"""Тесты раздела «Логи» (без ClickHouse — чтение подменяется)."""

from __future__ import annotations

from datetime import datetime
from typing import Any

import pytest

from common.analytics import read as analytics_read

EVENT: dict[str, Any] = {
    "event_time": datetime(2026, 10, 18, 17, 0, 0),  # UTC, без tz — как отдаёт clickhouse-connect
    "event_type": "command",
    "user_id": 42,
    "username": "test_user",
    "chat_id": -100123,
    "payload": '{"command": "инфо", "args_count": 0}',
    "bot_version": "0.4.8",
    "prod": 0,
}


@pytest.fixture
def fake_read(monkeypatch: pytest.MonkeyPatch) -> dict[str, Any]:
    state: dict[str, Any] = {"total": 1}

    async def fetch_events(settings: Any, **kwargs: Any) -> tuple[list[dict[str, Any]], int]:
        state["kwargs"] = kwargs
        return [EVENT], state["total"]

    monkeypatch.setattr(analytics_read, "fetch_events", fetch_events)
    return state


def test_logs_page(fake_read: dict[str, Any], client_factory) -> None:
    response = client_factory().get("/logs")

    assert response.status_code == 200
    assert "command" in response.text
    assert "@test_user" in response.text
    assert "инфо" in response.text
    assert "20:00:00" in response.text  # 17:00 UTC -> 20:00 МСК


def test_logs_filters_passed(fake_read: dict[str, Any], client_factory) -> None:
    client_factory().get(
        "/logs",
        params={
            "event_type": "command",
            "user": "42",
            "date_from": "2026-10-01",
            "date_to": "2026-10-18",
        },
    )

    assert fake_read["kwargs"] == {
        "event_type": "command",
        "user": "42",
        "date_from": "2026-10-01",
        "date_to": "2026-10-18",
        "limit": 50,
        "offset": 0,
    }


def test_logs_pagination(fake_read: dict[str, Any], client_factory) -> None:
    fake_read["total"] = 120

    response = client_factory().get("/logs", params={"page": "2"})

    assert "Страница 2 из 3" in response.text
    assert fake_read["kwargs"]["offset"] == 50


def test_logs_clickhouse_error(client_factory, monkeypatch: pytest.MonkeyPatch) -> None:
    async def fetch_events(settings: Any, **kwargs: Any) -> tuple[list[dict[str, Any]], int]:
        raise RuntimeError("ClickHouse недоступен")

    monkeypatch.setattr(analytics_read, "fetch_events", fetch_events)

    response = client_factory().get("/logs")

    assert response.status_code == 200
    assert "ClickHouse недоступен" in response.text


def test_logs_bad_date(client_factory, monkeypatch: pytest.MonkeyPatch) -> None:
    async def fetch_events(settings: Any, **kwargs: Any) -> tuple[list[dict[str, Any]], int]:
        raise ValueError("bad date")

    monkeypatch.setattr(analytics_read, "fetch_events", fetch_events)

    response = client_factory().get("/logs", params={"date_from": "18.10.2026"})

    assert response.status_code == 200
    assert "формате ГГГГ-ММ-ДД" in response.text