<?php
/**
 * REST API Order Notes controller
 *
 * Handles requests to the /orders/<order_id>/notes endpoint.
 *
 * @author   WooThemes
 * @category API
 * @package  WooCommerce/API
 * @since    2.6.0
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * REST API Order Notes controller class.
 *
 * @package WooCommerce/API
 * @extends WC_REST_ControllerWC_REST_Order_Notes_V1_Controller
 */
class WC_REST_Order_Notes_Controller extends WC_REST_Order_Notes_V1_Controller {

	/**
	 * Endpoint namespace.
	 *
	 * @var string
	 */
	protected $namespace = 'wc/v2';

	/**
	 * Get order notes from an order.
	 *
	 * @param WP_REST_Request $request
	 * @return array
	 */
	public function get_items( $request ) {
		$order = wc_get_order( (int) $request['order_id'] );

		if ( ! $order || $this->post_type !== $order->get_type() ) {
			return new WP_Error( "woocommerce_rest_{$this->post_type}_invalid_id", __( 'Invalid order ID.', 'woocommerce' ), array( 'status' => 404 ) );
		}

		$args = array(
			'post_id' => $order->get_id(),
			'approve' => 'approve',
			'type'    => 'order_note',
		);

		// Allow filter by order note type.
		if ( 'customer' === $request['type'] ) {
			$args['meta_query'] = array(
				array(
					'key'     => 'is_customer_note',
					'value'   => 1,
					'compare' => '=',
				),
			);
		} elseif ( 'internal' === $request['type'] ) {
			$args['meta_query'] = array(
				array(
					'key'     => 'is_customer_note',
					'compare' => 'NOT EXISTS',
				),
			);
		}

		remove_filter( 'comments_clauses', array( 'WC_Comments', 'exclude_order_comments' ), 10, 1 );

		$notes = get_comments( $args );

		add_filter( 'comments_clauses', array( 'WC_Comments', 'exclude_order_comments' ), 10, 1 );

		$data = array();
		foreach ( $notes as $note ) {
			$order_note = $this->prepare_item_for_response( $note, $request );
			$order_note = $this->prepare_response_for_collection( $order_note );
			$data[]     = $order_note;
		}

		return rest_ensure_response( $data );
	}

	/**
	 * Get the query params for collections.
	 *
	 * @return array
	 */
	public function get_collection_params() {
		$params            = array();
		$params['context'] = $this->get_context_param( array( 'default' => 'view' ) );
		$params['type']    = array(
			'default'           => 'any',
			'description'       => __( 'Limit result to customers or internal notes.', 'woocommerce' ),
			'type'              => 'string',
			'enum'              => array( 'any', 'customer', 'internal' ),
			'sanitize_callback' => 'sanitize_key',
			'validate_callback' => 'rest_validate_request_arg',
		);

		return $params;
	}
}