<?php

namespace MailOptin\WooSubscriptionsConnect;

use MailOptin\Core\Connections\AbstractConnect;
use MailOptin\Core\Logging\CampaignLogRepository;
use MailOptin\RegisteredUsersConnect\WP_Mail_BG_Process;


class MailBGProcess extends WP_Mail_BG_Process
{
    /**
     * @var string
     */
    protected $action = 'mo_wc_subscription_mail_bg_process';

    /**
     * {@inherit_doc}
     */
    protected function task($user_data)
    {
        $email_address = $user_data->user_email;

        if (empty($email_address)) return false;

        $unsubscribed_contacts = get_option('mo_wcsubscription_unsubscribers', []);

        if ( ! empty($unsubscribed_contacts)) {
            if (in_array(base64_encode($email_address), $unsubscribed_contacts)) return false;
        }

        $email_campaign_id = $user_data->email_campaign_id;
        $campaign_log_id   = $user_data->campaign_log_id;

        $content_html = $this->replace_user_merge_tags(CampaignLogRepository::instance()->retrieveContentHtml($campaign_log_id), $email_address);
        $content_text = $this->replace_user_merge_tags(CampaignLogRepository::instance()->retrieveContentText($campaign_log_id), $email_address);

        $search = ['{{unsubscribe}}', '{{webversion}}'];

        $replace = [
            home_url('?mo_wcsubscription_unsubscribe=' . base64_encode($email_address)),
            home_url('?mo_view_web_version=' . $campaign_log_id)
        ];

        $content_text = str_replace($search, $replace, $content_text);
        $content_html = str_replace($search, $replace, $content_html);

        $subject = CampaignLogRepository::instance()->retrieveTitle($campaign_log_id);

        $this->wp_mail_from_filter();
        $this->wp_mail_from_name_filter();
        $this->add_plain_text_message($content_text);

        $this->add_html_content_type();
        $this->wp_mail_error_log($email_address, $campaign_log_id, $email_campaign_id);
        $response = wp_mail($email_address, $subject, $content_html); // send the newsletter.
        $this->remove_html_content_type();

        if ( ! $response) {

            $status = __('Email failed to be delivered', 'mailoptin');

            AbstractConnect::save_campaign_error_log(
                "Email address: $email_address; Note: $status",
                $campaign_log_id,
                $email_campaign_id
            );
        }

        return false;
    }
}