from __future__ import annotations

import argparse
import json
from pathlib import Path

import pytest

from metin_release.commands import build_manifest
from metin_release.errors import ValidationError
from metin_release.workspace import Context


def _ctx(script: Path) -> Context:
    return Context(make_manifest_script=script)


@pytest.mark.skipif(
    not Path("/home/jann/metin/repos/m2dev-client/scripts/make-manifest.py").is_file(),
    reason="real make-manifest.py not available",
)
def test_build_manifest_real_script(tiny_client: Path, tmp_path: Path, make_manifest_script: Path):
    out = tmp_path / "manifest.json"
    ctx = _ctx(make_manifest_script)
    args = argparse.Namespace(
        source=tiny_client,
        version="2026.04.14-1",
        out=out,
        previous=None,
        notes=None,
        launcher="Metin2Launcher.exe",
        created_at="2026-04-14T00:00:00Z",
    )
    result = build_manifest.run(ctx, args)
    assert out.is_file()
    manifest = json.loads(out.read_text())
    assert manifest["version"] == "2026.04.14-1"
    assert manifest["launcher"]["path"] == "Metin2Launcher.exe"
    assert len(manifest["files"]) >= 3  # Metin2.exe, readme.txt, subdir/*
    stats = result.data["stats"]
    assert stats["file_count"] == len(manifest["files"]) + 1
    assert stats["blob_count"] >= 1
    assert stats["total_bytes"] > 0


def test_build_manifest_missing_script(tiny_client: Path, tmp_path: Path):
    ctx = _ctx(tmp_path / "nope.py")
    args = argparse.Namespace(
        source=tiny_client,
        version="v1",
        out=tmp_path / "manifest.json",
        previous=None,
        notes=None,
        launcher="Metin2Launcher.exe",
        created_at=None,
    )
    with pytest.raises(ValidationError):
        build_manifest.run(ctx, args)


def test_build_manifest_missing_source(tmp_path: Path, make_manifest_script: Path):
    ctx = _ctx(make_manifest_script)
    args = argparse.Namespace(
        source=tmp_path / "nope",
        version="v1",
        out=tmp_path / "manifest.json",
        previous=None,
        notes=None,
        launcher="Metin2Launcher.exe",
        created_at=None,
    )
    with pytest.raises(ValidationError):
        build_manifest.run(ctx, args)