from pathlib import Path

import pytest

from syncvito.updater import GiteaUpdateService, UpdateFormatError, parse_version


def _release(version: str, *, draft: bool = False, prerelease: bool = False) -> dict[str, object]:
    return {
        "tag_name": f"v{version}",
        "name": f"SyncVito {version}",
        "body": "Änderungen",
        "html_url": f"https://gitea.example/releases/v{version}",
        "draft": draft,
        "prerelease": prerelease,
        "assets": [
            {
                "name": "SyncVito.exe",
                "browser_download_url": "https://gitea.example/download/SyncVito.exe",
                "size": 1234,
            },
            {
                "name": "SyncVito.exe.sha256",
                "browser_download_url": "https://gitea.example/download/SyncVito.exe.sha256",
                "size": 80,
            },
        ],
    }


def test_parse_version_accepts_stable_tags() -> None:
    assert parse_version("v1.2.3") == (1, 2, 3)
    assert parse_version("10.20.30") == (10, 20, 30)


def test_parse_version_rejects_prerelease() -> None:
    with pytest.raises(ValueError):
        parse_version("1.2.3-beta")


def test_check_selects_newest_stable_release(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
    releases = [_release("1.1.0"), _release("2.0.0", prerelease=True), _release("1.3.0")]
    monkeypatch.setattr(service, "_read_json", lambda _url: releases)

    update = service.check()

    assert update is not None
    assert update.version == "1.3.0"
    assert update.download_url.endswith("SyncVito.exe")


def test_check_returns_none_for_current_version(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
    service = GiteaUpdateService("1.3.0", base_url="https://gitea.example", update_directory=tmp_path)
    monkeypatch.setattr(service, "_read_json", lambda _url: [_release("1.3.0"), _release("1.2.0")])

    assert service.check() is None


def test_release_requires_checksum(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
    service = GiteaUpdateService("1.0.0", base_url="https://gitea.example", update_directory=tmp_path)
    release = _release("1.1.0")
    release["assets"] = [release["assets"][0]]  # type: ignore[index]
    monkeypatch.setattr(service, "_read_json", lambda _url: [release])

    with pytest.raises(UpdateFormatError, match="Prüfsumme|SyncVito.exe.sha256"):
        service.check()