class Issue < ApplicationRecord
  belongs_to :project
  belongs_to :tracker
  belongs_to :issue_tag, foreign_key: :priority_id,optional: true
  belongs_to :version, foreign_key: :fixed_version_id,optional: true
  belongs_to :user,optional: true, foreign_key: :author_id
  belongs_to :issue_status, foreign_key: :status_id,optional: true
  has_many :commit_issues
  has_many :attachments, as: :container, dependent: :destroy
  has_many :memos
  has_many :journals, :as => :journalized, :dependent => :destroy
  has_many :journal_details, through: :journals

  scope :issue_includes, ->{includes(:user)}

  # scope :issues_count, lambda{|tracker_id| where(tracker_id: tracker_id).size}


  def get_assign_user
    User.select(:login, :lastname,:firstname, :nickname)&.find_by_id(self.assigned_to_id)
  end

  def create_journal_detail(change_files, issue_files, issue_file_ids)
    journal_params = {
      journalized_id: self.id, journalized_type: "Issue", user_id: self.author_id
    }
    journal = Journal.new journal_params

    if journal.save
      if change_files
        old_attachment_names = self.attachments.select(:filename,:id).where(id: issue_file_ids).pluck(:filename).join(",")
        new_attachment_name = self.attachments.select(:filename,:id).where(id: issue_files).pluck(:filename).join(",")
        journal.journal_details.create(property: "attachment", prop_key: "#{issue_files.size}", old_value: old_attachment_names, value: new_attachment_name)
      end
      change_values = %w(subject description is_private assigned_to_id tracker_id status_id priority_id fixed_version_id start_date due_date estimated_hours done_ratio)
      change_values.each do |at|
        if self.send("saved_change_to_#{at}?")
          journal.journal_details.create(property: "attr", prop_key: "#{at}", old_value: self.send("#{at}_before_last_save"), value: self.send(at))
        end
      end
    end
  end

  def get_journals_size
    journals.size
  end

  def self.issues_count(tracker_id)
    includes(:trakcer).where(tracker_id: tracker_id).size
  end

end