# Homepage (Root path)
get '/' do
  @users = User.all # grab all the users from users table, use instance variabe (@) so we can use the data in the erb template
  erb :index
end

get '/blog' do
  erb :blog
end

# show the "register" template which has the form
get '/register' do
  erb :register
end

# we hit this action when the form is submitted (remember the form used 'POST' method and '/register' action
# so we would hit this particular route with the form data.  The form data can be accessed through 'params' hash.
post '/register' do
  first_name = params[:first_name]
  email = params[:email]
  password = params[:password]
  colour = params[:colour]
  age = params[:age]

  new_user = User.new(
    first_name: first_name,
    email: email,
    password: password,
    colour: colour,
    age: age
  )

  if new_user.save
    # if a new user row was created in the db then redirect back to home page.
    redirect '/'
  else
    # if we couldn't create a new row (user) in the db then refresh the same page
    # so user can re-enter the data and submit
    erb :register # show the register view with form in it
  end
end