from __future__ import annotations

import json

import pytest

from v1.app import router


def _write_manifest(tmp_path, data: dict):
    manifest_file = tmp_path / "manifest.json"
    manifest_file.write_text(json.dumps(data), encoding="utf-8")
    return manifest_file


@pytest.mark.asyncio
async def test_check_updates_returns_none_when_manifest_missing(monkeypatch) -> None:
    monkeypatch.setattr(
        router, "_manifest_file_path", lambda: router.PROJECT_ROOT / "missing.json"
    )

    result = await router.check_updates(
        current_version_code=2,
        current_version_name="0.1.1",
        platform="android",
        channel="release",
    )

    assert result.has_update is False
    assert result.update_type == "none"
    assert result.latest_version_name == "0.1.1"
    assert result.latest_version_code == 2


@pytest.mark.asyncio
async def test_check_updates_returns_optional_update(monkeypatch, tmp_path) -> None:
    manifest_file = _write_manifest(
        tmp_path,
        {
            "releases": [
                {
                    "platform": "android",
                    "channel": "release",
                    "version_name": "0.1.2",
                    "version_code": 3,
                    "min_supported_version_code": 2,
                    "file_name": "social-app-android-v0.1.2+3-release.apk",
                    "release_notes": "优化体验",
                }
            ]
        },
    )
    monkeypatch.setattr(router, "_manifest_file_path", lambda: manifest_file)
    monkeypatch.setattr(
        router.config.app_version,
        "download_base_url",
        "https://download.example.com",
        raising=False,
    )
    monkeypatch.setattr(
        router.config.app_version,
        "release_path_prefix",
        "releases",
        raising=False,
    )

    result = await router.check_updates(
        current_version_code=2,
        current_version_name="0.1.1",
        platform="android",
        channel="release",
    )

    assert result.has_update is True
    assert result.update_type == "optional"
    assert result.latest_version_name == "0.1.2"
    assert result.latest_version_code == 3
    assert result.min_supported_version_code == 2
    assert (
        result.download_url
        == "https://download.example.com/releases/social-app-android-v0.1.2+3-release.apk"
    )


@pytest.mark.asyncio
async def test_check_updates_returns_required_update(monkeypatch, tmp_path) -> None:
    manifest_file = _write_manifest(
        tmp_path,
        {
            "releases": [
                {
                    "platform": "android",
                    "channel": "release",
                    "version_name": "0.1.3",
                    "version_code": 5,
                    "min_supported_version_code": 4,
                    "file_name": "social-app-android-v0.1.3+5-release.apk",
                }
            ]
        },
    )
    monkeypatch.setattr(router, "_manifest_file_path", lambda: manifest_file)
    monkeypatch.setattr(
        router.config.app_version,
        "download_base_url",
        "https://download.example.com",
        raising=False,
    )

    result = await router.check_updates(
        current_version_code=3,
        current_version_name="0.1.1",
        platform="android",
        channel="release",
    )

    assert result.has_update is True
    assert result.update_type == "required"
    assert result.min_supported_version_code == 4