reusablefunction.kt

fun main(args:Array<String>){
    var view1 = ViewPage1()
    view1.main()

    var view2 = ViewPage2()
    view2.main()

    var view3 = ViewPage3()
    view3.main()
}

class ViewPage1{
    fun main(){
        var presenter1 = PresenterPage1()
        println("view1:"+presenter1.ambilMobil())
    }
}


class ViewPage2{
    fun main(){
        var presenter2 = PresenterPage2()
        println("view2:"+presenter2.tampilkanServices())
    }

}

class ViewPage3{
    fun main(){
        var presenter3 = PresenterPage3()
        println("view3:"+presenter3.ambilMobil())
        println("view3:"+presenter3.tampilkanServices())
        println("view3:"+presenter3.voucherTersedia())
    }

}


// presenters
class PresenterPage1{
    private var carManager:CarManager

    init {
      carManager = CarManager()
    }
    fun ambilMobil():List<String>{
        return carManager.getCars().sorted()
    }
}
class PresenterPage2{
    private var servicesManager:ServicesManager

    init {
        servicesManager = ServicesManager()
    }

    fun tampilkanServices():List<String> {
        return servicesManager.getServices().sorted()
    }
}
class PresenterPage3{
    private var carManager:CarManager
    private var servicesManager:ServicesManager
    private var voucherManager: VoucherManager
    
    init {
        carManager = CarManager()
        servicesManager = ServicesManager()
        voucherManager = VoucherManager()
    }
    fun ambilMobil():List<String>{
        return carManager.getCars().sorted()
    }

    fun tampilkanServices():List<String> {
        return servicesManager.getServices().sorted()
    }

    fun voucherTersedia():List<String>{
        return voucherManager.getVouchers().sorted()
    }
}

//reusable func
class CarManager{
    fun getCars(): List<String> {
        var a = listOf<String>("anaza","picanto","camry")
        return a
    }
}
class ServicesManager(){
    fun getServices(): List<String>{
        return listOf("cucikering","gantioli","tuneup")
    }
}

class VoucherManager(){
    fun getVouchers(): List<String>{
        return listOf("hepiyadara","merdeka","hepiselalu","hepiteam")
    }
}