/*!
 * @license
 * Copyright 2016 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, ComponentFixture, TestBed } from '@angular/core/testing';
import { LogServiceMock } from 'ng2-alfresco-core';
import { CoreModule, LogService } from 'ng2-alfresco-core';
import { ActivitiAlfrescoContentService } from '../../../services/activiti-alfresco.service';
import { WidgetVisibilityService } from '../../../services/widget-visibility.service';
import { EcmModelService } from './../../../services/ecm-model.service';
import { FormService } from './../../../services/form.service';
import { FormFieldModel, FormFieldTypes, FormModel } from './../core/index';
import { DynamicTableWidgetComponent } from './dynamic-table.widget';
import { DynamicTableColumn, DynamicTableModel, DynamicTableRow } from './dynamic-table.widget.model';
import { BooleanEditorComponent } from './editors/boolean/boolean.editor';
import { DateEditorComponent } from './editors/date/date.editor';
import { DropdownEditorComponent } from './editors/dropdown/dropdown.editor';
import { RowEditorComponent } from './editors/row.editor';
import { TextEditorComponent } from './editors/text/text.editor';

let fakeFormField = {
    id: 'fake-dynamic-table',
    name: 'fake-label',
    value: [{1: 1, 2: 2, 3: 4}],
    required: false,
    readOnly: false,
    overrideId: false,
    colspan: 1,
    placeholder: null,
    minLength: 0,
    maxLength: 0,
    params: {
        existingColspan: 1,
        maxColspan: 1
    },
    sizeX: 2,
    sizeY: 2,
    row: -1,
    col: -1,
    columnDefinitions: [
        {
            id: 1,
            name: 1,
            type: 'String',
            visible: true
        },
        {
            id: 2,
            name: 2,
            type: 'String',
            visible: true
        },
        {
            id: 3,
            name: 3,
            type: 'String',
            visible: true
        }
    ]
};

describe('DynamicTableWidgetComponent', () => {

    let widget: DynamicTableWidgetComponent;
    let fixture: ComponentFixture<DynamicTableWidgetComponent>;
    let element: HTMLElement;
    let table: DynamicTableModel;
    let logService: LogService;
    let componentHandler: any;

    beforeEach(async(() => {
        TestBed.configureTestingModule({
            imports: [
                CoreModule.forRoot()
            ],
            declarations: [DynamicTableWidgetComponent, RowEditorComponent,
                DropdownEditorComponent, DateEditorComponent, BooleanEditorComponent, TextEditorComponent],
            providers: [
                FormService,
                {provide: LogService, useClass: LogServiceMock},
                ActivitiAlfrescoContentService,
                EcmModelService,
                WidgetVisibilityService
            ]
        }).compileComponents();
    }));

    beforeEach(() => {
        const field = new FormFieldModel(new FormModel());
        logService = TestBed.get(LogService);
        table = new DynamicTableModel(field);
        let changeDetectorSpy = jasmine.createSpyObj('cd', ['detectChanges']);
        let nativeElementSpy = jasmine.createSpyObj('nativeElement', ['querySelector']);
        changeDetectorSpy.nativeElement = nativeElementSpy;
        let elementRefSpy = jasmine.createSpyObj('elementRef', ['']);
        elementRefSpy.nativeElement = nativeElementSpy;

        fixture = TestBed.createComponent(DynamicTableWidgetComponent);
        element = fixture.nativeElement;
        widget = fixture.componentInstance;
        widget.content = table;

    });

    it('should select row on click', () => {
        let row = <DynamicTableRow> {selected: false};
        widget.onRowClicked(row);

        expect(row.selected).toBeTruthy();
        expect(widget.content.selectedRow).toBe(row);
    });

    it('should requre table to select clicked row', () => {
        let row = <DynamicTableRow> {selected: false};
        widget.content = null;
        widget.onRowClicked(row);

        expect(row.selected).toBeFalsy();
    });

    it('should reset selected row', () => {
        let row = <DynamicTableRow> {selected: false};
        widget.content.rows.push(row);
        widget.content.selectedRow = row;
        expect(widget.content.selectedRow).toBe(row);
        expect(row.selected).toBeTruthy();

        widget.onRowClicked(null);
        expect(widget.content.selectedRow).toBeNull();
        expect(row.selected).toBeFalsy();
    });

    it('should check selection', () => {
        let row = <DynamicTableRow> {selected: false};
        widget.content.rows.push(row);
        widget.content.selectedRow = row;
        expect(widget.hasSelection()).toBeTruthy();

        widget.content.selectedRow = null;
        expect(widget.hasSelection()).toBeFalsy();

        widget.content = null;
        expect(widget.hasSelection()).toBeFalsy();
    });

    it('should require table to move selection up', () => {
        widget.content = null;
        expect(widget.moveSelectionUp()).toBeFalsy();
    });

    it('should move selection up', () => {
        let row1 = <DynamicTableRow> {};
        let row2 = <DynamicTableRow> {};
        widget.content.rows.push(...[row1, row2]);
        widget.content.selectedRow = row2;

        expect(widget.moveSelectionUp()).toBeTruthy();
        expect(widget.content.rows.indexOf(row2)).toBe(0);
    });

    it('should require table to move selection down', () => {
        widget.content = null;
        expect(widget.moveSelectionDown()).toBeFalsy();
    });

    it('should move selection down', () => {
        let row1 = <DynamicTableRow> {};
        let row2 = <DynamicTableRow> {};
        widget.content.rows.push(...[row1, row2]);
        widget.content.selectedRow = row1;

        expect(widget.moveSelectionDown()).toBeTruthy();
        expect(widget.content.rows.indexOf(row1)).toBe(1);
    });

    it('should require table to delete selection', () => {
        widget.content = null;
        expect(widget.deleteSelection()).toBeFalsy();
    });

    it('should delete selected row', () => {
        let row = <DynamicTableRow> {};
        widget.content.rows.push(row);
        widget.content.selectedRow = row;
        widget.deleteSelection();
        expect(widget.content.rows.length).toBe(0);
    });

    it('should require table to add new row', () => {
        widget.content = null;
        expect(widget.addNewRow()).toBeFalsy();
    });

    it('should start editing new row', () => {
        expect(widget.editMode).toBeFalsy();
        expect(widget.editRow).toBeNull();

        expect(widget.addNewRow()).toBeTruthy();
        expect(widget.editRow).not.toBeNull();
        expect(widget.editMode).toBeTruthy();
    });

    it('should require table to edit selected row', () => {
        widget.content = null;
        expect(widget.editSelection()).toBeFalsy();
    });

    it('should start editing selected row', () => {
        expect(widget.editMode).toBeFalsy();
        expect(widget.editRow).toBeFalsy();

        let row = <DynamicTableRow> {value: true};
        widget.content.selectedRow = row;

        expect(widget.editSelection()).toBeTruthy();
        expect(widget.editMode).toBeTruthy();
        expect(widget.editRow).not.toBeNull();
        expect(widget.editRow.value).toEqual(row.value);
    });

    it('should copy row', () => {
        let row = <DynamicTableRow> {value: {opt: {key: '1', value: 1}}};
        let copy = widget.copyRow(row);
        expect(copy.value).toEqual(row.value);
    });

    it('should require table to retrieve cell value', () => {
        widget.content = null;
        expect(widget.getCellValue(null, null)).toBeNull();
    });

    it('should retrieve cell value', () => {
        const value = '<value>';
        let row = <DynamicTableRow> {value: {key: value}};
        let column = <DynamicTableColumn> {id: 'key'};

        expect(widget.getCellValue(row, column)).toBe(value);
    });

    it('should save changes and add new row', () => {
        let row = <DynamicTableRow> {isNew: true, value: {key: 'value'}};
        widget.editMode = true;
        widget.editRow = row;

        widget.onSaveChanges();

        expect(row.isNew).toBeFalsy();
        expect(widget.content.selectedRow).toBeNull();
        expect(widget.content.rows.length).toBe(1);
        expect(widget.content.rows[0].value).toEqual(row.value);
    });

    it('should save changes and update row', () => {
        let row = <DynamicTableRow> {isNew: false, value: {key: 'value'}};
        widget.editMode = true;
        widget.editRow = row;
        widget.content.selectedRow = row;

        widget.onSaveChanges();
        expect(widget.content.selectedRow.value).toEqual(row.value);
    });

    it('should require table to save changes', () => {
        spyOn(logService, 'error').and.stub();
        widget.editMode = true;
        widget.content = null;
        widget.onSaveChanges();

        expect(widget.editMode).toBeFalsy();
        expect(logService.error).toHaveBeenCalledWith(widget.ERROR_MODEL_NOT_FOUND);
    });

    it('should cancel changes', () => {
        widget.editMode = true;
        widget.editRow = <DynamicTableRow> {};
        widget.onCancelChanges();

        expect(widget.editMode).toBeFalsy();
        expect(widget.editRow).toBeNull();
    });

    it('should be valid by default', () => {
        widget.content.field = null;
        expect(widget.isValid()).toBeTruthy();

        widget.content = null;
        expect(widget.isValid()).toBeTruthy();
    });

    it('should take validation state from underlying field', () => {
        let form = new FormModel();
        let field = new FormFieldModel(form, {
            type: FormFieldTypes.DYNAMIC_TABLE,
            required: true,
            value: null
        });
        widget.content = new DynamicTableModel(field);

        expect(widget.content.field.validate()).toBeFalsy();
        expect(widget.isValid()).toBe(widget.content.field.isValid);
        expect(widget.content.field.isValid).toBeFalsy();

        widget.content.field.value = [{}];

        expect(widget.content.field.validate()).toBeTruthy();
        expect(widget.isValid()).toBe(widget.content.field.isValid);
        expect(widget.content.field.isValid).toBeTruthy();

    });

    it('should prepend default currency for amount columns', () => {
        let row = <DynamicTableRow> {value: {key: '100'}};
        let column = <DynamicTableColumn> {id: 'key', type: 'Amount'};
        let actual = widget.getCellValue(row, column);
        expect(actual).toBe('$ 100');
    });

    it('should prepend custom currency for amount columns', () => {
        let row = <DynamicTableRow> {value: {key: '100'}};
        let column = <DynamicTableColumn> {id: 'key', type: 'Amount', amountCurrency: 'GBP'};
        let actual = widget.getCellValue(row, column);
        expect(actual).toBe('GBP 100');
    });

    describe('when template is ready', () => {

        beforeEach(async(() => {
            componentHandler = jasmine.createSpyObj('componentHandler', ['upgradeAllRegistered', 'upgradeElement']);
            window['componentHandler'] = componentHandler;
        }));

        beforeEach(() => {
            widget.field = new FormFieldModel(new FormModel({taskId: 'fake-task-id'}), fakeFormField);
            widget.field.type = FormFieldTypes.DYNAMIC_TABLE;

            fixture.detectChanges();
        });

        afterEach(() => {
            fixture.destroy();
            TestBed.resetTestingModule();
        });

        it('should select a row when press space bar', async(() => {
            let rowElement = element.querySelector('#fake-dynamic-table-row-0');

            expect(element.querySelector('#dynamic-table-fake-dynamic-table')).not.toBeNull();
            expect(rowElement).not.toBeNull();
            expect(rowElement.className).toBeFalsy();

            let event: any = new Event('keyup');
            event.keyCode = 32;
            rowElement.dispatchEvent(event);
            fixture.detectChanges();

            fixture.whenStable().then(() => {
                let selectedRow = element.querySelector('#fake-dynamic-table-row-0');
                expect(selectedRow.className).toBe('dynamic-table-widget__row-selected');
            });
        }));

        it('should focus on add button when a new row is saved', async(() => {
            let addNewRowButton: HTMLButtonElement = <HTMLButtonElement> element.querySelector('#fake-dynamic-table-add-row');

            expect(element.querySelector('#dynamic-table-fake-dynamic-table')).not.toBeNull();
            expect(addNewRowButton).not.toBeNull();

            widget.addNewRow();
            widget.onSaveChanges();
            fixture.detectChanges();

            fixture.whenStable().then(() => {
                expect(document.activeElement.id).toBe('fake-dynamic-table-add-row');
            });
        }));
    });
});