import childProcess from 'child_process';
import request from 'supertest';
import scClient from 'socketcluster-client';

describe('Server', function () {
  let scServer: childProcess.ChildProcess;
  beforeAll(async function () {
    scServer = childProcess.fork(__dirname + '/../bin/redux-devtools.js');
    await new Promise((resolve) => setTimeout(resolve, 3000));
  });

  afterAll(function () {
    if (scServer) {
      scServer.kill();
    }
  });

  describe('Express backend', function () {
    it('loads main page', function () {
      return new Promise<void>((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000')
          .get('/')
          .expect('Content-Type', /text\/html/)
          .expect(200)
          .then(function (res: { text: string }) {
            expect(res.text).toMatch(/<title>Redux DevTools<\/title>/);
            done();
          });
      });
    });

    it('resolves an inexistent url', function () {
      return new Promise((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000/jreerfr/123')
          .get('/')
          .expect('Content-Type', /text\/html/)
          .expect(200, done);
      });
    });
  });

  describe('Realtime monitoring', function () {
    let socket: scClient.SCClientSocket,
      socket2: scClient.SCClientSocket,
      channel;
    beforeAll(function () {
      socket = scClient.connect({ hostname: 'localhost', port: 8000 });
      socket.connect();
      socket.on('error', function (error) {
        console.error('Socket1 error', error); // eslint-disable-line no-console
      });
      socket2 = scClient.connect({ hostname: 'localhost', port: 8000 });
      socket2.connect();
      socket.on('error', function (error) {
        console.error('Socket2 error', error); // eslint-disable-line no-console
      });
    });

    afterAll(function () {
      socket.disconnect();
      socket2.disconnect();
    });

    it('should connect', function () {
      return new Promise<void>((done) => {
        socket.on('connect', function (status) {
          expect(status.id).toBeTruthy();
          done();
        });
      });
    });

    it('should login', function () {
      socket.emit(
        'login',
        'master',
        function (error: Error | undefined, channelName: string) {
          if (error) {
            /* eslint-disable-next-line no-console */
            console.log(error);
            return;
          }
          expect(channelName).toBe('respond');
          channel = socket.subscribe(channelName);
          expect(channel.SUBSCRIBED).toBe('subscribed');
        }
      );
    });

    it('should send message', function () {
      return new Promise<void>((done) => {
        const data = {
          type: 'ACTION',
          payload: {
            todos: 'do some',
          },
          action: {
            timestamp: 1483349708506,
            action: {
              type: 'ADD_TODO',
              text: 'hggg',
            },
          },
          instanceId: 'tAmA7H5fclyWhvizAAAi',
          name: 'LoggerInstance',
          id: 'tAmA7H5fclyWhvizAAAi',
        };

        socket2.emit(
          'login',
          '',
          function (error: Error | undefined, channelName: string) {
            if (error) {
              /* eslint-disable-next-line no-console */
              console.log(error);
              return;
            }
            expect(channelName).toBe('log');
            const channel2 = socket2.subscribe(channelName);
            expect(channel2.SUBSCRIBED).toBe('subscribed');
            channel2.on('subscribe', function () {
              channel2.watch(function (message) {
                expect(message).toEqual(data);
                done();
              });
              socket.emit(channelName, data);
            });
          }
        );
      });
    });
  });

  describe('REST backend', function () {
    let id: string;
    const report = {
      type: 'ACTIONS',
      title: 'Test report',
      description: 'Test body report',
      action: 'SOME_FINAL_ACTION',
      payload: '[{"type":"ADD_TODO","text":"hi"},{"type":"SOME_FINAL_ACTION"}]',
      preloadedState:
        '{"todos":[{"text":"Use Redux","completed":false,"id":0}]}',
      userAgent:
        'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_1) ' +
        'AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.95 Safari/537.36',
    };
    it('should add a report', function () {
      return new Promise<void>((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000')
          .post('/')
          .send(report)
          .set('Accept', 'application/json')
          .expect('Content-Type', /application\/json/)
          .expect(200)
          .then(function (res: { body: { id: string } }) {
            id = res.body.id;
            expect(id).toBeTruthy();
            done();
          });
      });
    });

    it('should get the report', function () {
      return new Promise<void>((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000')
          .post('/')
          .send({
            op: 'get',
            id: id,
          })
          .set('Accept', 'application/json')
          .expect('Content-Type', /application\/json/)
          .expect(200)
          .then(function (res: { body: unknown }) {
            expect(res.body).toMatchObject(report);
            done();
          });
      });
    });

    it('should list reports', function () {
      return new Promise<void>((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000')
          .post('/')
          .send({
            op: 'list',
          })
          .set('Accept', 'application/json')
          .expect('Content-Type', /application\/json/)
          .expect(200)
          .then(function (res: {
            body: { id: string; title: string | null; added: string | null }[];
          }) {
            expect(res.body).toHaveLength(1);
            expect(res.body[0].id).toBe(id);
            expect(res.body[0].title).toBe('Test report');
            expect(res.body[0].added).toBeTruthy();
            done();
          });
      });
    });
  });

  describe('GraphQL backend', function () {
    it('should get the report', function () {
      return new Promise<void>((done) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        request('http://localhost:8000')
          .post('/graphql')
          .send({
            query: '{ reports { id, type, title } }',
          })
          .set('Accept', 'application/json')
          .expect('Content-Type', /application\/json/)
          .expect(200)
          .then(function (res: {
            body: {
              data: {
                reports: {
                  id: string;
                  title: string | null;
                  type: string | null;
                }[];
              };
            };
          }) {
            const reports = res.body.data.reports;
            expect(reports).toHaveLength(1);
            expect(reports[0].id).toBeTruthy();
            expect(reports[0].title).toBe('Test report');
            expect(reports[0].type).toBe('ACTIONS');
            done();
          });
      });
    });
  });
});