feat: 重构事件处理，添加默认通道和发布逻辑，移除不必要的提供者

templates/project/providers/event/config.go.tpl

@@ -14,7 +14,7 @@ const DefaultPrefix = "Events"
 
 func DefaultProvider() container.ProviderContainer {
 	return container.ProviderContainer{
-		Provider: Provide,
+		Provider: ProvideChannel,
 		Options: []opt.Option{
 			opt.Prefix(DefaultPrefix),
 		},
@@ -22,15 +22,30 @@ func DefaultProvider() container.ProviderContainer {
 }
 
 type Config struct {
-	ConsumerGroup string
+	Sql   *ConfigSql
+	Kafka *ConfigKafka
+	Redis *ConfigRedis
+}
 
-	Brokers []string
+type ConfigSql struct {
+	ConsumerGroup string
+}
+
+type ConfigRedis struct {
+	ConsumerGroup string
+	Streams       []string
+}
+
+type ConfigKafka struct {
+	ConsumerGroup string
+	Brokers       []string
 }
 
 type PubSub struct {
-	Publisher  message.Publisher
-	Subscriber message.Subscriber
-	Router     *message.Router
+	Router *message.Router
+
+	publishers  map[contracts.Channel]message.Publisher
+	subscribers map[contracts.Channel]message.Subscriber
 }
 
 func (ps *PubSub) Serve(ctx context.Context) error {
@@ -40,15 +55,6 @@ func (ps *PubSub) Serve(ctx context.Context) error {
 	return nil
 }
 
-func (ps *PubSub) Handle(
-	handlerName string,
-	consumerTopic string,
-	publisherTopic string,
-	handler message.HandlerFunc,
-) {
-	ps.Router.AddHandler(handlerName, consumerTopic, ps.Subscriber, publisherTopic, ps.Publisher, handler)
-}
-
 // publish
 func (ps *PubSub) Publish(e contracts.EventPublisher) error {
 	if e == nil {
@@ -61,5 +67,33 @@ func (ps *PubSub) Publish(e contracts.EventPublisher) error {
 	}
 
 	msg := message.NewMessage(watermill.NewUUID(), payload)
-	return ps.Publisher.Publish(e.Topic(), msg)
+	return ps.getPublisher(e.Channel()).Publish(e.Topic(), msg)
+}
+
+// getPublisher returns the publisher for the specified channel.
+func (ps *PubSub) getPublisher(channel contracts.Channel) message.Publisher {
+	if pub, ok := ps.publishers[channel]; ok {
+		return pub
+	}
+	return ps.publishers[Go]
+}
+
+func (ps *PubSub) getSubscriber(channel contracts.Channel) message.Subscriber {
+	if sub, ok := ps.subscribers[channel]; ok {
+		return sub
+	}
+	return ps.subscribers[Go]
+}
+
+func (ps *PubSub) Handle(handlerName string, sub contracts.EventHandler) {
+	publishToCh, publishToTopic := sub.PublishTo()
+
+	ps.Router.AddHandler(
+		handlerName,
+		sub.Topic(),
+		ps.getSubscriber(sub.Channel()),
+		publishToTopic,
+		ps.getPublisher(publishToCh),
+		sub.Handler,
+	)
 }