app.jl

using Genie.Renderer.Html, Stipple, StippleUI

@reactive mutable struct Model <: ReactiveModel
  process::R{Bool} = false
  output::R{String} = ""
  input::R{String} = ""
end

function handlers(model)
  on(model.process) do _
    if (model.process[])
      model.output[] = model.input[] |> reverse
      model.process[] = false
    end
  end

  model
end

function ui(model)
  page(model, class="container", [
      p([
        "Input "
        input("", @bind(:input), @on("keyup.enter", "process = true"))
      ])

      p([
        button("Action!", @click("process = true"))
      ])

      p([
        "Output: "
        span("", @text(:output))
      ])
    ]
  )
end

route("/") do
  model = Model |> init |> handlers
  html(ui(model), context = @__MODULE__)
end

#Genie.isrunning(:webserver) || up()