define([
"esri/symbols/SimpleFillSymbol",
"esri/Color", 
"esri/renderers/SimpleRenderer",
"esri/symbols/SimpleMarkerSymbol",
"esri/symbols/SimpleLineSymbol",
"esri/symbols/PictureMarkerSymbol"
        ],
   function(SimpleFillSymbol,
		   Color,
		   SimpleRenderer,
		   SimpleMarkerSymbol,
		   SimpleLineSymbol,
		   PictureMarkerSymbol){
    var privateValue = 0;
    return {
    	createRenderer:function(rendererConfig){
		var renderer = null;
		if(rendererConfig != undefined && rendererConfig != null && rendererConfig != "default")
		{
			switch(rendererConfig.type)
			{
				case "SimpleRenderer":
					var symbol = this.createSymbol(rendererConfig.symbol);
					renderer = new SimpleRenderer(symbol);
					break;
			}
		}
		return renderer;
    	},
		createSymbol:function(symbolConfig)
		{
			var symbol = null;
			switch(symbolConfig.type)
			{
				case "SimpleMarkerSymbol":
					symbol = this.createSimpleMarkerSymbol(symbolConfig);
					break;
				case "PictureMarkerSymbol":
					symbol = this.createPictureMarkerSymbol(symbolConfig);
					break;
				case "SimpleLineSymbol":
					symbol = this.createLineSymbol(symbolConfig);
					break;
				case "SimpleFillSymbol":
					symbol = this.creatFillSymbol(symbolConfig);
					break;
			}
			return symbol;
		},
		creatFillSymbol:function(symbolConfig)
		{
			var style;
			var symbol=null;
			var lineSymbol = this.createLineSymbol(symbolConfig.outline);
			switch(symbolConfig.style)
			{
				case "solid":
					style = SimpleFillSymbol.STYLE_SOLID;
					break;
				case "null":
					style = SimpleFillSymbol.STYLE_NULL;
					break;
				case "cross":
					style = SimpleFillSymbol.STYLE_CROSS;
					break;
				case "diagonal_cross":
					style = SimpleFillSymbol.STYLE_DIAGONAL_CROSS;
					break;
				case "backward_diagonal":
					style = SimpleFillSymbol.STYLE_BACKWARD_DIAGONAL;
					break;
				case "forward_diagonal":
					style = SimpleFillSymbol.STYLE_FORWARD_DIAGONAL;
					break;
				case "horizontal":
					style = SimpleFillSymbol.STYLE_HORIZONTAL;
					break;
				case "vertical":
					style = SimpleFillSymbol.STYLE_VERTICAL;
					break;
			}
			var color = new Color(symbolConfig.color);
			color.a=symbolConfig.alpha;
			symbol = new SimpleFillSymbol(style, lineSymbol,color);
			return symbol;
		},
		createSimpleMarkerSymbol:function(symbolConfig)
		{
			var style;
			var symbol = null;
			var lineSymbol = this.createLineSymbol(symbolConfig.outline);
			switch(symbolConfig.style)
			{
				case "circle":
					style = SimpleMarkerSymbol.STYLE_CIRCLE;
					break;
				case "cross":
					style = SimpleMarkerSymbol.STYLE_CROSS;
					break;
				case "diamond":
					style = SimpleMarkerSymbol.STYLE_DIAMOND;
					break;
				case "path":
					style = SimpleMarkerSymbol.STYLE_PATH;
					break;
				case "square":
					style = SimpleMarkerSymbol.STYLE_SQUARE;
					break;
				case "STYLE_X":
					style = SimpleMarkerSymbol.STYLE_X;
					break;
				default:
					style = SimpleMarkerSymbol.STYLE_CIRCLE;
					break;
			}
			symbol = new SimpleMarkerSymbol(style,symbolConfig.size,lineSymbol,new Color(symbolConfig.color));
			return symbol;
		},
		createLineSymbol:function(config)
		{
			var symbol=null;
			if(config != undefined && config != null)
			{
				switch(config.type)
				{
					case "SimpleLineSymbol":
						var style = this.parseLineStyle(config.style);
						symbol = new SimpleLineSymbol(style,
								new Color(config.color),
								config.width);
						break;
				}
			}
			return symbol;
		},
		parseLineStyle:function(style)
		{
			var returnStyle;
			switch(style)
			{
				case "solid":
					returnStyle = SimpleLineSymbol.STYLE_SOLID;
					break;
				case "dashdot":
					returnStyle = SimpleLineSymbol.STYLE_DASHDOT;
					break;
				case "dashdotdot":
					returnStyle = SimpleLineSymbol.STYLE_DASHDOT;
					break;
				case "dot":
					returnStyle = SimpleLineSymbol.STYLE_DOT;
					break;
				case "longdash":
					returnStyle = SimpleLineSymbol.STYLE_LONGDASH;
					break;
				case "longdashdot":
					returnStyle = SimpleLineSymbol.STYLE_LONGDASHDOT;
					break;
				case "null":
					returnStyle = SimpleLineSymbol.STYLE_NULL;
					break;
				case "shortdash":
					returnStyle = SimpleLineSymbol.STYLE_SHORTDASH;
					break;
				case "shortdashdot":
					returnStyle = SimpleLineSymbol.STYLE_SHORTDASHDOT;
					break;
				default:
					returnStyle = SimpleLineSymbol.STYLE_SOLID;
				break;
			}
			return returnStyle;
		},
		createPictureMarkerSymbol:function(config)
		{
			var symbol = new PictureMarkerSymbol(config.url, config.width, config.height);
			symbol.xoffset=config.xoffset;
			symbol.yoffset=config.yoffset;
			return symbol;
		}
    };
});