"use client";

import type { ReactNode } from "react";

import { Button } from "@/components/ui/button";
import type { Meta } from "./import-furni-types";

export function Pagination({
	meta,
	loading,
	onPageChange,
}: {
	meta: Meta | null;
	loading: boolean;
	onPageChange: (page: number) => void;
}) {
	if (!meta || meta.lastPage <= 1) return null;
	const nodes: ReactNode[] = [];
	if (meta.currentPage > 1) {
		nodes.push(
			<Button
				key="prev"
				variant="ghost"
				size="sm"
				onClick={() => onPageChange(meta.currentPage - 1)}
				disabled={loading}
				className="text-xs"
			>
				&larr; Prev
			</Button>,
		);
	}
	for (let p = 1; p <= meta.lastPage; p++) {
		if (p === meta.currentPage) {
			nodes.push(
				<Button
					key={p}
					variant="default"
					size="sm"
					className="text-xs min-w-[32px]"
				>
					{p}
				</Button>,
			);
		} else if (
			Math.abs(p - meta.currentPage) <= 2 ||
			p === 1 ||
			p === meta.lastPage
		) {
			nodes.push(
				<Button
					key={p}
					variant="ghost"
					size="sm"
					onClick={() => onPageChange(p)}
					disabled={loading}
					className="text-xs min-w-[32px]"
				>
					{p}
				</Button>,
			);
		} else if (Math.abs(p - meta.currentPage) === 3) {
			nodes.push(
				<span key={`dots-${p}`} className="text-muted-foreground text-xs px-1">
					&hellip;
				</span>,
			);
		}
	}
	if (meta.currentPage < meta.lastPage) {
		nodes.push(
			<Button
				key="next"
				variant="ghost"
				size="sm"
				onClick={() => onPageChange(meta.currentPage + 1)}
				disabled={loading}
				className="text-xs"
			>
				Next &rarr;
			</Button>,
		);
	}
	return (
		<div className="flex items-center justify-center gap-1 mt-4 flex-wrap">
			{nodes}
		</div>
	);
}