/*
BabyBrett is an experimental code written with the assistence of AI.

The intent of the contract is that there is an initial supply of 50 million tokens
and a total maximum supply of 1 Billion tokens.

Any wallet, so long as they are already a holder of Brett Token, should be able to mint 5,000
tokens for free 1 time each.

The hope is that this token will become a major asset on the Base network while also boosting
interest in Brett.
*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IERC20 {
    function balanceOf(address account) external view returns (uint256);
}

contract BabyBrett {
    string public name = "BabyBrett";
    string public symbol = "BabyBrett";
    uint8 public decimals = 18;
    uint256 public totalSupply;
    uint256 public constant MAX_SUPPLY = 1_000_000_000 * 10 ** 18;
    uint256 public constant INITIAL_SUPPLY = 50_000_000 * 10 ** 18;
    uint256 public constant MINT_AMOUNT = 5_000 * 10 ** 18;
    address public constant HOLDER_TOKEN = 0x532f27101965dd16442E59d40670FaF5eBB142E4;
    
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    mapping(address => bool) public hasMinted;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    
    constructor() {
        totalSupply = INITIAL_SUPPLY;
        balanceOf[msg.sender] = INITIAL_SUPPLY;
        emit Transfer(address(0), msg.sender, INITIAL_SUPPLY);
    }

    function transfer(address to, uint256 value) public returns (bool success) {
        require(balanceOf[msg.sender] >= value, "Insufficient balance");
        balanceOf[msg.sender] -= value;
        balanceOf[to] += value;
        emit Transfer(msg.sender, to, value);
        return true;
    }

    function approve(address spender, uint256 value) public returns (bool success) {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) public returns (bool success) {
        require(balanceOf[from] >= value, "Insufficient balance");
        require(allowance[from][msg.sender] >= value, "Allowance exceeded");
        balanceOf[from] -= value;
        allowance[from][msg.sender] -= value;
        balanceOf[to] += value;
        emit Transfer(from, to, value);
        return true;
    }

    function mint() public returns (bool success) {
        require(!hasMinted[msg.sender], "Already minted");
        IERC20 holderToken = IERC20(HOLDER_TOKEN);
        require(holderToken.balanceOf(msg.sender) > 0, "Must hold required token");
        require(totalSupply + MINT_AMOUNT <= MAX_SUPPLY, "Max supply reached");
        
        hasMinted[msg.sender] = true;
        balanceOf[msg.sender] += MINT_AMOUNT;
        totalSupply += MINT_AMOUNT;
        
        emit Transfer(address(0), msg.sender, MINT_AMOUNT);
        return true;
    }
}

{
  "compilationTarget": {
    "BabyBrett.sol": "BabyBrett"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}