"use client";

import { useEffect, useState } from "react";
import Image from "next/image";
import { getListArticle } from "@/service/article";
import Link from "next/link";
import { getAdvertise } from "@/service/advertisement";

type Article = {
  id: number;
  title: string;
  description: string;
  createdAt: string;
  createdByName: string;
  customCreatorName: string;
  thumbnailUrl: string;
  categories: { title: string }[];
};

type Advertise = {
  id: number;
  title: string;
  description: string;
  placement: string;
  contentFileUrl: string;
  redirectLink: string;
};

export default function HeaderNews() {
  const [articles, setArticles] = useState<Article[]>([]);

  const [bannerAd, setBannerAd] = useState<Advertise | null>(null);

  useEffect(() => {
    initStateAdver();
  }, []);

  async function initStateAdver() {
    const req = {
      limit: 100,
      page: 1,
      sort: "desc",
      sortBy: "created_at",
      isPublish: true,
    };

    try {
      const res = await getAdvertise(req);
      const data: Advertise[] = res?.data?.data || [];

      // filter iklan dengan placement = "banner"
      const banner = data.find((ad) => ad.placement === "banner");

      if (banner) {
        setBannerAd(banner);
      }
    } catch (err) {
      console.error("Error fetching advertisement:", err);
    }
  }

  useEffect(() => {
    fetchArticles();
  }, []);

  async function fetchArticles() {
    try {
      const req = {
        limit: "4",
        page: 1,
        search: "",
        categorySlug: "",
        sort: "desc",
        isPublish: true,
        sortBy: "created_at",
      };
      const res = await getListArticle(req);
      setArticles(res?.data?.data || []);
    } catch (error) {
      console.error("Gagal memuat artikel:", error);
    }
  }

  if (articles.length === 0) {
    return <p className="text-center">Belum ada artikel.</p>;
  }

  return (
    <div className="max-w-7xl mx-auto">
      <div className="py-6 grid grid-cols-1 md:grid-cols-2 gap-4 h-[600px]">
        {/* Kiri - berita utama */}
        <div className="relative overflow-hidden h-full">
          <Link className="flex" href={`/detail/${articles[0]?.id}`}>
            <Image
              src={articles[0]?.thumbnailUrl || "/dummy.jpg"}
              alt={articles[0]?.title || "No Title"}
              fill
              className="object-cover"
            />
            <div className="absolute inset-0 bg-gradient-to-t from-black/70 to-transparent"></div>
            <div className="absolute bottom-4 left-4 right-4 text-white">
              <span className="bg-black/70 text-xs px-2 py-1 rounded">
                {articles[0]?.categories?.[0]?.title || "Uncategorized"}
              </span>
              <h2 className="text-2xl font-bold mt-2">{articles[0]?.title}</h2>
              <p className="text-sm mt-1">
                <span className="font-semibold">
                  {articles[0]?.customCreatorName || articles[0]?.createdByName}
                </span>{" "}
                •{" "}
                {articles[0]?.createdAt &&
                  new Date(articles[0].createdAt).toLocaleDateString("id-ID", {
                    day: "numeric",
                    month: "long",
                    year: "numeric",
                  })}
              </p>
            </div>
          </Link>
        </div>

        {/* Kanan - 3 berita */}
        <div className="grid grid-rows-2 gap-2 h-full">
          {/* Atas: 2 berita kecil */}
          <div className="grid grid-cols-2 gap-4">
            {[articles[1], articles[2]].map(
              (item, idx) =>
                item && (
                  <div
                    key={item.id || `dummy-${idx}`}
                    className="relative overflow-hidden"
                  >
                    <Link className="flex" href={`/detail/${item?.id}`}>
                      <Image
                        src={item.thumbnailUrl || "/dummy.jpg"}
                        alt={item.title || "No Title"}
                        fill
                        className="object-cover"
                      />
                      <div className="absolute inset-0 bg-gradient-to-t from-black/70 to-transparent"></div>
                      <div className="absolute bottom-2 left-2 right-2 text-white">
                        <span className="bg-black/70 text-[10px] px-2 py-1 rounded">
                          {item.categories?.[0]?.title || "Uncategorized"}
                        </span>
                        <h3 className="text-sm font-semibold mt-1 line-clamp-2">
                          {item.title}
                        </h3>
                        <p className="text-[10px]">
                          <span className="font-semibold">
                            {item?.customCreatorName || item.createdByName}
                          </span>{" "}
                          •{" "}
                          {item.createdAt &&
                            new Date(item.createdAt).toLocaleDateString(
                              "id-ID",
                              {
                                day: "numeric",
                                month: "short",
                                year: "numeric",
                              }
                            )}
                        </p>
                      </div>
                    </Link>
                  </div>
                )
            )}
          </div>

          {/* Bawah: 1 berita besar */}
          {articles[3] && (
            <div className="relative overflow-hidden">
              <Link className="flex" href={`/detail/${articles[3]?.id}`}>
                <Image
                  src={articles[3]?.thumbnailUrl || "/dummy.jpg"}
                  alt={articles[3]?.title || "No Title"}
                  fill
                  className="object-cover"
                />
                <div className="absolute inset-0 bg-gradient-to-t from-black/70 to-transparent"></div>
                <div className="absolute bottom-2 left-2 right-2 text-white">
                  <span className="bg-black/70 text-xs px-2 py-1 rounded">
                    {articles[3]?.categories?.[0]?.title || "Uncategorized"}
                  </span>
                  <h3 className="text-base font-semibold mt-1">
                    {articles[3]?.title}
                  </h3>
                  <p className="text-xs">
                    <span className="font-semibold">
                      {articles[3]?.createdByName}
                    </span>{" "}
                    •{" "}
                    {articles[3]?.createdAt &&
                      new Date(articles[3].createdAt).toLocaleDateString(
                        "id-ID",
                        {
                          day: "numeric",
                          month: "long",
                          year: "numeric",
                        }
                      )}
                  </p>
                </div>
              </Link>
            </div>
          )}
        </div>
      </div>

      {/* Banner bawah */}
      <div className="relative mt-10 mb-2 flex justify-center mx-8 border my-8 h-[350px] overflow-hidden bg-white">
        {bannerAd ? (
          <a
            href={bannerAd.redirectLink}
            target="_blank"
            rel="noopener noreferrer"
            className="block w-full"
          >
            <div className="relative w-full h-[350px] flex justify-center">
              <Image
                src={bannerAd.contentFileUrl}
                alt={bannerAd.title || "Iklan Banner"}
                width={1200}
                height={350}
                className="object-contain w-full h-full"
              />
            </div>
          </a>
        ) : (
          <Image
            src="/image-kolom.png"
            alt="Berita Utama"
            width={1200}
            height={188}
            className="object-contain w-full h-[188px]"
          />
        )}
      </div>
    </div>
  );
}