"""Create an isolated Windows acceptance workspace and launch its identified GUI."""
from pathlib import Path
import hashlib
import json
import os
import shutil
import subprocess
import sys
from datetime import datetime, timezone

root = Path(__file__).resolve().parent.parent
trial = root / '.local/native-qa/canvas-20260911'
mode = sys.argv[1]
if mode == 'prepare':
    assert not trial.exists(), 'Do not overwrite a native trial'
    trial.mkdir()
    records = []
    for name, rel in {
        'scenario': 'harness/fixtures/scenario-authoring/base',
        'process': 'harness/fixtures/source7-native/base',
        'staged-source': 'harness/fixtures/staged-source-authoring/base',
    }.items():
        original = root / rel
        assert original.is_dir()
        shutil.copytree(original, trial / name)
        for file in sorted(original.rglob('*')):
            if file.is_file():
                path = file.relative_to(original)
                raw = file.read_bytes()
                assert (trial / name / path).read_bytes() == raw
                records.append({'path': f'{name}/{path.as_posix()}', 'source': f'{rel}/{path.as_posix()}', 'bytes': len(raw), 'sha256': hashlib.sha256(raw).hexdigest()})
    for folder in ['profile/Desktop', 'profile/Documents', 'profile/AppData/Local', 'profile/AppData/Roaming', 'temp', 'evidence']:
        (trial / folder).mkdir(parents=True, exist_ok=True)
    (trial / 'preparation.json').write_text(json.dumps({'prepared_utc': datetime.now(timezone.utc).isoformat(), 'files': records}, indent=2) + '\n', encoding='utf-8', newline='\n')
    print(json.dumps({'trial': str(trial), 'byte_identical_fixture_files': len(records)}))
elif mode == 'launch':
    assert (trial / 'preparation.json').is_file()
    assert not (trial / 'launch.json').exists(), 'Use a new explicit trial for another launch'
    binary = Path(sys.argv[2]).resolve()
    assert binary.is_relative_to(root / '.local/native-qa') and binary.name == 'arcadia-studio.exe'
    assert binary.is_file() and (binary.parent / 'manifest.json').is_file()
    profile = trial / 'profile'
    env = {key: os.environ[key] for key in ['SystemRoot', 'WINDIR', 'SystemDrive', 'ProgramData', 'ALLUSERSPROFILE', 'PUBLIC', 'COMSPEC', 'PATHEXT', 'NUMBER_OF_PROCESSORS', 'PROCESSOR_ARCHITECTURE', 'OS'] if key in os.environ}
    windows = Path(env['SystemRoot'])
    env.update({'PATH': os.pathsep.join(map(str, [binary.parent, windows / 'System32', windows])), 'USERPROFILE': str(profile), 'LOCALAPPDATA': str(profile / 'AppData/Local'), 'APPDATA': str(profile / 'AppData/Roaming'), 'TEMP': str(trial / 'temp'), 'TMP': str(trial / 'temp')})
    with (trial / 'stdout.log').open('wb') as out, (trial / 'stderr.log').open('wb') as err:
        process = subprocess.Popen([str(binary)], cwd=trial, env=env, stdin=subprocess.DEVNULL, stdout=out, stderr=err, creationflags=subprocess.CREATE_NO_WINDOW)
    record = {'started_utc': datetime.now(timezone.utc).isoformat(), 'pid': process.pid, 'binary': str(binary), 'bytes': binary.stat().st_size, 'sha256': hashlib.sha256(binary.read_bytes()).hexdigest(), 'private_profile': str(profile), 'acceptance': 'Launch requested; native behavior not yet verified.'}
    (trial / 'launch.json').write_text(json.dumps(record, indent=2) + '\n', encoding='utf-8', newline='\n')
    print(json.dumps(record))
else:
    raise SystemExit('Expected prepare or launch')