storage

type Database interface {
	gomatrixserverlib.KeyDatabase

	UpdateRoom(ctx context.Context, roomID string, addHosts []types.JoinedHost, removeHosts []string, purgeRoomFirst bool) (joinedHosts []types.JoinedHost, err error)

	GetJoinedHosts(ctx context.Context, roomID string) ([]types.JoinedHost, error)
	GetAllJoinedHosts(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
	// GetJoinedHostsForRooms returns the complete set of servers in the rooms given.
	GetJoinedHostsForRooms(ctx context.Context, roomIDs []string, excludeSelf, excludeBlacklisted bool) ([]gomatrixserverlib.ServerName, error)

	StoreJSON(ctx context.Context, js string) (*shared.Receipt, error)

	GetPendingPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, limit int) (pdus map[*shared.Receipt]*gomatrixserverlib.HeaderedEvent, err error)
	GetPendingEDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, limit int) (edus map[*shared.Receipt]*gomatrixserverlib.EDU, err error)

	AssociatePDUWithDestinations(ctx context.Context, destinations map[gomatrixserverlib.ServerName]struct{}, receipt *shared.Receipt) error
	AssociateEDUWithDestinations(ctx context.Context, destinations map[gomatrixserverlib.ServerName]struct{}, receipt *shared.Receipt, eduType string, expireEDUTypes map[string]time.Duration) error

	CleanPDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, receipts []*shared.Receipt) error
	CleanEDUs(ctx context.Context, serverName gomatrixserverlib.ServerName, receipts []*shared.Receipt) error

	GetPendingPDUServerNames(ctx context.Context) ([]gomatrixserverlib.ServerName, error)
	GetPendingEDUServerNames(ctx context.Context) ([]gomatrixserverlib.ServerName, error)

	// these don't have contexts passed in as we want things to happen regardless of the request context
	AddServerToBlacklist(serverName gomatrixserverlib.ServerName) error
	RemoveServerFromBlacklist(serverName gomatrixserverlib.ServerName) error
	RemoveAllServersFromBlacklist() error
	IsServerBlacklisted(serverName gomatrixserverlib.ServerName) (bool, error)

	AddOutboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string, renewalInterval int64) error
	RenewOutboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string, renewalInterval int64) error
	GetOutboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string) (*types.OutboundPeek, error)
	GetOutboundPeeks(ctx context.Context, roomID string) ([]types.OutboundPeek, error)

	AddInboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string, renewalInterval int64) error
	RenewInboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string, renewalInterval int64) error
	GetInboundPeek(ctx context.Context, serverName gomatrixserverlib.ServerName, roomID, peekID string) (*types.InboundPeek, error)
	GetInboundPeeks(ctx context.Context, roomID string) ([]types.InboundPeek, error)

	// Update the notary with the given server keys from the given server name.
	UpdateNotaryKeys(ctx context.Context, serverName gomatrixserverlib.ServerName, serverKeys gomatrixserverlib.ServerKeys) error
	// Query the notary for the server keys for the given server. If `optKeyIDs` is not empty, multiple server keys may be returned (between 1 - len(optKeyIDs))
	// such that the combination of all server keys will include all the `optKeyIDs`.
	GetNotaryKeys(ctx context.Context, serverName gomatrixserverlib.ServerName, optKeyIDs []gomatrixserverlib.KeyID) ([]gomatrixserverlib.ServerKeys, error)
	// DeleteExpiredEDUs cleans up expired EDUs
	DeleteExpiredEDUs(ctx context.Context) error
}