<?php

class ClefInvite {
    public $code;
    public $created_at;
    private $user_email;
    function __construct($user, $is_network_admin=false) {
        $this->code = md5(uniqid(mt_rand(), true));
        $this->user_email = $user->user_email;
        $this->user_id = $user->ID;
        $this->created_at = time();

        $sites = get_blogs_of_user($user->ID);
        if ($is_network_admin || count($sites) == 0) {
            $site = array_shift($sites);
            switch_to_blog($site->userblog_id);
            $this->site_name = get_bloginfo('name');
            $this->login_url = wp_login_url();
            restore_current_blog();
        } else {
            $this->site_name = get_bloginfo('name');
            $this->login_url = wp_login_url();
        }
    }

    function persist() {
        update_user_meta($this->user_id, 'clef_invite_code', $this);
    }

    function get_link() {
        return ($this->login_url . 
            '?clef_invite_code=' . $this->code . 
            '&clef_invite_id=' . urlencode(base64_encode($this->user_email))); 
    }

    function send_email($from_email) {
        if (empty($this->user_email)) return true;
        
        $invite_link = $this->get_link();

        $subject = '['. $this->site_name . '] ' . __('Set up Clef for your account', "clef");
        $message = ClefUtils::render_template(
            'invite_email.tpl', 
            array(
                "invite_link" =>  $this->get_link(),
                "site_name" => $this->site_name
            ), 
            false
        );
        $headers = "From: WordPress <".$from_email."> \r\n";
        add_filter('wp_mail_content_type', array('ClefUtils', 'set_html_content_type'));

        $sent = wp_mail($this->user_email, $subject, $message, $headers);

        remove_filter('wp_mail_content_type', array('ClefUtils', 'set_html_content_type'));
        return $sent;
    }
}

?>