"use client";

import {
	ChevronRight,
	Clock,
	Heart,
	HelpCircle,
	History,
	Home,
	LayoutGrid,
	LogIn,
	LogOut,
	MessageCircle,
	PlusCircle,
	Settings,
	ShieldCheck,
	TrendingUp,
	User as UserIcon,
} from "lucide-react";
import Image from "next/image";
import Link from "next/link";
import { usePathname, useSearchParams } from "next/navigation";
import { useTheme } from "next-themes";
import * as React from "react";
import { ModeToggle } from "@/components/mode-toggle";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import {
	Collapsible,
	CollapsibleContent,
	CollapsibleTrigger,
} from "@/components/ui/collapsible";
import {
	DropdownMenu,
	DropdownMenuContent,
	DropdownMenuItem,
	DropdownMenuLabel,
	DropdownMenuSeparator,
	DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import {
	Sidebar,
	SidebarContent,
	SidebarFooter,
	SidebarGroup,
	SidebarGroupLabel,
	SidebarHeader,
	SidebarMenu,
	SidebarMenuBadge,
	SidebarMenuButton,
	SidebarMenuItem,
	SidebarMenuSub,
	SidebarMenuSubButton,
	SidebarMenuSubItem,
	SidebarRail,
	SidebarTrigger,
} from "@/components/ui/sidebar";
import { useAuth } from "@/providers/auth-provider";
import { useSocket } from "@/providers/socket-provider";
import { CategoryService } from "@/services/category.service";
import { MessageService } from "@/services/message.service";
import type { Category } from "@/types/content";

const mainNav = [
	{
		title: "Accueil",
		url: "/",
		icon: Home,
	},
	{
		title: "Tendances",
		url: "/trends",
		icon: TrendingUp,
	},
	{
		title: "Nouveautés",
		url: "/recent",
		icon: Clock,
	},
];

export function AppSidebar() {
	const pathname = usePathname();
	const searchParams = useSearchParams();
	const { user, logout, isAuthenticated } = useAuth();
	const { socket } = useSocket();
	const { resolvedTheme } = useTheme();
	const [categories, setCategories] = React.useState<Category[]>([]);
	const [mounted, setMounted] = React.useState(false);
	const [unreadMessages, setUnreadMessages] = React.useState(0);

	React.useEffect(() => {
		setMounted(true);
		CategoryService.getAll().then(setCategories).catch(console.error);
	}, []);

	// Gérer le compteur de messages non-lus
	React.useEffect(() => {
		if (isAuthenticated) {
			MessageService.getUnreadCount().then(setUnreadMessages).catch(console.error);
		}
	}, [isAuthenticated]);

	React.useEffect(() => {
		if (socket && isAuthenticated) {
			socket.on("new_message", () => {
				// Incrémenter si on n'est pas sur la page messages
				if (pathname !== "/messages") {
					setUnreadMessages((prev) => prev + 1);
				}
			});

			return () => {
				socket.off("new_message");
			};
		}
	}, [socket, isAuthenticated, pathname]);

	// Remettre à zéro si on arrive sur la page messages
	React.useEffect(() => {
		if (pathname === "/messages") {
			setUnreadMessages(0);
		}
	}, [pathname]);

	const logoSrc = React.useMemo(() => {
		if (!mounted) return "/memegoat-color.svg";
		return resolvedTheme === "dark"
			? "/memegoat-white.svg"
			: "/memegoat-black.svg";
	}, [resolvedTheme, mounted]);

	return (
		<Sidebar collapsible="icon">
			<SidebarHeader className="flex flex-row items-center justify-between py-4 group-data-[collapsible=icon]:justify-center">
				<Link
					href="/"
					className="flex items-center gap-2 font-bold text-xl overflow-hidden"
				>
					<div className="p-1 rounded shrink-0">
						<Image
							src={logoSrc}
							alt="MemeGoat Logo"
							width={32}
							height={32}
							className="w-8 h-8"
						/>
					</div>
					<span className="group-data-[collapsible=icon]:hidden whitespace-nowrap">
						MemeGoat
					</span>
				</Link>
				<SidebarTrigger className="hidden md:flex group-data-[collapsible=icon]:hidden" />
			</SidebarHeader>
			<SidebarContent>
				<SidebarGroup>
					<SidebarMenu>
						{mainNav.map((item) => (
							<SidebarMenuItem key={item.title}>
								<SidebarMenuButton
									asChild
									isActive={pathname === item.url}
									tooltip={item.title}
								>
									<Link href={item.url}>
										<item.icon />
										<span>{item.title}</span>
									</Link>
								</SidebarMenuButton>
							</SidebarMenuItem>
						))}
					</SidebarMenu>
				</SidebarGroup>

				<SidebarGroup>
					<SidebarGroupLabel>Explorer</SidebarGroupLabel>
					<SidebarMenu>
						<Collapsible asChild className="group/collapsible">
							<SidebarMenuItem>
								<CollapsibleTrigger asChild>
									<SidebarMenuButton tooltip="Catégories">
										<LayoutGrid />
										<span>Catégories</span>
										<ChevronRight className="ml-auto transition-transform duration-200 group-data-[state=open]/collapsible:rotate-90" />
									</SidebarMenuButton>
								</CollapsibleTrigger>
								<CollapsibleContent>
									<SidebarMenuSub>
										{categories.map((category) => (
											<SidebarMenuSubItem key={category.id}>
												<SidebarMenuSubButton
													asChild
													isActive={pathname === `/category/${category.slug}`}
												>
													<Link href={`/category/${category.slug}`}>
														<span>{category.name}</span>
													</Link>
												</SidebarMenuSubButton>
											</SidebarMenuSubItem>
										))}
									</SidebarMenuSub>
								</CollapsibleContent>
							</SidebarMenuItem>
						</Collapsible>
					</SidebarMenu>
				</SidebarGroup>

				<SidebarGroup>
					<SidebarGroupLabel>Communauté</SidebarGroupLabel>
					<SidebarMenu>
						<SidebarMenuItem>
							<SidebarMenuButton asChild tooltip="Publier">
								<Link href="/upload">
									<PlusCircle />
									<span>Publier</span>
								</Link>
							</SidebarMenuButton>
						</SidebarMenuItem>
						{isAuthenticated && (
							<SidebarMenuItem>
								<SidebarMenuButton
									asChild
									isActive={pathname === "/messages"}
									tooltip="Messages"
								>
									<Link href="/messages">
										<MessageCircle />
										<span>Messages</span>
									</Link>
								</SidebarMenuButton>
								{unreadMessages > 0 && (
									<SidebarMenuBadge className="bg-red-500 text-white border-none h-5 min-w-5 flex items-center justify-center p-1 text-[10px]">
										{unreadMessages > 9 ? "9+" : unreadMessages}
									</SidebarMenuBadge>
								)}
							</SidebarMenuItem>
						)}
					</SidebarMenu>
				</SidebarGroup>

				<SidebarGroup>
					<SidebarGroupLabel>Ma Bibliothèque</SidebarGroupLabel>
					<SidebarMenu>
						<SidebarMenuItem>
							<SidebarMenuButton
								asChild
								isActive={
									pathname === "/profile" && searchParams.get("tab") === "favorites"
								}
								tooltip="Mes Favoris"
							>
								<Link href="/profile?tab=favorites">
									<Heart />
									<span>Mes Favoris</span>
								</Link>
							</SidebarMenuButton>
						</SidebarMenuItem>
						<SidebarMenuItem>
							<SidebarMenuButton
								asChild
								isActive={
									pathname === "/profile" && searchParams.get("tab") === "memes"
								}
								tooltip="Mes Mèmes"
							>
								<Link href="/profile?tab=memes">
									<History />
									<span>Mes Mèmes</span>
								</Link>
							</SidebarMenuButton>
						</SidebarMenuItem>
					</SidebarMenu>
				</SidebarGroup>

				{isAuthenticated && user?.role === "admin" && (
					<SidebarGroup>
						<SidebarGroupLabel>Administration</SidebarGroupLabel>
						<SidebarMenu>
							<SidebarMenuItem>
								<SidebarMenuButton
									asChild
									isActive={pathname.startsWith("/admin")}
									tooltip="Dashboard Admin"
								>
									<Link href="/admin">
										<ShieldCheck />
										<span>Admin</span>
									</Link>
								</SidebarMenuButton>
							</SidebarMenuItem>
						</SidebarMenu>
					</SidebarGroup>
				)}
			</SidebarContent>
			<SidebarFooter>
				<SidebarMenu>
					{isAuthenticated && user ? (
						<SidebarMenuItem>
							<DropdownMenu>
								<DropdownMenuTrigger asChild>
									<SidebarMenuButton
										size="lg"
										className="data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
									>
										<Avatar className="h-8 w-8 rounded-lg">
											<AvatarImage src={user.avatarUrl} alt={user.username} />
											<AvatarFallback className="rounded-lg">
												{user.username.slice(0, 2).toUpperCase()}
											</AvatarFallback>
										</Avatar>
										<div className="grid flex-1 text-left text-sm leading-tight group-data-[collapsible=icon]:hidden">
											<span className="truncate font-semibold">
												{user.displayName || user.username}
											</span>
											<span className="truncate text-xs">{user.role}</span>
										</div>
										<ChevronRight className="ml-auto size-4 group-data-[collapsible=icon]:hidden" />
									</SidebarMenuButton>
								</DropdownMenuTrigger>
								<DropdownMenuContent
									className="w-(--radix-dropdown-menu-trigger-width) min-w-56 rounded-lg"
									side="right"
									align="end"
									sideOffset={4}
								>
									<DropdownMenuLabel className="p-0 font-normal">
										<div className="flex items-center gap-2 px-1 py-1.5 text-left text-sm">
											<Avatar className="h-8 w-8 rounded-lg">
												<AvatarImage src={user.avatarUrl} alt={user.username} />
												<AvatarFallback className="rounded-lg">
													{user.username.slice(0, 2).toUpperCase()}
												</AvatarFallback>
											</Avatar>
											<div className="grid flex-1 text-left text-sm leading-tight">
												<span className="truncate font-semibold">
													{user.displayName || user.username}
												</span>
												<span className="truncate text-xs">{user.role}</span>
											</div>
										</div>
									</DropdownMenuLabel>
									<DropdownMenuSeparator />
									<DropdownMenuItem asChild>
										<Link href="/profile" className="flex items-center gap-2">
											<UserIcon className="size-4" />
											<span>Profil</span>
										</Link>
									</DropdownMenuItem>
									<DropdownMenuItem asChild>
										<Link href="/settings" className="flex items-center gap-2">
											<Settings className="size-4" />
											<span>Paramètres</span>
										</Link>
									</DropdownMenuItem>
									<DropdownMenuSeparator />
									<DropdownMenuItem onClick={() => logout()}>
										<LogOut className="size-4 mr-2" />
										<span>Déconnexion</span>
									</DropdownMenuItem>
								</DropdownMenuContent>
							</DropdownMenu>
						</SidebarMenuItem>
					) : (
						<SidebarMenuItem>
							<SidebarMenuButton asChild tooltip="Se connecter">
								<Link href="/login">
									<LogIn className="size-4" />
									<span>Se connecter</span>
								</Link>
							</SidebarMenuButton>
						</SidebarMenuItem>
					)}
					<SidebarMenuItem>
						<div className="flex items-center justify-between px-2 py-2">
							<span className="text-xs font-medium text-muted-foreground group-data-[collapsible=icon]:hidden">
								Thème
							</span>
							<ModeToggle />
						</div>
					</SidebarMenuItem>
					<SidebarMenuItem>
						<SidebarMenuButton asChild tooltip="Aide">
							<Link href="/help">
								<HelpCircle />
								<span>Aide</span>
							</Link>
						</SidebarMenuButton>
					</SidebarMenuItem>
				</SidebarMenu>
			</SidebarFooter>
			<SidebarRail />
		</Sidebar>
	);
}