public class ArgumentsFragment : Fragment() {
  public companion object {
    public fun newInstance(): ArgumentsFragment = ArgumentsFragment().apply {
      arguments = Bundle().apply {
        putBoolean("extra_boolean", true)
      }
    }
  }
  
  // Required binding without default value
  val booleanOrThrow by bindArgument<Boolean>("extra_boolean")

  // Required binding with default value
  val booleanOrDefault by bindArgument<Boolean>("extra_boolean", false)

  // Optional binding
  val booleanOrNull by bindOptionalArgument<Boolean>("extra_boolean")
}

public class UserProfileFragment : Fragment() {
  public companion object {
    public fun newInstance(): UserProfileFragment = UserProfileFragment().apply {
      this.firstName = "Vladimir"
      this.lastName = "Mironov"
    }
  }
  
  // extra name is automatically inferred from property name ("firstName" in this case)
  var firstName by bindArgument<String>()

  // you can also provide a default value using "default" named argument
  var lastName by bindArgument<String>(default = "")
}

public class PreferencesFragment : Fragment() {
  // Boolean preference
  var boolean by bindPreference<Boolean>("boolean", false)

  // Float preference
  var float by bindPreference<Float>("float", 0.0f)

  // Integer preference
  var integer by bindPreference<Int>("integer", 1)

  // Long preference
  var long by bindPreference<Long>("long", 1L)

  // String preference
  var string by bindPreference<String>("string", "default")
}

public class PreferencesFragment : Fragment() {
  val preferences = PreferencesAware {
    activity.getSharedPreferences("CustomSharedPreferences", Context.MODE_PRIVATE)
  }
  
  var boolean by preferences.bindPreference<Boolean>("boolean", false)
  var float by preferences.bindPreference<Float>("float", 0.0f)
  var integer by preferences.bindPreference<Int>("integer", 1)
  var long by preferences.bindPreference<Long>("long", 1L)
  var string by preferences.bindPreference<String>("string", "default")
  
  // Optional preferences are supported as well
  var optionalLong by preferences.bindOptionalPreference<Long>()
  var optionalString by preferences.bindOptionalPreference<String>()
}

public inline fun <reified E : Any> Any.bindGsonPreference(default: E, key: String? = null): ReadWriteProperty<Any, E> {
  return bindPreference(default, GsonPreferenceAdapter(E::class.java), key)
}

public inline fun <reified E : Any> Any.bindGsonPreference(noinline default: () -> E, key: String? = null): ReadWriteProperty<Any, E> {
  return bindPreference(default, GsonPreferenceAdapter(E::class.java), key)
}

public class GsonPreferenceAdapter<T>(val clazz: Class<T>, val gson: Gson = GsonPreferenceAdapter.GSON) : Adapter<T, String> {
  override fun type(): Class<String> = String::class.java
  override fun fromPreference(preference: String): T = gson.fromJson(preference, clazz)
  override fun toPreference(value: T): String = gson.toJson(value)

  public companion object {
    public val GSON = Gson()
  }
}

public data class Profile(val firstName: String? = null, val lastName: String? = null)

public class ProfileManager(val context: Context) {
  public var profile by bindGsonPreference(Profile())
}

public class ResourcesFragment : Fragment() {
  // Boolean resource binding
  val boolean by bindResource<Boolean>(R.boolean.boolean_resource)

  // Color resource binding
  val color by bindResource<Int>(R.color.color_resource)

  // Drawable resource binding #1
  val bitmap by bindResource<BitmapDrawable>(R.drawable.drawable_bitmap)
  
  // Drawable resource binding #2
  val vector by bindResource<VectorDrawable>(R.drawable.drawable_vector)

  // Dimension resource binding
  val dimension by bindResource<Int>(R.dimen.dimen_resource)

  // String resource binding
  val string by bindResource<String>(R.string.string_resource)
}