MM

class MessageManager @Inject constructor(private val context: Context) {
    fun showMessage(@StringRes message: Int, duration: Duration = Duration.Short) {
        Toast.makeText(context, message, toToastDuration(duration)).show()
    }

    fun showMessage(message: CharSequence, duration: Duration = Duration.Short) {
        Toast.makeText(context, message, toToastDuration(duration)).show()
    }

    fun showMessageAtTop(@StringRes message: Int, duration: Duration = Duration.Short) {
        showMessageAtTop(context.getText(message), duration)
    }

    fun showMessageAtTop(message: CharSequence, duration: Duration = Duration.Short) {
        val toast = Toast.makeText(context, message, toToastDuration(duration))

        val view = toast.view
        val textView = view.findViewById(android.R.id.message) as TextView
        val background = view.background

        if (background is GradientDrawable) {
            background.setColor(ContextCompat.getColor(context, R.color.toast_bg_color))
        }

        val tv = TypedValue()
        var actionBarHeight = DEFAULT_ACTION_BAR_HEIGHT
        if (context.theme?.resolveAttribute(android.R.attr.actionBarSize, tv, true) == true) {
            actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, context.resources.displayMetrics)
        }
        val margin = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
                DEFAULT_TOAST_TOP_MARGIN, context.resources.displayMetrics).toInt()

        textView.setTextColor(ContextCompat.getColor(context, R.color.baseWhite))
        toast.setGravity(Gravity.TOP, 0, actionBarHeight + margin)

        toast.show()
    }

    fun showInteractiveMessage(view: View, message: CharSequence, duration: Duration = Duration.Short, actionMessage: CharSequence, action: (v: View) -> Unit) {
        val snackbar = Snackbar.make(view, message, toSnackbarDuration(duration))
        snackbar.setAction(actionMessage, action)
        snackbar.show()
    }

    fun showSnackbar(view: View, message: CharSequence, duration: Duration = Duration.Short) {
        Snackbar.make(view, message, toSnackbarDuration(duration)).show()
    }

    fun showNeedAuthDialog(activityContext: Context, navigationPresenter: CommonNavigation.Presenter) {
        val alertDialog = AlertDialog.Builder(activityContext)
                .setTitle(R.string.do_login)
                .setMessage(R.string.is_not_auth_message)
                .setPositiveButton(R.string.continue_act) { _, _ ->
                    navigationPresenter.navigateToLogin()
                }
                .setNegativeButton(R.string.cancel) {dialog, _ ->
                    dialog.cancel()
                }
                .create()
        alertDialog.show()
    }

    private fun toToastDuration(duration: Duration): Int = when(duration) {
        Duration.Long -> Toast.LENGTH_LONG
        Duration.Short -> Toast.LENGTH_SHORT
    }

    private fun toSnackbarDuration(duration: Duration): Int = when(duration) {
        Duration.Long -> Snackbar.LENGTH_LONG
        Duration.Short -> Snackbar.LENGTH_SHORT
    }

    companion object {
        private const val DEFAULT_ACTION_BAR_HEIGHT = 60
        private const val DEFAULT_TOAST_TOP_MARGIN = 16f
    }

    enum class Duration {
        Long, Short
    }