WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes

internal/event/global.go

@@ -0,0 +1,57 @@
+package event
+
+import (
+	"context"
+	"sync"
+)
+
+var (
+	// globalEventBus is the global event bus instance
+	globalEventBus *EventBus
+	once           sync.Once
+)
+
+// GetGlobalEventBus returns the global event bus instance
+// It uses singleton pattern to ensure only one instance exists
+func GetGlobalEventBus() *EventBus {
+	once.Do(func() {
+		globalEventBus = NewEventBus()
+	})
+	return globalEventBus
+}
+
+// SetGlobalEventBus sets the global event bus instance
+// This is useful for testing or custom configurations
+func SetGlobalEventBus(bus *EventBus) {
+	globalEventBus = bus
+}
+
+// On registers an event handler on the global event bus
+func On(eventType EventType, handler EventHandler) {
+	GetGlobalEventBus().On(eventType, handler)
+}
+
+// Off removes all handlers for a specific event type from the global event bus
+func Off(eventType EventType) {
+	GetGlobalEventBus().Off(eventType)
+}
+
+// Emit publishes an event to the global event bus
+func Emit(ctx context.Context, event Event) error {
+	return GetGlobalEventBus().Emit(ctx, event)
+}
+
+// EmitAndWait publishes an event to the global event bus and waits for all handlers
+func EmitAndWait(ctx context.Context, event Event) error {
+	return GetGlobalEventBus().EmitAndWait(ctx, event)
+}
+
+// HasHandlers checks if there are any handlers registered for an event type
+func HasHandlers(eventType EventType) bool {
+	return GetGlobalEventBus().HasHandlers(eventType)
+}
+
+// Clear removes all event handlers from the global event bus
+func Clear() {
+	GetGlobalEventBus().Clear()
+}