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HTML

              
                <div class="container-fluid">
  <h1>cycleWorks</h1>
  <div class="row" id="inputs">
    <div class="col-lg-offset-1 col-lg-3 col-xs-6">
      <h3>workCycle</h3>
      <div class="cycle-input">
        <i class="fa fa-minus" id='work-minus'></i><span id='work-cycle'>25</span>
        <i class="fa fa-plus" id='work-plus'></i>
      </div>
    </div>
    <div class="col-lg-3 col-lg-push-4 col-xs-6">
      <h3>restCycle</h3>
      <div class="cycle-input">
        <i class="fa fa-minus" id='rest-minus'></i>
        <span id="rest-cycle">5</span>
        <i class="fa fa-plus" id='rest-plus'></i>
      </div>
    </div>
    <div class="col-lg-4 col-lg-pull-3 col-xs-12">
      <h3 id='messages'>cycleTimer</h3>
      <div id='timer'>
        25:00
      </div>
      <div id='timer-controls'>
        <i class="fa fa-lg fa-play" id="play"></i>
        <i class="fa fa-lg fa-pause" id="pause"></i>
        <i class="fa fa-refresh" id="reset"></i>
      </div>
    </div>
  </div>
</div>
              
            
!

CSS

              
                @import url('https://fonts.googleapis.com/css?family=Comfortaa');
$uniformFont : 'Comfortaa', sans-serif;
$jet: rgb(51, 51, 51);
$taupe-gray: rgb(138, 138, 138);
$baby-powder: rgb(255, 255, 251);
$cadet-blue: rgb(92, 158, 173);
$black-coral: rgb(79, 93, 117);
/*Apply styles*/
*{
font-family: $uniformFont;
padding: 0;
margin: 0;
box-sizing: border-box;
}
body {
  background-color: $black-coral;
}
h1 {
  text-align: center;
  padding-bottom: 10px;
  color: $baby-powder;
}
h3 {
  text-align: center;
  color: $baby-powder;
}
.cycle-input {
  background-color: rgba($jet, .75);
  min-height: 100px;
  height: 100px;
  width: 100px;
  text-align: center;
  line-height: 100px;
  font-size: 1.5rem;
  color: $baby-powder;
  border-radius: 50px;
  overflow: hidden;
  margin-left: auto;
  margin-right: auto;
  i {
    padding: 0 5px;
  }
}
i:hover {
    cursor: pointer;
    color: $taupe-gray;
  }
.test {
  border: 2px solid white;
}
.test2 {
  border: 2px solid yellow;
}
#timer {
  min-height: 125px;
  height: 125px;
  width: 250px;
  border-radius: 50px;
  background-color: rgba($jet, .75);
  text-align: center;
  line-height: 125px;
  font-size: 4rem;
  font-weight: 700;
  color: $baby-powder;
  overflow: hidden;
  margin-left: auto;
  margin-right: auto;
  z-index: -1;
  position: relative;
}
#timer-controls {
  font-size: 1.5rem;
  color: $baby-powder;
  text-align: center;
  i {
    padding: 10px 15px;
  }
}



              
            
!

JS

              
                //OBJECT CONSTRUCTOR FUNCTION WILL TAKE INPUTS WORK/REST CYCLES IN MINUTES, DISPLAY AND MESSAGE ELEMENT ID'S
var Pomodoro = function(workTime, restTime, displayId, messageId) {
  this.workCycle = workTime * 60;
  this.restCycle = restTime * 60;
  this.timeLeft = workTime * 60;
  this.prevState = 2; //STATES: 0-INITIAL, 1-PAUSED, 2-WORKCYCLE, 3-RESTCYCLE
  this.currState = 0;
  this.clockDisplay = displayId;
  this.messageDisplay = messageId;
};
//DEFINE METHODS TO UPDATE DISPLAY, UPDATE STATE, PLAY, PAUSE, RESET, AND ADJUST CYCLE TIMES
//DEFINE UPDATEDISPLAY METHOD TO BE USED IN OTHER METHODS
Pomodoro.prototype.updateDisplay = function(timeLeft) {
  //FUNCTION TO FORMAT TIME FOR DISPLAY
  function formatTime(timeSeconds) {
    var minsLeft = Math.floor(timeSeconds / 60),
      secondsLeft = timeSeconds - (minsLeft * 60);
    return (minsLeft < 10 ? '0' + minsLeft : minsLeft) + ":" + (secondsLeft < 10 ? '0' + secondsLeft : secondsLeft);
  }
  //UPDATE INNERTEXT
  document.getElementById(this.clockDisplay).innerText = formatTime(timeLeft);
};
//DEFINE UPDATESTATE METHOD TO BE USED IN OTHER METHODS
Pomodoro.prototype.updateState = function(newState) {
  if (newState === 0) {
    this.prevState = 2;
  } else {
    this.prevState = this.currState;
  }
  this.currState = newState;
  this.updateDisplay(this.timeLeft);
};
//DEFINE PLAY METHOD
Pomodoro.prototype.play = function() {
  var self = this; //CREATE LOCAL VARIABLE TO HOLD REFERENCE TO POMODORO OBJECT
  //DEFINE CLOCKTICK FUNCTION TO RUN OVER INTERVAL
  function clockTick() {
    if (self.timeLeft <= 0) {
      self.timeLeft = self.currState === 2 ? self.restCycle : self.workCycle; //SET TIMELEFT TO NEXT CYCLE
      self.updateState(self.currState === 2 ? 3 : 2);
    } else{
    self.timeLeft = self.timeLeft - 1;
    }
    self.updateDisplay(self.timeLeft);
  }
  if (this.currState === 0 ||  this.currState === 1) { //IF CURRENT STATE IS INITIAL OR PAUSED
    this.updateState(this.prevState === 2 ? 2 : 3); //CHECK PREV STATE TO UPDATE CURRENT STATE
    clockTick(); //FIRST CLOCK TICK IMMEDIATELY - CLOCKTICK DEFINED BELOW
    this.timerInterval = setInterval(function() {
      clockTick();
    }, 1000); //CREATE INTERVAL TO CLOCKTICK EVERY SECOND
  }
};
//DEFINE PAUSE METHOD
Pomodoro.prototype.pause = function() {
  if (this.currState === 2 || this.currState === 3) {
    this.updateState(1);
    clearInterval(this.timerInterval);
  }
};
//DEFINE RESET METHOD
Pomodoro.prototype.reset = function() {
  clearInterval(this.timerInterval);
  this.updateState(0);
  this.timeLeft = this.workCycle;
  this.updateDisplay(this.timeLeft);
};
//DEFINE UPDATE TIMES METHOD
Pomodoro.prototype.updateTimes = function (workCycle,restCycle){
  this.workCycle = workCycle*60;
  this.restCycle = restCycle*60;
  this.reset();
};
//INITIALIZE OUR POMODORO
var cycleWorks = new Pomodoro(25, 5, "timer", "messages");
//ASSIGN CYCLEWORKS METHODS TO DOM ELEMENTS-PLAY,PAUSE,RESET
var playId=document.getElementById("play"),
    pauseId=document.getElementById("pause"),
    resetId=document.getElementById("reset");
playId.addEventListener('click',function(){cycleWorks.play();});
pauseId.addEventListener('click',function(){cycleWorks.pause();});
resetId.addEventListener('click',function(){cycleWorks.reset();});
//COMPLETE FUNCTIONALITY OF UPDATING CYCLE LENGTHS USING UPDATETIMES METHOD
var workMinusId=document.getElementById("work-minus"),
    workPlusId=document.getElementById("work-plus"),
    workCycleId=document.getElementById("work-cycle"),
    restMinusId=document.getElementById("rest-minus"),
    restPlusId=document.getElementById("rest-plus"),
    restCycleId=document.getElementById("rest-cycle");
    
workMinusId.addEventListener('click',function(){
  if (parseInt(workCycleId.innerText)>1){
  workCycleId.innerText = parseInt(workCycleId.innerText) - 1;
  cycleWorks.updateTimes(workCycleId.innerText,restCycleId.innerText);
}
});
workPlusId.addEventListener('click',function(){
  workCycleId.innerText = parseInt(workCycleId.innerText) + 1;
  cycleWorks.updateTimes(workCycleId.innerText,restCycleId.innerText);
});
restMinusId.addEventListener('click',function(){
  if (parseInt(restCycleId.innerText)>=1){
  restCycleId.innerText = parseInt(restCycleId.innerText) - 1;
  cycleWorks.updateTimes(workCycleId.innerText,restCycleId.innerText);
}
});
restPlusId.addEventListener('click',function(){
  restCycleId.innerText = parseInt(restCycleId.innerText) + 1;
  cycleWorks.updateTimes(workCycleId.innerText,restCycleId.innerText);
});
              
            
!
999px

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