/**
 * Help to process errors.
 *
 * return error object if is validation error
 */
export function errorHandler(err, tracker = []){

	let responseMsg = "Something Is Not Right. Please Try Again Later."
	
	this.$toast.warning(this.$auth.user().role_id)
	if(err == null){
		this.$toast.warning(responseMsg)
	}else{
		let { status, data } = err

		// if is validation error
		if(status == 422){
			let errors =  data.errors || data.message
			let intersect_errors = {}
			let not_intersect_errors = {}

			Object.keys(errors).forEach(function(key) {
				if (tracker.includes(key)) {
					intersect_errors[key] = errors[key];
				}else{
					not_intersect_errors[key] = errors[key];
				}
			});
			return {
				"a" : intersect_errors,
				"b" : not_intersect_errors
			}
		}

		// else notify user
		this.$toast.warning(status == 400 ? data.message : responseMsg)
	}

	return null;
}