<?php
/**
 * WC REST API Unit Test Case (for WP-API Endpoints).
 *
 * Provides REST API specific methods and setup/teardown.
 *
 * @package WooCommerce\Tests
 * @since 3.0
 */

/**
 * Base class for REST related unit test classes.
 */
class WC_REST_Unit_Test_Case extends WC_Unit_Test_Case {

	/**
	 * @var WP_REST_Server
	 */
	protected $server;

	/**
	 * Setup our test server.
	 */
	public function setUp() {
		parent::setUp();
		global $wp_rest_server;
		$wp_rest_server = new WP_Test_Spy_REST_Server();
		$this->server   = $wp_rest_server;
		do_action( 'rest_api_init' );

		// Reset payment gateways.
		$gateways                   = WC_Payment_Gateways::instance();
		$gateways->payment_gateways = array();
		$gateways->init();
	}

	/**
	 * Unset the server.
	 */
	public function tearDown() {
		parent::tearDown();
		global $wp_rest_server;
		unset( $this->server );
		$wp_rest_server = null;
	}

	/**
	 * Perform a REST request.
	 *
	 * @param string     $url The endpopint url, if it doesn't start with '/' it'll be prepended with '/wc/v3/'.
	 * @param string     $verb HTTP verb for the request, default is GET.
	 * @param array|null $body_params Body parameters for the request, null if none are required.
	 * @param array|null $query_params Query string parameters for the request, null if none are required.
	 * @return array Result from the request.
	 */
	public function do_rest_request( $url, $verb = 'GET', $body_params = null, $query_params = null ) {
		if ( '/' !== $url[0] ) {
			$url = '/wc/v3/' . $url;
		}

		$request = new WP_REST_Request( $verb, $url );
		if ( ! is_null( $query_params ) ) {
			$request->set_query_params( $query_params );
		}
		if ( ! is_null( $body_params ) ) {
			$request->set_body_params( $body_params );
		}

		return $this->server->dispatch( $request );
	}

	/**
	 * Perform a GET REST request.
	 *
	 * @param string     $url The endpopint url, if it doesn't start with '/' it'll be prepended with '/wc/v3/'.
	 * @param array|null $query_params Query string parameters for the request, null if none are required.
	 * @return WP_REST_Response The response for the request.
	 */
	public function do_rest_get_request( $url, $query_params = null ) {
		return $this->do_rest_request( $url, 'GET', null, $query_params );
	}

	/**
	 * Perform a POST REST request.
	 *
	 * @param string     $url The endpopint url, if it doesn't start with '/' it'll be prepended with '/wc/v3/'.
	 * @param array|null $body_params Body parameters for the request, null if none are required.
	 * @param array|null $query_params Query string parameters for the request, null if none are required.
	 * @return array Result from the request.
	 */
	public function do_rest_post_request( $url, $body_params = null, $query_params = null ) {
		return $this->do_rest_request( $url, 'POST', $body_params, $query_params );
	}

	/**
	 * Perform a PUT REST request.
	 *
	 * @param string     $url The endpopint url, if it doesn't start with '/' it'll be prepended with '/wc/v3/'.
	 * @param array|null $body_params Body parameters for the request, null if none are required.
	 * @param array|null $query_params Query string parameters for the request, null if none are required.
	 * @return array Result from the request.
	 */
	public function do_rest_put_request( $url, $body_params = null, $query_params = null ) {
		return $this->do_rest_request( $url, 'PUT', $body_params, $query_params );
	}
}