Interfaces

interface IBarrierCore {
    function depositCarry(uint256 seriesId, uint256 usdgAmount) external;
    function depositGuard(uint256 seriesId, uint256 stockAmount) external;
    function strike(uint256 seriesId) external;
    function observe(uint256 seriesId) external;
    function settle(uint256 seriesId) external;
    function refund(uint256 seriesId) external;
    function claimCoupons(uint256 seriesId) external returns (uint256 usdg);
    function redeem(uint256 seriesId, uint256 units) external;
    function requiredPrefund(uint256 seriesId, uint256 stockAmount) external view returns (uint256);
    function pendingWork(uint256 start, uint256 count) external view returns (uint256[] memory);
}

interface ISeriesRegistry {
    struct Series {
        address stockToken;
        uint16 autocallBps;
        uint16 barrierBps;
        uint16 couponLowBps;
        uint16 couponHighBps;
        uint16 couponBps;      // zero until strike
        uint128 s0;            // 8 decimals, zero until strike
        uint64[13] closes;
        uint8 status;
        uint8 observed;
    }
    function getSeries(uint256 seriesId) external view returns (Series memory);
    function openSeriesOf(address stockToken) external view returns (uint256[] memory);
    function seriesCount() external view returns (uint256);
}

interface IBarrierLegs /* is IERC1155 */ {
    function carryId(uint256 seriesId) external pure returns (uint256);
    function guardId(uint256 seriesId) external pure returns (uint256);
}

interface IOracleAdapter {
    function closeAt(address stockToken, uint64 timestamp) external view returns (uint256 price, uint64 updatedAt, bool fallbackUsed);
    function latest(address stockToken) external view returns (uint256 price, uint64 updatedAt);
}

interface ITradingCalendar {
    function isTradingDay(uint64 day) external view returns (bool);
    function closeTime(uint64 day) external view returns (uint64);
    function nextTradingDay(uint64 day) external view returns (uint64);
}

interface IBuybackAuction { function price() external view returns (uint256); function sell(uint256 berrierIn, uint256 minUsdgOut) external; }
interface ITreasuryFloor { function floor() external view returns (uint256); function redeem(uint256 berrierIn) external; }
interface IBackstop /* is IERC4626 */ { function deployed() external view returns (uint256); function requestRedeem(uint256 shares) external; }

interface IVeBerrier {
    function createLock(uint256 amount, uint256 unlockTime) external;
    function increaseAmount(uint256 amount) external;
    function increaseUnlockTime(uint256 unlockTime) external;
    function balanceOf(address owner) external view returns (uint256);
}