const request = require('../lib/request');
const Config = require('../lib/Config');
const defaultColumns = require('../lib/Controllers/SchemaController')
  .defaultColumns;
const authenticationLoader = require('../lib/Adapters/Auth');
const path = require('path');
const responses = {
  instagram: { data: { id: 'userId' } },
  janrainengage: { stat: 'ok', profile: { identifier: 'userId' } },
  janraincapture: { stat: 'ok', result: 'userId' },
  vkontakte: { response: [{ id: 'userId' }] },
  google: { sub: 'userId' },
  wechat: { errcode: 0 },
  weibo: { uid: 'userId' },
  qq: 'callback( {"openid":"userId"} );', // yes it's like that, run eval in the client :P
};

describe('AuthenticationProviders', function() {
  [
    'facebook',
    'facebookaccountkit',
    'github',
    'instagram',
    'google',
    'linkedin',
    'meetup',
    'twitter',
    'janrainengage',
    'janraincapture',
    'vkontakte',
    'qq',
    'spotify',
    'wechat',
    'weibo',
  ].map(function(providerName) {
    it('Should validate structure of ' + providerName, done => {
      const provider = require('../lib/Adapters/Auth/' + providerName);
      jequal(typeof provider.validateAuthData, 'function');
      jequal(typeof provider.validateAppId, 'function');
      const authDataPromise = provider.validateAuthData({}, {});
      const validateAppIdPromise = provider.validateAppId('app', 'key', {});
      jequal(authDataPromise.constructor, Promise.prototype.constructor);
      jequal(validateAppIdPromise.constructor, Promise.prototype.constructor);
      authDataPromise.then(() => {}, () => {});
      validateAppIdPromise.then(() => {}, () => {});
      done();
    });

    it(`should provide the right responses for adapter ${providerName}`, async () => {
      if (providerName === 'twitter') {
        return;
      }
      spyOn(require('../lib/Adapters/Auth/httpsRequest'), 'get').and.callFake(
        options => {
          if (
            options ===
            'https://oauth.vk.com/access_token?client_id=appId&client_secret=appSecret&v=5.59&grant_type=client_credentials'
          ) {
            return {
              access_token: 'access_token',
            };
          }
          return Promise.resolve(responses[providerName] || { id: 'userId' });
        }
      );
      spyOn(
        require('../lib/Adapters/Auth/httpsRequest'),
        'request'
      ).and.callFake(() => {
        return Promise.resolve(responses[providerName] || { id: 'userId' });
      });
      const provider = require('../lib/Adapters/Auth/' + providerName);
      let params = {};
      if (providerName === 'vkontakte') {
        params = {
          appIds: 'appId',
          appSecret: 'appSecret',
        };
      }
      await provider.validateAuthData({ id: 'userId' }, params);
    });
  });

  const getMockMyOauthProvider = function() {
    return {
      authData: {
        id: '12345',
        access_token: '12345',
        expiration_date: new Date().toJSON(),
      },
      shouldError: false,
      loggedOut: false,
      synchronizedUserId: null,
      synchronizedAuthToken: null,
      synchronizedExpiration: null,

      authenticate: function(options) {
        if (this.shouldError) {
          options.error(this, 'An error occurred');
        } else if (this.shouldCancel) {
          options.error(this, null);
        } else {
          options.success(this, this.authData);
        }
      },
      restoreAuthentication: function(authData) {
        if (!authData) {
          this.synchronizedUserId = null;
          this.synchronizedAuthToken = null;
          this.synchronizedExpiration = null;
          return true;
        }
        this.synchronizedUserId = authData.id;
        this.synchronizedAuthToken = authData.access_token;
        this.synchronizedExpiration = authData.expiration_date;
        return true;
      },
      getAuthType: function() {
        return 'myoauth';
      },
      deauthenticate: function() {
        this.loggedOut = true;
        this.restoreAuthentication(null);
      },
    };
  };

  Parse.User.extend({
    extended: function() {
      return true;
    },
  });

  const createOAuthUser = function(callback) {
    return createOAuthUserWithSessionToken(undefined, callback);
  };

  const createOAuthUserWithSessionToken = function(token, callback) {
    const jsonBody = {
      authData: {
        myoauth: getMockMyOauthProvider().authData,
      },
    };

    const options = {
      method: 'POST',
      headers: {
        'X-Parse-Application-Id': 'test',
        'X-Parse-REST-API-Key': 'rest',
        'X-Parse-Installation-Id': 'yolo',
        'X-Parse-Session-Token': token,
        'Content-Type': 'application/json',
      },
      url: 'http://localhost:8378/1/users',
      body: jsonBody,
    };
    return request(options)
      .then(response => {
        if (callback) {
          callback(null, response, response.data);
        }
        return {
          res: response,
          body: response.data,
        };
      })
      .catch(error => {
        if (callback) {
          callback(error);
        }
        throw error;
      });
  };

  it('should create user with REST API', done => {
    createOAuthUser((error, response, body) => {
      expect(error).toBe(null);
      const b = body;
      ok(b.sessionToken);
      expect(b.objectId).not.toBeNull();
      expect(b.objectId).not.toBeUndefined();
      const sessionToken = b.sessionToken;
      const q = new Parse.Query('_Session');
      q.equalTo('sessionToken', sessionToken);
      q.first({ useMasterKey: true })
        .then(res => {
          if (!res) {
            fail('should not fail fetching the session');
            done();
            return;
          }
          expect(res.get('installationId')).toEqual('yolo');
          done();
        })
        .catch(() => {
          fail('should not fail fetching the session');
          done();
        });
    });
  });

  it('should only create a single user with REST API', done => {
    let objectId;
    createOAuthUser((error, response, body) => {
      expect(error).toBe(null);
      const b = body;
      expect(b.objectId).not.toBeNull();
      expect(b.objectId).not.toBeUndefined();
      objectId = b.objectId;

      createOAuthUser((error, response, body) => {
        expect(error).toBe(null);
        const b = body;
        expect(b.objectId).not.toBeNull();
        expect(b.objectId).not.toBeUndefined();
        expect(b.objectId).toBe(objectId);
        done();
      });
    });
  });

  it("should fail to link if session token don't match user", done => {
    Parse.User.signUp('myUser', 'password')
      .then(user => {
        return createOAuthUserWithSessionToken(user.getSessionToken());
      })
      .then(() => {
        return Parse.User.logOut();
      })
      .then(() => {
        return Parse.User.signUp('myUser2', 'password');
      })
      .then(user => {
        return createOAuthUserWithSessionToken(user.getSessionToken());
      })
      .then(fail, ({ data }) => {
        expect(data.code).toBe(208);
        expect(data.error).toBe('this auth is already used');
        done();
      })
      .catch(done.fail);
  });

  it('unlink and link with custom provider', async () => {
    const provider = getMockMyOauthProvider();
    Parse.User._registerAuthenticationProvider(provider);
    const model = await Parse.User._logInWith('myoauth');
    ok(model instanceof Parse.User, 'Model should be a Parse.User');
    strictEqual(Parse.User.current(), model);
    ok(model.extended(), 'Should have used the subclass.');
    strictEqual(provider.authData.id, provider.synchronizedUserId);
    strictEqual(provider.authData.access_token, provider.synchronizedAuthToken);
    strictEqual(
      provider.authData.expiration_date,
      provider.synchronizedExpiration
    );
    ok(model._isLinked('myoauth'), 'User should be linked to myoauth');

    await model._unlinkFrom('myoauth');
    ok(!model._isLinked('myoauth'), 'User should not be linked to myoauth');
    ok(!provider.synchronizedUserId, 'User id should be cleared');
    ok(!provider.synchronizedAuthToken, 'Auth token should be cleared');
    ok(!provider.synchronizedExpiration, 'Expiration should be cleared');
    // make sure the auth data is properly deleted
    const config = Config.get(Parse.applicationId);
    const res = await config.database.adapter.find(
      '_User',
      {
        fields: Object.assign(
          {},
          defaultColumns._Default,
          defaultColumns._Installation
        ),
      },
      { objectId: model.id },
      {}
    );
    expect(res.length).toBe(1);
    expect(res[0]._auth_data_myoauth).toBeUndefined();
    expect(res[0]._auth_data_myoauth).not.toBeNull();

    await model._linkWith('myoauth');

    ok(provider.synchronizedUserId, 'User id should have a value');
    ok(provider.synchronizedAuthToken, 'Auth token should have a value');
    ok(provider.synchronizedExpiration, 'Expiration should have a value');
    ok(model._isLinked('myoauth'), 'User should be linked to myoauth');
  });

  function validateValidator(validator) {
    expect(typeof validator).toBe('function');
  }

  function validateAuthenticationHandler(authenticationHandler) {
    expect(authenticationHandler).not.toBeUndefined();
    expect(typeof authenticationHandler.getValidatorForProvider).toBe(
      'function'
    );
    expect(typeof authenticationHandler.getValidatorForProvider).toBe(
      'function'
    );
  }

  function validateAuthenticationAdapter(authAdapter) {
    expect(authAdapter).not.toBeUndefined();
    if (!authAdapter) {
      return;
    }
    expect(typeof authAdapter.validateAuthData).toBe('function');
    expect(typeof authAdapter.validateAppId).toBe('function');
  }

  it('properly loads custom adapter', done => {
    const validAuthData = {
      id: 'hello',
      token: 'world',
    };
    const adapter = {
      validateAppId: function() {
        return Promise.resolve();
      },
      validateAuthData: function(authData) {
        if (
          authData.id == validAuthData.id &&
          authData.token == validAuthData.token
        ) {
          return Promise.resolve();
        }
        return Promise.reject();
      },
    };

    const authDataSpy = spyOn(adapter, 'validateAuthData').and.callThrough();
    const appIdSpy = spyOn(adapter, 'validateAppId').and.callThrough();

    const authenticationHandler = authenticationLoader({
      customAuthentication: adapter,
    });

    validateAuthenticationHandler(authenticationHandler);
    const validator = authenticationHandler.getValidatorForProvider(
      'customAuthentication'
    );
    validateValidator(validator);

    validator(validAuthData).then(
      () => {
        expect(authDataSpy).toHaveBeenCalled();
        // AppIds are not provided in the adapter, should not be called
        expect(appIdSpy).not.toHaveBeenCalled();
        done();
      },
      err => {
        jfail(err);
        done();
      }
    );
  });

  it('properly loads custom adapter module object', done => {
    const authenticationHandler = authenticationLoader({
      customAuthentication: path.resolve('./spec/support/CustomAuth.js'),
    });

    validateAuthenticationHandler(authenticationHandler);
    const validator = authenticationHandler.getValidatorForProvider(
      'customAuthentication'
    );
    validateValidator(validator);

    validator({
      token: 'my-token',
    }).then(
      () => {
        done();
      },
      err => {
        jfail(err);
        done();
      }
    );
  });

  it('properly loads custom adapter module object (again)', done => {
    const authenticationHandler = authenticationLoader({
      customAuthentication: {
        module: path.resolve('./spec/support/CustomAuthFunction.js'),
        options: { token: 'valid-token' },
      },
    });

    validateAuthenticationHandler(authenticationHandler);
    const validator = authenticationHandler.getValidatorForProvider(
      'customAuthentication'
    );
    validateValidator(validator);

    validator({
      token: 'valid-token',
    }).then(
      () => {
        done();
      },
      err => {
        jfail(err);
        done();
      }
    );
  });

  it('properly loads a default adapter with options', () => {
    const options = {
      facebook: {
        appIds: ['a', 'b'],
      },
    };
    const {
      adapter,
      appIds,
      providerOptions,
    } = authenticationLoader.loadAuthAdapter('facebook', options);
    validateAuthenticationAdapter(adapter);
    expect(appIds).toEqual(['a', 'b']);
    expect(providerOptions).toEqual(options.facebook);
  });

  it('properly loads a custom adapter with options', () => {
    const options = {
      custom: {
        validateAppId: () => {},
        validateAuthData: () => {},
        appIds: ['a', 'b'],
      },
    };
    const {
      adapter,
      appIds,
      providerOptions,
    } = authenticationLoader.loadAuthAdapter('custom', options);
    validateAuthenticationAdapter(adapter);
    expect(appIds).toEqual(['a', 'b']);
    expect(providerOptions).toEqual(options.custom);
  });

  it('properly loads Facebook accountkit adapter with options', () => {
    const options = {
      facebookaccountkit: {
        appIds: ['a', 'b'],
        appSecret: 'secret',
      },
    };
    const {
      adapter,
      appIds,
      providerOptions,
    } = authenticationLoader.loadAuthAdapter('facebookaccountkit', options);
    validateAuthenticationAdapter(adapter);
    expect(appIds).toEqual(['a', 'b']);
    expect(providerOptions.appSecret).toEqual('secret');
  });

  it('should fail if Facebook appIds is not configured properly', done => {
    const options = {
      facebookaccountkit: {
        appIds: [],
      },
    };
    const { adapter, appIds } = authenticationLoader.loadAuthAdapter(
      'facebookaccountkit',
      options
    );
    adapter.validateAppId(appIds).then(done.fail, err => {
      expect(err.code).toBe(Parse.Error.OBJECT_NOT_FOUND);
      done();
    });
  });

  it('should fail to validate Facebook accountkit auth with bad token', done => {
    const options = {
      facebookaccountkit: {
        appIds: ['a', 'b'],
      },
    };
    const authData = {
      id: 'fakeid',
      access_token: 'badtoken',
    };
    const { adapter } = authenticationLoader.loadAuthAdapter(
      'facebookaccountkit',
      options
    );
    adapter.validateAuthData(authData).then(done.fail, err => {
      expect(err.code).toBe(190);
      expect(err.type).toBe('OAuthException');
      done();
    });
  });

  it('should fail to validate Facebook accountkit auth with bad token regardless of app secret proof', done => {
    const options = {
      facebookaccountkit: {
        appIds: ['a', 'b'],
        appSecret: 'badsecret',
      },
    };
    const authData = {
      id: 'fakeid',
      access_token: 'badtoken',
    };
    const { adapter, providerOptions } = authenticationLoader.loadAuthAdapter(
      'facebookaccountkit',
      options
    );
    adapter.validateAuthData(authData, providerOptions).then(done.fail, err => {
      expect(err.code).toBe(190);
      expect(err.type).toBe('OAuthException');
      done();
    });
  });
});

describe('google auth adapter', () => {
  const google = require('../lib/Adapters/Auth/google');
  const httpsRequest = require('../lib/Adapters/Auth/httpsRequest');

  it('should use id_token for validation is passed', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ sub: 'userId' });
    });
    await google.validateAuthData({ id: 'userId', id_token: 'the_token' }, {});
  });

  it('should use id_token for validation is passed and responds with user_id', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ user_id: 'userId' });
    });
    await google.validateAuthData({ id: 'userId', id_token: 'the_token' }, {});
  });

  it('should use access_token for validation is passed and responds with user_id', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ user_id: 'userId' });
    });
    await google.validateAuthData(
      { id: 'userId', access_token: 'the_token' },
      {}
    );
  });

  it('should use access_token for validation is passed with sub', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ sub: 'userId' });
    });
    await google.validateAuthData({ id: 'userId', id_token: 'the_token' }, {});
  });

  it('should fail when the id_token is invalid', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ sub: 'badId' });
    });
    try {
      await google.validateAuthData(
        { id: 'userId', id_token: 'the_token' },
        {}
      );
      fail();
    } catch (e) {
      expect(e.message).toBe('Google auth is invalid for this user.');
    }
  });

  it('should fail when the access_token is invalid', async () => {
    spyOn(httpsRequest, 'get').and.callFake(() => {
      return Promise.resolve({ sub: 'badId' });
    });
    try {
      await google.validateAuthData(
        { id: 'userId', access_token: 'the_token' },
        {}
      );
      fail();
    } catch (e) {
      expect(e.message).toBe('Google auth is invalid for this user.');
    }
  });
});