from unittest.mock import AsyncMock, MagicMock

import pytest

from app.webhook.models import EventType


@pytest.fixture(autouse=True)
def _populate_env(monkeypatch):
    monkeypatch.setenv("NEXTCLOUD_WEBDAV_URL", "http://nc")
    monkeypatch.setenv("NEXTCLOUD_USER", "u")
    monkeypatch.setenv("NEXTCLOUD_APP_PASSWORD", "p")
    monkeypatch.setenv("OLLAMA_URL", "http://ollama")
    monkeypatch.setenv("OLLAMA_EMBED_MODEL", "m")
    monkeypatch.setenv("QDRANT_URL", "http://qdrant")
    monkeypatch.setenv("QDRANT_COLLECTION", "rag_test")
    monkeypatch.setenv("WEBHOOK_SECRET", "abc")
    from app.config import get_settings
    get_settings.cache_clear()
    yield
    get_settings.cache_clear()


@pytest.mark.asyncio
async def test_process_deleted_event_calls_delete_only(monkeypatch):
    from app.ingest.pipeline import process_file

    qdrant = MagicMock()
    monkeypatch.setattr("app.ingest.pipeline._qdrant_client", lambda: qdrant)

    download_mock = AsyncMock()
    monkeypatch.setattr("app.ingest.pipeline.download_file", download_mock)

    await process_file(
        file_path="Documents/THB/Studium/2.Semester/Databases/x.pdf",
        event_type=EventType.DELETED,
    )

    download_mock.assert_not_called()
    qdrant.delete.assert_called_once()


@pytest.mark.asyncio
async def test_process_outside_root_skips(monkeypatch):
    from app.ingest.pipeline import process_file

    qdrant = MagicMock()
    monkeypatch.setattr("app.ingest.pipeline._qdrant_client", lambda: qdrant)

    download_mock = AsyncMock()
    monkeypatch.setattr("app.ingest.pipeline.download_file", download_mock)

    await process_file(
        file_path="Documents/Other/x.pdf",
        event_type=EventType.CREATED,
    )

    download_mock.assert_not_called()
    qdrant.delete.assert_not_called()
    qdrant.upsert.assert_not_called()


@pytest.mark.asyncio
async def test_process_unsupported_extension_skips(monkeypatch):
    from app.ingest.pipeline import process_file

    qdrant = MagicMock()
    monkeypatch.setattr("app.ingest.pipeline._qdrant_client", lambda: qdrant)
    monkeypatch.setattr("app.ingest.pipeline.download_file", AsyncMock())

    await process_file(
        file_path="Documents/THB/Studium/2.Semester/Databases/notes.txt",
        event_type=EventType.CREATED,
    )

    qdrant.upsert.assert_not_called()


@pytest.mark.asyncio
async def test_process_created_full_flow(monkeypatch, sample_pdf_bytes):
    from app.ingest.pipeline import process_file

    qdrant = MagicMock()
    monkeypatch.setattr("app.ingest.pipeline._qdrant_client", lambda: qdrant)

    monkeypatch.setattr(
        "app.ingest.pipeline.download_file",
        AsyncMock(return_value=sample_pdf_bytes),
    )
    monkeypatch.setattr(
        "app.ingest.pipeline.embed_texts",
        AsyncMock(return_value=[[0.1] * 4, [0.2] * 4]),
    )

    await process_file(
        file_path="Documents/THB/Studium/2.Semester/Databases/Vorlesungen/x.pdf",
        event_type=EventType.CREATED,
    )

    # delete called first (idempotency), upsert called after
    qdrant.delete.assert_called_once()
    qdrant.upsert.assert_called_once()

    upserted_points = qdrant.upsert.call_args.kwargs["points"]
    assert len(upserted_points) >= 1
    payload = upserted_points[0].payload
    assert payload["semester"] == "2.Semester"
    assert payload["fach"] == "Databases"
    assert payload["typ"] == "Vorlesungen"
    assert payload["file_type"] == "pdf"
    assert payload["chunk_index"] == 0
    assert "ingested_at" in payload