// File: @openzeppelin/contracts/access/Ownable.sol



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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// File: @openzeppelin/contracts/utils/Context.sol



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

pragma solidity ^0.8.20;

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

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

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

// File: contracts/DUELVesting.sol



// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

contract VestingBase is Ownable {
    address duelToken;

    constructor(address _duelToken) Ownable(msg.sender) {
        duelToken = _duelToken;
    }

    function allocateDUEL(address, uint256) external virtual {}

    function allocateDUEL(address, uint256, uint256) external virtual {}

    function claimDUEL() external virtual {}
}

/// @title Core static vesting contract allowing for cliff and variable percentage releases
/// @author Haider
/// @notice Contract uses pre-approved DUEL amount to transferFrom() the owner()
/// @notice Deploy 3 versions: Private Sale, Team & Advisors, Operations & Marketing
contract StaticVesting is VestingBase {
    address icoContract;
    uint256[] releaseTimestamps; // 13 months day 1 timestamps
    uint16[] releasePercentages; // 13 months release percentage [0,0,0,10,10,10,...]
    mapping(address => uint256) public vestedAllocations; // wallet => total allocated
    mapping(address => uint256) public vestedClaims; // wallet => total claimed

    constructor(
        address _icoContract,
        address _duelToken,
        uint256[] memory _releaseTimestamps,
        uint16[] memory _releasePercentages
    ) VestingBase(_duelToken) {
        require(
            releaseTimestamps.length == releasePercentages.length,
            "Parameters length mismatch"
        );
        icoContract = _icoContract;
        releaseTimestamps = _releaseTimestamps;
        releasePercentages = _releasePercentages;
    }

    function updateReleaseParameters(
        uint256[] memory _releaseTimestamps,
        uint16[] memory _releasePercentages
    ) external onlyOwner {
        require(
            releaseTimestamps.length == releasePercentages.length,
            "Parameters length mismatch"
        );
        releaseTimestamps = _releaseTimestamps;
        releasePercentages = _releasePercentages;
    }

    function allocateDUEL(address wallet, uint256 amount) external override {
        require(_msgSender() == icoContract || _msgSender() == owner(), "Access forbidden");
        require(vestedAllocations[wallet] == 0, "Vesting already in progress");
        vestedAllocations[wallet] = amount;
    }

    function claimDUEL() external override {
        require(
            vestedAllocations[_msgSender()] > 0 &&
                vestedAllocations[_msgSender()] > vestedClaims[_msgSender()],
            "Nothing to claim"
        );

        uint16 cumulativePercentage = 0; // Cumulative percentage released so far
        for (uint8 i = 0; i < releaseTimestamps.length; i++) {
            if (releaseTimestamps[i] > block.timestamp) {
                break;
            }
            cumulativePercentage += releasePercentages[i];
        }

        uint256 availableClaim = (vestedAllocations[_msgSender()] *
            cumulativePercentage) / 100;
        require(
            availableClaim > vestedClaims[_msgSender()],
            "Period already claimed"
        );

        uint256 unclaimedTokens = availableClaim - vestedClaims[_msgSender()];
        vestedClaims[_msgSender()] += unclaimedTokens;
        IERC20(duelToken).transferFrom(owner(), _msgSender(), unclaimedTokens);
    }
}

/// @title Core dynamic vesting contract to be used upon RAINxDUEL conversion
/// @author Haider
/// @notice Contract uses pre-approved DUEL amount to transferFrom() the owner()
/// @dev Does not allow for two separate schedules for same wallet
contract DynamicVesting is VestingBase {
	mapping(address => uint256) public startTimes; // wallet => claim start time
	mapping(address => uint256[]) public releaseAmounts; // wallet => [amount30d, amount90d]

    constructor(address _duelToken) VestingBase(_duelToken) {}

    function allocateDUEL(address wallet, uint256 amount30d, uint256 amount90d) external override {
        require(_msgSender() == duelToken, "Access forbidden");
		require(startTimes[wallet] == 0, "Vesting already in progress");
		startTimes[wallet] = block.timestamp;
		releaseAmounts[wallet] = [amount30d, amount90d];
    }

    function claimDUEL() external override {
		require(startTimes[_msgSender()] >= 0, "Nothing vested");

		uint256 availableAmount = 0;
		if (block.timestamp >= startTimes[_msgSender()] + 30 days && releaseAmounts[_msgSender()][0] > 0) {
			availableAmount += releaseAmounts[_msgSender()][0];
			releaseAmounts[_msgSender()][0] = 0;
		}
		if (block.timestamp >= startTimes[_msgSender()] + 90 days && releaseAmounts[_msgSender()][1] > 0) {
			availableAmount += releaseAmounts[_msgSender()][1];
			releaseAmounts[_msgSender()][1] = 0;
		}

		require(availableAmount > 0, "Nothing to claim");
		IERC20(duelToken).transferFrom(owner(), _msgSender(), availableAmount);
	}
}