<?php
/**
 * Plugin bootstrap.
 *
 * @package Quotanto
 */

defined( 'ABSPATH' ) || exit;

/**
 * Plugin bootstrap: assets, the block and the other classes.
 */
final class Quotanto_Plugin {

	private const REQUEST_VARS = array( 'quotanto', 'quotanto_accept', 'quotanto_key', 'quotanto_check' );

	/**
	 * The plugin's own values from the URL of this request.
	 *
	 * @var array<string,string>
	 */
	private static array $request_vars = array();

	/**
	 * Hooks the class into WordPress and WooCommerce.
	 */
	public static function init(): void {
		add_action( 'init', array( __CLASS__, 'register_assets_and_block' ) );
		add_filter( 'query_vars', array( __CLASS__, 'add_query_vars' ) );
		add_action( 'parse_request', array( __CLASS__, 'take_request_vars' ) );

		Quotanto_Settings::init();
		Quotanto_Statuses::init();
		Quotanto_Lifecycle::init();
		Quotanto_Emails::init();
		Quotanto_Account::init();
		Quotanto_Abilities::init();
		Quotanto_Request_Form::init();
		Quotanto_Captcha::init();
		Quotanto_Quote::init();
		Quotanto_Catalog::init();
	}

	/**
	 * Lets WordPress read the plugin's own values from the URL.
	 *
	 * @param string[] $vars Public query variables.
	 * @return string[]
	 */
	public static function add_query_vars( array $vars ): array {
		return array_merge( $vars, self::REQUEST_VARS );
	}

	/**
	 * Keeps the plugin's values and takes them out of the page query, so the page itself resolves as it would without them.
	 *
	 * @param WP $wp Current request.
	 */
	public static function take_request_vars( WP $wp ): void {
		foreach ( self::REQUEST_VARS as $name ) {
			if ( isset( $wp->query_vars[ $name ] ) && is_scalar( $wp->query_vars[ $name ] ) ) {
				self::$request_vars[ $name ] = sanitize_text_field( (string) $wp->query_vars[ $name ] );
			}
			unset( $wp->query_vars[ $name ] );
		}
	}

	/**
	 * One of the plugin's values from the URL, or an empty string.
	 *
	 * @param string $name Query variable.
	 */
	public static function request_var( string $name ): string {
		return self::$request_vars[ $name ] ?? '';
	}

	/**
	 * Registers the stylesheet and the Request a quote block.
	 */
	public static function register_assets_and_block(): void {
		wp_register_style( 'quotanto', QUOTANTO_URL . 'assets/quotanto.css', array(), QUOTANTO_VERSION );

		register_block_type_from_metadata(
			QUOTANTO_DIR . 'blocks/request-button',
			array(
				'render_callback' => array( __CLASS__, 'render_block' ),
			)
		);
	}

	/**
	 * Render callback for the "Request a quote" block.
	 *
	 * @param array    $attributes Block attributes.
	 * @param string   $content    Inner content.
	 * @param WP_Block $block      Block instance.
	 */
	public static function render_block( array $attributes, string $content, WP_Block $block ): string {
		$post_id = isset( $block->context['postId'] ) ? (int) $block->context['postId'] : (int) get_the_ID();
		$product = $post_id ? wc_get_product( $post_id ) : false;

		return $product ? Quotanto_Request_Form::render( $product ) : '';
	}
}