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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;

import {SPumpMainToken} from "./SPumpMainToken.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract SPumpAirdrop is Ownable(msg.sender) {
    mapping(address => bool) public claimed;
    mapping(address => uint256) public referralAmount;
    mapping(address => uint256) public referralBalance;

    uint256 public BONUS_AMOUNT = 500000000000000000000;
    uint256 public BONUS_AMOUNT_REFERRER = 500000000000000000000;
    SPumpMainToken public token;
    address public signerAddress;

    constructor(address _signer) {
        token = new SPumpMainToken("Scroll Pump Token", "PUMP", 18, msg.sender);

        signerAddress = _signer;
    }

    // OnlyOwner functions to update the BONUS_AMOUNT
    function setBonusAmount(uint256 newBonusAmount) external onlyOwner {
        BONUS_AMOUNT = newBonusAmount;
    }

    // OnlyOwner functions to update the BONUS_AMOUNT_REFERRER
    function setBonusAmountReferrer(
        uint256 newBonusAmountReferrer
    ) external onlyOwner {
        BONUS_AMOUNT_REFERRER = newBonusAmountReferrer;
    }

    // OnlyOwner function to update the signerAddress
    function setSignerAddress(address newSignerAddress) external onlyOwner {
        signerAddress = newSignerAddress;
    }

    function claim(
        uint256 amount,
        bytes calldata signature,
        address refUser
    ) public {
        require(
            !claimed[msg.sender],
            "Tokens have already been claimed by this address."
        );
        claimed[msg.sender] = true;

        bool verifyResult = verify(msg.sender, amount, signature);
        require(verifyResult, "Sign not valid");

        if (refUser != address(0)) {
            require(msg.sender != refUser, "Self Ref");

            amount += BONUS_AMOUNT;
            referralBalance[refUser] += BONUS_AMOUNT_REFERRER;
            referralAmount[refUser] += 1;
        }

        token.updateLockValue(msg.sender, token.locked(msg.sender) + amount);
        token.mint(msg.sender, amount);
    }

    function claimReferralBonus() public {
        uint256 bonus = referralBalance[msg.sender];
        require(bonus > 0, "No referral bonus available.");

        referralBalance[msg.sender] = 0;

        token.updateLockValue(msg.sender, token.locked(msg.sender) + bonus);
        token.mint(msg.sender, bonus);
    }

    function verify(
        address _address,
        uint256 amount,
        bytes memory signature
    ) private view returns (bool) {
        bytes32 messageHash = getMessageHash(_address, amount);
        bytes32 ethSignedMessageHash = getEthSignedMessageHash(messageHash);

        return recoverSigner(ethSignedMessageHash, signature) == signerAddress;
    }

    function getMessageHash(
        address _address,
        uint256 _amount
    ) private pure returns (bytes32) {
        return keccak256(abi.encodePacked(_address, _amount));
    }

    function getEthSignedMessageHash(
        bytes32 _messageHash
    ) private pure returns (bytes32) {
        return
            keccak256(
                abi.encodePacked(
                    "\x19Ethereum Signed Message:\n32",
                    _messageHash
                )
            );
    }

    function recoverSigner(
        bytes32 _ethSignedMessageHash,
        bytes memory _signature
    ) private pure returns (address) {
        (bytes32 r, bytes32 s, uint8 v) = splitSignature(_signature);

        return ecrecover(_ethSignedMessageHash, v, r, s);
    }

    function splitSignature(
        bytes memory sig
    ) private pure returns (bytes32 r, bytes32 s, uint8 v) {
        require(sig.length == 65, "invalid signature length");

        assembly {
            // first 32 bytes, after the length prefix
            r := mload(add(sig, 32))
            // second 32 bytes
            s := mload(add(sig, 64))
            // final byte (first byte of the next 32 bytes)
            v := byte(0, mload(add(sig, 96)))
        }

        // implicitly return (r, s, v)
    }

    function verify_split(
        string memory _message,
        uint8 _v,
        bytes32 _r,
        bytes32 _s
    ) private pure returns (address) {
        bytes memory prefix = "\x19Ethereum Signed Message:\n32";
        bytes32 _data = keccak256(abi.encodePacked(_message));
        bytes32 hash = keccak256(abi.encodePacked(prefix, _data));
        address signer = ecrecover(hash, _v, _r, _s);
        return signer;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.25;

import {ERC20} from "solmate/src/tokens/ERC20.sol";

error Forbidden();
error NotOwner();
error Unauthorized();

contract SPumpMainToken is ERC20 {
    address[] public holders;
    mapping(address => bool) public isHolder;

    address public owner;
    mapping(address => bool) public isMinter;
    mapping(address => uint256) public locked;

    bool public isRestricted = true;

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        address _owner
    ) ERC20(_name, _symbol, _decimals) {
        owner = _owner;
    }

    modifier onlyOwner() {
        if (msg.sender != owner) revert NotOwner();
        _;
    }

    modifier onlyAuthorized() {
        if (msg.sender != owner && !isMinter[msg.sender]) revert Unauthorized();
        _;
    }

    function updateRestricted(bool value) public onlyAuthorized {
        isRestricted = value;
    }

    function updateLockValue(
        address _address,
        uint256 amount
    ) public onlyAuthorized {
        locked[_address] = amount;
    }

    function _addHolder(address holder) private {
        if (!isHolder[holder]) {
            holders.push(holder);
            isHolder[holder] = true;
        }
    }

    function transfer(
        address to,
        uint256 amount
    ) public override returns (bool) {
        if (
            isRestricted &&
            (balanceOf[msg.sender] - amount < locked[msg.sender])
        ) revert Forbidden();

        _addHolder(to);
        return super.transfer(to, amount);
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public override returns (bool) {
        if (isRestricted && balanceOf[from] - amount < locked[from])
            revert Forbidden();

        _addHolder(to);
        return super.transferFrom(from, to, amount);
    }

    function approve(
        address spender,
        uint256 amount
    ) public override returns (bool) {
        return super.approve(spender, amount);
    }

    /// @notice Mint new tokens.
    /// @param to Address to which tokens will be minted
    /// @param amount Amount of tokens to mint
    function mint(address to, uint256 amount) public onlyAuthorized {
        _mint(to, amount);
        _addHolder(to);
    }

    /// @notice Authorizes an address to mint new tokens.
    /// @param minter Address to authorize
    function addMinter(address minter) public onlyOwner {
        isMinter[minter] = true;
    }

    /// @notice Revokes minting authorization from an address.
    /// @param minter Address to revoke authorization from
    function removeMinter(address minter) public onlyOwner {
        isMinter[minter] = false;
    }

    /// @notice Transfers ownership of the contract to a new address.
    /// @param newOwner Address of the new owner
    function transferOwnership(address newOwner) public onlyOwner {
        owner = newOwner;
    }

    /// Get all addresses who have ever held the token with their balances
    /// @return The holders and their balances
    /// @notice Some holders may have a zero balance
    function getHoldersWithBalance(
        uint256 offset,
        uint256 limit
    ) public view returns (address[] memory, uint256[] memory) {
        uint256 length = holders.length;
        if (offset >= length) {
            return (new address[](0), new uint256[](0));
        }

        uint256 end = offset + limit;
        if (end > length) {
            end = length;
        }

        address[] memory resultAddresses = new address[](end - offset);
        uint256[] memory resultBalances = new uint256[](end - offset);

        for (uint256 i = offset; i < end; i++) {
            address holder = holders[i];
            resultAddresses[i - offset] = holder;
            resultBalances[i - offset] = balanceOf[holder];
        }

        return (resultAddresses, resultBalances);
    }

    /// Get all addresses who have ever held the token
    /// @return The holders
    /// @notice Some holders may have a zero balance
    function getHolders(
        uint256 offset,
        uint256 limit
    ) public view returns (address[] memory) {
        uint256 length = holders.length;
        if (offset >= length) {
            return new address[](0);
        }

        uint256 end = offset + limit;
        if (end > length) {
            end = length;
        }

        address[] memory result = new address[](end - offset);
        for (uint256 i = offset; i < end; i++) {
            result[i - offset] = holders[i];
        }

        return result;
    }

    /// Get the number of all addresses who have ever held the token
    /// @return The number of holders
    /// @notice Some holders may have a zero balance
    function getHoldersLength() public view returns (uint256) {
        return holders.length;
    }
}

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "viaIR": true,
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"BONUS_AMOUNT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BONUS_AMOUNT_REFERRER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"address","name":"refUser","type":"address"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"claimReferralBonus","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"referralAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"referralBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newBonusAmount","type":"uint256"}],"name":"setBonusAmount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newBonusAmountReferrer","type":"uint256"}],"name":"setBonusAmountReferrer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newSignerAddress","type":"address"}],"name":"setSignerAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signerAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract SPumpMainToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000002e6fd1ad952d9b7190e18dabc803ae935367d0a3

-----Decoded View---------------
Arg [0] : _signer (address): 0x2E6Fd1Ad952D9B7190e18dabc803Ae935367D0A3

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000002e6fd1ad952d9b7190e18dabc803ae935367d0a3