carFactory

function myFunc(inputObj) {
    const engines = {
        90: { power: 90, volume: 1800 },
        120: { power: 120, volume: 2400 },
        200: { power: 200, volume: 3500 },
    };

    const carriages = {
        hatchback: { type: "hatchback", color: "" },
        coupe: { type: "coupe", color: "" },
    };

    const carObj = {
        model: "",
        engine: null,
        carriage: null,
        wheels: [],
    };
    carObj.model = inputObj.model;
    const searched_power = Object.keys(engines).filter(
        (e) => e >= inputObj.power
    )[0];
    carObj.engine = engines[searched_power];
    carObj.carriage = carriages[inputObj.carriage];
    carObj.carriage.color = inputObj.color;

    let wheel = inputObj.wheelsize;
    if (wheel % 2 === 0) {
        wheel = Math.floor(wheel) - 1;
    }
    carObj.wheels = Array(4).fill(wheel);

    return carObj;
}

console.log(
    myFunc({
        model: "Opel Vectra",
        power: 110,
        color: "grey",
        carriage: "coupe",
        wheelsize: 17,
    })
);