<?php
/**
 * File: Cron AJAX Handler.
 *
 * @package Accessibility_Audio_TTS\Handlers
 */

namespace Accessibility_Audio_TTS\Handlers;

use Accessibility_Audio_TTS\Admin\Ajax_Security_Trait;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// Ensure dependencies are loaded.
require_once ACCESSIBILITY_AUDIO_TTS_PLUGIN_DIR . 'infrastructure/ajax/ajax-security-trait.php';
require_once ACCESSIBILITY_AUDIO_TTS_PLUGIN_DIR . 'infrastructure/cron/cron-status-provider.php';
require_once ACCESSIBILITY_AUDIO_TTS_PLUGIN_DIR . 'infrastructure/cron/cron-execution-manager.php';
require_once ACCESSIBILITY_AUDIO_TTS_PLUGIN_DIR . 'infrastructure/cron/cron-posts-manager.php';

/**
 * Main coordinator for cron operations.
 *
 * Uses dependency injection and delegation to specialized handlers.
 * Following SOLID principles: Single Responsibility, Open/Closed, Dependency Inversion.
 */
class Cron_Ajax_Handler {

	use Ajax_Security_Trait;

	/**
	 * Status provider for cron operations.
	 *
	 * @var Cron_Status_Provider
	 */
	private $status_provider;

	/**
	 * Execution manager responsible for triggering cron.
	 *
	 * @var Cron_Execution_Manager
	 */
	private $execution_manager;

	/**
	 * Posts manager for rendering/fetching generated posts.
	 *
	 * @var Cron_Posts_Manager
	 */
	private $posts_manager;

	/**
	 * Constructor with dependency injection.
	 *
	 * @param Cron_Status_Provider   $status_provider   Status provider.
	 * @param Cron_Execution_Manager $execution_manager Execution manager.
	 * @param Cron_Posts_Manager     $posts_manager     Posts manager.
	 */
	public function __construct(
		?Cron_Status_Provider $status_provider = null,
		?Cron_Execution_Manager $execution_manager = null,
		?Cron_Posts_Manager $posts_manager = null
	) {
		$this->status_provider   = $status_provider ?? new Cron_Status_Provider();
		$this->execution_manager = $execution_manager ?? new Cron_Execution_Manager();
		$this->posts_manager     = $posts_manager ?? new Cron_Posts_Manager();
	}

	/**
	 * Register WP AJAX actions.
	 *
	 * Only prefixed actions are registered to comply with naming rules.
	 */
	public function register_actions() {
		add_action( 'wp_ajax_accessibility_audio_tts_get_cron_status', array( $this, 'handle_get_cron_status' ) );
		add_action( 'wp_ajax_accessibility_audio_tts_trigger_cron_manually', array( $this, 'handle_trigger_cron_manually' ) );
		add_action( 'wp_ajax_accessibility_audio_tts_get_generated_posts', array( $this, 'handle_get_generated_posts' ) );
	}

	/**
	 * Return cron status payload.
	 *
	 * @return void
	 */
	public function handle_get_cron_status() {
		accessibility_audio_tts_debug_log( '=== AAT_GET_CRON_STATUS START ===' );

		try {
			if ( ! $this->validate_ajax_request() ) {
				return;
			}

			accessibility_audio_tts_debug_log( 'Security checks passed, processing cron status...' );

			$response_data = $this->status_provider->get_complete_status();

			accessibility_audio_tts_debug_log( 'Sending success response with ' . count( $response_data ) . ' fields' );
			wp_send_json_success( $response_data );

		} catch ( \Exception $e ) {
			$this->handle_ajax_exception( $e, 'AAT cron status' );
		}
	}

	/**
	 * Trigger cron manually and return result.
	 *
	 * @return void
	 */
	public function handle_trigger_cron_manually() {
		accessibility_audio_tts_debug_log( '=== TRIGGER_CRON_MANUALLY START ===' );

		try {
			if ( ! $this->validate_ajax_request() ) {
				return;
			}

			accessibility_audio_tts_debug_log( 'Security checks passed for trigger_cron_manually, spawning cron...' );

			$result = $this->execution_manager->trigger_cron_manually();

			if ( $result['success'] ) {
				wp_send_json_success( $result );
			} else {
				wp_send_json_error( $result );
			}
		} catch ( \Exception $e ) {
			$this->handle_ajax_exception( $e, 'Manual cron trigger' );
		}
	}

	/**
	 * Get posts list for display.
	 *
	 * @return void
	 */
	public function handle_get_generated_posts() {
		try {
			if ( ! $this->validate_ajax_request() ) {
				return;
			}

			$response = $this->posts_manager->get_generated_posts();
			wp_send_json_success( $response );

		} catch ( \Exception $e ) {
			$this->handle_ajax_exception( $e, 'Get generated posts' );
		}
	}

	/**
	 * Get status provider instance.
	 *
	 * @return Cron_Status_Provider Status provider.
	 */
	public function get_status_provider() {
		return $this->status_provider;
	}

	/**
	 * Get execution manager instance.
	 *
	 * @return Cron_Execution_Manager Execution manager.
	 */
	public function get_execution_manager() {
		return $this->execution_manager;
	}

	/**
	 * Get posts manager instance.
	 *
	 * @return Cron_Posts_Manager Posts manager.
	 */
	public function get_posts_manager() {
		return $this->posts_manager;
	}
}