<!--
/* Loads the Google data JavaScript client library */
google.load("gdata", "1");

dbaCal = { container: 'eventList', type: 'sidebar', count: 10 }

function init() {
  // init the Google data JS client library with an error handler
  google.gdata.client.init(handleGDError);
  // load the code.google.com developer calendar
  loadDeveloperCalendar();
  
  if ( document.getElementById('eventTable') ) {
	dbaCal.container = 'eventTable';
	dbaCal.type = 'table';
	dbaCal.count = 50;
	loadDeveloperCalendar();
  }
}

/**
 * Loads the Google Developers Event Calendar
 */
function loadDeveloperCalendar() {
  loadCalendarByAddress('k2r1qtt303jr3rov4mne4t6fu0@group.calendar.google.com');
}

/**
 * Adds a leading zero to a single-digit number.  Used for displaying dates.
 */
function padNumber(num) {
  if (num <= 9) {
    return "0" + num;
  }
  return num;
}

/**
 * Determines the full calendarUrl based upon the calendarAddress
 * argument and calls loadCalendar with the calendarUrl value.
 *
 * @param {string} calendarAddress is the email-style address for the calendar
 */ 
function loadCalendarByAddress(calendarAddress) {
  var calendarUrl = 'http://www.google.com/calendar/feeds/' +
                    calendarAddress + 
                    '/public/full';
  loadCalendar(calendarUrl, dbaCal.count);
}

/**
 * Uses Google data JS client library to retrieve a calendar feed from the specified
 * URL.  The feed is controlled by several query parameters and a callback 
 * function is called to process the feed results.
 *
 * @param {string} calendarUrl is the URL for a public calendar feed
 */  
function loadCalendar(calendarUrl, maxResults) {
  var service = new 
      google.gdata.calendar.CalendarService('gdata-js-client-samples-simple');
  var query = new google.gdata.calendar.CalendarEventQuery(calendarUrl);
  query.setOrderBy('starttime');
  query.setSortOrder('ascending');
  query.setFutureEvents(true);
  query.setSingleEvents(true);
  query.setMaxResults(maxResults);
	
  service.getEventsFeed(query, listEvents, handleGDError);
}

/**
 * Callback function for the Google data JS client library to call when an error
 * occurs during the retrieval of the feed.  Details available depend partly
 * on the web browser, but this shows a few basic examples. In the case of
 * a privileged environment using ClientLogin authentication, there may also
 * be an e.type attribute in some cases.
 *
 * @param {Error} e is an instance of an Error 
 */
function handleGDError(e) {
  document.getElementById('jsSourceFinal').setAttribute('style', 
      'display:none');
  if (e instanceof Error) {
    /* alert with the error line number, file and message */
    alert('Error at line ' + e.lineNumber +
          ' in ' + e.fileName + '\n' +
          'Message: ' + e.message);
    /* if available, output HTTP error code and status text */
    if (e.cause) {
      var status = e.cause.status;
      var statusText = e.cause.statusText;
      alert('Root cause: HTTP error ' + status + ' with status text of: ' + 
            statusText);
    }
  } else {
    alert(e.toString());
  }
}

/**
 * Callback function for the Google data JS client library to call with a feed 
 * of events retrieved.
 *
 * Creates an unordered list of events in a human-readable form.  This list of
 * events is added into a div called 'events'.  The title for the calendar is
 * placed in a div called 'calendarTitle'
 *
 * @param {json} feedRoot is the root of the feed, containing all entries 
 */ 
function listEvents(feedRoot) {
//console.log(dbaCal);
  var entries = feedRoot.feed.getEntries();
  var container = document.getElementById( dbaCal.container );

  /* loop through each event in the feed */
  var len = entries.length;
  for (var i = 0; i < len; i++) {
    var entry = entries[i];

    /* append the list item onto the unordered list */
    container.appendChild( getEvent(entry) );
  }
//  eventDiv.appendChild(container);
}

function getContainer() {
	var returnVal;
	dbaCal.type === 'sidebar' ? returnVal = document.getElementById('eventList') : returnVal = document.getElementById('eventTable');
	console.log(returnVal);
	return returnVal;
}

function getEvent(entry) {
	var returnVal;
	dbaCal.type === 'sidebar' ? returnVal = renderListItem(entry) : returnVal = renderTableItem(entry);	
	return returnVal;
}


function renderTableItem(entry) {
   var title = entry.getTitle().getText();
    var startDateTime = null;
    var startJSDate = null;
    var times = entry.getTimes();
    if (times.length > 0) {
      startDateTime = times[0].getStartTime();
      startJSDate = startDateTime.getDate();
    }
  
    var dateString = (startJSDate.getMonth() + 1) + "/" + startJSDate.getDate();
    if (!startDateTime.isDateOnly()) {
      dateString += " " + startJSDate.getHours() + ":" + 
          padNumber(startJSDate.getMinutes());
    }

	var tr = document.createElement('tr');
	var cellDate = document.createElement('td');
    /* if we have a link to the event, create an 'a' element */

	  var format = 'ddd mmm d, ';
	  if ( ! startDateTime.isDateOnly() ) {
		format += 'h:MM TT';
	  }

	  cellDate.appendChild( document.createTextNode( dateFormat( startJSDate, format ) ) );  
	  
  	  var cellTitle = document.createElement('td');
	  cellTitle.appendChild ( document.createTextNode(title) );
	  tr.appendChild( cellDate );	  
	  tr.appendChild( cellTitle );
      
	  return tr;
}

function renderListItem(entry) {
    var title = entry.getTitle().getText();
    var startDateTime = null;
    var startJSDate = null;
    var times = entry.getTimes();
    if (times.length > 0) {
      startDateTime = times[0].getStartTime();
      startJSDate = startDateTime.getDate();
    }
  
    var dateString = (startJSDate.getMonth() + 1) + "/" + startJSDate.getDate();
    if (!startDateTime.isDateOnly()) {
      dateString += " " + startJSDate.getHours() + ":" + 
          padNumber(startJSDate.getMinutes());
    }

	var li = document.createElement('li');

    /* if we have a link to the event, create an 'a' element */
      var strongTitle = document.createElement('strong');
	  strongTitle.appendChild( document.createTextNode(title) );
	  li.appendChild(strongTitle);
  	  li.appendChild( document.createElement('br') );

	  li.appendChild( document.createTextNode( dateFormat( startJSDate, 'ddd, mmm d' ) )  );

  	 
      if ( ! startDateTime.isDateOnly() ) {
      	li.appendChild( document.createTextNode( " at " + startJSDate.format('h:MM TT') ) );
	  }
	  return li;
}


google.setOnLoadCallback(init);
//-->