import asyncio
from datetime import datetime, timezone
from types import SimpleNamespace

from bot.services import subscription_lifecycle_notifications as lifecycle
from bot.services.subscription_lifecycle_notifications import (
    SubscriptionLifecycleNotificationService,
    SubscriptionNotificationStage,
)


class FakeI18n:
    def gettext(self, lang_code, key, **kwargs):
        messages = {
            "subscription_72h_notification": "Hi {user_name}, expires on {end_date}",
            "email_subscription_lifecycle_subject_before_days": "{days} days left",
            "email_subscription_lifecycle_subject_before_hours": "{hours} hours left",
            "email_subscription_lifecycle_subject_expired": "Expired",
            "email_subscription_lifecycle_subject_expired_after": "Expired yesterday",
            "email_subscription_lifecycle_subject_autorenew": "Auto-renewal tomorrow",
            "email_subscription_lifecycle_intro": "Subscription notice",
            "email_subscription_lifecycle_row_end_date": "Active until",
            "email_subscription_lifecycle_cta": "Open dashboard",
            "email_subscription_lifecycle_text_renew": "Dashboard: {url}",
            "email_footer_auto": "Sent by {brand}",
        }
        return messages.get(key, key).format(**kwargs)


class FakeBot:
    def __init__(self):
        self.messages = []

    async def send_message(self, chat_id, text, reply_markup=None):
        self.messages.append(
            {
                "chat_id": chat_id,
                "text": text,
                "reply_markup": reply_markup,
            }
        )


class FakeEmailService:
    def __init__(self):
        self.messages = []

    async def send_rendered_email(self, *, email, content):
        self.messages.append({"email": email, "content": content})


def _settings(**overrides):
    return SimpleNamespace(
        DEFAULT_LANGUAGE="ru",
        SUBSCRIPTION_EMAIL_NOTIFICATIONS_ENABLED=True,
        SUBSCRIPTION_MINI_APP_URL="https://app.example.test/",
        WEBAPP_PRIMARY_COLOR="#00fe7a",
        WEBAPP_TITLE="Minishop",
        WEBAPP_LOGO_USE_EMOJI=False,
        WEBAPP_LOGO_URL="",
        email_auth_configured=True,
        **overrides,
    )


def _subscription():
    return SimpleNamespace(
        subscription_id=42,
        user_id=123,
        end_date=datetime(2026, 6, 1, tzinfo=timezone.utc),
    )


def _user(**overrides):
    return SimpleNamespace(
        user_id=123,
        telegram_id=555,
        email="user@example.test",
        language_code="ru",
        first_name="Ada",
        **overrides,
    )


def test_send_stage_records_telegram_and_email_channel_keys(monkeypatch):
    recorded = []

    async def fake_has(session, subscription_id, notification_key):
        return notification_key in recorded

    async def fake_record(session, subscription_id, notification_key, *, sent_at=None):
        recorded.append(notification_key)

    monkeypatch.setattr(lifecycle.subscription_dal, "has_subscription_notification", fake_has)
    monkeypatch.setattr(lifecycle.subscription_dal, "record_subscription_notification", fake_record)

    bot = FakeBot()
    email_service = FakeEmailService()
    service = SubscriptionLifecycleNotificationService(
        _settings(),
        bot,
        FakeI18n(),
        email_service=email_service,
    )

    async def run():
        return await service.send_stage(
            object(),
            _subscription(),
            SubscriptionNotificationStage(
                key="before_3d",
                message_key="subscription_72h_notification",
                days_left=3,
            ),
            user=_user(),
            telegram_markup="markup",
        )

    delivery = asyncio.run(run())

    assert delivery.telegram_sent is True
    assert delivery.email_sent is True
    assert bot.messages == [
        {
            "chat_id": 555,
            "text": "Hi Ada, expires on 2026-06-01",
            "reply_markup": "markup",
        }
    ]
    assert email_service.messages[0]["email"] == "user@example.test"
    assert recorded == ["before_3d:telegram", "before_3d:email"]


def test_legacy_stage_key_suppresses_only_telegram(monkeypatch):
    recorded = ["before_3d"]

    async def fake_has(session, subscription_id, notification_key):
        return notification_key in recorded

    async def fake_record(session, subscription_id, notification_key, *, sent_at=None):
        recorded.append(notification_key)

    monkeypatch.setattr(lifecycle.subscription_dal, "has_subscription_notification", fake_has)
    monkeypatch.setattr(lifecycle.subscription_dal, "record_subscription_notification", fake_record)

    bot = FakeBot()
    email_service = FakeEmailService()
    service = SubscriptionLifecycleNotificationService(
        _settings(),
        bot,
        FakeI18n(),
        email_service=email_service,
    )

    async def run():
        return await service.send_stage(
            object(),
            _subscription(),
            SubscriptionNotificationStage(
                key="before_3d",
                message_key="subscription_72h_notification",
                days_left=3,
            ),
            user=_user(),
            telegram_markup="markup",
        )

    delivery = asyncio.run(run())

    assert delivery.telegram_sent is False
    assert delivery.email_sent is True
    assert bot.messages == []
    assert email_service.messages[0]["email"] == "user@example.test"
    assert recorded == ["before_3d", "before_3d:email"]