pragma solidity 0.5.17;

/// @title TBTCDevelopmentConstants
/// @notice Constants for development testnet usages; tuned for testing and
///         faster iteration rather than security. These should NOT be deployed
///         on mainnet or mainnet-like ("staging") environments.
library TBTCDevelopmentConstants {
    // This is intended to make it easy to update system params
    // During testing swap this out with another constats contract

    // System Parameters
    uint256 public constant BENEFICIARY_FEE_DIVISOR = 1000; // 1/1000 = 10 bps = 0.1% = 0.001
    uint256 public constant SATOSHI_MULTIPLIER = 10**10; // multiplier to convert satoshi to TBTC token units
    uint256 public constant DEPOSIT_TERM_LENGTH = 180 * 24 * 60 * 60; // 180 days in seconds
    uint256 public constant TX_PROOF_DIFFICULTY_FACTOR = 1; // confirmations on the Bitcoin chain

    // Redemption Flow
    uint256 public constant REDEMPTION_SIGNATURE_TIMEOUT = 2 * 60 * 60; // seconds
    uint256 public constant INCREASE_FEE_TIMER = 4 * 60 * 60; // seconds
    uint256 public constant REDEMPTION_PROOF_TIMEOUT = 6 * 60 * 60; // seconds
    uint256 public constant MINIMUM_REDEMPTION_FEE = 150; // satoshi

    // Funding Flow
    uint256 public constant FUNDING_PROOF_TIMEOUT = 3 * 60 * 60; // seconds
    uint256 public constant FORMATION_TIMEOUT = 3 * 60 * 60; // seconds

    // Liquidation Flow
    uint256 public constant COURTESY_CALL_DURATION = 6 * 60 * 60; // seconds
    uint256 public constant AUCTION_DURATION = 24 * 60 * 60; // seconds

    // Getters for easy access
    function getBeneficiaryRewardDivisor() external pure returns (uint256) {
        return BENEFICIARY_FEE_DIVISOR;
    }

    function getSatoshiMultiplier() external pure returns (uint256) {
        return SATOSHI_MULTIPLIER;
    }

    function getDepositTerm() external pure returns (uint256) {
        return DEPOSIT_TERM_LENGTH;
    }

    function getTxProofDifficultyFactor() external pure returns (uint256) {
        return TX_PROOF_DIFFICULTY_FACTOR;
    }

    function getSignatureTimeout() external pure returns (uint256) {
        return REDEMPTION_SIGNATURE_TIMEOUT;
    }

    function getIncreaseFeeTimer() external pure returns (uint256) {
        return INCREASE_FEE_TIMER;
    }

    function getRedemptionProofTimeout() external pure returns (uint256) {
        return REDEMPTION_PROOF_TIMEOUT;
    }

    function getMinimumRedemptionFee() external pure returns (uint256) {
        return MINIMUM_REDEMPTION_FEE;
    }

    function getFundingTimeout() external pure returns (uint256) {
        return FUNDING_PROOF_TIMEOUT;
    }

    function getSigningGroupFormationTimeout() external pure returns (uint256) {
        return FORMATION_TIMEOUT;
    }

    function getCourtesyCallTimeout() external pure returns (uint256) {
        return COURTESY_CALL_DURATION;
    }

    function getAuctionDuration() external pure returns (uint256) {
        return AUCTION_DURATION;
    }
}