fixed chat zustand bug

apps/dispatch/app/_store/chatStore.ts

@@ -0,0 +1,70 @@
+import { create } from "zustand";
+import { ChatMessage } from "@repo/db";
+import { socket } from "(dispatch)/socket";
+
+interface ChatStore {
+	ownId: null | string;
+	setOwnId: (id: string) => void;
+	chats: Record<string, { name: string; messages: ChatMessage[] }>;
+	sendMessage: (userId: string, message: string) => Promise<void>;
+	addChat: (userId: string, name: string) => void;
+	addMessage: (userId: string, message: ChatMessage) => void;
+}
+
+export const useChatStore = create<ChatStore>((set, get) => ({
+	ownId: null,
+	setOwnId: (id: string) => set({ ownId: id }),
+	chats: {},
+	sendMessage: (userId: string, message: string) => {
+		return new Promise((resolve, reject) => {
+			console.log("sendMessage", userId, message);
+			socket.emit(
+				"send-message",
+				{ userId, message },
+				({ error }: { error?: string }) => {
+					if (error) {
+						reject(error);
+					} else {
+						resolve();
+					}
+				},
+			);
+		});
+	},
+	addChat: (userId, name) => {
+		set((state) => ({
+			chats: {
+				...state.chats, // Bestehende Chats beibehalten
+				[userId]: { name, messages: [] }, // Neuen Chat hinzufügen
+			},
+		}));
+	},
+	addMessage: (userId: string, message: ChatMessage) => {
+		console.log("addMessage", userId, message);
+		set((state) => {
+			const user = state.chats[userId] || { name: userId, messages: [] };
+			const isSender = message.senderId === state.ownId;
+
+			return {
+				chats: {
+					...state.chats,
+					[userId]: {
+						...user,
+						name: isSender ? message.receiverName : message.senderName,
+						messages: [...user.messages, message], // Neuen Zustand erzeugen
+					},
+				},
+			};
+		});
+	},
+}));
+
+socket.on(
+	"chat-message",
+	({ userId, message }: { userId: string; message: ChatMessage }) => {
+		const store = useChatStore.getState();
+		console.log("chat-message", userId, message);
+		// Update the chat store with the new message
+		store.addMessage(userId, message);
+	},
+);