// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IFYToken.sol";
import "./IOracle.sol";

library DataTypes {
    // ======== Cauldron data types ========
    struct Series {
        IFYToken fyToken; // Redeemable token for the series.
        bytes6 baseId; // Asset received on redemption.
        uint32 maturity; // Unix time at which redemption becomes possible.
        // bytes2 free
    }

    struct Debt {
        uint96 max; // Maximum debt accepted for a given underlying, across all series
        uint24 min; // Minimum debt accepted for a given underlying, across all series
        uint8 dec; // Multiplying factor (10**dec) for max and min
        uint128 sum; // Current debt for a given underlying, across all series
    }

    struct SpotOracle {
        IOracle oracle; // Address for the spot price oracle
        uint32 ratio; // Collateralization ratio to multiply the price for
        // bytes8 free
    }

    struct Vault {
        address owner;
        bytes6 seriesId; // Each vault is related to only one series, which also determines the underlying.
        bytes6 ilkId; // Asset accepted as collateral
    }

    struct Balances {
        uint128 art; // Debt amount
        uint128 ink; // Collateral amount
    }

    // ======== Witch data types ========
    struct Auction {
        address owner;
        uint32 start;
        bytes6 baseId; // We cache the baseId here
        uint128 ink;
        uint128 art;
        address auctioneer;
        bytes6 ilkId; // We cache the ilkId here
        bytes6 seriesId; // We cache the seriesId here
    }

    struct Line {
        uint32 duration; // Time that auctions take to go to minimal price and stay there
        uint64 vaultProportion; // Proportion of the vault that is available each auction (1e18 = 100%)
        uint64 collateralProportion; // Proportion of collateral that is sold at auction start (1e18 = 100%)
    }

    struct Limits {
        uint128 max; // Maximum concurrent auctioned collateral
        uint128 sum; // Current concurrent auctioned collateral
    }
}

library VRDataTypes {
    struct Vault {
        address owner;
        bytes6 baseId; // Each variable rate vault is related to only one base.
        bytes6 ilkId; // Asset accepted as collateral
    }
}