"""Export the observed startup frontier; never equates discovery with runnable code."""
import json
import re
from pathlib import Path

bundle = json.loads(Path('evidence/factorio-functions-final.json').read_text())
record = next(r for r in bundle['records'] if r['operation'] == 'analyze_function'
              and r['parameters']['procedure'] == '0x100161584')
native = record['normalized_result']
callees = []
for callee in native['callees']:
    symbol = callee['name']
    route = 'exclude-optional-steam' if 'Steam' in symbol else 'host-abi-adapter' if symbol.startswith('imp___stubs') else 'pending-lift'
    callees.append({'address': callee['address'], 'symbol': symbol,
                    'planned_route': route, 'route_authority': 'analyst planning from symbol identity'})
indirect = [line for line in native['assembly'] if re.search(r': blr\s', line)]
result = {'status': 'not-runnable', 'root': native['procedure']['name'],
          'root_address': '0x100161584', 'evidence_id': record['evidence_id'],
          'observed_direct_callees': len(callees), 'observed_basic_blocks': len(native['basic_blocks']),
          'observed_indirect_call_sites': indirect, 'callees': callees,
          'limitations': ['This is one observed function frontier, not a transitive closure.',
                         'Hopper does not expose complete body ranges or all indirect targets.',
                         'The straight-line lifter cannot yet compile this startup function.',
                         'Graphical startup includes inlined Steam initialization; changing the factory alone is insufficient.']}
out = Path('build/startup'); out.mkdir(parents=True, exist_ok=True)
(out / 'frontier.json').write_text(json.dumps(result, indent=2) + '\n')
print(json.dumps({key: result[key] for key in ['status', 'root_address', 'evidence_id',
                 'observed_direct_callees', 'observed_basic_blocks']}, indent=2))