var redBloodClock = {
    "clock": 0,

    "clockSnapshot": 0,

    "clockLastStopped": 0,

    "clockExpected": 0,

    "clockState": {
      "bumpClockUpButton": null,
      "bumpClockDownButton": null,
    },

    "isClockFlashing": false,

    "stopClockFlag": false,

    "reset": function(){
      $("#redBloodStopClockButton").click();
      $("#redBloodRewindClockButton").addClass("disabled");

      redBloodClock.setClock(scoreClock.config.colorClockLengths.redBloodLength);
    },

    "bumpClockUp": function()
    {
        length = redBloodClock.clock + 1;
        redBloodClock.setClock(length);
    },

    "bumpClockDown": function()
    {
        if (redBloodClock.clock == 0)
        {
          $("#redBloodBumpClockDownButton").addClass("disabled");
          return;
        }
        length = redBloodClock.clock - 1;
        redBloodClock.setClock(length);
    },

    "flashClock": function()
    {
        if (redBloodClock.stopClockFlag)
        {
          redBloodClock.isClockFlashing = false;
          $("#redBloodMinsField").css( "background-color", "rgb(255, 255, 255)");
          $("#redBloodSecsField").css( "background-color", "rgb(255, 255, 255)");
          return;
        }

        var backgroundColor = $("#redBloodMinsField").css( "background-color" );

        //window.alert(backgroundColor)

        if (backgroundColor == "rgb(255, 255, 255)")
        {
            $("#redBloodMinsField").css( "background-color", "rgb(51, 51, 51)");
            $("#redBloodSecsField").css( "background-color", "rgb(51, 51, 51)");

            setTimeout(redBloodClock.flashClock, 500);
        }
        else if (backgroundColor == "rgb(51, 51, 51)")
        {
            $("#redBloodMinsField").css( "background-color", "rgb(255, 255, 255)");
            $("#redBloodSecsField").css( "background-color", "rgb(255, 255, 255)");

            setTimeout(redBloodClock.flashClock, 500);
        }

        //window.alert(backgroundColor);
    },

    "rewindClock": function()
    {
        if (redBloodClock.clockSnapshot > 0)
        {
          redBloodClock.clockLastStopped = redBloodClock.clockSnapshot;
          redBloodClock.setClock(redBloodClock.clockSnapshot);
        }
        $("#redBloodRewindClockButton").addClass("disabled");
    },

    "setClock": function (length)
    {
      redBloodClock.clock = length;

      var min = Math.floor(length / 60);
      var secs = length % 60;

      if (secs < 10)
      {
            secs = "0" + secs;
      }

      $("#redBloodMinsField").val(min);
      $("#redBloodSecsField").val(secs);

      scoreClock.syncColorClock("redBlood", min, secs);
    },

    "startClock": function()
    {
      redBloodClock.clockState.bumpClockUpButton = $("#redBloodBumpClockUpButton").hasClass("disabled") ? "disabled" : "enabled";
      redBloodClock.clockState.bumpClockUpButton = $("#redBloodBumpClockUpButton").hasClass("disabled") ? "disabled" : "enabled";
      redBloodClock.clockState.bumpClockDownButton = $("#redBloodBumpClockDownButton").hasClass("disabled") ? "disabled" : "enabled";

      $("#redBloodBumpClockUpButton").addClass("disabled");
      $("#redBloodBumpClockDownButton").addClass("disabled");
      $("#redBloodRewindClockButton").addClass("disabled");

      redBloodClock.clockSnapshot = redBloodClock.clock;
      redBloodClock.stopClockFlag = false;
      redBloodClock.clockExpected = Date.now() + 1000;
      setTimeout(redBloodClock.stepClock, 1000);
    },

    "stepClock": function()
    {
      var dt = Date.now() - redBloodClock.clockExpected; // the drift (positive for overshooting)
      if (dt > 1000) {
          // something really bad happened. Maybe the browser (tab) was inactive?
          // possibly special handling to avoid futile "catch up" run
      }

      if (!redBloodClock.stopClockFlag)
      {
        var newLength = redBloodClock.clock - 1;

        if (newLength <= 0 && !redBloodClock.isClockFlashing)
        {
            redBloodClock.isClockFlashing = true;
            redBloodClock.flashClock();
        }

        if (newLength < 0)
        {
          return;
        }

        redBloodClock.setClock(newLength);

        redBloodClock.clockExpected += 1000;
        setTimeout(redBloodClock.stepClock, Math.max(0, 1000 - dt)); // take into account drift
      }
    },

    "stopClock": function()
    {
      if (redBloodClock.clockState.bumpClockUpButton != "disabled")
      {
          $("#redBloodBumpClockUpButton").removeClass("disabled");
      }

      if (redBloodClock.clockState.bumpClockUpButton != "disabled")
      {
          $("#redBloodBumpClockUpButton").removeClass("disabled");
      }

      if (redBloodClock.clockState.bumpClockDownButton != "disabled")
      {
          $("#redBloodBumpClockDownButton").removeClass("disabled");
      }

      if (redBloodClock.clockSnapshot > 0)
      {
        $("#redBloodRewindClockButton").removeClass("disabled");
      }

      redBloodClock.clockLastStopped = redBloodClock.clock;

      redBloodClock.stopClockFlag = true;
    },
};