154 lines
9.5 KiB
Python
154 lines
9.5 KiB
Python
"""Resolve same-conversation quote edits and return local facts without model I/O."""
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from decimal import Decimal, InvalidOperation
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import re
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import sqlite3
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from .db import connect
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from .quote_data import load_book, postcode_fee
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from .quote_engine import US, QUOTE_WORDS, parse_intent, is_followup, variants, render_rates
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from .quote_intent import resumes_quote
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from .customer_faq import is_acknowledgement
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def previous_quote_intents(conv_id,codes,resume=False):
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"""Read the current quote back to its topic boundary, without a turn cutoff."""
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earlier_intents=[]
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resume_updates=[]
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if conv_id:
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connection=connect()
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try:
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recent=connection.execute("SELECT content FROM messages WHERE conv_id=? AND role='user' ORDER BY id DESC",(conv_id,))
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for (previous,) in recent:
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if is_acknowledgement(previous):continue
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earlier=parse_intent(previous,codes)
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if resumes_quote(previous):
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earlier_intents.append(earlier)
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# Retain edits made after an explicit return while crossing other topics.
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resume_updates=earlier_intents[:]
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resume=True
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continue
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boundary=bool(re.search(r'理赔|赔偿|破损|丢失|退件|投诉|查单|轨迹|签收|换个话题|另外问',previous))
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quote_root=bool((earlier['country'] or earlier['warehouse'] or earlier.get('unknown_warehouses'))
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and QUOTE_WORDS.search(previous))
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if quote_root and not re.search(r'理赔|赔偿|破损|丢失|退件|投诉|查单|轨迹|签收',previous):
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boundary=False
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boundary=boundary or bool(re.search(r'订单|运单|入仓码',previous) and not re.search(r'报价|海运|海派|海卡|空运',previous))
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candidate=(QUOTE_WORDS.search(previous) or US.search(previous) or is_followup(previous,earlier) or
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any(earlier.get(key) for key in ('weight','dims','cbm','warehouse','postal')))
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if boundary or not candidate:
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if not resume:break
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earlier_intents=resume_updates[:]
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continue
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if earlier['country']=='other':break
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earlier_intents.append(earlier)
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if not is_followup(previous,earlier):break
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finally:
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connection.close()
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return earlier_intents
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def intent_with_context(message, conv_id, book):
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from .quote_context import merge_intent
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codes = {row['code'] for row in book['warehouses']}
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codes.update(value.upper() for rate in book['rates'] for value in rate['destinations'])
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intent = parse_intent(message,codes)
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earlier_intents=previous_quote_intents(conv_id,codes,resume=resumes_quote(message)) if is_followup(message,intent) else []
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if intent.get('quantity_change') and not earlier_intents:
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intent['errors'].append(intent['quantity_question'])
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if intent.get('metal_weight_update') and not earlier_intents:
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intent['metal_chargeable_weight']=None
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intent['errors'].append('请确认铁铝部分的计费重，不能把毛重直接当作计费重。')
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if earlier_intents:
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state=earlier_intents[-1]
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if state.get('metal_weight_update'):state['metal_chargeable_weight']=None
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for update in list(reversed(earlier_intents[:-1]))+[intent]:
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state=merge_intent(update,state)
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intent=state
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if (intent['warehouse'] or intent.get('unknown_warehouses')) and intent['country'] is None:
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intent['country']='US'
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return intent
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def answer_quote(message, conv_id):
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if re.search(r'理赔|赔偿|破损|丢失|退件|投诉|查单|轨迹|签收', message):
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return None
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# Avoid a new read for ordinary chat; short followups need their local context.
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from .shipping_faq import preparation_topic
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if not (US.search(message) or QUOTE_WORDS.search(message) or preparation_topic(message) or conv_id or
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re.search(r'(?<![A-Za-z0-9])[A-Za-z]{2,4}[0-9](?![A-Za-z0-9])', message)):
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return None
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try:
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book = load_book()
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if not book:
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return None
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intent = intent_with_context(message, conv_id, book)
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if intent['country'] != 'US':
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if intent.get('quantity_change'):
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if intent['quantity_change']['kind']=='volume':
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return {'t':'请先提供原来的总体积和目的国家、目的仓，再说明增减量。'}
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return {'t':'请先提供原来的总重、箱数和目的国家，再说明增减量。'}
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if resumes_quote(message):
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return {'t':'请确认要继续报价的目的国家、重量和渠道，我再核对对应条件。'}
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if intent.get('mode')=='clarify_route':
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return {'t':'请先提供目的国家、重量和所需渠道，再继续核对具体方案。'}
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if intent.get('weight_unit'):
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return {'t':'请提供重量数值和目的国家，例如800KG发往美国。'}
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if intent['country'] is None and intent.get('mode')=='preparation':
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return {'t':'请先确认目的国家和所选渠道，我再为您核对交仓、标签或发货资料要求。'}
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return None
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if intent.get('tax_pending') and '请明确选择包税或不包税方案。' not in intent['errors']:
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intent['errors'].append('请明确选择包税或不包税方案。')
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if intent.get('choice_pending') and '请指定希望使用的渠道，或选择最快、最慢、最便宜方案。' not in intent['errors']:
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intent['errors'].append('请指定希望使用的渠道，或选择最快、最慢、最便宜方案。')
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if intent.get('errors'):
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return {'t':'\n'.join(intent['errors'])}
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if intent.get('mode')=='clarify_route':
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return {'t':'请指定方案名称，例如美森正班或普船，或说“最快”“最慢”“最便宜”，我按当前货物条件继续核算。'}
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if intent.get('mode')=='difference':
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if intent.get('selection') not in ('fastest','slowest','speed_compare'):
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return {'t':'请明确要比较的方案，可直接问“最快和最慢相差多少”，我按当前货物条件核算差额。'}
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intent['selection']='speed_compare'
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if intent.get('unknown_warehouses'):
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return {'t':'未找到目的仓码 '+ '、'.join(intent['unknown_warehouses'])+'，请核对仓码，或提供5位美国邮编继续查询。'}
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if not (QUOTE_WORDS.search(message) or is_followup(message,intent) or
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any(intent.get(key) for key in ('weight','dims','cbm','warehouse','postal'))):
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return None
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for key in ('weight','cbm'):
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if intent[key] is not None and not (Decimal(0) < Decimal(intent[key]) <= Decimal(1000000)):
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return {'t':'请提供大于 0 的有效重量或体积。'}
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if intent['boxes'] is not None and not 0 < intent['boxes'] <= 10000:
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return {'t':'请提供有效的货物箱数。'}
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dimensions=[intent['dims']] if intent['dims'] else []
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dimensions += [piece['dims'] for piece in intent.get('packages') or [] if piece.get('dims')]
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if any(not 0 < value <= 100000 for dims in dimensions for value in dims):
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return {'t':'请提供大于 0 的有效长宽高。'}
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if intent['air_only']:
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return {'t':'当前美国报价资料包含美森、EXX、合德及普船的海卡、海铁和海派。发我目的仓码或邮编、重量，可以列出这些线路的价格；空运费率当前资料没有列出，空运承运条件也需单独确认。'}
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from .quote_answers import answer_business
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preparation=None
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if intent.get('mode')=='preparation':
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from .shipping_faq import answer_preparation
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preparation=answer_preparation(intent,book)
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if preparation_topic(message)!='schedule' or not re.search(r'\d+\s*(?:KG|公斤|千克|克|吨|方|CBM)',intent['text'],re.I):
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return {'t':preparation}
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intent['mode']='cheapest' if re.search(r'最便宜|最划算|最低价',message) else 'quote'
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business=answer_business(intent,book)
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if business is not None:return {'t':business}
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destinations = variants(intent,book)
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fees = []
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for destination in destinations:
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postal = destination['postal']
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if postal and (postal[:3] in ('006','007','008','009','966','967','968','969','995','996','997','998','999') or postal=='89124'):
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return {'t':f'当前海派资料不接收邮编 {postal} 的地址，请提供其他目的仓码或联系人工确认可用线路。'}
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fees.append(postcode_fee(book['id'],postal) if postal else None)
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reply=render_rates(intent,book,destinations,fees)
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if intent.get('mode')=='total':
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reply+='\n以上为已提供条件下可计算的运费，各方案按所列包税/不包税方式分别核算；目的仓、箱规及未确定附加费需核实后才能确认最终应付总价。'
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if intent.get('mode')=='cheapest' and re.search(r'便宜一?点|折扣|优惠|打折',message):
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reply+='\n以上按当前价表比较，折扣或合作价格需人工确认，尚未修改单价。'
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return {'t':reply+('\n'+preparation if preparation else '')}
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except (sqlite3.Error, ValueError, KeyError, TypeError, InvalidOperation):
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return {'t':'报价数据暂时无法读取，请稍后重试。'}
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