woothemes/woocommerce

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includes/rest-api/Controllers/Version3/class-wc-rest-data-currencies-controller.php

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<?php
/**
 * REST API Data currencies controller.
 *
 * Handles requests to the /data/currencies endpoint.
 *
 * @package WooCommerce\RestApi
 * @since   3.5.0
 */

defined( 'ABSPATH' ) || exit;

/**
 * REST API Data Currencies controller class.
 *
 * @package WooCommerce\RestApi
 */
class WC_REST_Data_Currencies_Controller extends WC_REST_Data_Controller {

    /**
     * Endpoint namespace.
     *
     * @var string
     */
    protected $namespace = 'wc/v3';

    /**
     * Route base.
     *
     * @var string
     */
    protected $rest_base = 'data/currencies';

    /**
     * Register routes.
     */
    public function register_routes() {
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base,
            array(
                array(
                    'methods'             => WP_REST_Server::READABLE,
                    'callback'            => array( $this, 'get_items' ),
                    'permission_callback' => array( $this, 'get_items_permissions_check' ),
                ),
                'schema' => array( $this, 'get_public_item_schema' ),
            )
        );
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/current',
            array(
                array(
                    'methods'             => WP_REST_Server::READABLE,
                    'callback'            => array( $this, 'get_current_item' ),
                    'permission_callback' => array( $this, 'get_item_permissions_check' ),
                ),
                'schema' => array( $this, 'get_public_item_schema' ),
            )
        );
        register_rest_route(
            $this->namespace,
            '/' . $this->rest_base . '/(?P<currency>[\w-]{3})',
            array(
                array(
                    'methods'             => WP_REST_Server::READABLE,
                    'callback'            => array( $this, 'get_item' ),
                    'permission_callback' => array( $this, 'get_item_permissions_check' ),
                    'args'                => array(
                        'location' => array(
                            'description' => __( 'ISO4217 currency code.', 'woocommerce' ),
                            'type'        => 'string',
                        ),
                    ),
                ),
                'schema' => array( $this, 'get_public_item_schema' ),
            )
        );
    }

    /**
     * Get currency information.
     *
     * @param  string          $code    Currency code.
     * @param  WP_REST_Request $request Request data.
     * @return array|mixed Response data, ready for insertion into collection data.
     */
    public function get_currency( $code, $request ) {
        $currencies = get_woocommerce_currencies();
        $data       = array();

        if ( ! array_key_exists( $code, $currencies ) ) {
            return false;
        }

        $currency = array(
            'code'   => $code,
            'name'   => $currencies[ $code ],
            'symbol' => get_woocommerce_currency_symbol( $code ),
        );

        return $currency;
    }

    /**
     * Return the list of currencies.
     *
     * @param  WP_REST_Request $request Request data.
     * @return WP_Error|WP_REST_Response
     */
    public function get_items( $request ) {
        $currencies = get_woocommerce_currencies();
        foreach ( array_keys( $currencies ) as $code ) {
            $currency = $this->get_currency( $code, $request );
            $response = $this->prepare_item_for_response( $currency, $request );
            $data[]   = $this->prepare_response_for_collection( $response );
        }

        return rest_ensure_response( $data );
    }

    /**
     * Return information for a specific currency.
     *
     * @param  WP_REST_Request $request Request data.
     * @return WP_Error|WP_REST_Response
     */
    public function get_item( $request ) {
        $data = $this->get_currency( strtoupper( $request['currency'] ), $request );
        if ( empty( $data ) ) {
            return new WP_Error( 'woocommerce_rest_data_invalid_currency', __( 'There are no currencies matching these parameters.', 'woocommerce' ), array( 'status' => 404 ) );
        }
        return $this->prepare_item_for_response( $data, $request );
    }

    /**
     * Return information for the current site currency.
     *
     * @param  WP_REST_Request $request Request data.
     * @return WP_Error|WP_REST_Response
     */
    public function get_current_item( $request ) {
        $currency = get_option( 'woocommerce_currency' );
        return $this->prepare_item_for_response( $this->get_currency( $currency, $request ), $request );
    }

    /**
     * Prepare the data object for response.
     *
     * @param object          $item Data object.
     * @param WP_REST_Request $request Request object.
     * @return WP_REST_Response $response Response data.
     */
    public function prepare_item_for_response( $item, $request ) {
        $data     = $this->add_additional_fields_to_object( $item, $request );
        $data     = $this->filter_response_by_context( $data, 'view' );
        $response = rest_ensure_response( $data );

        $response->add_links( $this->prepare_links( $item ) );

        /**
         * Filter currency returned from the API.
         *
         * @param WP_REST_Response $response The response object.
         * @param array            $item     Currency data.
         * @param WP_REST_Request  $request  Request used to generate the response.
         */
        return apply_filters( 'woocommerce_rest_prepare_data_currency', $response, $item, $request );
    }

    /**
     * Prepare links for the request.
     *
     * @param object $item Data object.
     * @return array Links for the given currency.
     */
    protected function prepare_links( $item ) {
        $code  = strtoupper( $item['code'] );
        $links = array(
            'self'       => array(
                'href' => rest_url( sprintf( '/%s/%s/%s', $this->namespace, $this->rest_base, $code ) ),
            ),
            'collection' => array(
                'href' => rest_url( sprintf( '/%s/%s', $this->namespace, $this->rest_base ) ),
            ),
        );

        return $links;
    }


    /**
     * Get the currency schema, conforming to JSON Schema.
     *
     * @return array
     */
    public function get_item_schema() {
        $schema = array(
            '$schema'    => 'http://json-schema.org/draft-04/schema#',
            'title'      => 'data_currencies',
            'type'       => 'object',
            'properties' => array(
                'code'   => array(
                    'type'        => 'string',
                    'description' => __( 'ISO4217 currency code.', 'woocommerce' ),
                    'context'     => array( 'view' ),
                    'readonly'    => true,
                ),
                'name'   => array(
                    'type'        => 'string',
                    'description' => __( 'Full name of currency.', 'woocommerce' ),
                    'context'     => array( 'view' ),
                    'readonly'    => true,
                ),
                'symbol' => array(
                    'type'        => 'string',
                    'description' => __( 'Currency symbol.', 'woocommerce' ),
                    'context'     => array( 'view' ),
                    'readonly'    => true,
                ),
            ),
        );

        return $this->add_additional_fields_schema( $schema );
    }
}