import json, os
from collections import Counter
B = os.path.dirname(os.path.abspath(__file__))
o = json.load(open(os.path.join(B, 'mcp_orders_input.json'), encoding='utf-8'))
print('orders n =', len(o))
dates = sorted(x.get('创建时间', '')[:10] for x in o if x.get('创建时间'))
print('range:', dates[0], '~', dates[-1])
c = Counter(d[:7] for d in dates)
for k in sorted(c):
    print('  ', k, c[k])
print('amount sample:', [x.get('金额') for x in o[:3]])