gas

type ArbConfig interface {
	LimitMax() uint32
}

type BlockHistoryConfig interface {
	evmconfig.BlockHistory
}

type BlockHistoryEstimator struct {
	services.StateMachine
	// contains filtered or unexported fields
}

type Config interface {
	ChainType() config.ChainType
	FinalityDepth() uint32
	FinalityTagEnabled() bool
}

type DynamicFee struct {
	FeeCap *assets.Wei
	TipCap *assets.Wei
}

type EvmEstimator interface {
	commontypes.HeadTrackable[*evmtypes.Head, common.Hash]
	services.Service

	// GetLegacyGas Calculates initial gas fee for non-EIP1559 transaction
	// maxGasPriceWei parameter is the highest possible gas fee cap that the function will return
	GetLegacyGas(ctx context.Context, calldata []byte, gasLimit uint32, maxGasPriceWei *assets.Wei, opts ...feetypes.Opt) (gasPrice *assets.Wei, chainSpecificGasLimit uint32, err error)
	// BumpLegacyGas Increases gas price and/or limit for non-EIP1559 transactions
	// if the bumped gas fee is greater than maxGasPriceWei, the method returns an error
	// attempts must:
	//   - be sorted in order from highest price to lowest price
	//   - all be of transaction type 0x0 or 0x1
	BumpLegacyGas(ctx context.Context, originalGasPrice *assets.Wei, gasLimit uint32, maxGasPriceWei *assets.Wei, attempts []EvmPriorAttempt) (bumpedGasPrice *assets.Wei, chainSpecificGasLimit uint32, err error)
	// GetDynamicFee Calculates initial gas fee for gas for EIP1559 transactions
	// maxGasPriceWei parameter is the highest possible gas fee cap that the function will return
	GetDynamicFee(ctx context.Context, gasLimit uint32, maxGasPriceWei *assets.Wei) (fee DynamicFee, chainSpecificGasLimit uint32, err error)
	// BumpDynamicFee Increases gas price and/or limit for non-EIP1559 transactions
	// if the bumped gas fee or tip caps are greater than maxGasPriceWei, the method returns an error
	// attempts must:
	//   - be sorted in order from highest price to lowest price
	//   - all be of transaction type 0x2
	BumpDynamicFee(ctx context.Context, original DynamicFee, gasLimit uint32, maxGasPriceWei *assets.Wei, attempts []EvmPriorAttempt) (bumped DynamicFee, chainSpecificGasLimit uint32, err error)
}

type EvmFee struct {
	// legacy fees
	Legacy *assets.Wei

	// dynamic/EIP1559 fees
	DynamicFeeCap *assets.Wei
	DynamicTipCap *assets.Wei
}

type EvmFeeEstimator interface {
	services.Service
	commontypes.HeadTrackable[*evmtypes.Head, common.Hash]

	// L1Oracle returns the L1 gas price oracle only if the chain has one, e.g. OP stack L2s and Arbitrum.
	L1Oracle() rollups.L1Oracle
	GetFee(ctx context.Context, calldata []byte, feeLimit uint32, maxFeePrice *assets.Wei, opts ...feetypes.Opt) (fee EvmFee, chainSpecificFeeLimit uint32, err error)
	BumpFee(ctx context.Context, originalFee EvmFee, feeLimit uint32, maxFeePrice *assets.Wei, attempts []EvmPriorAttempt) (bumpedFee EvmFee, chainSpecificFeeLimit uint32, err error)

	// GetMaxCost returns the total value = max price x fee units + transferred value
	GetMaxCost(ctx context.Context, amount assets.Eth, calldata []byte, feeLimit uint32, maxFeePrice *assets.Wei, opts ...feetypes.Opt) (*big.Int, error)
}

type EvmPriorAttempt struct {
	ChainSpecificFeeLimit   uint32
	BroadcastBeforeBlockNum *int64
	TxHash                  common.Hash
	TxType                  int
	GasPrice                *assets.Wei
	DynamicFee              DynamicFee
}

type GasEstimatorConfig interface {
	EIP1559DynamicFees() bool
	BumpPercent() uint16
	BumpThreshold() uint64
	BumpMin() *assets.Wei
	FeeCapDefault() *assets.Wei
	LimitMax() uint32
	LimitMultiplier() float32
	PriceDefault() *assets.Wei
	TipCapDefault() *assets.Wei
	TipCapMin() *assets.Wei
	PriceMin() *assets.Wei
	PriceMax() *assets.Wei
	Mode() string
}

type SuggestedPriceEstimator struct {
	services.StateMachine

	GasPrice *assets.Wei
	// contains filtered or unexported fields
}

type WrappedEvmEstimator struct {
	services.StateMachine

	EvmEstimator
	EIP1559Enabled bool
	// contains filtered or unexported fields
}