"""群文件打包/投递 (group_file.py) 单元测试

group_file.py 只依赖标准库 + nonebot.logger，故用 importlib 按文件路径裸加载
（与 test_video_policy.py 同法）。build_archive 一律显式传 out_dir —— 默认目录
要经相对导入取 utils.get_temp_root()，裸加载模块没有包上下文。
"""

import importlib.util
import sys
import zipfile
from pathlib import Path

import pytest

_MODULE_PATH = (
    Path(__file__).resolve().parents[1]
    / "hexi"
    / "plugins"
    / "nonebot_plugin_video_analysis"
    / "services"
    / "storage"
    / "group_file.py"
)


@pytest.fixture(scope="module")
def gf():
    """以独立模块名加载 group_file.py，避免与插件包 __init__ 冲突"""
    spec = importlib.util.spec_from_file_location(
        "video_group_file_under_test", _MODULE_PATH
    )
    module = importlib.util.module_from_spec(spec)
    sys.modules[spec.name] = module
    spec.loader.exec_module(module)
    yield module
    sys.modules.pop(spec.name, None)


def _make_files(directory: Path, names: list[str]) -> list[Path]:
    directory.mkdir(parents=True, exist_ok=True)
    made = []
    for name in names:
        path = directory / name
        path.write_bytes(f"hello {name}".encode())
        made.append(path)
    return made


def test_plain_archive(gf, tmp_path):
    files = _make_files(tmp_path / "src", ["a.txt", "b.txt"])
    archive = gf.build_archive(files, "我的作品", out_dir=tmp_path / "out")

    assert archive.exists() and archive.suffix == ".zip"
    assert "我的作品" in archive.name
    with zipfile.ZipFile(archive) as zf:
        assert sorted(zf.namelist()) == ["a.txt", "b.txt"]
        assert zf.read("a.txt") == b"hello a.txt"


def test_encrypted_archive_requires_password(gf, tmp_path):
    pyzipper = pytest.importorskip("pyzipper")
    files = _make_files(tmp_path / "src", ["v.mp4"])
    archive = gf.build_archive(
        files, "加密作品", password="pw123", out_dir=tmp_path / "out"
    )

    # 标准库打不开加密包
    with zipfile.ZipFile(archive) as zf:
        with pytest.raises(RuntimeError):
            zf.read("v.mp4")

    # 正确密码可读，错误密码不行
    with pyzipper.AESZipFile(archive) as zf:
        zf.setpassword(b"pw123")
        assert zf.read("v.mp4") == b"hello v.mp4"
    with pyzipper.AESZipFile(archive) as zf:
        zf.setpassword(b"wrong")
        with pytest.raises(RuntimeError):
            zf.read("v.mp4")


def test_duplicate_names_indexed(gf, tmp_path):
    first = _make_files(tmp_path / "p1", ["same.txt"])[0]
    second = _make_files(tmp_path / "p2", ["same.txt"])[0]
    archive = gf.build_archive([first, second], "t", out_dir=tmp_path / "out")

    with zipfile.ZipFile(archive) as zf:
        assert sorted(zf.namelist()) == ["same.txt", "same_2.txt"]
        assert zf.read("same_2.txt") == b"hello same.txt"


def test_output_path_is_unique(gf, tmp_path):
    files = _make_files(tmp_path / "src", ["a.txt"])
    out = tmp_path / "out"
    one = gf.build_archive(files, "t", out_dir=out)
    two = gf.build_archive(files, "t", out_dir=out)
    assert one != two and one.exists() and two.exists()


def test_placeholder_title_falls_back(gf, tmp_path):
    """universal.py 传的 title 是占位符 "title"，不该出现在文件名里"""
    files = _make_files(tmp_path / "src", ["a.txt"])
    archive = gf.build_archive(files, "title", out_dir=tmp_path / "out")
    assert archive.name.startswith("群文件_")
    assert "群文件_群文件" not in archive.name


def test_title_with_path_separators_is_sanitized(gf, tmp_path):
    """原始标题（抖音文案/YouTube 标题）可能带 /、换行、#话题，不能进文件名"""
    files = _make_files(tmp_path / "src", ["a.txt"])
    archive = gf.build_archive(files, "和/或 #话题\n测试", out_dir=tmp_path / "out")

    assert "/" not in archive.name and "\\" not in archive.name
    assert "\n" not in archive.name and "#" not in archive.name
    assert archive.name.startswith("和_或_测试")


def test_title_starting_with_archive_prefix_falls_back(gf, tmp_path):
    """标题本身以「群文件」开头时不要产出 群文件_xxx_群文件_yyy.zip"""
    files = _make_files(tmp_path / "src", ["a.txt"])
    archive = gf.build_archive(files, "群文件_120606", out_dir=tmp_path / "out")
    assert archive.name.startswith("群文件_")
    assert "群文件_120606_群文件" not in archive.name


def test_empty_or_missing_input(gf, tmp_path):
    with pytest.raises(ValueError):
        gf.build_archive([], "t", out_dir=tmp_path / "out")
    with pytest.raises(FileNotFoundError):
        gf.build_archive([tmp_path / "nope.mp4"], "t", out_dir=tmp_path / "out")


def test_password_without_pyzipper_fails_loud(gf, tmp_path, monkeypatch):
    """设了密码但加密库不可用 → 报错（调用方会放弃上传，绝不能退化传明文）"""
    monkeypatch.setattr(gf, "pyzipper", None)
    assert gf.encryption_available() is False

    files = _make_files(tmp_path / "src", ["a.txt"])
    with pytest.raises(RuntimeError):
        gf.build_archive(files, "t", password="pw", out_dir=tmp_path / "out")
    # 不加密那一路不受影响
    assert gf.build_archive(files, "t", out_dir=tmp_path / "out").exists()


# ───────────────────── 上传：URI 直传 + S3 降级 ─────────────────────


def test_file_uri_keeps_unicode_and_uses_slashes(gf, tmp_path):
    target = tmp_path / "dir with space" / "群文件_120606.zip"
    target.parent.mkdir(parents=True)
    target.write_bytes(b"x")

    uri = gf._file_uri(target)
    assert uri.startswith("file:///")
    assert "\\" not in uri
    # 中文/空格保持原样（不做百分号转义，NapCat 侧直接当路径解析）
    assert uri.endswith("/dir with space/群文件_120606.zip")


async def test_s3_link_is_the_primary_channel(gf, tmp_path, monkeypatch):
    """默认通道就是 S3 链接（本环境本地直传必挂，不先浪费一次调用）"""
    calls: list = []
    link = "http://192.168.2.15:5246/PLANA/x.zip?sig=1"

    async def fake_call(file_value, group_id, name, folder_id=None):
        calls.append((file_value, group_id, name))

    monkeypatch.setattr(gf, "_call_upload", fake_call)
    monkeypatch.setattr(gf, "_s3_url", lambda path, policy: link)

    file = _make_files(tmp_path / "src", ["a.zip"])[0]
    assert await gf.upload_group_file(file, 123) is True
    assert calls == [(link, 123, "a.zip")]


async def test_s3_call_failure_falls_back_to_local(gf, tmp_path, monkeypatch):
    seen: list[str] = []
    link = "http://192.168.2.15:5246/PLANA/x.zip?sig=1"

    async def fake_call(file_value, group_id, name, folder_id=None):
        seen.append(file_value)
        if file_value.startswith("http"):
            raise RuntimeError("链接不可达")

    monkeypatch.setattr(gf, "_call_upload", fake_call)
    monkeypatch.setattr(gf, "_s3_url", lambda path, policy: link)

    file = _make_files(tmp_path / "src", ["a.zip"])[0]
    assert await gf.upload_group_file(file, 123) is True
    assert seen[0] == link
    assert seen[1] == gf._file_uri(file)


async def test_no_s3_link_falls_back_to_local(gf, tmp_path, monkeypatch):
    seen: list[str] = []

    async def fake_call(file_value, group_id, name, folder_id=None):
        seen.append(file_value)

    monkeypatch.setattr(gf, "_call_upload", fake_call)
    monkeypatch.setattr(gf, "_s3_url", lambda path, policy: "")

    file = _make_files(tmp_path / "src", ["a.zip"])[0]
    assert await gf.upload_group_file(file, 123) is True
    assert seen == [gf._file_uri(file)]


async def test_both_transports_fail(gf, tmp_path, monkeypatch):
    async def always_fail(*args, **kwargs):
        raise RuntimeError("nope")

    monkeypatch.setattr(gf, "_call_upload", always_fail)
    monkeypatch.setattr(gf, "_s3_url", lambda path, policy: "http://x/y.zip")

    file = _make_files(tmp_path / "src", ["a.zip"])[0]
    assert await gf.upload_group_file(file, 123) is False


async def test_missing_file_short_circuits(gf, tmp_path, monkeypatch):
    called = []
    monkeypatch.setattr(gf, "_call_upload", lambda *a, **kw: called.append(1))
    assert await gf.upload_group_file(tmp_path / "nope.zip", 123) is False
    assert called == []


# ───────────────────────── 投递编排 ─────────────────────────


def _record_uploads(gf, monkeypatch, path: Path, ok: bool = True) -> list:
    calls: list = []

    async def fake_upload(file_path, group_id, **kwargs):
        calls.append((str(file_path), group_id))
        return ok

    monkeypatch.setattr(gf, "upload_group_file", fake_upload)
    return calls


async def test_zip_mode_uploads_single_archive(gf, tmp_path, monkeypatch):
    archive = tmp_path / "pack.zip"
    archive.write_bytes(b"zip")
    calls = _record_uploads(gf, monkeypatch, archive)
    monkeypatch.setattr(
        gf, "build_archive", lambda *a, **kw: archive
    )

    files = _make_files(tmp_path / "src", ["a.txt", "b.txt"])
    ok = await gf.upload_group_files(files, 123, title="t", password="pw")
    assert ok is True
    assert calls == [(str(archive), 123)]


async def test_raw_mode_uploads_each_file(gf, tmp_path, monkeypatch):
    calls = _record_uploads(gf, monkeypatch, tmp_path)
    files = _make_files(tmp_path / "src", ["a.txt", "b.txt"])

    ok = await gf.upload_group_files(files, 123, zip_files=False)
    assert ok is True
    assert [c[0] for c in calls] == [str(p) for p in files]


async def test_raw_mode_prefixes_work_name_for_multi_files(gf, tmp_path, monkeypatch):
    """多图作品逐个传时，001.jpg 这类成员名要带上作品名（单文件不加）"""
    seen: list = []

    async def fake_upload(file_path, group_id, **kwargs):
        seen.append(kwargs.get("name"))
        return True

    monkeypatch.setattr(gf, "upload_group_file", fake_upload)

    images = _make_files(tmp_path / "src", ["001.jpg", "002.jpg"])
    await gf.upload_group_files(
        images, 123, zip_files=False, rel_dir="作者_9/海边日落"
    )
    assert seen == ["海边日落_001.jpg", "海边日落_002.jpg"]

    seen.clear()
    single = _make_files(tmp_path / "src2", ["作品.mp4"])
    await gf.upload_group_files(single, 123, zip_files=False, rel_dir="作者_9")
    assert seen == ["作品.mp4"]  # 单文件时文件名本身就是作品名，不再加前缀


async def test_pack_failure_skips_upload_entirely(gf, tmp_path, monkeypatch):
    """打包失败（例如缺 pyzipper）时不能退化成上传原文件"""
    calls = _record_uploads(gf, monkeypatch, tmp_path)

    def boom(*args, **kwargs):
        raise RuntimeError("pyzipper 未安装")

    monkeypatch.setattr(gf, "build_archive", boom)
    files = _make_files(tmp_path / "src", ["a.txt"])

    ok = await gf.upload_group_files(files, 123, title="t", password="pw")
    assert ok is False
    assert calls == []


async def test_empty_file_list(gf, tmp_path, monkeypatch):
    calls = _record_uploads(gf, monkeypatch, tmp_path)
    assert await gf.upload_group_files([], 123) is False
    assert calls == []