AbrechnomatBot

Telegram bot for bill splitting. Supports an unlimited amount of debtors/creditors on a bill. Calculates as little transactions as possible to pay everybody out.

Usage

• Add it to a group (works best if you give it admin privileges)
• Send /add_payment see on it should be used
• /revert_payment to remove an added payment
• Use /bill_stats to see the current amount and needed transactions
• /close_bill after all payments are done (new bill starts immediately after that)

Development Setup

• Create bot in BotFather to get the bot api token
• cp .env.example .env.local
• Fill in fields in .env.local
• Set up env variables for current session: source .env.local
• Run: iex -S mix

Deployment

• ssh into server
• git clone https://github.com/peterhass/abrechnomat_bot.git
• MIX_ENV=prod mix deps.get && MIX_ENV=prod mix release
• Setup database if needed: DB_CREATE=true ./bin/abrechnomat_bot start_iex

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