import asyncio
from pathlib import Path

from starlette.requests import Request

import app.gateway.routers.artifacts as artifacts_router


def test_get_artifact_reads_utf8_text_file_on_windows_locale(tmp_path, monkeypatch) -> None:
    artifact_path = tmp_path / "note.txt"
    text = "Curly quotes: \u201cutf8\u201d"
    artifact_path.write_text(text, encoding="utf-8")

    original_read_text = Path.read_text

    def read_text_with_gbk_default(self, *args, **kwargs):
        kwargs.setdefault("encoding", "gbk")
        return original_read_text(self, *args, **kwargs)

    monkeypatch.setattr(Path, "read_text", read_text_with_gbk_default)
    monkeypatch.setattr(artifacts_router, "resolve_thread_virtual_path", lambda _thread_id, _path: artifact_path)

    request = Request({"type": "http", "method": "GET", "path": "/", "headers": [], "query_string": b""})
    response = asyncio.run(artifacts_router.get_artifact("thread-1", "mnt/user-data/outputs/note.txt", request))

    assert bytes(response.body).decode("utf-8") == text
    assert response.media_type == "text/plain"