# frozen_string_literal: true

module Jobs
  class OldKeysReminder < ::Jobs::Scheduled
    every 1.month

    OLD_CREDENTIALS_PERIOD = 2.years

    def execute(_args)
      return if SiteSetting.send_old_credential_reminder_days.to_i == 0
      return if message_exists?
      return if old_site_settings_keys.blank? && old_api_keys.blank?

      PostCreator.create!(
        Discourse.system_user,
        title: title,
        raw: body,
        archetype: Archetype.private_message,
        target_usernames: admins.map(&:username),
        validate: false
      )
    end

    private

    def old_site_settings_keys
      @old_site_settings_keys ||= SiteSetting.secret_settings.each_with_object([]) do |secret_name, old_keys|
        site_setting = SiteSetting.find_by(name: secret_name)
        next if site_setting&.value.blank?
        next if site_setting.updated_at + OLD_CREDENTIALS_PERIOD > Time.zone.now
        old_keys << site_setting
      end.sort_by { |key| key.updated_at }
    end

    def old_api_keys
      @old_api_keys ||= ApiKey.all.order(created_at: :asc).each_with_object([]) do |api_key, old_keys|
        next if api_key.created_at + OLD_CREDENTIALS_PERIOD > Time.zone.now
        old_keys << api_key
      end
    end

    def admins
      User.real.admins
    end

    def message_exists?
      message = Topic.private_messages.with_deleted.find_by(title: title)
      message && message.created_at + SiteSetting.send_old_credential_reminder_days.to_i.days > Time.zone.now
    end

    def title
      I18n.t('old_keys_reminder.title')
    end

    def body
      I18n.t('old_keys_reminder.body', keys: keys_list)
    end

    def keys_list
      messages = old_site_settings_keys.map { |key| "#{key.name} - #{key.updated_at.to_date.to_s(:db)}" }
      old_api_keys.each_with_object(messages) { |key, array| array << "#{[key.description, key.user&.username, key.created_at.to_date.to_s(:db)].compact.join(" - ")}" }
      messages.join("\n")
    end
  end
end