set -eu
python3 - <<'PY'
from pathlib import Path
import hashlib,os,ast,json
root=Path('/opt/matrix-screen-controller')
p=root/'scripts/ota_worker.py'
original=p.read_bytes()
assert hashlib.sha256(original).hexdigest()=='3eec0eab7b2ce2bd43f11cccb0ba3063b2c820532d78abc2e06ba3823f8c33e5', 'worker changed; re-inspect before patching'
status=Path('/run/matrix-screen-controller/ota-status.json')
assert not status.exists() or not json.loads(status.read_text()).get('active'), 'OTA currently active'
s=original.decode('utf-8')
old='        frpc_bundle = self.extract_root / "system-dependencies/frpc"'
new='        frpc_bundle = software / "system-dependencies/frpc"\n        if not frpc_bundle.is_dir():\n            frpc_bundle = self.extract_root / "system-dependencies/frpc"'
assert s.count(old)==1
s=s.replace(old,new)
start=s.index('        self.backup_frpc_system()')
end=s.index('        self.run(["systemctl", "daemon-reload"]',start)
legacy=s[start:end]
replacement='        if (self.release / "scripts/ota_components.py").is_file():\n            # Candidate migration has already prepared the durable transaction.\n            pass\n        else:\n'
replacement += ''.join('    '+line+'\n' for line in legacy.splitlines())
s=s[:start]+replacement+s[end:]
ast.parse(s)
backup=Path('/var/tmp/matrix-ota110-validation/development-worker-before.py')
backup.write_bytes(original)
body=s.encode('utf-8')
temp=p.with_name('.ota_worker.compat.tmp')
with temp.open('wb') as f:
 f.write(body);f.flush();os.fsync(f.fileno())
os.chmod(temp,p.stat().st_mode & 0o777)
os.replace(temp,p)
print('development_worker_compatibility_patched=true')
print('software_version='+ (root/'VERSION').read_text().strip())
print('worker_sha256='+hashlib.sha256(p.read_bytes()).hexdigest())
print('FRP binary/config and running services unchanged')
PY