"use client";

import { Calendar, Camera, LogIn, LogOut, Settings } from "lucide-react";
import Link from "next/link";
import { useSearchParams } from "next/navigation";
import * as React from "react";
import { toast } from "sonner";
import { ContentList } from "@/components/content-list";
import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar";
import { Button } from "@/components/ui/button";
import {
	Card,
	CardContent,
	CardDescription,
	CardHeader,
	CardTitle,
} from "@/components/ui/card";
import { Spinner } from "@/components/ui/spinner";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
import { useAuth } from "@/providers/auth-provider";
import { ContentService } from "@/services/content.service";
import { FavoriteService } from "@/services/favorite.service";
import { UserService } from "@/services/user.service";

export default function ProfilePage() {
	const { user, isAuthenticated, isLoading, logout, refreshUser } = useAuth();
	const searchParams = useSearchParams();
	const tab = searchParams.get("tab") || "memes";
	const fileInputRef = React.useRef<HTMLInputElement>(null);

	const handleAvatarClick = () => {
		fileInputRef.current?.click();
	};

	const handleFileChange = async (
		event: React.ChangeEvent<HTMLInputElement>,
	) => {
		const file = event.target.files?.[0];
		if (!file) return;

		try {
			await UserService.updateAvatar(file);
			toast.success("Avatar mis à jour avec succès !");
			await refreshUser?.();
		} catch (error) {
			console.error(error);
			toast.error("Erreur lors de la mise à jour de l'avatar.");
		}
	};

	const fetchMyMemes = React.useCallback(
		(params: { limit: number; offset: number }) =>
			ContentService.getExplore({ ...params, author: user?.username }),
		[user?.username],
	);

	const fetchMyFavorites = React.useCallback(
		(params: { limit: number; offset: number }) => FavoriteService.list(params),
		[],
	);

	if (isLoading) {
		return (
			<div className="flex h-[400px] items-center justify-center">
				<Spinner className="h-8 w-8 text-primary" />
			</div>
		);
	}

	if (!isAuthenticated || !user) {
		return (
			<div className="max-w-2xl mx-auto py-8 px-4 text-center">
				<Card className="p-12">
					<CardHeader>
						<div className="mx-auto bg-primary/10 p-4 rounded-full w-fit mb-4">
							<LogIn className="h-8 w-8 text-primary" />
						</div>
						<CardTitle>Profil inaccessible</CardTitle>
						<CardDescription>
							Vous devez être connecté pour voir votre profil, vos mèmes et vos
							favoris.
						</CardDescription>
					</CardHeader>
					<CardContent>
						<Button asChild className="w-full sm:w-auto">
							<Link href="/login">Se connecter</Link>
						</Button>
					</CardContent>
				</Card>
			</div>
		);
	}

	return (
		<div className="max-w-4xl mx-auto py-8 px-4">
			<div className="bg-white dark:bg-zinc-900 rounded-2xl p-8 border shadow-sm mb-8">
				<div className="flex flex-col md:flex-row items-center gap-8">
					<div className="relative group">
						<Avatar className="h-32 w-32 border-4 border-primary/10">
							<AvatarImage src={user.avatarUrl} alt={user.username} />
							<AvatarFallback className="text-4xl">
								{user.username.slice(0, 2).toUpperCase()}
							</AvatarFallback>
						</Avatar>
						<button
							type="button"
							onClick={handleAvatarClick}
							className="absolute inset-0 flex items-center justify-center bg-black/40 text-white rounded-full opacity-0 group-hover:opacity-100 transition-opacity"
						>
							<Camera className="h-8 w-8" />
						</button>
						<input
							type="file"
							ref={fileInputRef}
							onChange={handleFileChange}
							accept="image/*"
							className="hidden"
						/>
					</div>
					<div className="flex-1 text-center md:text-left space-y-4">
						<div>
							<h1 className="text-3xl font-bold">
								{user.displayName || user.username}
							</h1>
							<p className="text-muted-foreground">@{user.username}</p>
						</div>
						{user.bio && (
							<p className="max-w-md text-sm leading-relaxed">{user.bio}</p>
						)}
						<div className="flex flex-wrap justify-center md:justify-start gap-4 text-sm text-muted-foreground">
							<span className="flex items-center gap-1">
								<Calendar className="h-4 w-4" />
								Membre depuis{" "}
								{new Date(user.createdAt).toLocaleDateString("fr-FR", {
									month: "long",
									year: "numeric",
								})}
							</span>
						</div>
						<div className="flex flex-wrap justify-center md:justify-start gap-2">
							<Button asChild variant="outline" size="sm">
								<Link href="/settings">
									<Settings className="h-4 w-4 mr-2" />
									Paramètres
								</Link>
							</Button>
							<Button
								variant="ghost"
								size="sm"
								onClick={() => logout()}
								className="text-red-500 hover:text-red-600 hover:bg-red-50"
							>
								<LogOut className="h-4 w-4 mr-2" />
								Déconnexion
							</Button>
						</div>
					</div>
				</div>
			</div>

			<Tabs value={tab} className="w-full">
				<TabsList className="grid w-full grid-cols-2 mb-8">
					<TabsTrigger value="memes" asChild>
						<Link href="/profile?tab=memes">Mes Mèmes</Link>
					</TabsTrigger>
					<TabsTrigger value="favorites" asChild>
						<Link href="/profile?tab=favorites">Mes Favoris</Link>
					</TabsTrigger>
				</TabsList>
				<TabsContent value="memes">
					<ContentList fetchFn={fetchMyMemes} />
				</TabsContent>
				<TabsContent value="favorites">
					<ContentList fetchFn={fetchMyFavorites} />
				</TabsContent>
			</Tabs>
		</div>
	);
}
