feat: 益选 OCR 订单处理系统初始提交
- 智能供应商识别（蓉城易购/烟草/杨碧月/通用） - 百度 OCR 表格识别集成 - 规则引擎（列映射/数据清洗/单位转换/规格推断） - 条码映射管理与云端同步（Gitea REST API） - 云端同步支持：条码映射、供应商配置、商品资料、采购模板 - 拖拽一键处理（图片→OCR→Excel→合并） - 191 个单元测试 - 移除无用的模板管理功能 - 清理 IDE 产物目录 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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"""
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单位转换模块
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----------
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提供单位转换功能，支持规格推断和单位自动提取。
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"""
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import re
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import logging
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import os
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import json
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from typing import Dict, Tuple, Optional, Any, List, Union
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from ..utils.log_utils import get_logger
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from .handlers.barcode_mapper import BarcodeMapper
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from .handlers.unit_converter_handlers import (
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JianUnitHandler, BoxUnitHandler, TiHeUnitHandler,
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GiftUnitHandler, UnitHandler
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)
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from .validators import ProductValidator
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logger = get_logger(__name__)
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# 条码映射配置文件路径
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BARCODE_MAPPING_CONFIG = "config/barcode_mappings.json"
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class UnitConverter:
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"""
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单位转换器：处理不同单位之间的转换，支持从商品名称推断规格
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"""
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def __init__(self):
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"""
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初始化单位转换器
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"""
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# 加载特殊条码配置
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self.special_barcodes = self.load_barcode_mappings()
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# 规格推断的正则表达式模式
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self.spec_patterns = [
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# 1*6、1x12、1X20等格式
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(r'(\d+)[*xX×](\d+)', r'\1*\2'),
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# 1*5*12和1x5x12等三级格式
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(r'(\d+)[*xX×](\d+)[*xX×](\d+)', r'\1*\2*\3'),
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# "xx入"格式，如"12入"、"24入"
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(r'(\d+)入', r'1*\1'),
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# "xxL*1"或"xx升*1"格式
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(r'([\d\.]+)[L升][*xX×]?(\d+)?', r'\1L*\2' if r'\2' else r'\1L*1'),
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# "xxkg*1"或"xx公斤*1"格式
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(r'([\d\.]+)(?:kg|公斤)[*xX×]?(\d+)?', r'\1kg*\2' if r'\2' else r'\1kg*1'),
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# "xxg*1"或"xx克*1"格式
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(r'([\d\.]+)(?:g|克)[*xX×]?(\d+)?', r'\1g*\2' if r'\2' else r'\1g*1'),
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# "xxmL*1"或"xx毫升*1"格式
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(r'([\d\.]+)(?:mL|毫升)[*xX×]?(\d+)?', r'\1mL*\2' if r'\2' else r'\1mL*1'),
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]
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# 初始化处理程序
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self._init_handlers()
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# 初始化验证器
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self.validator = ProductValidator()
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def _init_handlers(self):
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"""
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初始化各种处理程序
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"""
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# 创建条码处理程序
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self.barcode_mapper = BarcodeMapper(self.special_barcodes)
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# 创建单位处理程序列表，优先级从高到低
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self.unit_handlers: List[UnitHandler] = [
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GiftUnitHandler(), # 首先处理赠品，优先级最高
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JianUnitHandler(), # 处理"件"单位
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BoxUnitHandler(), # 处理"箱"单位
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TiHeUnitHandler() # 处理"提"和"盒"单位
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]
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def extract_unit_from_quantity(self, quantity_str: str) -> Tuple[Optional[float], Optional[str]]:
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"""
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从数量字符串中提取单位
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支持的格式:
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1. "2箱" -> (2, "箱")
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2. "3件" -> (3, "件")
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3. "1.5提" -> (1.5, "提")
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4. "数量: 5盒" -> (5, "盒")
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5. "× 2瓶" -> (2, "瓶")
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Args:
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quantity_str: 数量字符串，如"2箱"、"5件"
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Returns:
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(数量, 单位)的元组，如果无法提取则返回(None, None)
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"""
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if not quantity_str or not isinstance(quantity_str, str):
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return None, None
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# 清理字符串，移除前后空白和一些常见前缀
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cleaned_str = quantity_str.strip()
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for prefix in ['数量:', '数量：', '×', 'x', 'X', '*']:
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cleaned_str = cleaned_str.replace(prefix, '').strip()
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# 匹配数字+单位格式 (基本格式)
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basic_match = re.match(r'^([\d\.]+)\s*([^\d\s\.]+)$', cleaned_str)
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if basic_match:
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try:
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num = float(basic_match.group(1))
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unit = basic_match.group(2)
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logger.info(f"从数量提取单位(基本格式): {quantity_str} -> 数量={num}, 单位={unit}")
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return num, unit
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except ValueError:
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pass
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# 匹配更复杂的格式，如包含其他文本的情况
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complex_match = re.search(r'([\d\.]+)\s*([箱|件|瓶|提|盒|袋|桶|包|kg|g|升|毫升|L|ml|个])', cleaned_str)
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if complex_match:
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try:
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num = float(complex_match.group(1))
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unit = complex_match.group(2)
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logger.info(f"从数量提取单位(复杂格式): {quantity_str} -> 数量={num}, 单位={unit}")
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return num, unit
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except ValueError:
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pass
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return None, None
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def extract_specification(self, text: str) -> Optional[str]:
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"""
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从文本中提取规格信息
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Args:
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text: 文本字符串
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Returns:
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提取的规格字符串，如果无法提取则返回None
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"""
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if not text or not isinstance(text, str):
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return None
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# 处理XX入白膜格式，如"550纯净水24入白膜"
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match = re.search(r'.*?(\d+)入白膜', text)
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if match:
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result = f"1*{match.group(1)}"
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logger.info(f"提取规格(入白膜): {text} -> {result}")
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return result
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# 尝试所有模式
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for pattern, replacement in self.spec_patterns:
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match = re.search(pattern, text)
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if match:
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# 特殊处理三级格式，确保正确显示为1*5*12
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if '*' in replacement and replacement.count('*') == 1 and len(match.groups()) >= 2:
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result = f"{match.group(1)}*{match.group(2)}"
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logger.info(f"提取规格: {text} -> {result}")
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return result
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# 特殊处理三级规格格式
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elif '*' in replacement and replacement.count('*') == 2 and len(match.groups()) >= 3:
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result = f"{match.group(1)}*{match.group(2)}*{match.group(3)}"
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logger.info(f"提取三级规格: {text} -> {result}")
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return result
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# 一般情况
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else:
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result = re.sub(pattern, replacement, text)
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logger.info(f"提取规格: {text} -> {result}")
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return result
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# 没有匹配任何模式
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return None
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def infer_specification_from_name(self, name: str) -> Optional[str]:
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"""
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从商品名称中推断规格
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规则:
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1. "xx入纸箱" -> 1*xx (如"15入纸箱" -> 1*15)
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2. 直接包含规格 "1*15" -> 1*15
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3. "xx纸箱" -> 1*xx (如"15纸箱" -> 1*15)
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4. "xx白膜" -> 1*xx (如"12白膜" -> 1*12)
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5. "xxL" 容量单位特殊处理
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6. "xx(g|ml|毫升|克)*数字" -> 1*数字 (如"450g*15" -> 1*15)
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Args:
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name: 商品名称
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Returns:
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推断的规格，如果无法推断则返回None
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"""
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if not name or not isinstance(name, str):
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return None
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# 记录原始商品名称，用于日志
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original_name = name
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# 新增模式: 处理重量/容量*数字格式，如"450g*15", "450ml*15"
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# 忽略重量/容量值，只提取后面的数量作为规格
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weight_volume_pattern = r'.*?\d+(?:g|ml|毫升|克)[*xX×](\d+)'
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match = re.search(weight_volume_pattern, name)
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if match:
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inferred_spec = f"1*{match.group(1)}"
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logger.info(f"从名称推断规格(重量/容量*数量): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式1.1: "xx入白膜" 格式，如"550纯净水24入白膜" -> "1*24"
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pattern1_1 = r'.*?(\d+)入白膜'
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match = re.search(pattern1_1, name)
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if match:
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inferred_spec = f"1*{match.group(1)}"
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logger.info(f"从名称推断规格(入白膜): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式1: "xx入纸箱" 格式，如"445水溶C血橙15入纸箱" -> "1*15"
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pattern1 = r'.*?(\d+)入纸箱'
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match = re.search(pattern1, name)
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if match:
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inferred_spec = f"1*{match.group(1)}"
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logger.info(f"从名称推断规格(入纸箱): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式2: 直接包含规格，如"500-东方树叶-乌龙茶1*15-纸箱装" -> "1*15"
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pattern2 = r'.*?(\d+)[*xX×](\d+).*'
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match = re.search(pattern2, name)
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if match:
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inferred_spec = f"{match.group(1)}*{match.group(2)}"
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logger.info(f"从名称推断规格(直接格式): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式3: "xx纸箱" 格式，如"500茶π蜜桃乌龙15纸箱" -> "1*15"
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pattern3 = r'.*?(\d+)纸箱'
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match = re.search(pattern3, name)
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if match:
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inferred_spec = f"1*{match.group(1)}"
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logger.info(f"从名称推断规格(纸箱): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式4: "xx白膜" 格式，如"1.5L水12白膜" 或 "550水24白膜" -> "1*12" 或 "1*24"
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pattern4 = r'.*?(\d+)白膜'
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match = re.search(pattern4, name)
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if match:
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inferred_spec = f"1*{match.group(1)}"
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logger.info(f"从名称推断规格(白膜): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式5: 容量单位带数量格式 "1.8L*8瓶" -> "1.8L*8"
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volume_count_pattern = r'.*?([\d\.]+)[Ll升][*×xX](\d+).*'
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match = re.search(volume_count_pattern, name)
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if match:
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volume = match.group(1)
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count = match.group(2)
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inferred_spec = f"{volume}L*{count}"
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logger.info(f"从名称推断规格(容量*数量): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 特殊模式6: 简单容量单位如"12.9L桶装水" -> "12.9L*1"
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simple_volume_pattern = r'.*?([\d\.]+)[Ll升].*'
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match = re.search(simple_volume_pattern, name)
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if match:
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inferred_spec = f"{match.group(1)}L*1"
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logger.info(f"从名称推断规格(简单容量): {original_name} -> {inferred_spec}")
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return inferred_spec
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# 尝试通用模式匹配
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spec = self.extract_specification(name)
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if spec:
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logger.info(f"从名称推断规格(通用模式): {original_name} -> {spec}")
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return spec
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return None
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def parse_specification(self, spec: str) -> Tuple[int, int, Optional[int]]:
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"""
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解析规格字符串，支持1*12和1*5*12等格式
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Args:
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spec: 规格字符串
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Returns:
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(一级包装, 二级包装, 三级包装)元组，如果是二级包装，第三个值为None
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"""
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if not spec or not isinstance(spec, str):
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return 1, 1, None
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try:
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# 清理规格字符串，确保格式统一
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spec = re.sub(r'\s+', '', spec) # 移除所有空白
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spec = re.sub(r'[xX×]', '*', spec) # 统一分隔符为*
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logger.debug(f"解析规格: {spec}")
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# 新增：处理“1件=12桶/袋/盒...”等等式规格，统一为1*12
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eq_match = re.match(r'(\d+(?:\.\d+)?)\s*(?:件|箱|提|盒)\s*[=＝]\s*(\d+)\s*(?:瓶|桶|盒|支|个|袋|罐|包|卷)', spec)
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if eq_match:
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try:
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level2 = int(eq_match.group(2))
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logger.info(f"解析等式规格: {spec} -> 1*{level2}")
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return 1, level2, None
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except ValueError:
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pass
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# 处理三级包装，如1*5*12
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three_level_match = re.match(r'(\d+)[*](\d+)[*](\d+)', spec)
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if three_level_match:
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try:
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level1 = int(three_level_match.group(1))
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level2 = int(three_level_match.group(2))
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level3 = int(three_level_match.group(3))
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logger.info(f"解析三级规格: {spec} -> {level1}*{level2}*{level3}")
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return level1, level2, level3
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except ValueError:
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pass
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# 处理带重量单位的规格，如5kg*6、500g*12等
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weight_match = re.match(r'([\d\.]+)(?:kg|g|克|千克|公斤)[*](\d+)', spec, re.IGNORECASE)
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if weight_match:
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try:
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# 对于重量单位，使用1作为一级包装，后面的数字作为二级包装
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level2 = int(weight_match.group(2))
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logger.info(f"解析重量规格: {spec} -> 1*{level2}")
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return 1, level2, None
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except ValueError:
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pass
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# 处理带容量单位的规格，如500ml*15, 1L*12等
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ml_match = re.match(r'(\d+)(?:ml|毫升)[*](\d+)', spec, re.IGNORECASE)
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if ml_match:
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try:
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# 对于ml单位，使用1作为一级包装，后面的数字作为二级包装
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level2 = int(ml_match.group(2))
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logger.info(f"解析容量(ml)规格: {spec} -> 1*{level2}")
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return 1, level2, None
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except ValueError:
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pass
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# 处理带L单位的规格，如1L*12等
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l_match = re.match(r'(\d+(?:\.\d+)?)[Ll升][*](\d+)', spec)
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if l_match:
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try:
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# 对于L单位，正确提取第二部分作为包装数量
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level2 = int(l_match.group(2))
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logger.info(f"解析容量(L)规格: {spec} -> 1*{level2}")
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return 1, level2, None
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except ValueError:
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pass
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# 处理二级包装，如1*12
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two_level_match = re.match(r'(\d+)[*](\d+)', spec)
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if two_level_match:
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try:
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level1 = int(two_level_match.group(1))
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level2 = int(two_level_match.group(2))
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logger.info(f"解析二级规格: {spec} -> {level1}*{level2}")
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return level1, level2, None
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except ValueError:
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pass
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# 特殊处理L/升为单位的规格，如12.5L*1
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volume_match = re.match(r'([\d\.]+)[L升][*xX×](\d+)', spec)
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if volume_match:
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try:
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volume = float(volume_match.group(1))
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quantity = int(volume_match.group(2))
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logger.info(f"解析容量规格: {spec} -> {volume}L*{quantity}")
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return 1, quantity, None
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except ValueError:
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pass
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|
||||
# 处理不规范格式，如IL*12, 6oo*12等，从中提取数字部分作为包装数量
|
||||
# 只要规格中包含*和数字，就尝试提取*后面的数字作为件数
|
||||
irregular_match = re.search(r'[^0-9]*\*(\d+)', spec)
|
||||
if irregular_match:
|
||||
try:
|
||||
level2 = int(irregular_match.group(1))
|
||||
logger.info(f"解析不规范规格: {spec} -> 1*{level2}")
|
||||
return 1, level2, None
|
||||
except ValueError:
|
||||
pass
|
||||
|
||||
# 默认值
|
||||
logger.warning(f"无法解析规格: {spec}，使用默认值1*1")
|
||||
return 1, 1, None
|
||||
except Exception as e:
|
||||
logger.error(f"解析规格时出错: {e}")
|
||||
return 1, 1, None
|
||||
|
||||
def process_unit_conversion(self, product: Dict) -> Dict:
|
||||
"""
|
||||
处理单位转换，按照以下规则：
|
||||
1. 特殊条码: 优先处理特殊条码
|
||||
2. 赠品处理: 对于赠品，维持数量转换但单价为0
|
||||
3. "件"单位: 数量×包装数量, 单价÷包装数量, 单位转为"瓶"
|
||||
4. "箱"单位: 数量×包装数量, 单价÷包装数量, 单位转为"瓶"
|
||||
5. "提"和"盒"单位: 如果是三级规格, 按件处理; 如果是二级规格, 保持不变
|
||||
6. 其他单位: 保持不变
|
||||
|
||||
Args:
|
||||
product: 商品信息字典
|
||||
|
||||
Returns:
|
||||
处理后的商品信息字典
|
||||
"""
|
||||
# 首先验证商品数据
|
||||
product = self.validator.validate_product(product)
|
||||
|
||||
# 复制原始数据，避免修改原始字典
|
||||
result = product.copy()
|
||||
|
||||
barcode = result.get('barcode', '')
|
||||
specification = result.get('specification', '')
|
||||
|
||||
# 跳过无效数据
|
||||
if not barcode:
|
||||
return result
|
||||
|
||||
# 先处理条码映射
|
||||
result = self.barcode_mapper.map_barcode(result)
|
||||
|
||||
# 如果没有规格信息，无法进行单位转换
|
||||
if not specification:
|
||||
# 尝试从商品名称推断规格
|
||||
inferred_spec = self.infer_specification_from_name(result.get('name', ''))
|
||||
if inferred_spec:
|
||||
result['specification'] = inferred_spec
|
||||
logger.info(f"从商品名称推断规格: {result.get('name', '')} -> {inferred_spec}")
|
||||
else:
|
||||
return result
|
||||
|
||||
# 解析规格信息
|
||||
level1, level2, level3 = self.parse_specification(result.get('specification', ''))
|
||||
|
||||
# 使用单位处理程序处理单位转换
|
||||
for handler in self.unit_handlers:
|
||||
if handler.can_handle(result):
|
||||
return handler.handle(result, level1, level2, level3)
|
||||
|
||||
# 没有找到适用的处理程序，保持不变
|
||||
logger.info(f"其他单位处理: 保持原样 数量: {result.get('quantity', 0)}, 单价: {result.get('price', 0)}, 单位: {result.get('unit', '')}")
|
||||
return result
|
||||
|
||||
def load_barcode_mappings(self) -> Dict[str, Dict[str, Any]]:
|
||||
"""
|
||||
从配置文件加载条码映射
|
||||
|
||||
Returns:
|
||||
条码映射字典
|
||||
"""
|
||||
# 默认映射
|
||||
default_mappings = {
|
||||
'6925019900087': {
|
||||
'multiplier': 10,
|
||||
'target_unit': '瓶',
|
||||
'description': '特殊处理：数量*10，单位转换为瓶'
|
||||
},
|
||||
'6921168593804': {
|
||||
'multiplier': 30,
|
||||
'target_unit': '瓶',
|
||||
'description': 'NFC产品特殊处理：每箱30瓶'
|
||||
},
|
||||
'6901826888138': {
|
||||
'multiplier': 30,
|
||||
'target_unit': '瓶',
|
||||
'fixed_price': 112/30,
|
||||
'specification': '1*30',
|
||||
'description': '特殊处理: 规格1*30，数量*30，单价=112/30'
|
||||
},
|
||||
# 条码映射配置
|
||||
'6920584471055': {
|
||||
'map_to': '6920584471017',
|
||||
'description': '条码映射：6920584471055 -> 6920584471017'
|
||||
},
|
||||
'6925861571159': {
|
||||
'map_to': '69021824',
|
||||
'description': '条码映射：6925861571159 -> 69021824'
|
||||
},
|
||||
'6923644268923': {
|
||||
'map_to': '6923644268480',
|
||||
'description': '条码映射：6923644268923 -> 6923644268480'
|
||||
},
|
||||
# 添加特殊条码6958620703716，既需要特殊处理又需要映射
|
||||
'6958620703716': {
|
||||
'specification': '1*14',
|
||||
'map_to': '6958620703907',
|
||||
'description': '特殊处理: 规格1*14，同时映射到6958620703907'
|
||||
}
|
||||
}
|
||||
|
||||
try:
|
||||
# 检查配置文件是否存在
|
||||
if os.path.exists(BARCODE_MAPPING_CONFIG):
|
||||
with open(BARCODE_MAPPING_CONFIG, 'r', encoding='utf-8') as file:
|
||||
mappings = json.load(file)
|
||||
logger.info(f"成功加载条码映射配置，共{len(mappings)}项")
|
||||
return mappings
|
||||
else:
|
||||
# 创建默认配置文件
|
||||
self.save_barcode_mappings(default_mappings)
|
||||
logger.info(f"创建默认条码映射配置，共{len(default_mappings)}项")
|
||||
return default_mappings
|
||||
except Exception as e:
|
||||
logger.error(f"加载条码映射配置失败: {e}")
|
||||
return default_mappings
|
||||
|
||||
def save_barcode_mappings(self, mappings: Dict[str, Dict[str, Any]]) -> bool:
|
||||
"""
|
||||
保存条码映射到配置文件
|
||||
|
||||
Args:
|
||||
mappings: 条码映射字典
|
||||
|
||||
Returns:
|
||||
保存是否成功
|
||||
"""
|
||||
try:
|
||||
# 确保配置目录存在
|
||||
os.makedirs(os.path.dirname(BARCODE_MAPPING_CONFIG), exist_ok=True)
|
||||
|
||||
# 写入配置文件
|
||||
with open(BARCODE_MAPPING_CONFIG, 'w', encoding='utf-8') as file:
|
||||
json.dump(mappings, file, ensure_ascii=False, indent=2)
|
||||
|
||||
logger.info(f"条码映射配置保存成功，共{len(mappings)}项")
|
||||
return True
|
||||
except Exception as e:
|
||||
logger.error(f"保存条码映射配置失败: {e}")
|
||||
return False
|
||||
|
||||
def update_barcode_mappings(self, new_mappings: Dict[str, Dict[str, Any]]) -> bool:
|
||||
"""
|
||||
更新条码映射配置
|
||||
|
||||
Args:
|
||||
new_mappings: 新的条码映射字典
|
||||
|
||||
Returns:
|
||||
更新是否成功
|
||||
"""
|
||||
self.special_barcodes = new_mappings
|
||||
return self.save_barcode_mappings(new_mappings)
|
||||
Reference in New Issue
Block a user