from pathlib import Path
import difflib
import hashlib
import json
root = Path(__file__).parent
source = Path('E:/pipe-ner-server')
patch = []
manifest = []
for staged in sorted((root / 'pipe-network-service').rglob('*.java')):
    rel = staged.relative_to(root)
    target = source / rel
    before_bytes = target.read_bytes() if target.exists() else None
    before = before_bytes.decode('utf-8').replace('\r\n', '\n') if before_bytes is not None else ''
    after = staged.read_text(encoding='utf-8')
    if before == after:
        continue
    baseline = root / 'baseline' / rel
    baseline.parent.mkdir(parents=True, exist_ok=True)
    baseline.write_text(before, encoding='utf-8', newline='\n')
    diff = list(difflib.unified_diff(before.splitlines(keepends=True), after.splitlines(keepends=True),
            fromfile='a/' + rel.as_posix() if before_bytes is not None else '/dev/null',
            tofile='b/' + rel.as_posix()))
    patch.extend(diff)
    manifest.append({'path': rel.as_posix(), 'beforeSha256': hashlib.sha256(before_bytes).hexdigest() if before_bytes is not None else None,
                     'afterSha256': hashlib.sha256(staged.read_bytes()).hexdigest(),
                     'added': sum(line.startswith('+') and not line.startswith('+++') for line in diff),
                     'removed': sum(line.startswith('-') and not line.startswith('---') for line in diff)})
(root / 'point-status-eight-buckets.patch').write_text(''.join(patch), encoding='utf-8', newline='\n')
(root / 'manifest.json').write_text(json.dumps(manifest, ensure_ascii=False, indent=2), encoding='utf-8')
print(f'{len(manifest)} files, +{sum(row["added"] for row in manifest)} / -{sum(row["removed"] for row in manifest)}')
for row in manifest:
    print(f'+{row["added"]} -{row["removed"]} {row["path"]}')