From 2b1eefe2296744e988b365f75f07a8399dae54f4 Mon Sep 17 00:00:00 2001
From: Johannes Baumeister <jba@enwelo.de>
Date: Tue, 28 Apr 2026 12:27:04 +0200
Subject: [PATCH] chore: migrate to node.js backend to support database saving
 and serve static files

---
 Dockerfile                     |  2 +-
 app.js                         |  2 +-
 package.json                   | 15 +++++++++++++++
 backend/server.js => server.js | 19 ++++++++++++-------
 4 files changed, 29 insertions(+), 9 deletions(-)
 create mode 100644 package.json
 rename backend/server.js => server.js (84%)

diff --git a/Dockerfile b/Dockerfile
index cc36a2c..63b3cf3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,4 +10,4 @@ COPY . .
 
 # Der Server läuft auf Port 3000
 EXPOSE 3000
-CMD ["node", "server.js"]
\ No newline at end of file
+CMD ["node", "server.js"]
diff --git a/app.js b/app.js
index b905b9b..fb72b15 100644
--- a/app.js
+++ b/app.js
@@ -1434,7 +1434,7 @@ document.addEventListener('DOMContentLoaded', async () => {
             }));
 
             try {
-                const response = await fetch('http://localhost:3000/api/wea', {
+                const response = await fetch('/api/wea', {
                     method: 'POST',
                     headers: { 'Content-Type': 'application/json' },
                     body: JSON.stringify({ projekt_id, turbines: turbineData })
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..64326c4
--- /dev/null
+++ b/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "bwsamern-ohne-planungstool",
+  "version": "1.0.0",
+  "main": "server.js",
+  "dependencies": {
+    "body-parser": "^1.20.2",
+    "cors": "^2.8.5",
+    "dotenv": "^16.4.5",
+    "express": "^4.19.2",
+    "pg": "^8.11.5"
+  },
+  "scripts": {
+    "start": "node server.js"
+  }
+}
diff --git a/backend/server.js b/server.js
similarity index 84%
rename from backend/server.js
rename to server.js
index 84db9cc..f7a026d 100644
--- a/backend/server.js
+++ b/server.js
@@ -3,6 +3,7 @@ const express = require('express');
 const { Pool } = require('pg');
 const bodyParser = require('body-parser');
 const cors = require('cors');
+const path = require('path');
 
 const app = express();
 const port = process.env.PORT || 3000;
@@ -10,6 +11,9 @@ const port = process.env.PORT || 3000;
 app.use(cors());
 app.use(bodyParser.json());
 
+// Serve static files from the root directory
+app.use(express.static(path.join(__dirname, './')));
+
 const pool = new Pool({
   host: process.env.DB_HOST,
   port: process.env.DB_PORT,
@@ -20,7 +24,7 @@ const pool = new Pool({
 
 // Test DB Connection
 pool.connect()
-  .then(() => console.log('Connected to PostgreSQL (enwelo_db) successfully'))
+  .then(() => console.log('Connected to PostgreSQL successfully'))
   .catch(err => console.error('Connection error', err.stack));
 
 // API to save turbines
@@ -32,13 +36,9 @@ app.post('/api/wea', async (req, res) => {
         await client.query('BEGIN');
         
         // Delete existing turbines for this project before saving new state
-        // (This ensures we always have the latest state on 'Save')
         await client.query('DELETE FROM geodaten.wea_standorte WHERE projekt_id = $1', [projekt_id]);
         
         for(let t of turbines) {
-            // Mapping frontend data to geodaten.wea_standorte columns:
-            // wea_nummer, hersteller, anlagentyp, nabenhoehe, rotordurchmesser, ksf_drehung, projekt_id, geom
-            
             await client.query(
               `INSERT INTO geodaten.wea_standorte (
                 wea_nummer, hersteller, anlagentyp, nabenhoehe, rotordurchmesser, ksf_drehung, projekt_id, geom
@@ -85,6 +85,11 @@ app.get('/api/wea/:projekt_id', async (req, res) => {
     }
 });
 
-app.listen(port, () => {
-    console.log(`Backend server listening at http://localhost:${port}`);
+// Catch-all route to serve index.html for any other request (optional, good for SPAs)
+app.get('*', (req, res) => {
+  res.sendFile(path.join(__dirname, 'index.html'));
+});
+
+app.listen(port, '0.0.0.0', () => {
+    console.log(`Server running at http://0.0.0.0:${port}`);
 });