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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.19;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./BaseTemplate.sol";

/**
 * @author 0xMotoko
 * @title TemplateV1
 * @notice Minimal Proxy Platform-ish fork of the HegicInitialOffering.sol
 */
contract TemplateV1 is BaseTemplate, ReentrancyGuard {
    using SafeERC20 for IERC20;
    uint256 private constant TOKEN_UPPER_BOUND = 1e50;
    uint256 private constant TOKEN_BOTTOM_BOUND = 1e6;
    uint256 private constant ETH_UPPER_BOUND = 1_000_000_000 ether;
    /* Multiplier derived from the practical max number of digits for eth (18 + 8) + 1 to avoid rounding error. */
    uint256 private constant SCALE_FACTOR = 1e27;
    /* Minimum bidding amount is set to minimize the possibility of refunds. */
    uint256 private constant MIN_BID_AMOUNT = 0.001 ether;
    /// Fixed rate for calculate the reward score
    uint256 private constant REWARD_SCORE_RATE = 100;

    IERC20 public erc20onsale;
    uint256 public allocatedAmount;
    uint256 public minRaisedAmount;

    uint256 public totalRaised;
    mapping(address => uint256) public raised;

    constructor(
        address factory_,
        address feePool_,
        address distributor_
    ) BaseTemplate(factory_, feePool_, distributor_) {}

    /// @notice Initialize an auction
    /// @dev Expected to be called by the factory's deployAuction function
    /// @param owner_ Auction owner
    /// @param startingAt_ Timestamp when the auction starts
    /// @param eventDuration_ The duration of the auction in seconds
    /// @param token_ The token address to be auctioned
    /// @param allocatedAmount_ The amount of tokens to be auctioned
    /// @param minRaisedAmount_ The minimum amount of tokens to be raised for the auction to be regarded as a success
    function initialize(
        address owner_,
        uint256 startingAt_,
        uint256 eventDuration_,
        address token_,
        uint256 allocatedAmount_,
        uint256 minRaisedAmount_
    ) external payable onlyFactory returns (address, uint256) {
        require(!initialized, "This contract has already been initialized");
        initialized = true;

        require(
            msg.value == 0,
            "This contract does not accept the creation fee"
        );
        require(owner_ != address(0), "owner must be there");
        require(token_ != address(0), "Go with non null address.");
        require(
            allocatedAmount_ >= TOKEN_BOTTOM_BOUND,
            "allocatedAmount must be greater than or equal to 1e6."
        );
        require(
            allocatedAmount_ <= TOKEN_UPPER_BOUND,
            "allocatedAmount must be less than or equal to 1e50."
        );
        require(
            block.timestamp <= startingAt_,
            "startingAt must be in the future"
        );
        require(eventDuration_ >= 1 days, "event duration is too short");
        require(eventDuration_ <= 30 days, "event duration is too long");
        require(
            minRaisedAmount_ <= ETH_UPPER_BOUND,
            "minRaisedAmount must be less than or equal to 1e27."
        );

        owner = owner_;
        startingAt = startingAt_;
        closingAt = startingAt_ + eventDuration_;
        erc20onsale = IERC20(token_);
        allocatedAmount = allocatedAmount_;
        minRaisedAmount = minRaisedAmount_;

        emit Deployed(
            address(this),
            owner_,
            startingAt_,
            closingAt,
            token_,
            abi.encodePacked(address(0)),
            abi.encode(allocatedAmount_, minRaisedAmount_)
        );
        return (token_, allocatedAmount_);
    }

    receive() external payable {
        require(
            startingAt <= block.timestamp,
            "The offering has not started yet"
        );
        require(block.timestamp <= closingAt, "The offering has already ended");
        require(
            msg.value >= MIN_BID_AMOUNT,
            "The amount must be greater than or equal to 0.001ETH"
        );

        uint256 newTotalRaised = totalRaised + msg.value;
        require(
            newTotalRaised < SCALE_FACTOR,
            "totalRaised is unexpectedly high"
        );

        totalRaised = newTotalRaised;
        raised[msg.sender] += msg.value;
        emit Raised(msg.sender, address(0), msg.value);
    }

    /// @notice Claim allocated tokens
    /// @param participant The address of the user who contributed
    /// @param recipient The address of the user who received the token allocation
    function claim(
        address participant,
        address recipient
    ) external nonReentrant {
        require(
            block.timestamp > closingAt,
            "Early to claim. Sale is not finished."
        );
        uint256 raisedAmount = raised[participant];
        require(raisedAmount > 0, "You don't have any contribution.");
        raised[participant] = 0;

        uint256 erc20allocation = _calculateAllocation(
            raisedAmount,
            totalRaised,
            allocatedAmount
        );
        if (totalRaised >= minRaisedAmount && erc20allocation != 0) {
            if (msg.sender != participant && participant != recipient) {
                revert("participant or recipient invalid");
            }
            erc20onsale.safeTransfer(recipient, erc20allocation);

            IDistributor(distributor).addScore(
                participant,
                raisedAmount * REWARD_SCORE_RATE
            );

            emit Claimed(participant, recipient, raisedAmount, erc20allocation);
        } else {
            /* Refund process */
            (bool success, ) = payable(participant).call{value: raisedAmount}(
                ""
            );
            require(success, "transfer failed");
            emit Claimed(participant, recipient, raisedAmount, 0);
        }
    }

    /// @param us usershare
    /// @param tr totalraised
    /// @param aa allocatedamount
    /// @return al allocation
    function _calculateAllocation(
        uint256 us,
        uint256 tr,
        uint256 aa
    ) internal pure returns (uint256 al) {
        al = (((us * SCALE_FACTOR) / tr) * aa) / SCALE_FACTOR;
    }

    /// @notice Send raised Ether to the owner
    /// @dev The auction is finished, and enough Ether has been raised. The owner withdraws Ether, and contributors claim and receive their ERC-20 tokens.
    function withdrawRaisedETH() external nonReentrant {
        require(closingAt < block.timestamp, "Withdrawal unavailable yet.");
        require(
            totalRaised >= minRaisedAmount,
            "The required amount has not been raised!"
        );

        if (closingAt + 3 days >= block.timestamp) {
            uint256 minAllocation = _calculateAllocation(
                MIN_BID_AMOUNT,
                totalRaised,
                allocatedAmount
            );

            require(
                minAllocation > 0,
                "Refund candidates may exist. Withdrawal unavailable yet."
            );
        }

        uint256 gross = address(this).balance;
        uint256 fee = (gross) / 100;

        (bool feeSuccess, ) = payable(feePool).call{value: fee}("");
        require(feeSuccess, "Fee transfer failed");

        IDistributor(distributor).addScore(owner, gross * REWARD_SCORE_RATE);
        (bool success, ) = payable(owner).call{value: address(this).balance}(
            ""
        );
        require(success, "Withdraw failed");
    }

    /// @notice Send auction tokens back to the owner
    /// @dev The auction is finished, but the amount raised is not enough (Failed sale). The owner withdraws tokens, and contributors can get refunded.
    function withdrawERC20Onsale() external {
        require(closingAt < block.timestamp, "The offering must be completed");
        require(
            totalRaised < minRaisedAmount || totalRaised == 0,
            "The required amount has been raised!"
        );
        erc20onsale.safeTransfer(owner, allocatedAmount);
    }

    /// @notice Send tokens to the specified address
    /// @dev Expected to be used for funding the auction contract, to be delegate-called by the factory's deployAuction function
    /// @param token_ Auction token address
    /// @param amount_ Auction token amount
    /// @param to_ Receiver
    function initializeTransfer(
        address token_,
        uint256 amount_,
        address to_
    ) external onlyDelegateFactory {
        IERC20(token_).safeTransferFrom(msg.sender, to_, amount_);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.19;

import "./interfaces/IDistributor.sol";

/// @title BaseTemplate
/// @author DeFiGeek Community Japan
/// @notice Base template for each auction template
/// @dev Extend this contract for each auction template
contract BaseTemplate {
    /// Flags that manage instance initialization
    bool initialized;

    address immutable feePool;
    address immutable factory;
    address immutable distributor;
    address public owner;
    uint256 public startingAt;
    uint256 public closingAt;

    /// @notice Record deployed parameters
    /// @dev Use primitives for important information, bytes type compression for other information.
    /// @param deployedAddress Deployed address of an auction
    /// @param owner The address of auction owner
    /// @param startingAt  The timestamp when the auction starts
    /// @param closingAt The timestamp when the auction ends
    /// @param auctionToken The address of the token being auctioned
    /// @param raisedTokens Concatenated addresses of the raised tokens
    /// @param args Concatenated template-specific parameters in bytes
    event Deployed(
        address deployedAddress,
        address owner,
        uint256 startingAt,
        uint256 closingAt,
        address auctionToken,
        bytes raisedTokens,
        bytes args
    );

    /// @notice Record claim parameters
    /// @dev Emit this event to track claim information when participants claim
    /// @param participant The address of the user who contributed
    /// @param recipient The address of the user who received the token allocation
    /// @param userShare  The amount of the participant's contribution
    /// @param allocation The amount of the participant's token allocation
    event Claimed(
        address indexed participant,
        address indexed recipient,
        uint256 userShare,
        uint256 allocation
    );

    /// @notice Record raised parameters
    /// @dev Emit this event when the auction receives funds from participants to track raised information
    /// @param participant The address of the user who contributed
    /// @param token The address of the raised token
    /// @param amount  The amount of the raised token
    event Raised(address indexed participant, address token, uint256 amount);

    constructor(address factory_, address feePool_, address distributor_) {
        factory = factory_;
        feePool = feePool_;
        distributor = distributor_;
    }

    /// @dev Allow only owner of auction instance
    modifier onlyOwner() {
        require(msg.sender == owner, "You are not the owner.");
        _;
    }

    /// @dev Allow only delegatecall from factory
    modifier onlyDelegateFactory() {
        require(address(this) == factory, "You are not the factory.");
        _;
    }
    /// @dev Allow only call from factory
    modifier onlyFactory() {
        require(msg.sender == factory, "You are not the factory.");
        _;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.19;

interface IDistributor {
    function addScore(address targetAddress, uint256 amount) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"factory_","type":"address"},{"internalType":"address","name":"feePool_","type":"address"},{"internalType":"address","name":"distributor_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"participant","type":"address"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"userShare","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"allocation","type":"uint256"}],"name":"Claimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"deployedAddress","type":"address"},{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"uint256","name":"startingAt","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"closingAt","type":"uint256"},{"indexed":false,"internalType":"address","name":"auctionToken","type":"address"},{"indexed":false,"internalType":"bytes","name":"raisedTokens","type":"bytes"},{"indexed":false,"internalType":"bytes","name":"args","type":"bytes"}],"name":"Deployed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"participant","type":"address"},{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Raised","type":"event"},{"inputs":[],"name":"allocatedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"participant","type":"address"},{"internalType":"address","name":"recipient","type":"address"}],"name":"claim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"closingAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"erc20onsale","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner_","type":"address"},{"internalType":"uint256","name":"startingAt_","type":"uint256"},{"internalType":"uint256","name":"eventDuration_","type":"uint256"},{"internalType":"address","name":"token_","type":"address"},{"internalType":"uint256","name":"allocatedAmount_","type":"uint256"},{"internalType":"uint256","name":"minRaisedAmount_","type":"uint256"}],"name":"initialize","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token_","type":"address"},{"internalType":"uint256","name":"amount_","type":"uint256"},{"internalType":"address","name":"to_","type":"address"}],"name":"initializeTransfer","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"minRaisedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"raised","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"startingAt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalRaised","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawERC20Onsale","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawRaisedETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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0000000000000000000000003ee0952314739e2c4270f0ece989cf73f58912430000000000000000000000009823e00b87367bb7b461bd5ec22dc1eb0064c8690000000000000000000000003d095553fe2a3b138b31f9d47a26e2adf340c6a5

-----Decoded View---------------
Arg [0] : factory_ (address): 0x3Ee0952314739e2c4270F0ecE989cf73F5891243
Arg [1] : feePool_ (address): 0x9823E00b87367bB7B461Bd5eC22Dc1eB0064c869
Arg [2] : distributor_ (address): 0x3D095553fE2A3b138B31f9d47a26e2aDf340c6a5

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000003ee0952314739e2c4270f0ece989cf73f5891243
Arg [1] : 0000000000000000000000009823e00b87367bb7b461bd5ec22dc1eb0064c869
Arg [2] : 0000000000000000000000003d095553fe2a3b138b31f9d47a26e2adf340c6a5