abstract class FRFragment : Fragment() {
    private var wasAdded: Boolean = false

    fun wasAdded(): Boolean {
        return wasAdded
    }

    fun setWasAdded(wasAdded: Boolean) {
        this.wasAdded = wasAdded
    }

    val fragmentName = "UNKNOWN FRAGMENT"

    abstract fun toolbarText(): String?

    @LayoutRes
    private val layoutId: Int

    init {
        layoutId = init()
    }

    @LayoutRes
    abstract fun init(): Int

    abstract fun setupView(rootView: View)

    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        val rootView = inflater!!.inflate(layoutId, null)
        ButterKnife.setDebug(true)
        ButterKnife.bind(this, rootView)
        val appbarlayoutfix = rootView.findViewById(R.id.appbarlayoutfix)
        val toolbar = rootView.findViewById(R.id.toolbar) as Toolbar?
        appbarlayoutfix?.setPadding(0, statusBarHeight, 0, 0)
        (toolbar?.findViewById(R.id.main_toolbar_title) as TextView?)?.text = toolbarText()
        toolbar?.findViewById(R.id.btn_toolbar_back)?.setOnClickListener { v -> FRFragmentManager.goBack() }

        setupView(rootView)
        return rootView
    }


    val statusBarHeight: Int
        get() {
            var result = 0
            val resourceId = context.resources.getIdentifier("status_bar_height", "dimen", "android")
            if (resourceId > 0) {
                result = context.resources.getDimensionPixelSize(resourceId)
            }
            return result
        }

}