"""Scheduled offline daily Telegram report."""

from __future__ import annotations

from datetime import datetime, timezone
from unittest.mock import AsyncMock, patch

import pytest

from server.application.services import offline_daily_report_schedule as sched
from server.background.schedule_runner import _cron_match


def test_cron_matches_beijing_1150():
    # 2026-06-17 11:50 Beijing = 2026-06-17 03:50 UTC
    at = datetime(2026, 6, 17, 3, 50, tzinfo=timezone.utc)
    assert _cron_match("50 11 * * *", at) is True


@pytest.mark.asyncio
async def test_run_scheduled_sends_telegram(monkeypatch):
    monkeypatch.setattr(sched.settings, "OFFLINE_DAILY_REPORT_ENABLED", "true")
    monkeypatch.setattr(sched, "_health_check_enabled", lambda: False)
    monkeypatch.setattr(sched, "_already_ran_today", AsyncMock(return_value=False))
    monkeypatch.setattr(sched, "_mark_ran_today", AsyncMock())
    monkeypatch.setattr(
        sched,
        "collect_offline_snapshot",
        AsyncMock(return_value={
            "monitored": 10,
            "online": 7,
            "offline": 3,
            "offline_servers": [{"id": 1, "name": "srv-1"}],
        }),
    )
    send = AsyncMock(return_value=True)
    monkeypatch.setattr(
        "server.infrastructure.telegram.send_telegram_offline_daily_report",
        send,
    )

    result = await sched.run_scheduled_offline_daily_report()

    assert result["action"] == "sent"
    assert result["offline"] == 3
    send.assert_awaited_once()
    kwargs = send.await_args.kwargs
    assert kwargs["monitored"] == 10
    assert kwargs["offline"] == 3


@pytest.mark.asyncio
async def test_run_scheduled_health_check_before_report(monkeypatch):
    monkeypatch.setattr(sched.settings, "OFFLINE_DAILY_REPORT_ENABLED", "true")
    monkeypatch.setattr(sched, "_health_check_enabled", lambda: True)
    monkeypatch.setattr(sched, "_already_ran_today", AsyncMock(return_value=False))
    monkeypatch.setattr(sched, "_mark_ran_today", AsyncMock())
    collect = AsyncMock(
        return_value={
            "monitored": 10,
            "online": 8,
            "offline": 2,
            "offline_servers": [{"id": 2, "name": "b"}],
        }
    )
    monkeypatch.setattr(sched, "collect_offline_snapshot", collect)
    health = AsyncMock(return_value={"checked": 2, "online": 1, "offline": 1, "errors": 0})
    monkeypatch.setattr(sched, "health_check_server_ids", health)
    send = AsyncMock(return_value=True)
    monkeypatch.setattr(
        "server.infrastructure.telegram.send_telegram_offline_daily_report",
        send,
    )

    result = await sched.run_scheduled_offline_daily_report(
        preflight={"checked": 2, "online": 1, "offline": 1, "errors": 0},
    )

    assert result["action"] == "sent"
    collect.assert_awaited_once()
    health.assert_not_awaited()
    kwargs = send.await_args.kwargs
    assert kwargs["offline"] == 2
    assert kwargs["preflight"] == {"checked": 2, "online": 1, "offline": 1, "errors": 0}


@pytest.mark.asyncio
async def test_run_scheduled_preflight_only_when_report_disabled(monkeypatch):
    monkeypatch.setattr(sched, "_health_check_enabled", lambda: True)
    monkeypatch.setattr(sched, "_already_ran_preflight_today", AsyncMock(return_value=False))
    monkeypatch.setattr(sched, "_mark_preflight_ran_today", AsyncMock())
    monkeypatch.setattr(
        sched,
        "collect_offline_snapshot",
        AsyncMock(return_value={
            "monitored": 10,
            "online": 7,
            "offline": 3,
            "offline_servers": [{"id": 1, "name": "a"}, {"id": 2, "name": "b"}],
        }),
    )
    health = AsyncMock(return_value={"checked": 2, "online": 1, "offline": 1, "errors": 0})
    monkeypatch.setattr(sched, "health_check_server_ids", health)

    result = await sched.run_scheduled_offline_preflight()

    assert result["action"] == "checked"
    health.assert_awaited_once_with([1, 2])


@pytest.mark.asyncio
async def test_run_scheduled_skips_no_monitored(monkeypatch):
    monkeypatch.setattr(sched.settings, "OFFLINE_DAILY_REPORT_ENABLED", "true")
    monkeypatch.setattr(sched, "_health_check_enabled", lambda: False)
    monkeypatch.setattr(sched, "_already_ran_today", AsyncMock(return_value=False))
    mark = AsyncMock()
    monkeypatch.setattr(sched, "_mark_ran_today", mark)
    monkeypatch.setattr(
        sched,
        "collect_offline_snapshot",
        AsyncMock(return_value={"monitored": 0, "online": 0, "offline": 0, "offline_servers": []}),
    )

    result = await sched.run_scheduled_offline_daily_report()

    assert result["reason"] == "no_monitored_servers"
    mark.assert_awaited_once()