import { logger } from '../../helpers/logger.js'
import { AbstractScheduler } from './abstract-scheduler.js'
import { SCHEDULER_INTERVALS_MS } from '../../initializers/constants.js'
import { CONFIG } from '../../initializers/config.js'
import { UserExportModel } from '@server/models/user/user-export.js'

export class RemoveExpiredUserExportsScheduler extends AbstractScheduler {

  private static instance: AbstractScheduler

  protected schedulerIntervalMs = SCHEDULER_INTERVALS_MS.REMOVE_EXPIRED_USER_EXPORTS

  private constructor () {
    super()
  }

  protected async internalExecute () {
    const expired = await UserExportModel.listExpired(CONFIG.EXPORT.USERS.EXPORT_EXPIRATION)

    for (const userExport of expired) {
      logger.info('Removing expired user exports ' + userExport.filename)

      await userExport.destroy()
    }
  }

  static get Instance () {
    return this.instance || (this.instance = new this())
  }
}