<?php
/**
 * Wires the plugin into WordPress.
 *
 * @package LaunchList
 */

namespace LaunchList;

defined( 'ABSPATH' ) || exit;

/**
 * Boot, activation, deactivation and uninstall.
 */
class Plugin {

	/**
	 * Whether {@see Plugin::boot()} ran.
	 *
	 * @var bool
	 */
	private static $booted = false;

	/**
	 * Add every hook (on `plugins_loaded`).
	 *
	 * @return void
	 */
	public static function boot() {
		if ( self::$booted ) {
			return;
		}

		self::$booted = true;

		add_action( 'init', array( __CLASS__, 'init' ) );
		add_action( Queue::HOOK, array( Queue::class, 'run' ) );
		add_action( 'rest_api_init', array( Rest::class, 'register' ) );
		add_action( 'wp_enqueue_scripts', array( Embed::class, 'enqueue_everywhere' ) );
		add_filter( 'script_loader_tag', array( Embed::class, 'script_tag' ), 10, 2 );

		// Declares that the loader waits for marketing consent where the WP Consent API is active.
		add_filter( 'wp_consent_api_registered_' . plugin_basename( LAUNCHLIST_FILE ), '__return_true' );

		Privacy::boot();

		if ( is_admin() ) {
			Admin::boot();
		}

		// The form plugins' hooks, late so those plugins have loaded. While connected, revoked
		// included (signups are kept for a reconnect); never on a copy of a connected site.
		if ( Connection::is_connected() && ! Connection::is_copy() ) {
			add_action( 'plugins_loaded', array( __CLASS__, 'register_integrations' ), 99 );
		}
	}

	/**
	 * `init`: the queue table and its event, the loader, shortcode and block. Translations come from
	 * WordPress.org language packs, which WordPress loads on its own.
	 *
	 * @return void
	 */
	public static function init() {
		Queue::maybe_install();
		Queue::ensure_scheduled();
		Embed::init();
	}

	/**
	 * Add the active adapters' submission hooks. An adapter that fails is skipped; the site carries
	 * on.
	 *
	 * @return void
	 */
	public static function register_integrations() {
		try {
			$adapters = Integrations::available();
		} catch ( \Throwable $e ) {
			self::log( $e );

			return;
		}

		foreach ( $adapters as $adapter ) {
			try {
				$adapter->register();
			} catch ( \Throwable $e ) {
				self::log( $e );
			}
		}
	}

	/**
	 * Activation: the queue table, and its event if rows were left from before.
	 *
	 * @return void
	 */
	public static function activate() {
		Queue::install();
		Queue::reschedule();
	}

	/**
	 * Deactivation: stop the retry event. The connection, routes and queue are kept.
	 *
	 * @return void
	 */
	public static function deactivate() {
		wp_clear_scheduled_hook( Queue::HOOK );
	}

	/**
	 * Remove everything this plugin stored on the current site (uninstall.php calls it per site):
	 * ask LaunchList to remove the site (best effort), drop the queue table, delete every
	 * `launchlist_` option and transient, and clear the event.
	 *
	 * @return void
	 */
	public static function uninstall_site() {
		global $wpdb;

		$credentials = Connection::credentials();
		$transients  = array( Forms::TRANSIENT, Relay::HOLD, 'launchlist_queue_lock' );

		foreach ( Routes::all() as $route ) {
			$transients[] = Relay::FORM_HOLD . $route['form'];
		}

		// A copy never removes the connection of the site it was copied from.
		if ( null !== $credentials && ! Connection::is_copy() ) {
			Client::signed( 'DELETE', '/wordpress/site', null, Client::RELAY_TIMEOUT, $credentials );
		}

		Queue::drop();

		// phpcs:ignore WordPress.DB.DirectDatabaseQuery -- One-off cleanup; each option is then deleted through the API so caches stay right.
		$names = $wpdb->get_col(
			$wpdb->prepare(
				"SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE %s OR option_name LIKE %s OR option_name LIKE %s",
				$wpdb->esc_like( 'launchlist_' ) . '%',
				$wpdb->esc_like( '_transient_launchlist_' ) . '%',
				$wpdb->esc_like( '_transient_timeout_launchlist_' ) . '%'
			)
		);

		foreach ( is_array( $names ) ? $names : array() as $name ) {
			if ( 0 === strpos( $name, '_transient_timeout_' ) ) {
				continue;
			}

			if ( 0 === strpos( $name, '_transient_' ) ) {
				delete_transient( substr( $name, strlen( '_transient_' ) ) );
			} else {
				delete_option( $name );
			}
		}

		// Transients kept in a persistent object cache are not in the options table.
		foreach ( $transients as $transient ) {
			delete_transient( $transient );
		}
	}

	/**
	 * Log an error while debugging.
	 *
	 * @param \Throwable $error The error.
	 * @return void
	 */
	private static function log( $error ) {
		if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
			error_log( 'LaunchList: ' . $error->getMessage() ); // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_error_log
		}
	}
}