import json
from collections import defaultdict

d = json.load(open(r'F:\seismic_webapp\inventory.json'))

by_channel = defaultdict(lambda: {'data': 0, 'aux': 0, 'bumpers': set()})
for f in d:
    ch = f['channel'] or 'unknown'
    if f['file_type'] == 'data':
        by_channel[ch]['data'] += 1
    else:
        by_channel[ch]['aux'] += 1
    if f['bumper_id']:
        by_channel[ch]['bumpers'].add(f['bumper_id'])

print('=== RESUME PAR CANAL ===')
print('Canal     DATA   AUX  Bumpers')
print('-' * 35)
for ch in ['ch0', 'ch1', 'ch2', 'ch3', 'ch5', 'ch6', 'ch7', 'ch15', 'unknown']:
    if ch in by_channel:
        s = by_channel[ch]
        total = s['data'] + s['aux']
        print(f'{ch:8}  {s["data"]:4}  {s["aux"]:4}    {len(s["bumpers"]):3}')

# Stats globales
total_data = sum(s['data'] for s in by_channel.values())
total_aux = sum(s['aux'] for s in by_channel.values())
all_bumpers = set()
for s in by_channel.values():
    all_bumpers.update(s['bumpers'])

print('-' * 35)
print(f'TOTAL     {total_data:4}  {total_aux:4}    {len(all_bumpers):3}')

errors = [f for f in d if f['error']]
print(f'\nErreurs de lecture: {len(errors)} fichiers')
if errors:
    for e in errors[:5]:
        print(f'  - {e["filename"][:50]}...')