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<?php
/**
 * Manages the External Calendar Embeds Feature.
 *
 * @since 6.11.0
 *
 * @package TEC\Events\Calendar_Embeds
 */

namespace TEC\Events\Calendar_Embeds;

use TEC\Common\Contracts\Container;
use TEC\Common\Contracts\Provider\Controller as Controller_Contract;
use Tribe\Events\Views\V2\Assets as Event_Assets;
use TEC\Common\StellarWP\Assets\Asset;
use Tribe__Events__Main as TEC;

/**
 * Class Controller
 *
 * @since 6.11.0

* @package TEC\Events\Calendar_Embeds
 */
class Frontend extends Controller_Contract {

/**
	 * The template.
	 *
	 * @since 6.11.0
	 *
	 * @var Template
	 */
	private Template $template;

/**
	 * Page constructor.
	 *
	 * @since 6.11.0
	 *
	 * @param Container $container  The container.
	 * @param Template  $template   The template.
	 */
	public function __construct( Container $container, Template $template ) {
		parent::__construct( $container );

$this->template = $template;
	}

/**
	 * Registers the filters and actions hooks added by the controller.
	 *
	 * @since 6.11.0
	 *
	 * @return void
	 */
	public function do_register(): void {
		$this->register_assets();
		add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
		add_filter( 'embed_template', [ $this, 'overwrite_embed_template' ] );
		add_filter( 'the_content', [ $this, 'overwrite_content' ] );
		add_filter( 'tribe_repository_events_query_args', [ $this, 'filter_repository_events_query_args' ] );
	}

/**
	 * Removes the filters and actions hooks added by the controller.
	 *
	 * @since 6.11.0
	 *
	 * @return void
	 */
	public function unregister(): void {
		remove_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
		remove_filter( 'embed_template', [ $this, 'overwrite_embed_template' ] );
		remove_filter( 'the_content', [ $this, 'overwrite_content' ] );
		remove_filter( 'tribe_repository_events_query_args', [ $this, 'filter_repository_events_query_args' ] );
	}

/**
	 * Filters the repository events query args.
	 *
	 * @since 6.11.0
	 *
	 * @param array<string,mixed> $args The query args.
	 *
	 * @return array<string,mixed> The query args.
	 */
	public function filter_repository_events_query_args( $args ): array {
		$context = tribe_context();
		if ( 'month' !== $context->get( 'view' ) ) {
			return $args;
		}

$view_url = $context->get( 'view_prev_url' );

$embed = '';
		if ( $view_url ) {
			wp_parse_str( wp_parse_url( $view_url, PHP_URL_QUERY ), $embed );
			$embed = $embed['embed'] ?? '';
		}

static $is_ece = null;

if ( null === $is_ece ) {
			$is_ece = is_singular( Calendar_Embeds::POSTTYPE );
		}

if ( ! $is_ece && ! $embed ) {
			return $args;
		}

if ( isset( $args['tax_query']['post_tag_term_id_and'] ) ) {
			$args['tax_query']['post_tag_term_id_in'] = $args['tax_query']['post_tag_term_id_and'];
			unset( $args['tax_query']['post_tag_term_id_and'] );
			$args['tax_query']['post_tag_term_id_in']['operator'] = 'IN';
		}

if ( isset( $args['tax_query']['relation'] ) ) {
			$args['tax_query']['relation'] = 'OR';
		}

return $args;
	}

/**
	 * Enqueues the scripts and styles for the calendar embeds.
	 *
	 * @since 6.11.0
	 *
	 * @return void
	 */
	public function enqueue_scripts(): void {
		if ( ! is_singular( Calendar_Embeds::POSTTYPE ) ) {
			return;
		}

tribe_asset_enqueue_group( Event_Assets::$group_key );

/**
		 * Fires when the calendar embeds scripts are enqueued.
		 *
		 * Applicable to frontend and only singular screen.
		 *
		 * @since 6.11.0
		 */
		do_action( 'tec_events_calendar_embeds_enqueue_scripts' );
	}

/**
	 * Overwrites the content of the calendar embeds.
	 *
	 * @since 6.11.0
	 *
	 * @param string $content The content.
	 *
	 * @return string
	 */
	public function overwrite_content( string $content ): string {
		if ( ! is_singular( Calendar_Embeds::POSTTYPE ) ) {
			return $content;
		}

if ( post_password_required() ) {
			return $content;
		}

$calendar_embed_id = get_the_ID();

return $this->template->template(
			'content',
			[
				'calendar_embed_id' => $calendar_embed_id,
				'event_categories'  => Calendar_Embeds::get_event_categories( $calendar_embed_id ),
				'event_tags'        => Calendar_Embeds::get_tags( $calendar_embed_id ),
			],
			false
		);
	}

/**
	 * Overwrites the embed template for the calendar embeds.
	 *
	 * @since 6.11.0
	 *
	 * @param string $template The template.
	 *
	 * @return string
	 */
	public function overwrite_embed_template( string $template ): string {
		if ( ! is_embed() ) {
			return $template;
		}

if ( ! is_singular( Calendar_Embeds::POSTTYPE ) ) {
			return $template;
		}

return $this->template->get_template_file( 'embed' );
	}

/**
	 * Register assets for the Calendar Embeds singular Frontend page.
	 *
	 * @since 6.11.0
	 *
	 * @return void
	 */
	protected function register_assets(): void {
		Asset::add(
			'tec-events-calendar-embeds-frontend-script',
			'js/calendar-embeds/page.js'
		)
			->add_to_group_path( TEC::class )
			->enqueue_on( 'tec_events_calendar_embeds_enqueue_scripts' )
			->set_dependencies( 'jquery', 'tribe-events-views-v2-manager', 'wp-hooks' )
			->in_footer()
			->register();

Asset::add(
			'tec-events-calendar-embeds-frontend-style',
			'css/calendar-embeds/page.css'
		)
			->add_to_group_path( TEC::class )
			->enqueue_on( 'tec_events_calendar_embeds_enqueue_scripts' )
			->register();
	}
}