prepair redux

hooks/useLineData.js

@@ -1,8 +1,12 @@
 // /hooks/useLineData.js
 import { useEffect, useState } from "react";
 import { SERVER_URL } from "../config/urls";
+import { useDispatch, useSelector } from "react-redux";
+import { connectWebSocket, disconnectWebSocket } from "../redux/actions";
 
 const useLineData = (webserviceGisLinesStatusUrl, setLineStatusData) => {
+  const dispatch = useDispatch();
+  const messages = useSelector((state) => state.messages);
   const [lineColors, setLineColors] = useState({});
   const [tooltipContents, setTooltipContents] = useState({});
 

package-lock.json

@@ -23,9 +23,13 @@
         "postcss": "^8.4.40",
         "react": "^18.3.1",
         "react-dom": "^18.3.1",
+        "react-redux": "^9.1.2",
         "react-toastify": "^10.0.5",
         "recoil": "^0.7.7",
-        "tailwindcss": "^3.4.7"
+        "redux": "^5.0.1",
+        "redux-thunk": "^3.1.0",
+        "tailwindcss": "^3.4.7",
+        "ws": "^8.18.0"
       },
       "devDependencies": {
         "@babel/core": "^7.25.2",
@@ -3828,6 +3832,11 @@
       "integrity": "sha512-/Ad8+nIOV7Rl++6f1BdKxFSMgmoqEoYbHRpPcx3JEfv8VRsQe9Z4mCXeJBzxs7mbHY/XOZZuXlRNfhpVPbs6ZA==",
       "dev": true
     },
+    "node_modules/@types/use-sync-external-store": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/@types/use-sync-external-store/-/use-sync-external-store-0.0.3.tgz",
+      "integrity": "sha512-EwmlvuaxPNej9+T4v5AuBPJa2x2UOJVdjCtDHgcDqitUeOtjnJKJ+apYjVcAoBEMjKW1VVFGZLUb5+qqa09XFA=="
+    },
     "node_modules/@types/yargs": {
       "version": "17.0.32",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-17.0.32.tgz",
@@ -10580,6 +10589,28 @@
       "dev": true,
       "peer": true
     },
+    "node_modules/react-redux": {
+      "version": "9.1.2",
+      "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.1.2.tgz",
+      "integrity": "sha512-0OA4dhM1W48l3uzmv6B7TXPCGmokUU4p1M44DGN2/D9a1FjVPukVjER1PcPX97jIg6aUeLq1XJo1IpfbgULn0w==",
+      "dependencies": {
+        "@types/use-sync-external-store": "^0.0.3",
+        "use-sync-external-store": "^1.0.0"
+      },
+      "peerDependencies": {
+        "@types/react": "^18.2.25",
+        "react": "^18.0",
+        "redux": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "redux": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/react-toastify": {
       "version": "10.0.5",
       "resolved": "https://registry.npmjs.org/react-toastify/-/react-toastify-10.0.5.tgz",
@@ -10673,6 +10704,19 @@
         "node": ">=8"
       }
     },
+    "node_modules/redux": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/redux/-/redux-5.0.1.tgz",
+      "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w=="
+    },
+    "node_modules/redux-thunk": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/redux-thunk/-/redux-thunk-3.1.0.tgz",
+      "integrity": "sha512-NW2r5T6ksUKXCabzhL9z+h206HQw/NJkcLm1GPImRQ8IzfXwRGqjVhKJGauHirT0DAuyy6hjdnMZaRoAcy0Klw==",
+      "peerDependencies": {
+        "redux": "^5.0.0"
+      }
+    },
     "node_modules/regenerate": {
       "version": "1.4.2",
       "resolved": "https://registry.npmjs.org/regenerate/-/regenerate-1.4.2.tgz",
@@ -11818,6 +11862,14 @@
         "requires-port": "^1.0.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.2.2.tgz",
+      "integrity": "sha512-PElTlVMwpblvbNqQ82d2n6RjStvdSoNe9FG28kNfz3WiXilJm4DdNkEzRhCZuIDwY8U08WVihhGR5iRqAwfDiw==",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -12152,7 +12204,6 @@
       "version": "8.18.0",
       "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.0.tgz",
       "integrity": "sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw==",
-      "dev": true,
       "engines": {
         "node": ">=10.0.0"
       },

package.json

@@ -18,9 +18,13 @@
     "postcss": "^8.4.40",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
+    "react-redux": "^9.1.2",
     "react-toastify": "^10.0.5",
     "recoil": "^0.7.7",
-    "tailwindcss": "^3.4.7"
+    "redux": "^5.0.1",
+    "redux-thunk": "^3.1.0",
+    "tailwindcss": "^3.4.7",
+    "ws": "^8.18.0"
   },
   "scripts": {
     "dev": "next dev",

pages/_app.js

@@ -1,13 +1,17 @@
 // Pfad: pages/_app.js
 import React from "react";
 import { RecoilRoot } from "recoil";
+import { Provider } from "react-redux";
+import store from "../redux/store";
 import "../styles/global.css";
 
 function MyApp({ Component, pageProps }) {
   return (
-    <RecoilRoot>
-      <Component {...pageProps} />
-    </RecoilRoot>
+    <Provider store={store}>
+      <RecoilRoot>
+        <Component {...pageProps} />
+      </RecoilRoot>
+    </Provider>
   );
 }
 

pages/api/websocket.js

@@ -0,0 +1,27 @@
+// /pages/api/websocket.js
+import { Server } from "ws";
+
+export default function handler(req, res) {
+  if (!res.socket.server.ws) {
+    console.log("Starting WebSocket server");
+    const wss = new Server({ server: res.socket.server });
+
+    wss.on("connection", (ws) => {
+      console.log("New WebSocket connection");
+
+      ws.on("message", (message) => {
+        console.log("Received:", message);
+        // Beispielnachricht an den Client senden
+        ws.send(JSON.stringify({ message: "Hallo von WebSocket-Server" }));
+      });
+
+      // Schließe die Verbindung
+      ws.on("close", () => {
+        console.log("WebSocket connection closed");
+      });
+    });
+
+    res.socket.server.ws = wss;
+  }
+  res.end();
+}

redux/actions.js

@@ -0,0 +1,9 @@
+// /redux/actions.js
+export const connectWebSocket = (url) => ({
+  type: "WS_CONNECT",
+  payload: { url },
+});
+
+export const disconnectWebSocket = () => ({
+  type: "WS_DISCONNECT",
+});

redux/reducer.js

@@ -0,0 +1,18 @@
+// /redux/reducer.js
+const initialState = {
+  messages: [],
+};
+
+const websocketReducer = (state = initialState, action) => {
+  switch (action.type) {
+    case "WS_MESSAGE_RECEIVED":
+      return {
+        ...state,
+        messages: [...state.messages, action.payload],
+      };
+    default:
+      return state;
+  }
+};
+
+export default websocketReducer;

redux/store.js

@@ -0,0 +1,8 @@
+// /redux/store.js
+import { createStore, applyMiddleware } from "redux";
+import websocketMiddleware from "./websocketMiddleware";
+import websocketReducer from "./reducer";
+
+const store = createStore(websocketReducer, applyMiddleware(websocketMiddleware));
+
+export default store;

redux/websocketMiddleware.js

@@ -0,0 +1,29 @@
+// /redux/websocketMiddleware.js
+const websocketMiddleware = () => {
+  let socket;
+
+  return ({ dispatch }) =>
+    (next) =>
+    (action) => {
+      if (action.type === "WS_CONNECT") {
+        socket = new WebSocket(action.payload.url);
+
+        socket.onmessage = (event) => {
+          const data = JSON.parse(event.data);
+          dispatch({ type: "WS_MESSAGE_RECEIVED", payload: data });
+        };
+
+        socket.onclose = () => {
+          dispatch({ type: "WS_DISCONNECTED" });
+        };
+      }
+
+      if (action.type === "WS_DISCONNECT" && socket) {
+        socket.close();
+      }
+
+      return next(action);
+    };
+};
+
+export default websocketMiddleware;