Add favicon upload option in admin panel

src/actions/save-favicon.ts

@@ -0,0 +1,84 @@
+"use server";
+
+import { revalidatePath } from "next/cache";
+import { mkdir, writeFile, unlink } from "fs/promises";
+import path from "path";
+import { prisma } from "@/lib/prisma";
+import { siteSettings } from "@/lib/services/site-settings";
+
+const FAVICON_DIR = "public/assets/images/media/favicon";
+const MAX_SIZE = 2 * 1024 * 1024; // 2MB
+const ALLOWED = ["image/png", "image/jpeg", "image/gif", "image/webp", "image/x-icon", "image/svg+xml"];
+
+export async function saveFavicon(formData: FormData): Promise<{ success: boolean; url?: string; error?: string }> {
+  try {
+    const file = formData.get("file") as File | null;
+    if (!file || file.size === 0) return { success: false, error: "No file provided" };
+    if (file.size > MAX_SIZE) return { success: false, error: "File too large (max 2MB)" };
+    if (!ALLOWED.includes(file.type)) return { success: false, error: "Invalid file type. Allowed: PNG, JPEG, GIF, WebP, ICO, SVG" };
+
+    const mimeExt: Record<string, string> = {
+      "image/png": "png", "image/jpeg": "jpg", "image/gif": "gif",
+      "image/webp": "webp", "image/x-icon": "ico", "image/svg+xml": "svg",
+    };
+    const ext = mimeExt[file.type] ?? "png";
+    const filename = `favicon-${Date.now()}.${ext}`;
+    const dir = path.join(process.cwd(), FAVICON_DIR);
+    const filePath = path.join(dir, filename);
+
+    const buffer = Buffer.from(await file.arrayBuffer());
+    await mkdir(dir, { recursive: true });
+    await writeFile(filePath, buffer);
+
+    const url = `/api/media/favicon/${filename}`;
+
+    // Remove old favicon file if it exists
+    const oldUrl = await siteSettings.get("cms_favicon");
+    if (oldUrl && oldUrl.startsWith("/api/media/favicon/")) {
+      const oldName = oldUrl.replace("/api/media/favicon/", "");
+      if (!oldName.includes("..") && !oldName.includes("/")) {
+        try {
+          await unlink(path.join(dir, oldName));
+        } catch { /* ignore if file doesn't exist */ }
+      }
+    }
+
+    await prisma.websiteSetting.upsert({
+      where: { key: "cms_favicon" },
+      update: { value: url },
+      create: { key: "cms_favicon", value: url, comment: "Favicon URL" },
+    });
+
+    siteSettings.reload();
+    revalidatePath("/", "layout");
+    revalidatePath("/admin/favicon");
+
+    return { success: true, url };
+  } catch (e) {
+    return { success: false, error: e instanceof Error ? e.message : "Unknown error" };
+  }
+}
+
+export async function deleteFavicon(): Promise<{ success: boolean; error?: string }> {
+  try {
+    const oldUrl = await siteSettings.get("cms_favicon");
+    if (oldUrl && oldUrl.startsWith("/api/media/favicon/")) {
+      const dir = path.join(process.cwd(), FAVICON_DIR);
+      const oldName = oldUrl.replace("/api/media/favicon/", "");
+      if (!oldName.includes("..") && !oldName.includes("/")) {
+        try {
+          await unlink(path.join(dir, oldName));
+        } catch { /* ignore */ }
+      }
+    }
+
+    await prisma.websiteSetting.delete({ where: { key: "cms_favicon" } }).catch(() => {});
+    siteSettings.reload();
+    revalidatePath("/", "layout");
+    revalidatePath("/admin/favicon");
+
+    return { success: true };
+  } catch (e) {
+    return { success: false, error: e instanceof Error ? e.message : "Unknown error" };
+  }
+}