<?php
/**
 * Plugin core orchestrator.
 *
 * @package AdbearImageCleaner
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Main plugin class.
 */
class Adbear_Image_Cleaner_Plugin {

	/**
	 * Singleton instance.
	 *
	 * @var Adbear_Image_Cleaner_Plugin|null
	 */
	private static $instance = null;

	/**
	 * Scanner service.
	 *
	 * @var Adbear_Image_Cleaner_Scanner
	 */
	private $scanner;

	/**
	 * Cleaner service.
	 *
	 * @var Adbear_Image_Cleaner_Cleaner
	 */
	private $cleaner;

	/**
	 * Exporter service.
	 *
	 * @var Adbear_Image_Cleaner_Exporter
	 */
	private $exporter;

	/**
	 * Admin service.
	 *
	 * @var Adbear_Image_Cleaner_Admin
	 */
	private $admin;

	/**
	 * Get singleton.
	 *
	 * @return Adbear_Image_Cleaner_Plugin
	 */
	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}

		return self::$instance;
	}

	/**
	 * Constructor.
	 */
	private function __construct() {
		$this->scanner  = new Adbear_Image_Cleaner_Scanner();
		$this->cleaner  = new Adbear_Image_Cleaner_Cleaner();
		$this->exporter = new Adbear_Image_Cleaner_Exporter( $this->scanner );
		$this->admin    = new Adbear_Image_Cleaner_Admin( $this->scanner, $this->cleaner, $this->exporter );

	}

	/**
	 * Runs on activation.
	 *
	 * @return void
	 */
	public static function activate() {
		delete_transient( 'pixelcraft_image_cleaner_scan_results' );
		if ( false === get_transient( Adbear_Image_Cleaner_Scanner::RESULTS_TRANSIENT_KEY ) ) {
			set_transient( Adbear_Image_Cleaner_Scanner::RESULTS_TRANSIENT_KEY, array(), DAY_IN_SECONDS );
		}
	}

	/**
	 * Runs on deactivation.
	 *
	 * @return void
	 */
	public static function deactivate() {
		delete_transient( Adbear_Image_Cleaner_Scanner::RESULTS_TRANSIENT_KEY );
	}

}