"use client";

import { useEffect, useState } from "react";
import { useParams } from "next/navigation";
import Image from "next/image";
import Link from "next/link";
import ReactMarkdown from "react-markdown";

export default function ProjectDetailPage() {
  const { id } = useParams();
  const [project, setProject] = useState(null);

  useEffect(() => {
    if (!id) return;
    const url = new URL(`${process.env.NEXT_PUBLIC_API_BASE_URL}/items/projects/${id}`);
    url.searchParams.set(
      "fields",
      "submission_id,title,uploader,category,tags,p_image.filename_disk,p_image.title,p_files.directus_files_id.filename_disk"
    );
    url.searchParams.set("limit", "1");

    fetch(url.toString())
    .then((res) => res.json())
    .then((data) => setProject(data.data))
    .catch(() => setProject(null));
  }, [id]);

  if (!project) {
    return (
      <div className="p-6 max-w-5xl mx-auto">
      <div className="mb-4">
      <Link href="/projects" className="text-accent underline">
      ← Back to Projects
      </Link>
      </div>
      <p className="text-muted-foreground">Loading project…</p>
      </div>
    );
  }

  const imageSrc = project.p_image?.filename_disk
  ? `${process.env.NEXT_PUBLIC_ASSET_URL || "https://forms.lasereverything.net"}/assets/${project.p_image.filename_disk}`
  : null;

  const fileList: string[] = Array.isArray(project.p_files)
  ? project.p_files
  .map((f: any) => f?.directus_files_id?.filename_disk)
  .filter(Boolean)
  : [];

  return (
    <div className="p-6 max-w-5xl mx-auto">
    <style jsx global>{`
      .file-pill {
        display: inline-block;
        font-size: 0.8rem;
        padding: 0.25rem 0.5rem;
        background-color: var(--muted);
        color: var(--foreground);
        border-radius: 0.25rem;
        margin-right: 0.25rem;
        margin-bottom: 0.25rem;
        transition: background-color 0.2s ease;
      }
      .file-pill:hover {
        background-color: #ffde59;
        color: #000;
      }
      `}</style>

      <div className="mb-4">
      <Link href="/projects" className="text-accent underline">
      ← Back to Projects
      </Link>
      </div>

      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
      <div className="md:col-span-1">
      <div className="border rounded overflow-hidden bg-card">
      {imageSrc ? (
        <Image
        src={imageSrc}
        alt={project.p_image?.title || "Project image"}
        width={800}
        height={800}
        className="w-full h-auto object-cover"
        />
      ) : (
        <div className="p-6 text-sm text-muted-foreground">No preview image</div>
      )}
      </div>

      <div className="mt-4">
      <h3 className="text-sm font-semibold mb-2">Files</h3>
      {fileList.length > 0 ? (
        <div className="flex flex-wrap">
        {fileList.map((fname, i) => (
          <a
          key={i}
          className="file-pill"
          href={`${process.env.NEXT_PUBLIC_ASSET_URL || "https://forms.lasereverything.net"}/assets/${fname}`}
          target="_blank"
          rel="noopener noreferrer"
          title={fname}
          >
          {fname}
          </a>
        ))}
        </div>
      ) : (
        <p className="text-xs text-muted-foreground">No files attached.</p>
      )}
      </div>
      </div>

      <div className="md:col-span-2">
      <h1 className="text-2xl font-bold mb-2">{project.title}</h1>
      <p className="text-sm text-muted-foreground mb-1">
      Uploaded by: {project.uploader || "—"}
      </p>
      <p className="text-sm text-muted-foreground mb-2">
      Category: {project.category || "—"}
      </p>
      <div className="flex flex-wrap gap-1">
      {Array.isArray(project.tags) && project.tags.length > 0 ? (
        project.tags.map((tag, i) => (
          <a
          key={i}
          href={`/projects?query=${encodeURIComponent(tag)}`}
          target="_blank"
          rel="noopener noreferrer"
          className="text-xs bg-muted text-foreground rounded px-2 py-0.5 hover:bg-accent hover:text-background transition-colors"
          title={`Search for ${tag}`}
          >
          {tag}
          </a>
        ))
      ) : (
        <span className="text-xs text-muted-foreground">No tags</span>
      )}
      </div>

      {/* Optional long description if you add one later */}
      {project.body ? (
        <div className="prose dark:prose-invert mt-6">
        <ReactMarkdown>{project.body}</ReactMarkdown>
        </div>
      ) : null}
      </div>
      </div>
      </div>
  );
}