// ----------------------------------------------
// File:		SearchValidationService.js
// Author:		Nathan Derksen
// Description:	A class that holds the available service methods, along with response handlers.
// Example:
// SearchValidationService.getInstance().isSearchEmpty();
// ----------------------------------------------


// ----------------------------------------------
// Function:	SearchService
// Author:		Nathan Derksen
// Description:	Base class
// Inputs:		<none>
// Returns:		<nothing>
// ----------------------------------------------
function SearchValidationService()
{
}

// ----------------------------------------------
// Function:	SearchValidationService.isSearchEmpty
// Author:		Nathan Derksen
// Description:	Calls the service to find if the given search is an empty search or not
// Inputs:		<Object> searchCriteria - An object of properties to search on
//				<Number> startIndex - The zero-based index of which row to start at in the total results
//				<Number> maxResults - The maximum number of results to return
// Returns:		<nothing>
// ----------------------------------------------
SearchValidationService.prototype.isSearchEmpty = function(searchTerm, searchCriteria)
{
	try
	{
		if (searchCriteria != null && typeof(searchCriteria) != "undefined")
		{
			var criteriaNames = ["categories", "gemstones", "materials", "priceRanges", "preciousMetals", "pearlTypes"];
			
			for (var i=0; i < criteriaNames.length; i++)
			{
				if (typeof(searchCriteria[criteriaNames[i]]) == "undefined")
				{
					searchCriteria[criteriaNames[i]] = 0;
				}
			}
			
			var categories = Number(searchCriteria["categories"]);
			var gemstones = Number(searchCriteria["gemstones"]);
			var materials = Number(searchCriteria["materials"]);
			var priceRanges = Number(searchCriteria["priceRanges"]);
			var preciousMetals = Number(searchCriteria["preciousMetals"]);
			var pearlTypes = Number(searchCriteria["pearlTypes"]);

			if (searchTerm != "" || (searchTerm == "" && 
				(categories > 0) || (gemstones > 0) ||
				(materials > 0) || (priceRanges > 0) ||
				(preciousMetals > 0) || (pearlTypes > 0)
				)
			)
			{
				generateEvent("onSearchCheckInitiated");
				PageMethods.GetCategoriesXmlForAdvancedSearch(searchTerm, categories, gemstones, materials, priceRanges, preciousMetals, pearlTypes, this.onResult, this.onError);
			}
		}
		else if (searchTerm != "")
		{
			generateEvent("onSearchCheckInitiated");
			PageMethods.GetCategoriesXmlForSearch(searchTerm, this.onResult, this.onError);
		}
	}
	catch (err)
	{
		Debug.error(err);
	}
};

// ----------------------------------------------
// Function:	SearchValidationService.onResult
// Author:		Nathan Derksen
// Description:	Callback from the successful completion of the service call
// Inputs:		<XMLElement> result - Handle to the results xml object
// Returns:		<nothing>
// ----------------------------------------------
SearchValidationService.prototype.onResult = function(result)
{
	try
	{
		if (result)
		{
			var resultElements = result.documentElement;
			var isEmpty = SearchFactory.getIsEmptyFromXML(resultElements);
			var errorMessage = SearchFactory.getErrorMessageFromXML(resultElements);
			var searchCriteria = SearchFactory.getSearchParamsFromXML(resultElements);
			var redirect = SearchFactory.getRedirectFromXML(resultElements);
			var didYouMean = SearchFactory.getDidYouMeanFromXML(resultElements);

			generateEvent("onSearchCheckComplete", isEmpty, errorMessage, searchCriteria, redirect, didYouMean.keyword, didYouMean.qs);
		}
		else
		{
			var error = new Object();
			error.name = "Service 'SearchValidationService' returned with no results";
			error.message = error.name;
			error.fileName = "SearchValidationService.js";
			error.lineNumber = "";
			Debug.error(error);
		}
	}
	catch (err)
	{
		Debug.error(err);
	}
};

// ----------------------------------------------
// Function:	SearchValidationService.onError
// Author:		Nathan Derksen
// Description:	Callback from the unsuccessful completion of the service call
// Inputs:		<XMLElement> result - Handle to the results xml object
// Returns:		<nothing>
// ----------------------------------------------
SearchValidationService.prototype.onError = function(result)
{
	var error = new Object();
	error.name = "Service 'SearchValidationService' returned with an error";
	error.message = result.get_message();
	error.fileName = "SearchValidationService.js";
	error.lineNumber = "";
	Debug.error(error);
};