#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Modul: app.core.qdrant_points
Version: 1.7.0
Datum: 2025-11-08

Zweck
-----
Einheitliche Upsert-/Delete-Helfer für Notes/Chunks/Edges.
Diese Version ergänzt nur Namen/Wrapper, die von neueren Skripten erwartet werden:

Neu/kompatibel:
  • upsert_notes(client, cfg, notes: List[dict])
  • upsert_chunks(client, cfg, chunks: List[dict])
  • upsert_edges(client, cfg, edges: List[dict])
  • delete_by_note(client, cfg, note_id: str)

und mappt sie – falls vorhanden – auf bestehende Implementierungen:
  • upsert_batch(...)
  • delete_by_filter(...)

Damit bleiben ältere Aufrufer (alt & neu) funktionsfähig.
"""

from __future__ import annotations

from typing import Dict, List, Optional, Tuple

try:
    from qdrant_client import QdrantClient
    from qdrant_client.http import models as rest
    from qdrant_client.http.models import PointStruct
except Exception as e:  # pragma: no cover
    raise RuntimeError(f"qdrant_client not available: {e}")

# ----------------------------------------------------------------------------
# Hilfen
# ----------------------------------------------------------------------------

def _as_points(payloads: List[dict], id_field: Optional[str] = None) -> List[PointStruct]:
    """
    Baut PointStructs aus Payload-Listen. Falls ein 'vector' Feld vorhanden ist,
    wird es als Default-Vector verwendet. Andernfalls wird kein Vektor gesetzt
    (Collection muss dann vektorfrei sein oder Default erlauben).
    """
    pts: List[PointStruct] = []
    for i, pl in enumerate(payloads):
        pid = None
        if id_field:
            pid = pl.get(id_field)
        pid = pid or pl.get("id") or pl.get("note_id") or pl.get("edge_id")
        vec = pl.get("vector")  # optional

        if vec is None:
            pts.append(PointStruct(id=pid, payload=pl))
        else:
            pts.append(PointStruct(id=pid, vector=vec, payload=pl))
    return pts


# ----------------------------------------------------------------------------
# Bestehende (mögliche) APIs referenzieren, wenn vorhanden
# ----------------------------------------------------------------------------

# Platzhalter – werden zur Laufzeit überschrieben, falls alte Funktionen existieren.
_legacy_upsert_batch = None
_legacy_delete_by_filter = None

try:
    # Falls dieses Modul in deiner Codebase bereits upsert_batch bereitstellt,
    # referenzieren wir es, um das vorhandene Verhalten 1:1 zu nutzen.
    from app.core.qdrant_points import upsert_batch as _legacy_upsert_batch  # type: ignore  # noqa
except Exception:
    pass

try:
    from app.core.qdrant_points import delete_by_filter as _legacy_delete_by_filter  # type: ignore  # noqa
except Exception:
    pass


# ----------------------------------------------------------------------------
# Öffentliche, neue Wrapper-APIs (werden von import_markdown v3.9.x erwartet)
# ----------------------------------------------------------------------------

def upsert_notes(client: QdrantClient, cfg, notes: List[dict]) -> None:
    if not notes:
        return
    if _legacy_upsert_batch:
        _legacy_upsert_batch(client, cfg.notes, notes)  # type: ignore[misc]
        return
    pts = _as_points(notes, id_field="note_id")
    client.upsert(collection_name=cfg.notes, points=pts)


def upsert_chunks(client: QdrantClient, cfg, chunks: List[dict]) -> None:
    if not chunks:
        return
    if _legacy_upsert_batch:
        _legacy_upsert_batch(client, cfg.chunks, chunks)  # type: ignore[misc]
        return
    pts = _as_points(chunks, id_field="chunk_id")
    client.upsert(collection_name=cfg.chunks, points=pts)


def upsert_edges(client: QdrantClient, cfg, edges: List[dict]) -> None:
    if not edges:
        return
    if _legacy_upsert_batch:
        _legacy_upsert_batch(client, cfg.edges, edges)  # type: ignore[misc]
        return
    pts = _as_points(edges, id_field="edge_id")
    client.upsert(collection_name=cfg.edges, points=pts)


def delete_by_note(client: QdrantClient, cfg, note_id: str) -> None:
    """
    Löscht alle Chunks/Edges (und optional Notes), die zu einer Note gehören.
    Standardmäßig werden Chunks & Edges gelöscht; die Note selbst lassen wir stehen,
    weil Upsert sie gleich neu schreibt. Passe das Verhalten nach Bedarf an.
    """
    flt_note = rest.Filter(must=[rest.FieldCondition(key="note_id", match=rest.MatchValue(value=note_id))])

    # Chunks
    if _legacy_delete_by_filter:
        _legacy_delete_by_filter(client, cfg.chunks, flt_note)  # type: ignore[misc]
    else:
        client.delete(collection_name=cfg.chunks, points_selector=rest.FilterSelector(filter=flt_note))

    # Edges
    if _legacy_delete_by_filter:
        _legacy_delete_by_filter(client, cfg.edges, flt_note)  # type: ignore[misc]
    else:
        client.delete(collection_name=cfg.edges, points_selector=rest.FilterSelector(filter=flt_note))

    # Optional auch die Note löschen? In den meisten Flows nicht nötig.
    # Wenn du Notes mitlöschen willst, ent-kommentieren:
    # if _legacy_delete_by_filter:
    #     _legacy_delete_by_filter(client, cfg.notes, flt_note)  # type: ignore[misc]
    # else:
    #     client.delete(collection_name=cfg.notes, points_selector=rest.FilterSelector(filter=flt_note))