from pathlib import Path
import hashlib
import json
import subprocess

root = Path(__file__).resolve().parent
target = Path('E:/pipe-ner-server').resolve()
assert str(target).lower().replace('\\', '/') == 'e:/pipe-ner-server'
manifest = json.loads((root / 'manifest.json').read_text(encoding='utf-8'))
for entry in manifest:
    path = target / entry['path']
    digest = hashlib.sha256(path.read_bytes()).hexdigest() if path.exists() else None
    if digest != entry['beforeSha256']:
        raise SystemExit('Concurrent modification; patch not applied: ' + entry['path'])
    staged = root / entry['path']
    if hashlib.sha256(staged.read_bytes()).hexdigest() != entry['afterSha256']:
        raise SystemExit('Staged file changed; rebuild manifest: ' + entry['path'])
patch = str(root / 'point-status-eight-buckets.patch')
# Inherit stdio; no named-pipe output capture under Windows sandbox.
subprocess.run(['git', 'apply', '--check', '--whitespace=error', patch], cwd=target, check=True)
subprocess.run(['git', 'apply', '--whitespace=error', patch], cwd=target, check=True)
for entry in manifest:
    final = (target / entry['path']).read_bytes().replace(b'\r\n', b'\n')
    expected = (root / entry['path']).read_bytes().replace(b'\r\n', b'\n')
    assert final == expected, entry['path']
print('Applied and verified ' + str(len(manifest)) + ' backend files; no build/debug/test commands executed.')