Extension.kt

fun Resources.color(colorRes: Int) =
        if (Build.VERSION.SDK_INT >= 23) {
            this.getColor(colorRes, null)
        } else {
            this.getColor(colorRes)
        }

fun ViewGroup.inflate(@LayoutRes layoutRes: Int, attachToRoot: Boolean = false): View {
    return LayoutInflater.from(context).inflate(layoutRes, this, attachToRoot)
}

fun View.visible(visible: Boolean) {
    this.visibility = if (visible) View.VISIBLE else View.GONE
}

fun ImageView.tint(@ColorRes colorRes: Int) {
    this.setColorFilter(ContextCompat.getColor(context, colorRes))
}

fun Disposable.addTo(compositeDisposable: CompositeDisposable) {
    compositeDisposable.add(this)
}

fun Throwable.userMessage(resourceManager: ResourceManager) = when (this) {
    is HttpException -> when (this.code()) {
        304 -> resourceManager.getString(R.string.not_modified_error)
        400 -> resourceManager.getString(R.string.bad_request_error)
        401 -> resourceManager.getString(R.string.unauthorized_error)
        403 -> resourceManager.getString(R.string.forbidden_error)
        404 -> resourceManager.getString(R.string.not_found_error)
        405 -> resourceManager.getString(R.string.method_not_allowed_error)
        409 -> resourceManager.getString(R.string.conflict_error)
        422 -> resourceManager.getString(R.string.unprocessable_error)
        500 -> resourceManager.getString(R.string.server_error_error)
        else -> resourceManager.getString(R.string.unknown_error)
    }
    is IOException -> resourceManager.getString(R.string.network_error)
    else -> resourceManager.getString(R.string.unknown_error)
}