/**
 * @dev Funding fees calculations for v10+ trades
 * @dev Based on skew-based funding rate model with velocity and APR multipliers
 */
import { FundingFeeParams, PairFundingFeeData, GetFundingFeeContext, TradeFundingFeeResult, PairPendingAccFundingFeesResult, PairOiAfterV10 } from "./types";
import { GetPairFundingFeeContext } from "./pairContext";
/**
 * @dev Calculates current funding velocity per year based on skew
 * @param netExposureToken Net exposure (long - short) in tokens
 * @param netExposureUsd Net exposure in USD
 * @param skewCoefficientPerYear Skew coefficient per year from params
 * @param absoluteVelocityPerYearCap Cap on velocity per year
 * @param thetaThresholdUsd Minimum exposure USD to start charging funding fees
 * @returns Current yearly funding velocity
 */
export declare const getCurrentFundingVelocityPerYear: (netExposureToken: number, netExposureUsd: number, skewCoefficientPerYear: number, absoluteVelocityPerYearCap: number, thetaThresholdUsd: number) => number;
/**
 * @dev Calculates seconds until funding rate reaches zero
 * @param lastFundingRatePerSecondP Last funding rate per second
 * @param currentVelocityPerYear Current velocity per year
 * @returns Seconds until rate reaches zero
 */
export declare const getSecondsToReachZeroRate: (lastFundingRatePerSecondP: number, currentVelocityPerYear: number) => number;
/**
 * @dev Calculates average and current funding rate per second
 * @param lastFundingRatePerSecondP Last funding rate per second
 * @param absoluteRatePerSecondCap Absolute cap on funding rate per second
 * @param currentVelocityPerYear Current velocity per year
 * @param secondsSinceLastUpdate Seconds elapsed since last update
 * @returns Average and current funding rate per second
 */
export declare const getAvgFundingRatePerSecondP: (lastFundingRatePerSecondP: number, absoluteRatePerSecondCap: number, currentVelocityPerYear: number, secondsSinceLastUpdate: number) => {
    avgFundingRatePerSecondP: number;
    currentFundingRatePerSecondP: number;
};
/**
 * @dev Calculates APR multipliers for long and short sides based on OI ratio
 * @param avgFundingRatePerSecondP Average funding rate per second
 * @param pairOiLongToken Long OI in tokens
 * @param pairOiShortToken Short OI in tokens
 * @param aprMultiplierEnabled Whether APR multiplier is enabled
 * @returns Long and short APR multipliers
 */
export declare const getLongShortAprMultiplier: (avgFundingRatePerSecondP: number, pairOiLongToken: number, pairOiShortToken: number, aprMultiplierEnabled: boolean) => {
    longAprMultiplier: number;
    shortAprMultiplier: number;
};
/**
 * @dev Calculates pending accumulated funding fees for a pair
 * @param params Funding fee parameters
 * @param data Current funding fee data
 * @param currentPairPrice Current pair price
 * @param pairOiToken Pair OI after v10
 * @param netExposureToken Net exposure in tokens
 * @param netExposureUsd Net exposure in USD
 * @param currentTimestamp Current timestamp
 * @returns Pending accumulated funding fees and current rate
 */
export declare const getPairPendingAccFundingFees: (params: FundingFeeParams, data: PairFundingFeeData, currentPairPrice: number, pairOiToken: PairOiAfterV10, netExposureToken: number, netExposureUsd: number, currentTimestamp: number) => PairPendingAccFundingFeesResult;
/**
 * @dev Calculates funding fees for a specific trade
 * @param trade Trade parameters (collateral amount, leverage, open price, long/short)
 * @param tradeInfo Trade info (contracts version)
 * @param tradeFeesData Trade fees data containing initial acc funding fee
 * @param currentPairPrice Current pair price
 * @param context Pair-specific funding fee context
 * @returns Funding fee in collateral tokens
 */
export declare const getTradeFundingFeesCollateral: (trade: {
    collateralAmount: number;
    leverage: number;
    openPrice: number;
    long: boolean;
}, tradeInfo: {
    contractsVersion: number;
}, tradeFeesData: {
    initialAccFundingFeeP: number;
}, currentPairPrice: number, context: GetPairFundingFeeContext) => number;
/**
 * @dev Main function to calculate funding fees for a trade within context
 * @param input Trade funding fee input parameters
 * @param context Funding fee context with params and data
 * @returns Complete funding fee calculation result
 */
export declare const getTradeFundingFees: (input: {
    collateralIndex: number;
    pairIndex: number;
    trade: {
        collateralAmount: number;
        leverage: number;
        openPrice: number;
        long: boolean;
    };
    tradeInfo: {
        contractsVersion: number;
    };
    initialAccFundingFeeP: number;
    currentPairPrice: number;
    pairOiToken: PairOiAfterV10;
    netExposureToken: number;
    netExposureUsd: number;
}, context: GetFundingFeeContext) => TradeFundingFeeResult;
/**
 * @dev Simple version of getTradeFundingFeesCollateral for backward compatibility
 * @param trade Trade parameters
 * @param tradeInfo Trade info with contracts version
 * @param initialAccFundingFeeP Initial accumulated funding fee
 * @param currentAccFundingFeeP Current accumulated funding fee
 * @returns Funding fee in collateral tokens
 */
export declare const getTradeFundingFeesCollateralSimple: (trade: {
    collateralAmount: number;
    leverage: number;
    openPrice: number;
    long: boolean;
}, tradeInfo: {
    contractsVersion: number;
}, initialAccFundingFeeP: number, currentAccFundingFeeP: number) => number;
export * as FundingFees from "./types";
export type { FundingFeeParams, PairFundingFeeData, PairGlobalParams, TradeInitialAccFundingFees, PairOiAfterV10, FundingRateCalculation, GetFundingFeeContext, TradeFundingFeeResult, PairPendingAccFundingFeesResult, PairAccumulatedFees, TradeInitialAccFees, } from "./types";
export type { GetPairFundingFeeContext } from "./pairContext";
export * from "./fetcher";
export * from "./pairContext";
export * from "./builder";