package keijumt.devandroid.fragment

import android.arch.lifecycle.Observer
import android.arch.lifecycle.ViewModelProviders
import android.content.Intent
import android.databinding.DataBindingUtil
import android.os.Bundle
import android.support.v4.app.FragmentActivity
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import keijumt.devandroid.R
import keijumt.devandroid.activity.ApiActivity
import keijumt.devandroid.activity.AsyncActivity
import keijumt.devandroid.databinding.FragmentMainBinding
import keijumt.devandroid.viewmodel.MainViewModel

class MainFragment : BaseFragment() {

    lateinit var binding: FragmentMainBinding
    lateinit var mainViewModel: MainViewModel


    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
        val nonNullActivity: FragmentActivity = activity ?: return null
        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_main, null, false)
        mainViewModel = ViewModelProviders.of(nonNullActivity, viewModelFactory).get(MainViewModel::class.java)
        binding.mainViewModel = mainViewModel
        subscribe()
        return binding.root
    }

    fun subscribe() {
        mainViewModel.event.observe(this, Observer {
            when (it) {
                MainViewModel.Event.Api -> startActivity(Intent(activity, ApiActivity::class.java))
                MainViewModel.Event.Async -> startActivity(Intent(activity, AsyncActivity::class.java))
            }
        })
    }
}