import React from 'react';
import { mount } from 'enzyme';
import chai, { expect } from 'chai';
import chaiEnzyme from 'chai-enzyme';

// `this.wrapper` and `this.dom` is set in the helpers file
import {
	mountComponent,
	unmountComponent,
} from '../../../tests/enzyme-helpers';

// sample props and children
import {
	dropdownCollection,
	propSets,
} from '../../../utilities/sample-data/global-navigation-bar';

import IconSettings from '../../icon-settings';
import GlobalNavigationBar from '../../global-navigation-bar';
import GlobalNavigationBarRegion from '../../global-navigation-bar/region';
import GlobalNavigationBarDropdown from '../../global-navigation-bar/dropdown';
import GlobalNavigationBarLink from '../../global-navigation-bar/link';
import GlobalNavigationBarLabel from '../../global-navigation-bar/label';
import GlobalNavigationBarButton from '../../global-navigation-bar/button';

chai.use(chaiEnzyme());

const COMPONENT_CSS_CLASSES = {
	base: 'slds-context-bar',
	themePrefix: 'slds-context-bar_theme-',
};

const REGION_CSS_CLASSES = {
	primary: 'slds-context-bar__primary',
	secondary: 'slds-context-bar__secondary',
	tertiary: 'slds-context-bar__tertiary',
	appName: 'slds-context-bar__app-name',
};

describe('Global Navigation Bar: ', () => {
	// Base defaults
	// no required props

	/*
		Tests
	 */
	describe('Default Structure', () => {
		beforeEach(
			mountComponent(
				<IconSettings iconPath="/assets/icons">
					<GlobalNavigationBar>
						<GlobalNavigationBarRegion region="primary" />
					</GlobalNavigationBar>
				</IconSettings>
			)
		);

		afterEach(unmountComponent);

		it('has wrapping div and one primary region', function() {
			expect(
				this.wrapper.find(`.${COMPONENT_CSS_CLASSES.base}`)
			).to.be.present();
			expect(
				this.wrapper.find(`.${REGION_CSS_CLASSES.primary}`)
			).to.be.present();
		});

		it('Primary region DOES not have divider on right', function() {
			const primary = this.wrapper.find(`.${REGION_CSS_CLASSES.primary}`);
			expect(primary).to.not.have.className(
				'slds-context-bar__item_divider-right'
			);
		});
	});

	describe('Optional Properties', () => {
		const customCloudProps = propSets.customCloud.props;
		const customThemeProps = propSets.lightTheme.props;

		beforeEach(
			mountComponent(
				<IconSettings iconPath="/assets/icons">
					<GlobalNavigationBar {...customCloudProps} {...customThemeProps} />
				</IconSettings>
			)
		);

		afterEach(unmountComponent);

		it('has custom cloud and theme CSS', function() {
			const component = this.wrapper.find(`.${COMPONENT_CSS_CLASSES.base}`);
			expect(component).to.have.className(
				`${COMPONENT_CSS_CLASSES.themePrefix}${customCloudProps.cloud}`
			);
			expect(component).to.have.className(
				`${COMPONENT_CSS_CLASSES.themePrefix}${customThemeProps.theme}`
			);
		});
	});

	describe('Optional Region Structure', () => {
		const props = propSets.base.props;

		const buttonClicked = () => {};
		const linkClicked = () => {};
		const dropdownItemClicked = () => {};

		beforeEach(
			mountComponent(
				<IconSettings iconPath="/assets/icons">
					<GlobalNavigationBar {...props}>
						<GlobalNavigationBarRegion region="primary" />
						<GlobalNavigationBarRegion
							region="secondary"
							navigation
							dividerPosition="right"
						>
							<GlobalNavigationBarLink
								label="Home"
								id="home-link"
								onClick={linkClicked('Home link clicked')}
							/>
							<GlobalNavigationBarDropdown
								assistiveText={{ icon: 'Open Menu' }}
								id="primaryDropdown"
								label="Global Navigation Menu Item 1"
								onSelect={dropdownItemClicked('Dropdown Menu Item clicked')}
								options={dropdownCollection}
							/>
							<GlobalNavigationBarLink
								active
								id="menu-item-2"
								label="Global Navigation Menu Item 2"
								onClick={linkClicked('Link clicked')}
							/>
							<GlobalNavigationBarDropdown
								active
								assistiveText={{ icon: 'Open Menu' }}
								id="primaryDropdownActive"
								label="Global Navigation Menu Item 3"
								onSelect={dropdownItemClicked('Dropdown Menu Item clicked')}
								options={dropdownCollection}
							/>
						</GlobalNavigationBarRegion>
						<GlobalNavigationBarRegion region="tertiary">
							<GlobalNavigationBarLink
								label="Actions"
								onClick={linkClicked('Link clicked')}
							/>
							<GlobalNavigationBarButton
								active
								label="Button"
								id="global-nav__button"
								onClick={buttonClicked('Button clicked')}
							/>
							<GlobalNavigationBarLabel
								dividerPosition="left"
								label="Vandelay Enterprises"
							/>
						</GlobalNavigationBarRegion>
					</GlobalNavigationBar>
				</IconSettings>
			)
		);

		afterEach(unmountComponent);

		it('has 1 primary, 1 secondary, and 1 tertiary region', function() {
			expect(
				this.wrapper.find(`.${REGION_CSS_CLASSES.primary}`)
			).to.be.present();
			expect(
				this.wrapper.find(`.${REGION_CSS_CLASSES.secondary}`)
			).to.be.present();
			expect(
				this.wrapper.find(`.${REGION_CSS_CLASSES.tertiary}`)
			).to.be.present();
		});

		it('Primary region has divider on right due to secondary region', function() {
			expect(
				this.wrapper.find(`.${REGION_CSS_CLASSES.primary}`)
			).to.have.className('slds-context-bar__item_divider-right');
		});

		it('Secondary region application is a nav HTML element and has divider on right side', function() {
			const nav = this.wrapper.find(`.${REGION_CSS_CLASSES.secondary}`);
			expect(nav.type()).to.equal('nav');
			expect(nav).to.have.className('slds-context-bar__item_divider-right');
		});

		it('displays active items as active', function() {
			const activeItems = this.wrapper.find('.slds-is-active');
			expect(activeItems).to.have.length(3);
		});
	});

	describe('Secondary Region', () => {
		beforeEach(
			mountComponent(
				<IconSettings iconPath="/assets/icons">
					<GlobalNavigationBarRegion region="secondary" />
				</IconSettings>
			)
		);

		afterEach(unmountComponent);

		it('Secondary region application is div and not a nav', function() {
			const nav = this.wrapper.find(`.${REGION_CSS_CLASSES.secondary}`);
			expect(nav.type()).to.equal('div');
		});
	});

	// TODO still need Dropdown covered. Should be added to Dropdown tests, once special context bar dropdown features are merged into Dropdown

	describe('GlobalNavigationLink child component', () => {
		let linkClicked;
		let link;

		beforeEach(function() {
			linkClicked = sinon.spy();
			const instance = (
				<GlobalNavigationBarLink
					href="http://google.com"
					label="Home"
					id="home-link"
					onClick={linkClicked('Home link clicked')}
				/>
			);
			this.wrapper = mount(instance, {
				attachTo: document.body.appendChild(document.createElement('div')),
			});
			link = this.wrapper.find('li#home-link');
		});

		afterEach(function() {
			this.wrapper.unmount();
		});

		it('GlobalNavigationBarLink has attributes and onClick runs callback', function() {
			expect(link.text()).to.equal('Home');
			link.simulate('click');
			expect(linkClicked.calledOnce).to.be.true;
		});

		it('renders href if passed', () => {
			expect(link.find('a')).to.have.attr('href', 'http://google.com');
		});
	});

	describe('GlobalNavigationButton child component', () => {
		it('GlobalNavigationBarButton has attributes and onClick runs callback', function() {
			const buttonClicked = sinon.spy();
			const instance = (
				<GlobalNavigationBarButton
					label="Button"
					id="global-nav__button"
					onClick={buttonClicked('Button clicked')}
				/>
			);
			this.wrapper = mount(instance, {
				attachTo: document.body.appendChild(document.createElement('div')),
			});
			const link = this.wrapper.find('button#global-nav__button');
			expect(link.text()).to.equal('Button');
			link.simulate('click');
			expect(buttonClicked.calledOnce).to.be.true;

			this.wrapper.unmount();
		});
	});

	describe('GlobalNavigationLabel child component', () => {
		it('GlobalNavigationBarLabel has attributes', function() {
			const instance = <GlobalNavigationBarLabel label="Text" id="test-text" />;
			this.wrapper = mount(instance, {
				attachTo: document.body.appendChild(document.createElement('div')),
			});
			const item = this.wrapper.find('span#test-text');
			expect(item.text()).to.equal('Text');

			this.wrapper.unmount();
		});
	});
});