const UI_INITIAL_GUI = 200;
const UPDATE_OFFSET = 100;

const UI_TITEL = 0;

const UI_PAD = 1;
const UPDATE_PAD = 101;

const UI_CPAD = 2;
const UPDATE_CPAD = 102;

const UI_BUTTON = 3;
const UPDATE_BUTTON = 103;

const UI_LABEL = 4;
const UPDATE_LABEL = 104;

const UI_SWITCHER = 5;
const UPDATE_SWITCHER = 105;

const UI_SLIDER = 6;
const UPDATE_SLIDER = 106;

const UI_NUMBER = 7;
const UPDATE_NUMBER = 107;

const UI_TEXT_INPUT = 8;
const UPDATE_TEXT_INPUT = 108;

const UI_GRAPH = 9;
const ADD_GRAPH_POINT = 10;
const CLEAR_GRAPH = 109;

const UI_TAB = 11;
const UPDATE_TAB = 111;

const UI_SELECT = 12;
const UPDATE_SELECT = 112;
const UI_OPTION = 13;
const UPDATE_OPTION = 113;

const UP = 0;
const DOWN = 1;
const LEFT = 2;
const RIGHT = 3;
const CENTER = 4;

// Colors
const C_TURQUOISE = 0;
const C_EMERALD = 1;
const C_PETERRIVER = 2;
const C_WETASPHALT = 3;
const C_SUNFLOWER = 4;
const C_CARROT = 5;
const C_ALIZARIN = 6;
const C_DARK = 7;
const C_NONE = 255;

function colorClass(colorId) {
  colorId = Number(colorId);
  switch (colorId) {
    case C_TURQUOISE:
      return "turquoise";

    case C_EMERALD:
      return "emerald";

    case C_PETERRIVER:
      return "peterriver";

    case C_WETASPHALT:
      return "wetasphalt";

    case C_SUNFLOWER:
      return "sunflower";

    case C_CARROT:
      return "carrot";

    case C_ALIZARIN:
      return "alizarin";

    case C_NONE:
      return "dark";
    default:
      return "";
  }
}

var websock;
var websockConnected = false;

function restart() {
  $(document)
    .add("*")
    .off();
  $("#row").html("");
  websock.close();
  start();
}

function conStatusError() {
  websockConnected = false;
  $("#conStatus").removeClass("color-green");
  $("#conStatus").addClass("color-red");
  $("#conStatus").html("Error / No Connection ↻");
  $("#conStatus").off();
  $("#conStatus").on({
    click: restart
  });
}

function handleVisibilityChange() {
  if (!websockConnected && !document.hidden) {
    restart();
  }
}

function start() {
  document.addEventListener("visibilitychange", handleVisibilityChange, false);
  websock = new WebSocket("ws://" + window.location.hostname + "/ws");
  websock.onopen = function(evt) {
    console.log("websock open");
    $("#conStatus").addClass("color-green");
    $("#conStatus").text("Connected");
    websockConnected = true;
  };

  websock.onclose = function(evt) {
    console.log("websock close");
    conStatusError();
  };

  websock.onerror = function(evt) {
    console.log(evt);
    conStatusError();
  };

  var handleEvent = function(evt) {
    //console.log(evt);
    var data = JSON.parse(evt.data);
    var e = document.body;
    var center = "";
    switch (data.type) {
      case UI_INITIAL_GUI:
        data.controls.forEach(element => {
          var fauxEvent = {
            data: JSON.stringify(element)
          };
          handleEvent(fauxEvent);
        });
        break;
        
      case UI_TITEL:
        document.title = data.label;
        $("#mainHeader").html(data.label);
        break;
        
      case UI_LABEL:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter " + colorClass(data.color) + "'>" +
            "<h5>" + data.label + "</h5><hr/>" +
            "<span id='l" + data.id + "' class='label label-wrap'>" + data.value + "</span>" +
          "</div>"
        );
        break;
        
      case UI_BUTTON:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='one columns card tcenter " + colorClass(data.color) + "'>" + 
          "<h5>" + data.label + "</h5><hr/>" +
          "<button id='btn" + data.id + "' " +
            "onmousedown='buttonclick(" + data.id + ", true)' "+
            "onmouseup='buttonclick(" + data.id + ", false)'>" +
            data.value +
          "</button></div>"
        );
        $("#btn" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            buttonclick(data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            buttonclick(data.id, false);
          }
        });
        break;
        
      case UI_SWITCHER:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='one columns card tcenter " + colorClass(data.color) + "'>" + 
            "<h5>" + data.label + "</h5><hr/>" +
            "<label id='sl" + data.id + "' class='switch " + ((data.value == "1")?"checked":"") + "'>"  +
              "<div class='in'><input type='checkbox' id='s" + data.id + "' onClick='switcher(" + data.id + ",null)' " + ((data.value == "1")?"checked":"") + "/></div>" +
            "</label>" +
          "</div>"
        );
        switcher(data.id, data.value);
        break;
        
      case UI_CPAD:
      case UI_PAD:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter " + colorClass(data.color) + "'>" + 
          "<h5>" + data.label + "</h5><hr/>" +
            "<nav class='control'>" +
            "<ul>" +
              "<li><a onmousedown='padclick(UP, "    + data.id + ", true)' onmouseup='padclick(UP, "    + data.id + ", false)' id='pf" + data.id + "'>▲</a></li>" +
              "<li><a onmousedown='padclick(RIGHT, " + data.id + ", true)' onmouseup='padclick(RIGHT, " + data.id + ", false)' id='pr" + data.id + "'>▲</a></li>" +
              "<li><a onmousedown='padclick(LEFT, "  + data.id + ", true)' onmouseup='padclick(LEFT, "  + data.id + ", false)' id='pl" + data.id + "'>▲</a></li>" +
              "<li><a onmousedown='padclick(DOWN, "  + data.id + ", true)' onmouseup='padclick(DOWN, "  + data.id + ", false)' id='pb" + data.id + "'>▲</a></li>" +
            "</ul>" +
            ((data.type==UI_CPAD)?"<a class='confirm' onmousedown='padclick(CENTER," + data.id + ", true)' onmouseup='padclick(CENTER, " + data.id + ", false)' id='pc" + data.id + "'>OK</a>":"") +
            "</nav>" +
            "</div>"
        );

        $("#pf" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            padclick(UP, data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            padclick(UP, data.id, false);
          }
        });
        $("#pl" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            padclick(LEFT, data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            padclick(LEFT, data.id, false);
          }
        });
        $("#pr" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            padclick(RIGHT, data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            padclick(RIGHT, data.id, false);
          }
        });
        $("#pb" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            padclick(DOWN, data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            padclick(DOWN, data.id, false);
          }
        });
        $("#pc" + data.id).on({
          touchstart: function(e) {
            e.preventDefault();
            padclick(CENTER, data.id, true);
          },
          touchend: function(e) {
            e.preventDefault();
            padclick(CENTER, data.id, false);
          }
        });

        break;
        
      case UI_SLIDER:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter card-slider " + colorClass(data.color) + "'>" + 
            "<h5>" + data.label + "</h5><hr/>" +
            "<div id='sl" + data.id + "' class='rkmd-slider slider-discrete slider-" + colorClass(data.color) + "'>" +
              "<input type='range' min='0' max='100' value='" + data.value + "'>" +
            "</div>" +
          "</div>" + 
          "<script>rkmd_rangeSlider('#sl" + data.id + "');</script>"
        );
        break;

      case UI_NUMBER:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter " + colorClass(data.color) + "'>" + 
            "<h5>" + data.label + "</h5><hr/>" +
            "<input style='color:black;' id='num" + data.id + "' type='number' value='" + data.value + "' onchange='numberchange(" + data.id + ")' />" +
          "</div>"
        );
        break;

      case UI_TEXT_INPUT:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter " + colorClass(data.color) + "'>" + 
            "<h5>" + data.label + "</h5><hr/>" +
            "<input style='color:black;' id='text" + data.id + "' value='" + data.value + "' onchange='textchange(" + data.id + ")' />" +
          "</div>"
        );
        break;
        
      case UI_TAB:
        $("#tabsnav").append(
          "<li><a href='#tab" + data.id + "'>" + data.value + "</a></li>"
        );
        $("#tabscontent").append(
          "<div id='tab" + data.id + "'></div>"
        );
        
        tabs = $('.tabscontent').tabbedContent({loop: true}).data('api');
            // switch to tab...
            $('a').filter(function() {
                return $(this).attr('href') === '#click-to-switch';
            }).on('click', function(e) {
                var tab = prompt('Tab to switch to (number or id)?');
                if (!tabs.switchTab(tab)) {
                    alert('That tab does not exist :\\');
                }
                e.preventDefault();
            });
        break;
        
      case UI_SELECT:
        var parent;
        if(data.parentControl) {
          parent = $("#tab"+data.parentControl);
        } else {
          parent = $("#row")
        }
        parent.append(
          "<div id='" + data.id + "' class='two columns card tcenter " + colorClass(data.color) + "'>" + 
            "<h5>" + data.label + "</h5><hr/>" +
            "<select style='color:black;' id='select" + data.id + "' onchange='selectchange(" + data.id + ")' />" +
          "</div>"
        );
        break;
        
      case UI_OPTION:
        if(data.parentControl) {
          var parent = $("#select"+data.parentControl);
          parent.append(
            "<option id='option" + data.id + "' value='" + data.value + "' " + data.selected + ">" + data.label + "</option>"
          );
        }
        break;
        
      case UPDATE_LABEL:
        $("#l" + data.id).html(data.value);
        break;
        
      case UPDATE_SWITCHER:
        switcher(data.id, (data.value == "0")?0:1);
        break;

      case UPDATE_SLIDER:
        slider_move($("#sl" + data.id), data.value, "100", false);
        break;

      case UPDATE_NUMBER:
        $("#num" + data.id).val(data.value);
        break;

      case UPDATE_TEXT_INPUT:
        $("#text" + data.id).val(data.value);
        break;
        
      case UPDATE_SELECT:
        $("#select" + data.id).val(data.value);
        break;
        
      case UPDATE_BUTTON:
      case UPDATE_PAD:
      case UPDATE_CPAD:
        break;

      default:
        console.error("Unknown type or event");
        break;
    }
    
    if(data.type >= UPDATE_OFFSET && data.type < UI_INITIAL_GUI) {
      var element = $('#' + data.id);
      if(data.type == UPDATE_SLIDER) {
        element.removeClass("slider-turquoise slider-emerald slider-peterriver slider-wetasphalt slider-sunflower slider-carrot slider-alizarin");
        element.addClass("slider-" + colorClass(data.color));
      } else {
        element.removeClass("turquoise emerald peterriver wetasphalt sunflower carrot alizarin");
        element.addClass(colorClass(data.color));
      }
    }
  };
  
  websock.onmessage = handleEvent;
}

function numberchange(number) {
  var val = $("#num" + number).val();
  websock.send("nvalue:" + val + ":" + number);
}

function textchange(number) {
  var val = $("#text" + number).val();
  websock.send("tvalue:" + val + ":" + number);
}

function selectchange(number) {
  var val = $("#select" + number).val();
  websock.send("svalue:" + val + ":" + number);
}

function buttonclick(number, isdown) {
  if (isdown) websock.send("bdown:" + number);
  else websock.send("bup:" + number);
}

function padclick(type, number, isdown) {
  switch (type) {
    case CENTER:
      if (isdown) websock.send("pcdown:" + number);
      else websock.send("pcup:" + number);
      break;
    case UP:
      if (isdown) websock.send("pfdown:" + number);
      else websock.send("pfup:" + number);
      break;
    case DOWN:
      if (isdown) websock.send("pbdown:" + number);
      else websock.send("pbup:" + number);
      break;
    case LEFT:
      if (isdown) websock.send("pldown:" + number);
      else websock.send("plup:" + number);
      break;
    case RIGHT:
      if (isdown) websock.send("prdown:" + number);
      else websock.send("prup:" + number);
      break;
  }
}

function switcher(number, state) {
  if (state == null) {
    if ($("#s" + number).is(":checked")) {
      websock.send("sactive:" + number);
      $("#sl" + number).addClass("checked");
    } else {
      websock.send("sinactive:" + number);
      $("#sl" + number).removeClass("checked");
    }
  } else if (state == 1) {
    $("#sl" + number).addClass("checked");
    $("#sl" + number).prop("checked", true);
  } else if (state == 0) {
    $("#sl" + number).removeClass("checked");
    $("#sl" + number).prop("checked", false);
  }
}