// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

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

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

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

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * 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 Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _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);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

// 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
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/Pausable.sol";

contract TokenDeposit is ReentrancyGuard, Ownable, Pausable {
    // Configurable limits
    uint256 public minDeposit;
    uint256 public maxDeposit;
    uint256 public hardCap;
    
    // State variables
    uint256 public totalRaised;
    mapping(address => uint256) public deposits;
    mapping(address => bool) public hasMaxDeposit;
    
    // Events
    event Deposited(address indexed user, uint256 amount, uint256 totalDeposited);
    event Withdrawn(address indexed owner, uint256 amount);
    event LimitsUpdated(uint256 minDeposit, uint256 maxDeposit, uint256 hardCap);
    
    // Custom errors
    error DepositTooLow();
    error DepositTooHigh();
    error WalletMaxReached();
    error HardCapReached();
    error NoFundsToWithdraw();
    error WithdrawalFailed();
    error InvalidLimits();
    error InvalidAmount();
    
    constructor(uint256 _minDeposit, uint256 _maxDeposit, uint256 _hardCap) {
        if (_minDeposit >= _maxDeposit || _maxDeposit > _hardCap) revert InvalidLimits();
        minDeposit = _minDeposit;
        maxDeposit = _maxDeposit;
        hardCap = _hardCap;
    }

    modifier validDeposit(uint256 _amount) {
        if (_amount < minDeposit) revert DepositTooLow();
        if (_amount > maxDeposit) revert DepositTooHigh();
        if (hasMaxDeposit[msg.sender]) revert WalletMaxReached();
        if (deposits[msg.sender] + _amount > maxDeposit) revert WalletMaxReached();
        if (totalRaised + _amount > hardCap) revert HardCapReached();
        _;
    }

    function deposit() external payable 
        nonReentrant 
        whenNotPaused 
        validDeposit(msg.value) 
    {
        deposits[msg.sender] += msg.value;
        totalRaised += msg.value;
        
        if (deposits[msg.sender] >= maxDeposit) {
            hasMaxDeposit[msg.sender] = true;
        }
        
        emit Deposited(msg.sender, msg.value, deposits[msg.sender]);
    }

    function withdraw() external onlyOwner nonReentrant {
        uint256 balance = address(this).balance;
        if (balance == 0) revert NoFundsToWithdraw();
        
        (bool success, ) = payable(owner()).call{value: balance}("");
        if (!success) revert WithdrawalFailed();
        
        emit Withdrawn(owner(), balance);
    }

    function emergencyWithdraw() external onlyOwner nonReentrant whenPaused {
        uint256 balance = address(this).balance;
        if (balance == 0) revert NoFundsToWithdraw();
        
        (bool success, ) = payable(owner()).call{value: balance}("");
        if (!success) revert WithdrawalFailed();
        
        emit Withdrawn(owner(), balance);
    }

    function updateLimits(
        uint256 _minDeposit,
        uint256 _maxDeposit,
        uint256 _hardCap
    ) external onlyOwner {
        if (_minDeposit >= _maxDeposit || _maxDeposit > _hardCap) revert InvalidLimits();
        minDeposit = _minDeposit;
        maxDeposit = _maxDeposit;
        hardCap = _hardCap;
        emit LimitsUpdated(_minDeposit, _maxDeposit, _hardCap);
    }

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }

    // View functions
    function getDeposit(address _user) external view returns (uint256) {
        return deposits[_user];
    }
    
    function getContractBalance() external view returns (uint256) {
        return address(this).balance;
    }
    
    function canDeposit(address _user, uint256 _amount) external view returns (bool) {
        return !hasMaxDeposit[_user] && 
               deposits[_user] + _amount <= maxDeposit &&
               totalRaised + _amount <= hardCap &&
               _amount >= minDeposit &&
               _amount <= maxDeposit;
    }

    receive() external payable {
        revert("Use deposit function");
    }
    
    fallback() external payable {
        revert("Use deposit function");
    }
}

{
  "compilationTarget": {
    "contracts/TokenDeposit.sol": "TokenDeposit"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}