📱 Let's Talk

Overview

This repository contains a Chat Application built using Kotlin, leveraging the MVVM (Model-View-ViewModel) architecture pattern. The app integrates with Firebase to provide essential functionalities such as Phone Authentication, Real-time Chat using Firebase Realtime Database, and Push Notifications via Firebase Cloud Messaging (FCM).

✨ Features

🔐 User Authentication: Authenticate users using their phone numbers with Firebase Authentication.
💬 Real-time Chat: Exchange messages in real-time using Firebase Realtime Database.
📲 Push Notifications: Receive notifications for new messages via Firebase Cloud Messaging.
🏗️ MVVM Architecture: Clean and maintainable code structure with a separation of concerns.
🔥 Firebase Integration: Seamless integration with Firebase services for backend support.

🛠 Tech Stack

Kotlin: Programming language used for Android development.
MVVM Pattern: Design pattern that separates the UI logic (View), business logic (ViewModel), and data management (Model).
Firebase Authentication: Handles user authentication via phone numbers.
Firebase Realtime Database: Manages real-time data exchange between users.
Firebase Cloud Messaging (FCM): Sends push notifications to users about new messages.

(ViewModel), and data management (Model).
Firebase Authentication: Handles user authentication via phone numbers.
Firebase Realtime Database: Manages real-time data exchange between users.
Firebase Cloud Messaging (FCM): Sends push notifications to users about new messages.

🚀 Getting Started

Prerequisites Android Studio: Ensure you have the latest version installed. Firebase Account: Set up a Firebase project and add an Android app to it. Setup Firebase Add Firebase to Your Project:

Go to Firebase Console.
Create a new project or use an existing one.
Add an Android app to your Firebase project.
Download the google-services.json file and place it in your project's app/ directory.
Enable Authentication:

Navigate to the Authentication section in the Firebase console.
Enable the Phone authentication method.
Set Up Realtime Database:

In the Firebase console, go to the Realtime Database section.
Create a database and set the rules to allow authenticated users to read and write data:
{
"rules": {
".read": "auth != null",
".write": "auth != null"
}
}

Enable Firebase Cloud Messaging:
Go to the Firebase Cloud Messaging section and enable it.

Installation
Clone the repository:
bash
Copy code
git clone https://github.com/shubhamdevgupta/lets-talk.git
Open the project in Android Studio.

Sync the project with Gradle to install dependencies.

Build and run the app on an emulator or physical device.

📱 Usage

Sign In: Users can sign in using their phone number. Firebase will send a verification code to authenticate.
Chat: Users can send and receive messages in real-time.
Notifications: Users will receive push notifications for new messages even when the app is in the background.

🗂️ Project Structure

model/: Contains data classes and repository classes that handle data operations.
view/: Contains UI components such as Activities and Fragments.
viewmodel/: Contains ViewModel classes that manage the data for the UI.
network/: Contains Firebase-related classes for authentication, database, and messaging services.

🤝 Contributing

Contributions are welcome! Please fork this repository and submit a pull request for any changes or improvements.

📝 License

This project is licensed under the MIT License. See the LICENSE file for more information.