// File: contracts/tools/TetuRewardRelayer.sol



// SPDX-License-Identifier: ISC
/**
* By using this software, you understand, acknowledge and accept that Tetu
* and/or the underlying software are provided “as is” and “as available”
* basis and without warranties or representations of any kind either expressed
* or implied. Any use of this open source software released under the ISC
* Internet Systems Consortium license is done at your own risk to the fullest
* extent permissible pursuant to applicable law any and all liability as well
* as all warranties, including any fitness for a particular purpose with respect
* to Tetu and/or the underlying software and the use thereof are disclaimed.
*/

pragma solidity 0.8.4;

import "../openzeppelin/SafeERC20.sol";
import "../base/interface/IController.sol";

interface IVesting {
  function start(uint amount) external;

  function claim() external;
}

contract TetuRewardRelayer {
  using SafeERC20 for IERC20;

  uint public constant MAX_TRANSFER = 10_000_000e18;
  uint public constant DELAY = 7 days;
  uint public constant TIME_LOCK = 2 days;

  address public immutable tetu;
  address public immutable controller;

  IVesting public vesting;
  uint public lastTransfer;
  mapping(address => uint) public announces;

  event Announced(address destination, uint ts);

  constructor(address _tetu, address _controller) {
    tetu = _tetu;
    controller = _controller;
  }

  function initVesting(address _vesting) external {
    require(address(vesting) == address(0), 'inited');
    vesting = IVesting(_vesting);
  }

  function announceMove(address destination) external {
    require(IController(controller).governance() == msg.sender, "!gov");

    announces[destination] = block.timestamp;

    emit Announced(destination, block.timestamp);
  }

  function move(address destination, uint amount) external {
    require(IController(controller).governance() == msg.sender, "!gov");

    require(amount <= MAX_TRANSFER, "max");
    require((block.timestamp - lastTransfer) > DELAY, "delay");
    require(announces[destination] != 0 && block.timestamp > (announces[destination] + TIME_LOCK), "time-lock");

    uint balance = IERC20(tetu).balanceOf(address(this));

    require(balance >= amount, '!amount');

    lastTransfer = block.timestamp;
    delete announces[destination];

    IERC20(tetu).safeTransfer(destination, amount);
  }

  function start(uint amount) external {
    require(IController(controller).governance() == msg.sender, "!gov");
    vesting.start(amount);
  }

  function claim() external {
    vesting.claim();
  }


}

// File: contracts/openzeppelin/SafeERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./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;

  function safeTransfer(
    IERC20 token,
    address to,
    uint256 value
  ) internal {
    _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
  }

  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));
  }

  function safeIncreaseAllowance(
    IERC20 token,
    address spender,
    uint256 value
  ) internal {
    uint256 newAllowance = token.allowance(address(this), spender) + value;
    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
  }

  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");
    uint256 newAllowance = oldAllowance - value;
    _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
  }
  }

  /**
   * @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");
    if (returndata.length > 0) {
      // Return data is optional
      require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }
  }
}

// File: contracts/base/interface/IController.sol



// SPDX-License-Identifier: ISC
/**
* By using this software, you understand, acknowledge and accept that Tetu
* and/or the underlying software are provided “as is” and “as available”
* basis and without warranties or representations of any kind either expressed
* or implied. Any use of this open source software released under the ISC
* Internet Systems Consortium license is done at your own risk to the fullest
* extent permissible pursuant to applicable law any and all liability as well
* as all warranties, including any fitness for a particular purpose with respect
* to Tetu and/or the underlying software and the use thereof are disclaimed.
*/

pragma solidity 0.8.4;

interface IController {


  function VERSION() external view returns (string memory);

  function addHardWorker(address _worker) external;

  function addStrategiesToSplitter(
    address _splitter,
    address[] memory _strategies
  ) external;

  function addStrategy(address _strategy) external;

  function addVaultsAndStrategies(
    address[] memory _vaults,
    address[] memory _strategies
  ) external;

  function announcer() external view returns (address);

  function bookkeeper() external view returns (address);

  function changeWhiteListStatus(address[] memory _targets, bool status)
  external;

  function controllerTokenMove(
    address _recipient,
    address _token,
    uint256 _amount
  ) external;

  function dao() external view returns (address);

  function distributor() external view returns (address);

  function doHardWork(address _vault) external;

  function feeRewardForwarder() external view returns (address);

  function fund() external view returns (address);

  function fundDenominator() external view returns (uint256);

  function fundKeeperTokenMove(
    address _fund,
    address _token,
    uint256 _amount
  ) external;

  function fundNumerator() external view returns (uint256);

  function fundToken() external view returns (address);

  function governance() external view returns (address);

  function hardWorkers(address) external view returns (bool);

  function initialize() external;

  function isAllowedUser(address _adr) external view returns (bool);

  function isDao(address _adr) external view returns (bool);

  function isHardWorker(address _adr) external view returns (bool);

  function isPoorRewardConsumer(address _adr) external view returns (bool);

  function isRewardDistributor(address _adr) external view returns (bool);

  function isValidStrategy(address _strategy) external view returns (bool);

  function isValidVault(address _vault) external view returns (bool);

  function mintAndDistribute(uint256 totalAmount, bool mintAllAvailable)
  external;

  function mintHelper() external view returns (address);

  function psDenominator() external view returns (uint256);

  function psNumerator() external view returns (uint256);

  function psVault() external view returns (address);

  function pureRewardConsumers(address) external view returns (bool);

  function rebalance(address _strategy) external;

  function removeHardWorker(address _worker) external;

  function rewardDistribution(address) external view returns (bool);

  function rewardToken() external view returns (address);

  function setAnnouncer(address _newValue) external;

  function setBookkeeper(address newValue) external;

  function setDao(address newValue) external;

  function setDistributor(address _distributor) external;

  function setFeeRewardForwarder(address _feeRewardForwarder) external;

  function setFund(address _newValue) external;

  function setFundNumeratorDenominator(uint256 numerator, uint256 denominator)
  external;

  function setFundToken(address _newValue) external;

  function setGovernance(address newValue) external;

  function setMintHelper(address _newValue) external;

  function setPSNumeratorDenominator(uint256 numerator, uint256 denominator)
  external;

  function setPsVault(address _newValue) external;

  function setPureRewardConsumers(address[] memory _targets, bool _flag)
  external;

  function setRewardDistribution(
    address[] memory _newRewardDistribution,
    bool _flag
  ) external;

  function setRewardToken(address _newValue) external;

  function setVaultController(address _newValue) external;

  function setVaultStrategyBatch(
    address[] memory _vaults,
    address[] memory _strategies
  ) external;

  function strategies(address) external view returns (bool);

  function strategyTokenMove(
    address _strategy,
    address _token,
    uint256 _amount
  ) external;

  function upgradeTetuProxyBatch(
    address[] memory _contracts,
    address[] memory _implementations
  ) external;

  function vaultController() external view returns (address);

  function vaults(address) external view returns (bool);

  function whiteList(address) external view returns (bool);
}

// File: contracts/openzeppelin/IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
  /**
   * @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 `recipient`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
    address recipient,
    uint256 amount
  ) external returns (bool);

  /**
   * @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);
}

// File: contracts/openzeppelin/Address.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
   * ====
   */
  function isContract(address account) internal view returns (bool) {
    // This method relies on extcodesize, which returns 0 for contracts in
    // construction, since the code is only stored at the end of the
    // constructor execution.

    uint256 size;
    assembly {
      size := extcodesize(account)
    }
    return size > 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://diligence.consensys.net/posts/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/v0.5.11/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 functionCall(target, data, "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");
    require(isContract(target), "Address: call to non-contract");

    (bool success, bytes memory returndata) = target.call{value: value}(data);
    return verifyCallResult(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) {
    require(isContract(target), "Address: static call to non-contract");

    (bool success, bytes memory returndata) = target.staticcall(data);
    return verifyCallResult(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) {
    require(isContract(target), "Address: delegate call to non-contract");

    (bool success, bytes memory returndata) = target.delegatecall(data);
    return verifyCallResult(success, returndata, errorMessage);
  }

  /**
   * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
   * revert reason 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 {
      // 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

        assembly {
          let returndata_size := mload(returndata)
          revert(add(32, returndata), returndata_size)
        }
      } else {
        revert(errorMessage);
      }
    }
  }
}