/**
 * timer.component.spec
 */

import { EventEmitter } from '@angular/core';
import {
    async,
    ComponentFixture,
    fakeAsync,
    flush,
    TestBed
} from '@angular/core/testing';
import { pDateTimeIntl } from './date-time-picker-intl.service';
import { Component, DebugElement, NgZone } from '@angular/core';
import { pNativeDateTimeModule } from './adapter/native-date-time.module';
import { pDateTimeModule } from './date-time.module';
import { By } from '@angular/platform-browser';
import { pTimerComponent } from './timer.component';

const JAN = 0,
    FEB = 1,
    MAR = 2,
    APR = 3,
    MAY = 4,
    JUN = 5,
    JUL = 6,
    AUG = 7,
    SEP = 8,
    OCT = 9,
    NOV = 10,
    DEC = 11;

class MockNgZone extends NgZone {
    onStable: EventEmitter<any> = new EventEmitter(false);
    constructor() {
        super({ enableLongStackTrace: false });
    }
    run(fn: Function): any {
        return fn();
    }
    runOutsideAngular(fn: Function): any {
        return fn();
    }
    simulateZoneExit(): void {
        this.onStable.emit(null);
    }
}

describe('pTimerComponent', () => {
    let zone: MockNgZone;

    beforeEach(async(() => {
        TestBed.configureTestingModule({
            imports: [pNativeDateTimeModule, pDateTimeModule],
            declarations: [StandardTimer],
            providers: [
                pDateTimeIntl,
                { provide: NgZone, useFactory: () => (zone = new MockNgZone()) }
            ]
        }).compileComponents();
    }));

    describe('standard timer', () => {
        let fixture: ComponentFixture<StandardTimer>;
        let testComponent: StandardTimer;
        let timerDebugElement: DebugElement;
        let timerElement: HTMLElement;
        let timerInstance: pTimerComponent<Date>;

        beforeEach(() => {
            fixture = TestBed.createComponent(StandardTimer);
            fixture.detectChanges();

            timerDebugElement = fixture.debugElement.query(
                By.directive(pTimerComponent)
            );
            timerElement = timerDebugElement.nativeElement;
            testComponent = fixture.componentInstance;
            timerInstance = timerDebugElement.componentInstance;
        });

        it('should have two timer boxes if showSecondsTimer set to false', () => {
            let timerBoxes = timerElement.querySelectorAll(
                'p-date-time-timer-box'
            );
            expect(timerInstance.showSecondsTimer).toBeFalsy();
            expect(timerBoxes.length).toBe(2);
        });

        it('should have three timer boxes if showSecondsTimer set to true', () => {
            testComponent.showSecondsTimer = true;
            fixture.detectChanges();

            let timerBoxes = timerElement.querySelectorAll(
                'p-date-time-timer-box'
            );
            expect(timerInstance.showSecondsTimer).toBeTruthy();
            expect(timerBoxes.length).toBe(3);
        });

        it('should NOT have the hour12 toggle button if hour12Timer set to false', () => {
            let toggleBtn = timerElement.querySelector(
                'button.p-dt-timer-hour12-box'
            );
            expect(timerInstance.hour12Timer).toBeFalsy();
            expect(toggleBtn).toBeFalsy();
        });

        it('should have the hour12 toggle button if hour12Timer set to true', () => {
            testComponent.hour12Timer = true;
            fixture.detectChanges();

            let toggleBtn = timerElement.querySelector(
                'button.p-dt-timer-hour12-box'
            );
            expect(timerInstance.hour12Timer).toBeTruthy();
            expect(toggleBtn).toBeTruthy();
        });

        it('should dispatch an event when a timer arrow button clicked', fakeAsync(() => {
            spyOn(testComponent, 'handleSelectedChange');
            expect(testComponent.handleSelectedChange).not.toHaveBeenCalled();

            testComponent.showSecondsTimer = true;
            fixture.detectChanges();

            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(6);

            for (let i = 0; i < arrowBtns.length; i++) {
                arrowBtns[i].click();
                fixture.detectChanges();
                flush();
            }

            expect(testComponent.handleSelectedChange).toHaveBeenCalledTimes(6);
        }));

        it('should dispatch an event when hour12 toggle button clicked', fakeAsync(() => {
            spyOn(testComponent, 'handleSelectedChange');
            expect(testComponent.handleSelectedChange).not.toHaveBeenCalled();

            testComponent.hour12Timer = true;
            fixture.detectChanges();

            let toggleBtn = timerElement.querySelector<HTMLButtonElement>(
                'button.p-dt-timer-hour12-box'
            );

            toggleBtn.click();
            fixture.detectChanges();
            flush();

            expect(testComponent.handleSelectedChange).toHaveBeenCalledTimes(1);
        }));

        it('should add or minus stepHour hours when hour arrow button clicked', fakeAsync(() => {
            expect(timerInstance.stepHour).toBe(1);

            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(4);

            arrowBtns[0].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 13, 30, 30)
            );

            arrowBtns[1].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );

            testComponent.stepHour = 2;
            fixture.detectChanges();
            expect(timerInstance.stepHour).toBe(2);

            arrowBtns[0].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 14, 30, 30)
            );

            arrowBtns[1].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );
        }));

        it('should add or minus stepMinute minutes when minute arrow button clicked', fakeAsync(() => {
            expect(timerInstance.stepMinute).toBe(1);

            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(4);

            arrowBtns[2].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 31, 30)
            );

            arrowBtns[3].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );

            testComponent.stepMinute = 2;
            fixture.detectChanges();
            expect(timerInstance.stepMinute).toBe(2);

            arrowBtns[2].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 32, 30)
            );

            arrowBtns[3].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );
        }));

        it('should add or minus stepSecond seconds when second arrow button clicked', fakeAsync(() => {
            expect(timerInstance.stepSecond).toBe(1);

            testComponent.showSecondsTimer = true;
            fixture.detectChanges();
            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(6);

            arrowBtns[4].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 31)
            );

            arrowBtns[5].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );

            testComponent.stepSecond = 2;
            fixture.detectChanges();
            expect(timerInstance.stepSecond).toBe(2);

            arrowBtns[4].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 32)
            );

            arrowBtns[5].click();
            fixture.detectChanges();
            flush();
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 12, 30, 30)
            );
        }));

        it('should toggle between PM and AM when hour12 toggle button clicked', fakeAsync(() => {
            testComponent.hour12Timer = true;
            fixture.detectChanges();

            let toggleBtn = timerElement.querySelector<HTMLButtonElement>(
                'button.p-dt-timer-hour12-box'
            );
            expect(toggleBtn.innerHTML).toContain('PM');

            toggleBtn.click();
            fixture.detectChanges();
            flush();

            expect(toggleBtn.innerHTML).toContain('AM');
            expect(testComponent.pickerMoment).toEqual(
                new Date(2018, JAN, 31, 0, 30, 30)
            );
        }));

        it('should disable all down arrow button if pickerMoment equals to minDateTime', () => {
            testComponent.showSecondsTimer = true;
            fixture.detectChanges();
            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(6);

            testComponent.pickerMoment = new Date(testComponent.minDateTime);
            fixture.detectChanges();

            // up arrow buttons
            expect(arrowBtns[0].hasAttribute('disabled')).toBe(false);
            expect(arrowBtns[2].hasAttribute('disabled')).toBe(false);
            expect(arrowBtns[4].hasAttribute('disabled')).toBe(false);

            // down arrow buttons
            expect(arrowBtns[1].hasAttribute('disabled')).toBe(true);
            expect(arrowBtns[3].hasAttribute('disabled')).toBe(true);
            expect(arrowBtns[5].hasAttribute('disabled')).toBe(true);
        });

        it('should disable all up arrow button if pickerMoment equals to maxDateTime', () => {
            testComponent.showSecondsTimer = true;
            fixture.detectChanges();
            let arrowBtns = timerElement.querySelectorAll<HTMLButtonElement>(
                'button.p-dt-control-arrow-button'
            );
            expect(arrowBtns.length).toBe(6);

            testComponent.pickerMoment = new Date(testComponent.maxDateTime);
            fixture.detectChanges();

            // up arrow buttons
            expect(arrowBtns[0].hasAttribute('disabled')).toBe(true);
            expect(arrowBtns[2].hasAttribute('disabled')).toBe(true);
            expect(arrowBtns[4].hasAttribute('disabled')).toBe(true);

            // down arrow buttons
            expect(arrowBtns[1].hasAttribute('disabled')).toBe(false);
            expect(arrowBtns[3].hasAttribute('disabled')).toBe(false);
            expect(arrowBtns[5].hasAttribute('disabled')).toBe(false);
        });
    });
});

@Component({
    template: `
        <p-date-time-timer
                [hour12Timer]="hour12Timer"
                [showSecondsTimer]="showSecondsTimer"
                [pickerMoment]="pickerMoment"
                [stepHour]="stepHour"
                [stepMinute]="stepMinute"
                [stepSecond]="stepSecond"
                [minDateTime]="minDateTime"
                [maxDateTime]="maxDateTime"
                (selectedChange)="handleSelectedChange($event)"></p-date-time-timer>
    `
})
class StandardTimer {
    stepHour = 1;
    stepMinute = 1;
    stepSecond = 1;
    hour12Timer = false;
    showSecondsTimer = false;
    pickerMoment = new Date(2018, JAN, 31, 12, 30, 30);
    minDateTime = new Date(2018, JAN, 29, 12, 30, 30);
    maxDateTime = new Date(2018, FEB, 1, 12, 30, 30);

    handleSelectedChange(val: Date) {
        this.pickerMoment = val;
    }
}