require "application_system_test_case"

class ChartsTest < ApplicationSystemTestCase
  setup do
    @user = sign_in(user: users(:alice))
    @quantity = @user.quantities.create!(name: 'Weight')
    @unit = @user.units.create!(symbol: 'kg')
    @user.readouts.create!(quantity: @quantity, unit: @unit, value: 82.5, taken_at: 1.day.ago)
    @user.readouts.create!(quantity: @quantity, unit: @unit, value: 83.1, taken_at: Time.now)
    visit charts_path
  end

  test "charts page is reachable from navigation" do
    visit root_path
    click_on t('charts.navigation')
    assert_current_path charts_path
  end

  test "renders Plotly chart panel" do
    assert_selector '#measurements-charts .chart-panel', wait: 5
  end

  test "chart legend shows quantity name with unit" do
    assert_text 'Weight (kg)', wait: 5
  end
end