<?php
/**
 * Controller for Events Calendar Pro Elementor integrations.
 *
 * @since 6.4.0
 *
 * @package TEC\Events\Integrations\Plugins\Elementor
 */

namespace TEC\Events\Integrations\Plugins\Elementor;

use Elementor\Elements_Manager;
use WP_Post;
use TEC\Common\Integrations\Traits\Plugin_Integration;
use TEC\Events\Integrations\Integration_Abstract;
use TEC\Events\Integrations\Plugins\Elementor\Template\Controller as Template_Controller;
use TEC\Events\Custom_Tables\V1\Models\Occurrence;
use Elementor\Core\Base\Document;
use Tribe__Template as Template;
use Tribe__Events__Main as TEC;
use TEC\Common\StellarWP\Installer\Utils\Array_Utils;
use Tribe__Events__Revisions__Preview;

/**
 * Class Controller
 *
 * @since 6.4.0
 *
 * @package TEC\Events\Integrations\Plugins\Elementor
 */
class Controller extends Integration_Abstract {
	use Plugin_Integration;

	/**
	 * The template instance.
	 *
	 * @since 6.4.0
	 *
	 * @var Tribe_Template
	 */
	protected $template;

	/**
	 * {@inheritDoc}
	 *
	 * @since 6.4.0
	 */
	public static function get_slug(): string {
		return 'elementor';
	}

	/**
	 * {@inheritDoc}
	 *
	 * @since 6.4.0
	 *
	 * @return bool Whether integrations should load.
	 */
	public function load_conditionals(): bool {
		return defined( 'ELEMENTOR_PATH' ) && ! empty( ELEMENTOR_PATH );
	}

	/**
	 * {@inheritdoc}
	 *
	 * @since 6.4.0
	 */
	public function load(): void {
		$this->container->register_on_action( 'elementor/init', Template_Controller::class );
		$this->container->register_on_action( 'elementor/widgets/register', Widgets_Manager::class );
		$this->container->register_on_action( 'elementor/loaded', Assets_Manager::class );

		$this->register_actions();
		$this->register_filters();

		// Make sure we instantiate the assets manager.
		tribe( Assets_Manager::class );

		// Make sure we instantiate the templates controller.
		tribe( Template_Controller::class );

		$this->register_assets();

		/**
		 * Fires after the TEC Elementor integration has been loaded.
		 *
		 * @since 6.4.0.1
		 */
		do_action( 'tec_events_elementor_loaded' );
	}

	/**
	 * Register actions.
	 *
	 * @since 6.4.0
	 */
	public function register_actions(): void {
		add_action( 'edit_form_after_title', [ $this, 'modify_switch_mode_button' ], 15, 1 );
		add_action( 'elementor/elements/categories_registered', [ $this, 'action_register_elementor_category' ] );
		add_action( 'elementor/controls/controls_registered', [ $this, 'action_register_elementor_controls' ] );
		add_action( 'template_redirect', [ $this, 'action_remove_revision_metadata_modifier' ], 1 );
		add_action( 'elementor_pro/init', [ $this, 'action_handle_elementor_pro_init' ] );
	}

	/**
	 * Registers widget categories for Elementor.
	 *
	 * @since 5.4.0
	 *
	 * @param Elements_Manager $elements_manager Elementor Manager instance.
	 */
	public function action_register_elementor_category( $elements_manager ): void {
		$elements_manager->add_category(
			'the-events-calendar',
			[
				'title' => __( 'The Events Calendar', 'the-events-calendar' ),
				'icon'  => 'eicon-calendar',
			]
		);
	}

	/**
	 * Register filters.
	 *
	 * @since 6.4.0
	 */
	public function register_filters(): void {
		add_filter( 'elementor/query/query_args', [ $this, 'suppress_query_filters' ], 10, 1 );
		add_filter( 'the_content', [ $this, 'disable_blocks_on_display' ], 10 );
		add_filter( 'tec_events_allow_single_block_template', [ $this, 'filter_tec_events_allow_single_block_template' ] );
		add_filter( 'tec_events_settings_display_calendar_section', [ $this, 'filter_display_calendar_section' ], 10, 1 );
	}

	/**
	 * Register the assets for the Elementor integration.
	 *
	 * @since 6.4.0
	 *
	 * @return void
	 */
	protected function register_assets(): void {
		$plugin = tribe( 'tec.main' );
		tec_asset(
			$plugin,
			'tec-events-elementor-admin',
			'integrations/plugins/elementor/admin.css',
			[],
			'admin_enqueue_scripts',
			[
				'conditionals' => [ $this, 'should_load_admin_styles' ],
			]
		);
	}

	/**
	 * Registers controls for Elementor.
	 *
	 * @since 6.4.0
	 */
	public function action_register_elementor_controls(): void {
		$this->container->make( Controls_Manager::class )->register();
	}

	/**
	 * Checks if Elementor Pro is active.
	 * For registering controllers, etc, use register_on_action(  'elementor_pro/init' )
	 *
	 * @since 6.4.0
	 *
	 * @return bool
	 */
	public function is_elementor_pro_active(): bool {
		return defined( 'ELEMENTOR_PRO_VERSION' );
	}


	/**
	 * Checks if the admin styles should be loaded.
	 *
	 * @since 6.4.0
	 *
	 * @return bool
	 */
	public function should_load_admin_styles(): bool {
		return \Tribe__Admin__Helpers::instance()->is_post_type_screen( TEC::POSTTYPE );
	}

	/**
	 * Test function to re-save the metadata as the base post in a series.
	 *
	 * This is a temporary solution to fix the issue with the Elementor data not being saved on the real post.
	 * It's NOT WORKING CORRECTLY as of yet, and the issue is still being investigated.
	 *
	 * @since 6.4.0
	 *
	 * @param \Elementor\Core\DocumentTypes\Post $document    The document.
	 * @param array                              $editor_data The editor data.
	 */
	public function action_elementor_document_after_save( $document, $editor_data ): void {
		if ( empty( $document ) ) {
			return;
		}

		$occurrence_id = $document->get_main_id();
		$event         = tribe_get_event( $occurrence_id );

		// This is an occurrence the real post ID is hold as a reference on the occurrence table.
		if ( empty( $event->_tec_occurrence->post_id ) || ! $event->_tec_occurrence instanceof Occurrence ) {
			return;
		}

		$saved_meta = get_post_meta( $occurrence_id, '_elementor_data', true );

		$real_id = $event->_tec_occurrence->post_id;

		// Don't use `update_post_meta` that can't handle `revision` post type.
		$is_meta_updated = update_metadata( 'post', $real_id, '_elementor_data', $saved_meta );
	}

	/**
	 * Modify the switch mode button to show a warning when the event is not properly saved yet.
	 *
	 * @since 6.4.0
	 *
	 * @param WP_Post|int|string $post The post object.
	 *
	 * @return void
	 */
	public function modify_switch_mode_button( $post ): void {
		// Since this is a hook, we need to check if the post is an object.
		if ( ! $post instanceof \WP_Post ) {
			return;
		}

		if ( ! tribe_is_event( $post ) ) {
			return;
		}

		$start_date = get_post_meta( $post->ID, '_EventStartDate', true );
		$end_date   = get_post_meta( $post->ID, '_EventEndDate', true );

		if ( ! empty( $start_date ) && ! empty( $end_date ) ) {
			return;
		}

		$this->get_template()->template( 'switch-warning', [ 'post' => $post ] );
	}

	/**
	 * Modifies the Elementor posts widget query arguments to set 'tribe_suppress_query_filters' to true for the Event post type.
	 *
	 * @since 6.15.18 Added is_array verification to guard against non-array values passed by Elementor in some contexts.
	 *
	 * @param array $query_args The Elementor posts widget query arguments.
	 *
	 * @return array The modified Elementor posts widget query arguments.
	 */
	public function suppress_query_filters( $query_args ): array {
		// Guard against non-array values (e.g. null) passed by Elementor in some contexts.
		if ( ! is_array( $query_args ) ) {
			return [];
		}

		/**
		 * Checks if the 'tribe_events' post type is present in the query arguments.
		 * If not, it returns the query arguments unmodified.
		 */
		if ( ! in_array( \Tribe__Events__Main::POSTTYPE, (array) $query_args['post_type'], true ) ) {
			return $query_args;
		}

		// Set the 'tribe_suppress_query_filters' to true.
		$query_args['tribe_suppress_query_filters'] = true;

		return $query_args;
	}

	/**
	 * Filters the tec_events_allow_single_block_template flag to disable it for events edited with Elementor.
	 *
	 * @since 6.4.0
	 *
	 * @param bool $allow_single Whether the single block template should be used.
	 */
	public function filter_tec_events_allow_single_block_template( bool $allow_single ): bool {
		global $post;

		// Not a post.
		if ( ! $post instanceof WP_Post ) {
			return $allow_single;
		}

		// Not an event.
		if ( ! tribe_is_event( $post ) ) {
			return $allow_single;
		}

		if (
			// Not an event edited with Elementor.
			// Or one having an Elementor template applied.
			! tribe( Template_Controller::class )->is_override()
		) {
			return $allow_single;
		}

		return false;
	}

	/**
	 * Disables the Blocks Editor on posts that have been edited with Elementor.
	 * By filtering them out of the post content on display.
	 *
	 * @since 6.4.0
	 * @since 6.9.1 Added check that content is not null.
	 *
	 * @param string $content The post content.
	 *
	 * @return string The modified post content.
	 */
	public function disable_blocks_on_display( $content ): string {
		global $post;

		// Check that content is not null.
		if ( null === $content ) {
			return '';
		}

		// Not a post.
		if ( ! $post instanceof WP_Post ) {
			return $content;
		}

		// Not an event.
		if ( ! tribe_is_event( $post ) ) {
			return $content;
		}

		if (
			// Not an event edited with Elementor.
			// Or one having an Elementor template applied.
			! tribe( Template_Controller::class )->is_override()
		) {
			return $content;
		}

		// Remove TEC blocks when displayed in an elementor widget.
		return preg_replace(
			'/<!-- wp:tribe.*-->/miU',
			'',
			$content
		);
	}

	/**
	 * Checks if the post was edited with Elementor.
	 *
	 * @since 6.4.0
	 *
	 * @param int $post_id The post ID.
	 *
	 * @return bool
	 */
	public function built_with_elementor( $post_id = null ): bool {
		if ( ! $post_id ) {
			$post_id = tribe_get_request_var( 'post' );
		}

		// Handle previews.
		if ( ! $post_id ) {
			$post_id = tribe_get_request_var( 'preview_id' );
		}

		// We can't get the post ID, bail out.
		if ( ! $post_id ) {
			return false;
		}

		// Not an event, bail out.
		if ( ! tribe_is_event( $post_id ) ) {
			return false;
		}

		$elementor_edit = get_post_meta( $post_id, Document::BUILT_WITH_ELEMENTOR_META_KEY, true );

		/**
		 * Filters whether the post was built with Elementor.
		 *
		 * Specifically only filtering for Events and takes in consideration if we are looking at a preview request
		 * and uses the same meta as Elementor itself to check, see `Document::BUILT_WITH_ELEMENTOR_META_KEY`.
		 *
		 * @since 6.4.0
		 *
		 * @param bool $elementor_edit Whether the post was built with Elementor.
		 * @param int $post_id The post ID.
		 */
		return apply_filters( 'tec_events_elementor_built_with_elementor', $elementor_edit, $post_id );
	}

	/**
	 * Gets the template instance used to setup the rendering html.
	 *
	 * @since 6.4.0
	 *
	 * @return Template
	 */
	public function get_template() {
		if ( empty( $this->template ) ) {
			$this->template = new Template();
			$this->template->set_template_origin( tribe( 'tec.main' ) );
			$this->template->set_template_folder( 'src/admin-views/integrations/plugins/elementor' );
			$this->template->set_template_context_extract( true );
		}

		return $this->template;
	}

	/**
	 * Removes the revision metadata modifier on event previews in Elementor.
	 *
	 * @since 6.4.0
	 */
	public function action_remove_revision_metadata_modifier(): void {
		if ( ! is_preview() ) {
			return;
		}

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

		remove_action( 'template_redirect', [ Tribe__Events__Revisions__Preview::instance(), 'hook' ] );
	}

	/**
	 * Handles Elementor Pro initialization to automatically reset template settings.
	 *
	 * This method is triggered when Elementor Pro initializes and automatically switches
	 * users from "Default Page Template" to "Default Events Template" to prevent conflicts.
	 * This handles the use case where a user has set the template to "Default Page Template"
	 * and then activates Elementor Pro without visiting the settings page.
	 *
	 * @since 6.15.6
	 *
	 * @return void Template setting is updated if needed.
	 */
	public function action_handle_elementor_pro_init(): void {
		// Auto-switch existing users from "default" to "Default Events Template".
		$current_template = tribe_get_option( 'tribeEventsTemplate', 'default' );
		if ( 'default' === $current_template ) {
			tribe_update_option( 'tribeEventsTemplate', '' );
		}
	}

	/**
	 * Filters the display calendar section to remove "Default Page Template" when Elementor Pro is active.
	 *
	 * @since 6.15.6
	 *
	 * @param array<string,mixed> $display_calendar_section The display calendar section configuration array.
	 *
	 * @return array<string,mixed> The filtered display calendar section array.
	 */
	public function filter_display_calendar_section( array $display_calendar_section ): array {
		// Only modify the section if Elementor Pro is active.
		if ( ! $this->is_elementor_pro_active() ) {
			return $display_calendar_section;
		}

		// Grab the template options.
		$template_options = Array_Utils::get_in_any( [ $display_calendar_section ], [ 'tribeEventsTemplate', 'options' ] );

		// Only proceed if template options exist and contain the 'default' option.
		if ( $template_options && Array_Utils::get_in_any( [ $template_options ], [ 'default' ] ) ) {
			unset( $template_options['default'] );
			$display_calendar_section['tribeEventsTemplate']['options'] = $template_options;
		}

		return $display_calendar_section;
	}
}