import { Injectable } from '@angular/core';
import { MessageRemoteDataSourceService } from '../data-source/message/message-remote-data-source.service';
import { MessageLiveDataSourceService } from '../data-source/message/message-live-data-source.service';
import { MessageLocalDataSourceService, TableMessage } from '../data-source/message/message-local-data-source.service';
import { SessionStore } from 'src/app/store/session.service';
import { SignalRService } from '../../infra/socket/signal-r.service';
import { v4 as uuidv4 } from 'uuid'
import { err, ok } from 'neverthrow';
import { MessageDeleteInputDTO } from '../../domain/use-case/message-delete-live-use-case.service';
import { MessageUpdateInput } from '../../domain/use-case/message-update-use-case.service';
import { messageListDetermineChanges } from '../async/list/rooms/messageListChangedetector';
import { MessageEntity } from '../../domain/entity/message';
import { InstanceId } from '../../domain/chat-service.service';
import { MessageMapper } from '../../domain/mapper/messageMapper';
import { MessageOutPutDataDTO } from '../dto/message/messageOutputDTO';


@Injectable({
  providedIn: 'root'
})
export class MessageRepositoryService {

  constructor(
    private messageRemoteDataSourceService: MessageRemoteDataSourceService,
    private messageLiveDataSourceService: MessageLiveDataSourceService,
    private messageLiveSignalRDataSourceService: SignalRService,
    private messageLocalDataSourceService: MessageLocalDataSourceService
  ) {}


  async createMessageLocally(entity: MessageEntity) {
    const requestId = InstanceId +'@'+ uuidv4();
    const roomId = entity.roomId

    return await this.messageLocalDataSourceService.sendMessage(entity)

  }

  async sendMessage(entity: MessageEntity) {

    const requestId = InstanceId +'@'+ uuidv4();
    const roomId = entity.roomId

    const localActionResult = await this.messageLocalDataSourceService.sendMessage(entity)

    if(localActionResult.isOk()) {
      const DTO = MessageMapper.fromDomain(entity, requestId)
      const sendMessageResult = await this.messageLiveSignalRDataSourceService.sendMessage<MessageOutPutDataDTO>(DTO)

      if(sendMessageResult.isOk()) {

        if(sendMessageResult.value.sender == undefined || sendMessageResult.value.sender == null) {

          delete sendMessageResult.value.sender
        }

        let clone: TableMessage = {
          ...sendMessageResult.value,
          id: sendMessageResult.value.id,
          $id : localActionResult.value
        }

        return this.messageLocalDataSourceService.update({...clone, sending: false, roomId: entity.roomId})
      } else {
        await this.messageLocalDataSourceService.update({sending: false, $id: localActionResult.value})
        return err('no connection')
      }

    } else {
      // return this.messageLocalDataSourceService.update({sending: false})
    }
  }


  sendMessageDelete(data: MessageDeleteInputDTO) {

    data['requestId'] = InstanceId +'@'+ uuidv4();

    return this.messageLiveSignalRDataSourceService.sendMessageDelete(data)
  }

  async sendReadAt({roomId}) {
    const result = await this.messageLocalDataSourceService.getLastMessageByRoomId(roomId)
    if(result.isOk()) {
      if(result.value) {

        return await this.messageLiveSignalRDataSourceService.sendReadAt({roomId, memberId: SessionStore.user.UserId, chatMessageId: result.value.id})
      }
      return ok(true)
    }
    return err(false)
  }

  reactToMessage(data) {
    this.messageLiveSignalRDataSourceService.sendData({
      method: 'ReactMessage',
      data
    })
  }

  updateMessage(input: MessageUpdateInput) {
    this.messageLiveSignalRDataSourceService.sendData({
      method: 'EditMessage',
      data: input,
    })
  }

  async listAllMessagesByRoomId(id: string) {
    const result = await this.messageRemoteDataSourceService.getMessagesFromRoom(id)
    const localResult = await this.messageLocalDataSourceService.getItems(id)

    if(result.isOk()) {

      const { addedItems, changedItems } = messageListDetermineChanges(result.value.data, localResult)

      for(const message of changedItems) {
        let clone: TableMessage = message
        clone.roomId = id
        await this.messageLocalDataSourceService.findOrUpdate(clone)
      }

      for(const message of addedItems) {
        let clone: TableMessage = message
        clone.roomId = id
        await this.messageLocalDataSourceService.createMessage(clone)
      }
    }
    return result
  }

  getItemsLive (roomId: string) {
    return this.messageLocalDataSourceService.getItemsLive(roomId)
  }

  subscribeToNewMessages(roomId: any) {
    return this.messageLocalDataSourceService.subscribeToNewMessage(roomId)
  }

  sendTyping(roomId) {
    return this.messageLiveSignalRDataSourceService.sendTyping({
      roomId,
      UserName:SessionStore.user.FullName,
      userId: SessionStore.user.UserId
    })
  }

}