import expect from 'app/test/unexpected';
import sinon from 'sinon';

import refreshTokenMiddleware from 'app/components/user/middlewares/refreshTokenMiddleware';
import { browserHistory } from 'app/services/history';
import * as authentication from 'app/services/api/authentication';
import { InternalServerError } from 'app/services/request';
import { updateToken } from 'app/components/accounts/actions';

const refreshToken = 'foo';
const expiredToken =
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE0NzA3NjE0NDMsImV4cCI6MTQ3MDc2MTQ0MywiaWF0IjoxNDcwNzYxNDQzLCJqdGkiOiJpZDEyMzQ1NiJ9.gWdnzfQQvarGpkbldUvB8qdJZSVkvdNtCbhbbl2yJW8';
// valid till 2100 year
const validToken =
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE0NzA3NjE5NzcsImV4cCI6NDEwMjQ0NDgwMCwiaWF0IjoxNDcwNzYxOTc3LCJqdGkiOiJpZDEyMzQ1NiJ9.M4KY4QgHOUzhpAZjWoHJbGsEJPR-RBsJ1c1BKyxvAoU';

describe('refreshTokenMiddleware', () => {
  let middleware;
  let getState;
  let dispatch;

  const email = 'test@email.com';

  beforeEach(() => {
    sinon
      .stub(authentication, 'requestToken')
      .named('authentication.requestToken');
    sinon.stub(authentication, 'logout').named('authentication.logout');
    sinon.stub(browserHistory, 'push');

    getState = sinon.stub().named('store.getState');
    dispatch = sinon
      .spy(arg => (typeof arg === 'function' ? arg(dispatch, getState) : arg))
      .named('store.dispatch');

    middleware = refreshTokenMiddleware({ getState, dispatch } as any);
  });

  afterEach(() => {
    (authentication.requestToken as any).restore();
    (authentication.logout as any).restore();
    (browserHistory.push as any).restore();
  });

  function assertRelogin() {
    expect(dispatch, 'to have a call satisfying', [
      {
        type: 'auth:setCredentials',
        payload: {
          login: email,
          returnUrl: expect.it('to be a string'),
        },
      },
    ]);

    expect(browserHistory.push, 'to have a call satisfying', ['/login']);
  }

  it('must be till 2100 to test with validToken', () =>
    expect(new Date().getFullYear(), 'to be less than', 2100));

  describe('#before', () => {
    describe('when token expired', () => {
      beforeEach(() => {
        const account = {
          id: 42,
          email,
          token: expiredToken,
          refreshToken,
        };
        getState.returns({
          accounts: {
            active: account.id,
            available: [account],
          },
          auth: {
            credentials: {},
          },
          user: {},
        });
      });

      it('should request new token', () => {
        const data = {
          url: 'foo',
          options: {
            headers: {},
          },
        };

        (authentication.requestToken as any).returns(
          Promise.resolve(validToken),
        );

        return middleware.before(data).then(resp => {
          expect(resp, 'to satisfy', data);

          expect(authentication.requestToken, 'to have a call satisfying', [
            refreshToken,
          ]);
        });
      });

      it('should not apply to refresh-token request', () => {
        const data = { url: '/refresh-token', options: {} };
        const resp = middleware.before(data);

        return expect(resp, 'to be fulfilled with', data).then(() =>
          expect(authentication.requestToken, 'was not called'),
        );
      });

      it('should not auto refresh token if options.token specified', () => {
        const data = {
          url: 'foo',
          options: { token: 'foo' },
        };
        middleware.before(data);

        expect(authentication.requestToken, 'was not called');
      });

      it('should update user with new token', () => {
        const data = {
          url: 'foo',
          options: {
            headers: {},
          },
        };

        (authentication.requestToken as any).returns(
          Promise.resolve(validToken),
        );

        return middleware
          .before(data)
          .then(() =>
            expect(dispatch, 'to have a call satisfying', [
              updateToken(validToken),
            ]),
          );
      });

      it('should relogin if token can not be parsed', () => {
        const account = {
          id: 42,
          email,
          token: 'realy bad token',
          refreshToken,
        };
        getState.returns({
          accounts: {
            active: account.id,
            available: [account],
          },
          auth: {
            credentials: {},
          },
          user: {},
        });

        const req = { url: 'foo', options: {} };

        return expect(middleware.before(req), 'to be rejected with', {
          message: 'Invalid token',
        }).then(() => {
          expect(authentication.requestToken, 'was not called');

          assertRelogin();
        });
      });

      it('should relogin if token request failed', () => {
        (authentication.requestToken as any).returns(Promise.reject());

        return expect(
          middleware.before({ url: 'foo', options: {} }),
          'to be rejected',
        ).then(() => assertRelogin());
      });

      it('should not logout if request failed with 5xx', () => {
        const resp = new InternalServerError({}, { status: 500 });

        (authentication.requestToken as any).returns(Promise.reject(resp));

        return expect(
          middleware.before({ url: 'foo', options: {} }),
          'to be rejected with',
          resp,
        ).then(() =>
          expect(dispatch, 'to have no calls satisfying', [
            { payload: { isGuest: true } },
          ]),
        );
      });
    });

    it('should not be applied if no token', () => {
      getState.returns({
        accounts: {
          active: null,
          available: [],
        },
        user: {},
      });

      const data = {
        url: 'foo',
        options: {},
      };
      const resp = middleware.before(data);

      return expect(resp, 'to be fulfilled with', data).then(() =>
        expect(authentication.requestToken, 'was not called'),
      );
    });
  });

  describe('#catch', () => {
    const expiredResponse = {
      name: 'Unauthorized',
      message: 'Token expired',
      code: 0,
      status: 401,
      type: 'yii\\web\\UnauthorizedHttpException',
    };

    const badTokenReponse = {
      name: 'Unauthorized',
      message: 'You are requesting with an invalid credential.',
      code: 0,
      status: 401,
      type: 'yii\\web\\UnauthorizedHttpException',
    };

    const incorrectTokenReponse = {
      name: 'Unauthorized',
      message: 'Incorrect token',
      code: 0,
      status: 401,
      type: 'yii\\web\\UnauthorizedHttpException',
    };

    let restart;

    beforeEach(() => {
      getState.returns({
        accounts: {
          active: 1,
          available: [
            {
              id: 1,
              email,
              token: 'old token',
              refreshToken,
            },
          ],
        },
        user: {},
      });

      restart = sinon.stub().named('restart');

      (authentication.requestToken as any).returns(Promise.resolve(validToken));
    });

    function assertNewTokenRequest() {
      expect(authentication.requestToken, 'to have a call satisfying', [
        refreshToken,
      ]);
      expect(restart, 'was called');
      expect(dispatch, 'was called');
    }

    it('should request new token if expired', () =>
      expect(
        middleware.catch(expiredResponse, { options: {} }, restart),
        'to be fulfilled',
      ).then(assertNewTokenRequest));

    it('should request new token if invalid credential', () =>
      expect(
        middleware.catch(badTokenReponse, { options: {} }, restart),
        'to be fulfilled',
      ).then(assertNewTokenRequest));

    it('should request new token if token is incorrect', () =>
      expect(
        middleware.catch(incorrectTokenReponse, { options: {} }, restart),
        'to be fulfilled',
      ).then(assertNewTokenRequest));

    it('should relogin if no refreshToken', () => {
      getState.returns({
        accounts: {
          active: 1,
          available: [
            {
              id: 1,
              email,
              refreshToken: null,
            },
          ],
        },
        auth: {
          credentials: {},
        },
        user: {},
      });

      return expect(
        middleware.catch(incorrectTokenReponse, { options: {} }, restart),
        'to be rejected',
      ).then(() => {
        assertRelogin();
      });
    });

    it('should pass the request through if options.token specified', () => {
      const promise = middleware.catch(
        expiredResponse,
        {
          options: {
            token: 'foo',
          },
        },
        restart,
      );

      return expect(promise, 'to be rejected with', expiredResponse).then(
        () => {
          expect(restart, 'was not called');
          expect(authentication.requestToken, 'was not called');
        },
      );
    });

    it('should pass the rest of failed requests through', () => {
      const resp = {};

      const promise = middleware.catch(
        resp,
        {
          options: {},
        },
        restart,
      );

      return expect(promise, 'to be rejected with', resp).then(() => {
        expect(restart, 'was not called');
        expect(authentication.requestToken, 'was not called');
      });
    });
  });
});