const http = require('http');
const https = require('https');
const querystring = require('querystring');
const api = require('./api.json');

// Print out temp details
function printWeather(weather) {
  const message = `Current temperature in ${weather.name} is ${weather.main.temp}F`;
  console.log(message);
}

// Print out error message
function printError(error) {
  console.error(error.message);
}

function get(query) {
    try {
      const parameters = {
        APPID: api.key,
        units: 'imperial'
      };

      const zipCode = parseInt(query);
      if (!isNaN(zipCode)) {
        parameters.zip = zipCode + ',us';
      } else {
        parameters.q = query + ',us';
      }

      const url = `https://api.openweathermap.org/data/2.5/weather?${querystring.stringify(parameters)}`;
      console.log(url);

      const request = https.get(url, response => {
        if (response.statusCode === 200) {
          let body = '';
          // Read the data
          response.on('data', chunk => {
            body += chunk;
          });
          response.on('end', () => {
            try {
              //Parse data
              const weather = JSON.parse(body);
              //Print the data
              printWeather(weather);
            } catch (error) {
              //Parser error
              printError(error);
            }
          });
        } else {
          // Status error code
          const statusErrorCode = new Error(`There was an error getting the message for "${query}". (${http.STATUS_CODES[response.statusCode]})`);
          printError(statusErrorCode);
        }        
      });
    } catch (error) {
      printError(error);
    }  
}

module.exports.get = get;