$(document).ready(function() {
  getLocation();
  $(".toggle-temp").click(toggleTemp);
 });

function getLocation() {
  $.get('http://jsonip.com/', function(r){ 
    console.log(r.ip);
    $.ajax({
      type: 'post',
      method: 'get',
      url: 'http://api.ipinfodb.com/v3/ip-city/?key=caa0e3fde9c0e9da4e111f9dfd3723e5858ab8792abd02d5383f78a31b5f20c6&ip=' + r.ip + '&format=json&callback=?',
      success: unpackPosition,
      dataType: "json"
    });
  });
} 

function unpackPosition(position){
  console.log(position);
  var lat = position.latitude;
  var lon = position.longitude;
  getWeather(lon, lat, displayWeather);
}

 function getWeather(lon, lat, callback) {
  var url = 'http://api.openweathermap.org/data/2.5/weather';
  $.ajax({
    dataType: "jsonp",
    url: url,
    jsonCallback: 'jsonp',
    data: { lon: lon, lat: lat, "APPID": "cd6671e390cfd42a4dac42c4c1131fbc" },
    cache: false,
    success: function (data) {
        callback(data);
    }
  });
}

function getCityWeather(city, callback) {
   var url = 'http://api.openweathermap.org/data/2.5/weather'
   $.ajax({
     dataType: "json",
     url: url,
     data: {q: city, "APPID": "cd6671e390cfd42a4dac42c4c1131fbc"},
     cache: false,
     success: function(data) {
       callback(data)
     }
   })
}

function displayWeather(data) { 
  var dayNight = dayOrNight(data);
  $('.city').text(data.name);
  $('.description').text(data.weather[0].description);
  var temp = data.main.temp;  
  setTemperature(temp);
  var iconCode = "wi wi-owm-" + dayNight + "-" + data.weather[0].id;
  $('i').addClass(iconCode);
}

function dayOrNight(data) {
  var dayNight;
  var time = data.dt;
  var dayNight;
  if (time < data.sys.sunrise) {
    dayNight = "night";
    $('body').addClass('night').removeClass('day');
  } else if (time > data.sys.sunset) {
    dayNight = "night";
    $('body').addClass('night').removeClass('day');
  } else {
    dayNight = "day";
    $('body').removeClass('night').addClass('day');
  }
  return dayNight;
}
  
function setTemperature(temp) {
  var tempC = Math.round(temp - 273.15);
  $('.temperature').text(tempC + "°C");
}

function toggleTemp(event){
  currButton = $(event.target).text();
  currDisplay = $('.temperature').text();
  currNum = currDisplay.substring(0, currDisplay.length-2);
  if (currButton === "to °F"){
    var tempF = Math.round(Number(currNum) * 1.8 + 32);
    $('.temperature').text(tempF + "°F");
    $(event.target).text("to °C");
  } else {
    var tempC = Math.round((Number(currNum)-32)/1.8);
    $(event.target).text("to °F");
    $('.temperature').text(tempC + "°C");
  }
}

$("#submit").click(function(event) {
  city = $("#city").val();
  getCityWeather(city, displayWeather);
})

$(function() {
  $("form input").keypress(function (e) {
    if ((e.which && e.which == 13) || (e.keyCode && e.keyCode == 13)) {
       e.preventDefault();
       city = $("#city").val();
       getCityWeather(city, displayWeather);
    }
  });
});

$('#question').click(function(event){
  $('#answer').toggle();
})