import React, { Component } from "react";
import PropTypes from "prop-types";
import { withTranslation, Trans } from "@/components/Common/Translate";
import Link from "next/link";
import Router, { withRouter } from "next/router";
import { Collapse, Badge } from "reactstrap";

import { connect } from "react-redux";
import { bindActionCreators } from "redux";
import * as actions from "../../store/actions/actions";

import SidebarUserBlock from "./SidebarUserBlock";
import { getUser } from "@/actions/auth";

import Menu from "./Menu.js";
import MenuPT from "./MenuPT.js";
// localStorage.getItem("user");
// import Menu from './MenuPT.js';

// Helper to check for parrent of an given elements
const parents = (element, selector) => {
	if (typeof selector !== "string") {
		return null;
	}

	const parents = [];
	let ancestor = element.parentNode;

	while (ancestor && ancestor.nodeType === Node.ELEMENT_NODE && ancestor.nodeType !== 3 /*NODE_TEXT*/) {
		if (ancestor.matches(selector)) {
			parents.push(ancestor);
		}

		ancestor = ancestor.parentNode;
	}
	return parents;
};
// Helper to get outerHeight of a dom element
const outerHeight = (elem, includeMargin) => {
	const style = getComputedStyle(elem);
	const margins = includeMargin ? parseInt(style.marginTop, 10) + parseInt(style.marginBottom, 10) : 0;
	return elem.offsetHeight + margins;
};

/**
    Component to display headings on sidebar
*/
const SidebarItemHeader = ({ item }) => (
	<li className="nav-heading">
		<span>
			<Trans i18nKey={item.translate}>{item.heading}</Trans>
		</span>
	</li>
);

/**
    Normal items for the sidebar
*/
const SidebarItem = ({ item, isActive, className, onMouseEnter }) => (
	<li className={isActive ? "active" : ""} onMouseEnter={onMouseEnter}>
		<Link href={item.path} as={item.as}>
			<a title={item.name}>
				{item.label && (
					<Badge tag="div" className="float-right" color={item.label.color}>
						{item.label.value}
					</Badge>
				)}
				{item.icon && <em className={item.icon} />}
				<span>
					<Trans i18nKey={item.translate}>{item.name}</Trans>
				</span>
			</a>
		</Link>
	</li>
);

/**
    Build a sub menu with items inside and attach collapse behavior
*/
const SidebarSubItem = ({ item, isActive, handler, children, isOpen, onMouseEnter }) => (
	<li className={isActive ? "active" : ""}>
		<div className="nav-item" onClick={handler} onMouseEnter={onMouseEnter}>
			{item.label && (
				<Badge tag="div" className="float-right" color={item.label.color}>
					{item.label.value}
				</Badge>
			)}
			{item.icon && <em className={item.icon} />}
			<span>
				<Trans i18nKey={item.translate}>{item.name}</Trans>
			</span>
		</div>
		<Collapse isOpen={isOpen}>
			<ul id={item.path} className="sidebar-nav sidebar-subnav">
				{children}
			</ul>
		</Collapse>
	</li>
);

/**
    Component used to display a header on menu when using collapsed/hover mode
*/
const SidebarSubHeader = ({ item }) => <li className="sidebar-subnav-header">{item.name}</li>;

const SidebarBackdrop = ({ closeFloatingNav }) => <div className="sidebar-backdrop" onClick={closeFloatingNav} />;

const FloatingNav = ({ item, target, routeActive, isFixed, closeFloatingNav }) => {
	let asideContainer = document.querySelector(".aside-container");
	let asideInner = asideContainer.firstElementChild; /*('.aside-inner')*/
	let sidebar = asideInner.firstElementChild; /*('.sidebar')*/

	let mar = parseInt(getComputedStyle(asideInner)["padding-top"], 0) + parseInt(getComputedStyle(asideContainer)["padding-top"], 0);
	let itemTop = target.parentElement.offsetTop + mar - sidebar.scrollTop;
	let vwHeight = document.body.clientHeight;

	const setPositionStyle = (el) => {
		if (!el) return;
		el.style.position = isFixed ? "fixed" : "absolute";
		el.style.top = itemTop + "px";
		el.style.bottom = outerHeight(el, true) + itemTop > vwHeight ? 0 : "auto";
	};

	return (
		<ul id={item.path} ref={setPositionStyle} className="sidebar-nav sidebar-subnav nav-floating" onMouseLeave={closeFloatingNav}>
			<SidebarSubHeader item={item} />
			{item.submenu.map((subitem, i) => (
				<SidebarItem key={i} item={subitem} isActive={routeActive(subitem.path)} />
			))}
		</ul>
	);
};

/**
    The main sidebar component
*/
class Sidebar extends Component {
	menu = [];
	state = {
		collapse: {},
		showSidebarBackdrop: false,
		currentFloatingItem: null,
		currentFloatingItemTarget: null,
		pathname: this.props.router.pathname,
	};

	async componentDidMount() {
		// this.menu = JSON.parse(sessionStorage.getItem("user")).peran[0].peran.id === 2 ? MenuPT : Menu;
		const user = await getUser();
		// dataUser.data.peran[0].peran.id === 2;
		this.menu = user.data.peran[0].peran.id === 2 ? MenuPT : Menu;
		// prepare the flags to handle menu collapsed states
		this.buildCollapseList();

		// Listen for routes changes in order to hide the sidebar on mobile
		Router.events.on("routeChangeStart", this.handleRouteChange);
		Router.events.on("routeChangeComplete", this.handleRouteComplete);

		// Attach event listener to automatically close sidebar when click outside
		document.addEventListener("click", this.closeSidebarOnExternalClicks);
	}

	handleRouteComplete = (pathname) => {
		this.setState({
			pathname,
		});
	};

	handleRouteChange = () => {
		this.closeFloatingNav();
		this.closeSidebar();
	};

	componentWillUnmount() {
		document.removeEventListener("click", this.closeSidebarOnExternalClicks);
		Router.events.off("routeChangeStart", this.handleRouteChange);
		Router.events.off("routeChangeComplete", this.handleRouteComplete);
	}

	closeSidebar = () => {
		this.props.actions.toggleSetting("asideToggled");
	};

	closeSidebarOnExternalClicks = (e) => {
		// don't check if sidebar not visible
		if (!this.props.settings.asideToggled) return;

		if (
			!parents(e.target, ".aside-container").length && // if not child of sidebar
			!parents(e.target, ".topnavbar-wrapper").length && // if not child of header
			!e.target.matches("#user-block-toggle") && // user block toggle anchor
			!e.target.parentElement.matches("#user-block-toggle") // user block toggle icon
		) {
			this.closeSidebar();
		}
	};

	/** prepare initial state of collapse menus.*/
	buildCollapseList = () => {
		let collapse = {};
		this.menu
			.filter(({ heading }) => !heading)
			.forEach(({ name, path, submenu }) => {
				collapse[name] = this.routeActive(submenu ? submenu.map(({ path }) => path) : path);
			});
		this.setState({ collapse });
	};

	routeActive = (paths) => {
		const currpath = this.state.pathname;
		paths = Array.isArray(paths) ? paths : [paths];
		return paths.some((p) => (p === "/" ? currpath === p : currpath.indexOf(p) > -1));
	};

	toggleItemCollapse = (stateName) => () => {
		for (let c in this.state.collapse) {
			if (this.state.collapse[c] === true && c !== stateName)
				this.setState({
					collapse: {
						[c]: false,
					},
				});
		}
		this.setState({
			collapse: {
				[stateName]: !this.state.collapse[stateName],
			},
		});
	};

	getSubRoutes = (item) => item.submenu.map(({ path }) => path);

	/** map menu config to string to determine which element to render */
	itemType = (item) => {
		if (item.heading) return "heading";
		if (!item.submenu) return "menu";
		if (item.submenu) return "submenu";
	};

	shouldUseFloatingNav = () => {
		return this.props.settings.isCollapsed || this.props.settings.isCollapsedText || this.props.settings.asideHover;
	};

	showFloatingNav = (item) => (e) => {
		if (this.shouldUseFloatingNav())
			this.setState({
				currentFloatingItem: item,
				currentFloatingItemTarget: e.currentTarget,
				showSidebarBackdrop: true,
			});
	};

	closeFloatingNav = () => {
		this.setState({
			currentFloatingItem: null,
			currentFloatingItemTarget: null,
			showSidebarBackdrop: false,
		});
	};

	render() {
		return (
			<>
				<aside className="aside-container">
					{/* START Sidebar (left) */}
					<div className="aside-inner">
						<nav className={"sidebar " + (this.props.settings.asideScrollbar ? "show-scrollbar" : "")}>
							{/* START sidebar nav */}
							<ul className="sidebar-nav">
								{/* START user info */}
								<li className="has-user-block">
									<SidebarUserBlock />
								</li>
								{/* END user info */}

								{/* Iterates over all sidebar items */}
								{this.menu.map((item, i) => {
									// heading
									if (this.itemType(item) === "heading") return <SidebarItemHeader item={item} key={i} />;
									else {
										if (this.itemType(item) === "menu") return <SidebarItem isActive={this.routeActive(item.path)} item={item} key={i} onMouseEnter={this.closeFloatingNav} />;
										if (this.itemType(item) === "submenu")
											return [
												<SidebarSubItem
													item={item}
													isOpen={this.state.collapse[item.name]}
													handler={this.toggleItemCollapse(item.name)}
													isActive={this.routeActive(this.getSubRoutes(item))}
													key={i}
													onMouseEnter={this.showFloatingNav(item)}
												>
													<SidebarSubHeader item={item} key={i} />
													{item.submenu.map((subitem, i) => (
														<SidebarItem key={i} item={subitem} isActive={this.routeActive(subitem.path)} />
													))}
												</SidebarSubItem>,
											];
									}
									return null; // unrecognized item
								})}
							</ul>
							{/* END sidebar nav */}
						</nav>
					</div>
					{/* END Sidebar (left) */}
					{this.state.currentFloatingItem && this.state.currentFloatingItem.submenu && (
						<FloatingNav item={this.state.currentFloatingItem} target={this.state.currentFloatingItemTarget} routeActive={this.routeActive} isFixed={this.props.settings.isFixed} closeFloatingNav={this.closeFloatingNav} />
					)}
				</aside>
				{this.state.showSidebarBackdrop && <SidebarBackdrop closeFloatingNav={this.closeFloatingNav} />}
			</>
		);
	}
}

Sidebar.propTypes = {
	actions: PropTypes.object,
	settings: PropTypes.object,
};

const mapStateToProps = (state) => ({ settings: state.settings });
const mapDispatchToProps = (dispatch) => ({
	actions: bindActionCreators(actions, dispatch),
});

export default connect(mapStateToProps, mapDispatchToProps)(withRouter(withTranslation(Sidebar)));