const fs = require('fs');
const path = require('path');
const { parse } = require('csv-parse');

const CSV_FILE_PATH = path.join(__dirname, 'data', 'pincode.csv');
const JSON_FILE_PATH = path.join(__dirname, 'data', 'pincodes.json');

async function convertCsvToJson() {
  const records = [];
  const parser = fs
    .createReadStream(CSV_FILE_PATH)
    .pipe(parse({ columns: true, skip_empty_lines: true }));

  for await (const record of parser) {
    records.push({
      pincode: record.pincode,
      office_name: record.officename,
      office_type: record.officetype,
      district: record.district,
      division: record.divisionname,
      region: record.regionname,
      state: record.statename,
      latitude: record.latitude === 'NA' ? null : parseFloat(record.latitude),
      longitude: record.longitude === 'NA' ? null : parseFloat(record.longitude),
    });
  }

  fs.writeFileSync(JSON_FILE_PATH, JSON.stringify(records, null, 2));
  console.log(`Converted ${records.length} records from CSV to JSON.`);
}

convertCsvToJson().catch(console.error);