213 lines
11 KiB
Python
213 lines
11 KiB
Python
"""Bounded quote matching and Decimal arithmetic, independent of Flask/models."""
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from decimal import Decimal, ROUND_HALF_UP
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import re
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from .pricing import dims_to_cm
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from .quote_intent import US, QUOTE_WORDS, parse_intent, is_followup
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def broad_zone(postal):
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if not postal:
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return None
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if postal.startswith(('8','9')):
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return '美西'
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if postal.startswith('46') or postal[0] in '0123':
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return '美东'
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return '美中'
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def variants(intent, book):
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if intent.get('allocations'):
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return [{**destination,'allocation':part} for part in intent['allocations']
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for destination in variants({**intent,'allocations':None,'warehouse':part['warehouse'],
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'warehouses':None,'postal':None},book)]
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if len(intent.get('warehouses') or [])>1:
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return [variant for warehouse in intent['warehouses'] for variant in
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variants({**intent,'warehouse':warehouse,'warehouses':None,'postal':None},book)]
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if not intent['warehouse'] and len(intent.get('zones') or [])>1:
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return [variant for zone in intent['zones'] for variant in
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variants({**intent,'zone':zone,'zones':None},book)]
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warehouse = intent['warehouse']
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found = [r for r in book['warehouses'] if r['code'] == warehouse] if warehouse else []
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zoned = [r for r in found if r['zone']]
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if zoned:
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unique = {}
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for row in zoned:
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postal = intent['postal'] or row['postal'][:5]
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key = (row['zone'], postal)
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unique.setdefault(key, {'label':f"{warehouse} · {row['zone']}", 'postal':postal,
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'zone':broad_zone(postal), 'warehouse':warehouse})
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return list(unique.values())
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postal = intent['postal']
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if not postal and found:
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match = re.search(r'(?<![0-9])([0-9]{5})(?:-[0-9]{4})?(?![0-9])', found[0]['address'])
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postal = match.group(1) if match else None
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zone = intent['zone']
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if zone and zone[0] in '东中西':
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zone = {'东':'美东','中':'美中','西':'美西'}[zone[0]]
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return [{'label':warehouse or postal or zone or '美国', 'postal':postal, 'zone':zone or broad_zone(postal), 'warehouse':warehouse}]
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def quantity(intent, rate):
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real = Decimal(intent['weight'] or '0')
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volume = Decimal(intent['cbm']) if intent['cbm'] else None
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if volume is None and intent['dims']:
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cm = [Decimal(str(value)) for value in dims_to_cm(intent['dims'], intent['dim_unit'])]
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volume = cm[0]*cm[1]*cm[2]/Decimal(1000000)*(intent['boxes'] or 1)
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package_charge=Decimal(0)
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if intent.get('packages'):
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package_volume=Decimal(0)
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all_dimensions=True
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for package in intent['packages']:
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dims=package.get('dims') or intent['dims']
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cm=[Decimal(str(value)) for value in dims_to_cm(dims,package.get('dim_unit') or intent['dim_unit'])] if dims else None
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box_volume=cm[0]*cm[1]*cm[2]/1000000 if cm else Decimal(0)
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all_dimensions=all_dimensions and bool(cm)
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package_volume+=box_volume*package['count']
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piece=max(Decimal(package['weight']),box_volume*1000000/6000 if rate['kind']=='parcel' else box_volume*167)
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package_charge+=max(piece,Decimal(12) if rate['kind']=='parcel' else Decimal(0))*package['count']
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if all_dimensions and not intent['cbm']:volume=package_volume
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if rate['unit'] == 'cbm':
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if volume is None:
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return None
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result=max(volume, real/Decimal(363))
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if rate['service']=='洛杉矶普船海卡':
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result=result.quantize(Decimal('.01'),rounding=ROUND_HALF_UP)
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return result if result>0 else None
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volume_weight = ((volume or Decimal(0))*1000000/6000 if rate['kind']=='parcel'
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else (volume or Decimal(0))*167)
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charge = max(real, volume_weight,package_charge)
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if rate['kind'] == 'parcel':
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charge = max(charge, Decimal(12)*(intent['boxes'] or 1))
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return charge if real or volume else None
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def match_rates(intent, book, variant):
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selected = []
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kinds = intent['kinds'] or (['truck','parcel'] if variant['warehouse'] else ['parcel'])
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for rate in book['rates']:
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if rate['kind'] not in kinds or (intent['origin'] and intent['origin'] != rate['origin']):
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continue
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if intent['services'] and not any(name in rate['service'] for name in intent['services']):
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continue
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if intent['tax'] and rate['tax'] != intent['tax']:
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continue
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if rate['kind'] == 'truck':
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if not variant['warehouse'] or variant['warehouse'] not in [value.upper() for value in rate['destinations']]:
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continue
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elif variant['zone'] and rate['zone'] != variant['zone']:
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continue
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selected.append(rate)
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groups = {}
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for rate in selected:
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key = (rate['service'],rate['origin'],rate['zone'],rate['unit'],rate['tax'])
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charge = quantity(intent,rate)
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if rate['kind'] == 'parcel' and Decimal(rate['min_weight']) > (charge or Decimal(12)):
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continue
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if key not in groups or Decimal(rate['min_weight']) > Decimal(groups[key]['min_weight']):
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groups[key] = rate
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return list(groups.values())
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def number(value, places=2):
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return format(Decimal(value).quantize(Decimal(10)**-places, rounding=ROUND_HALF_UP), 'f').rstrip('0').rstrip('.') if places else str(value)
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def render_rates(intent, book, destinations, remote_fees):
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from .quote_fees import charge_details
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from .quote_language import translate_quote
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lines = []
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if intent.get('mode')=='time':
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lines.append('美国线路参考时效：')
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elif intent['weight']:
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lines.append(f"美国 {number(intent['weight'])}KG 基础运费：")
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else:
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lines.append('美国线路报价：')
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if intent.get('quantity_note'):lines.append(intent['quantity_note'])
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if intent.get('allocations'):
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lines.append('按各目的仓分票计算，箱规需逐票核对：')
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elif len(intent.get('warehouses') or [])>1:
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lines.append('以下按各目的仓分别比较；实际分票请提供每个仓的重量。')
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if intent.get('air_requested') and not intent.get('air_only'):
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lines.append('当前资料没有美国空运费率，下面列出海运方案。')
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for destination, fees in zip(destinations, remote_fees):
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part=destination.get('allocation')
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billing=({**intent,'weight':part['weight'],'packages':part.get('packages'),'dims':None,'cbm':None,'boxes':part.get('boxes')}
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if part else intent)
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rates = match_rates(billing, book, destination)
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if intent.get('mode') in ('cheapest','fastest') and rates:
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if intent['mode']=='cheapest':
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eligible=[r for r in rates if quantity(billing,r) is not None]
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best={}
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for rate in eligible:
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key=(destination['zone'] or rate['zone'],rate['unit'],rate['tax'])
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value=quantity(billing,rate)*Decimal(rate['price'])+charge_details(billing,rate,fees,book)['cny']
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best[key]=min(best.get(key,value),value)
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rates=[r for r in eligible if quantity(billing,r)*Decimal(r['price'])+charge_details(billing,r,fees,book)['cny']==best[(destination['zone'] or r['zone'],r['unit'],r['tax'])]] or rates
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lines.append('按相同区域、计费单位及税费方式比较的较低价方案：')
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else:
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def eta_key(rate):
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values=[Decimal(v) for v in re.findall(r'\d+(?:\.\d+)?',rate['eta'])]
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return tuple(values[:2]) if values else (Decimal('Infinity'),)
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earliest=min(eta_key(r) for r in rates)
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rates=[r for r in rates if eta_key(r)==earliest]
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lines.append('按资料中的参考时效，较快方案如下；提取不等于送达或签收：')
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if not rates:
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lines.append(f"{destination['label']}：当前资料没有匹配的线路价格，提供目的仓码或邮编可继续查询。")
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continue
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if destination['label'] != '美国':
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lines.append(destination['label']+'：')
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grouped = {}
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for rate in rates:
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key = (rate['service'], rate['origin'], rate['unit'], rate['tax'])
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grouped.setdefault(key, []).append(rate)
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for (service, origin, unit, tax), rows in grouped.items():
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if intent.get('mode')=='time':
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eta=rows[0]['eta'] or '当前资料未列明时效'
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if rows[0]['kind']=='parcel' and '提取' not in eta:eta+='提取'
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lines.append(f'- {service} · {origin}：{eta}。提取不等于送达或签收。')
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continue
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parts = []
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for rate in rows:
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amount = quantity(billing,rate)
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price = Decimal(rate['price'])
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rate_text = f"{rate['zone']} " if rate['zone'] and not destination['zone'] else ''
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rate_text += f"{number(price)}元/{'KG' if unit == 'kg' else 'CBM'}"
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if amount is not None:
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total = amount*price
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details=charge_details(billing,rate,fees,book)
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total+=details['cny']
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rate_text += f"，{number(amount,3)}{'KG' if unit == 'kg' else 'CBM'} = {number(total)}元"
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if details['items']:rate_text+='（'+ '；'.join(details['items'])+'）'
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for note in details['notes']:
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if note not in lines:lines.append(note)
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elif intent.get('cbm') and rate['unit']=='cbm':
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lines.append('计费体积四舍五入后不足0.01CBM，最低计费体积需人工确认，不能按零费用出价。')
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parts.append(rate_text)
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eta = re.sub(r'\s*无时效赔偿', '', rows[0]['eta']).strip()
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if rows[0]['kind']=='parcel' and eta and '提取' not in eta:eta+='提取'
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elif rows[0]['kind']=='truck' and eta and '船开' not in eta:eta='开船后参考'+eta
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lines.append(f"- {service} · {origin} · {'包税' if tax=='included' else '不包税'}："+'；'.join(parts)
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+ (f'（{eta}）' if eta else ''))
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if fees:
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if fees['fee'] is None:
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lines.append('该邮编属于遥远地址，派送附加费需单独确认。')
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else:
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lines.append(f"海派已计入偏远附加费 {number(fees['fee'])}元/KG。")
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if not any(intent.get(key) for key in ('warehouse','postal')):
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lines.append('发我目的仓码或邮编，可继续匹配到仓线路。')
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if intent.get('mode')=='time':
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pass
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elif not intent['weight'] and not intent['cbm'] and not intent['dims']:
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lines.append('货物多少公斤、几箱？')
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elif not intent['boxes'] or not intent['dims']:
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lines.append('请补充箱数、每箱重量和尺寸，继续核算计费重及超重超尺寸费用。')
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if intent.get('mode')=='calculation':
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lines.append('计算过程：各箱实重与体积重取大；海派每箱不足12KG按12KG计费，再按整票计费重选择重量档位，乘对应单价，并单列已知附加费。')
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text='\n'.join(lines)
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return translate_quote(text) if intent.get('english') else text
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