"use client";

import Link from "next/link";
import { Badge } from "@/components/ui/badge";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
import type { PublicArticle } from "@/lib/articles-public";
import {
  NEWS_SERVICES_TAB_ORDER,
  NEWS_TAB_LABEL,
  type NewsServicesTab,
} from "@/constants/news-services";
import { formatDate } from "@/utils/global";
import ArticleThumbnail from "@/components/landing-page/article-thumbnail";

const BADGE_COLORS = [
  "bg-red-600",
  "bg-yellow-500",
  "bg-yellow-600",
  "bg-[#0f3b63]",
];

function firstTag(tags: string | undefined): string {
  if (!tags?.trim()) return "";
  const t = tags
    .split(",")
    .map((s) => s.trim())
    .filter(Boolean)[0];
  return t ?? "";
}

function articleHref(a: PublicArticle) {
  return `/news/detail/${a.id}-${a.slug}`;
}

type Props = {
  id?: string;
  title: string;
  articlesByTab: Record<NewsServicesTab, PublicArticle[]>;
  showViews?: boolean;
  exploreHref?: string;
  exploreLabel?: string;
};

export default function NewsServicesArticleSection({
  id,
  title,
  articlesByTab,
  showViews,
  exploreHref = "#konten-terpopuler",
  exploreLabel = "Lihat konten terpopuler",
}: Props) {
  const defaultTab = NEWS_SERVICES_TAB_ORDER[0];

  return (
    <section id={id} className="py-20">
      <div className="container mx-auto px-6">
        <div className="mb-12 flex flex-col items-center">
          <h2 className="mb-6 text-3xl font-bold">{title}</h2>

          <Tabs defaultValue={defaultTab} className="w-full">
            <div className="relative w-full pb-3">
              <div className="flex justify-center">
                <TabsList
                  className="gap-8 bg-transparent p-0"
                  variant={"line"}
                >
                  {NEWS_SERVICES_TAB_ORDER.map((tab) => (
                    <TabsTrigger
                      key={tab}
                      value={tab}
                      className="px-0 pb-2 data-[state=active]:text-[#b07c18]"
                    >
                      {NEWS_TAB_LABEL[tab]}
                    </TabsTrigger>
                  ))}
                </TabsList>
              </div>

              <Link
                href={exploreHref}
                className="absolute top-1/2 right-0 hidden -translate-y-1/2 cursor-pointer text-sm text-muted-foreground hover:text-black md:block"
              >
                {exploreLabel}
              </Link>
            </div>

            {NEWS_SERVICES_TAB_ORDER.map((tab) => (
              <TabsContent key={tab} value={tab} className="mt-12">
                <CardGrid
                  articles={articlesByTab[tab] ?? []}
                  showViews={showViews}
                />
              </TabsContent>
            ))}
          </Tabs>
        </div>
      </div>
    </section>
  );
}

function CardGrid({
  articles,
  showViews,
}: {
  articles: PublicArticle[];
  showViews?: boolean;
}) {
  if (articles.length === 0) {
    return (
      <p className="text-center text-muted-foreground">
        Belum ada konten yang dipublikasikan untuk tab ini.
      </p>
    );
  }

  return (
    <div className="grid grid-cols-1 gap-8 sm:grid-cols-2 lg:grid-cols-4">
      {articles.map((item) => {
        const badgeClass = BADGE_COLORS[item.id % BADGE_COLORS.length];
        const category =
          item.categoryName?.trim() || "Berita";
        const tag = firstTag(item.tags);
        const dateSrc = item.publishedAt || item.createdAt;

        return (
          <Link
            key={item.id}
            href={articleHref(item)}
            className="block overflow-hidden rounded-2xl bg-white shadow-sm transition-all duration-300 hover:shadow-lg"
          >
            <div className="relative h-[220px]">
              <ArticleThumbnail
                src={item.thumbnailUrl}
                alt={item.title}
                sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 25vw"
              />
            </div>

            <div className="space-y-3 p-5">
              <div className="flex flex-wrap items-center gap-3">
                <Badge
                  className={`${badgeClass} px-2 py-1 text-xs text-white`}
                >
                  {category}
                </Badge>

                {tag ? (
                  <span className="text-xs text-muted-foreground">{tag}</span>
                ) : null}
              </div>

              <p className="text-xs text-muted-foreground">
                {formatDate(dateSrc)}
                {showViews && item.viewCount != null ? (
                  <span className="ml-2">· {item.viewCount} tayangan</span>
                ) : null}
              </p>

              <h3 className="line-clamp-3 text-sm font-semibold leading-snug transition hover:text-[#b07c18]">
                {item.title}
              </h3>
            </div>
          </Link>
        );
      })}
    </div>
  );
}