require_relative 'contact'

class Person
  attr_reader :id, :git, :contact

  def initialize(id:, git:, contact: Contact.new)
    validate_id(id)
    validate_contact(contact)

    @id = id
    @git = git
    @contact = contact
  end

  def git_present?
    !@git.nil? && !@git.empty?
  end

  def contact_present?
    @contact.present?
  end

  def contact_info
    @contact.get_single_contact
  end

  def self.valid_git?(git)
    /\Ahttps:\/\/github\.com\/[A-Za-z0-9_\-]+\z/.match?(git)
  end

  def self.valid_id?(id)
    id.is_a?(String) && !id.strip.empty?
  end

  def git=(git)
    validate_git(git)
    @git = git
  end

  private

  def validate_id(id)
    raise ArgumentError, 'ID is required and must be a non-empty string' unless self.class.valid_id?(id)
  end

  def validate_git(git)
    raise ArgumentError, 'Git link is required' if git.nil? || git.strip.empty?
    raise ArgumentError, 'Invalid Git link format' unless self.class.valid_git?(git)
  end

  def validate_contact(contact)
    raise ArgumentError, 'Contact must be a valid Contact object' unless contact.is_a?(Contact)
    raise ArgumentError, 'Contact must have at least one valid field' unless contact.present?
  end
end