import { PageHeader } from "@/components/admin/form";
import { MEDIA_BUCKET_ID, userStorage } from "@/lib/appwrite-server";
import { requireSessionSecret } from "@/lib/auth";
import { Query } from "appwrite";
import { Upload } from "lucide-react";
import { DeleteButton } from "@/components/admin/delete-button";
import { uploadMedia, deleteMediaFile } from "@/lib/admin-actions";

async function listFiles() {
  try {
    const secret = await requireSessionSecret();
    const res = await userStorage(secret).listFiles({
      bucketId: MEDIA_BUCKET_ID,
      queries: [Query.orderDesc("$createdAt"), Query.limit(100)],
    });
    return res.files;
  } catch {
    return [];
  }
}

function fileViewUrl(id: string) {
  return `${process.env.NEXT_PUBLIC_APPWRITE_ENDPOINT}/storage/buckets/${MEDIA_BUCKET_ID}/files/${id}/view?project=${process.env.NEXT_PUBLIC_APPWRITE_PROJECT_ID}`;
}

export default async function MediaPage() {
  const files = await listFiles();

  async function deleteAction(formData: FormData) {
    "use server";
    const id = String(formData.get("id"));
    await deleteMediaFile(id);
  }

  return (
    <div>
      <PageHeader
        title="Medya kütüphanesi"
        description="Görselleri yükleyin ve URL'lerini kopyalayın."
      />

      <form
        action={uploadMedia}
        encType="multipart/form-data"
        className="mt-6 rounded-2xl border border-dashed border-[var(--border)] bg-white p-6"
      >
        <label className="flex flex-col items-center gap-3 text-center">
          <Upload className="size-8 text-[var(--sky-600)]" />
          <span className="text-sm font-medium text-[var(--navy)]">
            Görsel yüklemek için dosya seçin (max 10 MB)
          </span>
          <input
            name="file"
            type="file"
            accept="image/*"
            required
            className="block max-w-md text-sm"
          />
          <button
            type="submit"
            className="rounded-full bg-[var(--navy)] px-5 py-2 text-sm font-medium text-white transition hover:bg-[var(--navy-700)]"
          >
            Yükle
          </button>
        </label>
      </form>

      <div className="mt-8 grid gap-4 sm:grid-cols-2 lg:grid-cols-4">
        {files.length === 0 && (
          <div className="col-span-full rounded-2xl border border-dashed border-[var(--border)] bg-white p-12 text-center text-sm text-[var(--muted)]">
            Henüz görsel yüklenmemiş.
          </div>
        )}
        {files.map((f) => {
          const url = fileViewUrl(f.$id);
          return (
            <div
              key={f.$id}
              className="overflow-hidden rounded-xl border border-[var(--border)] bg-white"
            >
              {/* eslint-disable-next-line @next/next/no-img-element */}
              <img
                src={url}
                alt={f.name}
                className="aspect-square w-full object-cover"
                loading="lazy"
              />
              <div className="p-3">
                <p className="truncate text-xs font-medium text-[var(--navy)]">
                  {f.name}
                </p>
                <p className="text-[10px] text-[var(--muted)]">
                  {(f.sizeOriginal / 1024).toFixed(0)} KB
                </p>
                <div className="mt-2 flex items-center justify-between gap-2">
                  <a
                    href={url}
                    target="_blank"
                    rel="noopener"
                    className="text-xs text-[var(--sky-600)] hover:text-[var(--navy)]"
                  >
                    Aç ↗
                  </a>
                  <form action={deleteAction}>
                    <input type="hidden" name="id" value={f.$id} />
                    <DeleteButton label="Sil" />
                  </form>
                </div>
                <input
                  readOnly
                  value={url}
                  className="mt-2 w-full truncate rounded-md border border-[var(--border)] bg-[var(--navy-50)] px-2 py-1 text-[10px] text-[var(--muted)]"
                />
              </div>
            </div>
          );
        })}
      </div>
    </div>
  );
}