feat: Add admin support chat page and service for managing user conversations.

src/services/index.ts

@@ -84,3 +84,7 @@ export type {
   FaqItem,
   FaqContent,
 } from './cms.service';
+
+// Support Chat Service
+export { supportChatService } from './support-chat.service';
+export type { SupportChat, SupportMessage, MessagesResponse } from './support-chat.service';

src/services/support-chat.service.ts

@@ -0,0 +1,64 @@
+import api, { ApiResponse } from './api';
+
+interface SupportChat {
+  id: string;
+  userId: string;
+  status: 'OPEN' | 'CLOSED';
+  lastMessageAt: string | null;
+  lastMessageText: string | null;
+  userUnreadCount: number;
+  adminUnreadCount: number;
+  createdAt: string;
+  updatedAt: string;
+  user: {
+    id: string;
+    email: string;
+    role: string;
+    userProfile: { firstName: string | null; lastName: string | null; avatar: string | null } | null;
+    agentProfile: { firstName: string | null; lastName: string | null; avatar: string | null } | null;
+  };
+}
+
+interface SupportMessage {
+  id: string;
+  chatId: string;
+  senderId: string;
+  senderRole: string;
+  content: string;
+  createdAt: string;
+}
+
+interface MessagesResponse {
+  messages: SupportMessage[];
+  pagination: { page: number; limit: number; total: number; pages: number };
+}
+
+class SupportChatService {
+  async getAllChats(status?: string): Promise<SupportChat[]> {
+    const params = status ? { status } : {};
+    const response = await api.get<ApiResponse<SupportChat[]>>('/support-chat/admin/all', { params });
+    return response.data.data;
+  }
+
+  async getMessages(chatId: string, page = 1): Promise<MessagesResponse> {
+    const response = await api.get<ApiResponse<MessagesResponse>>(`/support-chat/${chatId}/messages`, { params: { page, limit: 50 } });
+    return response.data.data;
+  }
+
+  async sendMessage(chatId: string, content: string): Promise<SupportMessage> {
+    const response = await api.post<ApiResponse<SupportMessage>>(`/support-chat/${chatId}/messages`, { content });
+    return response.data.data;
+  }
+
+  async markAsRead(chatId: string): Promise<void> {
+    await api.patch(`/support-chat/${chatId}/read`);
+  }
+
+  async closeChat(chatId: string): Promise<SupportChat> {
+    const response = await api.patch<ApiResponse<SupportChat>>(`/support-chat/admin/${chatId}/close`);
+    return response.data.data;
+  }
+}
+
+export const supportChatService = new SupportChatService();
+export type { SupportChat, SupportMessage, MessagesResponse };