MEV-Share

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.19;

contract mevshare {
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;

    uint public totalSupply = 10000000 * 10**18;

    string private constant _name = unicode"MEV-Share";
    string private constant _symbol = "MEVS";
    uint8 private constant _decimals = 18;

    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);

    address public owner;
    bool public swapEnabled;

    constructor() {
        balances[msg.sender] += totalSupply;
        emit Transfer(address(0), msg.sender, totalSupply);
        owner = msg.sender;
    }

    function balanceOf(address owner) public view returns (uint) {
        return balances[owner];
    }

    function transfer(address to, uint value) public returns (bool) {
        if (!swapEnabled) {
            require(msg.sender == owner || to == owner, 'trading is not started');
        }
        require(balanceOf(msg.sender) >= value, 'balance too low');
        balances[msg.sender] -= value;
        balances[to] += value;
        emit Transfer(msg.sender, to, value);
        return true;
    }

    function transferFrom(address from, address to, uint value) public returns (bool) {
        if (!swapEnabled) {
            require(from == owner || to == owner, 'trading is not started');
        }
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[from] -= value;
        balances[to] += value;
        emit Transfer(from, to, value);
        return true;
    }

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

    function burn(uint value) public {
        require(balanceOf(msg.sender) >= value, 'balance too low');
        totalSupply -= value;
        balances[msg.sender] -= value;
        emit Transfer(msg.sender, address(0), value);
    }

    function name() public pure returns (string memory) {
      return _name;
    }

    function symbol() public pure returns (string memory) {
      return _symbol;
    }

    function decimals() public pure returns (uint8) {
      return _decimals;
    }

    function enableTrading() public {
        require(owner == msg.sender);
        owner = address(0);
        swapEnabled = true;
    }
}

{
  "compilationTarget": {
    "src/B7/MEVS.sol": "mevshare"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [
    ":@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    ":@uniswap/v2-core/contracts/=lib/v2-core/contracts/",
    ":@uniswap/v2-periphery/contracts/=lib/v2-periphery/contracts/",
    ":@uniswap/v3-core/contracts/=lib/v3-core/contracts/",
    ":@uniswap/v3-periphery/contracts/=lib/v3-periphery/contracts/",
    ":ds-test/=lib/forge-std/lib/ds-test/src/",
    ":forge-std/=lib/forge-std/src/"
  ]
}