import { notFound } from 'next/navigation';
import ReactMarkdown from 'react-markdown';
import remarkGfm from 'remark-gfm';
import { getTranslations, Locale, getNavigationPaths } from '@/lib/i18n';
import { generateMetadata as generateSEOMetadata } from '@/lib/seo';
import { getNewsArticle, getAvailableLocalesForArticle, checkArticleExists } from '@/lib/markdown';
import Layout from '@/components/Layout';
import LanguageSwitcher from '@/components/LanguageSwitcher';
import Link from 'next/link';

interface NewsDetailPageProps {
    params: {
        locale: Locale;
        id: string;
    };
}

export async function generateStaticParams() {
    const locales = ['zh-CN', 'zh-TW', 'en'];
    const articles = ['ai-transformation-2024', 'cloud-security-best-practices', 'company-expansion-2024'];
    
    const params = [];
    for (const locale of locales) {
        for (const id of articles) {
            params.push({ locale, id });
        }
    }
    return params;
}

export async function generateMetadata({ params }: NewsDetailPageProps) {
    const { locale, id } = params;

    // Check if article exists
    if (!checkArticleExists(id, locale)) {
        return {
            title: 'Article Not Found',
            description: 'The requested article could not be found.',
        };
    }

    const article = await getNewsArticle(id, locale);
    if (!article) {
        return {
            title: 'Article Not Found',
            description: 'The requested article could not be found.',
        };
    }

    return {
        title: article.title,
        description: article.excerpt,
        openGraph: {
            title: article.title,
            description: article.excerpt,
            type: 'article',
            publishedTime: article.date,
            authors: [article.author],
            tags: article.tags,
        },
    };
}

export default async function NewsDetailPage({ params }: NewsDetailPageProps) {
    const { locale, id } = params;

    // Check if article exists in the requested locale
    if (!checkArticleExists(id, locale)) {
        notFound();
    }

    const article = await getNewsArticle(id, locale);
    if (!article) {
        notFound();
    }

    const [common, availableLocales] = await Promise.all([
        getTranslations(locale, 'common'),
        getAvailableLocalesForArticle(id),
    ]);

    const navigationPaths = getNavigationPaths(locale);
    const navigation = [
        {
            name: common.navigation.home,
            href: navigationPaths.find((p) => p.key === 'home')?.path || '/',
        },
        {
            name: common.navigation.products,
            href: navigationPaths.find((p) => p.key === 'products')?.path || '/products',
        },
        {
            name: common.navigation.news,
            href: navigationPaths.find((p) => p.key === 'news')?.path || '/news',
        },
        {
            name: common.navigation.support,
            href: navigationPaths.find((p) => p.key === 'support')?.path || '/support',
        },
        {
            name: common.navigation.about,
            href: navigationPaths.find((p) => p.key === 'about')?.path || '/about',
        },
    ];

    return (
        <Layout locale={locale} navigation={navigation} common={common} data-oid="c6mjboc">
            {/* Breadcrumb */}
            <section className="py-4 px-4 sm:px-6 lg:px-8 bg-gray-50 border-b" data-oid="7s5l-j9">
                <div className="max-w-4xl mx-auto" data-oid="hqsvp79">
                    <nav
                        className="flex items-center space-x-2 text-sm text-gray-600"
                        data-oid="m0w56xh"
                    >
                        <Link
                            href={navigationPaths.find((p) => p.key === 'home')?.path || '/'}
                            className="hover:text-blue-600 transition-colors"
                            data-oid="kpvk_7j"
                        >
                            {common.navigation.home}
                        </Link>
                        <span data-oid="tw5-oe_">/</span>
                        <Link
                            href={navigationPaths.find((p) => p.key === 'news')?.path || '/news'}
                            className="hover:text-blue-600 transition-colors"
                            data-oid=":-tqwq_"
                        >
                            {common.navigation.news}
                        </Link>
                        <span data-oid="o12p947">/</span>
                        <span className="text-gray-900" data-oid="49bdp62">
                            {article.title}
                        </span>
                    </nav>
                </div>
            </section>

            {/* Language Switcher */}
            <section className="py-4 px-4 sm:px-6 lg:px-8 bg-white border-b" data-oid="zmlodji">
                <div className="max-w-4xl mx-auto" data-oid="gxv6myl">
                    <div className="flex items-center justify-between" data-oid="1c10d2u">
                        <div className="flex items-center space-x-2" data-oid="5c7b2mr">
                            <span className="text-sm text-gray-600" data-oid="wrn.7x1">
                                {locale === 'en'
                                    ? 'Available in:'
                                    : locale === 'zh-TW'
                                      ? '可用語言：'
                                      : '可用语言：'}
                            </span>
                            <LanguageSwitcher
                                currentLocale={locale}
                                availableLocales={availableLocales}
                                articleId={id}
                            />
                        </div>

                        {/* Back to News */}
                        <Link
                            href={navigationPaths.find((p) => p.key === 'news')?.path || '/news'}
                            className="text-sm text-blue-600 hover:text-blue-800 flex items-center space-x-1"
                            data-oid="eatue3o"
                        >
                            <svg
                                className="w-4 h-4"
                                fill="none"
                                stroke="currentColor"
                                viewBox="0 0 24 24"
                                data-oid="k:sapi1"
                            >
                                <path
                                    strokeLinecap="round"
                                    strokeLinejoin="round"
                                    strokeWidth={2}
                                    d="M15 19l-7-7 7-7"
                                    data-oid="e06c-co"
                                />
                            </svg>
                            <span data-oid="efqxeqy">
                                {locale === 'en'
                                    ? 'Back to News'
                                    : locale === 'zh-TW'
                                      ? '返回新聞'
                                      : '返回新闻'}
                            </span>
                        </Link>
                    </div>
                </div>
            </section>

            {/* Article Header */}
            <section className="py-12 px-4 sm:px-6 lg:px-8 bg-white" data-oid="h:ik7pu">
                <div className="max-w-4xl mx-auto" data-oid="j8v8ces">
                    <div className="mb-8" data-oid="p.xgl5-">
                        <div className="flex items-center space-x-4 mb-6" data-oid="zsrn6ji">
                            <span
                                className="px-3 py-1 bg-blue-100 text-blue-800 text-sm rounded-full font-medium"
                                data-oid="wy0nqoy"
                            >
                                {article.category}
                            </span>
                            {article.featured && (
                                <span
                                    className="px-3 py-1 bg-red-100 text-red-800 text-sm rounded-full font-medium"
                                    data-oid="x-9lbop"
                                >
                                    {locale === 'en'
                                        ? 'Featured'
                                        : locale === 'zh-TW'
                                          ? '精選'
                                          : '精选'}
                                </span>
                            )}
                        </div>

                        <h1
                            className="text-4xl md:text-5xl font-light leading-tight mb-6 text-gray-900"
                            data-oid="gd_tb.u"
                        >
                            {article.title}
                        </h1>

                        <div
                            className="flex flex-wrap items-center gap-6 text-gray-600 mb-6"
                            data-oid="h1xbibw"
                        >
                            <div className="flex items-center space-x-2" data-oid="hpuafgc">
                                <svg
                                    className="w-5 h-5"
                                    fill="none"
                                    stroke="currentColor"
                                    viewBox="0 0 24 24"
                                    data-oid="1dedyyy"
                                >
                                    <path
                                        strokeLinecap="round"
                                        strokeLinejoin="round"
                                        strokeWidth={2}
                                        d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z"
                                        data-oid="iwixjjh"
                                    />
                                </svg>
                                <span data-oid="4tznx3q">{article.date}</span>
                            </div>

                            <div className="flex items-center space-x-2" data-oid="65jmrbx">
                                <svg
                                    className="w-5 h-5"
                                    fill="none"
                                    stroke="currentColor"
                                    viewBox="0 0 24 24"
                                    data-oid="y9xj5gd"
                                >
                                    <path
                                        strokeLinecap="round"
                                        strokeLinejoin="round"
                                        strokeWidth={2}
                                        d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z"
                                        data-oid="i1u38j6"
                                    />
                                </svg>
                                <span data-oid="m76y57i">{article.author}</span>
                            </div>

                            <div className="flex items-center space-x-2" data-oid="844.7pi">
                                <svg
                                    className="w-5 h-5"
                                    fill="none"
                                    stroke="currentColor"
                                    viewBox="0 0 24 24"
                                    data-oid="re-164m"
                                >
                                    <path
                                        strokeLinecap="round"
                                        strokeLinejoin="round"
                                        strokeWidth={2}
                                        d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"
                                        data-oid="b0q9r7."
                                    />
                                </svg>
                                <span data-oid="49cu0of">{article.readTime}</span>
                            </div>
                        </div>

                        <p
                            className="text-xl text-gray-600 font-light leading-relaxed"
                            data-oid="b2er1ct"
                        >
                            {article.excerpt}
                        </p>
                    </div>

                    {/* Tags */}
                    {article.tags.length > 0 && (
                        <div className="flex flex-wrap gap-2 mb-8" data-oid="i2rwhiz">
                            {article.tags.map((tag) => (
                                <span
                                    key={tag}
                                    className="px-3 py-1 bg-gray-100 text-gray-700 text-sm rounded-full"
                                    data-oid="mo3ug:j"
                                >
                                    #{tag}
                                </span>
                            ))}
                        </div>
                    )}
                </div>
            </section>

            {/* Article Content */}
            <section className="py-12 px-4 sm:px-6 lg:px-8 bg-white" data-oid="d02:vlw">
                <div className="max-w-4xl mx-auto" data-oid=".8y4h8a">
                    <div className="prose prose-lg prose-gray max-w-none" data-oid="blhf5-s">
                        <ReactMarkdown
                            remarkPlugins={[remarkGfm]}
                            components={{
                                h1: ({ children }) => (
                                    <h1
                                        className="text-3xl font-light mb-6 text-gray-900 border-b border-gray-200 pb-4"
                                        data-oid="k2f36kp"
                                    >
                                        {children}
                                    </h1>
                                ),

                                h2: ({ children }) => (
                                    <h2
                                        className="text-2xl font-light mb-4 mt-8 text-gray-900"
                                        data-oid="us4v-ay"
                                    >
                                        {children}
                                    </h2>
                                ),

                                h3: ({ children }) => (
                                    <h3
                                        className="text-xl font-light mb-3 mt-6 text-gray-900"
                                        data-oid="9h758:b"
                                    >
                                        {children}
                                    </h3>
                                ),

                                p: ({ children }) => (
                                    <p
                                        className="mb-4 leading-relaxed text-gray-700"
                                        data-oid="v.5:d5y"
                                    >
                                        {children}
                                    </p>
                                ),

                                ul: ({ children }) => (
                                    <ul
                                        className="mb-4 space-y-2 list-disc list-inside text-gray-700"
                                        data-oid="8tm.vpa"
                                    >
                                        {children}
                                    </ul>
                                ),

                                ol: ({ children }) => (
                                    <ol
                                        className="mb-4 space-y-2 list-decimal list-inside text-gray-700"
                                        data-oid="2_dmi-o"
                                    >
                                        {children}
                                    </ol>
                                ),

                                li: ({ children }) => (
                                    <li className="leading-relaxed" data-oid="p18xbtd">
                                        {children}
                                    </li>
                                ),

                                blockquote: ({ children }) => (
                                    <blockquote
                                        className="border-l-4 border-blue-500 pl-4 py-2 mb-4 bg-blue-50 text-gray-700 italic"
                                        data-oid="letfg8v"
                                    >
                                        {children}
                                    </blockquote>
                                ),

                                code: ({ children }) => (
                                    <code
                                        className="bg-gray-100 px-2 py-1 rounded text-sm font-mono text-gray-800"
                                        data-oid=":rcw03n"
                                    >
                                        {children}
                                    </code>
                                ),

                                pre: ({ children }) => (
                                    <pre
                                        className="bg-gray-900 text-gray-100 p-4 rounded-lg overflow-x-auto mb-4"
                                        data-oid="kkqwbw_"
                                    >
                                        {children}
                                    </pre>
                                ),
                            }}
                            data-oid="gwxptyo"
                        >
                            {article.content}
                        </ReactMarkdown>
                    </div>
                </div>
            </section>

            {/* Article Footer */}
            <section className="py-8 px-4 sm:px-6 lg:px-8 bg-gray-50 border-t" data-oid="a4:0vxi">
                <div className="max-w-4xl mx-auto" data-oid="gs4ey_i">
                    <div
                        className="flex flex-col md:flex-row justify-between items-start md:items-center space-y-4 md:space-y-0"
                        data-oid="utuumme"
                    >
                        <div data-oid="03ew7k3">
                            <p className="text-gray-600 text-sm" data-oid="40k1zhp">
                                {locale === 'en'
                                    ? 'Published on'
                                    : locale === 'zh-TW'
                                      ? '發布於'
                                      : '发布于'}{' '}
                                {article.date}
                            </p>
                            <p className="text-gray-600 text-sm" data-oid="qar67n3">
                                {locale === 'en' ? 'By' : locale === 'zh-TW' ? '作者：' : '作者：'}{' '}
                                {article.author}
                            </p>
                        </div>

                        <div className="flex space-x-4" data-oid="8yznw49">
                            <button
                                className="text-blue-600 hover:text-blue-800 text-sm flex items-center space-x-1"
                                data-oid="gzw87qn"
                            >
                                <svg
                                    className="w-4 h-4"
                                    fill="none"
                                    stroke="currentColor"
                                    viewBox="0 0 24 24"
                                    data-oid="ldlorm8"
                                >
                                    <path
                                        strokeLinecap="round"
                                        strokeLinejoin="round"
                                        strokeWidth={2}
                                        d="M8.684 13.342C8.886 12.938 9 12.482 9 12c0-.482-.114-.938-.316-1.342m0 2.684a3 3 0 110-2.684m0 2.684l6.632 3.316m-6.632-6l6.632-3.316m0 0a3 3 0 105.367-2.684 3 3 0 00-5.367 2.684zm0 9.316a3 3 0 105.367 2.684 3 3 0 00-5.367-2.684z"
                                        data-oid="l34b4tz"
                                    />
                                </svg>
                                <span data-oid="ww8eb3z">
                                    {locale === 'en'
                                        ? 'Share'
                                        : locale === 'zh-TW'
                                          ? '分享'
                                          : '分享'}
                                </span>
                            </button>
                        </div>
                    </div>
                </div>
            </section>
        </Layout>
    );
}