/**
 * This file is part of Anis Client.
 *
 * @copyright Laboratoire d'Astrophysique de Marseille / CNRS
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

import { ComponentFixture, TestBed } from '@angular/core/testing';

import { FormSampleComponent } from './form-sample.component';
import { FormsModule, NgForm } from '@angular/forms';
import { ToastrModule } from 'ngx-toastr';

import { Router } from '@angular/router';
import { SearchService } from 'src/app/instance/store/services/search.service';
import { ToastrService } from 'ngx-toastr';
import { Observable, of } from 'rxjs';

class MockRouter {
    navigate(url: string): string {
        return url;
    }
}

class MockSearch {
    retrieveDataLength(query: string): Observable<[{ nb: number }]> {
        return null;
    }
}

class MockToastr {
    error(): void {}
}

describe('FormSampleComponent', () => {
    let component: FormSampleComponent;
    let fixture: ComponentFixture<FormSampleComponent>;

    beforeEach(async () => {
        await TestBed.configureTestingModule({
            declarations: [FormSampleComponent],
            imports: [FormsModule, ToastrModule],
            providers: [
                { provide: Router, useClass: MockRouter },
                { provide: ToastrService, useClass: MockToastr },
                { provide: SearchService, useClass: MockSearch },
            ],
        }).compileComponents();

        fixture = TestBed.createComponent(FormSampleComponent);
        component = fixture.componentInstance;
    });

    afterEach(() => {
        jest.resetAllMocks();
    });

    it('should create', () => {
        expect(component).toBeTruthy();
    });

    it('should call error if no ids found with the query', () => {
        const spyOnError = jest.spyOn(MockToastr.prototype, 'error');
        const spyOnNavigate = jest.spyOn(MockRouter.prototype, 'navigate');
        const spyOnSearch = jest
            .spyOn(MockSearch.prototype, 'retrieveDataLength')
            .mockReturnValue(of([{ nb: 0 }]));

        component.datasetName = 'observations';
        component.instanceName = 'default';
        let form = { value: { inputVal: 43 } } as NgForm;
        component.submit(form);

        expect(spyOnSearch).toHaveBeenCalledTimes(1);
        expect(spyOnSearch).toHaveBeenCalledWith(
            'observations?a=count&c=1::eq::43'
        );
        expect(spyOnError).toHaveBeenCalledTimes(1);
        expect(spyOnNavigate).toHaveBeenCalledTimes(0);
    });

    it('should call error if no ids found with the query', () => {
        const spyOnError = jest.spyOn(MockToastr.prototype, 'error');
        const spyOnNavigate = jest.spyOn(MockRouter.prototype, 'navigate');
        const spyOnSearch = jest
            .spyOn(MockSearch.prototype, 'retrieveDataLength')
            .mockReturnValue(of([{ nb: 1 }]));

        component.datasetName = 'observations';
        component.instanceName = 'default';
        let form = { value: { inputVal: 250 } } as NgForm;
        component.submit(form);

        expect(spyOnSearch).toHaveBeenCalledTimes(1);
        expect(spyOnSearch).toHaveBeenCalledWith(
            'observations?a=count&c=1::eq::250'
        );
        expect(spyOnError).toHaveBeenCalledTimes(0);
        expect(spyOnNavigate).toHaveBeenCalledTimes(1);
        expect(spyOnNavigate).toHaveBeenCalledWith(
            ['/instance/default/search/detail/observations/250']
        );
    });
});