update

backend/main.py

@@ -276,6 +276,32 @@ def ueben_antwort(a: UebenAntwort):
     return {"box": box}
 
 
+@app.get("/api/topics/{topic}/baustein/{baustein_id}/karten")
+def baustein_karten(topic: str, baustein_id: int):
+    # Flashcards genau dieses Bausteins — NICHT faellig-gefiltert (gerade gelesen → jetzt
+    # prüfen). Beantwortet wird über /api/ueben/antwort, Leitner-Spacing bleibt intakt.
+    rows = db.query(
+        "SELECT ar.id, ar.inhalt, a.titel, a.level, COALESCE(l.box,1) AS box"
+        " FROM artefakte ar JOIN atome a ON ar.atom_id=a.id"
+        " LEFT JOIN leitner l ON l.artefakt_id=ar.id"
+        " WHERE a.topic=? AND a.baustein_id=? AND ar.typ='flashcard'"
+        " AND ar.status='verifiziert' ORDER BY a.ord, ar.id", (topic, baustein_id))
+    return [{**r, "inhalt": db.uj(r["inhalt"], {})} for r in rows]
+
+
+@app.get("/api/topics/{topic}/lernstand")
+def lernstand_holen(topic: str):
+    return db.query("SELECT baustein_id, status, xp FROM lernstand WHERE topic=?", (topic,))
+
+
+@app.post("/api/topics/{topic}/baustein/{baustein_id}/fertig")
+def baustein_fertig(topic: str, baustein_id: int):
+    db.execute("INSERT INTO lernstand(topic, baustein_id, status) VALUES(?,?,'fertig')"
+               " ON CONFLICT(topic, baustein_id) DO UPDATE SET status='fertig'",
+               (topic, baustein_id))
+    return {"ok": True}
+
+
 @app.get("/api/runs/{run_id}/kennzahlen")
 def kennzahlen(run_id: int):
     return {"zeilen": ledger.kennzahlen(run_id), "verbraucht": ledger.verbraucht(run_id)}