feat: implement conversation mute and favorite functionality with corresponding notification suppression.

src/messages/messages.service.ts

@@ -722,4 +722,64 @@ export class MessagesService {
       return result._sum.userUnreadCount || 0;
     }
   }
+
+  /**
+   * Toggle mute status for a conversation
+   */
+  async toggleMute(conversationId: string, userId: string, muted: boolean) {
+    const conversation = await this.prisma.conversation.findUnique({
+      where: { id: conversationId },
+      include: { agentProfile: { select: { userId: true } } },
+    });
+
+    if (!conversation) throw new NotFoundException('Conversation not found');
+
+    const isUser = conversation.userId === userId;
+    const isAgent = conversation.agentProfile.userId === userId;
+    if (!isUser && !isAgent) throw new ForbiddenException('You are not part of this conversation');
+
+    const updated = await this.prisma.conversation.update({
+      where: { id: conversationId },
+      data: isUser ? { userMuted: muted } : { agentMuted: muted },
+    });
+
+    return { id: updated.id, muted: isUser ? updated.userMuted : updated.agentMuted };
+  }
+
+  /**
+   * Toggle favorite status for a conversation
+   */
+  async toggleFavorite(conversationId: string, userId: string, favorited: boolean) {
+    const conversation = await this.prisma.conversation.findUnique({
+      where: { id: conversationId },
+      include: { agentProfile: { select: { userId: true } } },
+    });
+
+    if (!conversation) throw new NotFoundException('Conversation not found');
+
+    const isUser = conversation.userId === userId;
+    const isAgent = conversation.agentProfile.userId === userId;
+    if (!isUser && !isAgent) throw new ForbiddenException('You are not part of this conversation');
+
+    const updated = await this.prisma.conversation.update({
+      where: { id: conversationId },
+      data: isUser ? { userFavorited: favorited } : { agentFavorited: favorited },
+    });
+
+    return { id: updated.id, favorited: isUser ? updated.userFavorited : updated.agentFavorited };
+  }
+
+  /**
+   * Check if a conversation is muted for a specific user
+   */
+  async isConversationMuted(conversationId: string, userId: string): Promise<boolean> {
+    const conversation = await this.prisma.conversation.findUnique({
+      where: { id: conversationId },
+      include: { agentProfile: { select: { userId: true } } },
+    });
+    if (!conversation) return false;
+
+    const isUser = conversation.userId === userId;
+    return isUser ? conversation.userMuted : conversation.agentMuted;
+  }
 }