feat(payment): add chat support discounts and gratitude

(cherry picked from commit ef9b79bc83)

src/core/net/chat-websocket.ts

@@ -37,6 +37,13 @@ export interface PaywallStatusPayload {
   reason: string | null;
 }
 
+export interface CommercialMessagePayload {
+  messageId: string;
+  message: string;
+  characterId: string;
+  createdAt: string;
+}
+
 export class ChatWebSocket {
   private ws: WebSocket | null = null;
   private reconnectTimer: ReturnType<typeof setTimeout> | null = null;
@@ -52,6 +59,7 @@ export class ChatWebSocket {
   onCommercialAction: ((action: CommercialAction) => void) | null = null;
   onChatAction: ((action: ChatAction) => void) | null = null;
   onPaymentGuidance: ((guidance: PaymentGuidance) => void) | null = null;
+  onCommercialMessage: ((message: CommercialMessagePayload) => void) | null = null;
   onError: ((errorMessage: string) => void) | null = null;
 
   constructor(
@@ -149,6 +157,10 @@ export class ChatWebSocket {
       done?: boolean;
       audioUrl?: string;
       error?: string;
+      messageId?: string;
+      message?: string;
+      characterId?: string;
+      createdAt?: string;
       data?: Record<string, unknown> & {
         image?: {
           type?: string | null;
@@ -163,6 +175,10 @@ export class ChatWebSocket {
         ruleId?: string;
         kind?: string;
         orderId?: string | null;
+        messageId?: string;
+        message?: string;
+        characterId?: string;
+        createdAt?: string;
       };
     };
     try {
@@ -217,6 +233,25 @@ export class ChatWebSocket {
         if (guidance.success) this.onPaymentGuidance?.(guidance.data);
         break;
       }
+      case "commercial_message": {
+        const commercialMessage = payload.data?.messageId
+          ? payload.data
+          : payload;
+        if (
+          commercialMessage?.messageId &&
+          commercialMessage.message &&
+          commercialMessage.characterId &&
+          commercialMessage.createdAt
+        ) {
+          this.onCommercialMessage?.({
+            messageId: commercialMessage.messageId,
+            message: commercialMessage.message,
+            characterId: commercialMessage.characterId,
+            createdAt: commercialMessage.createdAt,
+          });
+        }
+        break;
+      }
       case "error":
         this.onError?.(payload.error ?? "Unknown error");
         break;