<?php

namespace frontend\controllers;

use Yii;
use yii\web\Controller;
use frontend\services\TelegramService;

class BotController extends Controller
{
    public $enableCsrfValidation = false;

    protected TelegramService $telegramService;

    public function __construct($id, $module, $config = [])
    {
        parent::__construct($id, $module, $config);
        $this->telegramService = new TelegramService();
    }

    /**
     * Вебхук для Telegram
     * @param int|null $id ID бота
     */
    public function actionIndex($id = null)
    {
        if (!$id) {
            return 'ok';
        }

        $rawBody = file_get_contents('php://input');
        if ($rawBody === false) {
            $rawBody = '';
        }

        $response = Yii::$app->response;
        $response->statusCode = 200;
        $response->content = 'ok';
        $response->send();

        if (function_exists('fastcgi_finish_request')) {
            fastcgi_finish_request();
        } else {
            ignore_user_abort(true);
            ob_start();
            echo 'ok';
            $size = ob_get_length();
            header("Content-Length: $size");
            header("Connection: close");
            ob_end_flush();
            flush();
        }

        try {
            $this->telegramService->handleUpdate((int) $id, $rawBody !== '' ? $rawBody : null);
        } catch (\Throwable $e) {
            file_put_contents(
                Yii::getAlias('@webroot') . '/tg_log.txt',
                date('Y-m-d H:i:s') . " - Telegram webhook error: " . $e->getMessage() . "\n" . $e->getTraceAsString() . "\n",
                FILE_APPEND
            );
        }

        exit(0);
    }
}