class VaccinateForm

# File app/forms/vaccinate_form.rb, line 57
def delivery_site
  if vaccine_method.present?
    return nil if vaccine_method == "none"

    available_delivery_sites =
      Vaccine::AVAILABLE_DELIVERY_SITES.fetch(vaccine_method)

    if available_delivery_sites.length == 1
      return available_delivery_sites.first
    end
  end

  super
end

# File app/forms/vaccinate_form.rb, line 52
def delivery_site=(value)
  # This is an optional field and ensures that "" comes in as nil.
  super(value.presence)
end

# File app/forms/vaccinate_form.rb, line 96
def has_patient_specific_direction?
  patient.has_patient_specific_direction?(
    academic_year:,
    programme_type: programme.type,
    team: current_user.selected_team,
    vaccine_method:
  )
end

# File app/forms/vaccinate_form.rb, line 109
def healthcare_assistant?
  current_user.is_healthcare_assistant?
end

# File app/forms/vaccinate_form.rb, line 87
def healthcare_assistant_using_national?
  healthcare_assistant? && session.national_protocol_enabled? &&
    vaccine_method == "injection"
end

# File app/forms/vaccinate_form.rb, line 82
def healthcare_assistant_using_psd?
  healthcare_assistant? && session.psd_enabled? &&
    has_patient_specific_direction?
end

# File app/forms/vaccinate_form.rb, line 72
def protocol
  if healthcare_assistant_using_psd?
    "psd"
  elsif healthcare_assistant_using_national?
    "national"
  else
    "pgd"
  end
end

# File app/forms/vaccinate_form.rb, line 92
def requires_supplied_by_user_id?
  !current_user.show_in_suppliers && !healthcare_assistant_using_psd?
end

# File app/forms/vaccinate_form.rb, line 113
def save(draft_vaccination_record:)
  return nil if invalid?

  return false unless pre_screening.save

  draft_vaccination_record.clear_attributes

  if administered?
    draft_vaccination_record.outcome = "administered"

    if delivery_site.nil?
      draft_vaccination_record.delivery_method = delivery_method
      draft_vaccination_record.delivery_site =
        Vaccine::AVAILABLE_DELIVERY_SITES.fetch(vaccine_method).first
    elsif delivery_site != "other"
      draft_vaccination_record.delivery_method = delivery_method
      draft_vaccination_record.delivery_site = delivery_site
    end
  end

  draft_vaccination_record.batch_id = todays_batch&.id
  draft_vaccination_record.dose_sequence = dose_sequence
  draft_vaccination_record.full_dose = true
  draft_vaccination_record.identity_check_confirmed_by_other_name =
    identity_check_confirmed_by_other_name
  draft_vaccination_record.identity_check_confirmed_by_other_relationship =
    identity_check_confirmed_by_other_relationship
  draft_vaccination_record.identity_check_confirmed_by_patient =
    identity_check_confirmed_by_patient
  draft_vaccination_record.location_id =
    session.location_id unless session.generic_clinic?
  draft_vaccination_record.patient_id = patient.id
  draft_vaccination_record.performed_at = Time.current
  draft_vaccination_record.performed_by_user = current_user
  draft_vaccination_record.performed_ods_code = organisation.ods_code
  draft_vaccination_record.programme = programme
  draft_vaccination_record.protocol = protocol
  draft_vaccination_record.session_id = session.id
  draft_vaccination_record.source = "service"
  draft_vaccination_record.supplied_by_user_id =
    supplied_by_user_id || psd_created_by_user_id
  draft_vaccination_record.uuid = generate_uuid

  draft_vaccination_record.save # rubocop:disable Rails/SaveBang
end

# File app/forms/vaccinate_form.rb, line 105
def supplied_by_users
  current_user.selected_team.users.show_in_suppliers
end