<?php
/**
 * Page builders: Elementor, Divi 4/5, Bricks, Beaver Builder, Oxygen and Breakdance integrations
 * (each guarded by class_exists / defined checks). Builder elements come from the element registry
 * (Frontend\\Elements); add-ons add elements there and their widget / module classes through filters.
 *
 * @package StreamSera
 */

namespace StreamSera\Modules;

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

class Page_Builders {

	/**
	 * Register.
	 */
	public function register() {
		// Builders register their element types late; wait for everything to load.
		add_action( 'init', array( $this, 'boot' ), 20 );
		// Divi 5 builds its module list while the theme loads (before init): its hooks go in now.
		\StreamSera\Integrations\Builders\Divi5::hooks();
	}

	/**
	 * Boot every integration whose builder is active.
	 */
	public function boot() {
		$integrations = array(
			\StreamSera\Integrations\Builders\Elementor::class,
			\StreamSera\Integrations\Builders\Bricks::class,
			\StreamSera\Integrations\Builders\Divi::class,
			\StreamSera\Integrations\Builders\Beaver_Builder::class,
			\StreamSera\Integrations\Builders\Oxygen::class,
			\StreamSera\Integrations\Builders\Breakdance::class,
		);
		/**
		 * Filter the page-builder integrations.
		 *
		 * @param string[] $integrations Class names with a static boot().
		 */
		foreach ( apply_filters( 'streamsera_builder_integrations', $integrations ) as $class ) {
			if ( class_exists( $class ) && is_callable( array( $class, 'boot' ) ) ) {
				$class::boot();
			}
		}
	}

	/**
	 * Shortcode tags builders with signed / whitelisted shortcodes (Oxygen, Breakdance) may render.
	 *
	 * @return string[]
	 */
	public static function shortcodes() {
		/**
		 * Filter the StreamSera shortcode tags page builders may render unsigned (add-ons add theirs).
		 *
		 * @param string[] $tags Shortcode tags.
		 */
		return array_values( array_unique( (array) apply_filters( 'streamsera_builder_shortcodes', array( 'streamsera', 'streamsera_now_playing', 'streamsera_listen_button', 'streamsera_station', 'streamsera_stations' ) ) ) );
	}

	/**
	 * Shared option lists for builder controls.
	 *
	 * @return array { players: id → title, layouts: id → label }
	 */
	public static function options() {
		$players = array();
		foreach ( get_posts( array( 'post_type' => \StreamSera\PostTypes\Player::POST_TYPE, 'post_status' => 'publish', 'posts_per_page' => 100, 'orderby' => 'title', 'order' => 'ASC' ) ) as $p ) {
			$players[ $p->ID ] = streamsera_plain_title( $p );
		}
		$layouts = array( '' => __( 'Player default', 'streamsera' ) );
		foreach ( streamsera_layouts() as $id => $layout ) {
			$layouts[ $id ] = is_array( $layout ) ? ( $layout['label'] ?? $id ) : (string) $layout;
		}
		return array( 'players' => $players, 'layouts' => $layouts );
	}

	/**
	 * Render a player for a builder (never fatal, editor-friendly notice).
	 *
	 * @param int    $player_id Player.
	 * @param string $layout    Layout.
	 * @return string
	 */
	public static function render( $player_id, $layout = '' ) {
		$player_id = (int) $player_id;
		if ( ! $player_id ) {
			return self::notice( __( 'StreamSera: choose a player.', 'streamsera' ) );
		}
		// Unknown / unpublished / deleted player: tell editors, render nothing for visitors.
		if ( \StreamSera\PostTypes\Player::POST_TYPE !== get_post_type( $player_id ) || 'publish' !== get_post_status( $player_id ) ) {
			return self::notice( __( 'StreamSera: player not found.', 'streamsera' ) );
		}
		$html = streamsera_render_player( $player_id, array_filter( array( 'layout' => $layout ) ) );
		// Core returns an inline notice (no station, …) for editors; never leak it to visitors.
		if ( ! self::can_see_notices() && false !== strpos( $html, 'class="streamsera-notice"' ) ) {
			return '';
		}
		return $html;
	}

	/**
	 * Whether builder notices may be shown (editors, or inside a builder's editor/preview).
	 *
	 * @return bool
	 */
	public static function can_see_notices() {
		if ( current_user_can( 'edit_posts' ) ) {
			return true;
		}
		if ( class_exists( '\\Elementor\\Plugin' ) && isset( \Elementor\Plugin::$instance ) ) {
			$elementor = \Elementor\Plugin::$instance;
			if ( ( isset( $elementor->editor ) && $elementor->editor->is_edit_mode() ) || ( isset( $elementor->preview ) && $elementor->preview->is_preview_mode() ) ) {
				return true;
			}
		}
		if ( function_exists( 'et_core_is_fb_enabled' ) && et_core_is_fb_enabled() ) {
			return true;
		}
		return false;
	}

	/**
	 * Editor-only notice.
	 *
	 * @param string $message Message.
	 * @return string
	 */
	private static function notice( $message ) {
		return self::can_see_notices() ? '<div class="streamsera-notice">' . esc_html( $message ) . '</div>' : '';
	}
}