/**
 * A class to hold our message data
 */
data class HelloMessageData(val message : String = "Hello Koin!")

/**
 * Hello Service - interface
 */
interface HelloService {
    fun hello(): String
}


/**
 * Hello Service Impl
 * Will use HelloMessageData data
 */
class HelloServiceImpl(private val helloMessageData: HelloMessageData) : HelloService {

    override fun hello() = "Hey, ${helloMessageData.message}"
}


/**
 * HelloApplication - Application Class
 * use HelloService
 */
class HelloApplication : KoinComponent {

    // Inject HelloService
    private val helloService by inject<HelloService>()

    // display our data
    fun sayHello() = println(helloService.hello())
}

val helloModule = module {

   single { HelloMessageData("hatul") }
   // single { HelloMessageData("hatul") }

    //single { HelloServiceImpl(get()) as HelloService }
    single{ HelloServiceImpl(HelloMessageData("hatul 2")) as HelloService}
}

fun main(vararg args: String) {

    startKoin {
        // use Koin logger
        printLogger()
        // declare modules
        modules(helloModule)
    }

    HelloApplication().sayHello()
}