<?php
/**
 * Activation and deactivation routines.
 *
 * @package Rentbaik
 */

namespace Rentbaik;

use Rentbaik\Database\Schema;

defined( 'ABSPATH' ) || exit;

/**
 * Creates tables, roles and default settings on activation.
 */
final class Installer {

	/**
	 * Scheduled events owned by the plugin (cleared on deactivation).
	 */
	public const CRON_HOOKS = array( 'rentbaik_release_expired_holds', 'rentbaik_send_reminders' );

	/**
	 * Activation callback.
	 *
	 * @param bool $network_wide Whether the plugin is network activated.
	 * @return void
	 */
	public static function activate( $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::install();
				restore_current_blog();
			}
			return;
		}

		self::install();
	}

	/**
	 * Install everything the plugin needs on the current site.
	 *
	 * @return void
	 */
	public static function install(): void {
		Schema::install();
		Capabilities::install();
		Settings::add_defaults();
		update_option( 'rentbaik_version', RENTBAIK_VERSION, false );

		// Register the vehicle post type now so its pretty URLs work right away.
		\Rentbaik\Fleet\VehiclePostType::register_types();
		\Rentbaik\Frontend\Pages::create_missing();
		flush_rewrite_rules( false );

		if ( false === get_option( 'rentbaik_installed_at', false ) ) {
			update_option( 'rentbaik_installed_at', time(), false );
		}
		\Rentbaik\Admin\SetupWizard::queue_redirect();
	}

	/**
	 * Deactivation callback: stop scheduled jobs, keep all data.
	 *
	 * @param bool $network_wide Whether the plugin is network deactivated.
	 * @return void
	 */
	public static function deactivate( $network_wide = false ): void {
		if ( is_multisite() && $network_wide ) {
			foreach ( get_sites(
				array(
					'fields' => 'ids',
					'number' => 0,
				)
			) as $site_id ) {
				switch_to_blog( (int) $site_id );
				self::clear_cron();
				restore_current_blog();
			}
			return;
		}
		self::clear_cron();
	}

	/**
	 * Remove the scheduled jobs of the current site.
	 *
	 * @return void
	 */
	private static function clear_cron(): void {
		foreach ( self::CRON_HOOKS as $hook ) {
			wp_clear_scheduled_hook( $hook );
		}
	}

	/**
	 * Multisite hooks: set up new sites and remove tables of deleted sites.
	 *
	 * @return void
	 */
	public static function register(): void {
		if ( ! is_multisite() ) {
			return;
		}
		// After WordPress has created the new site's own tables (priority 10).
		add_action( 'wp_initialize_site', array( self::class, 'new_site' ), 20 );
		add_filter( 'wpmu_drop_tables', array( self::class, 'drop_tables' ), 10, 2 );
	}

	/**
	 * A site was added to the network: install Rentbaik there when it is network active.
	 *
	 * @param \WP_Site $site New site.
	 * @return void
	 */
	public static function new_site( $site ): void {
		if ( ! function_exists( 'is_plugin_active_for_network' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}
		if ( ! is_plugin_active_for_network( plugin_basename( RENTBAIK_FILE ) ) ) {
			return;
		}
		switch_to_blog( (int) $site->blog_id );
		self::install();
		restore_current_blog();
	}

	/**
	 * A site is deleted: drop its Rentbaik tables too.
	 *
	 * @param string[] $tables  Tables WordPress will drop.
	 * @param int      $site_id Site ID.
	 * @return string[]
	 */
	public static function drop_tables( $tables, $site_id = 0 ): array {
		global $wpdb;
		$prefix = $wpdb->get_blog_prefix( (int) $site_id ) . 'rentbaik_';
		foreach ( Schema::TABLES as $name ) {
			$tables[] = $prefix . $name;
		}
		return array_values( array_unique( (array) $tables ) );
	}
}