📨 CLI Chat App

A Java project that implements a simple live chat room using Multi-threading and a MySQL database for storing and retrieving messages. The application runs in the terminal and uses ANSI codes for colorized, real-time message updates.

🛠️ Tech Stack

• Core Language: Java
• Database: MySQL
• Connectivity: JDBC (Java Database Connectivity)
• Concurrency: Uses a separate Thread (MessageFetch) for real-time polling.

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⚙️ Features

🟢 Live Chat Mode

• Real-time Messaging: Uses multi-threading to poll and display messages instantly.
• User Identification: ANSI colorized usernames for visual distinction.
• Database Persistence: All chats are stored in a MySQL database with auto-timestamps.
• Easter Eggs & Commands: Special commands for fun visuals and utilities.

🤖 AI Chat Mode

• Gemini Integration: Chat directly with an AI bot (Gemini 2.5 Flash). Allowing for more enhanced user experience with the application.

🎨 Easter Eggs & Utilities

Use these commands inside the Live Chat to trigger special effects:

• /weather <city> : Fetches current weather for the specified city (e.g., /weather Mangalore).
• /list : Lists all available ASCII art commands.
• ASCII Art: /red, /butterfly, /aah, /dance, /kitty

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📸 Demo Preview

Enter username: Devdat
Select mode:
1. Live Chat
2. AI Chat
Enter choice: 1
Attempting to connect to server...
Connection successful!
--- Chat room (Live) ---
[21:30:00]  Devdat : Hey everyone, this chat finally works!
[21:31:10]  Pramukh  : Nice! I was just testing the system.
> 

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🚀 How to Run & Collaborate

1. Database Setup (Admin)

Before running, you must set up the Chatapp database and create a table for messages.

Component	SQL Type	Description
id	INT (PK, AUTO_INCREMENT)	Primary key, used by the Java application to track new messages.
username	VARCHAR	The user's chosen display name.
message_text	VARCHAR	The content of the message.
color_code	VARCHAR	ANSI code for username color.
timestamp	DATETIME / TIMESTAMP	Timestamp of the message (set by the database).

SQL Schema:

CREATE DATABASE IF NOT EXISTS Chatapp;
USE Chatapp;

CREATE TABLE messages (
    id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) NOT NULL,
    message_text TEXT NOT NULL,
    color_code VARCHAR(15),
    timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
);

2. Compile and Run

1. Clone the Repository:

   git clone https://github.com/devdat2021/CLI-Chat
   cd CLI-Chat

2. Download JDBC Driver: Ensure you have the MySQL JDBC Connector (mysql-connector-java-[version].jar) and place it in a location accessible to your build system.
3. Update credentials: Ensure you change the API Key, DB Connection info with your actual information before compiling.
4. Compile: Compile the Java files (App.java, message.java, DBConnection.java,LiveChat.java,AIChat.java,extra.java,).
5. Run: Execute the compiled App class, ensuring the JDBC driver is on the classpath.

👨‍💻 Contributors

• Devdat — Developer, Design & Core Logic
• Pramukh — Collaboration, Testing, and Bug Fixing

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