uscc-utils/dist/index.mjs

Utils about unified social credit code | 统一社会信用代码工具方法

const USCC_PATTERN = (
  // cSpell: disable-next-line
  /[1-9ANY][1-59]\d{6}[\dA-Z]{8}[\dX][\dA-HJ-NP-RTUW-Y]/
);
const USCC_CATEGORY_MAP = {
  1: {
    category: "机构编制",
    map: {
      1: "机关",
      2: "事业单位",
      3: "编办直接管理机构编制的群众团体",
      9: "其他"
    }
  },
  2: {
    category: "外交",
    map: {
      1: "外国常驻新闻机构",
      9: "其他"
    }
  },
  3: {
    category: "司法行政",
    map: {
      1: "律师执业机构",
      2: "公证处",
      3: "基层法律服务所",
      4: "司法鉴定机构",
      5: "仲裁委员会",
      9: "其他"
    }
  },
  4: {
    category: "文化",
    map: {
      1: "外国在华文化中心",
      9: "其他"
    }
  },
  5: {
    category: "民政",
    map: {
      1: "社会团体",
      2: "民办非企业单位",
      3: "基金会",
      9: "其他"
    }
  },
  6: {
    category: "旅游",
    map: {
      1: "外国旅游部门常驻代表机构",
      2: "港澳台地区旅游部门常驻内地（大陆）代表机构",
      9: "其他"
    }
  },
  7: {
    category: "宗教",
    map: {
      1: "宗教活动场所",
      2: "宗教院校",
      9: "其他"
    }
  },
  8: {
    category: "工会",
    map: {
      1: "基层工会",
      9: "其他"
    }
  },
  9: {
    category: "工商",
    map: {
      1: "企业",
      2: "个体工商户",
      3: "农民专业合作社"
    }
  },
  A: {
    category: "中央军委改革和编制办公室",
    map: {
      1: "军队事业单位",
      9: "其他"
    }
  },
  N: {
    category: "农业",
    map: {
      1: "组级集体经济组织",
      2: "村级集体经济组织",
      3: "乡镇级集体经济组织",
      9: "其他"
    }
  },
  Y: {
    category: "其他",
    map: {}
  }
};

const USCC_LENGTH = 18;
const USCC_MOD = 31;
const USCC_CHARS = [
  "0",
  "1",
  "2",
  "3",
  "4",
  "5",
  "6",
  "7",
  "8",
  "9",
  "A",
  "B",
  "C",
  "D",
  "E",
  "F",
  "G",
  "H",
  "J",
  "K",
  "L",
  "M",
  "N",
  "P",
  "Q",
  "R",
  "T",
  "U",
  "W",
  "X",
  "Y"
];
const USCC_WEIGHTS = [
  1,
  3,
  9,
  27,
  19,
  26,
  16,
  17,
  20,
  29,
  25,
  13,
  8,
  24,
  10,
  30,
  28
];
function validateUSCC(code) {
  if (code.length !== USCC_LENGTH) return false;
  if (!USCC_PATTERN.test(code)) return false;
  const sum = code.split("").filter((_, idx) => idx < 17).reduce(
    (acc, char, idx) => acc + USCC_CHARS.indexOf(char) * USCC_WEIGHTS[idx],
    0
  );
  return USCC_CHARS[(USCC_MOD - sum % USCC_MOD) % USCC_MOD] === code.charAt(17);
}

function parseUSCC(code, options = {}) {
  const { unknownCategory = "", unknownType = "" } = options;
  const isValid = validateUSCC(code);
  if (!isValid) {
    return {
      isValid,
      category: unknownCategory,
      type: unknownType
    };
  }
  const matched = USCC_CATEGORY_MAP[code.charAt(0)];
  const category = matched.category;
  const type = matched.map[code.charAt(1)] || unknownType;
  return {
    isValid,
    category,
    type
  };
}

export { USCC_CATEGORY_MAP, USCC_PATTERN, parseUSCC, validateUSCC };