"""Tests for federated store management and reporting."""

from __future__ import annotations

import json
from datetime import datetime, timezone
from pathlib import Path

import pytest

from phase_memory.cli import main
from phase_memory.management import (
    FEDERATED_REPORT_SCHEMA,
    STORE_KIND_LOCAL_GRAPH,
    STORE_KIND_OPS_WARDEN,
    build_federated_report,
    build_store_list,
    classify_store,
    discover_memory_stores,
    resolve_store_reference,
)

FIXTURES = Path(__file__).resolve().parent / "fixtures" / "management"
WINDOW_END = datetime(2026, 7, 3, 12, 0, tzinfo=timezone.utc)


def _fixture_environ(tmp_path: Path) -> dict[str, str]:
    registry = FIXTURES / "registry.json"
    ops_store = FIXTURES / "ops-warden-store"
    local_store = FIXTURES / "local-store"
    return {
        "WARDEN_MEMORY_STORE": str(ops_store),
        "PHASE_MEMORY_REGISTRY": str(registry),
        "PHASE_MEMORY_STORE_PATHS": str(local_store),
        "HOME": str(tmp_path),
        "XDG_DATA_HOME": str(tmp_path / "xdg"),
    }


def test_classify_store_kinds() -> None:
    assert classify_store(FIXTURES / "ops-warden-store") == STORE_KIND_OPS_WARDEN
    assert classify_store(FIXTURES / "local-store") == STORE_KIND_LOCAL_GRAPH
    assert classify_store(FIXTURES / "registry.json") is None


def test_discover_memory_stores_deduplicates_and_merges_registry(tmp_path: Path) -> None:
    environ = _fixture_environ(tmp_path)
    stores, diagnostics = discover_memory_stores(environ)
    assert not any(item.get("severity") == "error" for item in diagnostics)
    store_ids = {store.store_id for store in stores}
    assert "fixture-local-graph" in store_ids
    assert len({str(store.path) for store in stores}) == len(stores)


def test_build_federated_report_aggregate_and_detail(tmp_path: Path) -> None:
    environ = _fixture_environ(tmp_path)
    report = build_federated_report(days=7, environ=environ, window_end=WINDOW_END)
    assert report["schema_version"] == FEDERATED_REPORT_SCHEMA
    assert report["valid"] is True
    assert report["store_count"] == 2
    aggregate = report["aggregate"]
    assert aggregate["episode_count"] == 3
    assert aggregate["audit_event_count"] == 1
    assert aggregate["active_store_count"] == 2
    assert aggregate["by_outcome"]["resolved"] == 1
    assert aggregate["by_outcome"]["skipped"] == 1
    assert aggregate["by_session_kind"]["warden.operator"] == 1
    assert aggregate["by_operation"]["audit.query"] == 1

    detail = build_federated_report(
        days=7,
        focus_store_id="fixture-local-graph",
        environ=environ,
        window_end=WINDOW_END,
    )
    assert detail["focus_store_id"] == "fixture-local-graph"
    assert detail["store_count"] == 1
    assert detail["store_detail"]["episode_count"] == 1
    assert detail["store_detail"]["audit_event_count"] == 1


def test_resolve_store_reference_by_id_and_path(tmp_path: Path) -> None:
    environ = _fixture_environ(tmp_path)
    stores, _ = discover_memory_stores(environ)
    by_id = resolve_store_reference("fixture-local-graph", stores, environ=environ)
    assert by_id is not None
    assert by_id.store_kind == STORE_KIND_LOCAL_GRAPH
    by_path = resolve_store_reference(str(FIXTURES / "ops-warden-store"), stores, environ=environ)
    assert by_path is not None
    assert by_path.store_kind == STORE_KIND_OPS_WARDEN


def test_federated_report_aggregate_fixture(tmp_path: Path) -> None:
    environ = _fixture_environ(tmp_path)
    report = build_federated_report(days=7, environ=environ, window_end=WINDOW_END)
    payload = {
        "aggregate": report["aggregate"],
        "store_count": report["store_count"],
        "stores": [
            {key: store[key] for key in ("store_id", "store_kind", "episode_count", "audit_event_count")}
            for store in report["stores"]
        ],
    }
    expected = json.loads((FIXTURES / "federated-report-aggregate.json").read_text(encoding="utf-8"))
    assert payload["aggregate"] == expected["aggregate"]
    assert payload["store_count"] == expected["store_count"]
    actual_stores = sorted(payload["stores"], key=lambda item: item["store_kind"])
    expected_stores = sorted(expected["stores"], key=lambda item: item["store_kind"])
    for actual, item in zip(actual_stores, expected_stores, strict=True):
        assert actual["store_kind"] == item["store_kind"]
        assert actual["episode_count"] == item["episode_count"]
        assert actual["audit_event_count"] == item["audit_event_count"]


def test_cli_stores_list_and_report(tmp_path: Path, capsys, monkeypatch: pytest.MonkeyPatch) -> None:
    environ = _fixture_environ(tmp_path)
    monkeypatch.setenv("WARDEN_MEMORY_STORE", environ["WARDEN_MEMORY_STORE"])
    monkeypatch.setenv("PHASE_MEMORY_REGISTRY", environ["PHASE_MEMORY_REGISTRY"])
    monkeypatch.setenv("PHASE_MEMORY_STORE_PATHS", environ["PHASE_MEMORY_STORE_PATHS"])
    assert main(["stores", "list", "--format", "summary"]) == 0
    listed = capsys.readouterr().out
    assert "Fixture local graph store" in listed

    assert main(["report", "--days", "7", "--format", "summary"]) == 0
    reported = capsys.readouterr().out
    assert "episodes=" in reported
    assert "active_stores=" in reported


def test_build_store_list_from_registry_only(tmp_path: Path) -> None:
    environ = {
        "WARDEN_MEMORY_STORE": str(tmp_path / "missing-ops"),
        "PHASE_MEMORY_REGISTRY": str(FIXTURES / "registry.json"),
        "PHASE_MEMORY_STORE_PATHS": str(FIXTURES / "local-store"),
    }
    listing = build_store_list(environ=environ)
    assert listing["valid"] is True
    assert listing["store_count"] == 1
    assert listing["stores"][0]["store_id"] == "fixture-local-graph"