require "application_system_test_case"

class QuantitiesTest < ApplicationSystemTestCase
  setup do
    @user = sign_in(user: users(:alice))
    @unit = @user.units.create!(symbol: 'kg')
    @quantity = @user.quantities.create!(name: 'Weight')
    visit quantities_path
  end

  test "update button turns red when default unit changes" do
    click_on 'Weight'

    button = find('button[name=button]')
    initial_color = evaluate_script("getComputedStyle(arguments[0]).backgroundColor", button)

    select 'kg', from: 'quantity[default_unit_id]'

    changed_color = evaluate_script("getComputedStyle(arguments[0]).backgroundColor", button)
    refute_equal initial_color, changed_color, "Button color should change when default unit is altered"
  end

  test "saving default unit pre-selects it in measurements form" do
    click_on 'Weight'
    select 'kg', from: 'quantity[default_unit_id]'
    click_on t('helpers.submit.update')
    assert_selector '.flash.notice'

    @quantity.reload
    assert_equal @unit.id, @quantity.default_unit_id

    visit measurements_path
    find(:link_or_button, t('measurements.index.new_measurement')).click
    assert_selector '#measurement_form'

    within '#quantity_select' do
      check 'Weight'
    end
    find('button[formaction]').click

    within 'tbody#readouts' do
      assert_selector "option[value='#{@unit.id}'][selected]"
    end
  end
end