"use server";

import { revalidatePath } from "next/cache";
import { writeFile } from "fs/promises";
import path from "path";
import { prisma } from "@/lib/prisma";
import { siteSettings } from "@/lib/services/site-settings";

const MEDIA_DIR = "public/assets/images/media";

export async function saveLogo(formData: FormData): Promise<{ success: boolean; url?: string; error?: string }> {
  try {
    const file = formData.get("file") as File | null;
    if (!file) return { success: false, error: "No file provided" };

    const ext = "png";
    const filename = `logo-${Date.now()}-${Math.random().toString(36).slice(2, 8)}.${ext}`;
    const dir = path.join(process.cwd(), MEDIA_DIR);
    const filePath = path.join(dir, filename);

    const buffer = Buffer.from(await file.arrayBuffer());
    await writeFile(filePath, buffer);

    const url = `/api/media/${filename}`;

    await prisma.websiteSetting.upsert({
      where: { key: "cms_logo" },
      update: { value: url },
      create: { key: "cms_logo", value: url, comment: "Logo (generator)" },
    });

    siteSettings.reload();
    revalidatePath("/", "layout");

    return { success: true, url };
  } catch (e) {
    return { success: false, error: e instanceof Error ? e.message : "Unknown error" };
  }
}