<?php

/**
 * The public-facing functionality of the plugin.
 *
 * @link       https://horizontes.info
 * @since      1.0.0
 *
 * @package    Reuna_Mailchimp
 * @subpackage Reuna_Mailchimp/public
 */

use \DrewM\MailChimp\MailChimp;

/**
 * The public-facing functionality of the plugin.
 *
 * Defines the plugin name, version, and two examples hooks for how to
 * enqueue the public-facing stylesheet and JavaScript.
 *
 * @package    Reuna_Mailchimp
 * @subpackage Reuna_Mailchimp/public
 * @author     Horizontes Coop. <contato@horizontes.info>
 */
class Reuna_Mailchimp_Public {

	/**
	 * The ID of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $plugin_name    The ID of this plugin.
	 */
	private $plugin_name;

	/**
	 * The version of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $version    The current version of this plugin.
	 */
	private $version;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since    1.0.0
	 * @param      string    $plugin_name       The name of the plugin.
	 * @param      string    $version    The version of this plugin.
	 */
	public function __construct( $plugin_name, $version )
	{
		$this->plugin_name = $plugin_name;
		$this->version = $version;
	}

	/**
	 * Register the JavaScript for the public-facing side of the site.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_scripts() 
	{
		wp_enqueue_script($this->plugin_name, plugin_dir_url( __FILE__ ) . 'js/reuna-mailchimp-public.js', array( 'jquery' ), $this->version, false);

		wp_localize_script($this->plugin_name, 'wpApiSettings', [
			'root' => esc_url_raw( rest_url() ),
			'nonce' => wp_create_nonce( 'wp_rest' )
		]);
	}

	/**
	 * Register REST API routes provided by the plugin
	 *
	 * @since    1.0.0
	 */
	public function register_rest_api_routes() 
	{
		register_rest_route($this->plugin_name . '/v1', '/subscribe/(?P<list_id>\w+)', [
			'methods' => 'POST',
			'callback' => [$this, 'subscribe_user_to_list'],
			'args' => [
				'list_id' => [
					'required' => true,
				],
			],
			'permission_callback' => function () {
				return current_user_can('read');
			}
		]);
	}

	/**
	 * Add a subscriber
	 *
	 * @since    1.0.0
	 */
	public function subscribe_user_to_list(WP_REST_Request $request) 
	{
		if (! function_exists('env')) {
			return new WP_Error('missing_env');
		}

		$api_key = env('MAILCHIMP_API_KEY');
		if (! $api_key) {
			return new WP_Error('missing_mailchimp_api_key');
		}

		$user = wp_get_current_user();

		$mailchimp = new MailChimp($api_key);
		$mailchimp->post(
			'lists/' . $request->get_param('list_id') . '/members',
			[
				'email_address' => $user->user_email,
			]
		);

		return true;
	}
}