// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { Require } from "../../protocol/lib/Require.sol";
import { ProxyContractHelpers } from "../helpers/ProxyContractHelpers.sol";
import { IWrappedTokenUserVaultFactory } from "../interfaces/IWrappedTokenUserVaultFactory.sol";
import { IWrappedTokenUserVaultProxy } from "../interfaces/IWrappedTokenUserVaultProxy.sol";


/**
 * @title   WrappedTokenUserVaultUpgradeableProxy
 * @author  Dolomite
 *
 * @notice  Abstract "implementation" (for an upgradeable proxy) contract for wrapping tokens via a per-user vault that
 *          can be used with DolomiteMargin
 */
contract WrappedTokenUserVaultUpgradeableProxy is
    IWrappedTokenUserVaultProxy,
    ProxyContractHelpers
{

    // ============ Constants ============

    bytes32 private constant _FILE = "WrappedUserVaultUpgradeableProxy";
    bytes32 private constant _IS_INITIALIZED_SLOT = bytes32(uint256(keccak256("eip1967.proxy.isInitialized")) - 1);
    bytes32 private constant _VAULT_FACTORY_SLOT = bytes32(uint256(keccak256("eip1967.proxy.vaultFactory")) - 1);
    bytes32 private constant _OWNER_SLOT = bytes32(uint256(keccak256("eip1967.proxy.owner")) - 1);

    // ======== Modifiers =========

    modifier requireIsInitialized() {
        Require.that(
            isInitialized(),
            _FILE,
            "Not initialized"
        );
        _;
    }

    // ============ Constructor ============

    constructor() {
        _setAddress(_VAULT_FACTORY_SLOT, msg.sender);
    }

    // ============ Functions ============

    // solhint-disable-next-line payable-fallback
    fallback() external requireIsInitialized {
        _callImplementation(implementation());
    }

    function initialize(
        address _account
    ) external {
        Require.that(
            !isInitialized(),
            _FILE,
            "Already initialized"
        );
        Require.that(
            IWrappedTokenUserVaultFactory(vaultFactory()).getVaultByAccount(_account) == address(this),
            _FILE,
            "Invalid account",
            _account
        );
        _setUint256(_IS_INITIALIZED_SLOT, 1);
        _setAddress(_OWNER_SLOT, _account);
    }

    function implementation() public override view returns (address) {
        return IWrappedTokenUserVaultFactory(vaultFactory()).userVaultImplementation();
    }

    function isInitialized() public override view returns (bool) {
        return _getUint256(_IS_INITIALIZED_SLOT) == 1;
    }

    function vaultFactory() public override view returns (address) {
        return _getAddress(_VAULT_FACTORY_SLOT);
    }

    function owner() public override view returns (address) {
        return _getAddress(_OWNER_SLOT);
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;


/**
 * @title   ProxyContractHelpers
 * @author  Dolomite
 *
 * @notice  Helper functions for upgradeable proxy contracts to use
 */
abstract contract ProxyContractHelpers {

    // ================ Internal Functions ==================

    function _callImplementation(address _implementation) internal {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), _implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    function _setAddress(bytes32 slot, address _value) internal {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, _value)
        }
    }

    function _setUint256(bytes32 slot, uint256 _value) internal {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, _value)
        }
    }

    function _getAddress(bytes32 slot) internal view returns (address value) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            value := sload(slot)
        }
    }

    function _getUint256(bytes32 slot) internal view returns (uint256 value) {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            value := sload(slot)
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;


/**
 * @title   IAuthorizationBase
 * @author  Dolomite
 *
 * @notice  Interface for allowing only trusted callers to invoke functions that use the `requireIsCallerAuthorized`
 *          modifier.
 */
interface IAuthorizationBase {

    function setIsCallerAuthorized(address _caller, bool _isAuthorized) external;

    function isCallerAuthorized(address _caller) external view returns (bool);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IAuthorizationBase } from "./IAuthorizationBase.sol";
import { AccountBalanceLib } from "../lib/AccountBalanceLib.sol";


/**
 * @title   IBorrowPositionProxyV2
 * @author  Dolomite
 *
 * @notice  Interface for allowing only trusted callers to invoke borrow related functions for transferring funds
 *          between account owners.
 */
interface IBorrowPositionProxyV2 is IAuthorizationBase {

    // ========================= Functions =========================

    /**
     *
     * @param  _fromAccountOwner    The account from which the user will be sourcing the deposit
     * @param  _fromAccountNumber   The index from which `_toAccountOwner` will be sourcing the deposit
     * @param  _toAccountOwner      The account into which `_fromAccountOwner` will be depositing
     * @param  _toAccountNumber     The index into which `_fromAccountOwner` will be depositing
     * @param  _collateralMarketId  The ID of the market being deposited
     * @param  _amountWei           The amount, in Wei, to deposit
     * @param  _balanceCheckFlag    Flag used to check if `_fromAccountNumber`, `_toAccountNumber`, or both accounts can
     *                              go negative after the transfer settles. Setting the flag to
     *                              `AccountBalanceLib.BalanceCheckFlag.None=3` results in neither account being
     *                              checked.
     */
    function openBorrowPositionWithDifferentAccounts(
        address _fromAccountOwner,
        uint256 _fromAccountNumber,
        address _toAccountOwner,
        uint256 _toAccountNumber,
        uint256 _collateralMarketId,
        uint256 _amountWei,
        AccountBalanceLib.BalanceCheckFlag _balanceCheckFlag
    ) external;

    /**
     * @notice  This method can only be called once the user's debt has been reduced to zero. Sends all
     *          `_collateralMarketIds` from `_borrowAccountNumber` to `_toAccountNumber`.
     *
     * @param  _borrowAccountOwner  The account from which collateral will be withdrawn
     * @param  _borrowAccountNumber The index from which `msg.sender` collateral will be withdrawn
     * @param  _toAccountOwner      The account into which `_borrowAccountOwner` will be depositing leftover collateral
     * @param  _toAccountNumber     The index into which `_borrowAccountOwner` will be depositing leftover collateral
     * @param  _collateralMarketIds The IDs of the markets being withdrawn, to close the position
     */
    function closeBorrowPositionWithDifferentAccounts(
        address _borrowAccountOwner,
        uint256 _borrowAccountNumber,
        address _toAccountOwner,
        uint256 _toAccountNumber,
        uint256[] calldata _collateralMarketIds
    ) external;

    /**
     *
     * @param  _fromAccountOwner    The account from which assets will be withdrawn
     * @param  _fromAccountNumber   The index from which `msg.sender` will be withdrawing assets
     * @param  _toAccountOwner      The account to which assets will be deposited
     * @param  _toAccountNumber     The index into which `msg.sender` will be depositing assets
     * @param  _marketId            The ID of the market being transferred
     * @param  _amountWei           The amount, in Wei, to transfer
     * @param  _balanceCheckFlag    Flag used to check if `_fromAccountNumber`, `_toAccountNumber`, or both accounts can
     *                              go negative after the transfer settles. Setting the flag to
     *                              `AccountBalanceLib.BalanceCheckFlag.None=3` results in neither account being
     *                              checked.
     */
    function transferBetweenAccountsWithDifferentAccounts(
        address _fromAccountOwner,
        uint256 _fromAccountNumber,
        address _toAccountOwner,
        uint256 _toAccountNumber,
        uint256 _marketId,
        uint256 _amountWei,
        AccountBalanceLib.BalanceCheckFlag _balanceCheckFlag
    ) external;

    /**
     *
     * @param  _fromAccountOwner    The account from which assets will be withdrawn for repayment
     * @param  _fromAccountNumber   The index from which `msg.sender` will be depositing assets
     * @param  _borrowAccountOwner  The account of the borrow position that will receive the deposited assets
     * @param  _borrowAccountNumber The index of the borrow position for that will receive the deposited assets
     * @param  _marketId            The ID of the market being transferred
     * @param  _balanceCheckFlag    Flag used to check if `_fromAccountNumber`, `_borrowAccountNumber`, or both accounts
     *                              can go negative after the transfer settles. Setting the flag to
     *                              `AccountBalanceLib.BalanceCheckFlag.None=3` results in neither account being
     *                              checked.
     */
    function repayAllForBorrowPositionWithDifferentAccounts(
        address _fromAccountOwner,
        uint256 _fromAccountNumber,
        address _borrowAccountOwner,
        uint256 _borrowAccountNumber,
        uint256 _marketId,
        AccountBalanceLib.BalanceCheckFlag _balanceCheckFlag
    ) external;
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteMargin } from "../../protocol/interfaces/IDolomiteMargin.sol";


/**
 * @title   IOnlyDolomiteMargin
 * @author  Dolomite
 *
 * @notice  This interface is for contracts that need to add modifiers for only DolomiteMargin / Owner caller.
 */
interface IOnlyDolomiteMargin {

    function DOLOMITE_MARGIN() external view returns (IDolomiteMargin);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IBorrowPositionProxyV2 } from "./IBorrowPositionProxyV2.sol";
import { IOnlyDolomiteMargin } from "./IOnlyDolomiteMargin.sol";


/**
 * @title   IWrappedTokenUserVaultFactory
 * @author  Dolomite
 *
 * @notice A wrapper contract around a certain token to offer isolation mode features for DolomiteMargin.
 */
interface IWrappedTokenUserVaultFactory is IOnlyDolomiteMargin {

    // =================================================
    // ==================== Structs ====================
    // =================================================

    struct QueuedTransfer {
        address from;
        address to;
        uint256 amount;
        address vault;
        bool isExecuted;
    }

    // ================================================
    // ==================== Events ====================
    // ================================================

    event UserVaultImplementationSet(
        address indexed previousUserVaultImplementation,
        address indexed newUserVaultImplementation
    );

    event TokenConverterSet(address indexed tokenConverter, bool isTrusted);

    event VaultCreated(address indexed account, address vault);

    event Initialized();

    event TransferQueued(
        uint256 indexed transferCursor,
        address from,
        address to,
        uint256 amountWei,
        address vault
    );

    // ======================================================
    // ================== Admin Functions ===================
    // ======================================================

    /**
     * @notice  Initializes this contract's variables that are dependent on this token being added to DolomiteMargin.
     */
    function ownerInitialize(address[] calldata _tokenConverters) external;

    /**
     *
     * @param  _userVaultImplementation  The address of the new vault implementation contract
     */
    function ownerSetUserVaultImplementation(address _userVaultImplementation) external;

    /**
     * @notice  A token converter is used to convert this underlying token into a Dolomite-compatible one for deposit
     *          or withdrawal
     *
     * @param  _tokenConverter   The address of the token converter contract to set whether or not it's trusted for
     *                          executing transfers to/from vaults
     * @param  _isTrusted        True if the token converter is trusted, false otherwise
     */
    function ownerSetIsTokenConverterTrusted(address _tokenConverter, bool _isTrusted) external;

    // ======================================================
    // ================== User Functions ===================
    // ======================================================

    /**
     * @notice  Creates the vault for `_account`
     *
     * @param  _account  The account owner to create the vault for
     */
    function createVault(address _account) external returns (address);

    /**
     * @notice  Creates the vault for `msg.sender`
     *
     * @param  _toAccountNumber  The account number of the account to which the tokens will be deposited
     * @param  _amountWei        The amount of tokens to deposit
     */
    function createVaultAndDepositIntoDolomiteMargin(
        uint256 _toAccountNumber,
        uint256 _amountWei
    ) external returns (address);

    /**
     * @notice  Deposits a token into the vault owner's account at `_toAccountNumber`. This function can only be called
     *          by a user's vault contract. Reverts if `_marketId` is set to the market ID of this vault.
     *
     * @param  _toAccountNumber  The account number of the account to which the tokens will be deposited
     * @param  _marketId         The market ID of the token to deposit
     * @param  _amountWei        The amount of tokens to deposit
     */
    function depositOtherTokenIntoDolomiteMarginForVaultOwner(
        uint256 _toAccountNumber,
        uint256 _marketId,
        uint256 _amountWei
    )
    external;

    /**
     * @notice  Enqueues a transfer into Dolomite Margin from the vault. Assumes msg.sender is a trusted token
     *          converter, else reverts. Reverts if `_vault` is not a valid vault contract.
     *
     * @param  _vault        The address of the vault that the token converter is interacting with
     * @param  _amountWei    The amount of tokens to transfer into Dolomite Margin
     */
    function enqueueTransferIntoDolomiteMargin(
        address _vault,
        uint256 _amountWei
    )
    external;

    /**
     * @notice  Enqueues a transfer from Dolomite Margin to the token converter. Assumes msg.sender is a trusted token
     *          converter, else reverts. Reverts if `_vault` is not a valid vault contract.
     *
     * @param  _vault        The address of the vault that the token converter is interacting with
     * @param  _amountWei    The amount of tokens to transfer from Dolomite Margin to the token converter
     */
    function enqueueTransferFromDolomiteMargin(
        address _vault,
        uint256 _amountWei
    )
    external;

    /**
     * @notice  This function should only be called by a user's vault contract
     *
     * @param  _toAccountNumber  The account number of the account to which the tokens will be deposited
     * @param  _amountWei        The amount of tokens to deposit
     */
    function depositIntoDolomiteMargin(
        uint256 _toAccountNumber,
        uint256 _amountWei
    )
    external;

    /**
     * @notice  This function should only be called by a user's vault contract
     *
     * @param  _fromAccountNumber    The account number of the account from which the tokens will be withdrawn
     * @param  _amountWei            The amount of tokens to withdraw
     */
    function withdrawFromDolomiteMargin(
        uint256 _fromAccountNumber,
        uint256 _amountWei
    )
    external;

    // ============================================
    // ================= Constants ================
    // ============================================

    /**
     * @return  The market ID of the single element array returned by #allowableCollateralMarketIds() if no other
     *          collateral assets are allowed
     */
    function NONE() external view returns (uint256);

    /**
     * @return The address of the token that this vault wraps around
     */
    function UNDERLYING_TOKEN() external view returns (address);

    /**
     * @return  The address of the BorrowPositionProxyV2 contract
     */
    function BORROW_POSITION_PROXY() external view returns (IBorrowPositionProxyV2);

    // =================================================
    // ================= View Functions ================
    // =================================================

    /**
     * @return  The market ID of this token contract according to DolomiteMargin. This value is initializes in the
     *          #initialize function
     */
    function marketId() external view returns (uint256);

    /**
     * @return  This function should always return `true`. It's used by The Graph to index this contract as a Wrapper.
     */
    function isIsolationAsset() external view returns (bool);

    /**
     *
     * @param  _transferCursor   The cursor used to key into the mapping of queued transfers
     * @return The transfer enqueued in the mapping at the cursor's position
     */
    function getQueuedTransferByCursor(uint256 _transferCursor) external view returns (QueuedTransfer memory);

    /**
     * @return  The market IDs of the assets that can be borrowed in a position with this wrapped asset. An empty array
     *          indicates that any non-isolation mode asset can be borrowed against it.
     */
    function allowableDebtMarketIds() external view returns (uint256[] memory);

    /**
     * @return  The market IDs of the assets that can be used as collateral in a position with this wrapped asset. An
     *          empty array indicates that any non-isolation mode asset can be borrowed against it. To indicate that no
     *          assets can be used as collateral, return an array with a single element containing #NONE.
     */
    function allowableCollateralMarketIds() external view returns (uint256[] memory);

    /**
     * @return  The address of the current vault implementation contract
     */
    function userVaultImplementation() external view returns (address);

    /**
     *
     * @param  _account  The account owner to get the vault for
     * @return  _vault   The address of the vault created for `_account`. Returns address(0) if no vault has been
     *                   created yet for this account.
     */
    function getVaultByAccount(address _account) external view returns (address _vault);

    /**
     * @notice  Same as `getVaultByAccount`, but always returns the user's non-zero vault address.
     */
    function calculateVaultByAccount(address _account) external view returns (address _vault);

    /**
     *
     * @param  _vault    The vault that's used by an account for depositing/withdrawing
     * @return  _account The address of the account that owns the `_vault`
     */
    function getAccountByVault(address _vault) external view returns (address _account);

    /**
     * @notice  A token converter is used to convert this underlying token into a Dolomite-compatible one for deposit
     *          or withdrawal
     * @return  True if the token converter is currently in-use by this contract.
     */
    function isTokenConverterTrusted(address _tokenConverter) external view returns (bool);

    function getProxyVaultInitCodeHash() external pure returns (bytes32);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;


/**
 * @title   IWrappedTokenUserVaultProxy
 * @author  Dolomite
 *
 * @notice  The interface for the upgradeable proxy contract that holds each user's tokens that are wrapped by the
 *          WrappedTokenUserVaultFactory.
 */
interface IWrappedTokenUserVaultProxy {

    /**
     *
     * @param  _account The owner of this vault contract
     */
    function initialize(address _account) external;

    function isInitialized() external view returns (bool);

    function implementation() external view returns (address);

    function vaultFactory() external view returns (address);

    function owner() external view returns (address);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteMargin } from "../../protocol/interfaces/IDolomiteMargin.sol";
import { IDolomiteStructs } from "../../protocol/interfaces/IDolomiteStructs.sol";

import { Require } from "../../protocol/lib/Require.sol";
import { TypesLib } from "../../protocol/lib/TypesLib.sol";


/**
 * @title   AccountBalanceLib
 * @author  Dolomite
 *
 * @notice  Library contract that checks a user's balance after transaction to be non-negative
 */
library AccountBalanceLib {
    using TypesLib for IDolomiteStructs.Par;

    // ============ Types ============

    /// Checks that either BOTH, FROM, or TO accounts all have non-negative balances
    enum BalanceCheckFlag {
        Both,
        From,
        To,
        None
    }

    // ============ Constants ============

    bytes32 private constant _FILE = "AccountBalanceLib";

    // ============ Functions ============

    /**
     *  Checks that the account's balance is non-negative. Reverts if the check fails
     */
    function verifyBalanceIsNonNegative(
        IDolomiteMargin dolomiteMargin,
        address _accountOwner,
        uint256 _accountNumber,
        uint256 _marketId
    ) internal view {
        IDolomiteStructs.AccountInfo memory account = IDolomiteStructs.AccountInfo({
            owner: _accountOwner,
            number: _accountNumber
        });
        IDolomiteStructs.Par memory par = dolomiteMargin.getAccountPar(account, _marketId);
        Require.that(
            par.isPositive() || par.isZero(),
            _FILE,
            "account cannot go negative",
            _accountOwner,
            _accountNumber,
            _marketId
        );
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;


/**
 * @title   IDolomiteInterestSetter
 * @author  Dolomite
 *
 * @notice  This interface defines the functions that for an interest setter that can be used to determine the interest
 *          rate of a market.
 */
interface IDolomiteInterestSetter {

    // ============ Structs ============

    struct InterestRate {
        uint256 value;
    }

    // ============ Functions ============

    /**
     * Get the interest rate of a token given some borrowed and supplied amounts
     *
     * @param  token        The address of the ERC20 token for the market
     * @param  borrowWei    The total borrowed token amount for the market
     * @param  supplyWei    The total supplied token amount for the market
     * @return              The interest rate per second
     */
    function getInterestRate(
        address token,
        uint256 borrowWei,
        uint256 supplyWei
    )
    external
    view
    returns (InterestRate memory);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteInterestSetter } from "./IDolomiteInterestSetter.sol";
import { IDolomiteMarginAdmin } from "./IDolomiteMarginAdmin.sol";
import { IDolomitePriceOracle } from "./IDolomitePriceOracle.sol";


/**
 * @title   IDolomiteMargin
 * @author  Dolomite
 *
 * @notice  The interface for interacting with the main entry-point to DolomiteMargin
 */
interface IDolomiteMargin is IDolomiteMarginAdmin {

    // ==================================================
    // ================= Write Functions ================
    // ==================================================

    /**
     * The main entry-point to DolomiteMargin that allows users and contracts to manage accounts.
     * Take one or more actions on one or more accounts. The msg.sender must be the owner or
     * operator of all accounts except for those being liquidated, vaporized, or traded with.
     * One call to operate() is considered a singular "operation". Account collateralization is
     * ensured only after the completion of the entire operation.
     *
     * @param  accounts  A list of all accounts that will be used in this operation. Cannot contain
     *                   duplicates. In each action, the relevant account will be referred-to by its
     *                   index in the list.
     * @param  actions   An ordered list of all actions that will be taken in this operation. The
     *                   actions will be processed in order.
     */
    function operate(
        AccountInfo[] calldata accounts,
        ActionArgs[] calldata actions
    ) external;

    /**
     * Approves/disapproves any number of operators. An operator is an external address that has the
     * same permissions to manipulate an account as the owner of the account. Operators are simply
     * addresses and therefore may either be externally-owned Ethereum accounts OR smart contracts.
     *
     * Operators are also able to act as AutoTrader contracts on behalf of the account owner if the
     * operator is a smart contract and implements the IAutoTrader interface.
     *
     * @param  args  A list of OperatorArgs which have an address and a boolean. The boolean value
     *               denotes whether to approve (true) or revoke approval (false) for that address.
     */
    function setOperators(
        OperatorArg[] calldata args
    ) external;

    // ==================================================
    // ================= Read Functions ================
    // ==================================================

    // ============ Getters for Markets ============

    /**
     * Get the ERC20 token address for a market.
     *
     * @param  token    The token to query
     * @return          The token's marketId if the token is valid
     */
    function getMarketIdByTokenAddress(
        address token
    ) external view returns (uint256);

    /**
     * Get the ERC20 token address for a market.
     *
     * @param  marketId  The market to query
     * @return           The token address
     */
    function getMarketTokenAddress(
        uint256 marketId
    ) external view returns (address);

    /**
     * Return true if a particular market is in closing mode. Additional borrows cannot be taken
     * from a market that is closing.
     *
     * @param  marketId  The market to query
     * @return           True if the market is closing
     */
    function getMarketIsClosing(
        uint256 marketId
    )
    external
    view
    returns (bool);

    /**
     * Get the price of the token for a market.
     *
     * @param  marketId  The market to query
     * @return           The price of each atomic unit of the token
     */
    function getMarketPrice(
        uint256 marketId
    ) external view returns (MonetaryPrice memory);

    /**
     * Get the total number of markets.
     *
     * @return  The number of markets
     */
    function getNumMarkets() external view returns (uint256);

    /**
     * Get the total principal amounts (borrowed and supplied) for a market.
     *
     * @param  marketId  The market to query
     * @return           The total principal amounts
     */
    function getMarketTotalPar(
        uint256 marketId
    ) external view returns (TotalPar memory);

    /**
     * Get the most recently cached interest index for a market.
     *
     * @param  marketId  The market to query
     * @return           The most recent index
     */
    function getMarketCachedIndex(
        uint256 marketId
    ) external view returns (InterestIndex memory);

    /**
     * Get the interest index for a market if it were to be updated right now.
     *
     * @param  marketId  The market to query
     * @return           The estimated current index
     */
    function getMarketCurrentIndex(
        uint256 marketId
    ) external view returns (InterestIndex memory);

    /**
     * Get the price oracle address for a market.
     *
     * @param  marketId  The market to query
     * @return           The price oracle address
     */
    function getMarketPriceOracle(
        uint256 marketId
    ) external view returns (IDolomitePriceOracle);

    /**
     * Get the interest-setter address for a market.
     *
     * @param  marketId  The market to query
     * @return           The interest-setter address
     */
    function getMarketInterestSetter(
        uint256 marketId
    ) external view returns (IDolomiteInterestSetter);

    /**
     * Get the margin premium for a market. A margin premium makes it so that any positions that
     * include the market require a higher collateralization to avoid being liquidated.
     *
     * @param  marketId  The market to query
     * @return           The market's margin premium
     */
    function getMarketMarginPremium(
        uint256 marketId
    ) external view returns (Decimal memory);

    /**
     * Get the spread premium for a market. A spread premium makes it so that any liquidations
     * that include the market have a higher spread than the global default.
     *
     * @param  marketId  The market to query
     * @return           The market's spread premium
     */
    function getMarketSpreadPremium(
        uint256 marketId
    ) external view returns (Decimal memory);

    /**
     * Return true if this market can be removed and its ID can be recycled and reused
     *
     * @param  marketId  The market to query
     * @return           True if the market is recyclable
     */
    function getMarketIsRecyclable(
        uint256 marketId
    ) external view returns (bool);

    /**
     * Gets the recyclable markets, up to `n` length. If `n` is greater than the length of the list, 0's are returned
     * for the empty slots.
     *
     * @param  n    The number of markets to get, bounded by the linked list being smaller than `n`
     * @return      The list of recyclable markets, in the same order held by the linked list
     */
    function getRecyclableMarkets(
        uint256 n
    ) external view returns (uint[] memory);

    /**
     * Get the current borrower interest rate for a market.
     *
     * @param  marketId  The market to query
     * @return           The current interest rate
     */
    function getMarketInterestRate(
        uint256 marketId
    ) external view returns (IDolomiteInterestSetter.InterestRate memory);

    /**
     * Get basic information about a particular market.
     *
     * @param  marketId  The market to query
     * @return           A Market struct with the current state of the market
     */
    function getMarket(
        uint256 marketId
    ) external view returns (Market memory);

    /**
     * Get comprehensive information about a particular market.
     *
     * @param  marketId  The market to query
     * @return           A tuple containing the values:
     *                    - A Market struct with the current state of the market
     *                    - The current estimated interest index
     *                    - The current token price
     *                    - The current market interest rate
     */
    function getMarketWithInfo(
        uint256 marketId
    )
    external
    view
    returns (
        Market memory,
        InterestIndex memory,
        MonetaryPrice memory,
        IDolomiteInterestSetter.InterestRate memory
    );

    /**
     * Get the number of excess tokens for a market. The number of excess tokens is calculated by taking the current
     * number of tokens held in DolomiteMargin, adding the number of tokens owed to DolomiteMargin by borrowers, and
     * subtracting the number of tokens owed to suppliers by DolomiteMargin.
     *
     * @param  marketId  The market to query
     * @return           The number of excess tokens
     */
    function getNumExcessTokens(
        uint256 marketId
    ) external view returns (Wei memory);

    // ============ Getters for Accounts ============

    /**
     * Get the principal value for a particular account and market.
     *
     * @param  account   The account to query
     * @param  marketId  The market to query
     * @return           The principal value
     */
    function getAccountPar(
        AccountInfo calldata account,
        uint256 marketId
    ) external view returns (Par memory);

    /**
     * Get the principal value for a particular account and market, with no check the market is valid. Meaning, markets
     * that don't exist return 0.
     *
     * @param  account   The account to query
     * @param  marketId  The market to query
     * @return           The principal value
     */
    function getAccountParNoMarketCheck(
        AccountInfo calldata account,
        uint256 marketId
    ) external view returns (Par memory);

    /**
     * Get the token balance for a particular account and market.
     *
     * @param  account   The account to query
     * @param  marketId  The market to query
     * @return           The token amount
     */
    function getAccountWei(
        AccountInfo calldata account,
        uint256 marketId
    ) external view returns (Wei memory);

    /**
     * Get the status of an account (Normal, Liquidating, or Vaporizing).
     *
     * @param  account  The account to query
     * @return          The account's status
     */
    function getAccountStatus(
        AccountInfo calldata account
    ) external view returns (AccountStatus);

    /**
     * Get a list of markets that have a non-zero balance for an account
     *
     * @param  account  The account to query
     * @return          The non-sorted marketIds with non-zero balance for the account.
     */
    function getAccountMarketsWithBalances(
        AccountInfo calldata account
    ) external view returns (uint256[] memory);

    /**
     * Get the number of markets that have a non-zero balance for an account
     *
     * @param  account  The account to query
     * @return          The non-sorted marketIds with non-zero balance for the account.
     */
    function getAccountNumberOfMarketsWithBalances(
        AccountInfo calldata account
    ) external view returns (uint256);

    /**
     * Get the marketId for an account's market with a non-zero balance at the given index
     *
     * @param  account  The account to query
     * @return          The non-sorted marketIds with non-zero balance for the account.
     */
    function getAccountMarketWithBalanceAtIndex(
        AccountInfo calldata account,
        uint256 index
    ) external view returns (uint256);

    /**
     * Get the number of markets with which an account has a negative balance.
     *
     * @param  account  The account to query
     * @return          The non-sorted marketIds with non-zero balance for the account.
     */
    function getAccountNumberOfMarketsWithDebt(
        AccountInfo calldata account
    ) external view returns (uint256);

    /**
     * Get the total supplied and total borrowed value of an account.
     *
     * @param  account  The account to query
     * @return          The following values:
     *                   - The supplied value of the account
     *                   - The borrowed value of the account
     */
    function getAccountValues(
        AccountInfo calldata account
    ) external view returns (MonetaryValue memory, MonetaryValue memory);

    /**
     * Get the total supplied and total borrowed values of an account adjusted by the marginPremium
     * of each market. Supplied values are divided by (1 + marginPremium) for each market and
     * borrowed values are multiplied by (1 + marginPremium) for each market. Comparing these
     * adjusted values gives the margin-ratio of the account which will be compared to the global
     * margin-ratio when determining if the account can be liquidated.
     *
     * @param  account  The account to query
     * @return          The following values:
     *                   - The supplied value of the account (adjusted for marginPremium)
     *                   - The borrowed value of the account (adjusted for marginPremium)
     */
    function getAdjustedAccountValues(
        AccountInfo calldata account
    ) external view returns (MonetaryValue memory, MonetaryValue memory);

    /**
     * Get an account's summary for each market.
     *
     * @param  account  The account to query
     * @return          The following values:
     *                   - The market IDs for each market
     *                   - The ERC20 token address for each market
     *                   - The account's principal value for each market
     *                   - The account's (supplied or borrowed) number of tokens for each market
     */
    function getAccountBalances(
        AccountInfo calldata account
    ) external view returns (uint[] memory, address[] memory, Par[] memory, Wei[] memory);

    // ============ Getters for Account Permissions ============

    /**
     * Return true if a particular address is approved as an operator for an owner's accounts.
     * Approved operators can act on the accounts of the owner as if it were the operator's own.
     *
     * @param  owner     The owner of the accounts
     * @param  operator  The possible operator
     * @return           True if operator is approved for owner's accounts
     */
    function getIsLocalOperator(
        address owner,
        address operator
    ) external view returns (bool);

    /**
     * Return true if a particular address is approved as a global operator. Such an address can
     * act on any account as if it were the operator's own.
     *
     * @param  operator  The address to query
     * @return           True if operator is a global operator
     */
    function getIsGlobalOperator(
        address operator
    ) external view returns (bool);

    /**
     * Checks if the autoTrader can only be called invoked by a global operator
     *
     * @param  autoTrader    The trader that should be checked for special call privileges.
     */
    function getIsAutoTraderSpecial(address autoTrader) external view returns (bool);

    /**
     * @return The address that owns the DolomiteMargin protocol
     */
    function owner() external view returns (address);

    // ============ Getters for Risk Params ============

    /**
     * Get the global minimum margin-ratio that every position must maintain to prevent being
     * liquidated.
     *
     * @return  The global margin-ratio
     */
    function getMarginRatio() external view returns (Decimal memory);

    /**
     * Get the global liquidation spread. This is the spread between oracle prices that incentivizes
     * the liquidation of risky positions.
     *
     * @return  The global liquidation spread
     */
    function getLiquidationSpread() external view returns (Decimal memory);

    /**
     * Get the adjusted liquidation spread for some market pair. This is equal to the global
     * liquidation spread multiplied by (1 + spreadPremium) for each of the two markets.
     *
     * @param  heldMarketId  The market for which the account has collateral
     * @param  owedMarketId  The market for which the account has borrowed tokens
     * @return               The adjusted liquidation spread
     */
    function getLiquidationSpreadForPair(
        uint256 heldMarketId,
        uint256 owedMarketId
    ) external view returns (Decimal memory);

    /**
     * Get the global earnings-rate variable that determines what percentage of the interest paid
     * by borrowers gets passed-on to suppliers.
     *
     * @return  The global earnings rate
     */
    function getEarningsRate() external view returns (Decimal memory);

    /**
     * Get the global minimum-borrow value which is the minimum value of any new borrow on DolomiteMargin.
     *
     * @return  The global minimum borrow value
     */
    function getMinBorrowedValue() external view returns (MonetaryValue memory);

    /**
     * Get all risk parameters in a single struct.
     *
     * @return  All global risk parameters
     */
    function getRiskParams() external view returns (RiskParams memory);

    /**
     * Get all risk parameter limits in a single struct. These are the maximum limits at which the
     * risk parameters can be set by the admin of DolomiteMargin.
     *
     * @return  All global risk parameter limits
     */
    function getRiskLimits() external view returns (RiskLimits memory);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteInterestSetter } from "./IDolomiteInterestSetter.sol";
import { IDolomitePriceOracle } from "./IDolomitePriceOracle.sol";
import { IDolomiteStructs } from "./IDolomiteStructs.sol";


/**
 * @title   IDolomiteMarginAdmin
 * @author  Dolomite
 *
 * @notice  This interface defines the functions that can be called by the owner of DolomiteMargin.
 */
interface IDolomiteMarginAdmin is IDolomiteStructs {

    // ============ Token Functions ============

    /**
     * Withdraw an ERC20 token for which there is an associated market. Only excess tokens can be withdrawn. The number
     * of excess tokens is calculated by taking the current number of tokens held in DolomiteMargin, adding the number
     * of tokens owed to DolomiteMargin by borrowers, and subtracting the number of tokens owed to suppliers by
     * DolomiteMargin.
     */
    function ownerWithdrawExcessTokens(
        uint256 marketId,
        address recipient
    )
    external
    returns (uint256);

    /**
     * Withdraw an ERC20 token for which there is no associated market.
     */
    function ownerWithdrawUnsupportedTokens(
        address token,
        address recipient
    )
    external
    returns (uint256);

    // ============ Market Functions ============

    /**
     * Sets the number of non-zero balances an account may have within the same `accountIndex`. This ensures a user
     * cannot DOS the system by filling their account with non-zero balances (which linearly increases gas costs when
     * checking collateralization) and disallowing themselves to close the position, because the number of gas units
     * needed to process their transaction exceed the block's gas limit. In turn, this would  prevent the user from also
     * being liquidated, causing the all of the capital to be "stuck" in the position.
     *
     * Lowering this number does not "freeze" user accounts that have more than the new limit of balances, because this
     * variable is enforced by checking the users number of non-zero balances against the max or if it sizes down before
     * each transaction finishes.
     */
    function ownerSetAccountMaxNumberOfMarketsWithBalances(
        uint256 accountMaxNumberOfMarketsWithBalances
    )
    external;

    /**
     * Add a new market to DolomiteMargin. Must be for a previously-unsupported ERC20 token.
     */
    function ownerAddMarket(
        address token,
        IDolomitePriceOracle priceOracle,
        IDolomiteInterestSetter interestSetter,
        Decimal calldata marginPremium,
        Decimal calldata spreadPremium,
        uint256 maxWei,
        bool isClosing,
        bool isRecyclable
    )
    external;

    /**
     * Removes a market from DolomiteMargin, sends any remaining tokens in this contract to `salvager` and invokes the
     * recyclable callback
     */
    function ownerRemoveMarkets(
        uint[] calldata marketIds,
        address salvager
    )
    external;

    /**
     * Set (or unset) the status of a market to "closing". The borrowedValue of a market cannot increase while its
     * status is "closing".
     */
    function ownerSetIsClosing(
        uint256 marketId,
        bool isClosing
    )
    external;

    /**
     * Set the price oracle for a market.
     */
    function ownerSetPriceOracle(
        uint256 marketId,
        IDolomitePriceOracle priceOracle
    )
    external;

    /**
     * Set the interest-setter for a market.
     */
    function ownerSetInterestSetter(
        uint256 marketId,
        IDolomiteInterestSetter interestSetter
    )
    external;

    /**
     * Set a premium on the minimum margin-ratio for a market. This makes it so that any positions that include this
     * market require a higher collateralization to avoid being liquidated.
     */
    function ownerSetMarginPremium(
        uint256 marketId,
        Decimal calldata marginPremium
    )
    external;

    function ownerSetMaxWei(
        uint256 marketId,
        uint256 maxWei
    )
    external;

    /**
     * Set a premium on the liquidation spread for a market. This makes it so that any liquidations that include this
     * market have a higher spread than the global default.
     */
    function ownerSetSpreadPremium(
        uint256 marketId,
        Decimal calldata spreadPremium
    )
    external;

    // ============ Risk Functions ============

    /**
     * Set the global minimum margin-ratio that every position must maintain to prevent being liquidated.
     */
    function ownerSetMarginRatio(
        Decimal calldata ratio
    )
    external;

    /**
     * Set the global liquidation spread. This is the spread between oracle prices that incentivizes the liquidation of
     * risky positions.
     */
    function ownerSetLiquidationSpread(
        Decimal calldata spread
    )
    external;

    /**
     * Set the global earnings-rate variable that determines what percentage of the interest paid by borrowers gets
     * passed-on to suppliers.
     */
    function ownerSetEarningsRate(
        Decimal calldata earningsRate
    )
    external;

    /**
     * Set the global minimum-borrow value which is the minimum value of any new borrow on DolomiteMargin.
     */
    function ownerSetMinBorrowedValue(
        MonetaryValue calldata minBorrowedValue
    )
    external;

    // ============ Global Operator Functions ============

    /**
     * Approve (or disapprove) an address that is permissioned to be an operator for all accounts in DolomiteMargin.
     * Intended only to approve smart-contracts.
     */
    function ownerSetGlobalOperator(
        address operator,
        bool approved
    )
    external;

    /**
     * Approve (or disapprove) an auto trader that can only be called by a global operator. IE for expirations
     */
    function ownerSetAutoTraderSpecial(
        address autoTrader,
        bool special
    )
    external;
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteStructs } from "./IDolomiteStructs.sol";


/**
 * @title   IDolomitePriceOracle
 * @author  Dolomite
 *
 * @notice  Interface that Price Oracles for DolomiteMargin must implement in order to report prices.
 */
interface IDolomitePriceOracle {

    // ============ Public Functions ============

    /**
     * Get the price of a token
     *
     * @param  token  The ERC20 token address of the market
     * @return        The USD price of a base unit of the token, then multiplied by 10^(36 - decimals).
     *                So a USD-stable coin with 6 decimal places would return `price * 10^30`.
     *                This is the price of the base unit rather than the price of a "human-readable"
     *                token amount. Every ERC20 may have a different number of decimals.
     */
    function getPrice(
        address token
    )
    external
    view
    returns (IDolomiteStructs.MonetaryPrice memory);
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { IDolomiteInterestSetter } from "./IDolomiteInterestSetter.sol";
import { IDolomitePriceOracle } from "./IDolomitePriceOracle.sol";


/**
 * @title   IDolomiteStructs
 * @author  Dolomite
 *
 * @notice  This interface defines the structs used by DolomiteMargin
 */
interface IDolomiteStructs {

    // ========================= Enums =========================

    enum ActionType {
        Deposit,   // supply tokens
        Withdraw,  // borrow tokens
        Transfer,  // transfer balance between accounts
        Buy,       // buy an amount of some token (externally)
        Sell,      // sell an amount of some token (externally)
        Trade,     // trade tokens against another account
        Liquidate, // liquidate an undercollateralized or expiring account
        Vaporize,  // use excess tokens to zero-out a completely negative account
        Call       // send arbitrary data to an address
    }

    enum AssetDenomination {
        Wei, // the amount is denominated in wei
        Par  // the amount is denominated in par
    }

    enum AssetReference {
        Delta, // the amount is given as a delta from the current value
        Target // the amount is given as an exact number to end up at
    }

    // ========================= Structs =========================

    struct AccountInfo {
        address owner;  // The address that owns the account
        uint256 number; // A nonce that allows a single address to control many accounts
    }

    /**
     * Most-recently-cached account status.
     *
     * Normal: Can only be liquidated if the account values are violating the global margin-ratio.
     * Liquid: Can be liquidated no matter the account values.
     *         Can be vaporized if there are no more positive account values.
     * Vapor:  Has only negative (or zeroed) account values. Can be vaporized.
     *
     */
    enum AccountStatus {
        Normal,
        Liquid,
        Vapor
    }

    /*
     * Arguments that are passed to DolomiteMargin in an ordered list as part of a single operation.
     * Each ActionArgs has an actionType which specifies which action struct that this data will be
     * parsed into before being processed.
     */
    struct ActionArgs {
        ActionType actionType;
        uint256 accountId;
        AssetAmount amount;
        uint256 primaryMarketId;
        uint256 secondaryMarketId;
        address otherAddress;
        uint256 otherAccountId;
        bytes data;
    }

    struct AssetAmount {
        bool sign; // true if positive
        AssetDenomination denomination;
        AssetReference ref;
        uint256 value;
    }

    struct Decimal {
        uint256 value;
    }

    struct InterestIndex {
        uint96 borrow;
        uint96 supply;
        uint32 lastUpdate;
    }

    struct Market {
        address token;

        // Whether additional borrows are allowed for this market
        bool isClosing;

        // Whether this market can be removed and its ID can be recycled and reused
        bool isRecyclable;

        // Total aggregated supply and borrow amount of the entire market
        TotalPar totalPar;

        // Interest index of the market
        InterestIndex index;

        // Contract address of the price oracle for this market
        IDolomitePriceOracle priceOracle;

        // Contract address of the interest setter for this market
        IDolomiteInterestSetter interestSetter;

        // Multiplier on the marginRatio for this market, IE 5% (0.05 * 1e18). This number increases the market's
        // required collateralization by: reducing the user's supplied value (in terms of dollars) for this market and
        // increasing its borrowed value. This is done through the following operation:
        // `suppliedWei = suppliedWei + (assetValueForThisMarket / (1 + marginPremium))`
        // This number increases the user's borrowed wei by multiplying it by:
        // `borrowedWei = borrowedWei + (assetValueForThisMarket * (1 + marginPremium))`
        Decimal marginPremium;

        // Multiplier on the liquidationSpread for this market, IE 20% (0.2 * 1e18). This number increases the
        // `liquidationSpread` using the following formula:
        // `liquidationSpread = liquidationSpread * (1 + spreadPremium)`
        // NOTE: This formula is applied up to two times - one for each market whose spreadPremium is greater than 0
        // (when performing a liquidation between two markets)
        Decimal spreadPremium;

        // The maximum amount that can be held by the external. This allows the external to cap any additional risk
        // that is inferred by allowing borrowing against low-cap or assets with increased volatility. Setting this
        // value to 0 is analogous to having no limit. This value can never be below 0.
        Wei maxWei;
    }

    /*
     * The price of a base-unit of an asset. Has `36 - token.decimals` decimals
     */
    struct MonetaryPrice {
        uint256 value;
    }

    struct MonetaryValue {
        uint256 value;
    }

    struct OperatorArg {
        address operator;
        bool trusted;
    }

    struct Par {
        bool sign;
        uint256 value;
    }

    struct RiskLimits {
        // The highest that the ratio can be for liquidating under-water accounts
        uint64 marginRatioMax;
        // The highest that the liquidation rewards can be when a liquidator liquidates an account
        uint64 liquidationSpreadMax;
        // The highest that the supply APR can be for a market, as a proportion of the borrow rate. Meaning, a rate of
        // 100% (1e18) would give suppliers all of the interest that borrowers are paying. A rate of 90% would give
        // suppliers 90% of the interest that borrowers pay.
        uint64 earningsRateMax;
        // The highest min margin ratio premium that can be applied to a particular market. Meaning, a value of 100%
        // (1e18) would require borrowers to maintain an extra 100% collateral to maintain a healthy margin ratio. This
        // value works by increasing the debt owed and decreasing the supply held for the particular market by this
        // amount, plus 1e18 (since a value of 10% needs to be applied as `decimal.plusOne`)
        uint64 marginPremiumMax;
        // The highest liquidation reward that can be applied to a particular market. This percentage is applied
        // in addition to the liquidation spread in `RiskParams`. Meaning a value of 1e18 is 100%. It is calculated as:
        // `liquidationSpread * Decimal.onePlus(spreadPremium)`
        uint64 spreadPremiumMax;
        uint128 minBorrowedValueMax;
    }

    struct RiskParams {
        // Required ratio of over-collateralization
        Decimal marginRatio;

        // Percentage penalty incurred by liquidated accounts
        Decimal liquidationSpread;

        // Percentage of the borrower's interest fee that gets passed to the suppliers
        Decimal earningsRate;

        // The minimum absolute borrow value of an account
        // There must be sufficient incentivize to liquidate undercollateralized accounts
        MonetaryValue minBorrowedValue;

        // The maximum number of markets a user can have a non-zero balance for a given account.
        uint256 accountMaxNumberOfMarketsWithBalances;
    }

    struct TotalPar {
        uint128 borrow;
        uint128 supply;
    }

    struct Wei {
        bool sign;
        uint256 value;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
/*

    Copyright 2023 Dolomite

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

pragma solidity ^0.8.9;

import { Require } from "./Require.sol";


/**
 * @title   DolomiteMarginMath
 * @author  dYdX
 *
 * @notice  Library for non-standard Math functions
 */
library DolomiteMarginMath {

    // ============ Constants ============

    bytes32 internal constant _FILE = "DolomiteMarginMath";

    // ============ Library Functions ============

    /*
     * Return target * (numerator / denominator).
     */
    function getPartial(
        uint256 target,
        uint256 numerator,
        uint256 denominator
    )
    internal
    pure
    returns (uint256)
    {
        return target * numerator / denominator;
    }

    /*
     * Return target * (numerator / denominator), but rounded half-up. Meaning, a result of 101.1 rounds to 102
     * instead of 101.
     */
    function getPartialRoundUp(
        uint256 target,
        uint256 numerator,
        uint256 denominator
    )
    internal
    pure
    returns (uint256)
    {
        if (target == 0 || numerator == 0) {
            return 0;
        }
        return (((target * numerator) - 1) / denominator) + 1;
    }

    /*
     * Return target * (numerator / denominator), but rounded half-up. Meaning, a result of 101.5 rounds to 102
     * instead of 101.
     */
    function getPartialRoundHalfUp(
        uint256 target,
        uint256 numerator,
        uint256 denominator
    )
    internal
    pure
    returns (uint256)
    {
        if (target == 0 || numerator == 0) {
            return 0;
        }
        return (((target * numerator) + (denominator / 2)) / denominator);
    }

    function to128(
        uint256 number
    )
    internal
    pure
    returns (uint128)
    {
        uint128 result = uint128(number);
        Require.that(
            result == number,
            _FILE,
            "Unsafe cast to uint128",
            number
        );
        return result;
    }

    function to96(
        uint256 number
    )
    internal
    pure
    returns (uint96)
    {
        uint96 result = uint96(number);
        Require.that(
            result == number,
            _FILE,
            "Unsafe cast to uint96",
            number
        );
        return result;
    }

    function to32(
        uint256 number
    )
    internal
    pure
    returns (uint32)
    {
        uint32 result = uint32(number);
        Require.that(
            result == number,
            _FILE,
            "Unsafe cast to uint32",
            number
        );
        return result;
    }
}

// SPDX-License-Identifier: Apache-2.0
/*

    Copyright 2019 dYdX Trading Inc.

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

*/

pragma solidity ^0.8.9;


/**
 * @title   Require
 * @author  dYdX
 *
 * @notice  Stringifies parameters to pretty-print revert messages. Costs more gas than regular require()
 */
library Require {

    // ============ Constants ============

    uint256 private constant _ASCII_ZERO = 48; // '0'
    uint256 private constant _ASCII_RELATIVE_ZERO = 87; // 'a' - 10
    uint256 private constant _ASCII_LOWER_EX = 120; // 'x'
    bytes2 private constant _COLON = 0x3a20; // ': '
    bytes2 private constant _COMMA = 0x2c20; // ', '
    bytes2 private constant _LPAREN = 0x203c; // ' <'
    bytes1 private constant _RPAREN = 0x3e; // '>'
    uint256 private constant _FOUR_BIT_MASK = 0xf;

    // ============ Library Functions ============

    function that(
        bool must,
        bytes32 file,
        bytes32 reason
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason)
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        uint256 payloadA
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        uint256 payloadA,
        uint256 payloadB
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _COMMA,
                    _stringify(payloadB),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        address payloadA
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        address payloadA,
        uint256 payloadB
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _COMMA,
                    _stringify(payloadB),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        address payloadA,
        uint256 payloadB,
        uint256 payloadC
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _COMMA,
                    _stringify(payloadB),
                    _COMMA,
                    _stringify(payloadC),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        bytes32 payloadA
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _RPAREN
                )
            )
            );
        }
    }

    function that(
        bool must,
        bytes32 file,
        bytes32 reason,
        bytes32 payloadA,
        uint256 payloadB,
        uint256 payloadC
    )
    internal
    pure
    {
        if (!must) {
            revert(
            string(
                abi.encodePacked(
                    stringifyTruncated(file),
                    _COLON,
                    stringifyTruncated(reason),
                    _LPAREN,
                    _stringify(payloadA),
                    _COMMA,
                    _stringify(payloadB),
                    _COMMA,
                    _stringify(payloadC),
                    _RPAREN
                )
            )
            );
        }
    }

    // ============ Private Functions ============

    function stringifyTruncated(
        bytes32 input
    )
    internal
    pure
    returns (bytes memory)
    {
        // put the input bytes into the result
        bytes memory result = abi.encodePacked(input);

        // determine the length of the input by finding the location of the last non-zero byte
        for (uint256 i = 32; i > 0; ) {
            // reverse-for-loops with unsigned integer
            i--;

            // find the last non-zero byte in order to determine the length
            if (result[i] != 0) {
                uint256 length = i + 1;

                /* solhint-disable-next-line no-inline-assembly */
                assembly {
                    mstore(result, length) // r.length = length;
                }

                return result;
            }
        }

        // all bytes are zero
        return new bytes(0);
    }

    function _stringify(
        uint256 input
    )
    private
    pure
    returns (bytes memory)
    {
        if (input == 0) {
            return "0";
        }

        // get the final string length
        uint256 j = input;
        uint256 length;
        while (j != 0) {
            length++;
            j /= 10;
        }

        // allocate the string
        bytes memory bstr = new bytes(length);

        // populate the string starting with the least-significant character
        j = input;
        for (uint256 i = length; i > 0; ) {
            // reverse-for-loops with unsigned integer
            i--;

            // take last decimal digit
            bstr[i] = bytes1(uint8(_ASCII_ZERO + (j % 10)));

            // remove the last decimal digit
            j /= 10;
        }

        return bstr;
    }

    function _stringify(
        address input
    )
    private
    pure
    returns (bytes memory)
    {
        uint256 z = uint256(uint160(input));

        // addresses are "0x" followed by 20 bytes of data which take up 2 characters each
        bytes memory result = new bytes(42);

        // populate the result with "0x"
        result[0] = bytes1(uint8(_ASCII_ZERO));
        result[1] = bytes1(uint8(_ASCII_LOWER_EX));

        // for each byte (starting from the lowest byte), populate the result with two characters
        for (uint256 i = 0; i < 20; i++) {
            // each byte takes two characters
            uint256 shift = i * 2;

            // populate the least-significant character
            result[41 - shift] = _char(z & _FOUR_BIT_MASK);
            z = z >> 4;

            // populate the most-significant character
            result[40 - shift] = _char(z & _FOUR_BIT_MASK);
            z = z >> 4;
        }

        return result;
    }

    function _stringify(
        bytes32 input
    )
    private
    pure
    returns (bytes memory)
    {
        uint256 z = uint256(input);

        // bytes32 are "0x" followed by 32 bytes of data which take up 2 characters each
        bytes memory result = new bytes(66);

        // populate the result with "0x"
        result[0] = bytes1(uint8(_ASCII_ZERO));
        result[1] = bytes1(uint8(_ASCII_LOWER_EX));

        // for each byte (starting from the lowest byte), populate the result with two characters
        for (uint256 i = 0; i < 32; i++) {
            // each byte takes two characters
            uint256 shift = i * 2;

            // populate the least-significant character
            result[65 - shift] = _char(z & _FOUR_BIT_MASK);
            z = z >> 4;

            // populate the most-significant character
            result[64 - shift] = _char(z & _FOUR_BIT_MASK);
            z = z >> 4;
        }

        return result;
    }

    function _char(
        uint256 input
    )
    private
    pure
    returns (bytes1)
    {
        // return ASCII digit (0-9)
        if (input < 10) {
            return bytes1(uint8(input + _ASCII_ZERO));
        }

        // return ASCII letter (a-f)
        return bytes1(uint8(input + _ASCII_RELATIVE_ZERO));
    }
}

// SPDX-License-Identifier: Apache-2.0
/*

    Copyright 2019 dYdX Trading Inc.

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

*/

pragma solidity ^0.8.9;

import { DolomiteMarginMath } from "./DolomiteMarginMath.sol";
import { IDolomiteStructs } from "../interfaces/IDolomiteStructs.sol";


/**
 * @title   TypesLib
 * @author  dYdX
 *
 * @notice  Library for interacting with the basic structs used in DolomiteMargin
 */
library TypesLib {
    using DolomiteMarginMath for uint256;

    // ============ Par (Principal Amount) ============

    function zeroPar()
    internal
    pure
    returns (IDolomiteStructs.Par memory)
    {
        return IDolomiteStructs.Par({
            sign: false,
            value: 0
        });
    }

    function sub(
        IDolomiteStructs.Par memory a,
        IDolomiteStructs.Par memory b
    )
    internal
    pure
    returns (IDolomiteStructs.Par memory)
    {
        return add(a, negative(b));
    }

    function add(
        IDolomiteStructs.Par memory a,
        IDolomiteStructs.Par memory b
    )
    internal
    pure
    returns (IDolomiteStructs.Par memory)
    {
        IDolomiteStructs.Par memory result;
        if (a.sign == b.sign) {
            result.sign = a.sign;
            result.value = (a.value + b.value).to128();
        } else {
            if (a.value >= b.value) {
                result.sign = a.sign;
                result.value = (a.value - b.value).to128();
            } else {
                result.sign = b.sign;
                result.value = (b.value - a.value).to128();
            }
        }
        return result;
    }

    function equals(
        IDolomiteStructs.Par memory a,
        IDolomiteStructs.Par memory b
    )
    internal
    pure
    returns (bool)
    {
        if (a.value == b.value) {
            if (a.value == 0) {
                return true;
            }
            return a.sign == b.sign;
        }
        return false;
    }

    function negative(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (IDolomiteStructs.Par memory)
    {
        return IDolomiteStructs.Par({
            sign: !a.sign,
            value: a.value
        });
    }

    function isNegative(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (bool)
    {
        return !a.sign && a.value > 0;
    }

    function isPositive(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (bool)
    {
        return a.sign && a.value > 0;
    }

    function isZero(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (bool)
    {
        return a.value == 0;
    }

    function isLessThanZero(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (bool)
    {
        return a.value > 0 && !a.sign;
    }

    function isGreaterThanOrEqualToZero(
        IDolomiteStructs.Par memory a
    )
    internal
    pure
    returns (bool)
    {
        return isZero(a) || a.sign;
    }

    // ============ Wei (Token Amount) ============

    function zeroWei()
    internal
    pure
    returns (IDolomiteStructs.Wei memory)
    {
        return IDolomiteStructs.Wei({
            sign: false,
            value: 0
        });
    }

    function sub(
        IDolomiteStructs.Wei memory a,
        IDolomiteStructs.Wei memory b
    )
    internal
    pure
    returns (IDolomiteStructs.Wei memory)
    {
        return add(a, negative(b));
    }

    function add(
        IDolomiteStructs.Wei memory a,
        IDolomiteStructs.Wei memory b
    )
    internal
    pure
    returns (IDolomiteStructs.Wei memory)
    {
        IDolomiteStructs.Wei memory result;
        if (a.sign == b.sign) {
            result.sign = a.sign;
            result.value = a.value + b.value;
        } else {
            if (a.value >= b.value) {
                result.sign = a.sign;
                result.value = a.value - b.value;
            } else {
                result.sign = b.sign;
                result.value = b.value - a.value;
            }
        }
        return result;
    }

    function equals(
        IDolomiteStructs.Wei memory a,
        IDolomiteStructs.Wei memory b
    )
    internal
    pure
    returns (bool)
    {
        if (a.value == b.value) {
            if (a.value == 0) {
                return true;
            }
            return a.sign == b.sign;
        }
        return false;
    }

    function negative(
        IDolomiteStructs.Wei memory a
    )
    internal
    pure
    returns (IDolomiteStructs.Wei memory)
    {
        return IDolomiteStructs.Wei({
            sign: !a.sign,
            value: a.value
        });
    }

    function isNegative(
        IDolomiteStructs.Wei memory a
    )
    internal
    pure
    returns (bool)
    {
        return !a.sign && a.value > 0;
    }

    function isPositive(
        IDolomiteStructs.Wei memory a
    )
    internal
    pure
    returns (bool)
    {
        return a.sign && a.value > 0;
    }

    function isZero(
        IDolomiteStructs.Wei memory a
    )
    internal
    pure
    returns (bool)
    {
        return a.value == 0;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 10000,
    "details": {
      "yul": false
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isInitialized","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vaultFactory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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