<?php

/**
 * Created by Vextras.
 *
 * Name: Ryan Hungate
 * Email: ryan@vextras.com
 * Date: 11/14/16
 * Time: 9:38 AM
 */
class MailChimp_WooCommerce_User_Submit extends WP_Job
{
    public $user_id;
    public $subscribed;
    public $updated_data;

    /**
     * MailChimp_WooCommerce_User_Submit constructor.
     * @param null $user_id
     * @param null $subscribed
     * @param WP_User|null $updated_data
     */
    public function __construct($user_id = null, $subscribed = null, $updated_data = null)
    {
        if (!empty($user_id)) {
            $this->user_id = $user_id;
        }

        if (is_bool($subscribed)) {
            $this->subscribed = $subscribed;
        }

        if (!empty($updated_data)) {
            $this->updated_data = $updated_data->to_array();
        }
    }

    /**
     * @return bool
     */
    public function handle()
    {
        if (!mailchimp_is_configured()) {
            mailchimp_debug(get_called_class(), 'mailchimp is not configured properly');
            return false;
        }

        $options = get_option('mailchimp-woocommerce', array());
        $store_id = mailchimp_get_store_id();

        // load up the user.
        $user = new WP_User($this->user_id);

        // we need a valid user, a valid store id and options to continue
        if ($user->ID <= 0 || empty($store_id) || !is_array($options)) {

            // seems as if the database records are not being set by the time this queue job is fired,
            // just a precautionary to make sure it's available during
            sleep(3);

            $options = get_option('mailchimp-woocommerce', array());
            $store_id = mailchimp_get_store_id();

            // load up the user.
            $user = new WP_User($this->user_id);

            if ($user->ID <= 0 || empty($store_id) || !is_array($options)) {
                mailchimp_log('member.sync', "Invalid Data For Submission :: {$user->user_email}");
                return false;
            }
        }

        // if we have a null value, we need to grab the correct user meta for is_subscribed
        if (is_null($this->subscribed)) {
            $user_subscribed = get_user_meta($this->user_id, 'mailchimp_woocommerce_is_subscribed', true);
            if ($user_subscribed === '' || $user_subscribed === null) {
                mailchimp_log('member.sync', "Skipping sync for {$user->user_email} because no subscriber status has been set");
                return false;
            }
            $this->subscribed = (bool) $user_subscribed;
        }

        $api_key = isset($options['mailchimp_api_key']) ? $options['mailchimp_api_key'] : false;
        $list_id = isset($options['mailchimp_list']) ? $options['mailchimp_list'] : false;

        // we need a valid api key and list id to continue
        if (empty($api_key) || empty($list_id)) {
            mailchimp_log('member.sync', "Invalid Api Key or ListID :: {$user->user_email}");
            return false;
        }

        // don't let anyone be unsubscribed from the list - that should only happen on email campaigns
        // and someone clicking the unsubscribe linkage.
        if (!$this->subscribed) {
            return false;
        }

        $api = new MailChimp_WooCommerce_MailChimpApi($api_key);

        $merge_vars = array();

        $fn = trim($user->first_name);
        $ln = trim($user->last_name);

        if (!empty($fn)) $merge_vars['FNAME'] = $fn;
        if (!empty($ln)) $merge_vars['LNAME'] = $ln;

        try {

            // see if we have a member.
            $api->member($list_id, $user->user_email);

            // if we're updating a member and the email is different, we need to delete the old person
            if (is_array($this->updated_data) && isset($this->updated_data['user_email'])) {

                if ($this->updated_data['user_email'] !== $user->user_email) {

                    // delete the old
                    $api->deleteMember($list_id, $this->updated_data['user_email']);

                    // subscribe the new
                    $api->subscribe($list_id, $user->user_email, $this->subscribed, $merge_vars);

                    mailchimp_log('member.sync', 'Subscriber Swap '.$this->updated_data['user_email'].' to '.$user->user_email, $merge_vars);

                    return false;
                }
            }

            // ok let's update this member
            $api->update($list_id, $user->user_email, $this->subscribed, $merge_vars);

            mailchimp_log('member.sync', "Updated Member {$user->user_email}", $merge_vars);
        } catch (\Exception $e) {

            // if we have a 404 not found, we can create the member
            if ($e->getCode() == 404) {

                try {
                    $api->subscribe($list_id, $user->user_email, $this->subscribed, $merge_vars);
                    mailchimp_log('member.sync', "Subscribed Member {$user->user_email}", $merge_vars);
                } catch (\Exception $e) {
                    mailchimp_log('member.sync', $e->getMessage());
                }

                return false;
            }

            mailchimp_error('member.sync', mailchimp_error_trace($e, $user->user_email));
        }

        return false;
    }
}