define(function () {
	"use strict";

	var oPage;

	function promptValueSaved() {
	};


	promptValueSaved.prototype.draw = function (oControlHost) {
		oPage = oControlHost.page;

		var elDate = oControlHost.container;
		elDate.innerHTML =
		'<style>' +
			'.myButtonDate { height:32px; width:180px; cursor:pointer; margin-left:5px; color:#4178BE; font-size:14px; padding:6px 12px 6px 12px; background-color:white; border:1px solid #4178BE; }' +
			'.myButtonDate:hover { background-color:#4178BE; color:white; border:1px solid #4178BE; }' +
		'</style>' +
		'<button class="myButtonDate btnSavePromptValues" type="button">Save Prompt Values</button>' +
		'<button class="myButtonDate btnFetchPromptSelections" type="button">Fetch Prompt Selections</button>';

		elDate.querySelector(".btnSavePromptValues").onclick = buttonActionSavePromptSelections;
		elDate.querySelector(".btnFetchPromptSelections").onclick = buttonActionFetchPromptSelections;

	};


	/*
	 *
	 * This function coordinates the basic operations of this program as so:
	 * 1. Loop through the prompts on the page
	 * 2. For each prompt look to see if there is a cookie with the naming convention cog<prompt name> containing prompt values 
	 * 3. Apply the saved values to each prompt
	 * 
	 * Note:
	 * The prompt names must not contain spaces or special characters
	 * The prompt names must match the prompt names in subsequent reports
	 * Cookie values are JSON encoded and ready for use
	 */
	function buttonActionFetchPromptSelections() {
		// Get the current prompt value
		// Create the report object
		// Create an array of prompt controls
		var aPromptControls = oPage.getAllPromptControls();

		// Determine
		var loadedValues = false;

		// Loop through the prompt controls on this page
		for (var i = 0; i < aPromptControls.length; i++) {

			// For each prompt control ...
			var currentPrompt = aPromptControls[i];

			// Create the cookie name
			var cookieName = "cog" + currentPrompt.name;


			// Fetch the cookie values (if they exist) as a JavaScript object
			var JSONEncodedPromptSelections = fetchCookie(cookieName);

			if (JSONEncodedPromptSelections) {
				if (JSONEncodedPromptSelections.length > 0) {

					// Apply cookie values to prompt
					currentPrompt.setValues(JSONEncodedPromptSelections);

					loadedValues = true;
				};
			};
		}; // end for 

		if (loadedValues) {
			alert("Your personal default prompt selections have been loaded. You may now edit them as required and press the Save Prompt Selections button.");
		}

		// Return false, also in an effort to stop the onClick event from propagating to other controls
		return false;
	};


	/*
	  *
	  * This function parses the browser cookie string looking for the cookie 
	  * and passing it to the calling function
	  * @cookieName is the name of the cookie we wish to find
	  *
	 */
	function fetchCookie(passedCookieName) {
		// Create an array of strings from the document cookie object using the split method to separate the cookies
		var aCookies = document.cookie.split(";");

		//create a variable to hold the cookie value
		var cookie = "";

		// Loop through the cookie array to find cognosPrompts
		for (var i = 0; i < aCookies.length; i++) {
			var currentCookie = aCookies[i];

			// The = sign separates the cookie name from the cookie value
			var signLocation = currentCookie.indexOf("=");

			var currentCookieName = currentCookie.substr(0, signLocation);

			var regexPattern = passedCookieName.valueOf();
			if (currentCookieName.match(regexPattern)) {
				cookie = currentCookie.substr(signLocation + 1, currentCookie.length);
			}
		}

		// Convert the JavaScript object to useable form
		cookie = eval(cookie);

		return cookie;
	};


//  Set


	function buttonActionSavePromptSelections() {
		// Get the current prompt value
		// Create an array of prompt controls
		var aPromptControls = oPage.getAllPromptControls();

		// Loop through the prompt controls on this page
		for (var i = 0; i < aPromptControls.length; i++) {
			// For each prompt control, call a function to JSON encode the user selections (prompt values)
			var currentPrompt = aPromptControls[i];

			// Create the cookie name
			var cookieName = "cog" + currentPrompt.name;

			// Now save the JSON into a cookie
			storeCookie(cookieName, JSON.stringify(currentPrompt.getValues()));
		};

		alert("Your personal default prompt selections have been saved. You may now close this report.");

		// Return false, also in an effort to stop the onClick event from propagating to other controls
		return false;
	};

	/*
	 * 
	 * This function creates a cookie
	 * @cookieName is the name of the cookie to be created
	 * @cookieValue is the value to be used to create the cookie
	 * The date is always set to expire 1 January 2100 to ensure the cookie is effectively permanent
	 * 
	 */
	function storeCookie(cookieName, cookieValue) {
		// Set the cookie expiry date to 1 January 2100 to ensure it does not expire
		var expDate = new Date();
		expDate.setFullYear(2100, 0, 1);
		document.cookie = cookieName + "=" + cookieValue + "; expires=" + expDate.toUTCString();
	};

	return promptValueSaved;
}
);