<?php
/**
 * @package Polylang-Pro
 */

/**
 * Manages compatibility with the Divi Builder.
 *
 * @since 2.3
 */
class PLL_Divi_Builder {
	/**
	 * Whether the current post is being saved.
	 * Helps prevent infinite recursion when saving the post while Divi 5 calls `use_block_editor_for_post` in @see{ET_Builder_Block_Editor_Integration::convert_divi_blocks_before_save}.
	 *
	 * @var bool
	 */
	private $is_saving_current_post = false;

	/**
	 * Constructor.
	 *
	 * @since 2.3
	 */
	public function __construct() {
		add_filter( 'pll_copy_post_metas', array( $this, 'divi_builder_copy_post_metas' ), 10, 2 );
		add_filter( 'use_block_editor_for_post', array( $this, 'persist_draft_in_database' ), 4000 ); // After `PLL_Duplicate_Action::new_post_translation()`.
	}

	/**
	 * Allow to copy Divi Builder data when creating a translation.
	 *
	 * @since 2.1
	 *
	 * @param array $metas List of custom fields names.
	 * @param bool  $sync  True if it is synchronization, false if it is a copy.
	 * @return array
	 */
	public function divi_builder_copy_post_metas( $metas, $sync ) {
		$divi_metas = array(
			'_et_pb_post_hide_nav',
			'_et_pb_page_layout',
			'_et_pb_side_nav',
			'_et_pb_use_builder',
			'_et_pb_ab_bounce_rate_limit',
			'_et_pb_ab_stats_refresh_interval',
			'_et_pb_old_content',
			'_et_pb_enable_shortcode_tracking',
			'_et_pb_custom_css',
			'_et_pb_light_text_color',
			'_et_pb_dark_text_color',
			'_et_pb_content_area_background_color',
			'_et_pb_section_background_color',
		);

		return $sync ? $metas : array_merge( $metas, $divi_metas );
	}

	/**
	 * Persists the draft in the database to allow duplication in Divi Builder.
	 *
	 * @since 3.7.5
	 *
	 * @global WP_Post $post The current post object.
	 *
	 * @param bool $is_block_editor Whether the post can be edited or not with the block editor.
	 * @return bool
	 */
	public function persist_draft_in_database( $is_block_editor ) {
		global $post;

		if ( $this->is_saving_current_post ) {
			return $is_block_editor;
		}

		if ( empty( $post ) ) {
			return $is_block_editor;
		}

		$current_screen = get_current_screen();
		if ( $current_screen && $current_screen->is_block_editor() && ( new PLL_Toggle_User_Meta( PLL_Duplicate_Action::META_NAME ) )->is_active() ) {
			$this->is_saving_current_post = true;
			wp_update_post( $post );
			$this->is_saving_current_post = false;
		}

		return $is_block_editor;
	}
}