112 lines
3.8 KiB
JavaScript
112 lines
3.8 KiB
JavaScript
require('dotenv').config();
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const express = require('express');
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const { Pool } = require('pg');
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const bodyParser = require('body-parser');
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const cors = require('cors');
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const path = require('path');
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const app = express();
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const port = process.env.PORT || 3000;
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app.use(cors());
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app.use(bodyParser.json());
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// Serve static files from the root directory
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app.use(express.static(path.join(__dirname, './')));
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const pool = new Pool({
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host: process.env.DB_HOST,
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port: process.env.DB_PORT,
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database: process.env.DB_NAME,
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user: process.env.DB_USER,
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password: process.env.DB_PASSWORD
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});
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// Test DB Connection
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pool.connect()
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.then(() => console.log('Connected to PostgreSQL successfully'))
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.catch(err => console.error('Connection error', err.stack));
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// Status-Endpunkt für Diagnose
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app.get('/api/status', async (req, res) => {
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try {
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const result = await pool.query('SELECT NOW()');
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res.json({
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status: 'online',
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database: 'connected',
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time: result.rows[0].now,
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schema: process.env.DB_SCHEMA || 'geodaten'
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});
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} catch (err) {
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res.status(500).json({ status: 'error', database: 'disconnected', error: err.message });
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}
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});
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// API to save turbines
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app.post('/api/wea', async (req, res) => {
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const { projekt_id, turbines } = req.body;
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const targetProject = projekt_id || 'BWSamern-Ohne';
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const schema = process.env.DB_SCHEMA || 'geodaten';
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console.log(`Empfange Save-Request für Projekt: ${targetProject} (${turbines?.length || 0} WEAs)`);
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const client = await pool.connect();
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try {
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await client.query('BEGIN');
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// 1. Bestehende WEAs für dieses Projekt löschen
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await client.query(
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`DELETE FROM ${schema}.wea_standorte WHERE projekt_id = $1`,
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[targetProject]
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);
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// 2. Neue WEAs einfügen
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if (turbines && turbines.length > 0) {
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for (const t of turbines) {
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await client.query(
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`INSERT INTO ${schema}.wea_standorte
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(projekt_id, wea_nummer, anlagentyp, nabenhoehe, rotordurchmesser, geom)
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VALUES ($1, $2, $3, $4, $5, ST_Transform(ST_SetSRID(ST_MakePoint($6, $7), 4326), 25832))`,
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[targetProject, t.nr, t.type, t.hh, t.rd, t.latlng.lng, t.latlng.lat]
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);
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}
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}
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await client.query('COMMIT');
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console.log(`Erfolgreich ${turbines?.length || 0} WEAs gespeichert.`);
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res.json({ message: `${turbines?.length || 0} WEAs erfolgreich in Datenbank gespeichert.` });
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} catch (err) {
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await client.query('ROLLBACK');
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console.error('Fehler beim Speichern in DB:', err);
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res.status(500).json({ error: 'Datenbankfehler beim Speichern', details: err.message });
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} finally {
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client.release();
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}
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});
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// API to load turbines
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app.get('/api/wea/:projekt_id', async (req, res) => {
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const { projekt_id } = req.params;
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try {
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const result = await pool.query(
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`SELECT wea_nummer as nr, anlagentyp as type, nabenhoehe as hh, rotordurchmesser as rd, ksf_drehung as ksfAngle,
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ST_X(ST_Transform(geom, 4326)) as lng, ST_Y(ST_Transform(geom, 4326)) as lat
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FROM geodaten.wea_standorte WHERE projekt_id = $1`,
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[projekt_id]
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);
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res.status(200).json(result.rows);
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} catch (e) {
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console.error('Error loading turbines', e);
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res.status(500).json({ error: e.message });
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}
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});
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// Catch-all route to serve index.html for any other request (optional, good for SPAs)
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app.get('*', (req, res) => {
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res.sendFile(path.join(__dirname, 'index.html'));
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});
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app.listen(port, '0.0.0.0', () => {
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console.log(`Server running at http://0.0.0.0:${port}`);
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});
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