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Telegram bot handler

Installation

composer require mateodioev/tg-handler
use Mateodioev\TgHandler\Bot;

Usage

Create new instance and add your command

$bot = new Bot($botToken);

$bot->onEvent(YourCommandInstance);

$bot->byWebhook();
// or
$bot->longPolling($timeout); // No needs server with ssl

Creating new command instance

All text commands need to extend Mateodioev\TgHandler\Commands\MessageCommand class, and put the logic in the method handle.

use Mateodioev\TgHandler\Commands\MessageCommand;
use Mateodioev\Bots\Telegram\Api;
use Mateodioev\TgHandler\Context;

class MyCommand extends MessageCommand
{
    protected string $name = 'start';
    protected string $description = 'Start the bot';
    
    public function handle(Api $bot, Context $context){
         // TODO: Implement handle() method.
         $bot->sendMessage($context->getChatId(), 'Hello!!!');
    }
}

$bot->onEvent(MyCommand::get());

This command works with /start any text here or /start. If you need another prefixes (/, !) you can add with method addPrefix or with property prefix

class MyCommand extends MessageCommand
{
    protected string $name = 'start';
    protected string $description = 'Start the bot';
    protected array $prefix = ['/', '!'];
    
    // Additionally you can add command aliases
    protected array $alias = ['help'];
    
    ...
}

// or
$myCommand = MyCommand::get();
$myCommand->setPrefixes(['/', '!']); // Set prefix, no need to set `$prefix` property

Using middlewares

You can add middlewares to your command. Middlewares are closures that will be executed before the command. All middlewares results will be passed to the command as an array.

For example, you can create a middleware that will check if the user is authorized, and if not, the command will not be executed.

class MyCommand extends MessageCommand
{
    protected string $name = 'start';
    protected string $description = 'Start the bot';
    protected array $middlewares = [
        'authUser'
    ];
    
    public function handle(Api $bot, Context $context, array $args = []){
        // $args[0] is the result of the middleware authUser
        // Your logic here
    }
}

// Your middleware function 
function authUser(Context $ctx, Api $bot) {
    $user = User::find($ctx->getUserId());
    if (!$user) {
        $bot->replyTo($ctx->getChatId(), 'You are not authorized', $ctx->getMessageId())
        throw new \Mateodioev\TgHandler\Commands\StopCommand(); // Stop command execution
    }
    return $user;
}

You can use StopCommand exception to stop command execution

Using filters

Now you can set custom filters to you event for validate, all filters need to extends the interface Mateodioev\TgHandler\Filters\Filter

use Mateodioev\Bots\Telegram\Api;
use Mateodioev\TgHandler\Context;

[\Mateodioev\TgHandler\Filters\FilterFromUserId(996202950)];
class FilterCommand extends MessageCommand
{
    protected string $name = 'filter';
    
    public function handle(Api $bot, Context $context, array $args = [])
    {
    }
}

Now this command only respond to the user ID 996202950

Using multiple filters

You can use FilterCollection

use Mateodioev\TgHandler\Events\Types\MessageEvent;
use Mateodioev\TgHandler\Filters\{FilterCollection, FilterMessageChat, FilterMessageRegex};

#[FilterCollection(
    new FilterMessageChat(TestChat::CHAT_ID),
    new FilterMessageRegex('/.*(mt?proto).*/i')
)]
class TestChat extends MessageEvent {
    const CHAT_ID = 'Put your chat id here';
    public function execute(Api $bot, Context $context, array $args = []) {
        // your logic here
    }
}

Or can use this sintax

use Mateodioev\TgHandler\Events\Types\MessageEvent;
use Mateodioev\TgHandler\Filters\{FilterCollection, FilterMessageChat, FilterMessageRegex};

#[FilterMessageChat(TestChat::CHAT_ID), FilterMessageRegex('/.*(filters).*/i')]
class TestChat extends MessageEvent {
    const CHAT_ID = 'Put your chat id here';
    public function execute(Api $bot, Context $context, array $args = []) {
        // your logic here
    }
}

Conversations

To start a new conversation you simply return an instance of the Mateodioev\TgHandler\Conversations\Conversations in a interface of Mateodioev\TgHandler\Events\EventInterface

Conversation:

use Mateodioev\Bots\Telegram\Api;
use Mateodioev\TgHandler\Context;
use Mateodioev\TgHandler\Conversations\MessageConversation;

class MyConversation extends MessageConversation
{
    // This is optional, only for validate the user input message
    protected string $format = 'My name is {w:name}';
    public function execute(Api $bot, Context $context, array $args = [])
    {
        $bot->sendMessage(
            $context->getChatId(),
            'Nice to meet you ' . $this->param('name')
        );
    }
}

EventInterface handler for this case an instance of MessageCommand

use Mateodioev\Bots\Telegram\Api;
use Mateodioev\TgHandler\Commands\MessageCommand;
use Mateodioev\TgHandler\Context;

class Name extends MessageCommand
{
    protected string $name = 'name';

    public function handle(Api $bot, Context $context, array $args = [])
    {
        $bot->replyTo(
            $context->getChatId(),
            'Please give me your name:',
            $context->getMessageId(),
        );

        // Register next conversation handler
        return nameConversation::new($context->getChatId(), $context->getUserId());
    }
}

Register the conversation

$bot->onEvent(Name::get());

For more details see examples folder

Loging

Basic usage

use Mateodioev\TgHandler\Log\{Logger, TerminalStream};

$log = new Logger(new TerminalStream); // Print logs in terminal
$bot->setLogger($log); // Save logger

Collections of streams

use Mateodioev\TgHandler\Log\{BulkStream, Logger, TerminalStream, PhpNativeStream};

BulkStream::add(new TerminalStream); // print logs in terminal
BulkStream::add((new PhpNativeStream)->activate(__DIR__)); // save logs in .log file and catch php warnings

$bot->setLogger(new Logger(new BulkStream));

Set log level

use Mateodioev\TgHandler\Log\{Logger, TerminalStream};

$log = new Logger(new TerminalStream);

// disable all logs
$log->setLevel(Logger:ALL, false);
// Enable only critical, error and emergency messages
$log->setLevel(Logger::CRITICAL | Logger::ERROR | Logger::EMERGENCY);

$bot->setLogger($log);

Use

The logger can be used from the bot or event instances (MessageCommand, CallbackCommand, etc)

Bot:

$bot->getLogger()->debug('This is a debug message');
// output: [Y-m-d H:i:s] [DEBUG] This is a debug message
$bot->getLogger()->info('This is a debug message with {paramName}', [
    'paramName' => 'context params'
]);
// output: [Y-m-d H:i:s] [INFO] This is a debug message with context params

Event instances:

use Mateodioev\TgHandler\Commands\MessageCommand;
use Mateodioev\Bots\Telegram\Api;
use Mateodioev\TgHandler\Context;

class MyCommand extends MessageCommand
{
    protected string $name = 'start';
    protected string $description = 'Start the bot';
    
    public function handle(Api $bot, Context $context)
    {
         $this->logger()->debug('Loging inside event');
         $this->logger()->info('User {name} use the command {commandName}', [
            'name'        => $context->getUserName() ?? 'null',
            'commandName' => $this->name
         ]);
    }
}

// register the command
$bot->onEvent(MyCommand::get());

Manager errors

You can register an exception handler the will be used if an exception occurs within the Events::execute method method or in the event middlewares

// Base exception
class UserException extends \Exception
{}

// Specific exception
final class UserNotRegistered extends UserException {}
final class UserBanned extends UserException {}

// This only manage UserBanned exception
$bot->setExceptionHandler(UserBanned::class, function (UserBanned $e, Bot $bot, Context $ctx) {
    $bot->getApi()->sendMessage($ctx->getChatId(), 'You are banned');
});

// This manage all UserException sub classes
$bot->setExceptionHandler(UserException::class, function (UserException $e, Bot $bot, Context $ctx) {
    $bot->getLogger()->warning('Ocurrs an user exception in chat id: ' . $ctx->getChatId());
});