from __future__ import annotations

import json
import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).parents[1]))

from analysis_store import cleanup_legacy_files, current_filename
from session_store import merge_session_patch


def test_session_patch_preserves_other_sessions_and_detects_conflicts():
    existing = {
        "revision": 4,
        "profile": {"start_date": "2026-01-01"},
        "sessions": {"w01-d01": {"status": "completed"}, "w01-d02": {"status": "planned"}},
    }
    merged = merge_session_patch(existing, {
        "expected_revision": 4,
        "session_key": "w01-d02",
        "session": {"status": "stopped"},
    }, "2026-01-02T00:00:00Z")
    assert merged["revision"] == 5
    assert merged["sessions"]["w01-d01"]["status"] == "completed"
    assert merged["sessions"]["w01-d02"]["status"] == "stopped"
    try:
        merge_session_patch(merged, {"expected_revision": 4}, "2026-01-02T00:00:01Z")
    except RuntimeError as exc:
        assert str(exc) == "revision_conflict:5"
    else:
        raise AssertionError("Revisionskonflikt wurde nicht erkannt")


def test_analysis_cleanup_keeps_exactly_current_scope(tmp_path: Path):
    records = [
        "week-01_20260101T100000Z.json",
        "week-01_20260102T100000Z.json",
        "week-02_20260101T100000Z.json",
        "overall_20260101T100000Z.json",
        "index.json",
        "state.json",
    ]
    for name in records:
        (tmp_path / name).write_text(json.dumps({"name": name}), encoding="utf-8")
    keep = current_filename({"type": "week", "week": 1})
    (tmp_path / keep).write_text("{}", encoding="utf-8")
    cleanup_legacy_files(tmp_path, {"type": "week", "week": 1}, keep)
    names = {path.name for path in tmp_path.glob("*.json")}
    assert keep in names
    assert "week-02_20260101T100000Z.json" in names
    assert "overall_20260101T100000Z.json" in names
    assert "week-01_20260101T100000Z.json" not in names
    assert "week-01_20260102T100000Z.json" not in names