LaunchToken

[
  {
    "inputs": [
      {
        "components": [
          {
            "internalType": "string",
            "name": "name",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "symbol",
            "type": "string"
          },
          {
            "internalType": "uint256",
            "name": "supply",
            "type": "uint256"
          },
          {
            "internalType": "address",
            "name": "pairToken",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "positionManager",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "dexFactory",
            "type": "address"
          },
          {
            "internalType": "uint24",
            "name": "poolFee",
            "type": "uint24"
          },
          {
            "internalType": "uint16",
            "name": "maxWalletBps",
            "type": "uint16"
          },
          {
            "internalType": "uint16",
            "name": "maxTxBps",
            "type": "uint16"
          },
          {
            "internalType": "uint32",
            "name": "restrictionBlocks",
            "type": "uint32"
          }
        ],
        "internalType": "struct LauncherTypes.TokenConfig",
        "name": "config",
        "type": "tuple"
      },
      {
        "components": [
          {
            "internalType": "address",
            "name": "deployer",
            "type": "address"
          },
          {
            "internalType": "string",
            "name": "logo",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "description",
            "type": "string"
          },
          {
            "components": [
              {
                "internalType": "string",
                "name": "telegram",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "twitter",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "discord",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "website",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "farcaster",
                "type": "string"
              }
            ],
            "internalType": "struct LauncherTypes.Socials",
            "name": "socials",
            "type": "tuple"
          }
        ],
        "internalType": "struct LauncherTypes.TokenInfo",
        "name": "info",
        "type": "tuple"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "constructor"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "allowance",
        "type": "uint256"
      },
      {
        "internalType": "uint256",
        "name": "needed",
        "type": "uint256"
      }
    ],
    "name": "ERC20InsufficientAllowance",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "sender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "balance",
        "type": "uint256"
      },
      {
        "internalType": "uint256",
        "name": "needed",
        "type": "uint256"
      }
    ],
    "name": "ERC20InsufficientBalance",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "approver",
        "type": "address"
      }
    ],
    "name": "ERC20InvalidApprover",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "receiver",
        "type": "address"
      }
    ],
    "name": "ERC20InvalidReceiver",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "sender",
        "type": "address"
      }
    ],
    "name": "ERC20InvalidSender",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      }
    ],
    "name": "ERC20InvalidSpender",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "account",
        "type": "address"
      }
    ],
    "name": "LaunchBlockBuyBlocked",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "account",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "amount",
        "type": "uint256"
      },
      {
        "internalType": "uint256",
        "name": "maxTx",
        "type": "uint256"
      }
    ],
    "name": "MaxTxExceeded",
    "type": "error"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "account",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "balanceAfter",
        "type": "uint256"
      },
      {
        "internalType": "uint256",
        "name": "maxWallet",
        "type": "uint256"
      }
    ],
    "name": "MaxWalletExceeded",
    "type": "error"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "owner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Approval",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "from",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "Transfer",
    "type": "event"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "owner",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      }
    ],
    "name": "allowance",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "spender",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "approve",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "account",
        "type": "address"
      }
    ],
    "name": "balanceOf",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "decimals",
    "outputs": [
      {
        "internalType": "uint8",
        "name": "",
        "type": "uint8"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "deployer",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "description",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "dexFactory",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "getTokenInfo",
    "outputs": [
      {
        "components": [
          {
            "internalType": "address",
            "name": "deployer",
            "type": "address"
          },
          {
            "internalType": "string",
            "name": "logo",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "description",
            "type": "string"
          },
          {
            "components": [
              {
                "internalType": "string",
                "name": "telegram",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "twitter",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "discord",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "website",
                "type": "string"
              },
              {
                "internalType": "string",
                "name": "farcaster",
                "type": "string"
              }
            ],
            "internalType": "struct LauncherTypes.Socials",
            "name": "socials",
            "type": "tuple"
          }
        ],
        "internalType": "struct LauncherTypes.TokenInfo",
        "name": "",
        "type": "tuple"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "launchBlock",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "launchFactory",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "liquidityPool",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "logo",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxTxAmount",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxTxBps",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxTxLimit",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxWalletAmount",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxWalletBps",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "maxWalletLimit",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "name",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "pairToken",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "poolFee",
    "outputs": [
      {
        "internalType": "uint24",
        "name": "",
        "type": "uint24"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "positionManager",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "restrictionBlocks",
    "outputs": [
      {
        "internalType": "uint32",
        "name": "",
        "type": "uint32"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "restrictionEndBlock",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "socials",
    "outputs": [
      {
        "components": [
          {
            "internalType": "string",
            "name": "telegram",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "twitter",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "discord",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "website",
            "type": "string"
          },
          {
            "internalType": "string",
            "name": "farcaster",
            "type": "string"
          }
        ],
        "internalType": "struct LauncherTypes.Socials",
        "name": "",
        "type": "tuple"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "symbol",
    "outputs": [
      {
        "internalType": "string",
        "name": "",
        "type": "string"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "totalSupply",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "transfer",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "from",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "to",
        "type": "address"
      },
      {
        "internalType": "uint256",
        "name": "value",
        "type": "uint256"
      }
    ],
    "name": "transferFrom",
    "outputs": [
      {
        "internalType": "bool",
        "name": "",
        "type": "bool"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]

// SPDX-License-Identifier: MIT

// throbbin.xyz
// x.com/throbbinxyz
// the bird with a boner

pragma solidity ^0.8.30;

// OpenZeppelin ERC-20 implementation.
// Verification requires @openzeppelin/contracts v5.2.0.
import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";

/// @notice Minimal interface used to resolve the Uniswap V3 liquidity pool.
interface IUniswapV3Factory {
    function getPool(address tokenA, address tokenB, uint24 fee) external view returns (address pool);
}

/// @notice Shared constructor and metadata types used by the launcher.
library LauncherTypes {
    /// @notice Public-facing social links associated with the token.
    struct Socials {
        string telegram;
        string twitter;
        string discord;
        string website;
        string farcaster;
    }

    /// @notice Immutable trading and launch configuration.
    struct TokenConfig {
        string name;
        string symbol;
        uint256 supply;
        address pairToken;
        address positionManager;
        address dexFactory;
        uint24 poolFee;
        uint16 maxWalletBps;
        uint16 maxTxBps;
        uint32 restrictionBlocks;
    }

    /// @notice Token metadata supplied by the launcher.
    struct TokenInfo {
        address deployer;
        string logo;
        string description;
        Socials socials;
    }
}

/// @title LaunchToken
/// @notice ERC-20 token with launch-block anti-buy protection and temporary
///         max-transaction / max-wallet restrictions.
/// @dev Comments do not affect the reproduced bytecode because verification
///      uses metadata.bytecodeHash = "none".
contract LaunchToken is ERC20 {
    error MaxWalletExceeded(address account, uint256 balanceAfter, uint256 maxWallet);
    error MaxTxExceeded(address account, uint256 amount, uint256 maxTx);
    error LaunchBlockBuyBlocked(address account);

    // Human-readable token metadata.
    LauncherTypes.TokenInfo private _tokenInfo;

    // Tracks cumulative pool purchases by transaction origin while restrictions
    // are active. This is intentionally keyed by tx.origin in the deployed code.
    mapping(address account => uint256 amount) private _originBought;

    // Launcher and DEX configuration fixed at deployment.
    address public immutable launchFactory;
    address public immutable pairToken;
    address public immutable positionManager;
    address public immutable dexFactory;
    uint24 public immutable poolFee;

    // Temporary launch restriction parameters.
    uint16 public immutable maxWalletBps;
    uint16 public immutable maxTxBps;
    uint32 public immutable restrictionBlocks;
    uint256 public immutable launchBlock;
    uint256 public immutable restrictionEndBlock;
    uint256 public immutable maxWalletAmount;
    uint256 public immutable maxTxAmount;

    constructor(LauncherTypes.TokenConfig memory config, LauncherTypes.TokenInfo memory info)
        ERC20(config.name, config.symbol)
    {
        // Record the launcher and immutable DEX configuration.
        launchFactory = msg.sender;
        pairToken = config.pairToken;
        positionManager = config.positionManager;
        dexFactory = config.dexFactory;
        poolFee = config.poolFee;

        // Convert basis-point limits into absolute token amounts.
        maxWalletBps = config.maxWalletBps;
        maxTxBps = config.maxTxBps;
        restrictionBlocks = config.restrictionBlocks;
        launchBlock = block.number;
        restrictionEndBlock =
            config.restrictionBlocks == 0 ? block.number : block.number + config.restrictionBlocks;
        maxWalletAmount = (config.supply * config.maxWalletBps) / 10_000;
        maxTxAmount = (config.supply * config.maxTxBps) / 10_000;

        // Persist display metadata and mint the full supply to the launcher.
        _tokenInfo = info;
        _mint(msg.sender, config.supply);
    }

    /// @notice Resolves the configured Uniswap V3 pool.
    function liquidityPool() public view returns (address) {
        return IUniswapV3Factory(dexFactory).getPool(address(this), pairToken, poolFee);
    }

    /// @notice Returns the absolute maximum wallet balance during restrictions.
    function maxWalletLimit() external view returns (uint256) {
        return maxWalletAmount;
    }

    /// @notice Returns the absolute maximum cumulative buy amount during restrictions.
    function maxTxLimit() external view returns (uint256) {
        return maxTxAmount;
    }

    /// @notice Returns all stored token metadata.
    function getTokenInfo() external view returns (LauncherTypes.TokenInfo memory) {
        return _tokenInfo;
    }

    /// @notice Returns the original token deployer recorded by the launcher.
    function deployer() external view returns (address) {
        return _tokenInfo.deployer;
    }

    /// @notice Returns the token logo URI.
    function logo() external view returns (string memory) {
        return _tokenInfo.logo;
    }

    /// @notice Returns the token description.
    function description() external view returns (string memory) {
        return _tokenInfo.description;
    }

    /// @notice Returns the configured social links.
    function socials() external view returns (LauncherTypes.Socials memory) {
        return _tokenInfo.socials;
    }

    /// @dev Applies launch-block protection and temporary trading restrictions
    ///      before delegating the balance update to OpenZeppelin ERC20.
    function _update(address from, address to, uint256 value) internal override {
        bool restrictionsActive = block.number > launchBlock && block.number <= restrictionEndBlock;
        address pool;
        bool onLaunchBlock = block.number == launchBlock;

        // Pool-dependent restrictions are disabled until the pool exists.
        if (restrictionsActive || onLaunchBlock) {
            pool = liquidityPool();
            if (pool == address(0)) {
                restrictionsActive = false;
                onLaunchBlock = false;
            }
        }

        // Block pool buys during the exact deployment block, except for the
        // launcher factory and the recorded deployer.
        if (
            onLaunchBlock &&
            value > 0 &&
            from == pool &&
            to != launchFactory &&
            to != _tokenInfo.deployer
        ) {
            revert LaunchBlockBuyBlocked(to);
        }

        if (restrictionsActive && value > 0) {
            // Limit cumulative pool buys by tx.origin with a 10% buffer over
            // the configured maximum transaction amount.
            if (from == pool && to != launchFactory && to != _tokenInfo.deployer) {
                uint256 bought = _originBought[tx.origin] + value;
                _originBought[tx.origin] = bought;
                uint256 maxBuy = (maxTxAmount * 11_000) / 10_000;
                if (maxBuy == 0 || bought > maxBuy) {
                    revert MaxTxExceeded(tx.origin, bought, maxBuy);
                }
            }

            // Enforce the maximum wallet amount for ordinary recipients.
            // Minting, the launcher, deployer, and pool are exempt.
            if (
                from != address(0) &&
                to != launchFactory &&
                to != _tokenInfo.deployer &&
                to != pool
            ) {
                uint256 balanceAfter = balanceOf(to) + value;
                if (balanceAfter > maxWalletAmount) {
                    revert MaxWalletExceeded(to, balanceAfter, maxWalletAmount);
                }
            }
        }

        super._update(from, to, value);
    }
}