# 🔄 Token Swap Program

A Solana program demonstrating atomic token swaps using PDAs (Program Derived Addresses) and the Token 2022 Program. 

## ✨ Overview

This program enables users to:

1. 💫 Make token swap offers by:
   - Specifying the amount of token A they want to offer
   - Specifying the amount of token B they want in return
   - Depositing token A into a PDA-controlled vault

2. 🤝 Take existing offers by:
   - Paying the requested amount of token B to the offer maker
   - Receiving the offered token A from the vault

The swap is atomic - either both transfers happen or neither does. 🔒

## 🚀 Key Features

- ⚡️ Supports both Legacy Token Program and Token 2022 Program
- 🛡️ Uses PDAs for secure token custody
- ✅ Fully tested with comprehensive test suite
- 🔐 Implements proper account validation and security checks

## 🏗️ Program Architecture

The program consists of two main instructions:

### 📤 Make Offer
- Creates an offer account storing the trade details
- Initializes a token vault controlled by the offer PDA
- Transfers offered tokens from maker to vault

### 📥 Take Offer  
- Validates the offer terms
- Transfers wanted tokens from taker to maker
- Transfers offered tokens from vault to taker
- Closes the offer account and vault

## 💻 Development

### Prerequisites
- 🦀 Rust and Cargo
- ☀️ Solana Tool Suite
- ⚓️ Anchor Framework

### Building