types

type Conflict struct {
	EventType     string
	AggregateID   string
	ChangedFields []string
	Metadata      map[string]interface{}

	Local  EventWithVersion
	Remote EventWithVersion
}

type ConflictResolver interface {
	Resolve(ctx context.Context, c Conflict) (ResolvedConflict, error)
}

type Event interface {
	// ID returns a unique identifier for this event
	ID() string

	// Type returns the event type (e.g., "UserCreated", "OrderUpdated")
	Type() string

	// AggregateID returns the ID of the aggregate this event belongs to
	AggregateID() string

	// Data returns the event payload
	Data() interface{}

	// Metadata returns additional event metadata
	Metadata() map[string]interface{}
}

type EventWithVersion struct {
	Event   Event
	Version Version
}

type ResolvedConflict struct {
	ResolvedEvents []EventWithVersion
	Decision       string
	Reasons        []string
}

type Version interface {
	// Compare returns -1 if this version is before other, 0 if equal, 1 if after
	Compare(other Version) int

	// String returns a string representation of the version
	String() string

	// IsZero returns true if this is the zero/initial version
	IsZero() bool
}