"""Verify API facts against independently calculated persisted real data."""
import json
from decimal import Decimal
from pathlib import Path
from urllib.request import urlopen

root='http://127.0.0.1:8016/api/v1/sector-radar/'
d=json.load(urlopen(root+'sectors/concept/BK1147.DC/detail?trade_date=2026-09-04'))
assert d['status']=='success'
assert len(d['members'])==14
assert Decimal(d['pct_change'])==Decimal('1.82')
assert sum(Decimal(m['net_amount_yuan']) for m in d['members'])==Decimal('485456500')
assert sum(Decimal(m['active_buy_net_amount_yuan']) for m in d['members'])==Decimal('-255455700')
assert Decimal(d['summary']['amount']['metric_value'])==Decimal('4.854565')
# Storage uses 12 fractional digits for persisted metric observations.
assert abs(Decimal(d['summary']['ratio']['metric_value'])-Decimal('0.18560945649159168662'))<Decimal('1e-12')
assert d['history']['available_days']==1
assert len(d['history']['points'])==30
assert d['summary']['swing']['missing'] is True
assert len(d['leaders']['pct_change']['top'])==5
for view in ['amount','ratio']:
 r=json.load(urlopen(root+'rankings?sector_type=concept&view='+view+'&side=top&trade_date=2026-09-04'))['rows'][0]
 assert Decimal(r['pct_change'])==Decimal('1.82')
 assert Decimal(r['daily_net_amount_yuan'])==Decimal('485456500')
 assert r['on_list_count']==1
Path(__file__).with_name('verified-detail.json').write_text(json.dumps(d,ensure_ascii=False,indent=2))
print('PASS: real persisted SPD data matches detail and both ranking APIs; 14 members, 30 slots / 1 available day, absent swing remains null.')