<?php

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/**

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* REST API Experiment Controller

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*

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* Handles requests to /experiment

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*/

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namespace Automattic\WooCommerce\Admin\API;

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defined( 'ABSPATH' ) || exit;

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/**

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* Data controller.

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*

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* @extends WC_REST_Data_Controller

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*/

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class Experiments extends \WC_REST_Data_Controller {

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/**

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* Endpoint namespace.

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*

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* @var string

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*/

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protected $namespace = 'wc-admin';

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/**

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* Route base.

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*

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* @var string

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*/

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protected $rest_base = 'experiments';

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/**

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* Register routes.

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*/

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public function register_routes() {

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register_rest_route(

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$this->namespace,

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'/' . $this->rest_base . '/assignment',

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array(

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array(

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'methods' => \WP_REST_Server::READABLE,

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'callback' => array( $this, 'get_assignment' ),

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'permission_callback' => array( $this, 'get_item_permissions_check' ),

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),

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'schema' => array( $this, 'get_public_item_schema' ),

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)

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);

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}

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/**

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* Forward the experiment request to WP.com and return the WP.com response.

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*

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* @param \WP_REST_Request $request Request data.

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*

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* @return \WP_Error|\WP_REST_Response

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*/

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public function get_assignment( $request ) {

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$args = $request->get_query_params();

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if ( ! isset( $args['experiment_name'] ) ) {

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return new \WP_Error(

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'woocommerce_rest_experiment_name_required',

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__( 'Sorry, experiment_name is required.', 'woocommerce' ),

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array( 'status' => 400 )

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);

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}

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unset( $args['rest_route'] );

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$abtest = new \WooCommerce\Admin\Experimental_Abtest(

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$request->get_param( 'anon_id' ) ?? '',

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'woocommerce',

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true, // set consent to true here since frontend has checked it already.

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true // set true to send request as auth user.

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);

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$response = $abtest->request_assignment( $args );

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if ( is_wp_error( $response ) ) {

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return $response;

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}

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return json_decode( $response['body'], true );

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}

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}

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