"""Compile one standalone probe against the exact completed desktop dependencies."""
from pathlib import Path
from datetime import datetime, timezone
import hashlib
import json
import subprocess
import sys

root = Path(__file__).resolve().parent.parent
source, label, probe = sys.argv[1:4]
assert label.replace('-', '').isalnum()
probe = (root / probe).resolve()
assert probe.is_relative_to(root / '.local') and probe.suffix == '.rs'
gate = root / '.local/allocation-union-20260912'
result = json.loads((gate / ('full-' + source[:7] + '.result.json')).read_text())
assert result['source'] == source and result['exit'] == 0 and not result['changed_inputs']
manifest = json.loads((gate / result['inputs']).read_text())
for item in manifest['inputs']:
    if item['path'].startswith(('crates/oa-core/', '.cargo/')) or item['path'] in ['Cargo.toml', 'Cargo.lock', 'rust-toolchain.toml']:
        assert hashlib.sha256((root / item['path']).read_bytes()).hexdigest() == item['sha256'], item['path']
current_head = subprocess.check_output(['git', 'rev-parse', 'HEAD'], cwd=root).decode().strip()
fingerprints = root / 'target/debug/.fingerprint'
anchor = fingerprints / 'oa-desktop-e358a5ed59b1de41/test-bin-arcadia-studio.json'
desktop = json.loads(anchor.read_text())
dependencies = {}
for _, name, _, expected in desktop['deps']:
    if name not in ['oa_core', 'serde_json']:
        continue
    matches = []
    for path in fingerprints.glob('*/lib-' + name):
        if int.from_bytes(bytes.fromhex(path.read_text().strip()), 'little') == expected:
            suffix = path.parent.name.rsplit('-', 1)[1]
            rlib = root / 'target/debug/deps' / ('lib' + name + '-' + suffix + '.rlib')
            if rlib.is_file():
                matches.append(rlib)
    assert len(matches) == 1, (name, matches)
    dependencies[name] = matches[0]
out = root / '.local/native-qa' / label
assert not out.exists(), 'Do not overwrite identified experiment output'
out.mkdir()
command = ['rustc', '--edition=2024', '-D', 'warnings', '-C', 'linker=clang.exe', '-L', 'dependency=' + str(root / 'target/debug/deps')]
for name, rlib in dependencies.items():
    command += ['--extern', name + '=' + str(rlib)]
binary = out / (label + '.exe')
command += [str(probe), '-o', str(binary)]
start = datetime.now(timezone.utc).isoformat()
run = subprocess.run(command, cwd=root, capture_output=True)
(out / 'build.log').write_bytes(run.stdout + run.stderr)
files = [probe, anchor, *dependencies.values()]
if binary.exists():
    files.append(binary)
record = {'source': source, 'current_head': current_head, 'scope': 'Core-only standalone probe; core/configuration/lock inputs match identified full test run. Desktop changes do not become core evidence.', 'start': start, 'end': datetime.now(timezone.utc).isoformat(), 'command': command, 'exit': run.returncode,
          'files': [{'path': str(p.relative_to(root)), 'bytes': p.stat().st_size, 'sha256': hashlib.sha256(p.read_bytes()).hexdigest()} for p in files]}
(out / 'build.json').write_text(json.dumps(record, indent=2) + '\n', encoding='utf-8', newline='\n')
print((run.stdout + run.stderr).decode('utf-8', errors='replace'))
print(json.dumps({'source': source, 'output': str(out), 'exit': run.returncode, 'dependencies': {k: str(v) for k, v in dependencies.items()}}))
sys.exit(run.returncode)