All That Luggage

function allThatLuggage(arr) {
    let sorting = arr.pop();
    let luggages = {};
    for (let line of arr) {
        let [name, luggage, isFood, isDrink, isFragile, weight, transport] = line.split(/\.*\*\.*/g);

        if (!luggages.hasOwnProperty(name)) {
            luggages[name] = {};
        }

        if (!luggages[name].hasOwnProperty(luggage)) {
            luggages[name][luggage] = {
                kg: Number(weight),
                fragile: isFragile,
                type: isFood == "true" ? "food" : isDrink == "true" ? "drink" : "other",
                transferredWith: transport
            };
        }
    }

    let result = {};
    switch (sorting){
        case "luggage name":
            for (let key of Object.keys(luggages)) {
                let sorted = Object.keys(luggages[key]).sort((a,b) => a.localeCompare(b));
                for (let innerKey of sorted) {
                    if(!result.hasOwnProperty(key)){
                        result[key] = {};
                    }

                    if(!result[key].hasOwnProperty(innerKey)){
                        result[key][innerKey] = luggages[key][innerKey];
                    }
                }
            }
            return JSON.stringify(result);
        case "weight":
            for (let key of Object.keys(luggages)) {
                let sorted = Object.keys(luggages[key]).sort((a,b) => orderByWeight(a,b,key));
                for (let innerKey of sorted) {
                   if(!result.hasOwnProperty(key)){
                       result[key] = {};
                   }

                   if(!result[key].hasOwnProperty(innerKey)){
                       result[key][innerKey] = luggages[key][innerKey];
                   }
                }
            }
            return JSON.stringify(result);
    }

    return JSON.stringify(luggages);

    function orderByWeight(a,b,key) {
        let weightA = luggages[key][a].kg;
        let weightB = luggages[key][b].kg;

        return weightA - weightB;
    }
}