require "test_helper"

class EventsControllerTest < ActionDispatch::IntegrationTest
  def setup
    @user = User.create!(
      email: "test@example.com",
      password: "password123",
      password_confirmation: "password123"
    )

    @event = Event.create!(
      name: "Test Event",
      slug: "test-event",
      description: "A valid description for the test event that is long enough",
      latitude: 48.8566,
      longitude: 2.3522,
      venue_name: "Test Venue",
      venue_address: "123 Test Street",
      user: @user,
      start_time: 1.week.from_now,
      end_time: 1.week.from_now + 3.hours,
      state: :published
    )

    @unpublished_event = Event.create!(
      name: "Unpublished Event",
      slug: "unpublished-event",
      description: "A valid description for the unpublished event that is long enough",
      latitude: 48.8566,
      longitude: 2.3522,
      venue_name: "Test Venue",
      venue_address: "123 Test Street",
      user: @user,
      start_time: 2.weeks.from_now,
      end_time: 2.weeks.from_now + 3.hours,
      state: :draft
    )

    @ticket_type = TicketType.create!(
      name: "General Admission",
      description: "General admission tickets with full access to the event",
      price_cents: 2500,
      quantity: 100,
      sale_start_at: Time.current,
      sale_end_at: @event.start_time - 1.hour,
      requires_id: false,
      event: @event
    )
  end

  # === Index Action Tests ===

  test "should get index" do
    get events_url
    assert_response :success
  end

  test "index should assign upcoming published events" do
    get events_url
    assert_response :success

    # Check that @events is assigned
    events = assigns(:events)
    assert_not_nil events

    # Should include published upcoming events
    assert_includes events.to_a, @event

    # Should not include unpublished events
    assert_not_includes events.to_a, @unpublished_event
  end

  test "index should handle pagination" do
    # Create additional events to test pagination
    15.times do |i|
      Event.create!(
        name: "Event #{i}",
        slug: "event-#{i}",
        description: "A valid description for event #{i} that is long enough",
        latitude: 48.8566,
        longitude: 2.3522,
        venue_name: "Test Venue",
        venue_address: "123 Test Street",
        user: @user,
        start_time: (i + 1).days.from_now,
        end_time: (i + 1).days.from_now + 3.hours,
        state: :published
      )
    end

    get events_url
    assert_response :success

    events = assigns(:events)
    assert_not_nil events

    # Should be paginated (12 per page as per controller)
    assert_equal 12, events.size
  end

  test "index should handle pagination with page parameter" do
    # Create additional events to test pagination
    15.times do |i|
      Event.create!(
        name: "Event #{i}",
        slug: "event-#{i}",
        description: "A valid description for event #{i} that is long enough",
        latitude: 48.8566,
        longitude: 2.3522,
        venue_name: "Test Venue",
        venue_address: "123 Test Street",
        user: @user,
        start_time: (i + 1).days.from_now,
        end_time: (i + 1).days.from_now + 3.hours,
        state: :published
      )
    end

    get events_url, params: { page: 2 }
    assert_response :success

    events = assigns(:events)
    assert_not_nil events

    # Should show remaining events on page 2
    assert events.size <= 12
  end

  test "index should include user association" do
    get events_url
    assert_response :success

    events = assigns(:events)
    assert_not_nil events

    # Just verify the association exists
    events.each do |event|
      assert_not_nil event.user
    end if events.present?
  end

  # === Show Action Tests ===

  test "should show event" do
    get event_url(@event.slug, @event.id)
    assert_response :success
  end

  test "should assign event with ticket_types" do
    get event_url(@event.slug, @event.id)
    assert_response :success

    event = assigns(:event)
    assert_not_nil event
    assert_equal @event.id, event.id

    # Test that ticket_types association is preloaded
    assert_includes event.ticket_types.to_a, @ticket_type
  end

  test "should show unpublished event" do
    # The controller doesn't seem to restrict access to unpublished events
    # This might be intentional for preview purposes
    get event_url(@unpublished_event.slug, @unpublished_event.id)
    assert_response :success
  end

  test "should handle mismatched slug and id" do
    # Even with wrong slug, should still find event by ID
    get event_url("wrong-slug", @event.id)
    assert_response :success

    event = assigns(:event)
    assert_equal @event.id, event.id
  end

  # === Authentication Tests ===

  test "index should not require authentication" do
    get events_url
    assert_response :success
    # Should not redirect to login (success means it didn't redirect)
    assert_not_equal 302, @response.status
  end

  test "show should not require authentication" do
    get event_url(@event.slug, @event.id)
    assert_response :success
    # Should not redirect to login (success means it didn't redirect)
    assert_not_equal 302, @response.status
  end

  # === Response Format Tests ===

  test "index should render correct template" do
    get events_url
    assert_response :success
    assert_template :index
  end

  test "show should render correct template" do
    get event_url(@event.slug, @event.id)
    assert_response :success
    assert_template :show
  end

  # === Edge Case Tests ===

  test "index should handle empty results" do
    # Hide all events by making them draft
    Event.update_all(state: Event.states[:draft])

    get events_url
    assert_response :success

    events = assigns(:events)
    assert_not_nil events
    assert_empty events
  end

  test "index should handle invalid page parameter" do
    get events_url, params: { page: "invalid" }
    assert_response :success
    # Should default to page 1

    events = assigns(:events)
    assert_not_nil events
  end

  test "index should handle negative page parameter" do
    get events_url, params: { page: -1 }
    assert_response :success
    # Should default to page 1

    events = assigns(:events)
    assert_not_nil events
  end

  test "index should handle very large page parameter" do
    get events_url, params: { page: 999999 }
    assert_response :success
    # Should handle gracefully (probably empty results)

    events = assigns(:events)
    assert_not_nil events
  end
end