obdev/app/models/participant.rb

class Participant < ApplicationRecord
  after_create :create_onboarding_items_for_forms
  
  # Associations
  belongs_to :employer, optional: false
  has_many :employments
  has_many :workers, through: :employments
  has_many :service_contracts
  has_many :vendors, through: :service_contracts
  has_many :employer_records
  has_many :employers, through: :employer_records
  has_and_belongs_to_many :programs
  has_many :bank_accounts, as: :owner
  has_many :onboarding_items, as: :owner
  accepts_nested_attributes_for :onboarding_items

  # Validations
  validates :first_name, :last_name, :ssn, presence: true
  validates :ssn, uniqueness: { message: "SSN is already taken by another participant" }, unless: :ssn_already_taken_by_employer?
  validates :employer_id, presence: true

  def full_name
    "#{first_name} #{last_name}"
  end

  private

  def ssn_already_taken_by_employer?
    # Check if the SSN already exists in the Employer model, excluding the current participant's employer
    Employer.where.not(id: employer_id).exists?(ssn: ssn)
  end

  def create_onboarding_items_for_forms
    create_participant_onboarding_items
    create_employer_onboarding_items_if_applicable
  end

  def create_participant_onboarding_items
    participant_role = FormRole.find_by(name: 'Participant')
    forms = Form.joins(:form_roles).where(form_roles: { id: participant_role.id })
    forms.each do |form|
      onboarding_items.find_or_create_by(form: form)
    end
  end

  def create_employer_onboarding_items_if_applicable
    # Assuming there is a method or indicator to check if the participant is also an employer
    return unless self.is_also_employer?

    employer_role = FormRole.find_by(name: 'Employer')
    forms = Form.joins(:form_roles).where(form_roles: { id: employer_role.id })
    forms.each do |form|
      # Here you need to decide how you want to associate the forms with the employer record
      # If the employer record is separate from the participant, you may need something like:
      self.employer.onboarding_items.find_or_create_by(form: form) if self.employer.present?
      # If the participant itself acts as an employer, then you might directly create onboarding items as done for participant forms
    end
  end

  # A method to determine if the participant should also have employer forms
  def is_also_employer?
    # Implement logic to determine if the participant is also an employer
    # This might involve checking if the participant has an associated employer record
    # or any other logic specific to your application
    self.employer.present? # Example logic, adjust as needed
  end
end