lgaticaq/indicadoresdeldia

'use strict'

const http = require('http')

const parseAmount = data => {
  return parseFloat(data.replace(/[$.]/g, '').replace(',', '.'))
}

module.exports = () => {
  return new Promise((resolve, reject) => {
    const uri = 'http://indicadoresdeldia.cl/webservice/indicadores.json'
    http
      .get(uri, res => {
        if (res.statusCode !== 200) {
          reject(new Error(`Request Failed. Status Code: ${res.statusCode}`))
        } else {
          let body = ''
          res.setEncoding('utf8')
          res.on('data', chunk => {
            body += chunk
          })
          res.on('end', () => {
            const data = JSON.parse(body)
            const result = {
              date: new Date(
                data.date.replace(
                  /(\d{4})-(\d{2})-(\d{2}) (\d{2}):(\d{2}):(\d{2})/,
                  '$1-$2-$3T$4:$5:$6-03:00'
                )
              ).toISOString(),
              holy: {
                yesterday: data.santoral.ayer,
                today: data.santoral.hoy,
                tomorrow: data.santoral.maniana
              },
              indicator: {
                uf: parseAmount(data.indicador.uf),
                utm: parseAmount(data.indicador.utm),
                imacec: parseAmount(data.indicador.imacec),
                ipc: parseFloat(data.indicador.ipc)
              },
              restriction: {
                normal: {
                  today: data.restriccion.normal,
                  tomorrow: data.restriccion.normal_maniana
                },
                catalitic: data.restriccion.catalitico
              }
            }
            resolve(result)
          })
        }
      })
      .on('error', err => reject(err))
  })
}