import { Test, TestingModule } from '@nestjs/testing';
import { Job } from 'bull';
import { join } from 'path';
import { ReposService } from '../repos/repos.service';
import { PipelineUnits } from './enums/pipeline-units.enum';
import { PipelineTaskConsumer } from './pipeline-task.consumer';
import { PipelineTask } from './pipeline-task.entity';
import { PipelineTasksService } from './pipeline-tasks.service';
import { PipelineTaskLogMessage } from './models/pipeline-task-log-message.module';
import { Pipeline } from '../pipelines/pipeline.entity';
import { Project } from '../projects/project.entity';
import { TaskStatuses } from './enums/task-statuses.enum';
import { PipelineTaskLogsService } from './pipeline-task-logs.service';
import { ApplicationException } from '../commons/exceptions/application.exception';

describe('PipelineTaskConsumer', () => {
  let consumer: PipelineTaskConsumer;
  let tasksService: PipelineTasksService;
  let logsService: PipelineTaskLogsService;
  const getJob = () =>
    ({
      data: {
        pipelineId: 'test',
        units: [PipelineUnits.checkout, PipelineUnits.test],
      },
    } as Job<PipelineTask>);

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        {
          provide: PipelineTasksService,
          useValue: {
            doNextTask: () => undefined,
            updateTask: async (value) => value,
          },
        },
        {
          provide: ReposService,
          useValue: {
            getWorkspaceRootByTask: () => 'workspace-root',
            checkout: async () => undefined,
          },
        },
        {
          provide: PipelineTaskLogsService,
          useValue: {
            recordLog: async () => undefined,
            readLogsAsPipelineTaskLogs: async () => [],
          },
        },
        PipelineTaskConsumer,
      ],
    }).compile();

    tasksService = module.get(PipelineTasksService);
    logsService = module.get(PipelineTaskLogsService);
    consumer = module.get(PipelineTaskConsumer);
  });

  it('should be defined', () => {
    expect(consumer).toBeDefined();
  });

  describe('onCompleted', () => {
    it('should call doNextTask()', () => {
      const job = getJob();
      const doNextTask = jest.spyOn(tasksService, 'doNextTask');
      consumer.onCompleted(job);
      expect(doNextTask).toHaveBeenCalledTimes(1);
    });
  });

  describe('runScript', () => {
    let logText: string;
    let errorText: string;
    let recordLog: jest.SpyInstance;
    beforeEach(() => {
      logText = '';
      errorText = '';
      recordLog = jest
        .spyOn(logsService, 'recordLog')
        .mockImplementation(async (log: PipelineTaskLogMessage) => {
          logText += log.message;
          if (log.isError) {
            errorText += log.message;
          }
        });
    });
    it('should success and log right message', async () => {
      await consumer.runScript(
        'node one-second-work.js',
        join(__dirname, '../../test/data'),
      );
      expect(logText).toMatch(/10.+20.+30.+40.+50.+60.+70.+80.+90/s);
      expect(recordLog).toHaveBeenCalledTimes(10);
      expect(
        ((recordLog.mock.calls[8][0] as unknown) as PipelineTaskLogMessage)
          .message,
      ).toMatch(/^90/);
    });
    it('should failed and log right message', async () => {
      await expect(
        consumer.runScript(
          'node bad-work.js',
          join(__dirname, '../../test/data'),
        ),
      ).rejects.toThrowError(/exec script failed/);
      expect(errorText).toMatch(/Error Message/);
      const logs = recordLog.mock.calls
        .map((call) => ((call[0] as unknown) as PipelineTaskLogMessage).message)
        .join('');
      expect(logs).toMatch(/10.+20.+30.+40.+50/s);
    });
    it('should log with task', async () => {
      const task = new PipelineTask();
      task.id = 'test';

      const recordLog = jest.spyOn(logsService, 'recordLog');
      await expect(
        consumer.runScript(
          'node bad-work.js',
          join(__dirname, '../../test/data'),
          task,
        ),
      ).rejects.toThrowError(/exec script failed/);

      expect(errorText).toMatch(/Error Message 2/);
      expect(
        ((recordLog.mock.calls[2][0] as unknown) as PipelineTaskLogMessage)
          .task,
      ).toMatchObject(task);
    });
  });

  describe('doTask', () => {
    let task: PipelineTask;

    beforeEach(() => {
      task = new PipelineTask();
      task.id = 'test-id';
      task.logs = [];
      task.pipeline = new Pipeline();
      task.pipeline.workUnitMetadata = {
        version: 1,
        units: [
          {
            type: PipelineUnits.checkout,
            scripts: [],
          },
          {
            type: PipelineUnits.installDependencies,
            scripts: ["echo ' Hello, Fennec!'"],
          },
        ],
      };
      task.units = task.pipeline.workUnitMetadata.units.map(
        (unit) => unit.type,
      );
      task.pipeline.project = new Project();
      task.pipeline.project.name = 'test-project';
    });

    it('success and update task on db', async () => {
      const job: Job = ({
        data: task,
        update: jest.fn().mockImplementation(() => undefined),
      } as unknown) as Job;

      jest
        .spyOn(consumer, 'runScript')
        .mockImplementation(async () => undefined);
      const updateTask = jest.spyOn(tasksService, 'updateTask');

      await consumer.doTask(job);

      expect(updateTask).toHaveBeenCalledTimes(4);
      expect(updateTask.mock.calls[0][0].startedAt).toBeDefined();
      expect(updateTask.mock.calls[1][0].endedAt).toBeDefined();
      expect(updateTask.mock.calls[1][0].status).toEqual(TaskStatuses.success);
    });
    it('failed and update task on db', async () => {
      const job: Job = ({
        data: task,
        update: jest.fn().mockImplementation(() => undefined),
      } as unknown) as Job;

      jest.spyOn(consumer, 'runScript').mockImplementation(async () => {
        throw new ApplicationException('exec script failed');
      });
      const updateTask = jest.spyOn(tasksService, 'updateTask');

      await consumer.doTask(job);

      expect(updateTask).toHaveBeenCalledTimes(4);
      expect(updateTask.mock.calls[0][0].startedAt).toBeDefined();
      expect(updateTask.mock.calls[1][0].endedAt).toBeDefined();
      expect(updateTask.mock.calls[1][0].status).toEqual(TaskStatuses.failed);
    });
    it('should do all task', async () => {
      const job: Job = ({
        data: task,
        update: jest.fn().mockImplementation(() => undefined),
      } as unknown) as Job;

      const runScript = jest
        .spyOn(consumer, 'runScript')
        .mockImplementation(async () => undefined);
      const updateTask = jest.spyOn(tasksService, 'updateTask');

      await consumer.doTask(job);

      expect(runScript).toHaveBeenCalledTimes(1);
      expect(updateTask).toHaveBeenCalledTimes(4);
      const taskDto: PipelineTask = updateTask.mock.calls[0][0];
      expect(taskDto.logs).toHaveLength(2);
      expect(taskDto.logs[0].status).toEqual(TaskStatuses.success);
      expect(taskDto.logs[0].unit).toEqual(PipelineUnits.checkout);
    });
    it('should log error message', async () => {
      const job: Job = ({
        data: task,
        update: jest.fn().mockImplementation(() => undefined),
      } as unknown) as Job;

      const runScript = jest
        .spyOn(consumer, 'runScript')
        .mockImplementation(async () => {
          throw new Error('bad message');
        });
      const updateTask = jest.spyOn(tasksService, 'updateTask');

      await consumer.doTask(job);

      expect(updateTask).toHaveBeenCalledTimes(4);
      const taskDto: PipelineTask = updateTask.mock.calls[0][0];
      expect(taskDto.logs).toHaveLength(2);
      expect(taskDto.logs[0].status).toEqual(TaskStatuses.success);
      expect(taskDto.logs[1].status).toEqual(TaskStatuses.failed);
    });
  });
});