feat: Introduce app config to conditionally display file download buttons and remove the related feature modal.

Author: parthsali

app/(main)/academics/PdfViewer.tsx

@@ -3,6 +3,7 @@ import { Star, StarOff, ExternalLink, Download } from "lucide-react";
 import { useEffect, useState } from "react";
 import Link from "next/link";
 import { ActiveFile } from "@/types/file";
+import { appConfig } from "@/lib/app-config";
 
 interface Favorite {
   id: string;
@@ -91,9 +92,11 @@ export default function PdfViewer({ file }: PdfViewerProps) {
               <Star className="h-4 w-4" />
             )}
           </Button>
-          <Button variant="outline" size="sm" onClick={handleDownload}>
-            <Download className="h-4 w-4" />
-          </Button>
+          {appConfig.features.allowFileDownload && (
+            <Button variant="outline" size="sm" onClick={handleDownload}>
+              <Download className="h-4 w-4" />
+            </Button>
+          )}
           <Button variant="outline" size="sm" asChild>
             <Link
               href={`/viewer/${file.id}`}

app/layout.tsx

@@ -5,7 +5,6 @@ import { ThemeProvider } from "@/components/theme-provider";
 import { Analytics } from "@vercel/analytics/next";
 import { SITE_URL } from "@/lib/constants";
 import { FestiveModal } from "@/components/FestiveModal";
-import { FeatureModal } from "@/components/FeatureModal";
 import Script from "next/script";
 import { Popunder, SocialBar } from "@/components/ads";
 
@@ -97,10 +96,6 @@ export default function RootLayout({
             storageKey="diwali_2025_modal"
             expireDate="2025-10-23"
           />
-          <FeatureModal
-            storageKey="feature-download-seen"
-            expireDate="2026-01-15"
-          />
           <Analytics />
         </ThemeProvider>
       </body>

app/viewer/[fileId]/viewer-client.tsx

@@ -18,6 +18,7 @@ import ChatPanel from "@/components/viewer/ChatPanel";
 import { Star, StarOff, MessageSquare, PanelRightClose, Download } from "lucide-react";
 import Image from "next/image";
 import Link from "next/link";
+import { appConfig } from "@/lib/app-config";
 
 interface ViewerClientProps {
   fileDetails: {
@@ -128,21 +129,23 @@ export default function ViewerClient({ fileDetails }: ViewerClientProps) {
               </TooltipContent>
             </Tooltip>
 
-            <Tooltip>
-              <TooltipTrigger asChild>
-                <Button
-                  className="text-sm h-10 w-10"
-                  variant="outline"
-                  size="icon"
-                  onClick={handleDownload}
-                >
-                  <Download className="h-4 w-4" />
-                </Button>
-              </TooltipTrigger>
-              <TooltipContent>
-                Download PDF
-              </TooltipContent>
-            </Tooltip>
+            {appConfig.features.allowFileDownload && (
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <Button
+                    className="text-sm h-10 w-10"
+                    variant="outline"
+                    size="icon"
+                    onClick={handleDownload}
+                  >
+                    <Download className="h-4 w-4" />
+                  </Button>
+                </TooltipTrigger>
+                <TooltipContent>
+                  Download PDF
+                </TooltipContent>
+              </Tooltip>
+            )}
           </TooltipProvider>
 
           <Button

lib/app-config.ts

@@ -0,0 +1,10 @@
+
+export const appConfig = {
+    features: {
+        /**
+         * Enable or disable the file download option in viewers.
+         * If false, the download button will be hidden.
+         */
+        allowFileDownload: false,
+    },
+};