contract TokenData is Iupgradable {
  using SafeMath for uint;

  address payable public walletAddress;
  uint public lockTokenTimeAfterCoverExp;
  uint public bookTime;
  uint public lockCADays;
  uint public lockMVDays;
  uint public scValidDays;
  uint public joiningFee;
  uint public stakerCommissionPer;
  uint public stakerMaxCommissionPer;
  uint public tokenExponent;
  uint public priceStep;

  struct StakeCommission {
    uint commissionEarned;
    uint commissionRedeemed;
  }

  struct Stake {
    address stakedContractAddress;
    uint stakedContractIndex;
    uint dateAdd;
    uint stakeAmount;
    uint unlockedAmount;
    uint burnedAmount;
    uint unLockableBeforeLastBurn;
  }

  struct Staker {
    address stakerAddress;
    uint stakerIndex;
  }

  struct CoverNote {
    uint amount;
    bool isDeposited;
  }

  /**
   * @dev mapping of uw address to array of sc address to fetch
   * all staked contract address of underwriter, pushing
   * data into this array of Stake returns stakerIndex
   */
  mapping(address => Stake[]) public stakerStakedContracts;

  /**
   * @dev mapping of sc address to array of UW address to fetch
   * all underwritters of the staked smart contract
   * pushing data into this mapped array returns scIndex
   */
  mapping(address => Staker[]) public stakedContractStakers;

  /**
   * @dev mapping of staked contract Address to the array of StakeCommission
   * here index of this array is stakedContractIndex
   */
  mapping(address => mapping(uint => StakeCommission)) public stakedContractStakeCommission;

  mapping(address => uint) public lastCompletedStakeCommission;

  /**
   * @dev mapping of the staked contract address to the current
   * staker index who will receive commission.
   */
  mapping(address => uint) public stakedContractCurrentCommissionIndex;

  /**
   * @dev mapping of the staked contract address to the
   * current staker index to burn token from.
   */
  mapping(address => uint) public stakedContractCurrentBurnIndex;

  /**
   * @dev mapping to return true if Cover Note deposited against coverId
   */
  mapping(uint => CoverNote) public depositedCN;

  mapping(address => uint) internal isBookedTokens;

  event Commission(
    address indexed stakedContractAddress,
    address indexed stakerAddress,
    uint indexed scIndex,
    uint commissionAmount
  );

  constructor(address payable _walletAdd) public {
    walletAddress = _walletAdd;
    bookTime = 12 hours;
    joiningFee = 2000000000000000; // 0.002 Ether
    lockTokenTimeAfterCoverExp = 35 days;
    scValidDays = 250;
    lockCADays = 7 days;
    lockMVDays = 2 days;
    stakerCommissionPer = 20;
    stakerMaxCommissionPer = 50;
    tokenExponent = 4;
    priceStep = 1000;
  }

  /**
   * @dev Change the wallet address which receive Joining Fee
   */
  function changeWalletAddress(address payable _address) external onlyInternal {
    walletAddress = _address;
  }

  /**
   * @dev Gets Uint Parameters of a code
   * @param code whose details we want
   * @return string value of the code
   * @return associated amount (time or perc or value) to the code
   */
  function getUintParameters(bytes8 code) external view returns (bytes8 codeVal, uint val) {
    codeVal = code;
    if (code == "TOKEXP") {

      val = tokenExponent;

    } else if (code == "TOKSTEP") {

      val = priceStep;

    } else if (code == "RALOCKT") {

      val = scValidDays;

    } else if (code == "RACOMM") {

      val = stakerCommissionPer;

    } else if (code == "RAMAXC") {

      val = stakerMaxCommissionPer;

    } else if (code == "CABOOKT") {

      val = bookTime / (1 hours);

    } else if (code == "CALOCKT") {

      val = lockCADays / (1 days);

    } else if (code == "MVLOCKT") {

      val = lockMVDays / (1 days);

    } else if (code == "QUOLOCKT") {

      val = lockTokenTimeAfterCoverExp / (1 days);

    } else if (code == "JOINFEE") {

      val = joiningFee;

    }
  }

  /**
  * @dev Just for interface
  */
  function changeDependentContractAddress() public {//solhint-disable-line
  }

  /**
   * @dev to get the contract staked by a staker
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return the address of staked contract
   */
  function getStakerStakedContractByIndex(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (address stakedContractAddress)
  {
    stakedContractAddress = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractAddress;
  }

  /**
   * @dev to get the staker's staked burned
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return amount burned
   */
  function getStakerStakedBurnedByIndex(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint burnedAmount)
  {
    burnedAmount = stakerStakedContracts[
    _stakerAddress][_stakerIndex].burnedAmount;
  }

  /**
   * @dev to get the staker's staked unlockable before the last burn
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return unlockable staked tokens
   */
  function getStakerStakedUnlockableBeforeLastBurnByIndex(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint unlockable)
  {
    unlockable = stakerStakedContracts[
    _stakerAddress][_stakerIndex].unLockableBeforeLastBurn;
  }

  /**
   * @dev to get the staker's staked contract index
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return is the index of the smart contract address
   */
  function getStakerStakedContractIndex(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint scIndex)
  {
    scIndex = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractIndex;
  }

  /**
   * @dev to get the staker index of the staked contract
   * @param _stakedContractAddress is the address of the staked contract
   * @param _stakedContractIndex is the index of staked contract
   * @return is the index of the staker
   */
  function getStakedContractStakerIndex(
    address _stakedContractAddress,
    uint _stakedContractIndex
  )
  public
  view
  returns (uint sIndex)
  {
    sIndex = stakedContractStakers[
    _stakedContractAddress][_stakedContractIndex].stakerIndex;
  }

  /**
   * @dev to get the staker's initial staked amount on the contract
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return staked amount
   */
  function getStakerInitialStakedAmountOnContract(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint amount)
  {
    amount = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakeAmount;
  }

  /**
   * @dev to get the staker's staked contract length
   * @param _stakerAddress is the address of the staker
   * @return length of staked contract
   */
  function getStakerStakedContractLength(
    address _stakerAddress
  )
  public
  view
  returns (uint length)
  {
    length = stakerStakedContracts[_stakerAddress].length;
  }

  /**
   * @dev to get the staker's unlocked tokens which were staked
   * @param _stakerAddress is the address of the staker
   * @param _stakerIndex is the index of staker
   * @return amount
   */
  function getStakerUnlockedStakedTokens(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint amount)
  {
    amount = stakerStakedContracts[
    _stakerAddress][_stakerIndex].unlockedAmount;
  }

  /**
   * @dev pushes the unlocked staked tokens by a staker.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker to distribute commission.
   * @param _amount amount to be given as commission.
   */
  function pushUnlockedStakedTokens(
    address _stakerAddress,
    uint _stakerIndex,
    uint _amount
  )
  public
  onlyInternal
  {
    stakerStakedContracts[_stakerAddress][
    _stakerIndex].unlockedAmount = stakerStakedContracts[_stakerAddress][
    _stakerIndex].unlockedAmount.add(_amount);
  }

  /**
   * @dev pushes the Burned tokens for a staker.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker.
   * @param _amount amount to be burned.
   */
  function pushBurnedTokens(
    address _stakerAddress,
    uint _stakerIndex,
    uint _amount
  )
  public
  onlyInternal
  {
    stakerStakedContracts[_stakerAddress][
    _stakerIndex].burnedAmount = stakerStakedContracts[_stakerAddress][
    _stakerIndex].burnedAmount.add(_amount);
  }

  /**
   * @dev pushes the unLockable tokens for a staker before last burn.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker.
   * @param _amount amount to be added to unlockable.
   */
  function pushUnlockableBeforeLastBurnTokens(
    address _stakerAddress,
    uint _stakerIndex,
    uint _amount
  )
  public
  onlyInternal
  {
    stakerStakedContracts[_stakerAddress][
    _stakerIndex].unLockableBeforeLastBurn = stakerStakedContracts[_stakerAddress][
    _stakerIndex].unLockableBeforeLastBurn.add(_amount);
  }

  /**
   * @dev sets the unLockable tokens for a staker before last burn.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker.
   * @param _amount amount to be added to unlockable.
   */
  function setUnlockableBeforeLastBurnTokens(
    address _stakerAddress,
    uint _stakerIndex,
    uint _amount
  )
  public
  onlyInternal
  {
    stakerStakedContracts[_stakerAddress][
    _stakerIndex].unLockableBeforeLastBurn = _amount;
  }

  /**
   * @dev pushes the earned commission earned by a staker.
   * @param _stakerAddress address of staker.
   * @param _stakedContractAddress address of smart contract.
   * @param _stakedContractIndex index of the staker to distribute commission.
   * @param _commissionAmount amount to be given as commission.
   */
  function pushEarnedStakeCommissions(
    address _stakerAddress,
    address _stakedContractAddress,
    uint _stakedContractIndex,
    uint _commissionAmount
  )
  public
  onlyInternal
  {
    stakedContractStakeCommission[_stakedContractAddress][_stakedContractIndex].
    commissionEarned = stakedContractStakeCommission[_stakedContractAddress][
    _stakedContractIndex].commissionEarned.add(_commissionAmount);

    emit Commission(
      _stakerAddress,
      _stakedContractAddress,
      _stakedContractIndex,
      _commissionAmount
    );
  }

  /**
   * @dev pushes the redeemed commission redeemed by a staker.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker to distribute commission.
   * @param _amount amount to be given as commission.
   */
  function pushRedeemedStakeCommissions(
    address _stakerAddress,
    uint _stakerIndex,
    uint _amount
  )
  public
  onlyInternal
  {
    uint stakedContractIndex = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractIndex;
    address stakedContractAddress = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractAddress;
    stakedContractStakeCommission[stakedContractAddress][stakedContractIndex].
    commissionRedeemed = stakedContractStakeCommission[
    stakedContractAddress][stakedContractIndex].commissionRedeemed.add(_amount);
  }

  /**
   * @dev Gets stake commission given to an underwriter
   * for particular stakedcontract on given index.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker commission.
   */
  function getStakerEarnedStakeCommission(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint)
  {
    return _getStakerEarnedStakeCommission(_stakerAddress, _stakerIndex);
  }

  /**
   * @dev Gets stake commission redeemed by an underwriter
   * for particular staked contract on given index.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker commission.
   * @return commissionEarned total amount given to staker.
   */
  function getStakerRedeemedStakeCommission(
    address _stakerAddress,
    uint _stakerIndex
  )
  public
  view
  returns (uint)
  {
    return _getStakerRedeemedStakeCommission(_stakerAddress, _stakerIndex);
  }

  /**
   * @dev Gets total stake commission given to an underwriter
   * @param _stakerAddress address of staker.
   * @return totalCommissionEarned total commission earned by staker.
   */
  function getStakerTotalEarnedStakeCommission(
    address _stakerAddress
  )
  public
  view
  returns (uint totalCommissionEarned)
  {
    totalCommissionEarned = 0;
    for (uint i = 0; i < stakerStakedContracts[_stakerAddress].length; i++) {
      totalCommissionEarned = totalCommissionEarned.
      add(_getStakerEarnedStakeCommission(_stakerAddress, i));
    }
  }

  /**
   * @dev Gets total stake commission given to an underwriter
   * @param _stakerAddress address of staker.
   * @return totalCommissionEarned total commission earned by staker.
   */
  function getStakerTotalReedmedStakeCommission(
    address _stakerAddress
  )
  public
  view
  returns (uint totalCommissionRedeemed)
  {
    totalCommissionRedeemed = 0;
    for (uint i = 0; i < stakerStakedContracts[_stakerAddress].length; i++) {
      totalCommissionRedeemed = totalCommissionRedeemed.add(
        _getStakerRedeemedStakeCommission(_stakerAddress, i));
    }
  }

  /**
   * @dev set flag to deposit/ undeposit cover note
   * against a cover Id
   * @param coverId coverId of Cover
   * @param flag true/false for deposit/undeposit
   */
  function setDepositCN(uint coverId, bool flag) public onlyInternal {

    if (flag == true) {
      require(!depositedCN[coverId].isDeposited, "Cover note already deposited");
    }

    depositedCN[coverId].isDeposited = flag;
  }

  /**
   * @dev set locked cover note amount
   * against a cover Id
   * @param coverId coverId of Cover
   * @param amount amount of nxm to be locked
   */
  function setDepositCNAmount(uint coverId, uint amount) public onlyInternal {

    depositedCN[coverId].amount = amount;
  }

  /**
   * @dev to get the staker address on a staked contract
   * @param _stakedContractAddress is the address of the staked contract in concern
   * @param _stakedContractIndex is the index of staked contract's index
   * @return address of staker
   */
  function getStakedContractStakerByIndex(
    address _stakedContractAddress,
    uint _stakedContractIndex
  )
  public
  view
  returns (address stakerAddress)
  {
    stakerAddress = stakedContractStakers[
    _stakedContractAddress][_stakedContractIndex].stakerAddress;
  }

  /**
   * @dev to get the length of stakers on a staked contract
   * @param _stakedContractAddress is the address of the staked contract in concern
   * @return length in concern
   */
  function getStakedContractStakersLength(
    address _stakedContractAddress
  )
  public
  view
  returns (uint length)
  {
    length = stakedContractStakers[_stakedContractAddress].length;
  }

  /**
   * @dev Adds a new stake record.
   * @param _stakerAddress staker address.
   * @param _stakedContractAddress smart contract address.
   * @param _amount amountof NXM to be staked.
   */
  function addStake(
    address _stakerAddress,
    address _stakedContractAddress,
    uint _amount
  )
  public
  onlyInternal
  returns (uint scIndex)
  {
    scIndex = (stakedContractStakers[_stakedContractAddress].push(
      Staker(_stakerAddress, stakerStakedContracts[_stakerAddress].length))).sub(1);
    stakerStakedContracts[_stakerAddress].push(
      Stake(_stakedContractAddress, scIndex, now, _amount, 0, 0, 0));
  }

  /**
   * @dev books the user's tokens for maintaining Assessor Velocity,
   * i.e. once a token is used to cast a vote as a Claims assessor,
   * @param _of user's address.
   */
  function bookCATokens(address _of) public onlyInternal {
    require(!isCATokensBooked(_of), "Tokens already booked");
    isBookedTokens[_of] = now.add(bookTime);
  }

  /**
   * @dev to know if claim assessor's tokens are booked or not
   * @param _of is the claim assessor's address in concern
   * @return boolean representing the status of tokens booked
   */
  function isCATokensBooked(address _of) public view returns (bool res) {
    if (now < isBookedTokens[_of])
      res = true;
  }

  /**
   * @dev Sets the index which will receive commission.
   * @param _stakedContractAddress smart contract address.
   * @param _index current index.
   */
  function setStakedContractCurrentCommissionIndex(
    address _stakedContractAddress,
    uint _index
  )
  public
  onlyInternal
  {
    stakedContractCurrentCommissionIndex[_stakedContractAddress] = _index;
  }

  /**
   * @dev Sets the last complete commission index
   * @param _stakerAddress smart contract address.
   * @param _index current index.
   */
  function setLastCompletedStakeCommissionIndex(
    address _stakerAddress,
    uint _index
  )
  public
  onlyInternal
  {
    lastCompletedStakeCommission[_stakerAddress] = _index;
  }

  /**
   * @dev Sets the index till which commission is distrubuted.
   * @param _stakedContractAddress smart contract address.
   * @param _index current index.
   */
  function setStakedContractCurrentBurnIndex(
    address _stakedContractAddress,
    uint _index
  )
  public
  onlyInternal
  {
    stakedContractCurrentBurnIndex[_stakedContractAddress] = _index;
  }

  /**
   * @dev Updates Uint Parameters of a code
   * @param code whose details we want to update
   * @param val value to set
   */
  function updateUintParameters(bytes8 code, uint val) public {
    require(ms.checkIsAuthToGoverned(msg.sender));
    if (code == "TOKEXP") {

      _setTokenExponent(val);

    } else if (code == "TOKSTEP") {

      _setPriceStep(val);

    } else if (code == "RALOCKT") {

      _changeSCValidDays(val);

    } else if (code == "RACOMM") {

      _setStakerCommissionPer(val);

    } else if (code == "RAMAXC") {

      _setStakerMaxCommissionPer(val);

    } else if (code == "CABOOKT") {

      _changeBookTime(val * 1 hours);

    } else if (code == "CALOCKT") {

      _changelockCADays(val * 1 days);

    } else if (code == "MVLOCKT") {

      _changelockMVDays(val * 1 days);

    } else if (code == "QUOLOCKT") {

      _setLockTokenTimeAfterCoverExp(val * 1 days);

    } else if (code == "JOINFEE") {

      _setJoiningFee(val);

    } else {
      revert("Invalid param code");
    }
  }

  /**
   * @dev Internal function to get stake commission given to an
   * underwriter for particular stakedcontract on given index.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker commission.
   */
  function _getStakerEarnedStakeCommission(
    address _stakerAddress,
    uint _stakerIndex
  )
  internal
  view
  returns (uint amount)
  {
    uint _stakedContractIndex;
    address _stakedContractAddress;
    _stakedContractAddress = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractAddress;
    _stakedContractIndex = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractIndex;
    amount = stakedContractStakeCommission[
    _stakedContractAddress][_stakedContractIndex].commissionEarned;
  }

  /**
   * @dev Internal function to get stake commission redeemed by an
   * underwriter for particular stakedcontract on given index.
   * @param _stakerAddress address of staker.
   * @param _stakerIndex index of the staker commission.
   */
  function _getStakerRedeemedStakeCommission(
    address _stakerAddress,
    uint _stakerIndex
  )
  internal
  view
  returns (uint amount)
  {
    uint _stakedContractIndex;
    address _stakedContractAddress;
    _stakedContractAddress = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractAddress;
    _stakedContractIndex = stakerStakedContracts[
    _stakerAddress][_stakerIndex].stakedContractIndex;
    amount = stakedContractStakeCommission[
    _stakedContractAddress][_stakedContractIndex].commissionRedeemed;
  }

  /**
   * @dev to set the percentage of staker commission
   * @param _val is new percentage value
   */
  function _setStakerCommissionPer(uint _val) internal {
    stakerCommissionPer = _val;
  }

  /**
   * @dev to set the max percentage of staker commission
   * @param _val is new percentage value
   */
  function _setStakerMaxCommissionPer(uint _val) internal {
    stakerMaxCommissionPer = _val;
  }

  /**
   * @dev to set the token exponent value
   * @param _val is new value
   */
  function _setTokenExponent(uint _val) internal {
    tokenExponent = _val;
  }

  /**
   * @dev to set the price step
   * @param _val is new value
   */
  function _setPriceStep(uint _val) internal {
    priceStep = _val;
  }

  /**
   * @dev Changes number of days for which NXM needs to staked in case of underwriting
   */
  function _changeSCValidDays(uint _days) internal {
    scValidDays = _days;
  }

  /**
   * @dev Changes the time period up to which tokens will be locked.
   *      Used to generate the validity period of tokens booked by
   *      a user for participating in claim's assessment/claim's voting.
   */
  function _changeBookTime(uint _time) internal {
    bookTime = _time;
  }

  /**
   * @dev Changes lock CA days - number of days for which tokens
   * are locked while submitting a vote.
   */
  function _changelockCADays(uint _val) internal {
    lockCADays = _val;
  }

  /**
   * @dev Changes lock MV days - number of days for which tokens are locked
   * while submitting a vote.
   */
  function _changelockMVDays(uint _val) internal {
    lockMVDays = _val;
  }

  /**
   * @dev Changes extra lock period for a cover, post its expiry.
   */
  function _setLockTokenTimeAfterCoverExp(uint time) internal {
    lockTokenTimeAfterCoverExp = time;
  }

  /**
   * @dev Set the joining fee for membership
   */
  function _setJoiningFee(uint _amount) internal {
    joiningFee = _amount;
  }
}
function isCATokensBooked(address _of) public view returns (bool res) {
  if (now < isBookedTokens[_of])
    res = true;
}

/**
 * @dev to know if claim assessor's tokens are booked or not
 * @param _of is the claim assessor's address in concern
 * @return boolean representing the status of tokens booked
 */