/*!
 * @license
 * Copyright 2019 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { async, TestBed } from '@angular/core/testing';
import { ActivatedRouteSnapshot, Router } from '@angular/router';
import { setupTestBed } from '../testing/setupTestBed';
import { CoreTestingModule } from '../testing/core.testing.module';
import { AuthGuardSsoRoleService } from './auth-guard-sso-role.service';
import { JwtHelperService } from './jwt-helper.service';

describe('Auth Guard SSO role service', () => {

    let authGuard: AuthGuardSsoRoleService;
    let jwtHelperService: JwtHelperService;
    let routerService: Router;

    setupTestBed({
        imports: [CoreTestingModule]
    });

    beforeEach(() => {
        localStorage.clear();
        authGuard = TestBed.get(AuthGuardSsoRoleService);
        jwtHelperService = TestBed.get(JwtHelperService);
        routerService = TestBed.get(Router);
    });

    it('Should canActivate be true if the Role is present int the JWT token', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({ 'realm_access': { roles: ['role1'] } });

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        router.data = { 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(router, null)).toBeTruthy();
    }));

    it('Should canActivate be false if the Role is not present int the JWT token', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({ 'realm_access': { roles: ['role3'] } });

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        router.data = { 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(router, null)).toBeFalsy();
    }));

    it('Should not redirect if canActivate is', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({ 'realm_access': { roles: ['role1'] } });
        spyOn(routerService, 'navigate').and.stub();

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        router.data = { 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(router, null)).toBeTruthy();
        expect(routerService.navigate).not.toHaveBeenCalled();
    }));

    it('Should canActivate return false if the data Role to check is empty', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({ 'realm_access': { roles: ['role1', 'role3'] } });

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();

        expect(authGuard.canActivate(router, null)).toBeFalsy();
    }));

    it('Should canActivate return false if the realm_access is not present', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({});

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();

        expect(authGuard.canActivate(router, null)).toBeFalsy();
    }));

    it('Should redirect to the redirectURL if canActivate is false and redirectUrl is in data', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({});
        spyOn(routerService, 'navigate').and.stub();

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        router.data = { 'roles': ['role1', 'role2'], 'redirectUrl': 'no-role-url' };

        expect(authGuard.canActivate(router, null)).toBeFalsy();
        expect(routerService.navigate).toHaveBeenCalledWith(['/no-role-url']);
    }));

    it('Should not redirect if canActivate is false and redirectUrl is not in  data', async(() => {
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
        spyOn(jwtHelperService, 'decodeToken').and.returnValue({});
        spyOn(routerService, 'navigate').and.stub();

        const router: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        router.data = { 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(router, null)).toBeFalsy();
        expect(routerService.navigate).not.toHaveBeenCalled();
    }));

    it('Should canActivate be false hasRealm is true and hasClientRole is false', () => {
        const route: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        spyOn(authGuard, 'hasRealmRoles').and.returnValue(true);
        spyOn(authGuard, 'hasRealmRolesForClientRole').and.returnValue(false);

        route.params = { appName: 'fakeapp' };
        route.data = { 'clientRoles': ['appName'], 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(route, null)).toBeFalsy();
    });

    it('Should canActivate be false if hasRealm is false and hasClientRole is true', () => {
        const route: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        spyOn(authGuard, 'hasRealmRoles').and.returnValue(false);
        spyOn(authGuard, 'hasRealmRolesForClientRole').and.returnValue(true);

        route.params = { appName: 'fakeapp' };
        route.data = { 'clientRoles': ['fakeapp'], 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(route, null)).toBeFalsy();
    });

    it('Should canActivate be true if both Real Role and Client Role are present int the JWT token', () => {
        const route: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');

        spyOn(jwtHelperService, 'decodeToken').and.returnValue({
            'realm_access': { roles: ['role1'] },
            'resource_access': { fakeapp: { roles: ['role2'] } }
        });

        route.params = { appName: 'fakeapp' };
        route.data = { 'clientRoles': ['appName'], 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(route, null)).toBeTruthy();
    });

    it('Should canActivate be false if the Client Role is not present int the JWT token with the correct role', () => {
        const route: ActivatedRouteSnapshot = new ActivatedRouteSnapshot();
        spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');

        spyOn(jwtHelperService, 'decodeToken').and.returnValue({
            'realm_access': { roles: ['role1'] },
            'resource_access': { fakeapp: { roles: ['role3'] } }
        });

        route.params = { appName: 'fakeapp' };
        route.data = { 'clientRoles': ['appName'], 'roles': ['role1', 'role2'] };

        expect(authGuard.canActivate(route, null)).toBeFalsy();
    });

    describe('ClientRole ', () => {

        it('Should be true if the resource_access contains the single role', () => {
            spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');

            spyOn(jwtHelperService, 'decodeToken').and.returnValue(
                {
                    'resource_access': { fakeapp: { roles: ['role1'] } }
                });

            const result = authGuard.hasRealmRolesForClientRole('fakeapp', ['role1']);
            expect(result).toBeTruthy();
        });

        it('Should be true if the resource_access contains at least one of the roles', () => {
            spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');

            spyOn(jwtHelperService, 'decodeToken').and.returnValue(
                {
                    'resource_access': { fakeapp: { roles: ['role1'] } }
                });

            const result = authGuard.hasRealmRolesForClientRole('fakeapp', ['role1', 'role2']);
            expect(result).toBeTruthy();
        });

        it('Should be false if the resource_access does not contain the role', () => {
            spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
            spyOn(jwtHelperService, 'decodeToken').and.returnValue(
                {
                    'resource_access': { fakeapp: { roles: ['role3'] } }
                });
            const result = authGuard.hasRealmRolesForClientRole('fakeapp', ['role1', 'role2']);
            expect(result).toBeFalsy();
        });

        it('Should be false if the resource_access does not contain the client role related to the app', () => {
            spyOn(jwtHelperService, 'getAccessToken').and.returnValue('my-access_token');
            spyOn(jwtHelperService, 'decodeToken').and.returnValue(
                {
                    'resource_access': { anotherfakeapp: { roles: ['role1'] } }
                });
            const result = authGuard.hasRealmRolesForClientRole('fakeapp', ['role1', 'role2']);
            expect(result).toBeFalsy();
        });

    });

});