add broadcasts to api clie

nt

generator.go

@@ -15,9 +15,9 @@ var backendClient string
 
 var errorType = reflect.TypeOf((*error)(nil)).Elem()
 
-func GenClient(api any, outPutPath string) error {
+func GenClient(api any, broadcasts any, outPutPath string) error {
 
-	ts, err := GenerateTS(reflect.TypeOf(api), "RPCClient")
+	ts, err := GenerateTS(reflect.TypeOf(api), reflect.TypeOf(broadcasts), "RPCClient")
 	if err != nil {
 		return err
 	}
@@ -27,20 +27,39 @@ func GenClient(api any, outPutPath string) error {
 	return nil
 }
 
-func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
+func GenerateTS(apiType reflect.Type, broadcastType reflect.Type, clientName string) (string, error) {
 	var b strings.Builder
-
-	b.WriteString("// --- AUTO-GENERATED ---\n")
-	b.WriteString("// Generated by generator. Do not edit by hand (unless you know what you do).\n")
-	b.WriteString("// Types\n\n")
-
 	structs := map[string]reflect.Type{}
 
+	b.WriteString("export interface BroadcastEvents {\n")
+
+	if broadcastType != nil {
+		bt := broadcastType
+		if bt.Kind() == reflect.Ptr {
+			bt = bt.Elem()
+		}
+
+		if bt.Kind() == reflect.Struct {
+			for i := 0; i < bt.NumField(); i++ {
+				f := bt.Field(i)
+				topicName := f.Name
+				tag := f.Tag.Get("json")
+				if tag != "" {
+					topicName = strings.Split(tag, ",")[0]
+				}
+				collectStructs(f.Type, structs)
+				b.WriteString(fmt.Sprintf("  '%s': %s;\n", topicName, goTypeToTS(f.Type)))
+			}
+		}
+	}
+	b.WriteString("}\n\n")
+
+	b.WriteString("export type BroadcastTopic = keyof BroadcastEvents;\n\n")
+
 	for method := range apiType.Methods() {
 		i := -1
 		for param := range method.Type.Ins() {
 			i++
-			//skip self
 			if i == 0 {
 				continue
 			}
@@ -48,14 +67,11 @@ func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
 		}
 
 		outParams := method.Type.NumOut()
-
 		unsupportedMethod := "not supported, allowed layout are \nfunc() (error) \nfunc() (struct, error), \nfunc(x...) (struct, error)"
-		//func()
+
 		if outParams == 0 {
 			return "", errors.New(method.Name + unsupportedMethod)
 		}
-
-		//func() (err)
 		if outParams == 1 {
 			if method.Type.Out(0).Implements(errorType) {
 				collectStructs(method.Type.Out(0), structs)
@@ -63,23 +79,18 @@ func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
 				return "", errors.New(method.Name + unsupportedMethod)
 			}
 		}
-
-		//func() (struct, err)
 		if outParams > 1 && method.Type.Out(1).Implements(errorType) {
 			collectStructs(method.Type.Out(0), structs)
 		}
-
 		if outParams > 2 {
 			return "", errors.New(method.Name + unsupportedMethod)
 		}
-
 	}
 
 	names := make([]string, 0, len(structs))
 	for n := range structs {
 		names = append(names, n)
 	}
-
 	slices.Sort(names)
 
 	for _, name := range names {
@@ -106,7 +117,6 @@ func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
 		b.WriteString("}\n\n")
 	}
 
-	b.WriteString("// Generic RPC method result\n")
 	b.WriteString("export type RPCResult<T> = { data: T; error?: any };\n\n")
 
 	b.WriteString(fmt.Sprintf("export interface %s {\n", clientName))
@@ -141,7 +151,7 @@ func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
 		if m.Type.NumOut() > 0 {
 			resType = goTypeToTS(m.Type.Out(0))
 			if m.Type.Out(0).Implements(errorType) {
-				resType = "any" // It's just a func() error
+				resType = "any"
 			}
 		}
 
@@ -168,7 +178,6 @@ func GenerateTS(apiType reflect.Type, clientName string) (string, error) {
 
 	return b.String(), nil
 }
-
 func collectStructs(t reflect.Type, m map[string]reflect.Type) {
 	if t == nil {
 		return