'use strict';
// Import required modules.
let express = require('express');
let axios = require('axios');
let bikeData = {};

// Initialize our Express app.
let app = express();
let requestDataTimer = setInterval(requestData, 3000);

const filterStations = (stations, stationId) => {
let returnObject;
  stations.map((o,index)=>{
    if(o.extra.uid == stationId){
      returnObject = o;
    }
  });
  let time = {
    seconds: pad(new Date().getSeconds(), 2),
    minutes: pad(new Date().getMinutes(), 2),
    hours: pad(new Date().getHours(), 2)
  };
  returnObject.time = time;
  return returnObject;
};

// Generate a simple API
app.get('/', function(req, res) {
  res.send("Hey there! Thanks for visting the site!");
});

// Generate a simple dashboard page.
app.get('/stations', (req, res) => {
  if(req.query.stationId){
    let returnValue = {status:"not found"};
    returnValue = filterStations(bikeData.network.stations, req.query.stationId);
    res.json(returnValue);
  }else{
    res.json({status:"error"});
  }
});

function requestData(){

  axios.get('https://api.citybik.es/v2/networks/valenbisi',{headers: {'Accept-Encoding': 'gzip, deflate, br'}})
  .then(function (response) {
    //console.log(response);
    bikeData = response.data;
  })
  .catch(function (error) {
    console.log(error);
  });
}

function pad(n, width, z) {
  z = z || '0';
  n = n + '';
  return n.length >= width ? n : new Array(width - n.length + 1).join(z) + n;
}
// Listen for incoming requests and serve them.
app.listen(process.env.PORT || 3000);