Archiv: Geteilt-von-mir Tab + 3D-Datei Downloads für Owner und Empfänger

backend/src/tools/kalkulator3d/routes.js

@@ -31,12 +31,81 @@ router.get('/', authenticate, (req, res) => {
     ORDER BY c.created_at DESC
   `).all(uid);
 
+  // Geteilt von mir
+  const sharedByMe = db.prepare(`
+    SELECT c.*, u.username as shared_with_name, cs.created_at as shared_at
+    FROM calculations c
+    JOIN calculation_shares cs ON cs.calc_id = c.id
+    JOIN users u ON u.id = cs.shared_with
+    WHERE c.user_id = ?
+    ORDER BY c.name ASC
+  `).all(uid);
+
+  // has_files auch für shared items prüfen (anhand owner's Ordner)
+  const sharedWithFiles = shared.map(i => {
+    const ownerBase = db.prepare(
+      "SELECT id FROM folders WHERE user_id=? AND name='3D-Modelle' AND parent_id IS NULL"
+    ).get(i.user_id);
+    let has_files = false;
+    if (ownerBase) {
+      const sub = db.prepare(
+        'SELECT id FROM folders WHERE user_id=? AND name=? AND parent_id=?'
+      ).get(i.user_id, i.name, ownerBase.id);
+      if (sub) {
+        const cnt = db.prepare('SELECT COUNT(*) AS c FROM files WHERE folder_id=?').get(sub.id);
+        has_files = cnt.c > 0;
+      }
+    }
+    return { ...i, has_files };
+  });
+
   res.json({
-    own:    items.map(i => ({ ...i, has_files: !!filesMap[i.name] })),
-    shared: shared,
+    own:        items.map(i => ({ ...i, has_files: !!filesMap[i.name] })),
+    shared:     sharedWithFiles,
+    sharedByMe: sharedByMe.map(i => ({ ...i, has_files: !!filesMap[i.name] })),
   });
 });
 
+// Dateien eines Modells abrufen (für Owner + shared users)
+router.get('/:id/files', authenticate, (req, res) => {
+  const uid  = req.user.id;
+  const calc = db.prepare('SELECT * FROM calculations WHERE id=?').get(req.params.id);
+  if (!calc) return res.status(404).json({ error: 'Nicht gefunden' });
+  const isOwner  = calc.user_id === uid;
+  const isShared = db.prepare('SELECT id FROM calculation_shares WHERE calc_id=? AND shared_with=?').get(calc.id, uid);
+  if (!isOwner && !isShared) return res.status(403).json({ error: 'Kein Zugriff' });
+
+  const baseFolder = db.prepare(
+    "SELECT id FROM folders WHERE user_id=? AND name='3D-Modelle' AND parent_id IS NULL"
+  ).get(calc.user_id);
+  if (!baseFolder) return res.json([]);
+  const sub = db.prepare('SELECT id FROM folders WHERE user_id=? AND name=? AND parent_id=?')
+    .get(calc.user_id, calc.name, baseFolder.id);
+  if (!sub) return res.json([]);
+  res.json(db.prepare('SELECT * FROM files WHERE folder_id=? ORDER BY created_at ASC').all(sub.id));
+});
+
+// Einzelne Datei herunterladen (Owner + shared users)
+router.get('/:id/files/:fileId/download', authenticate, (req, res) => {
+  const uid  = req.user.id;
+  const calc = db.prepare('SELECT * FROM calculations WHERE id=?').get(req.params.id);
+  if (!calc) return res.status(404).json({ error: 'Nicht gefunden' });
+  const isOwner  = calc.user_id === uid;
+  const isShared = db.prepare('SELECT id FROM calculation_shares WHERE calc_id=? AND shared_with=?').get(calc.id, uid);
+  if (!isOwner && !isShared) return res.status(403).json({ error: 'Kein Zugriff' });
+
+  const file = db.prepare('SELECT * FROM files WHERE id=?').get(req.params.fileId);
+  if (!file) return res.status(404).json({ error: 'Datei nicht gefunden' });
+
+  const path = require('path');
+  const fs   = require('fs');
+  const UPLOAD_DIR = process.env.UPLOAD_DIR || '/data/uploads';
+  const fp = path.join(UPLOAD_DIR, file.filename);
+  if (!fs.existsSync(fp)) return res.status(404).json({ error: 'Datei fehlt' });
+  res.download(fp, file.originalname);
+});
+
+
 // Share-Management
 router.get('/:id/shares', authenticate, (req, res) => {
   const calc = db.prepare('SELECT * FROM calculations WHERE id=? AND user_id=?').get(req.params.id, req.user.id);