# -*- coding: utf-8 -*-
"""UP 粉丝快照采集测试（不联网）: uv run python tests/test_up_profile.py"""

import os
import sys
import tempfile
from pathlib import Path
from types import SimpleNamespace

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.stdout.reconfigure(encoding="utf-8")

from reaction_board.bilibili.models import FavResource  # noqa: E402
from reaction_board.config import FolderConfig  # noqa: E402
from reaction_board.database import Database  # noqa: E402
from reaction_board.repository import Repository  # noqa: E402
from reaction_board.services.up_profile import UpProfileService  # noqa: E402

FOLDER = FolderConfig(year=2026, media_id=3700023351, title="2026")
NOW = 1_800_000_000


def resource(aid, up_mid):
    return FavResource(
        aid=aid,
        bvid=f"BV{aid}",
        title=f"视频{aid}",
        up_mid=up_mid,
        up_name=f"UP{up_mid}",
        pubdate=NOW - 86400,
        duration=7200,
        cover=None,
        attr=0,
        fav_time=None,
        pages=2,
    )


class FakeClient:
    def __init__(self, *, failing=()):
        self.calls = []
        self.failing = set(failing)

    def relation_stat(self, mid):
        self.calls.append(int(mid))
        if int(mid) in self.failing:
            raise RuntimeError("simulated network error")
        return SimpleNamespace(mid=int(mid), follower=1000 + int(mid), following=5)


def setup(tmp):
    db = Database(Path(tmp) / "app.db")
    db.initialize()
    repo = Repository(db, clock=lambda: NOW)
    repo.ensure_folder(FOLDER)
    for aid, mid in ((1, 100), (2, 100), (3, 200)):
        repo.upsert_from_fav(resource(aid, mid), FOLDER.media_id, was_added=True)
    return db, repo


def test_capture_dedupes_and_continues_after_failure():
    with tempfile.TemporaryDirectory() as tmp:
        db, repo = setup(tmp)
        try:
            client = FakeClient(failing={200})
            service = UpProfileService(repo, lambda: client, clock=lambda: NOW)
            result = service.capture(
                [100, 100, 200, None, 0], live_since=NOW - 3600
            )
            assert result.requested == 2
            assert client.calls == [100, 200]
            assert result.updated_videos == 2
            assert result.failed == 1
            assert "200" in result.errors[0]

            assert repo.get_video(1)["up_follower"] == 1100
            assert repo.get_video(2)["up_follower"] == 1100
            assert repo.get_video(3)["up_follower"] is None
            assert repo.get_up_profile(100)["follower_first"] == 1100
            assert repo.get_up_profile(200) is None
        finally:
            db.close()


class BlockingClient:
    """模拟 DNS/传输层挂起：请求永不返回。"""

    def __init__(self, *, block=()):
        self.calls = []
        self.block = set(block)

    def relation_stat(self, mid):
        self.calls.append(int(mid))
        if int(mid) in self.block:
            time.sleep(5)
            raise AssertionError("不应返回")
        return SimpleNamespace(mid=int(mid), follower=1000 + int(mid), following=5)


def test_capture_times_out_and_continues():
    with tempfile.TemporaryDirectory() as tmp:
        db, repo = setup(tmp)
        try:
            client = BlockingClient(block={100})
            service = UpProfileService(
                repo, lambda: client, clock=lambda: NOW,
                request_timeout=0.05, heartbeat=1,
            )
            result = service.capture([100, 200])
            assert result.requested == 2
            assert result.failed == 1
            assert "timeout" in result.errors[0]
            # 卡住的 UP 不影响后续
            assert repo.get_video(3)["up_follower"] == 1200
            assert repo.get_video(1)["up_follower"] is None
        finally:
            db.close()


def test_capture_marks_old_videos_as_backfilled():
    with tempfile.TemporaryDirectory() as tmp:
        db, repo = setup(tmp)
        try:
            client = FakeClient()
            service = UpProfileService(repo, lambda: client, clock=lambda: NOW)
            service.capture([100], live_since=NOW + 1)
            assert repo.get_video(1)["up_follower_backfilled"] == 1
            assert repo.get_video(2)["up_follower_backfilled"] == 1
        finally:
            db.close()


def test_backfill_dry_run_and_limit():
    with tempfile.TemporaryDirectory() as tmp:
        db, repo = setup(tmp)
        try:
            client = FakeClient()
            service = UpProfileService(repo, lambda: client, clock=lambda: NOW)

            dry = service.backfill(dry_run=True)
            assert dry.requested == 2
            assert client.calls == []
            assert repo.up_follower_coverage()["missing"] == 3

            limited = service.backfill(limit=1)
            assert limited.requested == 1
            assert client.calls == [100]
            assert repo.get_video(1)["up_follower_backfilled"] == 1
            assert repo.get_video(3)["up_follower"] is None

            rest = service.backfill()
            assert rest.requested == 1
            assert client.calls == [100, 200]
            assert repo.up_follower_coverage()["missing"] == 0
        finally:
            db.close()


def main():
    test_capture_dedupes_and_continues_after_failure()
    test_capture_marks_old_videos_as_backfilled()
    test_backfill_dry_run_and_limit()
    print("OK: UP 粉丝快照采集与回填测试全部通过")


if __name__ == "__main__":
    main()