# frozen_string_literal: true

class ChecklistEntry < ApplicationRecord
  belongs_to :checklist
  belongs_to :check

  before_validation :set_position
  before_create :update_positions
  before_update :update_positions, if: :position_changed?

  def set_position
    self.position ||= (checklist.checklist_entries.pluck(:position).max || 0) + 1
  end

  def normalize_positions
    checklist.checklist_entries.where.not(id:).find_by(position:)&.update_attribute(:position, position_was)
    # checklist.checklist_entries.order(:position).each_with_index do |entry, index|
    #   entry.update_column(:position, index + 1) if entry.position != index + 1
    # end
  end

  def update_positions
    if position_was
      checklist.checklist_entries.where("position > ?", position_was).update_all("position = position - 1")
    end
    checklist.checklist_entries.where(position: position..).update_all("position = position + 1")
  end
end