AbstracFactory.swift

protocol Floorplan {
    var seats:Int { get }
    var enginePosition:EngineOption { get }
}

enum EngineOption : String {
    case FRONT = "Front"
    case MID   = "Mid"
}

class ShortFloorplan : Floorplan {
    var seats = 2
    var enginePosition = EngineOption.MID
}

class StandardFloorplan : Floorplan {
    var seats = 4
    var enginePosition = EngineOption.FRONT
}

class LongFloorplan : Floorplan {
    var seats = 8
    var enginePosition = EngineOption.FRONT
}

protocol Suspension {
    var suspensionType:SuspensionOption { get }
}

enum SuspensionOption : String {
    case STANDARD = "Standard"
    case SPORTS   = "Firm"
    case SOFT     = "Soft"
}

class RoadSuspension : Suspension {
    var suspensionType = SuspensionOption.STANDARD
}

class OffRoadSuspension : Suspension {
    var suspensionType = SuspensionOption.SOFT
}

class RaceSuspension : Suspension {
    var suspensionType = SuspensionOption.SPORTS
}

protocol Drivetrain {
    var driveType:DriveOption { get }
}

enum DriveOption : String {
    case FRONT = "Front"
    case REAR  = "Rear"
    case ALL   = "4WD"
}

class FrontWheelDrive : Drivetrain {
    var driveType = DriveOption.FRONT
}

class RearWheelDrive : Drivetrain {
    var driveType = DriveOption.REAR
}

class AllWheelDrive : Drivetrain {
    var driveType = DriveOption.ALL
}

enum Cars : String {
    case COMPACT = "VW Golf"
    case SPORTS  = "Porsche Boxter"
    case SUV     = "Cadillac Escalade"
}

struct Car {
    var carType:Cars
    var floor:Floorplan
    var suspension:Suspension
    var drive:Drivetrain
    
    func printDetails() {
        print("Car type: \(carType.rawValue)")
        print("Car type: \(floor.seats)")
        print("Car type: \(floor.enginePosition.rawValue)")
        print("Car type: \(suspension.suspensionType.rawValue)")
        print("Car type: \(drive.driveType.rawValue)")
    }
}

var car = Car(carType: Cars.SPORTS, floor: ShortFloorplan(), suspension: RaceSuspension(), drive: RearWheelDrive())
car.printDetails()