<?php
/**
 * Membership Levels Route
 *
 * @package   rcp-rest-api
 * @copyright Copyright (c) 2018, Restrict Content Pro team
 * @license   GPL2+
 * @since     1.1
 */

class RCP_REST_API_Membership_Level_Route_V1 extends RCP_REST_API_Route {

	/**
	 * @var RCP_Levels $db
	 */
	protected $db;

	/**
	 * Get things started
	 *
	 * @access public
	 * @since  1.1
	 * @return void
	 */
	public function init() {
		$this->id = 'levels';
		$this->db = new RCP_Levels();
	}

	/**
	 * Retrieve response data
	 *
	 * @param WP_REST_Request $request
	 *
	 * @access public
	 * @since  1.1
	 * @return RCP_REST_API_Level|WP_Error|WP_REST_Response
	 */
	public function get_data( WP_REST_Request $request ) {

		if ( $request->get_param( 'id' ) ) {

			// Get a single membership level.
			$level = new RCP_REST_API_Level( $request->get_param( 'id' ) );

			if ( empty( $level->id ) ) {
				$level = new WP_Error( 'no_level', __( 'Invalid membership level', 'rcp-rest' ), array( 'status' => 404 ) );
			}

			return $level;

		}

		// Get multiple levels.
		return new WP_REST_Response( $this->get_levels() );

	}

	/**
	 * Create a new membership level.
	 *
	 * @param WP_REST_Request $request
	 *
	 * @access public
	 * @since  1.1
	 * @return WP_REST_Response
	 */
	public function new_post_data( WP_REST_Request $request ) {

		if ( ! $request->get_param( 'name' ) ) {
			$response = new WP_Error( 'missing_name', __( 'No membership level name supplied', 'rcp-rest' ), array( 'status' => 500 ) );
		}

		if ( $request->get_param( 'trial_duration' ) && ( ! $request->get_param( 'price' ) || ! $request->get_param( 'duration' ) ) ) {
			$response = new WP_Error( 'invalid_trial', __( 'Invalid trial configuration. A trial cannot be assigned to a free or lifetime membership.', 'rcp-rest' ), array( 'status' => 500 ) );
		}

		if ( empty( $response ) ) {

			$level    = new RCP_REST_API_Level();
			$args     = $level->sanitize_level_args( $request->get_params() );
			$level_id = $this->db->insert( $args );

			if ( $level_id ) {
				$response = $level_id;
			} else {
				$response = new WP_Error( 'create_failed', __( 'Membership level creation failed', 'rcp-rest' ), array( 'status' => 500 ) );
			}

		}

		return new WP_REST_Response( $response );

	}

	/**
	 * Update an existing membership level.
	 *
	 * @param WP_REST_Request $request
	 *
	 * @access public
	 * @since  1.1
	 * @return WP_REST_Response
	 */
	public function update_post_data( WP_REST_Request $request ) {

		if ( $request->has_param( 'ID' ) ) {
			$request->set_param( 'id', $request->get_param( 'ID' ) );
		}

		if ( ! $request->get_param( 'id' ) ) {
			$response = new WP_Error( 'missing_id', __( 'No membership level ID supplied', 'rcp-rest' ), array( 'status' => 500 ) );

			return new WP_REST_Response( $response );
		}

		$level  = new RCP_REST_API_Level( $request->get_param( 'id' ) );
		$fields = (array) $level;
		$args   = wp_parse_args( $request->get_params(), $fields );
		$args   = $level->sanitize_level_args( $args );

		if ( $this->db->update( $request->get_param( 'id' ), $args ) ) {
			$response = 1;
		} else {
			$response = new WP_Error( 'update_failed', __( 'Update Failed', 'rcp-rest' ), array( 'status' => 500 ) );
		}

		return new WP_REST_Response( $response );

	}

	/**
	 * Delete a membership level.
	 *
	 * @param WP_REST_Request $request
	 *
	 * @access public
	 * @since  1.1
	 * @return WP_REST_Response
	 */
	public function delete_data( WP_REST_Request $request ) {

		if ( $request->has_param( 'ID' ) ) {
			$request->set_param( 'id', $request->get_param( 'ID' ) );
		}

		$this->db->remove( $request->get_param( 'id' ) );

		return new WP_REST_Response( 1 );

	}

	/**
	 * Retrieve membership levels.
	 *
	 * @access private
	 * @since  1.1
	 * @return array
	 */
	private function get_levels() {

		$args = wp_parse_args( $this->query_args, array(
			'status'  => 'all',
			'limit'   => null,
			'orderby' => 'list_order'
		) );

		$levels = $this->db->get_levels( $args );

		return $levels;

	}

	/**
	 * Determine if authenticated user has permission to access response data
	 *
	 * @access public
	 * @since  1.1
	 * @return bool
	 */
	public function can_view() {
		return current_user_can( 'rcp_view_levels' );
	}

	/**
	 * Determine if authenticated user has permission to edit data
	 *
	 * @access public
	 * @since  1.1
	 * @return bool
	 */
	public function can_edit() {
		return current_user_can( 'rcp_manage_levels' );
	}

}