/* 
Author: Robbie Mast en Bas van Elburg
Purpose of script: This Script determine if questions on a contract should be visable or invisable. 
Important: This script uses the Mootools framework.
*/

//Stores all dependencies from the invisible input field with id “DynamicContentList” to a Array.
function buildDependencies()
{
    var dependencyArray = new Array();
    var list = document.getElementById("DynamicContentList");

    if (list!=null)
    {            
        for (var i=0;i<list.length;i++)
	    {
	        dependencyArray[dependencyArray.length] = list.options[i].text.toUpperCase().split(";");
	    }
    }
    return dependencyArray;   
}

//Stores all DOM elements which contains the id value of “InsOption_” to a Array.
function getOptionElements()
{
    var arrayOptionElements = new Array();
    var elementList = $$('*');
          
    for(var i=0;i<elementList.length;i++)
    {
        var elementHasName = $chk(elementList[i].name);
                
        if(elementHasName == true)
        {
            var indexOfInsOption = elementList[i].name.indexOf("InsOption_");
			var indexOfIncidentOption = elementList[i].name.indexOf("IncidentOption_");
            var indexOfInsOptionDay = elementList[i].name.indexOf("Day");
            var indexOfInsOptionMonth = elementList[i].name.indexOf("Month");
            var indexOfInsOptionYear = elementList[i].name.indexOf("Year");
            
            if(indexOfInsOption == 0 && indexOfInsOptionDay ==-1 && indexOfInsOptionMonth ==-1 && indexOfInsOptionYear ==-1)
            {
                arrayOptionElements[arrayOptionElements.length] = elementList[i].name.substr(10, 6);
            }
				else if(indexOfIncidentOption == 0 && indexOfInsOptionDay ==-1 && indexOfInsOptionMonth ==-1 && indexOfInsOptionYear ==-1)
				{
					arrayOptionElements[arrayOptionElements.length] = elementList[i].name.substr(15, 6);
				}
            else
            {
                //do nothing.
            }                                    
        }                        
    }
    return arrayOptionElements;
}

function getInsOption(elm_i)
{
	var insOption = document.getElementsByName(elm_i)[0];
	return insOption;	
}

// This is de main function that initializes the dependencies from the do_dependencyArray to the webpage.
function do_init() {
	do_dependencyArray = buildDependencies();
	do_arrayOptionElements = getOptionElements();
	do_updateStatus();
		
	do_arrayOptionElements.each(function(el) {
		var elementName = '';
		if($chk(getInsOption('InsOption_'+el+'DateField'))) 
		{
			elementName='InsOption_'+el+'DateField';
		}
		else if($chk(getInsOption('InsOption_'+el))) 
		{ 
		    elementName = 'InsOption_'+el;
		}
		else if($chk(getInsOption('IncidentOption_'+el)))
		{
			elementName = 'IncidentOption_'+el;
		}
		else if($chk(getInsOption('IncidentOption_'+el+'DateField'))) 
		{ 
		    elementName = 'IncidentOption_'+el+'DateField';
		}
		else
        {
        	elementName = 'undefined';
        }
		//Ceck for empty elementName
		if(elementName == 'undefined')
		{
			//Do Nothing.	
		}
		else
		{
			getInsOption(elementName).addEvent('change',function(){ do_updateStatus();});
			getInsOption(elementName).addEvent('keyup',function(){ do_updateStatus();});
			getInsOption(elementName).addEvent('DIVOptionChangeEvent',function(){ do_updateStatus();});
		}
	});
}

// Update the visible or invisible status.
function do_updateStatus() 
{
	do_arrayOptionElements.each(function(el) 
	{
		do_setStatus(el);
	});
}

// Sets the visible or invisible status.
function do_setStatus(elem) 
{
	result = do_getVisibility(elem);
	if($chk($('InsOptionRow_'+elem)))
	{
	    $('InsOptionRow_'+elem).style.display = (result?'':'none');
	}
	else
	{
	    //do nothing
	}
}

function do_getVisibility(elm_i)
{
    var visibility = true; //Status of the childID visibility.
    var visibilityOfInsOptionRow; //Visibility status of the InsOptionRow
    var parentID; //ParentID to determines which InsOptionRow should not be visable.
    var loopready = false; //Loopready determines if de forloop should continue to run.
    var elementName = '';
        
    for(var i = 0; i<do_dependencyArray.length && loopready == false; i++) //Loop through the do_linkArray.
    {
        if(do_dependencyArray[i][3] == elm_i)//Check if the dom element is a Chil in de do_linkArray.
        {
           parentID = do_dependencyArray[i][0];
           if($chk($('InsOptionRow_'+parentID)))
           {
           		visibilityOfInsOptionRow = $('InsOptionRow_'+parentID).getStyle('display'); //Block = visable
       	   }
         
           if(visibilityOfInsOptionRow == 'none') //Check the visibility status of the InsOptionRow.
           {
                visibility = false; //If the visibility status is equal to "none" than the Child should not be visable. 
           }
           else
           {    
	         //determine the name for the Parent element.
            if($chk(getInsOption('InsOption_'+do_dependencyArray[i][0]+'DateField')))
				{
				    elementName='InsOption_'+do_dependencyArray[i][0]+'DateField';
				} 
				else if($chk(getInsOption('InsOption_'+do_dependencyArray[i][0])))
				{ 
					elementName = 'InsOption_'+do_dependencyArray[i][0];
				}

				else if($chk(getInsOption('IncidentOption_'+do_dependencyArray[i][0]+'DateField')))
				{ 
					elementName = 'IncidentOption_'+do_dependencyArray[i][0];
				}
				else if($chk(getInsOption('IncidentOption_'+do_dependencyArray[i][0])))
				{ 
					elementName = 'IncidentOption_'+do_dependencyArray[i][0];
				}
				else
        		{
        			elementName = 'undefined';
        		}
				//Ceck for empty elementName
				if(elementName == 'undefined')
				{
					//Do Nothing.	
				}
				else
				{
					var optionElement = getInsOption(elementName);
					var optionValue = optionElement.value;
					if (optionElement.type=="select-one")
					{
						for (var k=0; k<optionElement.length; ++k)
						{
							if (optionElement.value==optionElement[k].value)
							{
								optionValue = optionElement[k].text;
								break;
							}
						}
					}
					optionValue = optionValue.toUpperCase();
					//Determine if the child element should be visable.
					switch (do_dependencyArray[i][1])
					{
					    case "ISEQUALTO":
					    {
					        if (optionValue == do_dependencyArray[i][2])
					        {
					            visibility = true;
					            loopready = true;
					        }
					        else
					        {
					            visibility = false;
					        }
					        break;
					    }
					    case "ISNOTEQUALTO":
					    {
					        if (optionValue != do_dependencyArray[i][2])
					        {
					            visibility = true;
					            loopready = true;
					        }
					        else
					        {
					            visibility = false;
					        }
					        break;
					    }
					    case "ISCONTAINING":
					    {
					   
					        if (optionValue.indexOf(do_dependencyArray[i][2])!=-1)
					        {
					            visibility = true;
					            loopready = true;
					        }
					        else
					        {
					            visibility = false;
					        }
					        break;
					    }
					    case "ISLARGERTHEN":
					    {
					        if (optionValue > do_dependencyArray[i][2])
					        {
					            visibility = true;
					            loopready = true;
					        }
					        else
					        {
					            visibility = false;
					        }
					        break;
					    }
					    case "ISSMALLERTHEN":
					    {
					        if (optionValue < do_dependencyArray[i][2])
					        {
					            visibility = true;
					            loopready = true;
					        }
					        else
					        {
					            visibility = false;
					        }
					        break;
					    }
					    default:
					    {
					        //FOUT!!!
					        break;
					    }
					}
       			}
			}                       
        }
        else
        {
            //do nothing!
        }
    }  
    return visibility;
}