import { getCookie, setCookie } from "cookies-next/client";
import { add } from "date-fns";
import { X } from "lucide-react";
import Link from "next/link";
import { type MouseEvent, useEffect, useRef, useState } from "react";
import { IconMatrix, type IconType } from "~/components/IconComponents";
import { cn } from "~/lib/utils";
import type { Banners } from "~/schemas/public/Banners";

const defaultHideDuration = 365; // days
export const BannerFactory = (bannerData: Banners) => {
	const NEW_BANNER_KEY = `bannercookie_${bannerData.idbanner}`;

	let bgColor = "";
	let accentColor = "";
	let closeHoverColor = "";

	switch (bannerData.color) {
		case "blu":
			bgColor = "bg-blue-600";
			accentColor = "bg-blue-800";
			closeHoverColor = "hover:bg-blue-500";
			break;
		case "rosso":
			bgColor = "bg-red-600";
			accentColor = "bg-red-800";
			closeHoverColor = "hover:bg-red-500";
			break;
		case "verde":
			bgColor = "bg-green-600";
			accentColor = "bg-green-800";
			closeHoverColor = "hover:bg-green-500";
			break;
		case "indaco":
			bgColor = "bg-indigo-600";
			accentColor = "bg-indigo-800";
			closeHoverColor = "hover:bg-indigo-500";
			break;
		default:
			bgColor = "bg-indigo-600";
			accentColor = "bg-indigo-800";
			closeHoverColor = "hover:bg-indigo-500";
			break;
	}

	const NewBanner = () => {
		const [isBannerToShow, setIsBannerToShow] = useState(false);

		useEffect(() => {
			if (bannerData.is_unskippable === false) {
				const cookievalue = getCookie(NEW_BANNER_KEY) !== "true";

				setIsBannerToShow(cookievalue);
			}
		}, []);

		const onClick = (e: MouseEvent<HTMLButtonElement>) => {
			e.preventDefault();
			setCookie(NEW_BANNER_KEY, "true", {
				expires: add(new Date(), {
					days: bannerData.hide_duration || defaultHideDuration,
				}),
			});
			setIsBannerToShow(false);
		};

		if (!isBannerToShow && bannerData.is_unskippable === false) {
			return null;
		}
		return (
			<div className={cn("bg-indigo-600", bgColor)}>
				<div className="mx-auto flex max-w-7xl items-start justify-between px-4 py-3 text-white sm:items-center md:px-8">
					<div className="flex flex-1 items-start justify-center gap-x-4 sm:items-center">
						<div
							className={cn(
								"flex flex-none items-center justify-center rounded-full bg-indigo-800 p-1.5 px-4 font-medium text-sm",
								accentColor,
							)}
						>
							{bannerData.titolo}{" "}
						</div>
						<p className="flex gap-2 p-2 font-medium">
							<span> {bannerData.testo}</span>

							{bannerData.has_cta &&
								bannerData.cta_href &&
								bannerData.cta_icon && (
									<Link
										className="inline-flex items-center gap-x-1 font-semibold underline duration-150 hover:text-indigo-100"
										href={bannerData.cta_href}
									>
										{bannerData.cta_text}
										<IconMatrix
											className="size-4"
											type={bannerData.cta_icon as IconType}
										/>
									</Link>
								)}
						</p>
					</div>
					{bannerData.is_unskippable === false && (
						<button
							className={cn(
								"rounded-lg p-2 ring-offset-2 duration-150 hover:bg-indigo-500 focus:ring",
								closeHoverColor,
							)}
							onClick={onClick}
							type="button"
						>
							<X className="size-5" />
						</button>
					)}
				</div>
			</div>
		);
	};
	return <NewBanner />;
};

export function AnniversaryBanner() {
	const [isVisible, setIsVisible] = useState(false);
	const bannerRef = useRef<HTMLDivElement>(null);

	useEffect(() => {
		const observer = new IntersectionObserver(
			([entry]) => {
				if (entry?.isIntersecting) {
					setIsVisible(true);
				}
			},
			{ threshold: 0.3 },
		);

		if (bannerRef.current) {
			observer.observe(bannerRef.current);
		}

		return () => observer.disconnect();
	}, []);

	return (
		<div
			className="relative mx-auto w-full max-w-5xl overflow-hidden rounded-lg bg-secondary"
			ref={bannerRef}
		>
			{/* Decorative background "25" */}
			<div
				className={`absolute top-1/2 -right-8 -translate-y-1/2 font-bold text-[8rem] text-primary/20 leading-none transition-all duration-1000 md:text-[12rem] ${
					isVisible ? "translate-x-0 opacity-100" : "translate-x-16 opacity-0"
				}`}
			>
				25
			</div>

			{/* Main content - horizontal layout */}
			<div className="relative mx-auto flex max-w-7xl flex-col items-center justify-between gap-6 px-6 py-6 text-primary md:flex-row md:gap-8 md:px-8 md:py-8">
				{/* Left: Badge + Number */}
				<div
					className={`flex items-center gap-4 transition-all delay-100 duration-700 md:gap-6 ${
						isVisible ? "translate-x-0 opacity-100" : "-translate-x-8 opacity-0"
					}`}
				>
					<div className="flex items-center gap-2">
						<div className="h-px w-6 bg-primary" />
						<span className="whitespace-nowrap font-medium text-[10px] uppercase tracking-[0.2em] md:text-xs">
							Da più di
						</span>
					</div>
					<div className="flex items-baseline gap-2">
						<span className="font-bold text-5xl leading-none tracking-tight md:text-6xl lg:text-7xl">
							25
						</span>
						<span className="font-light text-sm uppercase tracking-[0.2em] md:text-base">
							Anni
						</span>
					</div>
				</div>

				{/* Center: Tagline */}
				<div
					className={`flex-1 text-center text-primary transition-all delay-300 duration-700 md:text-left ${
						isVisible ? "translate-y-0 opacity-100" : "translate-y-4 opacity-0"
					}`}
				>
					<p className="font-light text-sm md:text-base lg:text-lg">
						Un quarto di secolo di{" "}
						<span className="font-semibold">eccellenza</span>,{" "}
						<span className="font-semibold">innovazione</span>, e{" "}
						<span className="font-semibold">fiducia</span>
					</p>
				</div>

				{/* Right: Mini stats */}
				<div
					className={`flex items-center gap-6 transition-all delay-500 duration-700 md:gap-8 lg:gap-10 ${
						isVisible ? "translate-x-0 opacity-100" : "translate-x-8 opacity-0"
					}`}
				>
					<Stat label="Clienti" value="12.5K+" />
					<Stat label="Contratti" value="10K+" />
				</div>
			</div>

			{/* Accent lines */}
			{/* <div
				className={`absolute bottom-0 left-0 h-1 bg-primary transition-all delay-700 duration-1000 ${
					isVisible ? "w-24 md:w-32" : "w-0"
				}`}
			/> */}
			{/* <div
				className={`absolute top-0 right-0 h-1 bg-primary transition-all delay-700 duration-1000 ${
					isVisible ? "w-24 md:w-32" : "w-0"
				}`}
			/> */}
		</div>
	);
}

function Stat({ value, label }: { value: string; label: string }) {
	return (
		<div className="flex flex-col items-center gap-0.5">
			<span className="font-bold text-primary text-xl md:text-2xl">
				{value}
			</span>
			<span className="font-medium text-primary text-xs uppercase tracking-wider">
				{label}
			</span>
		</div>
	);
}