get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array( 'timeout' => 5 ),
			null,
			'wpcom'
		);
	}

	/**
	 * Get site plan usage.
	 *
	 * @param WP_REST_Request $req The request object.
	 *
	 * @return array
	 */
	public function get_site_plan_usage( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/jetpack-stats/usage?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array( 'timeout' => 5 ),
			null,
			'wpcom'
		);
	}

	/**
	 * Whether site has never published post.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function site_has_never_published_post( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/site-has-never-published-post?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_params()
				)
			),
			'v2',
			array( 'timeout' => 5 ),
			null,
			'wpcom'
		);
	}

	/**
	 * Get detailed WordAds earnings information for the site.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_wordads_earnings( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/wordads/earnings?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_params()
				)
			),
			'v1.1',
			array( 'timeout' => 5 )
		);
	}

	/**
	 * Get WordAds stats for the site.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_wordads_stats( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/wordads/stats?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_params()
				)
			),
			'v1.1',
			array( 'timeout' => 5 )
		);
	}

	/**
	 * Get Email stats as a list.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_email_stats_list( $req ) {
		switch ( $req->get_param( 'resource' ) ) {
			case 'summary':
				return WPCOM_Client::request_as_blog_cached(
					sprintf(
						'/sites/%d/stats/emails/%s?%s',
						Jetpack_Options::get_option( 'id' ),
						$req->get_param( 'resource' ),
						$this->filter_and_build_query_string(
							$req->get_params()
						)
					),
					'v1.1',
					array( 'timeout' => 5 )
				);
			default:
				return $this->get_forbidden_error();
		}
	}

	/**
	 * Get Email opens stats for a single post.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_email_opens_stats_single( $req ) {
		switch ( $req->get_param( 'resource' ) ) {
			case 'client':
			case 'device':
			case 'country':
			case 'rate':
				return WPCOM_Client::request_as_blog_cached(
					sprintf(
						'/sites/%d/stats/opens/emails/%d/%s?%s',
						Jetpack_Options::get_option( 'id' ),
						$req->get_param( 'post_id' ),
						$req->get_param( 'resource' ),
						$this->filter_and_build_query_string(
							$req->get_params()
						)
					),
					'v1.1',
					array( 'timeout' => 5 )
				);
			default:
				return $this->get_forbidden_error();
		}
	}

	/**
	 * Get Email clicks stats for a single post.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_email_clicks_stats_single( $req ) {
		switch ( $req->get_param( 'resource' ) ) {
			case 'client':
			case 'device':
			case 'country':
			case 'rate':
			case 'link':
			case 'user-content-link':
				return WPCOM_Client::request_as_blog_cached(
					sprintf(
						'/sites/%d/stats/clicks/emails/%d/%s?%s',
						Jetpack_Options::get_option( 'id' ),
						$req->get_param( 'post_id' ),
						$req->get_param( 'resource' ),
						$this->filter_and_build_query_string(
							$req->get_params()
						)
					),
					'v1.1',
					array( 'timeout' => 5 )
				);
			default:
				return $this->get_forbidden_error();
		}
	}

	/**
	 * Get Email stats time series.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_email_stats_time_series( $req ) {
		switch ( $req->get_param( 'resource' ) ) {
			case 'opens':
			case 'clicks':
				return WPCOM_Client::request_as_blog_cached(
					sprintf(
						'/sites/%d/stats/%s/emails/%d?%s',
						Jetpack_Options::get_option( 'id' ),
						$req->get_param( 'resource' ),
						$req->get_param( 'post_id' ),
						$this->filter_and_build_query_string(
							$req->get_params()
						)
					),
					'v1.1',
					array( 'timeout' => 5 )
				);
			default:
				return $this->get_forbidden_error();
		}
	}

	/**
	 * Get UTM stats time series.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_utm_stats_time_series( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/stats/utm/%s?%s',
				Jetpack_Options::get_option( 'id' ),
				$req->get_param( 'utm_params' ),
				$this->filter_and_build_query_string(
					$req->get_params()
				)
			),
			'v1.1',
			array( 'timeout' => 10 )
		);
	}

	/**
	 * Get Devices stats time series.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_devices_stats_time_series( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/stats/devices/%s?%s',
				Jetpack_Options::get_option( 'id' ),
				$req->get_param( 'device_property' ),
				$this->filter_and_build_query_string(
					$req->get_params()
				)
			),
			'v1.1',
			array( 'timeout' => 10 )
		);
	}

	/**
	 * Dismiss or delay stats notices.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function update_notice_status( $req ) {
		return ( new Notices() )->update_notice( $req->get_param( 'id' ), $req->get_param( 'status' ), $req->get_param( 'postponed_for' ) );
	}

	/**
	 * Get stats notices.
	 *
	 * @return array
	 */
	public function get_notice_status() {
		return ( new Notices() )->get_notices_to_show();
	}

	/**
	 * Mark a referrer as spam.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function mark_referrer_spam( $req ) {
		return WPCOM_Client::request_as_blog(
			sprintf(
				'/sites/%d/stats/referrers/spam/new?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v1.1',
			array(
				'timeout' => 5,
				'method'  => 'POST',
			)
		);
	}

	/**
	 * Unmark a referrer as spam.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function unmark_referrer_spam( $req ) {
		return WPCOM_Client::request_as_blog(
			sprintf(
				'/sites/%d/stats/referrers/spam/delete?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v1.1',
			array(
				'timeout' => 5,
				'method'  => 'POST',
			)
		);
	}

	/**
	 * Toggle modules on dashboard.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function update_dashboard_modules( $req ) {
		// Clear dashboard modules cache.
		delete_transient( static::JETPACK_STATS_DASHBOARD_MODULES_CACHE_KEY );
		return WPCOM_Client::request_as_blog(
			sprintf(
				'/sites/%d/jetpack-stats-dashboard/modules?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array(
				'timeout' => 5,
				'method'  => 'POST',
				'headers' => array( 'Content-Type' => 'application/json' ),
			),
			$req->get_body(),
			'wpcom'
		);
	}

	/**
	 * Get modules on dashboard.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_dashboard_modules( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/jetpack-stats-dashboard/modules?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array(
				'timeout' => 5,
			),
			null,
			'wpcom',
			true,
			static::JETPACK_STATS_DASHBOARD_MODULES_CACHE_KEY
		);
	}

	/**
	 * Update module settings on dashboard.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function update_dashboard_module_settings( $req ) {
		// Clear dashboard modules cache.
		delete_transient( static::JETPACK_STATS_DASHBOARD_MODULE_SETTINGS_CACHE_KEY );
		return WPCOM_Client::request_as_blog(
			sprintf(
				'/sites/%d/jetpack-stats-dashboard/module-settings?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array(
				'timeout' => 5,
				'method'  => 'POST',
				'headers' => array( 'Content-Type' => 'application/json' ),
			),
			$req->get_body(),
			'wpcom'
		);
	}

	/**
	 * Get module settings on dashboard.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function get_dashboard_module_settings( $req ) {
		return WPCOM_Client::request_as_blog_cached(
			sprintf(
				'/sites/%d/jetpack-stats-dashboard/module-settings?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array(
				'timeout' => 5,
			),
			null,
			'wpcom',
			true,
			static::JETPACK_STATS_DASHBOARD_MODULE_SETTINGS_CACHE_KEY
		);
	}

	/**
	 * Run commercial classification.
	 *
	 * @param WP_REST_Request $req The request object.
	 * @return array
	 */
	public function run_commercial_classification( $req ) {
		return WPCOM_Client::request_as_blog(
			sprintf(
				'/sites/%d/commercial-classification?%s',
				Jetpack_Options::get_option( 'id' ),
				$this->filter_and_build_query_string(
					$req->get_query_params()
				)
			),
			'v2',
			array(
				'timeout' => 5,
				'method'  => 'POST',
			),
			null,
			'wpcom'
		);
	}

	/**
	 * Return a WP_Error object with a forbidden error.
	 */
	protected function get_forbidden_error() {
		$error_msg = esc_html__(
			'You are not allowed to perform this action.',
			'jetpack-stats-admin'
		);

		return new WP_Error( 'rest_forbidden', $error_msg, array( 'status' => rest_authorization_required_code() ) );
	}

	/**
	 * Filter and build query string from all the requested params.
	 *
	 * @param array $params The params to filter.
	 * @param array $keys_to_unset The keys to unset from the params array.
	 * @return string The filtered and built query string.
	 */
	protected function filter_and_build_query_string( $params, $keys_to_unset = array() ) {
		if ( isset( $params['rest_route'] ) ) {
			unset( $params['rest_route'] );
		}
		if ( ! empty( $keys_to_unset ) && is_array( $keys_to_unset ) ) {
			foreach ( $keys_to_unset as $key ) {
				if ( isset( $params[ $key ] ) ) {
					unset( $params[ $key ] );
				}
			}
		}
		return http_build_query( $params );
	}
}