<?php
namespace OCA\CTAutoMailHooks\Hooks;
use OCP\ILogger;
use OCP\IUserManager;
use OCA\CTAutoMailHooks\Config;
class UserHooks {
    private $logger;
    private $config;
    private $userManager;
    private $logContext = ['app' => 'ct_auto_mail_hooks'];
    public function __construct(
        ILogger $logger, Config $config, IUserManager $userManager) {
        $this->logger = $logger;
        $this->config = $config;
        $this->userManager = $userManager;
    }
    public function register() {
        $this->userManager->listen(
            '\OC\User', 'postCreateUser',$this->createUserCB());
        $this->userManager->listen(
            '\OC\User', 'preDelete', $this->deleteUserCB());
        $this->userManager->listen(
            '\OC\User', 'postSetPassword', $this->updateEmailPasswordCB());
    }
    private function createUserCB() {
        return function (\OC\User\User $user, string $password) {
            $newuser = array(
                'email' => $user->getUID() . $this->config->getEmailAddressSuffix(),
                'displayed_name' => $user->getDisplayName(),
                'raw_password' => $password,
                'quota_bytes' => $this->config->getEmailQuotaMB() * 1024 * 1024,
                'enabled' => true,
                'enable_imap' => true,
                'spam_enable' => true,
                'spam_mark_as_read' => true,
                'spam_threshold' => 80
            );

            if($this->createEmailAccount($newuser)) {
                $this->logger->warning(
                    "Automatically created mail account for uid " . $uid
                    . " with e-mail address \"" . $newuser["email"]
                    . " e-mail address suffix was \"". $email_suffix . "\"."
                    , $this->logContext);
            }
            else {
                $this->logger->error(
                    "Error creating mail account OR mail folders for uid "
                    . $uid);
            }
        };
    }

    private function deleteUserCB() {
        return function (\OC\User\User $user) {
            $email = $user->getUID() . $this->config->getEmailAddressSuffix();
            if($this->deleteEmailAccount($email)) {
                $this->logger->warning("Deleted mail account: " .  $email, $this->logContext);
            } else {
                $this->logger->error("Error deleting mail account" . $email);
            }
        };
    }

    private function updateEmailPasswordCB() {
        return function (\OC\User\User $user, string $password) {
            $email = $user->getUID() . $this->config->getEmailAddressSuffix();
            if($this->updateEmailPassword($email, $password)) {
                $this->logger->warning("Updated glesys password for account: " .  $email, $this->logContext);
            } else {
                $this->logger->error("Error updating mail password for account" . $email);
            }
        };
    }
    private function createImapFolders($user_data) {
        // $server = 'mail.glesys.se';
        // $email = $user_data['email'];
        // $passw = $user_data['password'];
        // $folders = array('Sent', 'Drafts', 'Trash', 'Junk', 'Archive');
        // $mbox = \imap_open("{" . $server . "}", $email, $passw, OP_HALFOPEN);
        // if(!$mbox){
        //     $message = "can't connect: " . \imap_last_error();
        //     $this->logger->error($message);
        //     return false;
        // }
        // foreach ($folders as $folder) {
        //     if (! @\imap_createmailbox(
        //             $mbox,
        //             \imap_utf7_encode("{".$server."}INBOX.".$folder))) {
        //         $message = 'Error creating ' . $folder . ' folder: ' .
        //                    \imap_last_error();
        //         $this->logger->error($message);
        //     }
        // }
        // \imap_close($mbox);
        // return true;
    }

    private function createEmailAccount($user_data) {
        // $keys = $this->config->getGlesysKeys();
        // $fields = array(
        //     'emailaccount' => $user_data['email'],
        //     'password' => $user_data['password'],
        //     'quota' => $user_data['quota']
        // );
        // $query = http_build_query($fields);
        // $ch = curl_init();
        // curl_setopt($ch, CURLOPT_URL,
        //             'https://api.glesys.com/email/createaccount/');
        // curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        // curl_setopt($ch, CURLOPT_POST, 1);
        // curl_setopt($ch, CURLOPT_USERPWD, $keys);
        // curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
        // $result = curl_exec($ch);
        // if (curl_errno($ch)) {
        //     $message = 'Error:' . curl_error($ch);
        //     $this->logger->error($message);
        //     return false;
        // }
        // curl_close($ch);
        // $xml = simplexml_load_string($result);
        // $code = $xml->status->code;
        // if ($code == 200) return $this->createImapFolders($user_data);
        // else $this->logger->warning(
        //     "Error: non-200 status: " . $xml->status->text);
        // return false;
    }

    private function deleteEmailAccount($user_data) {
        // $ch = curl_init();
        // $keys = $this->config->getGlesysKeys();
        // curl_setopt($ch, CURLOPT_URL, 'https://api.glesys.com/email/delete/');
        // curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        // curl_setopt($ch, CURLOPT_POSTFIELDS, "email=" . $user_data["email"]);
        // curl_setopt($ch, CURLOPT_POST, 1);
        // curl_setopt($ch, CURLOPT_USERPWD, $keys);
        // $result = curl_exec($ch);
        // if (curl_errno($ch)) {
        //     $message = 'Error: ' . curl_error($ch);
        //     $this->logger->error($message);
        //     return false;
        // }
        // curl_close($ch);
        // return true;
    }

    private function updateEmailPassword($user_data) {
        // $keys = $this->config->getGlesysKeys();
        // $fields = array(
        //     'emailaccount' => $user_data['email'],
        //     'password' => $user_data['password']
        // );
        // $query = http_build_query($fields);
        // $ch = curl_init();
        // curl_setopt($ch, CURLOPT_URL,
        //             'https://api.glesys.com/email/editaccount/');
        // curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        // curl_setopt($ch, CURLOPT_POST, 1);
        // curl_setopt($ch, CURLOPT_USERPWD, $keys);
        // curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
        // $result = curl_exec($ch);
        // if (curl_errno($ch)) {
        //     $message = 'Error:' . curl_error($ch);
        //     $this->logger->error($message);
        //     return false;
        // }
        // curl_close($ch);
        // $xml = simplexml_load_string($result);
        // $code = $xml->status->code;
        // if ($code != 200){
        //     $this->logger->warning(
        //         "Error: non-200 status: " .  $xml->status->text);
        //     return false;
        // }
        // return true;
    }
}