package raft

// WatchHandler defines the function signature for watching key changes
type WatchHandler func(key, value string, eventType KVCommandType)

// Watcher interface for specialized handling
type Watcher interface {
	OnWait(key, value string, eventType KVCommandType)
}

// WatcherWrapper adapts a Watcher interface to a WatchHandler function
func WatcherWrapper(w Watcher) WatchHandler {
	return func(key, value string, eventType KVCommandType) {
		w.OnWait(key, value, eventType)
	}
}