 'Artists', 'Post type general name', 'wp-fedistream' ),
            'singular_name'         => _x( 'Artist', 'Post type singular name', 'wp-fedistream' ),
            'menu_name'             => _x( 'Artists', 'Admin Menu text', 'wp-fedistream' ),
            'name_admin_bar'        => _x( 'Artist', 'Add New on Toolbar', 'wp-fedistream' ),
            'add_new'               => __( 'Add New', 'wp-fedistream' ),
            'add_new_item'          => __( 'Add New Artist', 'wp-fedistream' ),
            'new_item'              => __( 'New Artist', 'wp-fedistream' ),
            'edit_item'             => __( 'Edit Artist', 'wp-fedistream' ),
            'view_item'             => __( 'View Artist', 'wp-fedistream' ),
            'all_items'             => __( 'All Artists', 'wp-fedistream' ),
            'search_items'          => __( 'Search Artists', 'wp-fedistream' ),
            'parent_item_colon'     => __( 'Parent Artists:', 'wp-fedistream' ),
            'not_found'             => __( 'No artists found.', 'wp-fedistream' ),
            'not_found_in_trash'    => __( 'No artists found in Trash.', 'wp-fedistream' ),
            'featured_image'        => _x( 'Artist Photo', 'Overrides the "Featured Image" phrase', 'wp-fedistream' ),
            'set_featured_image'    => _x( 'Set artist photo', 'Overrides the "Set featured image" phrase', 'wp-fedistream' ),
            'remove_featured_image' => _x( 'Remove artist photo', 'Overrides the "Remove featured image" phrase', 'wp-fedistream' ),
            'use_featured_image'    => _x( 'Use as artist photo', 'Overrides the "Use as featured image" phrase', 'wp-fedistream' ),
            'archives'              => _x( 'Artist archives', 'The post type archive label', 'wp-fedistream' ),
            'insert_into_item'      => _x( 'Insert into artist', 'Overrides the "Insert into post" phrase', 'wp-fedistream' ),
            'uploaded_to_this_item' => _x( 'Uploaded to this artist', 'Overrides the "Uploaded to this post" phrase', 'wp-fedistream' ),
            'filter_items_list'     => _x( 'Filter artists list', 'Screen reader text', 'wp-fedistream' ),
            'items_list_navigation' => _x( 'Artists list navigation', 'Screen reader text', 'wp-fedistream' ),
            'items_list'            => _x( 'Artists list', 'Screen reader text', 'wp-fedistream' ),
        );

        $args = array(
            'labels'             => $labels,
            'public'             => true,
            'publicly_queryable' => true,
            'show_ui'            => true,
            'show_in_menu'       => false, // Will be added to custom menu.
            'query_var'          => true,
            'rewrite'            => array( 'slug' => 'artists' ),
            'capability_type'    => array( 'fedistream_artist', 'fedistream_artists' ),
            'map_meta_cap'       => true,
            'has_archive'        => true,
            'hierarchical'       => false,
            'menu_position'      => null,
            'menu_icon'          => 'dashicons-groups',
            'supports'           => array( 'title', 'editor', 'thumbnail', 'excerpt', 'revisions' ),
            'show_in_rest'       => true,
            'rest_base'          => 'artists',
        );

        register_post_type( $this->post_type, $args );
    }

    /**
     * Add meta boxes.
     *
     * @return void
     */
    public function add_meta_boxes(): void {
        add_meta_box(
            'fedistream_artist_info',
            __( 'Artist Information', 'wp-fedistream' ),
            array( $this, 'render_info_meta_box' ),
            $this->post_type,
            'normal',
            'high'
        );

        add_meta_box(
            'fedistream_artist_social',
            __( 'Social Links', 'wp-fedistream' ),
            array( $this, 'render_social_meta_box' ),
            $this->post_type,
            'normal',
            'default'
        );

        add_meta_box(
            'fedistream_artist_members',
            __( 'Band Members', 'wp-fedistream' ),
            array( $this, 'render_members_meta_box' ),
            $this->post_type,
            'side',
            'default'
        );
    }

    /**
     * Render artist info meta box.
     *
     * @param \WP_Post $post Post object.
     * @return void
     */
    public function render_info_meta_box( \WP_Post $post ): void {
        wp_nonce_field( 'fedistream_artist_save', 'fedistream_artist_nonce' );

        $artist_type = get_post_meta( $post->ID, self::META_PREFIX . 'type', true );
        $formed_date = get_post_meta( $post->ID, self::META_PREFIX . 'formed_date', true );
        $location    = get_post_meta( $post->ID, self::META_PREFIX . 'location', true );
        $website     = get_post_meta( $post->ID, self::META_PREFIX . 'website', true );
        ?>
        <table class="form-table">
            <tr>
                <th scope="row">
                    <label for="fedistream_artist_type"><?php esc_html_e( 'Artist Type', 'wp-fedistream' ); ?></label>
                </th>
                <td>
                    <select name="fedistream_artist_type" id="fedistream_artist_type">
                        <option value="solo" <?php selected( $artist_type, 'solo' ); ?>><?php esc_html_e( 'Solo Artist', 'wp-fedistream' ); ?></option>
                        <option value="band" <?php selected( $artist_type, 'band' ); ?>><?php esc_html_e( 'Band', 'wp-fedistream' ); ?></option>
                        <option value="duo" <?php selected( $artist_type, 'duo' ); ?>><?php esc_html_e( 'Duo', 'wp-fedistream' ); ?></option>
                        <option value="collective" <?php selected( $artist_type, 'collective' ); ?>><?php esc_html_e( 'Collective', 'wp-fedistream' ); ?></option>
                    </select>
                </td>
            </tr>
            <tr>
                <th scope="row">
                    <label for="fedistream_artist_formed_date"><?php esc_html_e( 'Formed Date', 'wp-fedistream' ); ?></label>
                </th>
                <td>
                    <input type="date" name="fedistream_artist_formed_date" id="fedistream_artist_formed_date" value="<?php echo esc_attr( $formed_date ); ?>" class="regular-text">
                    <p class="description"><?php esc_html_e( 'When the artist/band was formed or started their career.', 'wp-fedistream' ); ?></p>
                </td>
            </tr>
            <tr>
                <th scope="row">
                    <label for="fedistream_artist_location"><?php esc_html_e( 'Location', 'wp-fedistream' ); ?></label>
                </th>
                <td>
                    <input type="text" name="fedistream_artist_location" id="fedistream_artist_location" value="<?php echo esc_attr( $location ); ?>" class="regular-text">
                    <p class="description"><?php esc_html_e( 'City, Country or region where the artist is based.', 'wp-fedistream' ); ?></p>
                </td>
            </tr>
            <tr>
                <th scope="row">
                    <label for="fedistream_artist_website"><?php esc_html_e( 'Website', 'wp-fedistream' ); ?></label>
                </th>
                <td>
                    <input type="url" name="fedistream_artist_website" id="fedistream_artist_website" value="<?php echo esc_url( $website ); ?>" class="regular-text">
                    <p class="description"><?php esc_html_e( 'Official website URL.', 'wp-fedistream' ); ?></p>
                </td>
            </tr>
        </table>
        <?php
    }

    /**
     * Render social links meta box.
     *
     * @param \WP_Post $post Post object.
     * @return void
     */
    public function render_social_meta_box( \WP_Post $post ): void {
        $social_links = get_post_meta( $post->ID, self::META_PREFIX . 'social_links', true );
        if ( ! is_array( $social_links ) ) {
            $social_links = array();
        }

        $platforms = array(
            'mastodon'  => __( 'Mastodon', 'wp-fedistream' ),
            'bandcamp'  => __( 'Bandcamp', 'wp-fedistream' ),
            'soundcloud' => __( 'SoundCloud', 'wp-fedistream' ),
            'youtube'   => __( 'YouTube', 'wp-fedistream' ),
            'instagram' => __( 'Instagram', 'wp-fedistream' ),
            'twitter'   => __( 'Twitter/X', 'wp-fedistream' ),
            'facebook'  => __( 'Facebook', 'wp-fedistream' ),
            'tiktok'    => __( 'TikTok', 'wp-fedistream' ),
            'other'     => __( 'Other', 'wp-fedistream' ),
        );
        ?>
        <table class="form-table">
            <?php foreach ( $platforms as $key => $label ) : ?>
            <tr>
                <th scope="row">
                    <label for="fedistream_social_<?php echo esc_attr( $key ); ?>"><?php echo esc_html( $label ); ?></label>
                </th>
                <td>
                    <input type="url" name="fedistream_artist_social[<?php echo esc_attr( $key ); ?>]" id="fedistream_social_<?php echo esc_attr( $key ); ?>" value="<?php echo esc_url( $social_links[ $key ] ?? '' ); ?>" class="regular-text">
                </td>
            </tr>
            <?php endforeach; ?>
        </table>
        <?php
    }

    /**
     * Render band members meta box.
     *
     * @param \WP_Post $post Post object.
     * @return void
     */
    public function render_members_meta_box( \WP_Post $post ): void {
        $members = get_post_meta( $post->ID, self::META_PREFIX . 'members', true );
        if ( ! is_array( $members ) ) {
            $members = array();
        }

        $artist_type = get_post_meta( $post->ID, self::META_PREFIX . 'type', true );
        ?>
        <div id="fedistream-members-wrapper" style="<?php echo 'solo' === $artist_type ? 'display:none;' : ''; ?>">
            <p class="description"><?php esc_html_e( 'Add band/group members (comma-separated names).', 'wp-fedistream' ); ?></p>
            <textarea name="fedistream_artist_members" id="fedistream_artist_members" rows="5" class="large-text"><?php echo esc_textarea( implode( "\n", $members ) ); ?></textarea>
            <p class="description"><?php esc_html_e( 'One member per line.', 'wp-fedistream' ); ?></p>
        </div>
        <script>
        jQuery(document).ready(function($) {
            $('#fedistream_artist_type').on('change', function() {
                if ($(this).val() === 'solo') {
                    $('#fedistream-members-wrapper').hide();
                } else {
                    $('#fedistream-members-wrapper').show();
                }
            });
        });
        </script>
        <?php
    }

    /**
     * Save post meta.
     *
     * @param int      $post_id Post ID.
     * @param \WP_Post $post    Post object.
     * @return void
     */
    public function save_meta( int $post_id, \WP_Post $post ): void {
        if ( ! $this->can_save( $post_id, 'fedistream_artist_save', 'fedistream_artist_nonce' ) ) {
            return;
        }

        // Save artist type.
        if ( isset( $_POST['fedistream_artist_type'] ) ) {
            $allowed_types = array( 'solo', 'band', 'duo', 'collective' );
            $type          = sanitize_text_field( wp_unslash( $_POST['fedistream_artist_type'] ) );
            if ( in_array( $type, $allowed_types, true ) ) {
                update_post_meta( $post_id, self::META_PREFIX . 'type', $type );
            }
        }

        // Save other fields.
        $this->save_date_meta( $post_id, self::META_PREFIX . 'formed_date', 'fedistream_artist_formed_date' );
        $this->save_text_meta( $post_id, self::META_PREFIX . 'location', 'fedistream_artist_location' );
        $this->save_url_meta( $post_id, self::META_PREFIX . 'website', 'fedistream_artist_website' );

        // Save social links.
        if ( isset( $_POST['fedistream_artist_social'] ) && is_array( $_POST['fedistream_artist_social'] ) ) {
            $social_links = array();
            foreach ( $_POST['fedistream_artist_social'] as $key => $url ) {
                $clean_key = sanitize_key( $key );
                $clean_url = esc_url_raw( wp_unslash( $url ) );
                if ( ! empty( $clean_url ) ) {
                    $social_links[ $clean_key ] = $clean_url;
                }
            }
            update_post_meta( $post_id, self::META_PREFIX . 'social_links', $social_links );
        }

        // Save members.
        if ( isset( $_POST['fedistream_artist_members'] ) ) {
            $members_text = sanitize_textarea_field( wp_unslash( $_POST['fedistream_artist_members'] ) );
            $members      = array_filter( array_map( 'trim', explode( "\n", $members_text ) ) );
            update_post_meta( $post_id, self::META_PREFIX . 'members', $members );
        }
    }

    /**
     * Get artist by ID with meta.
     *
     * @param int $post_id Post ID.
     * @return array|null Artist data or null.
     */
    public static function get_artist( int $post_id ): ?array {
        $post = get_post( $post_id );
        if ( ! $post || 'fedistream_artist' !== $post->post_type ) {
            return null;
        }

        return array(
            'id'           => $post->ID,
            'name'         => $post->post_title,
            'slug'         => $post->post_name,
            'bio'          => $post->post_content,
            'excerpt'      => $post->post_excerpt,
            'type'         => get_post_meta( $post_id, self::META_PREFIX . 'type', true ) ?: 'solo',
            'formed_date'  => get_post_meta( $post_id, self::META_PREFIX . 'formed_date', true ),
            'location'     => get_post_meta( $post_id, self::META_PREFIX . 'location', true ),
            'website'      => get_post_meta( $post_id, self::META_PREFIX . 'website', true ),
            'social_links' => get_post_meta( $post_id, self::META_PREFIX . 'social_links', true ) ?: array(),
            'members'      => get_post_meta( $post_id, self::META_PREFIX . 'members', true ) ?: array(),
            'photo'        => get_the_post_thumbnail_url( $post_id, 'large' ),
            'url'          => get_permalink( $post_id ),
        );
    }
}