"""Telegram typing indicator transient backoff tests."""

import sys
from pathlib import Path
from unittest.mock import AsyncMock, MagicMock

import pytest

_repo = str(Path(__file__).resolve().parents[2])
if _repo not in sys.path:
    sys.path.insert(0, _repo)


def _ensure_telegram_mock():
    if "telegram" in sys.modules and hasattr(sys.modules["telegram"], "__file__"):
        return

    mod = MagicMock()
    mod.ext.ContextTypes.DEFAULT_TYPE = type(None)
    mod.constants.ParseMode.MARKDOWN = "Markdown"
    mod.constants.ParseMode.MARKDOWN_V2 = "MarkdownV2"
    mod.constants.ParseMode.HTML = "HTML"
    mod.constants.ChatType.PRIVATE = "private"
    mod.constants.ChatType.GROUP = "group"
    mod.constants.ChatType.SUPERGROUP = "supergroup"
    mod.constants.ChatType.CHANNEL = "channel"
    mod.error.NetworkError = type("NetworkError", (OSError,), {})
    mod.error.TimedOut = type("TimedOut", (OSError,), {})
    mod.error.RetryAfter = type("RetryAfter", (Exception,), {"__init__": lambda self, retry_after=1: setattr(self, "retry_after", retry_after)})
    mod.error.BadRequest = type("BadRequest", (Exception,), {})

    for name in ("telegram", "telegram.ext", "telegram.constants", "telegram.request"):
        sys.modules.setdefault(name, mod)
    sys.modules.setdefault("telegram.error", mod.error)


_ensure_telegram_mock()

from gateway.config import PlatformConfig
from plugins.platforms.telegram.adapter import TelegramAdapter


def _make_adapter():
    adapter = TelegramAdapter(PlatformConfig(enabled=True, token="test-token"))
    adapter._bot = AsyncMock()
    return adapter


@pytest.mark.asyncio
async def test_typing_transient_failure_enters_cooldown(monkeypatch):
    adapter = _make_adapter()
    now = {"value": 1000.0}
    monkeypatch.setattr("plugins.platforms.telegram.adapter.asyncio.get_running_loop", lambda: type("Loop", (), {"time": lambda self: now["value"]})())
    monkeypatch.setattr(adapter, "_telegram_typing_cooldown_seconds", 30.0, raising=False)

    async def fail_once(**kwargs):
        raise OSError("temporary telegram network failure")

    adapter._bot.send_chat_action = AsyncMock(side_effect=fail_once)

    await adapter.send_typing("123")
    await adapter.send_typing("123")

    assert adapter._bot.send_chat_action.await_count == 1
    assert adapter._telegram_typing_cooldown_until["123"] == pytest.approx(1030.0)

    now["value"] = 1031.0
    adapter._bot.send_chat_action = AsyncMock(return_value=None)
    await adapter.send_typing("123")

    assert adapter._bot.send_chat_action.await_count == 1
    assert "123" not in adapter._telegram_typing_cooldown_until


@pytest.mark.asyncio
async def test_typing_dm_topic_fallback_success_does_not_cool_down(monkeypatch):
    adapter = _make_adapter()
    monkeypatch.setattr("plugins.platforms.telegram.adapter.asyncio.get_running_loop", lambda: type("Loop", (), {"time": lambda self: 10.0})())

    calls = []

    async def send_chat_action(**kwargs):
        calls.append(kwargs)
        if "message_thread_id" in kwargs:
            raise RuntimeError("message thread not found")
        return None

    adapter._bot.send_chat_action = AsyncMock(side_effect=send_chat_action)

    await adapter.send_typing(
        "123",
        metadata={"thread_id": "99", "telegram_dm_topic_reply_fallback": True},
    )

    assert len(calls) == 2
    assert "123" not in adapter._telegram_typing_cooldown_until


@pytest.mark.asyncio
async def test_typing_bad_thread_failure_does_not_cool_down(monkeypatch):
    adapter = _make_adapter()
    monkeypatch.setattr("plugins.platforms.telegram.adapter.asyncio.get_running_loop", lambda: type("Loop", (), {"time": lambda self: 10.0})())

    async def bad_request(**kwargs):
        raise ValueError("message thread not found")

    adapter._bot.send_chat_action = AsyncMock(side_effect=bad_request)

    await adapter.send_typing("123", metadata={"thread_id": "99"})
    await adapter.send_typing("123", metadata={"thread_id": "99"})

    assert adapter._bot.send_chat_action.await_count == 2
    assert "123" not in adapter._telegram_typing_cooldown_until