Events

tilttek/exchange

Redemptions, Transfers and Trades tell their Announcer what happened, once, when it happens; an exchange asked again tells nothing. SilentAnnouncer tells no one; the bundle dispatches the events to the application's event dispatcher. Every event implements Event\ExchangeEvent.

Event	When	Carries
`RewardReserved`	The points of a reservation are spent: deliver now	`reservation`
`ReservationConfirmed`	The application confirmed the delivery	`reservation`
`ReservationCancelled`	The application cancelled; the points are back	`reservation`
`ReservationExpired`	The reservation outlived its lifetime; the points are back	`reservation`
`PointsTransferred`	A member gave points to another	`transfer`
`OfferMade`	A member offered a trade	`offer`
`OfferAccepted`	Both sides changed hands	`offer`
`OfferDeclined`	The recipient declined	`offer`
`OfferWithdrawn`	The proposer withdrew	`offer`
`OfferCountered`	The recipient answered with their own offer	`offer`, closed, and `counter`, open
`OfferExpired`	The offer outlived its lifetime	`offer`

Delivering a reward is the application's affair: a listener of RewardReserved sends the code, applies the discount or books the seat, then confirms the reservation, or cancels it when it cannot.