deal

const (
	// QueryItemAvailable indicates requested part of the piece is available to be
	// served
	QueryItemAvailable QueryItemStatus = iota

	// QueryItemUnavailable indicates the piece either does not contain the requested
	// item or it cannot be served
	QueryItemUnavailable

	// QueryItemUnknown indicates the provider cannot determine if the given item
	// is part of the requested piece (for example, if the piece is sealed and the
	// miner does not maintain a payload CID index)
	QueryItemUnknown
)

const (
	// QueryResponseAvailable indicates a provider has a piece and is prepared to
	// return it
	QueryResponseAvailable QueryResponseStatus = iota

	// QueryResponseUnavailable indicates a provider either does not have or cannot
	// serve the queried piece to the client
	QueryResponseUnavailable

	// QueryResponseError indicates something went wrong generating a query response
	QueryResponseError
)

const (
	// StatusNew is a deal that nothing has happened with yet
	StatusNew Status = iota

	// StatusUnsealing means the provider is unsealing data
	StatusUnsealing

	// StatusUnsealed means the provider has finished unsealing data
	StatusUnsealed

	// StatusWaitForAcceptance means we're waiting to hear back if the provider accepted our deal
	StatusWaitForAcceptance

	// StatusPaymentChannelCreating is the status set while waiting for the
	// payment channel creation to complete
	StatusPaymentChannelCreating

	// StatusPaymentChannelAddingFunds is the status when we are waiting for funds
	// to finish being sent to the payment channel
	StatusPaymentChannelAddingFunds

	// StatusAccepted means a deal has been accepted by a provider
	// and its is ready to proceed with retrieval
	StatusAccepted

	// StatusFundsNeededUnseal means a deal has been accepted by a provider
	// and payment is needed to unseal the data
	StatusFundsNeededUnseal

	// StatusFailing indicates something went wrong during a retrieval,
	// and we are cleaning up before terminating with an error
	StatusFailing

	// StatusRejected indicates the provider rejected a client's deal proposal
	// for some reason
	StatusRejected

	// StatusFundsNeeded indicates the provider needs a payment voucher to
	// continue processing the deal
	StatusFundsNeeded

	// StatusSendFunds indicates the client is now going to send funds because we reached the threshold of the last payment
	StatusSendFunds

	// StatusSendFundsLastPayment indicates the client is now going to send final funds because
	// we reached the threshold of the final payment
	StatusSendFundsLastPayment

	// StatusOngoing indicates the provider is continuing to process a deal
	StatusOngoing

	// StatusFundsNeededLastPayment indicates the provider needs a payment voucher
	// in order to complete a deal
	StatusFundsNeededLastPayment

	// StatusCompleted indicates a deal is complete
	StatusCompleted

	// StatusDealNotFound indicates an update was received for a deal that could
	// not be identified
	StatusDealNotFound

	// StatusErrored indicates a deal has terminated in an error
	StatusErrored

	// StatusBlocksComplete indicates that all blocks have been processed for the piece
	StatusBlocksComplete

	// StatusFinalizing means the last payment has been received and
	// we are just confirming the deal is complete
	StatusFinalizing

	// StatusCompleting is just an inbetween state to perform final cleanup of
	// complete deals
	StatusCompleting

	// StatusCheckComplete is used for when the provided completes without a last payment
	// requested cycle, to verify we have received all blocks
	StatusCheckComplete

	// StatusCheckFunds means we are looking at the state of funding for the channel to determine
	// if more money is incoming
	StatusCheckFunds

	// StatusInsufficientFunds indicates we have depleted funds for the retrieval payment channel
	// - we can resume after funds are added
	StatusInsufficientFunds

	// StatusPaymentChannelAllocatingLane is the status when we are making a lane for this channel
	StatusPaymentChannelAllocatingLane

	// StatusCancelling means we are cancelling an inprogress deal
	StatusCancelling

	// StatusCancelled means a deal has been cancelled
	StatusCancelled

	// StatusClientWaitingForLastBlocks means that the provider has told
	// the client that all blocks were sent for the deal, and the client is
	// waiting for the last blocks to arrive. This should only happen when
	// the deal price per byte is zero (if it's not zero the provider asks
	// for final payment after sending the last blocks).
	StatusClientWaitingForLastBlocks

	// StatusPaymentChannelAddingInitialFunds means that a payment channel
	// exists from an earlier deal between client and provider, but we need
	// to add funds to the channel for this particular deal
	StatusPaymentChannelAddingInitialFunds
)