package liquidity

// Reason is an enum which represents the various reasons we have for not
// executing a swap.
type Reason uint8

const (
	// ReasonNone is the zero value reason, added so that this enum can
	// align with the numeric values used in our protobufs and avoid
	// ambiguity around default zero values.
	ReasonNone Reason = iota

	// ReasonBudgetNotStarted indicates that we do not recommend any swaps
	// because the start time for our budget has not arrived yet.
	ReasonBudgetNotStarted

	// ReasonSweepFees indicates that the estimated fees to sweep swaps
	// are too high right now.
	ReasonSweepFees

	// ReasonBudgetElapsed indicates that the autoloop budget for the
	// period has been elapsed.
	ReasonBudgetElapsed

	// ReasonInFlight indicates that the limit on in-flight automatically
	// dispatched swaps has already been reached.
	ReasonInFlight

	// ReasonSwapFee indicates that the server fee for a specific swap is
	// too high.
	ReasonSwapFee

	// ReasonMinerFee indicates that the miner fee for a specific swap is
	// to high.
	ReasonMinerFee

	// ReasonPrepay indicates that the prepay fee for a specific swap is
	// too high.
	ReasonPrepay

	// ReasonFailureBackoff indicates that a swap has recently failed for
	// this target, and the backoff period has not yet passed.
	ReasonFailureBackoff

	// ReasonLoopOut indicates that a loop out swap is currently utilizing
	// the channel, so it is not eligible.
	ReasonLoopOut

	// ReasonLoopIn indicates that a loop in swap is currently in flight
	// for the peer, so it is not eligible.
	ReasonLoopIn

	// ReasonLiquidityOk indicates that a target meets the liquidity
	// balance expressed in its rule, so no swap is needed.
	ReasonLiquidityOk

	// ReasonBudgetInsufficient indicates that we cannot perform a swap
	// because we do not have enough pending budget available. This differs
	// from budget elapsed, because we still have some budget available,
	// but we have allocated it to other swaps.
	ReasonBudgetInsufficient
)