<?php

namespace Mintall_Keep\Api;

defined( 'ABSPATH' ) || exit;

use Mintall_Keep\Services\Mintall_Promo;

class REST_Promo extends REST_Controller {

	public function register_routes() {
		register_rest_route(
			self::NAMESPACE,
			'/promo/validate',
			[
				'methods'             => 'POST',
				'callback'            => [ $this, 'validate_promo' ],
				'permission_callback' => [ $this, 'check_permission' ],
				'args'                => [
					'code'         => [
						'required' => true,
						'type'     => 'string',
					],
					'plan'         => [
						'required' => true,
						'type'     => 'string',
					],
					'plan_variant' => [
						'required' => false,
						'type'     => 'string',
					],
				],
			]
		);
	}

	/**
	 * POST /mintall/v1/promo/validate
	 */
	public function validate_promo( $request ) {
		$api_key = $this->get_api_key();
		if ( is_wp_error( $api_key ) ) {
			return $api_key;
		}

		$code         = sanitize_text_field( $request->get_param( 'code' ) );
		$plan         = sanitize_text_field( $request->get_param( 'plan' ) );
		$plan_variant = sanitize_text_field( $request->get_param( 'plan_variant' ) );

		$result = Mintall_Promo::validate(
			$api_key,
			[
				'code'         => $code,
				'plan'         => $plan,
				'plan_variant' => $plan_variant,
				'currency'     => get_woocommerce_currency(),
				'shop_domain'  => wp_parse_url( home_url(), PHP_URL_HOST ),
			]
		);

		if ( is_wp_error( $result ) ) {
			$error_data = $result->get_error_data();
			$detail     = $result->get_error_message();

			$error_messages = [
				'PROMO_CODE_INVALID'            => 'Promo code not found.',
				'PROMO_CODE_INACTIVE'           => 'Promo code is not active.',
				'PROMO_CODE_EXPIRED'            => 'Promo code has expired.',
				'PROMO_CODE_NOT_APPLICABLE'     => 'Promo code does not apply to this plan.',
				'PROMO_CODE_LIMIT_REACHED'      => 'Promo code redemption limit reached.',
				'PLATFORM_ACCOUNT_UNAUTHORIZED' => 'Account not authorized for promo codes.',
			];

			$message = $error_messages[ $detail ] ?? $detail ?: 'Promo code is invalid.';
			return $this->error_response( $message );
		}

		return new \WP_REST_Response( $result );
	}
}