sealed class WorkflowStepContent constructor (
    open val id: String,
    val htmlContent: String? = null
) {
    var converter: HtmlToMarkupConverter
    val markupContent: String?

    init {
        var injector = Guice.createInjector(DiagnosticsModule())
        converter = injector.getInstance(HtmlToMarkupConverter::class.java)
        markupContent = converter(htmlContent)
    }
}

data class QuestionStepContent(
    override val id: String,
    val title: String,
    val options: List<Option>
) : WorkflowStepContent(id)

data class SingleSelectorStepContent(
    override val id: String,
    val title: String,
    val options: List<Option>,
    val signalName: String,
    val valueKey: String
) : WorkflowStepContent(id)