module Feed::Comment
  extend ActiveSupport::Concern

  included do
    after_commit :new_comment_notifications, on: :create
    # dont remove outdated issues link
    after_update -> { Comment.create_link_on_issues_from_item(self) }
  end

  private

  def new_comment_notifications
    return if automatic?

    if issue_comment?
      commentable.subscribes.each do |subscribe|
        if user_id != subscribe.user_id && can_notify_on_new_comment?(subscribe)
          UserMailer.new_comment_notification(self, subscribe.user_id).deliver
          ActivityFeed.create(
            {
              user_id:  subscribe.user_id,
              kind:     'new_comment_notification',
              data:     {
                user_name:       user.name,
                user_email:      user.email,
                user_id:         user_id,
                comment_body:    body.truncate(100, omission: '…'),
                issue_title:     commentable.title,
                issue_serial_id: commentable.serial_id,
                project_id:      commentable.project.id,
                comment_id:      id,
                project_name:    project.name,
                project_owner:   project.owner.uname
              }
            }, without_protection: true
          )
        end
      end
    elsif commit_comment?
      Subscribe.comment_subscribes(self).where(status: true).each do |subscribe|
        next if !subscribe.user_id || own_comment?(subscribe.user)
        if subscribe.user.notifier.can_notify &&
            ( (subscribe.project.owner?(subscribe.user) && subscribe.user.notifier.new_comment_commit_repo_owner) ||
              (subscribe.user.commentor?(self.commentable) && subscribe.user.notifier.new_comment_commit_commentor) ||
              (subscribe.user.committer?(self.commentable) && subscribe.user.notifier.new_comment_commit_owner) )
          UserMailer.new_comment_notification(self, subscribe.user_id).deliver
        end
        ActivityFeed.create(
          {
            user_id:  subscribe.user_id,
            kind:     'new_comment_commit_notification',
            data:     {
              user_name:      user.name,
              user_email:     user.email,
              user_id:        user_id,
              comment_body:   body.truncate(100, omission: '…'),
              commit_message: commentable.message.truncate(70, omission: '…'),
              commit_id:      commentable.id,
              project_id:     project.id,
              comment_id:     id,
              project_name:   project.name,
              project_owner:  project.owner.uname
            }
          }, without_protection: true
        )
      end
    end
    Comment.create_link_on_issues_from_item(self)
  end

  def can_notify_on_new_comment?(subscribe)
    notifier = SettingsNotifier.find_by user_id: subscribe.user_id
    notifier && notifier.new_comment && notifier.can_notify
  end
end