module.exports = (function () {
	
	var autoFieldEnable = function(tfield,type) {
		if (type === undefined) {
			throw new Error('no type');
		}
		if (tfield[type] === undefined) {
			tfield[type] = {}; // todo rm this
		}
		if (tfield[type].tenable !== null) {
			return;
		}
		var fieldKey = tfield.tid;
		var result = true;
		if ('tlist' === type) {
			var name = fieldKey.toLowerCase();
			if (fieldKey.indexOf('description') >= 0) {
				result = false;
			} else if (fieldKey.indexOf('comment') >= 0) {
				result = false;
			}
		}
		tfield[type].tenable = result;
	}
	
	return function AutoTEnablePlugin() {
		
		this.configPlugin = function (ctx) {
			ctx.key='autoTEnable';
			ctx.description='Auto enables to true if undefined.';
		};
		
		this.fillTEntity = function(ctx) {
			if (ctx.tentity.tenable === null || ctx.tentity.tenable === undefined) {
				ctx.tentity.tenable = true;
			}
			autoFieldEnable(ctx.tentity,'tlist');
			autoFieldEnable(ctx.tentity,'tread');
			autoFieldEnable(ctx.tentity,'tedit');
			autoFieldEnable(ctx.tentity,'tcreate');
			autoFieldEnable(ctx.tentity,'tdelete');
			autoFieldEnable(ctx.tentity,'tcount');
			autoFieldEnable(ctx.tentity,'tverify');
		}
		
		this.fillTField = function(ctx) {
			autoFieldEnable(ctx.tfield,'tlist');
			autoFieldEnable(ctx.tfield,'tread');
			autoFieldEnable(ctx.tfield,'tedit');
			autoFieldEnable(ctx.tfield,'tcreate');
		}
	};
})();