index.js

const fs = require("fs");
const path = require("path");
const { getCache, addCache } = require("../lib/caches.js");

async function getAddressInfoByCEP(cep) {
  try {
    const filePath = path.resolve(__dirname, "./ceps.csv");
    let data = await getCache();
    console.log(data?.length);
    if (!data) {
      console.log("n");
      data = fs.readFileSync(filePath, "utf8");
      await addCache(data);
    }
    const lines = data.split("\n");

    for (let line of lines) {
      const fields = line.split(";");

      if (fields.length >= 4 && fields[0] === cep.replace("-", "")) {
        return {
          state: fields[1],
          city: fields[2],
          neighborhood: fields[3],
          street: fields[4].replace("\r", ""),
        };
      }
    }

    return "NOT_FOUND";
  } catch (error) {
    console.error("Error reading file:", error);
    return "FILE_NOT_FOUND";
  }
}

module.exports = { getAddressInfoByCEP };