<?php

/*
 * This file is part of RaspiSMS.
 *
 * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
 *
 * This source file is subject to the GPL-3.0 license that is bundled
 * with this source code in the file LICENSE.
 */

namespace controllers\publics;

use Monolog\Handler\StreamHandler;
use Monolog\Logger;

    /**
     * Controller of callback pages, like sms status update notification.
     */
    class Callback extends \descartes\Controller
    {
        private $logger;
        private $user;
        private $internal_user;
        private $internal_sended;
        private $internal_adapter;

        public function __construct()
        {
            $bdd = \descartes\Model::_connect(DATABASE_HOST, DATABASE_NAME, DATABASE_USER, DATABASE_PASSWORD);

            $this->internal_user = new \controllers\internals\User($bdd);
            $this->internal_sended = new \controllers\internals\Sended($bdd);
            $this->internal_adapter = new \controllers\internals\Adapter();

            //Logger
            $this->logger = new Logger('Callback ' . uniqid());
            $this->logger->pushHandler(new StreamHandler(PWD_LOGS . '/callback.log', Logger::DEBUG));


            //If invalid api key, quit with error
            $this->user = false;
            $api_key = $_GET['api_key'] ?? false;
            if ($api_key)
            {
                $this->user = $this->internal_user->get_by_api_key($api_key);
            }

            if (!$this->user)
            {
                http_response_code(401);
                echo json_encode(['error' => 'Invalid API key. You must provide a valid GET or POST api_key param.']);
                $this->logger->error('Callback call failed with invalid api key : ' . $api);
                exit(1);
            }
            
            $this->logger->info('Callback call succed for user id : ' . $this->user['id']);
        }

        /**
         * Function call on a sended sms status change notification reception.
         * We return nothing, and we let the adapter do his things
         *
         * @param string $adapter_name : Name of the adapter to use
         * @return bool : true on success, false on error
         */
        public function update_sended_status(string $adapter_name)
        {
            $this->logger->info('Callback status call with adapter name : ' . $adapter_name);

            //Search for an adapter
            $find_adapter = false;
            $adapters = $this->internal_adapter->list_adapters();
            foreach ($adapters as $adapter)
            {
                if (mb_strtolower($adapter['meta_name']) === mb_strtolower($adapter_name))
                {
                    $find_adapter = $adapter;
                }
            }

            if (false === $find_adapter)
            {
                $this->logger->error('Callback status use non existing adapter : ' . $adapter_name);
                return false;
            }

            //Instanciate adapter, check if status change is supported and if so call status change callback
            $adapter_classname = $find_adapter['meta_classname'];
            if (!$find_adapter['meta_support_status_change'])
            {
                $this->logger->error('Callback status use adapter ' . $adapter_name . ' which does not support status change.');
                return false;
            }

            $callback_return = $adapter_classname::status_change_callback();
            if (!$callback_return)
            {
                $this->logger->error('Callback status with adapter ' . $adapter_name . ' failed on adapter compute.');
                return false;
            }

            $sended = $this->internal_sended->get_by_uid_and_adapter($callback_return['uid'], $adapter_classname);
            if (!$sended)
            {
                $this->logger->error('Callback status try update inexisting message with uid = ' . $callback_return['uid'] . '.');
                return false;
            }
            
            $this->logger->info('Callback status update message with uid ' . $callback_return['uid'] . '.');
            $this->internal_sended->update_status($sended['id'], $callback_return['status']);

            return true;
        }
    }