contract RevestA3 is IRevest, RevestAccessControl, RevestReentrancyGuard {
    using SafeERC20 for IERC20;
    using ERC165Checker for address;

    bytes4 public constant ADDRESS_LOCK_INTERFACE_ID = type(IAddressLock).interfaceId;
    bytes4 public constant OUTPUT_RECEIVER_INTERFACE_V2_ID = type(IOutputReceiverV2).interfaceId;
    bytes4 public constant OUTPUT_RECEIVER_INTERFACE_V3_ID = type(IOutputReceiverV3).interfaceId;

    address immutable WETH;

    uint public erc20Fee; // out of 1000
    uint private constant erc20multiplierPrecision = 1000;
    uint public flatWeiFee;
    uint private constant MAX_INT = 2**256 - 1;

    mapping(address => bool) private approved;

    mapping(address => bool) public whitelisted;

    /**
     * @dev Primary constructor to create the Revest controller contract
     */
    constructor(address provider, address weth) RevestAccessControl(provider) {
        WETH = weth;
    }

    // PUBLIC FUNCTIONS

    /**
     * @dev creates a single time-locked NFT with <quantity> number of copies with <amount> of <asset> stored for each copy
     * asset - the address of the underlying ERC20 token for this bond
     * amount - the amount to store per NFT if multiple NFTs of this variety are being created
     * unlockTime - the timestamp at which this will unlock
     * quantity – the number of FNFTs to create with this operation     
     */
    function mintTimeLock(
        uint endTime,
        address[] memory recipients,
        uint[] memory quantities,
        IRevest.FNFTConfig memory fnftConfig
    ) external payable override nonReentrant returns (uint) {
        // Get the next id
        uint fnftId = getFNFTHandler().getNextId();
        // Get or create lock based on time, assign lock to ID
        {
            IRevest.LockParam memory timeLock;
            timeLock.lockType = IRevest.LockType.TimeLock;
            timeLock.timeLockExpiry = endTime;
            getLockManager().createLock(fnftId, timeLock);
        }
        doMint(recipients, quantities, fnftId, fnftConfig, msg.value);

        emit FNFTTimeLockMinted(fnftConfig.asset, _msgSender(), fnftId, endTime, quantities, fnftConfig);

        return fnftId;
    }

    function mintValueLock(
        address primaryAsset,
        address compareTo,
        uint unlockValue,
        bool unlockRisingEdge,
        address oracleDispatch,
        address[] memory recipients,
        uint[] memory quantities,
        IRevest.FNFTConfig memory fnftConfig
    ) external payable override nonReentrant returns (uint) {
        // copy the fnftId
        uint fnftId = getFNFTHandler().getNextId();
        // Initialize the lock structure
        {
            IRevest.LockParam memory valueLock;
            valueLock.lockType = IRevest.LockType.ValueLock;
            valueLock.valueLock.unlockRisingEdge = unlockRisingEdge;
            valueLock.valueLock.unlockValue = unlockValue;
            valueLock.valueLock.asset = primaryAsset;
            valueLock.valueLock.compareTo = compareTo;
            valueLock.valueLock.oracle = oracleDispatch;

            getLockManager().createLock(fnftId, valueLock);
        }

        doMint(recipients, quantities, fnftId, fnftConfig, msg.value);

        emit FNFTValueLockMinted(fnftConfig.asset,  _msgSender(), fnftId, compareTo, oracleDispatch, quantities, fnftConfig);

        return fnftId;
    }

    function mintAddressLock(
        address trigger,
        bytes memory arguments,
        address[] memory recipients,
        uint[] memory quantities,
        IRevest.FNFTConfig memory fnftConfig
    ) external payable override nonReentrant returns (uint) {
        uint fnftId = getFNFTHandler().getNextId();

        {
            IRevest.LockParam memory addressLock;
            addressLock.addressLock = trigger;
            addressLock.lockType = IRevest.LockType.AddressLock;
            // Get or create lock based on address which can trigger unlock, assign lock to ID
            uint lockId = getLockManager().createLock(fnftId, addressLock);

            // The lock ID is already incremented prior to calling a method that could allow for reentry
            if(trigger.supportsInterface(ADDRESS_LOCK_INTERFACE_ID)) {
                IAddressLock(trigger).createLock(fnftId, lockId, arguments);
            }
        }
        // This is a public call to a third-party contract. Must be done after everything else.
        doMint(recipients, quantities, fnftId, fnftConfig, msg.value);

        emit FNFTAddressLockMinted(fnftConfig.asset, _msgSender(), fnftId, trigger, quantities, fnftConfig);

        return fnftId;
    }

    function withdrawFNFT(uint fnftId, uint quantity) external override nonReentrant {
        _withdrawFNFT(fnftId, quantity);
    }

    /// Advanced FNFT withdrawals removed for the time being – no active implementations
    /// Represents slightly increased surface area – may be utilized in Resolve

    function unlockFNFT(uint fnftId) external override nonReentrant  {
        // Works for value locks or time locks
        IRevest.LockType lock = getLockManager().lockTypes(fnftId);
        require(lock == IRevest.LockType.AddressLock || lock == IRevest.LockType.ValueLock, "E008");
        require(getLockManager().unlockFNFT(fnftId, _msgSender()), "E056");

        emit FNFTUnlocked(_msgSender(), fnftId);
    }

    function splitFNFT(
        uint fnftId,
        uint[] memory proportions,
        uint quantity
    ) external override nonReentrant returns (uint[] memory) {
        // Splitting is entirely disabled for the time being
        revert("TMP_BRK");
    }

    /// @return the FNFT ID
    function extendFNFTMaturity(
        uint fnftId,
        uint endTime
    ) external override nonReentrant returns (uint) {
        IFNFTHandler fnftHandler = getFNFTHandler();
        uint supply = fnftHandler.getSupply(fnftId);
        uint balance = fnftHandler.getBalance(_msgSender(), fnftId);

        require(endTime > block.timestamp, 'E002');
        require(fnftId < fnftHandler.getNextId(), "E007");
        require(balance == supply , "E022");
        
        IRevest.FNFTConfig memory config = getTokenVault().getFNFT(fnftId);
        ILockManager manager = getLockManager();
        // If it can't have its maturity extended, revert
        // Will also return false on non-time lock locks
        require(config.maturityExtension &&
            manager.lockTypes(fnftId) == IRevest.LockType.TimeLock, "E029");
        // If desired maturity is below existing date, reject operation
        require(manager.fnftIdToLock(fnftId).timeLockExpiry < endTime, "E030");

        // Update the lock
        IRevest.LockParam memory lock;
        lock.lockType = IRevest.LockType.TimeLock;
        lock.timeLockExpiry = endTime;

        manager.createLock(fnftId, lock);

        // Callback to IOutputReceiverV3
        if(config.pipeToContract != address(0) && config.pipeToContract.supportsInterface(OUTPUT_RECEIVER_INTERFACE_V3_ID)) {
            IOutputReceiverV3(config.pipeToContract).handleTimelockExtensions(fnftId, endTime, msg.sender);
        }

        emit FNFTMaturityExtended(_msgSender(), fnftId, endTime);

        return fnftId;
    }

    /**
     * Amount will be per FNFT. So total ERC20s needed is amount * quantity.
     * We don't charge an ETH fee on depositAdditional, but do take the erc20 percentage.
     * Users can deposit additional into their own
     * Otherwise, if not an owner, they must distribute to all FNFTs equally
     */
    function depositAdditionalToFNFT(
        uint fnftId,
        uint amount,
        uint quantity
    ) external override nonReentrant returns (uint) {
        address vault = addressesProvider.getTokenVault();
        IRevest.FNFTConfig memory fnft = ITokenVault(vault).getFNFT(fnftId);
        require(fnftId < getFNFTHandler().getNextId(), "E007");
        require(fnft.isMulti, "E034");
        require(fnft.depositStopTime < block.timestamp || fnft.depositStopTime == 0, "E035");
        require(quantity > 0, "E070");

        address handler = addressesProvider.getRevestFNFT();
        uint supply = IFNFTHandler(handler).getSupply(fnftId);

        // Future versions may reintroduce series splitting, if it is ever in demand
        require(quantity == supply, 'E083');

        require(fnft.asset == address(0), 'TMP_BRK');
        
        // For now, ERC-20 deposits to TokenVault are disabled
        // This breaks adding additional tokens to an RVST stake
        // Functionality for this will be restored in the near future
               
        // Trigger copying any data on the output receiver here
        // May not be as simple as just copy-pasting data, and it will be left up to devs
        // To determine how to (and if) to implement this method
        // Performed last to give outputRecevier acccess to all new state data
        // We only allow this for things where thre is no real asset stored here, to ensure ERC20 interactions with TokenVault are not expected
        if(fnft.asset == address(0) && fnft.pipeToContract != address(0) && fnft.pipeToContract.supportsInterface(OUTPUT_RECEIVER_INTERFACE_V2_ID)) {
            if(fnft.pipeToContract.supportsInterface(OUTPUT_RECEIVER_INTERFACE_V3_ID)) {
                IOutputReceiverV3(fnft.pipeToContract).handleAdditionalDeposit(fnftId, amount, quantity, msg.sender);
            }
        }
        emit FNFTAddionalDeposited(_msgSender(), 0, quantity, amount);

        return 0;
    }

    //
    // INTERNAL FUNCTIONS
    //

    // Private function for use in withdrawing FNFTs, allow us to make universal use of reentrancy guard 
    function _withdrawFNFT(uint fnftId, uint quantity) private {
        address fnftHandler = addressesProvider.getRevestFNFT();

        // Check if this many FNFTs exist in the first place for the given ID
        require(quantity > 0, "E003");
        // Burn the FNFTs being exchanged
        IFNFTHandler(fnftHandler).burn(_msgSender(), fnftId, quantity);
        require(getLockManager().unlockFNFT(fnftId, _msgSender()), 'E082');
        
        getTokenVault().withdrawToken(fnftId, quantity, _msgSender());
        emit FNFTWithdrawn(_msgSender(), fnftId, quantity);
    }

    function doMint(
        address[] memory recipients,
        uint[] memory quantities,
        uint fnftId,
        IRevest.FNFTConfig memory fnftConfig,
        uint weiValue
    ) internal {
        bool isSingular;
        uint totalQuantity = quantities[0];
        {
            uint rec = recipients.length;
            uint quant = quantities.length;
            require(rec == quant, "recipients and quantities arrays must match");
            // Calculate total quantity
            isSingular = rec == 1;
            if(!isSingular) {
                for(uint i = 1; i < quant; i++) {
                    totalQuantity += quantities[i];
                }
            }
            require(totalQuantity > 0, "E003");
        }

        // Gas optimization
        address vault = addressesProvider.getTokenVault();

        // Take fees
        if(weiValue > 0) {
            // Immediately convert all ETH to WETH
            IWETH(WETH).deposit{value: weiValue}();
        }

        // For multi-chain deployments, will relay through RewardsHandlerSimplified to end up in admin wallet
        // Whitelist system will charge fees on all but approved parties, who may charge them using negotiated
        // values with the Revest Protocol
        if(!whitelisted[_msgSender()]) {
            if(flatWeiFee > 0) {
                require(weiValue >= flatWeiFee, "E005");
                address reward = addressesProvider.getRewardsHandler();
                if(!approved[reward]) {
                    IERC20(WETH).approve(reward, MAX_INT);
                    approved[reward] = true;
                }
                IRewardsHandler(reward).receiveFee(WETH, flatWeiFee);
            }
            
            // If we aren't depositing any value, no point running this
            if(fnftConfig.depositAmount > 0) {
                uint totalERC20Fee = erc20Fee * totalQuantity * fnftConfig.depositAmount / erc20multiplierPrecision;
                if(totalERC20Fee > 0) {
                    IERC20(fnftConfig.asset).safeTransferFrom(_msgSender(), addressesProvider.getAdmin(), totalERC20Fee);
                }
            }

            // If there's any leftover ETH after the flat fee, convert it to WETH
            weiValue -= flatWeiFee;
        }
        
        // Convert ETH to WETH if necessary
        if(weiValue > 0) {
            // If the asset is WETH, we also enable sending ETH to pay for the tx fee. Not required though
            require(fnftConfig.asset == WETH, "E053");
            require(weiValue >= fnftConfig.depositAmount, "E015");
        }
        

        // Create the FNFT and update accounting within TokenVault
        ITokenVault(vault).createFNFT(fnftId, fnftConfig, totalQuantity, _msgSender());

        // Now, we move the funds to token vault from the message sender
        if(fnftConfig.asset != address(0)){
            IERC20(fnftConfig.asset).safeTransferFrom(_msgSender(), vault, totalQuantity * fnftConfig.depositAmount);
        }
        // Mint NFT
        // Gas optimization
        if(!isSingular) {
            getFNFTHandler().mintBatchRec(recipients, quantities, fnftId, totalQuantity, '');
        } else {
            getFNFTHandler().mint(recipients[0], fnftId, quantities[0], '');
        }

    }

    function burn(
        address account,
        uint id,
        uint amount
    ) internal {
        address fnftHandler = addressesProvider.getRevestFNFT();
        require(IFNFTHandler(fnftHandler).getSupply(id) - amount >= 0, "E025");
        IFNFTHandler(fnftHandler).burn(account, id, amount);
    }

    function setFlatWeiFee(uint wethFee) external override onlyOwner {
        flatWeiFee = wethFee;
    }

    function setERC20Fee(uint erc20) external override onlyOwner {
        erc20Fee = erc20;
    }

    function getFlatWeiFee() external view override returns (uint) {
        return flatWeiFee;
    }

    function getERC20Fee() external view override returns (uint) {
        return erc20Fee;
    }

    /**
     * @dev Returns the cached IAddressRegistry connected to this contract
     **/
    function getAddressesProvider() external view returns (IAddressRegistry) {
        return addressesProvider;
    }


    // Used to whitelist a contract for custom fee behavior
    function modifyWhitelist(address contra, bool listed) external onlyOwner {
        whitelisted[contra] = listed;
    }
}
/**
 * This is the entrypoint for the frontend, as well as third-party Revest integrations.
 * Solidity style guide ordering: receive, fallback, external, public, internal, private - within a grouping, view and pure go last - https://docs.soliditylang.org/en/latest/style-guide.html
 */
function modifyWhitelist(address contra, bool listed) external onlyOwner {
    whitelisted[contra] = listed;
}

// Used to whitelist a contract for custom fee behavior