# == Schema Information
#
# Table name: experts
#
#  id         :bigint           not null, primary key
#  created_at :datetime         not null
#  updated_at :datetime         not null
#
class Expert < ApplicationRecord
  has_one :user
  has_many :experts_procedures
  has_many :avis, through: :experts_procedures
  has_many :dossiers, through: :avis
  has_many :commentaires

  default_scope { eager_load(:user) }

  def email
    user.email
  end

  def self.by_email(email)
    Expert.eager_load(:user).find_by(users: { email: email })
  end

  def avis_summary
    if @avis_summary.present?
      @avis_summary
    else
      query = <<~EOF
        COUNT(*) FILTER (where answer IS NULL) AS unanswered,
        COUNT(*) AS total
      EOF
      result = avis.select(query)[0]
      @avis_summary = { unanswered: result.unanswered, total: result.total }
    end
  end

  def merge(old_expert)
    old_expert.experts_procedures.update_all(expert_id: id)
    old_expert.commentaires.update_all(expert_id: id)
  end
end