import clsx from "clsx";
import { IconType } from "react-icons";
import { MdSpaceDashboard } from "react-icons/md";
import {
	BsFileEarmarkText,
	BsClockHistory,
	BsPencil,
	BsGraphUp,
	BsChevronBarRight,
	BsChevronBarLeft,
	BsShieldFill,
	BsCloudFill,
	BsCurrencyDollar,
	BsClipboardData,
	BsPeople,
} from "react-icons/bs";
import { CiDumbbell } from "react-icons/ci";
import { RiLogoutBoxFill } from "react-icons/ri";
import Link from "next/link";
import { useRouter } from "next/router";
import axios from "axios";
import FocusLayer from "@/components/FocusLayer";
import { preventNavigation } from "@/utils/navigation.disabled";
import usePreferencesStore from "@/stores/preferencesStore";
import { User } from "@/interfaces/user";
import useTicketsListener from "@/hooks/useTicketsListener";
import { checkAccess, getTypesOfUser } from "@/utils/permissions";
import usePermissions from "@/hooks/usePermissions";
import { EntityWithRoles } from "@/interfaces/entity";
import { useAllowedEntities, useAllowedEntitiesSomePermissions } from "@/hooks/useEntityPermissions";
import { useMemo } from "react";

interface Props {
	path: string;
	navDisabled?: boolean;
	focusMode?: boolean;
	onFocusLayerMouseEnter?: () => void;
	className?: string;
	user: User;
	entities?: EntityWithRoles[]
}

interface NavProps {
	Icon: IconType;
	label: string;
	path: string;
	keyPath: string;
	disabled?: boolean;
	isMinimized?: boolean;
	badge?: number;
}

const Nav = ({ Icon, label, path, keyPath, disabled = false, isMinimized = false, badge }: NavProps) => {
	return (
		<Link
			href={!disabled ? keyPath : ""}
			className={clsx(
				"flex items-center gap-4 rounded-full p-4 text-gray-500 hover:text-white",
				"transition-all duration-300 ease-in-out relative",
				disabled ? "hover:bg-mti-gray-dim cursor-not-allowed" : "hover:bg-mti-purple-light cursor-pointer",
				path.startsWith(keyPath) && "bg-mti-purple-light text-white",
				isMinimized ? "w-fit" : "w-full min-w-[200px] px-8 2xl:min-w-[220px]",
			)}>
			<Icon size={24} />
			{!isMinimized && <span className="text-lg font-semibold">{label}</span>}
			{!!badge && badge > 0 && (
				<div
					className={clsx(
						"bg-mti-purple-light h-5 w-5 text-xs rounded-full flex items-center justify-center text-white",
						"transition ease-in-out duration-300",
						isMinimized && "absolute right-0 top-0",
					)}>
					{badge}
				</div>
			)}
		</Link>
	);
};

export default function Sidebar({
	path,
	entities = [],
	navDisabled = false,
	focusMode = false,
	user,
	onFocusLayerMouseEnter,
	className
}: Props) {
	const router = useRouter();

	const isAdmin = useMemo(() => ['developer', 'admin'].includes(user?.type), [user?.type])

	const [isMinimized, toggleMinimize] = usePreferencesStore((state) => [state.isSidebarMinimized, state.toggleSidebarMinimized]);

	const { totalAssignedTickets } = useTicketsListener(user.id);
	const { permissions } = usePermissions(user.id);

	const entitiesAllowStatistics = useAllowedEntities(user, entities, "view_statistics")
	const entitiesAllowPaymentRecord = useAllowedEntities(user, entities, "view_payment_record")

	const entitiesAllowGeneration = useAllowedEntitiesSomePermissions(user, entities, [
		"generate_reading", "generate_listening", "generate_writing", "generate_speaking", "generate_level"
	])

	const logout = async () => {
		axios.post("/api/logout").finally(() => {
			setTimeout(() => router.reload(), 500);
		});
	};

	const disableNavigation = preventNavigation(navDisabled, focusMode);

	return (
		<section
			className={clsx(
				"relative flex h-full flex-col justify-between bg-transparent px-4 py-4 pb-8",
				isMinimized ? "w-fit" : "-xl:w-fit w-1/6",
				className,
			)}>
			<div className="-xl:hidden flex-col gap-3 xl:flex">
				<Nav disabled={disableNavigation} Icon={MdSpaceDashboard} label="Dashboard" path={path} keyPath="/dashboard" isMinimized={isMinimized} />
				{checkAccess(user, ["student", "teacher", "developer"], permissions, "viewExams") && (
					<Nav disabled={disableNavigation} Icon={BsFileEarmarkText} label="Practice" path={path} keyPath="/exam" isMinimized={isMinimized} />
				)}
				{checkAccess(user, getTypesOfUser(["agent"])) && entitiesAllowStatistics.length > 0 && (
					<Nav disabled={disableNavigation} Icon={BsGraphUp} label="Stats" path={path} keyPath="/stats" isMinimized={isMinimized} />
				)}
				{checkAccess(user, ["developer", "admin", "mastercorporate", "corporate", "teacher", "student"], permissions) && (
					<Nav
						disabled={disableNavigation}
						Icon={BsPeople}
						label="Classrooms"
						path={path}
						keyPath="/classrooms"
						isMinimized={isMinimized}
					/>
				)}
				{checkAccess(user, getTypesOfUser(["agent"]), permissions, "viewRecords") && (
					<Nav disabled={disableNavigation} Icon={BsClockHistory} label="Record" path={path} keyPath="/record" isMinimized={isMinimized} />
				)}
				{checkAccess(user, getTypesOfUser(["agent"]), permissions, "viewRecords") && (
					<Nav disabled={disableNavigation} Icon={CiDumbbell} label="Training" path={path} keyPath="/training" isMinimized={isMinimized} />
				)}
				{checkAccess(user, ["admin", "developer", "agent", "corporate", "mastercorporate"]) && entitiesAllowPaymentRecord.length > 0 && (
					<Nav
						disabled={disableNavigation}
						Icon={BsCurrencyDollar}
						label="Payment Record"
						path={path}
						keyPath="/payment-record"
						isMinimized={isMinimized}
					/>
				)}
				{checkAccess(user, ["admin", "developer", "corporate", "teacher", "mastercorporate"]) && (
					<Nav
						disabled={disableNavigation}
						Icon={BsShieldFill}
						label="Settings"
						path={path}
						keyPath="/settings"
						isMinimized={isMinimized}
					/>
				)}
				{checkAccess(user, ["admin", "developer", "agent"], permissions, "viewTickets") && (
					<Nav
						disabled={disableNavigation}
						Icon={BsClipboardData}
						label="Tickets"
						path={path}
						keyPath="/tickets"
						isMinimized={isMinimized}
						badge={totalAssignedTickets}
					/>
				)}
				{checkAccess(user, ["admin", "developer", "teacher", 'corporate', 'mastercorporate'])
					&& (entitiesAllowGeneration.length > 0 || isAdmin) && (
						<Nav
							disabled={disableNavigation}
							Icon={BsCloudFill}
							label="Generation"
							path={path}
							keyPath="/generation"
							isMinimized={isMinimized}
						/>
					)}
			</div>
			<div className="-xl:flex flex-col gap-3 xl:hidden">
				<Nav disabled={disableNavigation} Icon={MdSpaceDashboard} label="Dashboard" path={path} keyPath="/" isMinimized />
				<Nav disabled={disableNavigation} Icon={BsFileEarmarkText} label="Exams" path={path} keyPath="/exam" isMinimized />
				{checkAccess(user, getTypesOfUser(["agent"]), permissions, "viewStats") && (
					<Nav disabled={disableNavigation} Icon={BsGraphUp} label="Stats" path={path} keyPath="/stats" isMinimized />
				)}
				{checkAccess(user, getTypesOfUser(["agent"]), permissions, "viewRecords") && (
					<Nav disabled={disableNavigation} Icon={BsClockHistory} label="Record" path={path} keyPath="/record" isMinimized />
				)}
				{checkAccess(user, getTypesOfUser(["agent"]), permissions, "viewRecords") && (
					<Nav disabled={disableNavigation} Icon={CiDumbbell} label="Training" path={path} keyPath="/training" isMinimized />
				)}
				{checkAccess(user, getTypesOfUser(["student"])) && (
					<Nav disabled={disableNavigation} Icon={BsShieldFill} label="Settings" path={path} keyPath="/settings" isMinimized />
				)}
				{entitiesAllowGeneration.length > 0 && (
					<Nav
						disabled={disableNavigation}
						Icon={BsCloudFill}
						label="Generation"
						path={path}
						keyPath="/generation"
						isMinimized
					/>
				)}
			</div>

			<div className="2xl:fixed bottom-12 flex flex-col gap-0 -2xl:mt-8">
				<div
					role="button"
					tabIndex={1}
					onClick={toggleMinimize}
					className={clsx(
						"hover:text-mti-rose -xl:hidden flex cursor-pointer items-center gap-4 rounded-full p-4 text-black transition duration-300 ease-in-out",
						isMinimized ? "w-fit" : "w-full min-w-[250px] px-8",
					)}>
					{isMinimized ? <BsChevronBarRight size={24} /> : <BsChevronBarLeft size={24} />}
					{!isMinimized && <span className="text-lg font-medium">Minimize</span>}
				</div>
				<div
					role="button"
					tabIndex={1}
					onClick={focusMode ? () => { } : logout}
					className={clsx(
						"hover:text-mti-rose flex cursor-pointer items-center gap-4 rounded-full p-4 text-black transition duration-300 ease-in-out",
						isMinimized ? "w-fit" : "w-full min-w-[250px] px-8",
					)}>
					<RiLogoutBoxFill size={24} />
					{!isMinimized && <span className="-xl:hidden text-lg font-medium">Log Out</span>}
				</div>
			</div>
			{focusMode && <FocusLayer onFocusLayerMouseEnter={onFocusLayerMouseEnter} />}
		</section>
	);
}