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              <figure>
  <svg viewBox="0 0 100 20" preserveAspectRatio="xMidYMid">
  <g id="loading">
    <text y=50% x=50% font-size="2" text-anchor="middle">Fetching bug info</text>
  </g>
  </svg>
  <figcaption></figcaption>
</figure>
            
          
!
            
              @import url(https://fonts.googleapis.com/css?family=Libre+Baskerville:400italic);

* {
  box-sizing: border-box;  
}

body {
    background-color: rgba(10,20,0,0.03);
}

figcaption {
  padding: 0.5em 5em 0.5em 0.5em;
  display: inline-block;
  background-color: #03A9F4;
  color: #FFF;
  font-style: italic;
  font-family: 'Libre Baskerville', serif;
  border-radius: 0 0.5em 0.5em 0;
}

figcaption::before {
  content: '~ '
}

figcaption a, figcaption a:visited {
  color: inherit;
}

svg {
  margin: 0;
  width: 100vw;
  height: 200px;
}

.bug-line {
  cursor: pointer;
  animation: .2s linear appears;
}

@keyframes appears {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
            
          
!
            
              var COLORS = ["rgb(244, 67, 54)","rgb(233, 30, 99)","rgb(156, 39, 176)","rgb(103, 58, 183)","rgb(63, 81, 181)","rgb(33, 150, 243)","rgb(3, 169, 244)","rgb(0, 188, 212)","rgb(0, 150, 136)","rgb(76, 175, 80)","rgb(139, 195, 74)","rgb(255, 193, 7)","rgb(255, 152, 0)","rgb(255, 87, 34)","rgb(121, 85, 72)","rgb(96, 125, 139)"];
var userColor = {};

var svg = document.querySelector('svg');
const FIRST_WEEKDAY = new Date('2016-01-04');
const MS_A_DAY = 1000 * 60 * 60 * 24;
const BUGZILLA_API_URL = 'https://bugzilla.mozilla.org/rest/';
const BUG_ID = 1227477;
const EMAIL = "chevobbe.nicolas@gmail.com";

document.querySelector('figcaption').innerHTML =`<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=${BUG_ID}">Bug ${BUG_ID}</a>`;

var myHeaders = new Headers();
myHeaders.append('Accept', 'application/json');
var fetchParams = {
  mode: 'cors',
  method: 'GET',
  headers: myHeaders
};
var bugDetail = fetch(`${BUGZILLA_API_URL}bug/${BUG_ID}`,fetchParams)
.then((response) => response.json());
var bugHistory = fetch(`${BUGZILLA_API_URL}bug/${BUG_ID}/history`, fetchParams)
.then((response) => response.json());

Promise.all([bugDetail, bugHistory]).then(function(results){
  console.log(results);
  var bugData = results[0].bugs[0];
  bugData.history = results[1].bugs[0].history;
  console.log(bugData);
  drawBug(bugData);
})
.catch((e) => console.error(e))
 
function drawBug(bug){
    var bugColor = '#FFECB4';
  console.log(svg);
    var y = 20;
    var assignDate = null;
    bug.history.some(function(activity){
      var hasAssignement = activity.changes.some(function(change){
        return (change.field_name === 'assigned_to' && change.added === EMAIL);
      });
      if(hasAssignement === true){
        assignDate = new Date(activity.when);
        return true;
      }
    });
    bug.assign_time = assignDate.getTime();
  
    var endDate = new Date();
    if(bug.cf_last_resolved){
      endDate = (new Date(bug.cf_last_resolved));
    } 

    function getPositionFromDate(date){
      var dateTime = date.getTime();
      var length = svg.getAttribute('viewBox').split(' ')[2];
      var padding = 5;
      var a = (endDate.getTime() - bug.assign_time)/(length-(padding*2));
      return padding + ((dateTime - bug.assign_time ) / a);
    }
  
    var holidaysStart = (new Date('2016-01-16'));
    var holidaysEnd = (new Date('2016-01-23'));
  
    var holdayGroup = document.createElementNS("http://www.w3.org/2000/svg", "g");
  
    var holidaysRect = document.createElementNS("http://www.w3.org/2000/svg", "rect");
    holidaysRect.setAttribute('title', 'Ski Holidays'); 
    holidaysRect.setAttribute('x', getPositionFromDate(holidaysStart)); 
    holidaysRect.setAttribute('y', y / 4);
    holidaysRect.setAttribute('rx', y / 10);
    holidaysRect.setAttribute('ry', y / 10);
    holidaysRect.setAttribute('width', getPositionFromDate(holidaysEnd) - getPositionFromDate(holidaysStart));
    holidaysRect.setAttribute('height', y / 2);
    holidaysRect.setAttribute('fill', '#77B6EC');
    holidaysRect.setAttribute('fill-opacity', 0.8);
    holdayGroup.appendChild(holidaysRect);
  
    var holidaysText = document.createElementNS("http://www.w3.org/2000/svg", "text");
    holidaysText.textContent = 'HOLIDAYS';
    holidaysText.setAttribute('x', getPositionFromDate(holidaysStart) + ((getPositionFromDate(holidaysEnd) - getPositionFromDate(holidaysStart))/2));
    holidaysText.setAttribute('y', y - (y / 6) );
    holidaysText.setAttribute('text-anchor','middle');
  holidaysText.setAttribute('font-size',2);
  holidaysText.setAttribute('fill', '#77B6EC');
    holdayGroup.appendChild(holidaysText);
  
    svg.appendChild(holdayGroup);
  
  
    var bugGroup = document.createElementNS("http://www.w3.org/2000/svg", "g");
    bugGroup.classList.add('bug-line'); 
  
    var assignLine = document.createElementNS("http://www.w3.org/2000/svg", "line");
    assignLine.setAttribute('x1', getPositionFromDate(new Date(bug.assign_time))); 
    assignLine.setAttribute('y1', y/2);
    assignLine.setAttribute('x2', getPositionFromDate(endDate));
    assignLine.setAttribute('y2', y/2);
    assignLine.setAttribute('stroke', bugColor);
    assignLine.setAttribute('stroke-opacity', 0.75);
    assignLine.setAttribute('stroke-width', 4);
    assignLine.setAttribute('stroke-linecap', 'round');
    bugGroup.appendChild(assignLine);
  
    if(bug.cf_last_resolved){
      var endCircle = document.createElementNS("http://www.w3.org/2000/svg", "circle");
      endCircle.setAttribute('cx',getPositionFromDate(new Date(bug.cf_last_resolved)));
      endCircle.setAttribute('cy', y/2);
      endCircle.setAttribute('r', 1.5);
      endCircle.setAttribute('fill', '#B2A47D');
      endCircle.setAttribute('title',`RESOLVED ${bug.cf_last_resolved}`)
      bugGroup.appendChild(endCircle);
    }
  
    var bugLine = document.createElementNS("http://www.w3.org/2000/svg", "line");
    bugLine.setAttribute('title', `Bug ${bug.id} - ${bug.summary}`); 
    bugLine.setAttribute('x1', getPositionFromDate(new Date(bug.assign_time)));
    bugLine.setAttribute('y1', y/2);
    bugLine.setAttribute('x2', getPositionFromDate(endDate)); 
    bugLine.setAttribute('y2', y/2);
    bugLine.setAttribute('stroke', '#B2A47D');
    bugLine.setAttribute('stroke-width', 0.5);
    bugLine.setAttribute('stroke-linecap', 'round');
    bugGroup.appendChild(bugLine);
  
    bug.history.forEach(function(historyEntry, idx){
      if(! userColor[historyEntry.who]){
        userColor[historyEntry.who] = COLORS.shift();
      }
      var entryColor = userColor[historyEntry.who];
      var entryCircle = document.createElementNS("http://www.w3.org/2000/svg", "circle");
      var entryDate = new Date(historyEntry.when);
      entryCircle.setAttribute('cx',getPositionFromDate(entryDate));
      entryCircle.setAttribute('cy', y/2);
      entryCircle.setAttribute('r', 1);
      entryCircle.setAttribute('fill', entryColor);
      entryCircle.setAttribute('title', `${historyEntry.when} - ${historyEntry.who} : ${historyEntry.changes.map((item) => (item.field_name + " " + item.added)).join(' - ')}`); 
      bugGroup.appendChild(entryCircle);
    });
  svg.querySelector('#loading').remove();
  svg.appendChild(bugGroup);
  console.log((bug.assign_time - FIRST_WEEKDAY.getTime()) / MS_A_DAY)
  for(var i = 0; i <= (bug.assign_time - FIRST_WEEKDAY.getTime()) / MS_A_DAY ; i++){
    var weekLine = document.createElementNS("http://www.w3.org/2000/svg", "line");
    var firstWeekDay = new Date(FIRST_WEEKDAY.getTime() + ( i * MS_A_DAY * 7));
    console.log(i,new Date(FIRST_WEEKDAY.getTime() + ( i * MS_A_DAY * 7)))
    weekLine.setAttribute('x1', getPositionFromDate(firstWeekDay)); 
    weekLine.setAttribute('y1', 0);
    weekLine.setAttribute('x2', getPositionFromDate(firstWeekDay));
    weekLine.setAttribute('y2', y);
    weekLine.setAttribute('stroke', 'black');
    weekLine.setAttribute('stroke-opacity', 0.3);
    weekLine.setAttribute('stroke-width', 0.1);
    svg.appendChild(weekLine);
    
    var weekText = document.createElementNS("http://www.w3.org/2000/svg", "text");
    weekText.textContent = '-Week #'+ (i +1);
    weekText.setAttribute('x', getPositionFromDate(firstWeekDay));
    weekText.setAttribute('y', 2 );
    weekText.setAttribute('font-size',1.5);
    weekText.setAttribute('fill', '#888');
    svg.insertBefore(weekText, svg.firstChild);
  }
  
}
            
          
!
999px
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