"use server";

import { mkdir, writeFile } from "node:fs/promises";
import path from "node:path";
import { revalidatePath } from "next/cache";
import { db, WebsiteSetting } from "@/lib/db";
import { resolveMediaPath } from "@/lib/media-storage";
import { siteSettings } from "@/lib/services/site-settings";

const MEDIA_DIR = resolveMediaPath("logo");

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 =
			file.type === "image/png"
				? "png"
				: file.type === "image/gif"
					? "gif"
					: file.type === "image/jpeg"
						? "jpg"
						: file.type === "image/webp"
							? "webp"
							: "png";
		const filename = `logo-${Date.now()}-${Math.random().toString(36).slice(2, 8)}.${ext}`;
		const baseDir = MEDIA_DIR;
		const filePath = path.resolve(baseDir, filename);
		if (!filePath.startsWith(baseDir + path.sep)) {
			return { success: false, error: "Invalid path" };
		}

		const buffer = Buffer.from(await file.arrayBuffer());
		// eslint-disable-next-line security/detect-non-literal-fs-filename
		await mkdir(baseDir, { recursive: true });
		// eslint-disable-next-line security/detect-non-literal-fs-filename
		await writeFile(filePath, buffer);

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

		await db
			.insert(WebsiteSetting)
			.values({ key: "cms_logo", value: url, comment: "Logo (generator)" })
			.onDuplicateKeyUpdate({ set: { value: url } });

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

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