This project is a simple chatbot application built using Python, integrating a database for chat history storage and a language model service to generate responses. The chatbot can handle user messages, manage chat history, and terminate conversations upon receiving a /stop command.

Features

Conversation Handling: The bot processes user inputs and generates responses using a language model service.
Database Integration: Stores chat data (user messages and bot responses) and maintains chat history.
Session Management: Supports starting and terminating chat sessions, including proper logging of start and end times.
Message Truncation: Limits conversation history to the last few messages if the conversation exceeds a large number of entries.

Components

Chatbot Class: Core logic for handling user messages and managing the chat lifecycle.
Database (Mocked in tests): Handles chat data storage (methods for inserting and retrieving data).
LLM Service (Mocked in tests): Generates responses to user input based on conversation history.

Installation

Clone the repository:
Install the necessary dependencies
```
pip3 install requirements.txt
```
Run the bot or test it using doctest:
```
python3 -m doctest -v chatbot.py
```

Usage

Create Database: Create a databse named ChatDB in Mysql
Create .env:

  # Together API key
  TOGETHER_API_KEY="YOUR_API_KEY"

  # Groq API key
  GROQ_API_KEY = "YOUR_API_KEY"

  # MySQL connectionDB (if you're running locally)
  DB_USER = "<DB_USER_NAME>"
  DB_PASSWORD = "<DB_USER_NAME>"
  DB_HOST = "127.0.0.1"
  DB_NAME = "ChatDB"
  PORT = "3306"

Handling Messages: run below command to start the chat in console, you can login to your Database to check the chat history

python3 main.py

Ending the Chat: When the user sends /stop, the chat will terminate and log the end of the conversation with the message 'conversation-terminated'

Testing

The code includes basic doctests to verify the chatbot's functionality using mock services for the database and language model:

Run the tests:
```
python3 -m doctest -v chatbot.py
```