<?php
/**
 * C-02 Pre-publish checks (Free part: detection in the block editor).
 *
 * @package ForensixDigital
 */

declare(strict_types=1);

namespace ForensixDigital\Apps\PreCheck;

defined( 'ABSPATH' ) || exit;

use ForensixDigital\Apps\AppDefinition;
use ForensixDigital\Apps\AppInterface;
use ForensixDigital\Apps\Business\BusinessConfig;
use ForensixDigital\Services\Entitlements\Edition;
use ForensixDigital\Rest\Api;

/**
 * Adds a panel to the block editor's pre-publish step that lists what is worth a second look in
 * the draft: empty title, placeholder text, images without description, skipped heading levels,
 * empty links, dates that have passed, contact details that differ from the business details.
 * It only advises and never blocks publishing or changes the draft.
 */
final class PreCheckApp implements AppInterface {

	public const ID = 'precheck';

	/**
	 * Registry entry.
	 */
	public static function definition(): AppDefinition {
		return new AppDefinition(
			array(
				'id'                   => self::ID,
				'name'                 => __( 'Pre-publish check', 'forensix-digital' ),
				'description'          => __( 'Before you publish in the block editor, shows what is worth a second look: an empty title, placeholder text, images without a description, skipped heading levels, links without an address, dates that have passed. It only advises, never blocks publishing, and never changes your text.', 'forensix-digital' ),
				'category'             => 'content',
				'edition'              => Edition::FREE,
				'dependencies'         => array(),
				'features'             => array(
					'C-02' => Edition::FREE,
				),
				'deactivation_effects' => array(
					__( 'The panel disappears from the editor. Your pages and posts are not changed.', 'forensix-digital' ),
				),
				'factory'              => static fn(): self => new self(),
			)
		);
	}

	/**
	 * Hooks the app while it is active.
	 */
	public function register(): void {
		add_action( 'rest_api_init', array( $this, 'register_routes' ) );
		add_action( 'enqueue_block_editor_assets', array( $this, 'enqueue' ) );
	}

	/**
	 * Nothing to set up.
	 */
	public function activate(): void {}

	/**
	 * Removes the panel.
	 */
	public function deactivate(): void {
		remove_action( 'rest_api_init', array( $this, 'register_routes' ) );
		remove_action( 'enqueue_block_editor_assets', array( $this, 'enqueue' ) );
	}

	/**
	 * Nothing stored.
	 */
	public function delete_data(): void {}

	/**
	 * POST forensix/v1/precheck.
	 */
	public function register_routes(): void {
		register_rest_route(
			Api::NAMESPACE,
			'/precheck',
			array(
				'methods'             => 'POST',
				'callback'            => array( $this, 'check' ),
				'permission_callback' => static fn(): bool => current_user_can( 'edit_posts' ),
				'args'                => array(
					'title'    => array(
						'type'    => 'string',
						'default' => '',
					),
					'content'  => array(
						'type'    => 'string',
						'default' => '',
					),
					'type'     => array(
						'type'    => 'string',
						'default' => 'post',
					),
					'featured' => array(
						'type'    => 'boolean',
						'default' => false,
					),
				),
			)
		);
	}

	/**
	 * Checks a draft.
	 *
	 * @param \WP_REST_Request $request Request.
	 */
	public function check( \WP_REST_Request $request ): \WP_REST_Response {
		// The Business details app provides its details through this filter while it is active.
		$profile = apply_filters( 'forensix_business_details', null );
		$profile = is_array( $profile ) && BusinessConfig::has_contacts( $profile ) ? $profile : null;
		$notes   = PreCheckRules::notes(
			array(
				'title'    => substr( (string) $request['title'], 0, 1000 ),
				'content'  => substr( (string) $request['content'], 0, 500000 ),
				'type'     => sanitize_key( (string) $request['type'] ),
				'featured' => (bool) $request['featured'],
			),
			$profile,
			(string) wp_parse_url( home_url(), PHP_URL_HOST ),
			time()
		);
		return new \WP_REST_Response( array( 'notes' => $notes ), 200 );
	}

	/**
	 * Loads the editor panel.
	 */
	public function enqueue(): void {
		wp_enqueue_script(
			'fxd-precheck',
			FORENSIX_URL . 'admin/editor/precheck.js',
			array( 'wp-plugins', 'wp-edit-post', 'wp-element', 'wp-components', 'wp-data', 'wp-api-fetch', 'wp-i18n', 'wp-hooks' ),
			FORENSIX_VERSION,
			true
		);
		wp_set_script_translations( 'fxd-precheck', 'forensix-digital', FORENSIX_PATH . 'languages' );
	}
}