$(document).ready(function() {
  $('form').submit(function() {     
    $(this)
      .find('input[type="submit"]')
      .attr({'disabled': true, 'value': 'Please Wait...'});
  });
});

jQuery.fn.bindReadingCalculator = function(attributes) {
  function checkTracking() {
    if (($('#reading_value').val() != "") && ($('#reading_date').val() != "")){
      $('#tracking').attr('disabled', false);
    }else{
      $('#tracking').attr('disabled', true);
    }
  }
  
  function calculate() {
    if (!$('#reading_date').val() == '' && !$('#reading_value').val() == '') {
      $('input[type="submit"]').attr('disabled', false);
      $('input[type="submit"]').show('slide');
      
      var kmsTravelled = parseInt($('#reading_value').val()) - startOfYearValue;
      var daysThisFbtYear = Math.round((Date.parse($('#reading_date').val()) - clientStartOfYear) / 86400000)+1;
      daysThisFbtYear < 0 ? daysThisFbtYear = 0 : daysThisFbtYear;
      var totalRequired = Math.round((packageKms/365)*(((startOfNextFbtYear - clientStartOfYear) / 86400000)))-1;
                  
      if (isNaN(kmsTravelled)) {
        kmsTravelled = 0;
      } else {
        if(daysThisFbtYear > 0){
          var requiredKms = Math.round((packageKms/365)*daysThisFbtYear);
          var annualisedKms = Math.round(kmsTravelled / daysThisFbtYear * daysInThisFbtYear);          
        }else{
          var requiredKms = 0;
          var annualisedKms = 0;
        }
        
        $('#on-track').removeClass('good bad-cross');
        $('#is-satisfied').removeClass('good bad');
        
        if (annualisedKms > packageKms) {
          $('#on-track')
            .addClass('good-cross')
            .text('You\'re on track');
        } else {
          $('#on-track')
            .addClass('bad-cross')
            .text('You\'re not on track');
        }
        
        if ((kmsTravelled >= totalRequired)) {            
          $('#is-satisfied')
            .addClass('good')
            .text('You have satisfied the FBT requirements');
            
          $('#compensation-kms').hide();
        } else {
          $('#is-satisfied')
            .addClass('bad')
            
          if (annualisedKms >= packageKms) {
            $('#is-satisfied')        
              .html(
                "To remain on track and ensure you do not create an FBT liability at the end of the FBT year you must:<br /><br />Travel <strong>"+(totalRequired - kmsTravelled)+"</strong>kms by the 31st March which equates to <strong>"+Math.round((totalRequired - kmsTravelled)  /  ((startOfNextFbtYear - Date.parse($('#reading_date').val())) / 86400000))+"</strong>kms per day."
              );
          }else{
            $('#is-satisfied')        
              .html(
                "To satisfy the FBT requirements and ensure you do not create an FBT liability at the end of the FBT year you must:<br /><br />Travel <strong>"+(totalRequired - kmsTravelled)+"</strong>kms by the 31st March which equates to <strong>"+Math.round((totalRequired - kmsTravelled) / ((startOfNextFbtYear - Date.parse($('#reading_date').val())) / 86400000))+"</strong>kms per day."
              );
          }
          
          //$('#additional-kms').text(requiredKms - kmsTravelled);
          //$('#daily-kms').text(Math.round((requiredKms - kmsTravelled) / Math.round((startOfNextFbtYear - Date.parse($('#reading_date').val())) / 86400000)));
          
          $('#compensation-kms').show();
        }
        
        $('#annualised-kms').text(annualisedKms);
        
        // Show results if hidden
        if ($('#results').css('display') == 'none') {
          $('#results').show('scroll');
        }
      }
      
      $('#days-in-fbt-year').text(daysThisFbtYear);
      $('#kms-travelled').text(kmsTravelled);
    } else {
      $('input[type="submit"]').attr('disabled', true);
      $('input[type="submit"]').hide('slide');
    }
  }
  
  // Gather attributes
  var firstReadingYearDate   = attributes['firstReadingYearDate'];
  var recentReadingDate  = attributes['recentReadingDate'];
  var recentReadingValue = parseInt(attributes['recentReadingValue']);
  var startOfNextFbtYear = new Date((Date.today().getMonth() < 3 ? Date.today().getFullYear() : Date.today().getFullYear() + 1), 3, 1);
  var daysInThisFbtYear = 365;
  var clientStartOfYear = attributes['clientStartOfYear']
  var firstReadingEverValue  = parseInt(attributes['firstReadingEverValue']);
  var startOfYearValue = parseInt(attributes['startOfYearReading']);
  var packageKms        = parseInt(attributes['requiredKms']);
  var startReadingSupplied = parseInt(attributes['startReadingSupplied']);
  // Bind listeners and date picker
  $(this)
    .submit(function() {
      if (!$(this).hasClass('confirmed') && !$('#end-record').dialog('isOpen')) {
        var date = $('#reading_date').val().split('-');
        var readingValue = parseInt($('#reading_value').val());
        if (readingValue < recentReadingValue || readingValue < startOfYearValue) {
          $('#error-dialog').dialog('open');
        } else if(date[0].length != 4 || parseInt(date[1]) > 12 || parseInt(date[2]) > 31){
          $('#bad-date-dialog').dialog('open');
        } else {  
          $('#confirm-reading-value').text(readingValue);
          $('#confirm-reading-date').text($('#reading_date').val());
          $('#confirmation-dialog').dialog('open');
        }
      
        return false;
      }else if($('#end-record').dialog('isOpen')){
        var readingValue = parseInt($('#last_reading_value').val());
        if(readingValue < startOfYearValue){
          alert("Please enter a value over "+startOfYearValue+"kms.");
          return false;
        }else{
          $('#last_reading_date').attr('disabled',"");
          return true;
        }        
      } else {
        return true;
      }
    });
  
  //$('#reading_date')
  //  .change(function(){
  //    $('#results').hide("slow");
  //    checkTracking();
  //  })
  //  .datepicker({
  //    minDate: recentReadingDate.clone().add(1).days(),
  //    maxDate: '+0d',
  //    dateFormat: 'yy-mm-dd'
  //  });
  //
  //$('#reading_value')
  //  .change(function(){
  //    $('#results').hide("slide");
  //    $('input[type="submit"]').attr('disabled', true);
  //    checkTracking();
  //  })
  //  .keyup(function(){
  //    $('#results').hide("slide");
  //    $('input[type="submit"]').attr('disabled', true);
  //    checkTracking();
  //  });
  //
  //
  //$('#tracking')
  //  .click(calculate)
  

  $('#reading_date')
    .datepicker({
      minDate: recentReadingDate.clone().add(1).days(),
      maxDate: '+0d',
      dateFormat: 'yy-mm-dd'
    });
  
  $('#calculate_button')
    .click(calculate)
    
  $('#error-dialog').dialog({
  	modal: true,
  	autoOpen: false,
  	overlay: {
  		backgroundColor: '#000',
  		opacity: 0.5
  	},
  	close: function() {
  	  $('input[type="submit"]')
		    .val('Record Reading')
		    .attr('disabled', false);
		},
  	buttons: {
  		Ok: function() {
  			$(this).dialog('close');
  			$('input[type="submit"]')
  			  .val('Record Reading')
  			  .attr('disabled', false);
  		}
  	}
  });
  
  $('#bad-date-dialog').dialog({
    modal: true,
  	autoOpen: false,
  	width: 600,
  	overlay: {
  		backgroundColor: '#000',
  		opacity: 0.5
  	},
  	close: function() {
  	  $('input[type="submit"]')
		    .val('Record Reading')
		    .attr('disabled', false);
		},
  	buttons: {
  		Ok: function() {
  			$(this).dialog('close');
  			$('input[type="submit"]')
  			  .val('Record Reading')
  			  .attr('disabled', false);
  		}
    }
  });
  
  $("#whatis").dialog({
	  modal: true,
  	autoOpen: false,
  	width: 600,
		overlay: {
			backgroundColor: '#000',
			opacity: 0.5
		},
		close: function() {
  	  $('input[type="submit"]')
		    .val('Record Reading')
		    .attr('disabled', false);
		},
		buttons: {
		  'Close': function() {
				$(this).dialog('close');
				$('input[type="submit"]')
  			  .val('Record Reading')
  			  .attr('disabled', false);
			}
		}
	});
  
  $("#confirmation-dialog").dialog({
		modal: true,
  	autoOpen: false,
  	width: 600,
		overlay: {
			backgroundColor: '#000',
			opacity: 0.5
		},
		close: function() {
  	  $('input[type="submit"]')
		    .val('Record Reading')
		    .attr('disabled', false);
		},
		buttons: {
			'Confirm Reading': function() {
			  if($('#legal-dec').attr("checked")){
				  $(this).dialog('close')
          $('#record-reading-form')
            .addClass('confirmed')
            .submit();
        }else{
          $('#please-check').show("slide");
        }
			},
			Cancel: function() {
				$(this).dialog('close')
				$('input[type="submit"]')
  			  .val('Record Reading')
  			  .attr('disabled', false);
			}
		}

	});
	
	
	if(startReadingSupplied != 1){
	  $("#end-record").dialog({
	  	modal: true,
    	autoOpen: false,
    	width: 600,
    	closeOnEscape: false,
	  	overlay: {
	  		backgroundColor: '#000',
	  		opacity: 0.5
	  	},
	  	close: function() {
	  	  alert("You must supply a reading for the beginning of this FBT year to continue");
	  	},
	  	buttons: {
	  	  'Record Reading': function() {
	  	    $('#end-record form')
	  	      .addClass('confirmed')
	  	      .submit();
	  	  }
	  	}
	  });
	  $("#end-record").dialog('open');
	  $('#reading_date').attr('disabled','1');
	  $('#reading_value').attr('disabled','1');
	}
}