Urlaub 2026: Vergleich, Karte, 3 Empfehlungen, Sterne-Voting (Node+Voting-API)

server.js

@@ -0,0 +1,93 @@
+// Urlaubsvergleich 2026 – Familie Heidrich
+// Zero-dependency Node server: serves static page + voting API with file persistence.
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = process.env.PORT || 80;
+const PUBLIC = path.join(__dirname, 'public');
+
+// Persistence: prefer mounted /data volume, fall back to local ./data
+function pickDataDir() {
+  const candidates = [process.env.DATA_DIR, '/data', path.join(__dirname, 'data')].filter(Boolean);
+  for (const dir of candidates) {
+    try { fs.mkdirSync(dir, { recursive: true }); fs.accessSync(dir, fs.constants.W_OK); return dir; }
+    catch (e) { /* try next */ }
+  }
+  return __dirname;
+}
+const DATA_DIR = pickDataDir();
+const DATA_FILE = path.join(DATA_DIR, 'votes.json');
+
+const VOTERS = ['till', 'lea', 'astrid'];
+
+function loadState() {
+  try { return JSON.parse(fs.readFileSync(DATA_FILE, 'utf8')); }
+  catch (e) { return { votes: {} }; }
+}
+function saveState(state) {
+  try { fs.writeFileSync(DATA_FILE, JSON.stringify(state)); } catch (e) { console.error('save failed', e); }
+}
+let state = loadState();
+
+const MIME = { '.html': 'text/html; charset=utf-8', '.js': 'text/javascript; charset=utf-8',
+  '.css': 'text/css; charset=utf-8', '.json': 'application/json', '.svg': 'image/svg+xml',
+  '.png': 'image/png', '.jpg': 'image/jpeg', '.ico': 'image/x-icon', '.webmanifest': 'application/manifest+json' };
+
+function sendJSON(res, code, obj) {
+  const body = JSON.stringify(obj);
+  res.writeHead(code, { 'Content-Type': 'application/json', 'Cache-Control': 'no-store' });
+  res.end(body);
+}
+
+function readBody(req) {
+  return new Promise((resolve) => {
+    let b = ''; req.on('data', c => { b += c; if (b.length > 1e5) req.destroy(); });
+    req.on('end', () => { try { resolve(JSON.parse(b || '{}')); } catch (e) { resolve({}); } });
+  });
+}
+
+const server = http.createServer(async (req, res) => {
+  const url = new URL(req.url, 'http://x');
+  const p = url.pathname;
+
+  // ---- API ----
+  if (p === '/api/state' && req.method === 'GET') {
+    return sendJSON(res, 200, { votes: state.votes, voters: VOTERS });
+  }
+  if (p === '/api/vote' && req.method === 'POST') {
+    const { voter, option, stars } = await readBody(req);
+    if (!VOTERS.includes(voter) || !option || typeof stars !== 'number' || stars < 0 || stars > 5) {
+      return sendJSON(res, 400, { error: 'invalid' });
+    }
+    state.votes[voter] = state.votes[voter] || {};
+    if (stars === 0) { delete state.votes[voter][option]; }
+    else { state.votes[voter][option] = Math.round(stars); }
+    saveState(state);
+    return sendJSON(res, 200, { votes: state.votes, voters: VOTERS });
+  }
+  if (p === '/api/reset' && req.method === 'POST') {
+    state = { votes: {} }; saveState(state);
+    return sendJSON(res, 200, { votes: state.votes, voters: VOTERS });
+  }
+  if (p === '/health') { return sendJSON(res, 200, { ok: true }); }
+
+  // ---- Static ----
+  let file = p === '/' ? '/index.html' : decodeURIComponent(p);
+  const full = path.join(PUBLIC, path.normalize(file).replace(/^(\.\.[\/\\])+/, ''));
+  if (!full.startsWith(PUBLIC)) { res.writeHead(403); return res.end('forbidden'); }
+  fs.readFile(full, (err, data) => {
+    if (err) {
+      // SPA-ish fallback to index
+      return fs.readFile(path.join(PUBLIC, 'index.html'), (e2, d2) => {
+        if (e2) { res.writeHead(404); return res.end('not found'); }
+        res.writeHead(200, { 'Content-Type': MIME['.html'] }); res.end(d2);
+      });
+    }
+    const ext = path.extname(full).toLowerCase();
+    res.writeHead(200, { 'Content-Type': MIME[ext] || 'application/octet-stream' });
+    res.end(data);
+  });
+});
+
+server.listen(PORT, () => console.log('Reise-Vergleich läuft auf Port ' + PORT + ' | Daten: ' + DATA_FILE));