Code-Schnipsel: neue Funktion unter Werkzeuge

2026-05-29 13:16:39 +02:00
parent d755dcf68a
commit 449a0aa2f7
6 changed files with 712 additions and 2 deletions
--- a/backend/src/db.js
+++ b/backend/src/db.js
@@ -406,4 +406,40 @@ if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='cal
  `);
 }

+// ── Code-Schnipsel ────────────────────────────────────────────────────────────
+if (!db.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='snippets'").get()) {
+  db.exec(`
+    CREATE TABLE snippets (
+      id          INTEGER PRIMARY KEY AUTOINCREMENT,
+      user_id     INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      title       TEXT NOT NULL,
+      code        TEXT NOT NULL DEFAULT '',
+      language    TEXT NOT NULL DEFAULT 'text',
+      description TEXT NOT NULL DEFAULT '',
+      created_at  DATETIME DEFAULT NULL,
+      updated_at  DATETIME DEFAULT NULL
+    );
+    CREATE TABLE snippet_tags (
+      snippet_id  INTEGER NOT NULL REFERENCES snippets(id) ON DELETE CASCADE,
+      tag         TEXT NOT NULL,
+      PRIMARY KEY (snippet_id, tag)
+    );
+    CREATE TABLE snippet_history (
+      id          INTEGER PRIMARY KEY AUTOINCREMENT,
+      snippet_id  INTEGER NOT NULL REFERENCES snippets(id) ON DELETE CASCADE,
+      code        TEXT NOT NULL,
+      language    TEXT NOT NULL DEFAULT 'text',
+      saved_at    DATETIME DEFAULT NULL
+    );
+    CREATE TABLE snippet_shares (
+      id          INTEGER PRIMARY KEY AUTOINCREMENT,
+      snippet_id  INTEGER NOT NULL REFERENCES snippets(id) ON DELETE CASCADE,
+      shared_by   INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      shared_with INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+      created_at  DATETIME DEFAULT NULL,
+      UNIQUE(snippet_id, shared_with)
+    )
+  `);
+}
+
 module.exports = db;
--- a/backend/src/index.js
+++ b/backend/src/index.js
@@ -66,7 +66,8 @@ fs.readdirSync(toolsDir, { withFileTypes: true })
    }
  });

-// ── Frontend ──────────────────────────────────────────────────────────────────
+app.use('/api/tools/snippets', require('./tools/snippets/routes'));
+
 const PUBLIC = path.join(__dirname, '../public');

 app.get('/manifest.json', (_req, res) => {
--- a/backend/src/tools/snippets/routes.js
+++ b/backend/src/tools/snippets/routes.js
@@ -0,0 +1,126 @@
+const express = require('express');
+const db      = require('../../db');
+const { authenticate } = require('../../middleware/auth');
+const router  = express.Router();
+
+const uid = req => req.user.id;
+
+const getTags = id => db.prepare('SELECT tag FROM snippet_tags WHERE snippet_id=?').all(id).map(r=>r.tag);
+
+const enrich = (s) => ({ ...s, tags: getTags(s.id) });
+
+// ── Alle Snippets (eigene + geteilt) ────────────────────────────────────────
+router.get('/', authenticate, (req, res) => {
+  const me = uid(req);
+  const own = db.prepare(`
+    SELECT s.*, u.username as owner
+    FROM snippets s JOIN users u ON u.id=s.user_id
+    WHERE s.user_id=? ORDER BY s.updated_at DESC, s.created_at DESC
+  `).all(me).map(enrich);
+
+  const shared = db.prepare(`
+    SELECT s.*, u.username as owner, 1 as is_shared
+    FROM snippets s
+    JOIN snippet_shares sh ON sh.snippet_id=s.id
+    JOIN users u ON u.id=s.user_id
+    WHERE sh.shared_with=?
+    ORDER BY s.updated_at DESC
+  `).all(me).map(enrich);
+
+  res.json({ own, shared });
+});
+
+// ── Einzelnes Snippet ────────────────────────────────────────────────────────
+router.get('/:id', authenticate, (req, res) => {
+  const s = db.prepare('SELECT s.*, u.username as owner FROM snippets s JOIN users u ON u.id=s.user_id WHERE s.id=?').get(req.params.id);
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  const isOwner  = s.user_id === uid(req);
+  const isShared = db.prepare('SELECT id FROM snippet_shares WHERE snippet_id=? AND shared_with=?').get(s.id, uid(req));
+  if (!isOwner && !isShared) return res.status(403).json({ error: 'Kein Zugriff' });
+  res.json(enrich(s));
+});
+
+// ── History ──────────────────────────────────────────────────────────────────
+router.get('/:id/history', authenticate, (req, res) => {
+  const s = db.prepare('SELECT * FROM snippets WHERE id=?').get(req.params.id);
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  const isOwner  = s.user_id === uid(req);
+  const isShared = db.prepare('SELECT id FROM snippet_shares WHERE snippet_id=? AND shared_with=?').get(s.id, uid(req));
+  if (!isOwner && !isShared) return res.status(403).json({ error: 'Kein Zugriff' });
+  res.json(db.prepare('SELECT * FROM snippet_history WHERE snippet_id=? ORDER BY saved_at DESC').all(s.id));
+});
+
+// ── Erstellen ────────────────────────────────────────────────────────────────
+router.post('/', authenticate, (req, res) => {
+  const { title, code='', language='text', description='', tags=[] } = req.body;
+  if (!title?.trim()) return res.status(400).json({ error: 'Titel erforderlich' });
+  const r = db.prepare(`
+    INSERT INTO snippets (user_id, title, code, language, description, created_at, updated_at)
+    VALUES (?,?,?,?,?,datetime('now','localtime'),datetime('now','localtime'))
+  `).run(uid(req), title.trim(), code, language, description);
+  const id = r.lastInsertRowid;
+  const insertTag = db.prepare('INSERT OR IGNORE INTO snippet_tags (snippet_id, tag) VALUES (?,?)');
+  db.transaction(()=>{ tags.forEach(t => insertTag.run(id, t)); })();
+  res.json(enrich(db.prepare('SELECT s.*, u.username as owner FROM snippets s JOIN users u ON u.id=s.user_id WHERE s.id=?').get(id)));
+});
+
+// ── Aktualisieren ────────────────────────────────────────────────────────────
+router.put('/:id', authenticate, (req, res) => {
+  const s = db.prepare('SELECT * FROM snippets WHERE id=? AND user_id=?').get(req.params.id, uid(req));
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  const { title, code, language, description, tags } = req.body;
+
+  // History-Eintrag wenn Code geändert
+  if (code !== undefined && code !== s.code) {
+    db.prepare(`INSERT INTO snippet_history (snippet_id, code, language, saved_at) VALUES (?,?,?,datetime('now','localtime'))`)
+      .run(s.id, s.code, s.language);
+  }
+
+  db.prepare(`UPDATE snippets SET title=?,code=?,language=?,description=?,updated_at=datetime('now','localtime') WHERE id=?`)
+    .run(title??s.title, code??s.code, language??s.language, description??s.description, s.id);
+
+  if (Array.isArray(tags)) {
+    db.prepare('DELETE FROM snippet_tags WHERE snippet_id=?').run(s.id);
+    const ins = db.prepare('INSERT OR IGNORE INTO snippet_tags (snippet_id, tag) VALUES (?,?)');
+    db.transaction(()=>{ tags.forEach(t => ins.run(s.id, t)); })();
+  }
+
+  res.json(enrich(db.prepare('SELECT s.*, u.username as owner FROM snippets s JOIN users u ON u.id=s.user_id WHERE s.id=?').get(s.id)));
+});
+
+// ── Löschen ──────────────────────────────────────────────────────────────────
+router.delete('/:id', authenticate, (req, res) => {
+  const r = db.prepare('DELETE FROM snippets WHERE id=? AND user_id=?').run(req.params.id, uid(req));
+  if (!r.changes) return res.status(404).json({ error: 'Nicht gefunden' });
+  res.json({ ok: true });
+});
+
+// ── Shares ───────────────────────────────────────────────────────────────────
+router.get('/:id/shares', authenticate, (req, res) => {
+  const s = db.prepare('SELECT * FROM snippets WHERE id=? AND user_id=?').get(req.params.id, uid(req));
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  res.json(db.prepare(`
+    SELECT u.id, u.username, sh.created_at as shared_at
+    FROM snippet_shares sh JOIN users u ON u.id=sh.shared_with WHERE sh.snippet_id=?
+  `).all(s.id));
+});
+
+router.post('/:id/share', authenticate, (req, res) => {
+  const s = db.prepare('SELECT * FROM snippets WHERE id=? AND user_id=?').get(req.params.id, uid(req));
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  const target = db.prepare('SELECT * FROM users WHERE username=?').get(req.body.username);
+  if (!target) return res.status(404).json({ error: 'Benutzer nicht gefunden' });
+  if (target.id === uid(req)) return res.status(400).json({ error: 'Kann nicht mit dir selbst teilen' });
+  db.prepare(`INSERT OR IGNORE INTO snippet_shares (snippet_id,shared_by,shared_with,created_at) VALUES (?,?,?,datetime('now','localtime'))`)
+    .run(s.id, uid(req), target.id);
+  res.json({ ok: true });
+});
+
+router.delete('/:id/share/:userId', authenticate, (req, res) => {
+  const s = db.prepare('SELECT * FROM snippets WHERE id=? AND user_id=?').get(req.params.id, uid(req));
+  if (!s) return res.status(404).json({ error: 'Nicht gefunden' });
+  db.prepare('DELETE FROM snippet_shares WHERE snippet_id=? AND shared_with=?').run(s.id, req.params.userId);
+  res.json({ ok: true });
+});
+
+module.exports = router;