from __future__ import annotations

from pathlib import Path

import pytest

FIXTURES = Path(__file__).parent / "fixtures"


def test_parse_sample_rss_fixture():
    from daily.news.feeds import NEWS_CATEGORIES
    from daily.news.fetch import _parse_feed

    category = NEWS_CATEGORIES[0]
    feed_name = category.feeds[0].name
    xml = (FIXTURES / "sample-rss.xml").read_text(encoding="utf-8")
    items = _parse_feed(xml, feed_name, category)

    assert len(items) == 1
    assert items[0]["title"] == "Sample AI headline for smoke tests"
    assert items[0]["link"] == "https://example.com/ai-news/1"
    assert items[0]["source_name"] == feed_name
    assert "minimal RSS item" in items[0]["summary"]


def test_rss_user_agent_avoids_bot_blocked_feeds():
    from daily.news.fetch import RSS_USER_AGENT

    assert "daily-robots" not in RSS_USER_AGENT


def test_fetch_one_retries_transient_errors(monkeypatch):
    import httpx

    from daily.news.feeds import NEWS_CATEGORIES
    from daily.news import fetch as news_fetch

    monkeypatch.setenv("DAILY_RSS_RETRY", "2")
    monkeypatch.setattr(news_fetch.time, "sleep", lambda _: None)

    category = NEWS_CATEGORIES[0]
    feed = category.feeds[0]
    calls = {"n": 0}

    class FakeResponse:
        def raise_for_status(self):
            return None

        @property
        def text(self):
            return (FIXTURES / "sample-rss.xml").read_text(encoding="utf-8")

    class FakeClient:
        headers = {"User-Agent": "test"}

        def get(self, url, headers=None):
            calls["n"] += 1
            if calls["n"] < 2:
                raise httpx.RemoteProtocolError("Server disconnected")
            return FakeResponse()

    entries, ok = news_fetch._fetch_one(FakeClient(), category, feed)
    assert ok is True
    assert len(entries) == 1
    assert calls["n"] == 2


def test_fetch_ai_news_offline(monkeypatch):
    from daily.news import fetch as news_fetch

    sample = {
        "title": "Sample AI headline for smoke tests",
        "link": "https://example.com/ai-news/1",
        "summary": "A minimal RSS item used by offline tests.",
        "published": "Wed, 02 Jul 2026 08:00:00 GMT",
        "source_name": "OpenAI",
        "category_id": "official",
        "category_name": "厂商官方",
        "category_icon": "🏢",
    }

    monkeypatch.setattr(
        news_fetch,
        "_fetch_news",
        lambda categories: {
            "enabled": True,
            "hours": 72,
            "categories": [{"id": "official", "name": "厂商官方", "icon": "🏢", "items": [sample]}],
            "flat": [sample],
            "stats": {"feeds_total": 1, "feeds_ok": 1, "items_raw": 1, "feeds_failed": []},
        },
    )

    payload = news_fetch.fetch_ai_news()
    assert payload["enabled"] is True
    assert payload["flat"][0]["title"].startswith("Sample AI")