import { ComponentFixture, TestBed } from '@angular/core/testing';
import { Component, Input, Attribute } from '@angular/core';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { AccordionModule } from 'ngx-bootstrap';
import { DatatableComponent } from './datatable.component';
import { Dataset } from '../../../metamodel/model';
import { ATTRIBUTE_LIST, DATASET_LIST } from '../../../../settings/test-data';

describe('[Search][Result] Component: DatatableComponent', () => {
    @Component({ selector: 'app-img', template: '' })
    class ImgStubComponent {
        @Input() src: string;
    }

    @Component({ selector: 'app-thumbnail', template: '' })
    class ThumbnailStubComponent {
        @Input() src: string;
        @Input() attributeName: string;
    }

    @Component({ selector: 'app-link', template: '' })
    class LinkStubComponent {
        @Input() href: string;
    }

    @Component({ selector: 'app-btn', template: '' })
    class BtnStubComponent {
        @Input() href: string;
    }

    @Component({ selector: 'app-detail', template: '' })
    class DetailStubComponent {
        @Input() style: string;
        @Input() datasetName: string;
        @Input() data: string | number;
    }

    @Component({ selector: 'app-download', template: '' })
    class DownloadStubComponent {
        @Input() href: string;
    }

    @Component({ selector: 'app-json-renderer', template: '' })
    class JsonStubComponent {
        @Input() attributeName: string;
        @Input() json: string;
    }

    @Component({ selector: 'pagination', template: '' })
    class PaginationStubComponent {
        @Input() totalItems: number;
        @Input() boundaryLinks: boolean;
        @Input() rotate: boolean;
        @Input() maxSize: number;
    }

    let component: DatatableComponent;
    let fixture: ComponentFixture<DatatableComponent>;

    beforeEach(() => {
        TestBed.configureTestingModule({
            declarations: [
                DatatableComponent,
                ImgStubComponent,
                ThumbnailStubComponent,
                LinkStubComponent,
                BtnStubComponent,
                DetailStubComponent,
                DownloadStubComponent,
                JsonStubComponent,
                PaginationStubComponent
            ],
            imports: [AccordionModule.forRoot(), BrowserAnimationsModule]
        });
        fixture = TestBed.createComponent(DatatableComponent);
        component = fixture.componentInstance;
    });

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

    it('#getOutputList() should return filtered output list', () => {
        component.outputList = [2]
        component.datasetAttributeList = ATTRIBUTE_LIST;
        const outputList = component.getOutputList();
        expect(outputList.length).toBe(1);
    });

    it('#getDataset() should return dataset object', () => {
        component.datasetList = DATASET_LIST;
        component.datasetName = 'cat_1';
        const dataset: Dataset = component.getDataset();
        expect(dataset.name).toBe('cat_1');
        expect(dataset.label).toBe('Cat 1');
    });

    it('#getAttributeId(attributeName) should return id of attributeName', () => {
        component.datasetAttributeList = ATTRIBUTE_LIST;
        expect(component.getAttributeId('name_one')).toBe(1);
    });

    it('#getAttributeRenderer(attributeName) should return renderer type of attributeName', () => {
        component.datasetAttributeList = ATTRIBUTE_LIST;
        expect(component.getAttributeRenderer('name_one')).toBe('btn');
    });

    it('#getAttributeUriAction(attributeName, datum) should return uri action of attributeName', () => {
        component.datasetAttributeList = ATTRIBUTE_LIST;
        expect(component.getAttributeUriAction('name_one', 'test')).toBe('test');
        expect(component.getAttributeUriAction('name_two', 'test')).toBe('http://test.com/test');
    });

    it('#toggleSelection(datum) should return add datum to selectedData', () => {
        const datum = { label_one: 123456 };
        component.datasetAttributeList = ATTRIBUTE_LIST;
        component.selectedData = [];
        component.addSelectedData.subscribe((event: any) => expect(event).toBe(123456));
        component.toggleSelection(datum);
    });

    it('#toggleSelection(datum) should return remove datum to selectedData', () => {
        const datum = { label_one: 123456 };
        component.selectedData = [123456];
        component.datasetAttributeList = ATTRIBUTE_LIST;
        component.deleteSelectedData.subscribe((event: any) => expect(event).toBe(123456));
        component.toggleSelection(datum);
    });

    it('#isSelected(datum) should return true datum is selected', () => {
        const datum = { label_one: 123456 };
        component.datasetAttributeList = ATTRIBUTE_LIST;
        component.selectedData = [123456];
        expect(component.isSelected(datum)).toBeTruthy();
    });

    it('#isSelected(datum) should return false datum is not selected', () => {
        const datum = { label_one: 123456 };
        component.datasetAttributeList = ATTRIBUTE_LIST;
        component.selectedData = [];
        expect(component.isSelected(datum)).toBeFalsy();
    });

    it('#noSelectedData() should return true if no selectedData', () => {
        component.selectedData = [];
        expect(component.noSelectedData()).toBeTruthy();
    });

    it('#noSelectedData() should return false if there are selectedData', () => {
        component.selectedData = [123456];
        expect(component.noSelectedData()).toBeFalsy();
    });

    it('#emitProcess() should raise executeProcess event and transmit process type', () => {
        component.executeProcess.subscribe((event: string) => expect(event).toBe('test'));
        component.emitProcess('test');
    });

    it('#changePage() should change page value and raise getSearchData event', () => {
        component.sortedCol = 1;
        component.sortedOrder = 'a';
        component.getSearchData.subscribe((event: [number, number, number, string]) => expect(event).toEqual([2, 10, 1, 'a']));
        component.changePage(2);
    });

    it('#changeNbItems() should change nbItems value and raise getSearchData event', () => {
        component.sortedCol = 1;
        component.sortedOrder = 'a';
        component.getSearchData.subscribe((event: [number, number, number, string]) => expect(event).toEqual([1, 20, 1, 'a']));
        component.changeNbItems(20);
    });
    
    it('#ngOnInit() should init sortedCol and sortedOrder values', () => {
        component.datasetAttributeList = ATTRIBUTE_LIST;
        component.ngOnInit();
        expect(component.sortedCol).toEqual(1);
        expect(component.sortedOrder).toBe('a');
    });

    it('#sort() should raise getSearchData event with correct parameters', () => {
        component.sortedOrder = 'a';
        let subscribtion = component.getSearchData.subscribe((event: [number, number, number, string]) => expect(event).toEqual([1, 10, 1, 'a']));
        component.sort(1);
        subscribtion.unsubscribe();
        component.sortedCol = 1;
        component.sortedOrder = 'a';
        subscribtion = component.getSearchData.subscribe((event: [number, number, number, string]) => expect(event).toEqual([1, 10, 1, 'd']));
        component.sort(1);
        subscribtion.unsubscribe();
        component.sortedCol = 1;
        component.sortedOrder = 'd';
        subscribtion = component.getSearchData.subscribe((event: [number, number, number, string]) => expect(event).toEqual([1, 10, 1, 'a']));
        component.sort(1);
    });
});