"""Tests for Telegram notification service."""

import uuid
from decimal import Decimal
from unittest.mock import AsyncMock, MagicMock, patch

import pytest

from shared.models import Signal, Order, OrderSide, OrderType, OrderStatus, Position
from shared.notifier import TelegramNotifier


class TestTelegramNotifierEnabled:
    """Test the enabled property."""

    def test_disabled_when_no_token(self):
        notifier = TelegramNotifier(bot_token="", chat_id="123")
        assert notifier.enabled is False

    def test_enabled_with_token(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")
        assert notifier.enabled is True

    def test_disabled_when_token_is_empty_string(self):
        notifier = TelegramNotifier(bot_token="", chat_id="")
        assert notifier.enabled is False


class TestTelegramNotifierSend:
    """Test send method."""

    @pytest.mark.asyncio
    async def test_send_does_nothing_when_disabled(self):
        notifier = TelegramNotifier(bot_token="", chat_id="123")
        # Should not raise or do anything
        await notifier.send("test message")

    @pytest.mark.asyncio
    async def test_send_posts_to_api(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="12345")

        mock_response = AsyncMock()
        mock_response.status = 200
        mock_response.json = AsyncMock(return_value={"ok": True})
        mock_response.__aenter__ = AsyncMock(return_value=mock_response)
        mock_response.__aexit__ = AsyncMock(return_value=False)

        mock_session = AsyncMock()
        mock_session.post = MagicMock(return_value=mock_response)

        with patch.object(notifier, "_session", mock_session):
            await notifier.send("Hello, world!")

        mock_session.post.assert_called_once()
        call_args = mock_session.post.call_args
        assert "fake-token" in call_args[0][0]
        assert call_args[1]["json"]["chat_id"] == "12345"
        assert call_args[1]["json"]["text"] == "Hello, world!"
        assert call_args[1]["json"]["parse_mode"] == "HTML"

    @pytest.mark.asyncio
    async def test_send_with_custom_parse_mode(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="12345")

        mock_response = AsyncMock()
        mock_response.status = 200
        mock_response.json = AsyncMock(return_value={"ok": True})
        mock_response.__aenter__ = AsyncMock(return_value=mock_response)
        mock_response.__aexit__ = AsyncMock(return_value=False)

        mock_session = AsyncMock()
        mock_session.post = MagicMock(return_value=mock_response)

        with patch.object(notifier, "_session", mock_session):
            await notifier.send("test", parse_mode="Markdown")

        call_args = mock_session.post.call_args
        assert call_args[1]["json"]["parse_mode"] == "Markdown"


class TestTelegramNotifierFormatters:
    """Test message formatting methods."""

    @pytest.mark.asyncio
    async def test_send_signal_formats_message(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")
        signal = Signal(
            strategy="rsi_strategy",
            symbol="BTCUSDT",
            side=OrderSide.BUY,
            price=Decimal("50000.00"),
            quantity=Decimal("0.01"),
            reason="RSI oversold",
        )

        with patch.object(notifier, "send", new_callable=AsyncMock) as mock_send:
            await notifier.send_signal(signal)
            mock_send.assert_called_once()
            msg = mock_send.call_args[0][0]
            assert "BUY" in msg
            assert "rsi_strategy" in msg
            assert "BTCUSDT" in msg
            assert "50000.00" in msg
            assert "0.01" in msg
            assert "RSI oversold" in msg

    @pytest.mark.asyncio
    async def test_send_order_formats_message(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")
        order = Order(
            signal_id=str(uuid.uuid4()),
            symbol="ETHUSDT",
            side=OrderSide.SELL,
            type=OrderType.LIMIT,
            price=Decimal("3000.50"),
            quantity=Decimal("1.5"),
            status=OrderStatus.FILLED,
        )

        with patch.object(notifier, "send", new_callable=AsyncMock) as mock_send:
            await notifier.send_order(order)
            mock_send.assert_called_once()
            msg = mock_send.call_args[0][0]
            assert "FILLED" in msg
            assert "ETHUSDT" in msg
            assert "SELL" in msg
            assert "3000.50" in msg
            assert "1.5" in msg

    @pytest.mark.asyncio
    async def test_send_error_formats_message(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")

        with patch.object(notifier, "send", new_callable=AsyncMock) as mock_send:
            await notifier.send_error("Connection failed", service="executor")
            mock_send.assert_called_once()
            msg = mock_send.call_args[0][0]
            assert "Connection failed" in msg
            assert "executor" in msg

    @pytest.mark.asyncio
    async def test_send_daily_summary_formats_message(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")
        positions = [
            Position(
                symbol="BTCUSDT",
                quantity=Decimal("0.1"),
                avg_entry_price=Decimal("50000"),
                current_price=Decimal("51000"),
            ),
        ]

        with patch.object(notifier, "send", new_callable=AsyncMock) as mock_send:
            await notifier.send_daily_summary(
                positions=positions,
                total_value=Decimal("5100.00"),
                daily_pnl=Decimal("100.00"),
            )
            mock_send.assert_called_once()
            msg = mock_send.call_args[0][0]
            assert "BTCUSDT" in msg
            assert "5100.00" in msg
            assert "100.00" in msg


class TestTelegramNotifierClose:
    """Test close method."""

    @pytest.mark.asyncio
    async def test_close_closes_session(self):
        notifier = TelegramNotifier(bot_token="fake-token", chat_id="123")
        mock_session = AsyncMock()
        notifier._session = mock_session
        await notifier.close()
        mock_session.close.assert_called_once()