import { TestBed } from '@angular/core/testing'
import {
  ConsumerStatusService,
  FILE_STATUS_MESSAGES,
  FileStatusPhase,
} from './consumer-status.service'
import {
  HttpClientTestingModule,
  HttpTestingController,
} from '@angular/common/http/testing'
import { environment } from 'src/environments/environment'
import { DocumentService } from './rest/document.service'
import { HttpEventType, HttpResponse } from '@angular/common/http'
import WS from 'jest-websocket-mock'

describe('ConsumerStatusService', () => {
  let httpTestingController: HttpTestingController
  let consumerStatusService: ConsumerStatusService
  let documentService: DocumentService
  const server = new WS(
    `${environment.webSocketProtocol}//${environment.webSocketHost}${environment.webSocketBaseUrl}status/`,
    { jsonProtocol: true }
  )

  beforeEach(() => {
    TestBed.configureTestingModule({
      providers: [ConsumerStatusService, DocumentService],
      imports: [HttpClientTestingModule],
    })

    httpTestingController = TestBed.inject(HttpTestingController)
    consumerStatusService = TestBed.inject(ConsumerStatusService)
    documentService = TestBed.inject(DocumentService)
  })

  afterEach(() => {
    httpTestingController.verify()
  })

  it('should update status on websocket processing progress', () => {
    const task_id = '1234'
    const status = consumerStatusService.newFileUpload('file.pdf')
    expect(status.getProgress()).toEqual(0)

    consumerStatusService.connect()

    consumerStatusService
      .onDocumentConsumptionFinished()
      .subscribe((filestatus) => {
        expect(filestatus.phase).toEqual(FileStatusPhase.SUCCESS)
      })

    consumerStatusService.onDocumentDetected().subscribe((filestatus) => {
      expect(filestatus.phase).toEqual(FileStatusPhase.STARTED)
    })

    server.send({
      task_id,
      filename: 'file.pdf',
      current_progress: 50,
      max_progress: 100,
      document_id: 12,
      status: 'WORKING',
    })

    expect(status.getProgress()).toBeCloseTo(0.6) // (0.8 * 50/100) + .2
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toEqual([
      status,
    ])

    server.send({
      task_id,
      filename: 'file.pdf',
      current_progress: 100,
      max_progress: 100,
      document_id: 12,
      status: 'SUCCESS',
      message: FILE_STATUS_MESSAGES.finished,
    })

    expect(status.getProgress()).toEqual(1)
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toHaveLength(
      0
    )
    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(1)

    consumerStatusService.disconnect()
  })

  it('should update status on websocket failed progress', () => {
    const task_id = '1234'
    const status = consumerStatusService.newFileUpload('file.pdf')
    status.taskId = task_id
    consumerStatusService.connect()

    consumerStatusService
      .onDocumentConsumptionFailed()
      .subscribe((filestatus) => {
        expect(filestatus.phase).toEqual(FileStatusPhase.FAILED)
      })

    server.send({
      task_id,
      filename: 'file.pdf',
      current_progress: 50,
      max_progress: 100,
      document_id: 12,
    })

    expect(consumerStatusService.getConsumerStatusNotCompleted()).toEqual([
      status,
    ])

    server.send({
      task_id,
      filename: 'file.pdf',
      current_progress: 50,
      max_progress: 100,
      document_id: 12,
      status: 'FAILED',
      message: FILE_STATUS_MESSAGES.document_already_exists,
    })

    expect(consumerStatusService.getConsumerStatusNotCompleted()).toHaveLength(
      0
    )
    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(1)
  })

  it('should update status on upload progress', () => {
    const task_id = '1234'
    const status = consumerStatusService.newFileUpload('file.pdf')

    documentService.uploadDocument({}).subscribe((event) => {
      if (event.type === HttpEventType.Response) {
        status.taskId = event.body['task_id']
        status.message = $localize`Upload complete, waiting...`
      } else if (event.type === HttpEventType.UploadProgress) {
        status.updateProgress(
          FileStatusPhase.UPLOADING,
          event.loaded,
          event.total
        )
      }
    })

    const req = httpTestingController.expectOne(
      `${environment.apiBaseUrl}documents/post_document/`
    )

    req.event(
      new HttpResponse({
        body: {
          task_id,
        },
      })
    )

    req.event({
      type: HttpEventType.UploadProgress,
      loaded: 100,
      total: 300,
    })

    expect(
      consumerStatusService.getConsumerStatus(FileStatusPhase.UPLOADING)
    ).toEqual([status])
    expect(consumerStatusService.getConsumerStatus()).toEqual([status])
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toEqual([
      status,
    ])

    req.event({
      type: HttpEventType.UploadProgress,
      loaded: 300,
      total: 300,
    })

    expect(status.getProgress()).toEqual(0.2) // 0.2 * 300/300
  })

  it('should support dismiss completed', () => {
    consumerStatusService.connect()
    server.send({
      task_id: '1234',
      filename: 'file.pdf',
      current_progress: 100,
      max_progress: 100,
      document_id: 12,
      status: 'SUCCESS',
      message: 'finished',
    })

    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(1)
    consumerStatusService.dismissCompleted()
    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(0)
    consumerStatusService.disconnect()
  })

  it('should support dismiss', () => {
    const task_id = '1234'
    const status = consumerStatusService.newFileUpload('file.pdf')
    status.taskId = task_id
    status.updateProgress(FileStatusPhase.UPLOADING, 50, 100)

    const status2 = consumerStatusService.newFileUpload('file2.pdf')
    status2.updateProgress(FileStatusPhase.UPLOADING, 50, 100)

    expect(
      consumerStatusService.getConsumerStatus(FileStatusPhase.UPLOADING)
    ).toEqual([status, status2])
    expect(consumerStatusService.getConsumerStatus()).toEqual([status, status2])
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toEqual([
      status,
      status2,
    ])

    consumerStatusService.dismiss(status)
    expect(consumerStatusService.getConsumerStatus()).toEqual([status2])

    consumerStatusService.dismiss(status2)
    expect(consumerStatusService.getConsumerStatus()).toHaveLength(0)
  })

  it('should support fail', () => {
    const task_id = '1234'
    const status = consumerStatusService.newFileUpload('file.pdf')
    status.taskId = task_id
    status.updateProgress(FileStatusPhase.UPLOADING, 50, 100)
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toHaveLength(
      1
    )
    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(0)
    consumerStatusService.fail(status, 'fail')
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toHaveLength(
      0
    )
    expect(consumerStatusService.getConsumerStatusCompleted()).toHaveLength(1)
  })

  it('should notify of document created on status message without upload', () => {
    let detected = false
    consumerStatusService.onDocumentDetected().subscribe((filestatus) => {
      expect(filestatus.phase).toEqual(FileStatusPhase.STARTED)
      detected = true
    })

    consumerStatusService.connect()
    server.send({
      task_id: '1234',
      filename: 'file.pdf',
      current_progress: 0,
      max_progress: 100,
      message: 'new_file',
      status: 'STARTED',
    })

    consumerStatusService.disconnect()
    expect(detected).toBeTruthy()
  })

  it('should notify of document in progress without upload', () => {
    consumerStatusService.connect()
    server.send({
      task_id: '1234',
      filename: 'file.pdf',
      current_progress: 50,
      max_progress: 100,
      docuement_id: 12,
      status: 'WORKING',
    })

    consumerStatusService.disconnect()
    expect(consumerStatusService.getConsumerStatusNotCompleted()).toHaveLength(
      1
    )
  })
})