facility_group_policy.rb

class Manage::FacilityGroupPolicy < ApplicationPolicy
  def index?
    user.user_permissions
      .where(permission_slug: [:manage_facility_groups])
      .present?
  end

  def show?
    user_has_any_permissions?(
      [:manage_facility_groups, nil],
      [:manage_facility_groups, record.organization],
      [:manage_facility_groups, record]
    )
  end

  def create?
    user.user_permissions
      .where(permission_slug: [:manage_facility_groups])
      .present?
  end

  def new?
    create?
  end

  def update?
    show?
  end

  def edit?
    update?
  end

  def destroy?
    destroyable? && update?
  end

  def whatsapp_graphics?
    show?
  end

  private

  def destroyable?
    record.facilities.none? && record.patients.none? && record.blood_pressures.none?
  end

  class Scope < Scope
    attr_reader :user, :scope

    def initialize(user, scope)
      super
      @user = user
      @scope = scope
    end

    def resolve
      return scope.none unless user.has_permission?(:manage_facility_groups)

      facility_group_ids = facility_group_ids_for_permission(:manage_facility_groups)
      return scope.all if facility_group_ids.empty?

      scope.where(id: facility_group_ids)
    end
  end
end