//
// 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 contact, { Channel } from '@anticrm/contact'
import gmail from '@anticrm/gmail'
import { Class, Doc, DocumentQuery, FindOptions, FindResult, Hierarchy, Ref } from '@anticrm/core'

/**
 * @public
 */
export async function FindMessages (
  doc: Doc,
  hiearachy: Hierarchy,
  findAll: <T extends Doc>(
    clazz: Ref<Class<T>>,
    query: DocumentQuery<T>,
    options?: FindOptions<T>
  ) => Promise<FindResult<T>>
): Promise<Doc[]> {
  const channel = doc as Channel
  if (channel.provider !== contact.channelProvider.Email) {
    return []
  }
  const messages = await findAll(gmail.class.Message, { attachedTo: doc._id })
  const newMessages = await findAll(gmail.class.NewMessage, { attachedTo: doc._id })
  return [...messages, ...newMessages]
}

// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
export default async () => ({
  function: {
    FindMessages
  }
})