module.exports = (function () {

	var createName = function (fieldKey,fieldName) {
		if (fieldKey === undefined) {
			throw new Error('no fieldKey');
		}
		if (fieldName && fieldName.length !== 0) {
			return fieldName;
		}
		var result = '';
		var names = fieldKey.split('_');
		for (var i in names) {
			var name = names[i];
			if (name.length > 1) {
				name = name.substring(0,1).toUpperCase() + name.substring(1);
			}
			result = result + ' ' + name;
		}
		return result.substring(1); // remove first space
	};

	var filterName = function(ctx,value) {
		return ctx.filterValue(value,['_','-','.',','],' ', function (part) {
			return part.substring(0,1).toUpperCase()+part.substring(1).toLowerCase();
		});
	};
	
	return function AutoTNamePlugin() {
		
		this.configPlugin = function (ctx) {
			ctx.key='autoTName';
			ctx.description='Auto fills and checks the tname fields.';
		};
		
		this.fillTField = function(ctx) {
			if (ctx.tfield.tname === null) {
				ctx.tfield.tname = createName(ctx.tfield.tid);
			} else {
				//ctx.tfield.tname = filterName(ctx,ctx.tfield.tname);
			}
		};
		
		this.fillTEntity = function(ctx) {
			if (ctx.tentity.tname === null) {
				ctx.tentity.tname = ctx.tentity.tid;// 
			}
		};
	};
})();