require 'bundler/inline'

gemfile do
  gem 'hanami',       '~> 1.3'
end

require 'hanami/action/session'

module Home
  class Index
    include Hanami::Action
    include Hanami::Action::Session

    def call(_params)
      flash[:errors] = 'WRONG!'
      puts "In index"
      p flash
      redirect_to '/redirected'
    end
  end

  class Redirected
    include Hanami::Action
    include Hanami::Action::Session

    def call(_params)
      puts "In redirected"
      p flash
      self.body = flash[:errors]
    end
  end
end

module FlashApp
  class Application
    attr_reader :routes
    def initialize
      @routes = Hanami::Router.new do
        get '/', to: 'home#index'
        get '/redirected', to: 'home#redirected'
      end
    end
  end
end

app = Rack::Builder.new do
  use Rack::Session::Cookie, secret: SecureRandom.hex(16)
  run FlashApp::Application.new.routes
end

Rack::Server.start app: app