<?php
namespace AIOSEO\BrokenLinkChecker\Api;

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

use AIOSEO\BrokenLinkChecker\Models;

/**
 * Handles link status/link row edit updates.
 *
 * @since 1.1.0
 */
class EditRow extends CommonTableActions {
	/**
	 * Edits the given link status/link row.
	 *
	 * @since 1.1.0
	 *
	 * @param  \WP_REST_Request  $request The request
	 * @return \WP_REST_Response          The response.
	 */
	public static function update( $request ) {
		$body         = $request->get_json_params();
		$linkStatusId = ! empty( $body['linkStatusId'] ) ? intval( $body['linkStatusId'] ) : null;
		$linkId       = ! empty( $body['linkId'] ) ? intval( $body['linkId'] ) : null;
		if ( empty( $linkStatusId ) && empty( $linkId ) ) {
			return new \WP_REST_Response( [
				'success' => false,
				'message' => 'No link status or link ID ID was provided.'
			], 400 );
		}

		$newUrl    = ! empty( $body['url'] ) ? sanitize_text_field( $body['url'] ) : '';
		$newAnchor = ! empty( $body['anchor'] ) ? sanitize_text_field( $body['anchor'] ) : '';
		if ( empty( $newUrl ) && empty( $newAnchor ) ) {
			return new \WP_REST_Response( [
				'success' => false,
				'message' => 'No new URL or anchor was provided.'
			], 400 );
		}

		// If a link status ID was provided, then we need to update the URL for each link related to this link status.
		if ( $linkStatusId ) {
			$links = Models\Link::getByLinkStatusId( $linkStatusId );
			foreach ( $links as $link ) {
				$post = get_post( $link->post_id );

				// Skip orphaned links whose post no longer exists.
				if ( ! is_a( $post, 'WP_Post' ) ) {
					$link->delete();

					continue;
				}

				// Confirm user has permission to edit the post.
				if ( ! current_user_can( 'edit_post', $link->post_id ) ) {
					return new \WP_REST_Response( [
						'success' => false,
						'message' => 'User does not have permission to edit this post.'
					], 403 );
				}

				self::updateLink( $link->id, '', $newUrl );
			}
		}

		if ( $linkId ) {
			$link = Models\Link::getById( $linkId );
			if ( ! $link->exists() ) {
				return new \WP_REST_Response( [
					'success' => false,
					'message' => 'Link not found.'
				], 404 );
			}

			// Confirm user has permission to edit the post.
			if ( ! current_user_can( 'edit_post', $link->post_id ) ) {
				return new \WP_REST_Response( [
					'success' => false,
					'message' => 'User does not have permission to edit this post.'
				], 403 );
			}

			self::updateLink( $linkId, $newAnchor, $newUrl );
		}

		return new \WP_REST_Response( [
			'success' => true
		], 200 );
	}
}