//    Licensed Materials - Property of IBM
//
//    IBM Cognos Products: cogadmin
//
//    (C) Copyright IBM Corp. 2005, 2010
//
//    US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
//
//
// Copyright (C) 2008 Cognos ULC, an IBM Company. All rights reserved.
// Cognos (R) is a trademark of Cognos ULC, (formerly Cognos Incorporated).

//----------------------------------------------------------

com.cognos.admin.ObjectFactory("com.cognos.admin.util.ClientState"); 
/*
 * This is a J2HTML client state management class
 * 
 * 
 */

com.cognos.admin.util.ClientState = function (fragId) {
	this.fragId = fragId;
	this.states = {};
	this.skipPersistStates = [];
	this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE] = {};
};

com.cognos.admin.util.ClientState.VERSION = "0.1.0";
com.cognos.admin.util.ClientState.J2HTML_UI_STATE = "j2html-ui-state"
com.cognos.admin.util.ClientState.SELECTED_ROW = "selectedRow";
com.cognos.admin.util.ClientState.GROUP_ACTION_ROWS = "grpActionRows";
com.cognos.admin.util.ClientState.BREADCRUMBS = "breadcrumbs";
com.cognos.admin.util.ClientState.SORT = "sort";
com.cognos.admin.util.ClientState.SCROLL_TOP = "scrollTop";
com.cognos.admin.util.ClientState.SCROLL_LEFT = "scrollLeft";
com.cognos.admin.util.ClientState.COGADMIN_WINDOW_STATE = "cogadminWindowState";

com.cognos.admin.util.ClientState.prototype = {
	restoreStates : function () {
		if (com.cognos.admin.publicParam.states[this.fragId]){
			this.states = com.cognos.admin.publicParam.states[this.fragId]; 
		} 
	},
	
	saveStates : function () {
		var isEmpty = true;
		
		for (var o in this.states) {
			if (typeof this.states[o] !== 'function') {
				if (this.states[o]){
					isEmpty = false;
					break;
				}
			}
		}
		
		if (!isEmpty) {
			if (!com.cognos.admin.publicParam.states[this.fragId])
				com.cognos.admin.publicParam.states[this.fragId] = [];
				
			com.cognos.admin.publicParam.states[this.fragId] = this.states;
		}
	},
	
	/*
	 * format the "," as a seperator's string to array
	 */
	formatedString : function (value){
		return value.toString().split(",");
	},
	
	// add a state param as a array
	addState : function (key,value,isUIState) {
		if (key) {
			var ret = this.formatedString(value);
			var state = isUIState?this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE]:this.states;
		 	if (!state[key] || state[key].length == 0){
				state[key] = ret;
			} else if (state[key] instanceof Array) {
				state[key] = _F_Array.unique(state[key].concat(ret));
			} 
			this.saveStates();
		}
	},
	
	// add a state param as a single type
	setState : function (key,value,isUIState) {
		if (key) {
			var state = isUIState?this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE]:this.states;
		 	state[key] = value;
			this.saveStates();
		}
	},
	
	getState : function (key,isUIState) {
		var state = isUIState?this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE]:this.states;
		
		if (state[key] === undefined)
			return;
			
		return state[key];
	},
	/**
	 * Remove the input value from the array, or set the value to "" for the string
	 * @param {string} key
	 * @param {Object} value
	 * @param {Boolean} isUIState whether is a j2html_ui_state
	 */
	removeState : function (key,value,isUIState) {
		var state = isUIState?this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE]:this.states;
		if (state[key]){
			if (state[key] instanceof Array){
				_F_Array.remove(state[key],value);
			} else {
				this.clearState(key);
			}
			
			this.saveStates();
		}
	},
	/**
	 * Get rid of the key from the state set.
	 * @param {String} key
	 * @param {Boolean} isUIState
	 */
	clearState : function (key,isUIState) {
		var state = isUIState?this.states[com.cognos.admin.util.ClientState.J2HTML_UI_STATE]:this.states;
		
		if (state[key]){
			if (state[key] instanceof Array){
				state[key] = [];
			} else if (typeof state[key] == "object"){
				state[key] = null;
			} else {
				state[key] = "";
			}
			this.saveStates();
		}
	},
	/**
	 * remove the client state form the round trip list
	 * @param {Object} skipPersistStates could be either a string (option: seperated by ",") or an array
	 */
	setSkipPersistStates : function (skipPersistStates){
		if (skipPersistStates){
			if (typeof skipPersistStates == "string"){
				this.skipPersistStates = skipPersistStates.split(",");
			} else {
				this.skipPersistStates = skipPersistStates;
			}
		}
	},
	
	getSkipPersistStates : function (){
		return this.skipPersistStates;
	},
	
	clearSkipPersistStates : function () {
		var skipPersistStates = this.getSkipPersistStates();
		for (var i = 0; i < skipPersistStates.length; i++){
			this.clearState(skipPersistStates[i],true);
		}
	},
	
	getStateURL : function () {
		var str = "";
		this.clearSkipPersistStates();
		for (var o in this.states){
			//this is to filter out the expended funcitons for Array object.
			if (!(this.states[o] instanceof Function)){
				var param;
				if (typeof this.states[o] == "object"){
					param = com.cognos.admin.util.Tools.JSON.stringify(this.states[o]);
				} else {
					param = this.states[o];
				}
				str = com.cognos.admin.util.Tools.generateQueryString(str,o,param,true);
			}
		}
		return str;
	}
};