GoodFundManager

Has permissions to collect interest from the staking contracts and permissions to tell GoodMarketMaker to mint. Anyone can trigger the collection and minting process.

Events

StakingRewardSet

Emitted when admin sets the reward for particular staking contract.

Parameter name	Annotation
_rewardsPerBlock	The amount of rewards per block that should be distributed.
_stakingAddress	An address of the staking contract.
_blockStart	The number of block from which the distribution starts.
_blockEnd	The number of block from which the distribution ends.
_isBlackListed	Answers the question: is the staking contract allowed to mint the rewards.

event StakingRewardSet(
    uint32 _rewardsPerBlock,
    address _stakingAddress,
    uint32 _blockStart,
    uint32 _blockEnd,
    bool _isBlackListed
);

GasCostSet

Emitted when admin sets the gas cost for G$ minting.

Parameter name	Annotation
_newGasCost	The amount of gas it costs for minting G$ reward.

event GasCostSet(uint256 newGasCost);

CollectInterestTimeThresholdSet

Emitted when admin sets the number that is used in a calculation of time after collectInterest method call.

Parameter name	Annotation
newCollectInterestTimeThreshold	This number is used in a calculation that should determine how much time should pass after collectInterest method called.

event CollectInterestTimeThresholdSet(uint256 newCollectInterestTimeThreshold);

InterestMultiplierSet

Emitted when admin sets the multiplier.

Parameter name	Annotation
newInterestMultiplier	This amount is used in determination of how much times larger should be collected interest than spent gas when collectInterestTimeThreshold did not pass.

event InterestMultiplierSet(uint8 newInterestMultiplier);

GasCostSet

Emitted when admin sets the gas cost for G$ minting.

Parameter name	Annotation
newGasCostExceptInterestCollect	The new gas cost for required transactions after collecting interest in collectInterest function. The aim of this is to know if caller has enough gas left to keep collecting interest.

event GasCostExceptInterestCollectSet(uint256 newGasCostExceptInterestCollect);

buy

Converts cDai tokens to GD tokens and updates the bonding curve params. The buy occurs only if the G$ return is above the given minimum. It is possible to buy only with cDAI and when the contract is set to active. MUST call to cDAI approve prior this action to allow this contract to accomplish the conversion.

Parameter name	Annotation
_tokenAmount	The amount of cDAI tokens that should be converted to G$ tokens.
_minReturn	The minimum allowed return in G$ tokens.
_targetAddress	Address of G$ and GOOD recipient if different than msg.sender.

Returns: How much G$ tokens were transferred.

function buy(
    uint256 _tokenAmount,
    uint256 _minReturn,
    address _targetAddress
) external returns (uint256);

collectInterest

Collects UBI interest in iToken from a given staking contract and transfers that interest to the reserve contract. Then transfers the given G$ which received from the reserve contract back to the staking contract and to the bridge, which locks the funds and then the G$ tokens are been minted to the given address on the sidechain.

Parameter name	Annotation
_stakingContracts	An array of staking contract addresses from which contracts to collect interest.
_forceAndWaiverRewards	The boolean flag, that if it is set to true, it'll collect interest even if threshold is not passed, but won't reward caller with gas refund and reward itself.

function collectInterest(
	address[] calldata _stakingContracts,
	bool _forceAndWaiverRewards
) external;

calcSortedContracts

The function gets interest informations of staking contracts in the sorted array. By highest interest to lowest interest amount.

Returns: An array of struct instances. The struct explained below.

Field name	Annotation	Field type
contractAddress	Staking contract address which interest will be collected.	address
interestBalance	Interest amount that staking contract has.	uint256
collectedInterestSoFar	Collected interest amount so far including the contract to which the stuct instance belong.	uint256
gasCostSoFar	Spent gas amount so far including this contract.	uin256
maxGasAmountSoFar	Max gas amount that can spend to collect this interest according to interest amount.	uin256
maxGasLargerOrEqualRequired	Bool that indicates if max gas amount larger or equal to actual gas needed.	bool

function calcSortedContracts() public view returns (InterestInfo[] memory);

mintReward

This function mint to users reward tokens which they earned by staking contract.

Parameter name	Annotation
_token	Reserve token (currently can be just cDAI).
_user	User to get rewards.

function mintReward(address _token, address _user) public;