//////////////////////////////////////////////////////////////////////
// CConfig
function CConfig(px){
	const usemap={};

	function isDisabled(obj){
		if(!obj){return true;}
		return(("disabled" in obj)&&(obj.disabled));
	};

	function set(extname,cfg){
		usemap[extname]=cfg?cfg:{};
	};

	function get(extname){
		return usemap[extname];
	};

	function exists(extname){
		return (extname in usemap);
	};

	function getUsemap(){
		return usemap;
	};

	function getExtensionList(cfg,codebase){
		// overwrite cfg of each component with global cfg
		for(const extname in cfg){
			if(extname in usemap){
				usemap[extname]=cfg[extname];
			}
		}

		// list up the extensions used in this instance
		const ls=[]
		for(const extname in usemap){
			const rec=codebase[extname];
			if(!rec){
				console.log("No code found for "+extname);
			}else{
				ls.push({extname,runidx:rec.runidx});
			}
		}

		// sort the extensions by runidx
		return ls.sort((a,b)=>a.runidx-b.runidx);
	};

	return{
		set,
		get,
		exists,
		getUsemap,
		getExtensionList,
		isDisabled,
	};
};