from __future__ import annotations

import json
import subprocess
import sys


def _run(*args: str) -> subprocess.CompletedProcess:
    return subprocess.run(
        [sys.executable, "-m", "metin_release", *args],
        capture_output=True,
        text=True,
    )


def test_version_flag():
    r = _run("--version")
    assert r.returncode == 0
    assert "metin-release" in r.stdout


def test_help_top_level():
    r = _run("--help")
    assert r.returncode == 0
    assert "release" in r.stdout


def test_help_release_inspect():
    r = _run("release", "inspect", "--help")
    assert r.returncode == 0
    assert "--source" in r.stdout


def test_unknown_subcommand_exits_nonzero():
    r = _run("release", "does-not-exist")
    assert r.returncode != 0


def test_inspect_json_output_is_pure_json(tmp_path):
    (tmp_path / "Metin2.exe").write_text("x")
    (tmp_path / "Metin2Launcher.exe").write_text("y")
    r = _run("--json", "release", "inspect", "--source", str(tmp_path))
    assert r.returncode == 0
    envelope = json.loads(r.stdout)  # must parse cleanly
    assert envelope["ok"] is True
    assert envelope["command"] == "release inspect"
    assert envelope["stats"]["file_count"] == 2


def test_inspect_human_mode_emits_json_on_stdout_and_summary_on_stderr(tmp_path):
    (tmp_path / "Metin2.exe").write_text("x")
    r = _run("release", "inspect", "--source", str(tmp_path))
    assert r.returncode == 0
    envelope = json.loads(r.stdout)
    assert envelope["ok"] is True
    assert "release inspect" in r.stderr