tests/run_nlu_test.py

from tools.nlu_tool import extract_intent_and_slots
from tools.scheduler import find_common_slots, get_operator_availability
import datetime
import pytz
from app import propose_slots

print('NLU test 1:')
r1 = extract_intent_and_slots('I can pay ¥30000 by next Friday')
print(r1)
print('parsed date_by_when:', r1.get('slots', {}).get('date_by_when'))
print('\nNLU test 2:')
print(extract_intent_and_slots('I need to talk to an operator'))

print('\nScheduler sample operator slots (first 3):')
ops = get_operator_availability()
for s in ops[:3]:
    print(s.isoformat())

# Example customer window for find_common_slots (timezone-aware Asia/Tokyo)
TZ = pytz.timezone('Asia/Tokyo')
now = datetime.datetime.now(TZ)
start = TZ.localize(datetime.datetime(now.year, now.month, now.day, 9)) + datetime.timedelta(days=2)
end = TZ.localize(datetime.datetime(now.year, now.month, now.day, 12)) + datetime.timedelta(days=2)
slots = find_common_slots([{'start': start, 'end': end}])
print('\nCommon slots:')
for s in slots:
    print(s)

print('\nPropose slots using preferred window ("tomorrow 09:00" to "tomorrow 12:00")')
prefs = [{'start': 'tomorrow 09:00', 'end': 'tomorrow 12:00'}]
print(propose_slots(prefs))