var contactSelectorAction = 'calendars-contacts';

function uixEarlierDate(date1, date2) {
  // can this be done in a sane way?
  //   cuicui = 'year';
  if (date1 && date2) {
    if (date1.getYear()  < date2.getYear()) return date1;
    if (date1.getYear()  > date2.getYear()) return date2;
    // same year
    //   cuicui += '/month';
    if (date1.getMonth() < date2.getMonth()) return date1;
    if (date1.getMonth() > date2.getMonth()) return date2;
    //   // same month
    //   cuicui += '/date';
    if (date1.getDate() < date2.getDate()) return date1;
    if (date1.getDate() > date2.getDate()) return date2;
  }
  // same day
  return null;
}

function validateDate(date, label) {
  var result, dateValue;

  dateValue = date.calendar.prs_date(date.value);
  if (date.value.length != 10 || !dateValue) {
    alert(label);
    result = false;
  } else
    result = dateValue;

  return result;
}

function validateTaskEditor() {
  var e, startdate, enddate, tmpdate;

  e = document.getElementById('summary');
  if (e.value.length == 0
      && !confirm(labels.validate_notitle))
    return false;

  e = document.getElementById('startTime_date');
  if (!e.disabled) {
    startdate = validateDate(e, labels.validate_invalid_startdate);
    if (!startdate)
      return false;
  }

  e = document.getElementById('dueTime_date');
  if (!e.disabled) {
    enddate = validateDate(e, labels.validate_invalid_enddate);
    if (!enddate)
      return false;
  }

  if (startdate && enddate) {
    tmpdate = uixEarlierDate(startdate, enddate);
    if (tmpdate == enddate) {
      //     window.alert(cuicui);
      alert(labels.validate_endbeforestart);
      return false;
    }
    else if (tmpdate == null /* means: same date */) {
      // TODO: check time
      var start, end;
      
      start = parseInt(document.forms[0]['startTime_time_hour'].value);
      end = parseInt(document.forms[0]['dueTime_time_hour'].value);
      
      if (start > end) {
        alert(labels.validate_endbeforestart);
        return false;
      }
      else if (start == end) {
        start = parseInt(document.forms[0]['startTime_time_minute'].value);
        end = parseInt(document.forms[0]['dueTime_time_minute'].value);
        if (start > end) {
          alert(labels.validate_endbeforestart);
          return false;
        }
      }
    }
  }

  return true;
}

function toggleDetails() {
  var div = $("details");
  var buttons = $("buttons");
  var buttonsHeight = buttons.clientHeight * 3;

  if (div.style.visibility) {
    div.style.visibility = null;
    window.resizeBy(0, -(div.clientHeight + buttonsHeight));
    $("detailsButton").innerHTML = labels["Show Details"];
  } else {
    div.style.visibility = 'visible;';
    window.resizeBy(0, (div.clientHeight + buttonsHeight));
    $("detailsButton").innerHTML = labels["Hide Details"];
  }

  return false;
}

function toggleCycleVisibility(node, nodeName, hiddenValue) {
  var spanNode = $(nodeName);
  var newVisibility = ((node.value == hiddenValue) ? null : 'visible;');
  spanNode.style.visibility = newVisibility;

  if (nodeName == 'cycleSelectionFirstLevel') {
    var otherSpanNode = $('cycleSelectionSecondLevel');
    if (!newVisibility)
      {
        otherSpanNode.superVisibility = otherSpanNode.style.visibility;
        otherSpanNode.style.visibility = null;
      }
    else
      {
        otherSpanNode.style.visibility = otherSpanNode.superVisibility;
        otherSpanNode.superVisibility = null;
      }
  }
}

function addContact(tag, fullContactName, contactId, contactName, contactEmail) {
  var uids = $('uixselector-participants-uidList');
  log ("contactId: " + contactId);
  if (contactId)
    {
      var re = new RegExp("(^|,)" + contactId + "($|,)");

      log ("uids: " + uids);
      if (!re.test(uids.value))
        {
          log ("no match... realling adding");
          if (uids.value.length > 0)
            uids.value += ',' + contactId;
          else
            uids.value = contactId;

          var names = $('uixselector-participants-display');
          names.innerHTML += ('<li onmousedown="return false;"'
                              + ' onclick="onRowClick(event);"><img src="'
                              + ResourcesURL + '/abcard.gif" />'
                              + contactName + '</li>');
        }
      else
        log ("match... ignoring contact");
    }

  return false;
}

function onTimeControlCheck(checkBox) {
  var inputs = checkBox.parentNode.getElementsByTagName("input");
  var selects = checkBox.parentNode.getElementsByTagName("select");
  for (var i = 0; i < inputs.length; i++)
    if (inputs[i] != checkBox)
      inputs[i].disabled = !checkBox.checked;
  for (var i = 0; i < selects.length; i++)
    if (selects[i] != checkBox)
      selects[i].disabled = !checkBox.checked;
}

function saveEvent(sender) {
  if (validateTaskEditor())
    document.forms['editform'].submit();

  return false;
}

function startDayAsShortString() {
  return dayAsShortDateString($('startTime_date'));
}

function dueDayAsShortString() {
  return dayAsShortDateString($('dueTime_date'));
}

this._getDate = function(which) {
  var date = window.timeWidgets[which]['date'].valueAsDate();
  date.setHours( window.timeWidgets[which]['hour'].value );
  date.setMinutes( window.timeWidgets[which]['minute'].value );

  return date;
}

  this._getShadowDate = function(which) {
    var date = window.timeWidgets[which]['date'].getAttribute("shadow-value").asDate();
    var intValue = parseInt(window.timeWidgets[which]['hour'].getAttribute("shadow-value"));
    date.setHours(intValue);
    intValue = parseInt(window.timeWidgets[which]['minute'].getAttribute("shadow-value"));
    date.setMinutes(intValue);
    //   window.alert("shadow: " + date);

    return date;
  }

    this.getStartDate = function() {
      return this._getDate('start');
    }

      this.getDueDate = function() {
	return this._getDate('due');
      }

	this.getShadowStartDate = function() {
	  return this._getShadowDate('start');
	}

	  this.getShadowDueDate = function() {
	    return this._getShadowDate('due');
	  }

	    this._setDate = function(which, newDate) {
	      window.timeWidgets[which]['date'].setValueAsDate(newDate);
	      window.timeWidgets[which]['hour'].value = newDate.getHours();
	      var minutes = newDate.getMinutes();
	      if (minutes % 15)
		minutes += (15 - minutes % 15);
	      window.timeWidgets[which]['minute'].value = minutes;
	    }

	      this.setStartDate = function(newStartDate) {
		this._setDate('start', newStartDate);
	      }

		this.setDueDate = function(newDueDate) {
		  //   window.alert(newDueDate);
		  this._setDate('due', newDueDate);
		}

		  this.onAdjustDueTime = function(event) {
		    if (!window.timeWidgets['due']['date'].disabled) {
		      var dateDelta = (window.getStartDate().valueOf()
				       - window.getShadowStartDate().valueOf());
		      var newDueDate = new Date(window.getDueDate().valueOf() + dateDelta);
		      window.setDueDate(newDueDate);
		    }
		    window.timeWidgets['start']['date'].updateShadowValue();
		    window.timeWidgets['start']['hour'].updateShadowValue();
		    window.timeWidgets['start']['minute'].updateShadowValue();
		  }

		    this.initTimeWidgets = function (widgets) {
		      this.timeWidgets = widgets;

		      Event.observe(widgets['start']['date'], "change", this.onAdjustDueTime, false);
		      Event.observe(widgets['start']['hour'], "change", this.onAdjustDueTime, false);
		      Event.observe(widgets['start']['minute'], "change", this.onAdjustDueTime, false);
		    }

		      function onStatusListChange(event) {
			var value = $("statusList").value;
			var statusTimeDate = $("statusTime_date");
			var statusPercent = $("statusPercent");

			if (value == "WONoSelectionString") {
			  statusTimeDate.disabled = true;
			  statusPercent.disabled = true;
			  statusPercent.value = "";
			}
			else if (value == "0") {
			  statusTimeDate.disabled = true;
			  statusPercent.disabled = false;
			}
			else if (value == "1") {
			  statusTimeDate.disabled = true;
			  statusPercent.disabled = false;
			}
			else if (value == "2") {
			  statusTimeDate.disabled = false;
			  statusPercent.disabled = false;
			  statusPercent.value = "100";
			}
			else if (value == "3") {
			  statusTimeDate.disabled = true;
			  statusPercent.disabled = true;
			}
			else {
			  statusTimeDate.disabled = true;
			}
		      }

function initializeStatusLine() {
  var statusList = $("statusList");
  Event.observe(statusList, "mouseup", onStatusListChange, false);
}

function onTaskEditorLoad() {
  assignCalendar('startTime_date');
  assignCalendar('dueTime_date');
  assignCalendar('statusTime_date');

  initializeStatusLine();
}

FastInit.addOnLoad(onTaskEditorLoad);