"use client";
import { Skeleton } from "@/components/ui/skeleton";
import React, { useEffect, useState } from "react";
import ReactMarkdown from "react-markdown";
import Head from "next/head";

const Page = ({ params }: { params: { slug: string } }) => {
  const { slug } = params;
  const [page, setPage] = useState<{ title: string; content: string } | null>(
    null
  );
  const [loading, setLoading] = useState(true);
  const [notFound, setNotFound] = useState(false);

  useEffect(() => {
    const fetchPage = async () => {
      try {
        const response = await fetch(`/api/mdx/pages/${slug}`);
        if (response.ok) {
          const data = await response.json();
          setPage(data);
          return (document.title = `${data.title} Change Log - SVRJS`);
        } else {
          if (response.status === 404) {
            setNotFound(true);
            return (document.title = "404 Not Found");
          }
        }
      } catch (error) {
        console.error("Failed to load page", error);
        setNotFound(true);
      } finally {
        setLoading(false);
      }
    };

    fetchPage();
  }, [slug]);

  if (loading) {
    return (
      <>
        <head>
          <title>Mods Change Logs - SVRJS</title>
        </head>
        <section className="wrapper container py-24 md:py-28 gap-4 flex flex-col">
          <div className="mb-3">
            <Skeleton className="w-[400px] h-[50px] rounded-md" />
          </div>
          <div className="flex flex-col gap-4">
            <Skeleton className="w-[300px] h-[30px] rounded-md" />
            <Skeleton className="w-[200px] h-[20px] rounded-md" />
            <Skeleton className="w-[200px] h-[20px] rounded-md" />
            <Skeleton className="w-[200px] h-[20px] rounded-md" />
          </div>
        </section>
      </>
    );
  }

  if (notFound) {
    return (
      <section id="404error" className="flex-center flex-col wrapper container">
        <h1 className="text-3xl md:text-5xl text-center">
          <span className="text-red-500">404</span> Page not Found
        </h1>
        <p className="text-lg mt-3 text-muted-foreground">
          Please return back to Home
        </p>
      </section>
    );
  }

  if (!page) {
    return null;
  }

  return (
    <>
      <head>
        <title>{page.title} Changelog - SVRJS</title>
        <meta
          name="description"
          content={`Keep track of the latest updates and improvements for ${page.title} with our comprehensive change log. Discover new features, bug fixes, and enhancements for each release of this SVR.JS mod.`}
        />
        <meta name="viewport" content="width=device-width, initial-scale=1" />

        <meta property="og:title" content={`${page.title} Changelog - SVRJS`} />
        <meta
          property="og:description"
          content={`Keep track of the latest updates and improvements for ${page.title} with our comprehensive change log. Discover new features, bug fixes, and enhancements for each release of this SVR.JS mod.`}
        />
        <meta property="og:type" content="website" />
        <meta
          property="og:url"
          content={`https://svrjs.org/changelogs/${slug}`}
        />
        <meta
          property="og:image"
          content="https://svrjs.vercel.app/metadata/svrjs-cover.png"
        />
        <title>Documentation - SVRJS</title>
        <meta name="twitter:card" content="summary_large_image" />
        <meta
          name="twitter:title"
          content={`${page.title} Changelog - SVRJS`}
        />
        <meta
          name="twitter:description"
          content={`Keep track of the latest updates and improvements for ${page.title} with our comprehensive change log. Discover new features, bug fixes, and enhancements for each release of this SVR.JS mod.`}
        />
        <meta
          name="twitter:image"
          content="https://svrjs.vercel.app/metadata/svrjs-cover.png"
        />
      </head>

      <section className="wrapper container py-24 md:py-28 gap-2 flex flex-col">
        <h1 className="text-3xl md:text-5xl pb-1 md:pb-2 font-bold text-black dark:bg-clip-text dark:text-transparent dark:bg-gradient-to-b dark:from-white dark:to-neutral-400">
          {page.title} Change Log
        </h1>
        <ReactMarkdown className="prose max-w-full md:prose-lg dark:prose-invert">
          {page.content}
        </ReactMarkdown>
      </section>
    </>
  );
};

export default Page;
