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// SPDX-License-Identifier: MIT
pragma solidity ^0.7.6;

import "../interfaces/IDeFiPlazaGov.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/**
 * @title DeFi Plaza governance token (DFPgov)
 * @author Jazzer 9F
 * @notice Implements lean on gas liquidity reward program for DeFi Plaza
 */
contract DFPgov is IDeFiPlazaGov, Ownable, ERC20 {
  using SafeMath for uint256;

  // global staking contract state parameters squeezed in 256 bits
  struct StakingState {
    uint96 totalStake;                      // Total LP tokens currently staked
    uint96 rewardsAccumulatedPerLP;         // Rewards accumulated per staked LP token (16.80 bits)
    uint32 lastUpdate;                      // Timestamp of last update
    uint32 startTime;                       // Timestamp rewards started
  }

  // data per staker, some bits remaining available
  struct StakeData {
    uint96 stake;                           // Amount of LPs staked for this staker
    uint96 rewardsPerLPAtTimeStaked;        // Baseline rewards at the time these LPs were staked
  }

  address public founder;
  address public multisig;
  address public indexToken;
  StakingState public stakingState;
  mapping(address => StakeData) public stakerData;
  uint256 public multisigAllocationClaimed;
  uint256 public founderAllocationClaimed;

  /**
  * Basic setup
  */
  constructor(address founderAddress, uint32 startTime) ERC20("DeFi Plaza governance token", "DFP") {
    // contains the global state of the staking progress
    StakingState memory state;
    state.startTime = startTime;
    stakingState = state;

    // generate the initial 4M founder allocation
    founder = founderAddress;
    _mint(founderAddress, 4e24);
  }

  /**
  * For staking LPs to accumulate governance token rewards.
  * Maintains a single stake per user, but allows to add on top of existing stake.
  */
  function stake(uint96 LPamount)
    external
    override
    returns(bool success)
  {
    // Collect LPs
    require(
      IERC20(indexToken).transferFrom(msg.sender, address(this), LPamount),
      "DFP: Transfer failed"
    );

    // Update global staking state
    StakingState memory state = stakingState;
    if ((block.timestamp >= state.startTime) && (state.lastUpdate < 31536000)) {
      uint256 t1 = block.timestamp - state.startTime;       // calculate time relative to start time
      uint256 t0 = uint256(state.lastUpdate);
      t1 = (t1 > 31536000) ? 31536000 : t1;                 // clamp at 1 year
      uint256 R1 = 170e24 * t1 / 31536000 - 85e24 * t1 * t1 / 994519296000000;
      uint256 R0 = 170e24 * t0 / 31536000 - 85e24 * t0 * t0 / 994519296000000;
      uint256 totalStake = (state.totalStake < 1600e18) ? 1600e18 : state.totalStake;  // Clamp at 1600 for numerical reasons
      state.rewardsAccumulatedPerLP += uint96(((R1.sub(R0)) << 80) / totalStake);
      state.lastUpdate = uint32(t1);
    }
    state.totalStake += LPamount;
    stakingState = state;

    // Update staker data for this user
    StakeData memory staker = stakerData[msg.sender];
    if (staker.stake == 0) {
      staker.stake = LPamount;
      staker.rewardsPerLPAtTimeStaked = state.rewardsAccumulatedPerLP;
    } else {
      uint256 LP1 = staker.stake + LPamount;
      uint256 RLP0_ = (uint256(LPamount) * state.rewardsAccumulatedPerLP + uint256(staker.stake) * staker.rewardsPerLPAtTimeStaked) / LP1;
      staker.stake = uint96(LP1);
      staker.rewardsPerLPAtTimeStaked = uint96(RLP0_);
    }
    stakerData[msg.sender] = staker;

    // Emit staking event
    emit Staked(msg.sender, LPamount);
    return true;
  }

  /**
  * For unstaking LPs and collecting rewards accumulated up to this point.
  * Any unstake action distributes and resets rewards. Simply claiming rewards
  * without unstaking can be done by unstaking zero LPs.
  */
  function unstake(uint96 LPamount)
    external
    override
    returns(uint256 rewards)
  {
    // Collect data for this user
    StakeData memory staker = stakerData[msg.sender];
    require(
      staker.stake >= LPamount,
      "DFP: Insufficient stake"
    );

    // Update the global staking state
    StakingState memory state = stakingState;
    if ((block.timestamp >= state.startTime) && (state.lastUpdate < 31536000)) {
      uint256 t1 = block.timestamp - state.startTime;       // calculate time relative to start time
      uint256 t0 = uint256(state.lastUpdate);
      t1 = (t1 > 31536000) ? 31536000 : t1;                 // clamp at 1 year
      uint256 R1 = 170e24 * t1 / 31536000 - 85e24 * t1 * t1 / 994519296000000;
      uint256 R0 = 170e24 * t0 / 31536000 - 85e24 * t0 * t0 / 994519296000000;
      uint256 totalStake = (state.totalStake < 1600e18) ? 1600e18 : state.totalStake;  // Clamp at 1600 for numerical reasons
      state.rewardsAccumulatedPerLP += uint96(((R1.sub(R0)) << 80) / totalStake);
      state.lastUpdate = uint32(t1);
    }
    state.totalStake -= LPamount;
    stakingState = state;

    // Calculate rewards
    rewards = ((uint256(state.rewardsAccumulatedPerLP) - staker.rewardsPerLPAtTimeStaked) * staker.stake) >> 80;

    // Update user data
    if (LPamount == staker.stake) delete stakerData[msg.sender];
    else {
      staker.stake -= LPamount;
      staker.rewardsPerLPAtTimeStaked = state.rewardsAccumulatedPerLP;
      stakerData[msg.sender] = staker;
    }

    // Distribute reward and emit event
    _mint(msg.sender, rewards);
    IERC20(indexToken).transfer(msg.sender, LPamount);
    emit Unstaked(msg.sender, LPamount, rewards);
  }

  /**
  * Helper function to check unclaimed rewards for any address
  */
  function rewardsQuote(address stakerAddress)
    external
    view
    override
    returns(uint256 rewards)
  {
    // Collect user data
    StakeData memory staker = stakerData[stakerAddress];

    // Calculate distribution since last on chain update
    StakingState memory state = stakingState;
    if ((block.timestamp >= state.startTime) && (state.lastUpdate < 31536000)) {
      uint256 t1 = block.timestamp - state.startTime;       // calculate time relative to start time
      uint256 t0 = uint256(state.lastUpdate);
      t1 = (t1 > 31536000) ? 31536000 : t1;                 // clamp at 1 year
      uint256 R1 = 170e24 * t1 / 31536000 - 85e24 * t1 * t1 / 994519296000000;
      uint256 R0 = 170e24 * t0 / 31536000 - 85e24 * t0 * t0 / 994519296000000;
      uint256 totalStake = (state.totalStake < 1600e18) ? 1600e18 : state.totalStake;  // Clamp at 1600 for numerical reasons
      state.rewardsAccumulatedPerLP += uint96(((R1.sub(R0)) << 80) / totalStake);
    }

    // Calculate unclaimed rewards
    rewards = ((uint256(state.rewardsAccumulatedPerLP) - staker.rewardsPerLPAtTimeStaked) * staker.stake) >> 80;
  }

  /**
  * Configure which token is accepted as stake. Can only be done once.
  */
  function setIndexToken(address indexTokenAddress)
    external
    onlyOwner
    returns(bool success)
  {
    require(indexToken==address(0), "Already configured");
    indexToken = indexTokenAddress;
    _mint(indexTokenAddress, 1e24);
    return true;
  }

  /**
  * Set community multisig address
  */
  function setMultisigAddress(address multisigAddress)
    external
    onlyOwner
    returns(bool success)
  {
    multisig = multisigAddress;
    return true;
  }

  /**
  * Community is allocated 5M governance tokens which are released on the same
  * curve as the tokens that users can stake for. No staking required for this.
  * Rewards accumulated can be claimed into the multisig address anytime.
  */
  function claimMultisigAllocation()
    external
    returns(uint256 amountReleased)
  {
    // Collect global staking state
    StakingState memory state = stakingState;
    require(block.timestamp > state.startTime, "Too early guys");

    // Calculate total community allocation until now
    uint256 t1 = block.timestamp - state.startTime;       // calculate time relative to start time
    t1 = (t1 > 31536000) ? 31536000 : t1;                 // clamp at 1 year
    uint256 R1 = 10e24 * t1 / 31536000 - 5e24 * t1 * t1 / 994519296000000;

    // Calculate how much is to be released now & update released counter
    amountReleased = R1 - multisigAllocationClaimed;
    multisigAllocationClaimed = R1;

    // Grant rewards and emit event for logging
    _mint(multisig, amountReleased);
    emit MultisigClaim(multisig, amountReleased);
  }

  /**
  * Founder is granted 5M governance tokens after 1 year.
  */
  function claimFounderAllocation(uint256 amount, address destination)
    external
    returns(uint256 actualAmount)
  {
    // Basic validity checks
    require(msg.sender == founder, "Not yours man");
    StakingState memory state = stakingState;
    require(block.timestamp - state.startTime >= 31536000, "Too early man");

    // Calculate how many rewards are still available & update claimed counter
    uint256 availableAmount = 5e24 - founderAllocationClaimed;
    actualAmount = (amount > availableAmount) ? availableAmount : amount;
    founderAllocationClaimed += actualAmount;

    // Grant rewards and emit event for logging
    _mint(destination, actualAmount);
    emit FounderClaim(destination, actualAmount);
  }
}

// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.7.6;

interface IDeFiPlazaGov {
  function stake(
    uint96 LPamount
  ) external returns(bool success);

  function unstake(
    uint96 LPamount
  ) external returns(uint256 rewards);

  function rewardsQuote(
    address stakerAddress
  ) external view returns(uint256 rewards);

  event Staked(
    address staker,
    uint256 LPamount
  );

  event Unstaked(
    address staker,
    uint256 LPamount,
    uint256 rewards
  );

  event MultisigClaim(
    address multisig,
    uint256 amount
  );

  event FounderClaim(
    address claimant,
    uint256 amount
  );
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../../utils/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name_, string memory symbol_) public {
        _name = name_;
        _symbol = symbol_;
        _decimals = 18;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return _decimals;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Sets {decimals} to a value other than the default one of 18.
     *
     * WARNING: This function should only be called from the constructor. Most
     * applications that interact with token contracts will not expect
     * {decimals} to ever change, and may work incorrectly if it does.
     */
    function _setupDecimals(uint8 decimals_) internal virtual {
        _decimals = decimals_;
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 GSN 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

{
  "remappings": [],
  "optimizer": {
    "enabled": true,
    "runs": 100000
  },
  "evmVersion": "istanbul",
  "libraries": {},
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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e":"stakerAddress","type":"address"}],"name":"rewardsQuote","outputs":[{"internalType":"uint256","name":"rewards","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"indexTokenAddress","type":"address"}],"name":"setIndexToken","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"multisigAddress","type":"address"}],"name":"setMultisigAddress","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint96","name":"LPamount","type":"uint96"}],"name":"stake","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"stakerData","outputs":[{"internalType":"uint96","name":"stake","type":"uint96"},{"internalType":"uint96","name":"rewardsPerLPAtTimeStaked","type":"uint96"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"stakingState","outputs":[{"internalType":"uint96","name":"totalStake","type":"uint96"},{"internalType":"uint96","name":"rewardsAccumulatedPerLP","type":"uint96"},{"internalType":"uint32","name":"lastUpdate","type":"uint32"},{"internalType":"uint32","name":"startTime","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint96","name":"LPamount","type":"uint96"}],"name":"unstake","outputs":[{"internalType":"uint256","name":"rewards","type":"uint256"}],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000002f7ab204f3675353f37c70f180944a65b9890a9a0000000000000000000000000000000000000000000000000000000060d74f00

-----Decoded View---------------
Arg [0] : founderAddress (address): 0x2f7ab204f3675353F37c70f180944a65b9890a9a
Arg [1] : startTime (uint32): 1624723200

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000002f7ab204f3675353f37c70f180944a65b9890a9a
Arg [1] : 0000000000000000000000000000000000000000000000000000000060d74f00