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// SPDX-License-Identifier: MIT
pragma solidity =0.8.19;

import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import {ITokenPublicRaise} from "./interfaces/ITokenPublicRaise.sol";

/**
 * @title TokenPublicRaiseUpgradeable
 * @notice Fixed-rate public raise that accepts native currency and accounts purchased token amounts per depositor.
 * @dev
 * - Price is expressed as `tokenPricePerOneNative` = tokens per 1e18 native units (wei).
 *   Example: if 1 ETH buys 1,000 tokens with 18 decimals, set `tokenPricePerOneNative = 1000e18`.
 * - Enforces a global cap (`totalDepositCap`) and a per-user cap (`maxDepositAmount`).
 * - Tracks per-user deposited native value (`userDeposited`) and purchased tokens (`userTokensAllocated`).
 * - Uses {Ownable2StepUpgradeable} for admin operations and {ReentrancyGuardUpgradeable} to protect deposit paths.
 *
 * Upgradeability:
 * - The implementation constructor disables initializers. Use {initialize} once on the proxy.
 */
contract TokenPublicRaiseUpgradeable is ITokenPublicRaise, Ownable2StepUpgradeable, ReentrancyGuardUpgradeable {
    /**
     * @notice Destination address to receive collected native funds.
     */
    address public treasury;

    /**
     * @notice Inclusive sale start timestamp.
     */
    uint256 public startTimestamp;

    /**
     * @notice Inclusive sale end timestamp.
     */
    uint256 public endTimestamp;

    /**
     * @notice Suggested minimum amount per deposit transaction (native units).
     */
    uint256 public minDepositAmount;

    /**
     * @notice Maximum total amount a single user is allowed to deposit (native units).
     */
    uint256 public maxDepositAmount;

    /**
     * @notice Global cap for all deposits combined (native units).
     */
    uint256 public totalDepositCap;

    /**
     * @notice Price: number of sale tokens received per 1e18 units of native currency.
     * @dev tokensOut = `msg.value * tokenPricePerOneNative / 1e18`.
     */
    uint256 public tokenPricePerOneNative;

    /**
     * @notice Total native currency deposited into the raise so far.
     */
    uint256 public totalDeposited;

    /**
     * @notice Per-user native currency deposited into the raise.
     */
    mapping(address user => uint256) public userDeposited;

    /**
     * @notice Per-user amount of tokens accounted as purchased.
     * @dev This contract only accounts purchases; it does not transfer sale tokens.
     */
    mapping(address user => uint256) public userTokensAllocated;

    /** 
     * @dev Reverts when `msg.value` is below the minimum accepted amount for a context.
     */
    error DepositBelowMin();

    /**
     * @dev Reverts when a user attempts to exceed the per-user cap.
     */
    error DepositAboveMax();

    /**
     * @dev Reverts when the attempted deposit would exceed the global cap.
     */
    error DepositCapReached();

    /**
     * @dev Reverts on zero amount where non-zero is required.
     */
    error AmountZero();

    /**
     * @dev Reverts on zero address where non-zero is required.
     */
    error AddressZero();

    /**
     * @dev Reverts if the raise is not currently active (not started or already finished).
     */
    error RaiseNotActive();

    /**
     * @dev Reverts if timestamps are invalid (e.g., end <= start).
     */
    error InvalidRaiseWindow();

    /**
     * @dev Reverts if provided limit values are inconsistent (e.g., min > max).
     */
    error InvalidDepositLimits();

    /**
     * @dev Reverts if a withdrawal is attempted before the raise has ended.
     */
    error RaiseNotEnded();

    /**
     * @dev Reverts if native currency transfer via call failed.
     */
    error NativeTransferFailed();

    /**
     * @dev Disable initializers on the implementation instance.
     */
    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Initializes the raise configuration.
     * @dev Callable once on the proxy. Emits {ExchangeRateUpdated}, {TreasuryUpdated},
     *      {DepositLimitsUpdated}, and {RaiseWindowUpdated}.
     * @param startTimestamp_ Inclusive sale start timestamp.
     * @param endTimestamp_ Inclusive sale end timestamp.
     * @param minDepositAmount_ Suggested minimum per-user deposit (native units).
     * @param maxDepositAmount_ Maximum per-user total deposit (native units).
     * @param totalDepositCap_ Global cap across all users (native units).
     * @param tokenPricePerOneNative_ Tokens per 1e18 native units.
     * @param treasury_ Destination address for collected native funds.
     */
    function initialize(uint256 startTimestamp_, uint256 endTimestamp_, uint256 minDepositAmount_, uint256 maxDepositAmount_, uint256 totalDepositCap_, uint256 tokenPricePerOneNative_, address treasury_) external initializer {
        __Ownable_init();
        __Ownable2Step_init();
        __ReentrancyGuard_init();

        _setTreasury(treasury_);
        _setDepositLimits(minDepositAmount_, maxDepositAmount_, totalDepositCap_);
        _setRaiseWindow(startTimestamp_, endTimestamp_);
        _setTokenPricePerOneNative(tokenPricePerOneNative_);
    }

    /**
     * @notice Deposits native currency into the raise at the current fixed price.
     * @dev
     * - Reverts if the raise is inactive.
     * - Caps the accepted amount by both global and per-user remaining allowances.
     * - Accounts purchased tokens using `tokenPricePerOneNative`.
     * - Emits {Deposited}.
     */
    function deposit() payable external nonReentrant {
        _deposit();
    }

    /**
     * @notice Fallback deposit path to accept plain native transfers during the active window.
     * @dev Mirrors {deposit}. Emits {Deposited}.
     */
    receive() external payable nonReentrant {
        _deposit();
    }

    /**
     * @notice Withdraws the entire native balance to the treasury after the raise has ended.
     * @dev
     * - Only callable by the owner.
     * - Reverts if `block.timestamp <= endTimestamp` (raise not finished yet).
     * - Reverts if there is no balance to withdraw.
     * - Uses checks-effects-interactions and {nonReentrant}.
     * - Emits {TreasuryWithdrawn}.
     */
    function withdrawToTreasury() external onlyOwner nonReentrant {
        if (block.timestamp <= endTimestamp) revert RaiseNotEnded();

        uint256 amount = address(this).balance;
        _revertIfZero(amount);

        (bool ok, ) = payable(treasury).call{value: amount}("");
        if (!ok) revert NativeTransferFailed();

        emit TreasuryWithdrawn(treasury, amount);
    }

    /**
     * @notice Updates the fixed exchange rate (tokens per 1e18 native units).
     * @dev
     * Requirements:
     * - Caller must be the owner.
     * - `tokenPricePerOneNative_` must be non-zero.
     *
     * Emits:
     * - {ExchangeRateUpdated}.
     *
     * Reverts:
     * - {AmountZero} if `tokenPricePerOneNative_` is zero.
     * @param tokenPricePerOneNative_ New price (tokens per 1e18 native units).
     */
    function setTokenPricePerOneNative(uint256 tokenPricePerOneNative_) external onlyOwner {
        _setTokenPricePerOneNative(tokenPricePerOneNative_);
    }

    /**
     * @notice Updates the treasury address.
     * @dev Only callable by the owner. Emits {TreasuryUpdated}.
     * @param treasury_ The new treasury address.
     */
    function setTreasury(address treasury_) external onlyOwner {
        _setTreasury(treasury_);
    }

    /**
     * @notice Updates min/per-user/global deposit limits.
     * @dev Only callable by the owner. Emits {DepositLimitsUpdated}.
     * @param minDepositAmount_ Suggested minimum per-tx deposit (native units).
     * @param maxDepositAmount_ Maximum per-user total deposit (native units).
     * @param totalDepositCap_ Global cap across all users (native units).
     */
    function setDepositLimits(uint256 minDepositAmount_, uint256 maxDepositAmount_, uint256 totalDepositCap_) external onlyOwner {
        _setDepositLimits(minDepositAmount_, maxDepositAmount_, totalDepositCap_);
    }

    /**
     * @notice Updates the start/end timestamps of the raise window.
     * @dev Only callable by the owner. Emits {RaiseWindowUpdated}.
     * @param startTimestamp_ Inclusive sale start timestamp.
     * @param endTimestamp_ Inclusive sale end timestamp.
     */
    function setRaiseWindow(uint256 startTimestamp_, uint256 endTimestamp_) external onlyOwner {
        _setRaiseWindow(startTimestamp_, endTimestamp_);
    }

    /**
     * @notice Returns the maximum additional native amount `user_` can still deposit.
     * @dev
     * - If the raise is inactive, returns 0.
     * - Computed as `min(globalRemaining, perUserRemaining)`.
     * - Uses saturating logic for `globalRemaining` and `perUserRemaining`.
     * @param user_ The user address to query.
     * @return maxAllowed The maximum additional deposit amount in native units.
     */
    function maxDeposit(address user_) public view returns(uint256 maxAllowed) {
        if (!isRaiseActive()) {
            return 0;
        }

        uint256 globalRemaining = totalDeposited >= totalDepositCap
            ? 0
            : (totalDepositCap - totalDeposited);

        uint256 already = userDeposited[user_];
        uint256 userRemaining = maxDepositAmount > already ? (maxDepositAmount - already) : 0;

        maxAllowed = globalRemaining < userRemaining ? globalRemaining : userRemaining;
    }

    /**
     * @notice Returns whether the raise window is currently active.
     * @dev Active iff `block.timestamp` is within [startTimestamp, endTimestamp].
     */
    function isRaiseActive() public view returns(bool) {
        return block.timestamp >= startTimestamp && block.timestamp <= endTimestamp;
    }

    /**
     * @notice Returns a compact snapshot of global config/state and the user’s counters.
     * @param user_ The user address to query.
     * @return active Whether the raise is active.
     * @return start Start timestamp.
     * @return end End timestamp.
     * @return min Suggested minimum per-tx deposit.
     * @return max Maximum per-user deposit.
     * @return globalCap Global deposit cap.
     * @return price Tokens per 1e18 native units.
     * @return totalIn Total native deposited.
     * @return userIn User’s native deposited.
     * @return userOut User’s accounted purchased tokens.
     * @return userMaxDeposit User's max deposit amount available for deposit
     */
    function getInfo(address user_) external view returns(
        bool active,
        uint256 start,
        uint256 end,
        uint256 min,
        uint256 max,
        uint256 globalCap,
        uint256 price,
        uint256 totalIn,
        uint256 userIn,
        uint256 userOut,
        uint256 userMaxDeposit
    ) {
        active = isRaiseActive();
        start = startTimestamp;
        end = endTimestamp;
        min = minDepositAmount;
        max = maxDepositAmount;
        globalCap = totalDepositCap;
        price = tokenPricePerOneNative;
        totalIn = totalDeposited;
        if(user_ != address(0)) {
            userIn = userDeposited[user_];
            userOut = userTokensAllocated[user_];
            userMaxDeposit = maxDeposit(user_);
        }
    }

    /**
     * @dev Core deposit logic shared by {deposit} and {receive}.
     *      Emits {Deposited}.
     *
     * Reverts:
     * - {RaiseNotActive} if not active.
     * - {DepositCapReached} if global cap is already reached.
     * - {DepositAboveMax} if the sender already reached the per-user cap.
     * - {AmountZero} if the accepted amount or tokens out evaluates to zero.
     */
    function _deposit() internal {
        if(!isRaiseActive()) {
            revert RaiseNotActive();
        }
        uint256 amount = msg.value;
        _revertIfZero(amount);

        uint256 globalRemaining = totalDeposited >= totalDepositCap
            ? 0
            : (totalDepositCap - totalDeposited);

        if (globalRemaining == 0) revert DepositCapReached();

        uint256 maxLimit = maxDeposit(_msgSender());

        if (maxLimit == 0 || amount > maxLimit) revert DepositAboveMax();

        if (amount + userDeposited[_msgSender()] < minDepositAmount) revert DepositBelowMin();

        uint256 tokensOut = amount * tokenPricePerOneNative / 1e18;

        _revertIfZero(tokensOut);

        totalDeposited += amount;
        userDeposited[_msgSender()] += amount;
        userTokensAllocated[_msgSender()] += tokensOut;

        emit Deposited(_msgSender(), amount, tokensOut);
    }

    /**
     * @dev Internal setter for the treasury address.
     *      Emits {TreasuryUpdated}.
     * @param treasury_ Non-zero treasury address.
     */
    function _setTreasury(address treasury_) internal {
        _revertIfZero(treasury_);
        treasury = treasury_;
        emit TreasuryUpdated(treasury_);
    }

    /**
     * @dev Internal setter for deposit limits.
     *      Emits {DepositLimitsUpdated}.
     * @param minDepositAmount_ Suggested minimum per-tx deposit.
     * @param maxDepositAmount_ Maximum per-user deposit.
     * @param totalDepositCap_ Global cap across all users.
     *
     * Reverts:
     * - {AmountZero} if any max or total value is zero (as checked).
     * - {InvalidDepositLimits} if `minDepositAmount_ > maxDepositAmount_`.
     */
    function _setDepositLimits(uint256 minDepositAmount_, uint256 maxDepositAmount_, uint256 totalDepositCap_) internal {
        _revertIfZero(maxDepositAmount_);
        _revertIfZero(totalDepositCap_);

        if(minDepositAmount_ > maxDepositAmount_) revert InvalidDepositLimits();

        minDepositAmount = minDepositAmount_;
        maxDepositAmount = maxDepositAmount_;
        totalDepositCap = totalDepositCap_;

        emit DepositLimitsUpdated(minDepositAmount_, maxDepositAmount_, totalDepositCap_);
    }

    /**
     * @dev Internal setter for the exchange rate (tokens per 1e18 native units).
     *
     * Requirements:
     * - `tokenPricePerOneNative_` must be non-zero.
     *
     * Emits:
     * - {ExchangeRateUpdated}.
     *
     * Reverts:
     * - {AmountZero} if `tokenPricePerOneNative_ == 0`.
     * @param tokenPricePerOneNative_ New price to set.
     */
    function _setTokenPricePerOneNative(uint256 tokenPricePerOneNative_) internal {
        _revertIfZero(tokenPricePerOneNative_);
        tokenPricePerOneNative = tokenPricePerOneNative_;
        emit ExchangeRateUpdated(tokenPricePerOneNative_);
    }

    /**
     * @dev Internal setter for start/end timestamps.
     *      Emits {RaiseWindowUpdated}.
     * @param startTimestamp_ Inclusive start timestamp.
     * @param endTimestamp_ Inclusive end timestamp.
     *
     * Reverts:
     * - {AmountZero} if either timestamp is zero.
     * - {InvalidRaiseWindow} if `endTimestamp_ <= startTimestamp_`.
     */
    function _setRaiseWindow(uint256 startTimestamp_, uint256 endTimestamp_) internal {
        _revertIfZero(startTimestamp_);
        _revertIfZero(endTimestamp_);

        if (endTimestamp_ <= startTimestamp_) revert InvalidRaiseWindow();

        startTimestamp = startTimestamp_;
        endTimestamp = endTimestamp_;
        emit RaiseWindowUpdated(startTimestamp_, endTimestamp_);
    }

    /**
     * @dev Reverts if `addr_` is the zero address.
     * @param addr_ Address to check.
     */
    function _revertIfZero(address addr_) internal pure {
        if (addr_ == address(0)) revert AddressZero();
    }
    
    /**
     * @dev Reverts if `amount_` is zero.
     * @param amount_ Amount to check.
     */
    function _revertIfZero(uint256 amount_) internal pure {
        if (amount_ == 0) revert AmountZero();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.0;

import "./OwnableUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
    address private _pendingOwner;

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

    function __Ownable2Step_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable2Step_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        return _pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
        _transferOwnership(sender);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
 *
 * By default, the owner account will be the one that deploys the contract. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @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 {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

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

pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ReentrancyGuardUpgradeable is Initializable {
    // 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;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _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;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// 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 AddressUpgradeable {
    /**
     * @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: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    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;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.19;

/**
 * @title ITokenPublicRaise
 * @notice Interface for a fixed-rate public raise that accepts native currency and
 *         accounts purchased token amounts per depositor.
 */
interface ITokenPublicRaise {
    /**
     * @notice Emitted on a successful deposit during the active raise window.
     * @param user      Depositor address.
     * @param amountIn  Accepted native amount in wei (may be capped by per-user/global limits).
     * @param tokensOut Accounted amount of sale tokens purchased for `amountIn`
     *                  using the current fixed exchange rate.
     */
    event Deposited(address indexed user, uint256 amountIn, uint256 tokensOut);

    /**
     * @notice Emitted when the treasury address is updated by the owner.
     * @param newTreasury The new destination address for collected native funds.
     */
    event TreasuryUpdated(address indexed newTreasury);

    /**
     * @notice Emitted when deposit limits are updated by the owner.
     * @param minDepositAmount Suggested minimum per-transaction deposit (native units, wei).
     * @param maxDepositAmount Maximum total native amount a single user may deposit (wei).
     * @param totalDepositCap  Global cap for total native deposits across all users (wei).
     */
    event DepositLimitsUpdated(uint256 minDepositAmount, uint256 maxDepositAmount, uint256 totalDepositCap);

    /**
     * @notice Emitted when the raise window (start/end timestamps) is updated by the owner.
     * @param startTimestamp Inclusive start timestamp.
     * @param endTimestamp   Inclusive end timestamp.
     */
    event RaiseWindowUpdated(uint256 startTimestamp, uint256 endTimestamp);

    /**
     * @notice Emitted when the fixed exchange rate is updated by the owner.
     * @dev The rate is expressed as "tokens per 1e18 native units".
     * @param tokenPricePerOneNative Number of tokens allocated per 1e18 native units (wei).
     */
    event ExchangeRateUpdated(uint256 tokenPricePerOneNative);

    /**
     * @notice Emitted when native funds are withdrawn to the treasury after the raise ends.
     * @param treasury Treasury address that received the funds.
     * @param amount   Amount of native currency (wei) transferred to `treasury`.
     */
    event TreasuryWithdrawn(address indexed treasury, uint256 amount);

    /**
     * @notice Initializes the raise configuration (proxy initializer).
     * @param startTimestamp_          Inclusive sale start timestamp.
     * @param endTimestamp_            Inclusive sale end timestamp.
     * @param minDepositAmount_        Suggested minimum per-transaction deposit (wei).
     * @param maxDepositAmount_        Maximum total native amount per user (wei).
     * @param totalDepositCap_         Global cap across all users (wei).
     * @param tokenPricePerOneNative_  Tokens per 1e18 native units (wei-denominated rate).
     * @param treasury_                Destination address for collected native funds.
     */
    function initialize(
        uint256 startTimestamp_,
        uint256 endTimestamp_,
        uint256 minDepositAmount_,
        uint256 maxDepositAmount_,
        uint256 totalDepositCap_,
        uint256 tokenPricePerOneNative_,
        address treasury_
    ) external;

    /**
     * @notice Deposits native currency during the active raise window at the fixed rate.
     * @dev The effective accepted amount may be capped by per-user and/or global remaining allowances.
     */
    function deposit() external payable;

    /**
     * @notice Withdraws the entire native balance to the treasury after the raise has ended.
     * @dev Only callable by the owner in the implementation.
     */
    function withdrawToTreasury() external;

    /**
     * @notice Updates the fixed exchange rate (tokens per 1e18 native units).
     * @param tokenPricePerOneNative_ New price (tokens per 1e18 native units).
     */
    function setTokenPricePerOneNative(uint256 tokenPricePerOneNative_) external;

    /**
     * @notice Updates the treasury address.
     * @param treasury_ New treasury address.
     */
    function setTreasury(address treasury_) external;

    /**
     * @notice Updates min/per-user/global deposit limits.
     * @param minDepositAmount_ Suggested minimum per-transaction deposit (wei).
     * @param maxDepositAmount_ Maximum total native amount per user (wei).
     * @param totalDepositCap_  Global cap across all users (wei).
     */
    function setDepositLimits(
        uint256 minDepositAmount_,
        uint256 maxDepositAmount_,
        uint256 totalDepositCap_
    ) external;

    /**
     * @notice Updates the start/end timestamps of the raise window.
     * @param startTimestamp_ Inclusive start timestamp.
     * @param endTimestamp_   Inclusive end timestamp.
     */
    function setRaiseWindow(uint256 startTimestamp_, uint256 endTimestamp_) external;

    /**
     * @notice Returns the maximum additional native amount `user_` can still deposit (in wei).
     * @param user_ The user address to query.
     * @return maxAllowed Maximum additional deposit permitted for `user_`.
     */
    function maxDeposit(address user_) external view returns (uint256 maxAllowed);

    /**
     * @notice Returns whether the raise window is currently active.
     * @return active True if `block.timestamp` ∈ [startTimestamp, endTimestamp], false otherwise.
     */
    function isRaiseActive() external view returns (bool active);

    /**
     * @notice Returns a snapshot of global config/state and the user’s counters.
     * @param user_ Address to query (use zero address for global-only fields).
     * @return active         Whether the raise is active.
     * @return start          Start timestamp.
     * @return end            End timestamp.
     * @return min            Suggested minimum per-transaction deposit.
     * @return max            Maximum per-user deposit.
     * @return globalCap      Global deposit cap.
     * @return price          Tokens per 1e18 native units.
     * @return totalIn        Total native deposited.
     * @return userIn         User’s native deposited (0 for zero address).
     * @return userOut        User’s accounted purchased tokens (0 for zero address).
     * @return userMaxDeposit User’s remaining allowed deposit (0 for zero address).
     */
    function getInfo(address user_)
        external
        view
        returns (
            bool active,
            uint256 start,
            uint256 end,
            uint256 min,
            uint256 max,
            uint256 globalCap,
            uint256 price,
            uint256 totalIn,
            uint256 userIn,
            uint256 userOut,
            uint256 userMaxDeposit
        );
}

{
  "evmVersion": "paris",
  "viaIR": true,
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "metadata": {
    "bytecodeHash": "none"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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