package sample.binding

import android.arch.lifecycle.MutableLiveData
import android.databinding.DataBindingUtil
import android.os.Bundle
import android.support.v7.app.AppCompatActivity
import android.view.View
import com.devindi.wallpaper.R
import com.devindi.wallpaper.databinding.BindingExampleBinding

class CounterActivityBinding : AppCompatActivity() {

    val viewModel = CounterViewModel()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        val view = View(this)

        val binding = DataBindingUtil.setContentView<BindingExampleBinding>(this, R.layout.binding_example)
        binding.setLifecycleOwner(this)
        binding.counter = viewModel
    }
}

class CounterViewModel {

    private val model = CounterRepository()

    val counter = model.counter

    fun increment(view: View) {
        model.increment()
    }
}

class CounterRepository {

    val counter = MutableLiveData<Int>()

    init {
        counter.value = 0
    }

    fun increment() {
        counter.value = counter.value!! + 1
    }
}