import type { Metadata } from "next";
import { getTranslations, setRequestLocale } from "next-intl/server";
import {
	Briefcase,
	MapPin,
	Mail,
	Code2,
	Gauge,
	Palette,
	Wrench,
} from "lucide-react";
import { Container, Section } from "@/components/ui/layout";
import { Card } from "@/components/ui/card";
import { buttonClassName } from "@/components/ui/button-variants";
import { Reveal } from "@/components/motion/reveal";
import { siteConfig } from "@/lib/site-config";

/**
 * 关于页渲染策略：ISR 缓存 60 秒。
 * 路由段配置必须是字面量（Next.js 会静态分析）。
 */
export const revalidate = 60;

type AboutPageProps = {
	params: Promise<{ locale: string }>;
};

export async function generateMetadata({
	params,
}: AboutPageProps): Promise<Metadata> {
	const { locale } = await params;
	const t = await getTranslations({ locale, namespace: "About" });

	return {
		title: t("title"),
		description: t("description"),
		alternates: { canonical: `/${locale}/about` },
		openGraph: {
			type: "profile",
			title: t("title"),
			description: t("description"),
			url: `${siteConfig.url}/${locale}/about`,
			images: [{ url: siteConfig.ogImage }],
		},
	};
}

/** 关注方向 —— 图标仅为装饰，语义由文本承载 */
const FOCUS_AREAS = [
	{
		icon: Gauge,
		title: "Web 性能",
		description:
			"关注核心网页指标、渲染路径与打包体积，把「快」当作可度量的工程目标而不是感觉。",
	},
	{
		icon: Code2,
		title: "开发者体验",
		description:
			"好的工具应该让正确的事情变简单。投入最多的地方是构建流程、类型系统与文档。",
	},
	{
		icon: Palette,
		title: "设计系统",
		description:
			"把设计规范翻译成可执行的代码约束，让一致性由类型系统保证，而不是靠代码评审。",
	},
	{
		icon: Wrench,
		title: "工程化实践",
		description:
			"测试策略、CI/CD、可观测性——那些看不见但决定了项目能走多远的基建。",
	},
] as const;

export default async function AboutPage({ params }: AboutPageProps) {
	const { locale } = await params;
	setRequestLocale(locale);

	const t = await getTranslations("About");
	const { author } = siteConfig;

	const facts = [
		{ icon: Briefcase, label: t("role"), value: author.jobTitle },
		{ icon: MapPin, label: t("location"), value: author.location },
		{ icon: Mail, label: t("email"), value: author.email },
	];

	return (
		<>
			{/* 页头 */}
			<Section
				spacing="sm"
				className="border-b border-hairline-soft bg-surface-soft"
			>
				<Container size="narrow">
					<p className="text-micro-uppercase font-semibold uppercase tracking-[0.5px] text-steel">
						{t("eyebrow")}
					</p>
					<h1 className="mt-sm text-heading-1 font-semibold text-ink">
						{t("title")}
					</h1>
					<p className="mt-md max-w-[640px] text-subtitle text-steel text-balance-pretty">
						{t("description")}
					</p>
				</Container>
			</Section>

			<Section spacing="default">
				<Container size="narrow">
					<div className="grid grid-cols-1 gap-xxl lg:grid-cols-[minmax(0,1fr)_280px]">
						{/* 主栏：简介 + 关注方向 */}
						<div className="flex flex-col gap-section">
							<section aria-labelledby="intro-heading">
								<h2
									id="intro-heading"
									className="text-heading-3 font-semibold text-ink"
								>
									{t("introTitle")}
								</h2>

								<div className="mt-md flex flex-col gap-md text-body-md leading-[1.75] text-slate">
									<p>{author.bio}</p>
									<p>
										这个博客用来记录我在日常工作中遇到的问题和解决思路。
										我倾向于写下那些「当时找不到答案、后来自己想明白了」的内容，
										因为这类经验对别人往往也最有价值。
									</p>
									<p>
										写作风格上，我更在意准确而不是完整：与其罗列所有可能性，
										不如把一条路径讲透，并说清楚它为什么成立、在什么情况下会失效。
									</p>
								</div>
							</section>

							<section aria-labelledby="focus-heading">
								<h2
									id="focus-heading"
									className="text-heading-3 font-semibold text-ink"
								>
									{t("techTitle")}
								</h2>
								<p className="mt-xs text-body-sm text-steel">
									{t("techDescription")}
								</p>

								<div className="mt-lg grid grid-cols-1 gap-md sm:grid-cols-2">
									{FOCUS_AREAS.map((area, index) => (
										<Reveal key={area.title} delay={index * 0.05}>
											<Card className="flex h-full flex-col gap-xs" padding="md">
												<area.icon
													className="size-5 text-brand-green-deep"
													aria-hidden="true"
												/>
												<h3 className="text-heading-5 font-semibold text-ink">
													{area.title}
												</h3>
												<p className="text-body-sm text-steel">
													{area.description}
												</p>
											</Card>
										</Reveal>
									))}
								</div>
							</section>
						</div>

						{/* 侧栏：基本信息 + 联系方式 */}
						<aside className="flex flex-col gap-xl">
							<Card
								padding="md"
								variant="feature"
								className="flex flex-col gap-md"
							>
								<h2 className="text-heading-5 font-semibold text-ink">
									基本信息
								</h2>

								<dl className="flex flex-col gap-sm">
									{facts.map((fact) => (
										<div key={fact.label} className="flex items-start gap-sm">
											<fact.icon
												className="mt-[2px] size-4 shrink-0 text-steel"
												aria-hidden="true"
											/>
											<div className="min-w-0">
												<dt className="text-caption text-steel">
													{fact.label}
												</dt>
												<dd className="break-words text-body-sm text-ink">
													{fact.value}
												</dd>
											</div>
										</div>
									))}
								</dl>
							</Card>

							<Card padding="md" className="flex flex-col gap-sm">
								<h2 className="text-heading-5 font-semibold text-ink">
									{t("contactTitle")}
								</h2>
								<p className="text-body-sm text-steel">
									{t("contactDescription")}
								</p>

								<ul className="mt-xs flex flex-col gap-xs">
									{siteConfig.social.map((item) => (
										<li key={item.label}>
											<a
												href={item.href}
												target={
													item.href.startsWith("mailto:") ? undefined : "_blank"
												}
												rel="noopener noreferrer"
												className={buttonClassName({
													variant: "secondary",
													size: "sm",
													className: "w-full justify-start",
												})}
											>
												{item.label}
											</a>
										</li>
									))}
								</ul>
							</Card>
						</aside>
					</div>
				</Container>
			</Section>
		</>
	);
}