//
// Copyright © 2022 Hardcore Engineering Inc.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//

import core, { MeasureContext, ServerStorage, Tx, systemAccountEmail, TxCollectionCUD } from '@hcengineering/core'
import { BroadcastFunc, Middleware, SessionContext, TxMiddlewareResult } from '@hcengineering/server-core'
import { BaseMiddleware } from './base'

/**
 * @public
 */
export class ModifiedMiddleware extends BaseMiddleware implements Middleware {
  private constructor (storage: ServerStorage, next?: Middleware) {
    super(storage, next)
  }

  static async create (
    ctx: MeasureContext,
    broadcast: BroadcastFunc,
    storage: ServerStorage,
    next?: Middleware
  ): Promise<ModifiedMiddleware> {
    return new ModifiedMiddleware(storage, next)
  }

  handleBroadcast (tx: Tx[], targets?: string[]): Tx[] {
    return this.provideHandleBroadcast(tx, targets)
  }

  async tx (ctx: SessionContext, tx: Tx): Promise<TxMiddlewareResult> {
    if (tx.modifiedBy !== core.account.System && ctx.userEmail !== systemAccountEmail) {
      tx.modifiedOn = Date.now()
      tx.createdOn = tx.createdOn ?? tx.modifiedOn
      if (tx._class === core.class.TxCollectionCUD) {
        ;(tx as TxCollectionCUD<any, any>).tx.modifiedOn = Date.now()
      }
    }
    return await this.provideTx(ctx, tx)
  }
}