<?php
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

final class SG7G_Plugin {
    private static ?SG7G_Plugin $instance = null;

    public static function instance(): SG7G_Plugin {
        if ( null === self::$instance ) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    private function __construct() {
        $this->includes();
        $this->hooks();
    }

    private function includes(): void {
        require_once SG7G_DIR . 'includes/class-sg7g-settings.php';
        require_once SG7G_DIR . 'includes/class-sg7g-post-type.php';
        require_once SG7G_DIR . 'includes/class-sg7g-meta-boxes.php';
        require_once SG7G_DIR . 'includes/class-sg7g-default-cover.php';
        require_once SG7G_DIR . 'includes/class-sg7g-featured.php';
        require_once SG7G_DIR . 'includes/class-sg7g-sharing.php';
        require_once SG7G_DIR . 'includes/class-sg7g-related.php';
        require_once SG7G_DIR . 'includes/class-sg7g-admin.php';
        require_once SG7G_DIR . 'includes/class-sg7g-renderer.php';
        require_once SG7G_DIR . 'includes/class-sg7g-archive-ui.php';
        require_once SG7G_DIR . 'includes/class-sg7g-search.php';
        require_once SG7G_DIR . 'includes/class-sg7g-query.php';
        require_once SG7G_DIR . 'includes/class-sg7g-template-loader.php';
        require_once SG7G_DIR . 'includes/class-sg7g-assets.php';
        require_once SG7G_DIR . 'includes/class-sg7g-statistics.php';
        require_once SG7G_DIR . 'includes/class-sg7g-views.php';
        require_once SG7G_DIR . 'includes/class-sg7g-likes.php';
        require_once SG7G_DIR . 'includes/class-sg7g-seo.php';
        require_once SG7G_DIR . 'includes/class-sg7g-upgrade.php';
        require_once SG7G_DIR . 'includes/class-sg7g-transfer.php';
    }

    private function hooks(): void {
        add_action( 'init', array( __CLASS__, 'load_textdomain' ), 1 );
        add_action( 'init', array( 'SG7G_Post_Type', 'register' ) );

        SG7G_Settings::init();
        SG7G_Meta_Boxes::init();
        SG7G_Default_Cover::init();
        SG7G_Featured::init();
        SG7G_Sharing::init();
        SG7G_Admin::init();
        SG7G_Search::init();
        SG7G_Query::init();
        SG7G_Template_Loader::init();
        SG7G_Assets::init();
        SG7G_Statistics::init();
        SG7G_Views::init();
        SG7G_Likes::init();
        SG7G_SEO::init();
        SG7G_Upgrade::init();
        SG7G_Transfer::init();

        if ( is_multisite() ) {
            add_action( 'wp_initialize_site', array( __CLASS__, 'activate_new_site' ), 100, 2 );
        }
    }

    public static function load_textdomain(): void {
        load_plugin_textdomain(
            '7sgaleri',
            false,
            dirname( plugin_basename( SG7G_FILE ) ) . '/languages'
        );
    }

    public static function activate( bool $network_wide = false ): void {
        if ( is_multisite() && $network_wide ) {
            $site_ids = get_sites( array( 'fields' => 'ids', 'number' => 0 ) );
            foreach ( $site_ids as $site_id ) {
                switch_to_blog( (int) $site_id );
                self::activate_site();
                restore_current_blog();
            }
            return;
        }

        self::activate_site();
    }

    public static function deactivate( bool $network_wide = false ): void {
        if ( is_multisite() && $network_wide ) {
            $site_ids = get_sites( array( 'fields' => 'ids', 'number' => 0 ) );
            foreach ( $site_ids as $site_id ) {
                switch_to_blog( (int) $site_id );
                self::deactivate_site();
                restore_current_blog();
            }
            return;
        }

        self::deactivate_site();
    }

    public static function activate_new_site( WP_Site $new_site, array $args = array() ): void {
        unset( $args );

        require_once ABSPATH . 'wp-admin/includes/plugin.php';
        if ( ! is_plugin_active_for_network( plugin_basename( SG7G_FILE ) ) ) {
            return;
        }

        switch_to_blog( (int) $new_site->blog_id );
        self::activate_site();
        restore_current_blog();
    }

    private static function deactivate_site(): void {
        if ( post_type_exists( 'sg7g_media' ) ) {
            unregister_post_type( 'sg7g_media' );
        }
        if ( taxonomy_exists( 'sg7g_category' ) ) {
            unregister_taxonomy( 'sg7g_category' );
        }
        if ( taxonomy_exists( 'sg7g_tag' ) ) {
            unregister_taxonomy( 'sg7g_tag' );
        }

        flush_rewrite_rules( false );
    }

    private static function activate_site(): void {
        require_once SG7G_DIR . 'includes/class-sg7g-settings.php';
        require_once SG7G_DIR . 'includes/class-sg7g-post-type.php';
        require_once SG7G_DIR . 'includes/class-sg7g-statistics.php';
        require_once SG7G_DIR . 'includes/class-sg7g-likes.php';

        SG7G_Settings::install_defaults();
        SG7G_Post_Type::register();
        SG7G_Statistics::install();
        SG7G_Likes::install();
        update_option( 'sg7g_plugin_version', SG7G_VERSION, false );
        flush_rewrite_rules( false );
    }
}