<?php
/**
 * Registration in the existing plugin bootstrap; plain local JS like W1.
 *
 * @package Waitlistize
 */
namespace Waitlistize\Rendering;

use Waitlistize\Api\Services;

final class Embeds {
	public function register(): void {
		wp_register_script( 'waitlistize-booking', plugins_url( 'assets/js/booking.js', WAITLISTIZE_FILE ), array(), WAITLISTIZE_VERSION . '-weekly-group', true );
		wp_register_style( 'waitlistize-booking', plugins_url( 'assets/css/booking.css', WAITLISTIZE_FILE ), array(), WAITLISTIZE_VERSION . '-weekly-group' );
		wp_register_script( 'waitlistize-embeds-editor', plugins_url( 'assets/js/embeds-editor.js', WAITLISTIZE_FILE ), array( 'wp-blocks', 'wp-element', 'wp-block-editor', 'wp-components', 'wp-api-fetch', 'wp-i18n' ), WAITLISTIZE_VERSION . '-default-resource', true );
		wp_set_script_translations( 'waitlistize-embeds-editor', 'waitlistize' );
		wp_register_style( 'waitlistize-embeds', plugins_url( 'assets/css/embeds.css', WAITLISTIZE_FILE ), array(), WAITLISTIZE_VERSION );
		$metadata = array();
		wp_add_inline_script( 'waitlistize-embeds-editor', 'var WaitlistizeDisplayDefaults = ' . wp_json_encode( \Waitlistize\Admin\DisplayDefaults::values() ) . ';', 'before' );
		foreach ( array( 'booking', 'services' ) as $kind ) {
			// phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- Reads bundled local block metadata, never a URL.
			$metadata[ $kind ] = json_decode( file_get_contents( dirname( WAITLISTIZE_FILE ) . '/blocks/' . $kind . '/block.json' ), true );
		}
		wp_add_inline_script( 'waitlistize-embeds-editor', 'var WaitlistizeEmbedBlocks = ' . wp_json_encode( $metadata ) . ';', 'before' );
		$renderer = new EmbedRenderer();
		foreach ( array( 'booking', 'services' ) as $kind ) {
			register_block_type( dirname( WAITLISTIZE_FILE ) . '/blocks/' . $kind, array( 'render_callback' => static fn ( $attributes ) => $renderer->render( $kind, $attributes ) ) );
		}
		add_shortcode( 'waitlistize', array( $renderer, 'shortcode' ) );
	}

	/** Bind only newly authored bare shortcodes on an explicit, permitted content save.
	 * Existing unbound occurrences and explicit zero/other bindings are never retargeted.
	 */
	public function save( array $data, array $postarr ): array {
		if ( ! current_user_can( 'edit_posts' ) && ! current_user_can( 'edit_pages' ) ) {
			return $data;
		}
		if ( ! empty( $postarr['ID'] ) && ! current_user_can( 'edit_post', (int) $postarr['ID'] ) ) {
			return $data;
		}
		if ( 'revision' === ( $data['post_type'] ?? '' ) || ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) ) {
			return $data;
		}
		$account_id = ( new Services() )->account_id();
		if ( ! $account_id ) {
			return $data;
		}
		$old     = ! empty( $postarr['ID'] ) ? (string) get_post_field( 'post_content', (int) $postarr['ID'], 'raw' ) : '';
		$pattern = '/' . get_shortcode_regex( array( 'waitlistize' ) ) . '/s';
		preg_match_all( $pattern, $old, $old_shortcodes, PREG_SET_ORDER );
		foreach ( $old_shortcodes as $old_shortcode ) {
			$old_attributes = shortcode_parse_atts( $old_shortcode[3] );
			if ( '[' !== $old_shortcode[1] && ']' !== $old_shortcode[6] && ! isset( $old_attributes['connection_account_id'] ) ) {
				// An old unknown binding must stay unknown even if its text is edited.
				// Use the admin generator for explicitly bound additions on such pages.
				return $data;
			}
		}
		$content              = wp_unslash( $data['post_content'] ?? '' );
		$content              = preg_replace_callback(
			$pattern,
			static function ( $shortcode_match ) use ( $account_id ) {
				$parsed = shortcode_parse_atts( $shortcode_match[3] );
				if ( '[' === $shortcode_match[1] || ']' === $shortcode_match[6] || ! is_array( $parsed ) || isset( $parsed['connection_account_id'] ) || is_wp_error( Attributes::shortcode( $parsed ) ) ) {
					return $shortcode_match[0];
				}
				return preg_replace( '/\A\[waitlistize\b/', '[waitlistize connection_account_id="' . $account_id . '"', $shortcode_match[0], 1 );
			},
			$content
		);
		$data['post_content'] = wp_slash( $content );
		return $data;
	}
}