Lastkatka Bot

Useful multi-feature bot for telegram

Features

The "Bulls and Cows" game
Pair of the day, marriages
Roleplay, duels, and cakegiving (try /cake command to figure out what is it)
Genshin pull simulator (/wish, /inv)
/f implementation
Advanced /weather using wttr.in service
Sticker with text generation on new group member
Various group settings such as forbidden commands, custom greeting stickers and more
Localization (currently we only support Russian and Ukrainian)

Simple bootstrap
Prometheus metrics (available on /prometheus endpoint) and advanced error logging (directly to your telegram group or channel, with logs, caused JSON and everything you need!)
Automatic database cleanup - forget about inactive users
Advanced feedback system - receive feedback from you users, answer anonymously, track actions
Blacklist for users and groups
Admin management
Tracking (Know in what groups are your users in)
/broadcast system
Low memory consumption - we had this bot running with 140000 users and 2k messages / sec on -Xmx128M for the whole month!
Cross-platform (it’s written in java)
The /help command shows only those commands that the user (standard user/admin/main admin) can run

Java development kit 21+

First, you need to build the jar entering the following commands:

The "fat jar" with all dependencies will be stored in /build/libs directory

Configuration is done by setting environment variables.

Look for bot and datasources.default section in the application.yml file to get info about environment variables you need

Also look at the permitted variables list in the Main class and Micronaut configuration reference

By default, bot connects to Postgresql database named lastkatkabot running on localhost:5432

You can set the database address by changing DBHOST, DBPORT and DBNAME environment variables.

For database authorization, use DBUSER and DBPASS environment variables. Default login:password is lastkatkabot:sa

java -jar build/libs/lastkatkabot-version.jar

Logs are redirected to stdin and stderr