require "test_helper"

class MailOpensControllerTest < ActionDispatch::IntegrationTest
  setup do
    opportunities(:deal).update!(send_status: "to_send")
    @mailing = create_mailing(audience: "to_send")
    @mailing.rebuild_recipients!
    @recipient = @mailing.mailing_recipients.first
    @recipient.update!(status: "sent", sent_at: Time.current, rendered_subject: "Ciao ASD Test Calcio")
  end

  test "records the first open without login and returns a gif" do
    assert_difference -> { Activity.where(activity_type: "email_opened").count }, 1 do
      get mail_open_path(@recipient.tracking_token)
    end

    assert_response :success
    assert_equal "image/gif", response.media_type
    @recipient.reload
    assert @recipient.opened?
    assert_equal 1, @recipient.open_count
    assert_equal @recipient.opened_at, @recipient.last_opened_at
  end

  test "counts later loads without duplicating the timeline activity" do
    get mail_open_path(@recipient.tracking_token)
    assert_no_difference -> { Activity.where(activity_type: "email_opened").count } do
      get mail_open_path(@recipient.tracking_token)
    end

    @recipient.reload
    assert_equal 2, @recipient.open_count
    assert @recipient.last_opened_at >= @recipient.opened_at
  end

  test "unknown token still returns a gif" do
    get mail_open_path("missing-token-value-here")
    assert_response :success
    assert_equal "image/gif", response.media_type
  end

  test "does not mark pending emails as opened" do
    @recipient.update!(status: "pending", sent_at: nil)
    get mail_open_path(@recipient.tracking_token)

    assert_response :success
    @recipient.reload
    assert_not @recipient.opened?
    assert_equal 0, @recipient.open_count
  end
end