"""P1 回归：按文件夹解析版本。"""
import sys, os
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from pathlib import Path
from mcfold.version import list_versions, resolve_version, parse_version_json
import json, tempfile

def mk(d, vid, obj):
    p = Path(d)/"versions"/vid; p.mkdir(parents=True)
    (p/f"{vid}.json").write_text(json.dumps(obj))

def test_vanilla():
    with tempfile.TemporaryDirectory() as d:
        mk(d, "1.20.1", {"id":"1.20.1","mainClass":"net.minecraft.client.main.Main","assets":"5","libraries":[{}]*88})
        vs = list_versions(d)
        assert len(vs)==1, vs
        v = vs[0]
        assert v.mc_version=="1.20.1" and v.loader=="vanilla" and not v.is_modded
        print("  ✓ vanilla: 1.20.1 -> loader=vanilla, assets=5, libs=88")

def test_forge_inherits():
    """核心用例：forge 的 id 不能当协议版本，必须走 inheritsFrom。"""
    with tempfile.TemporaryDirectory() as d:
        mk(d, "1.20.1-forge-47.4.0", {
            "id":"1.20.1-forge-47.4.0","inheritsFrom":"1.20.1",
            "mainClass":"io.github.zekerzhayard.forgewrapper.installer.Main"})
        v = list_versions(d)[0]
        assert v.mc_version=="1.20.1", v.mc_version      # ← 归一化
        assert v.version_id=="1.20.1-forge-47.4.0"
        assert v.loader=="forge" and v.is_modded
        print("  ✓ forge: id=1.20.1-forge-47.4.0 -> mc_version=1.20.1, loader=forge")

def test_fabric_inherits():
    with tempfile.TemporaryDirectory() as d:
        mk(d, "fabric-loader-0.19.5-1.20.1", {
            "id":"fabric-loader-0.19.5-1.20.1","inheritsFrom":"1.20.1",
            "mainClass":"net.fabricmc.loader.impl.launch.knot.KnotClient"})
        v = list_versions(d)[0]
        assert v.mc_version=="1.20.1" and v.loader=="fabric", (v.mc_version,v.loader)
        print("  ✓ fabric: -> mc_version=1.20.1, loader=fabric")

def test_prefer_and_vanilla_priority():
    with tempfile.TemporaryDirectory() as d:
        mk(d, "1.20.1", {"id":"1.20.1","mainClass":"net.minecraft.client.main.Main"})
        mk(d, "1.20.1-forge-47.4.0", {"id":"1.20.1-forge-47.4.0","inheritsFrom":"1.20.1",
            "mainClass":"io.github.zekerzhayard.forgewrapper.installer.Main"})
        # 不指定时 prior vanilla（最稳）
        assert resolve_version(d).loader=="vanilla"
        # 指定时按指定来
        assert resolve_version(d, "1.20.1-forge-47.4.0").loader=="forge"
        print("  ✓ 默认优先 vanilla；prefer 可显式选 forge")

def test_garbage_skipped():
    """半途安装的残留目录（无 json）必须跳过，而不是崩。"""
    with tempfile.TemporaryDirectory() as d:
        (Path(d)/"versions"/"broken").mkdir(parents=True)
        mk(d, "1.20.1", {"id":"1.20.1","mainClass":"net.minecraft.client.main.Main"})
        vs = list_versions(d)
        assert len(vs)==1, [v.version_id for v in vs]
        assert resolve_version(d) is not None
        print("  ✓ 无 json 的残留目录被跳过")

def test_real_install():
    """对真实 mcview 安装目录验证（若存在）。"""
    real = "/home/newqqagent/mcview/store/vanilla-1.20.1"
    if not Path(real).is_dir(): print("  - 真实安装目录不存在，跳过"); return
    v = resolve_version(real)
    assert v is not None
    print(f"  ✓ 真实安装: {v.version_id} -> mc={v.mc_version} loader={v.loader} libs={v.libs_count} jar={'有' if v.jar_path else '无'}")

if __name__=="__main__":
    for fn in [test_vanilla, test_forge_inherits, test_fabric_inherits,
               test_prefer_and_vanilla_priority, test_garbage_skipped, test_real_install]:
        fn()
    print("\nP1 版本解析：全部通过")