"use client";

import { useQuery } from "@tanstack/react-query";
import { useAtomValue } from "jotai";
import { Info } from "lucide-react";
import { useTranslations } from "next-intl";
import { useEffect, useState } from "react";
import { toast } from "sonner";
import { updateSearchSpaceMutationAtom } from "@/atoms/search-spaces/search-space-mutation.atoms";
import { Alert, AlertDescription } from "@/components/ui/alert";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Skeleton } from "@/components/ui/skeleton";
import { searchSpacesApiService } from "@/lib/apis/search-spaces-api.service";
import { cacheKeys } from "@/lib/query-client/cache-keys";
import { Spinner } from "../ui/spinner";

interface GeneralSettingsManagerProps {
	searchSpaceId: number;
}

export function GeneralSettingsManager({ searchSpaceId }: GeneralSettingsManagerProps) {
	const t = useTranslations("searchSpaceSettings");
	const tCommon = useTranslations("common");
	const {
		data: searchSpace,
		isLoading: loading,
		isError,
		refetch: fetchSearchSpace,
	} = useQuery({
		queryKey: cacheKeys.searchSpaces.detail(searchSpaceId.toString()),
		queryFn: () => searchSpacesApiService.getSearchSpace({ id: searchSpaceId }),
		enabled: !!searchSpaceId,
	});

	const { mutateAsync: updateSearchSpace } = useAtomValue(updateSearchSpaceMutationAtom);

	const [name, setName] = useState("");
	const [description, setDescription] = useState("");
	const [saving, setSaving] = useState(false);

	// Initialize state from fetched search space
	useEffect(() => {
		if (searchSpace) {
			setName(searchSpace.name || "");
			setDescription(searchSpace.description || "");
		}
	}, [searchSpace?.name, searchSpace?.description]);

	// Derive hasChanges during render
	const hasChanges = !!searchSpace && ((searchSpace.name || "") !== name || (searchSpace.description || "") !== description);

	const handleSave = async () => {
		try {
			setSaving(true);

			await updateSearchSpace({
				id: searchSpaceId,
				data: {
					name: name.trim(),
					description: description.trim() || undefined,
				},
			});

			await fetchSearchSpace();
		} catch (error: any) {
			console.error("Error saving search space details:", error);
			toast.error(error.message || "Failed to save search space details");
		} finally {
			setSaving(false);
		}
	};

	const onSubmit = (e: React.FormEvent) => {
		e.preventDefault();
		handleSave();
	};

	if (loading) {
		return (
			<div className="space-y-4 md:space-y-6">
				<Card>
					<CardHeader className="px-3 md:px-6 pt-3 md:pt-6 pb-2 md:pb-3">
						<Skeleton className="h-5 md:h-6 w-36 md:w-48" />
						<Skeleton className="h-3 md:h-4 w-full max-w-md mt-2" />
					</CardHeader>
					<CardContent className="space-y-3 md:space-y-4 px-3 md:px-6 pb-3 md:pb-6">
						<Skeleton className="h-10 md:h-12 w-full" />
						<Skeleton className="h-10 md:h-12 w-full" />
					</CardContent>
				</Card>
			</div>
		);
	}

	if (isError) {
		return (
			<div className="flex flex-col items-center justify-center gap-3 py-8 text-center">
				<p className="text-sm text-destructive">Failed to load settings.</p>
				<Button variant="outline" size="sm" onClick={() => fetchSearchSpace()}>
					Retry
				</Button>
			</div>
		);
	}

	return (
		<div className="space-y-4 md:space-y-6">
			<Alert className="bg-muted/50 py-3 md:py-4">
				<Info className="h-3 w-3 md:h-4 md:w-4 shrink-0" />
				<AlertDescription className="text-xs md:text-sm">
					Update your search space name and description. These details help identify and organize
					your workspace.
				</AlertDescription>
			</Alert>

			{/* Search Space Details Card */}
			<form onSubmit={onSubmit} className="space-y-4 md:space-y-6">
				<Card>
					<CardHeader className="px-3 md:px-6 pt-3 md:pt-6 pb-2 md:pb-3">
						<CardTitle className="text-base md:text-lg">Search Space Details</CardTitle>
						<CardDescription className="text-xs md:text-sm">
							Manage the basic information for this search space.
						</CardDescription>
					</CardHeader>
					<CardContent className="space-y-4 md:space-y-5 px-3 md:px-6 pb-3 md:pb-6">
						<div className="space-y-1.5 md:space-y-2">
							<Label htmlFor="search-space-name" className="text-sm md:text-base font-medium">
								{t("general_name_label")}
							</Label>
							<Input
								id="search-space-name"
								placeholder={t("general_name_placeholder")}
								value={name}
								onChange={(e) => setName(e.target.value)}
								className="text-sm md:text-base h-9 md:h-10"
							/>
							<p className="text-[10px] md:text-xs text-muted-foreground">
								{t("general_name_description")}
							</p>
						</div>

						<div className="space-y-1.5 md:space-y-2">
							<Label
								htmlFor="search-space-description"
								className="text-sm md:text-base font-medium"
							>
								{t("general_description_label")}{" "}
								<span className="text-muted-foreground font-normal">({tCommon("optional")})</span>
							</Label>
							<Input
								id="search-space-description"
								placeholder={t("general_description_placeholder")}
								value={description}
								onChange={(e) => setDescription(e.target.value)}
								className="text-sm md:text-base h-9 md:h-10"
							/>
							<p className="text-[10px] md:text-xs text-muted-foreground">
								{t("general_description_description")}
							</p>
						</div>
					</CardContent>
				</Card>

				{/* Action Buttons */}
				<div className="flex justify-end pt-3 md:pt-4">
					<Button
						type="submit"
						variant="outline"
						disabled={!hasChanges || saving || !name.trim()}
						className="gap-2 bg-white text-black hover:bg-neutral-100 dark:bg-white dark:text-black dark:hover:bg-neutral-200"
					>
						{saving ? <Spinner size="sm" /> : null}
						{saving ? t("general_saving") : t("general_save")}
					</Button>
				</div>
			</form>
		</div>
	);
}
