feat: add relative time formatting for createdAt in KIND20Card and NoteCard components

components/KIND20Card.tsx

@@ -15,6 +15,8 @@ import Image from "next/image"
 import CardOptionsDropdown from "./CardOptionsDropdown"
 import { renderTextWithLinkedTags } from "@/utils/textUtils"
 import { getProxiedImageUrl } from "@/utils/utils"
+import { formatRelativeTime } from "@/utils/dateUtils"
+import { Clock, UploadCloud } from "lucide-react"
 
 // Function to extract all images from a kind 20 event's imeta tags
 const extractImagesFromEvent = (tags: string[][]): string[] => {
@@ -197,11 +199,47 @@ const KIND20Card: React.FC<KIND20CardProps> = ({
               </div>
             </div>
           </CardContent>
-          <CardFooter>
-            <div className="grid grid-cols-1">
-              <small className="text-muted">{createdAt.toLocaleString()}</small>
-              {uploadedVia && <small className="text-muted">Uploaded via {uploadedVia}</small>}
+          <CardFooter className="flex flex-row items-center justify-between">
+            <div className="flex flex-col text-sm text-muted-foreground">
+              <div className="flex items-center">
+                <Clock className="h-4 w-4 mr-1" />
+                <span>{formatRelativeTime(createdAt)}</span>
+              </div>
+              
+              {uploadedVia && (
+                <div className="flex items-center mt-1">
+                  {/* <svg 
+                    xmlns="http://www.w3.org/2000/svg" 
+                    className="h-4 w-4 mr-1" 
+                    fill="none" 
+                    viewBox="0 0 24 24" 
+                    stroke="currentColor"
+                  >
+                    <path 
+                      strokeLinecap="round" 
+                      strokeLinejoin="round" 
+                      strokeWidth={1.5} 
+                      d="M7 16a4 4 0 01-.88-7.903A5 5 0 1115.9 6L16 6a5 5 0 011 9.9M15 13l-3-3m0 0l-3 3m3-3v12" 
+                    />
+                  </svg> */}
+                  <UploadCloud className="h-4 w-4 mr-1" />
+                  <span>via {uploadedVia}</span>
+                </div>
+              )}
             </div>
+            
+            <TooltipProvider>
+              <Tooltip>
+                <TooltipTrigger asChild>
+                  <div className="text-xs text-muted-foreground/70 hover:text-muted-foreground cursor-help">
+                    {createdAt.toLocaleString()}
+                  </div>
+                </TooltipTrigger>
+                <TooltipContent side="bottom">
+                  <p>Full timestamp</p>
+                </TooltipContent>
+              </Tooltip>
+            </TooltipProvider>
           </CardFooter>
         </Card>
       </div>

components/NoteCard.tsx

@@ -31,6 +31,8 @@ import { Event as NostrEvent } from "nostr-tools";
 import ZapButton from './ZapButton';
 import CardOptionsDropdown from './CardOptionsDropdown';
 import { renderTextWithLinkedTags } from '@/utils/textUtils';
+import { Clock } from 'lucide-react';
+import { formatRelativeTime } from '@/utils/dateUtils';
 
 interface NoteCardProps {
   pubkey: string;
@@ -155,8 +157,26 @@ const NoteCard: React.FC<NoteCardProps> = ({ pubkey, text, eventId, tags, event,
             </div>
           </div>
         </CardContent>
-        <CardFooter>
-          <small className="text-muted">{createdAt.toLocaleString()}</small>
+        <CardFooter className="flex flex-row items-center justify-between">
+          <div className="flex flex-col text-sm text-muted-foreground">
+            <div className="flex items-center">
+              <Clock className="h-4 w-4 mr-1" />
+              <span>{formatRelativeTime(createdAt)}</span>
+            </div>
+          </div>
+          
+          <TooltipProvider>
+            <Tooltip>
+              <TooltipTrigger asChild>
+                <div className="text-xs text-muted-foreground/70 hover:text-muted-foreground cursor-help">
+                  {createdAt.toLocaleString()}
+                </div>
+              </TooltipTrigger>
+              <TooltipContent side="bottom">
+                <p>Full timestamp</p>
+              </TooltipContent>
+            </Tooltip>
+          </TooltipProvider>
         </CardFooter>
       </Card>
     </>

utils/dateUtils.ts

@@ -0,0 +1,67 @@
+/**
+ * Formats a date into a readable format
+ * 
+ * Examples:
+ * - Just now (less than 1 minute ago)
+ * - 5 minutes ago
+ * - 2 hours ago
+ * - Yesterday at 2:30 PM
+ * - May 25 at 3:45 PM
+ * - May 25, 2024 at 3:45 PM (if not current year)
+ */
+export function formatRelativeTime(date: Date): string {
+  const now = new Date();
+  const diffInSeconds = Math.floor((now.getTime() - date.getTime()) / 1000);
+  
+  // Just now - less than 1 minute
+  if (diffInSeconds < 60) {
+    return 'Just now';
+  }
+  
+  // Minutes ago - less than 1 hour
+  if (diffInSeconds < 3600) {
+    const minutes = Math.floor(diffInSeconds / 60);
+    return `${minutes} ${minutes === 1 ? 'minute' : 'minutes'} ago`;
+  }
+  
+  // Hours ago - less than 24 hours
+  if (diffInSeconds < 86400) {
+    const hours = Math.floor(diffInSeconds / 3600);
+    return `${hours} ${hours === 1 ? 'hour' : 'hours'} ago`;
+  }
+  
+  // Format the time part (e.g., "3:45 PM")
+  const timeFormatted = date.toLocaleTimeString([], { 
+    hour: 'numeric', 
+    minute: '2-digit',
+    hour12: true 
+  });
+  
+  // Yesterday - less than 48 hours, but different calendar day
+  if (diffInSeconds < 172800 && 
+      date.getDate() === now.getDate() - 1 && 
+      date.getMonth() === now.getMonth() && 
+      date.getFullYear() === now.getFullYear()) {
+    return `Yesterday at ${timeFormatted}`;
+  }
+  
+  // Format the date part
+  const isCurrentYear = date.getFullYear() === now.getFullYear();
+  
+  if (isCurrentYear) {
+    // Same year - show month and day (e.g., "May 25 at 3:45 PM")
+    const dateFormatted = date.toLocaleDateString([], { 
+      month: 'short', 
+      day: 'numeric' 
+    });
+    return `${dateFormatted} at ${timeFormatted}`;
+  } else {
+    // Different year - show full date (e.g., "May 25, 2024 at 3:45 PM")
+    const dateFormatted = date.toLocaleDateString([], { 
+      month: 'short', 
+      day: 'numeric',
+      year: 'numeric'
+    });
+    return `${dateFormatted} at ${timeFormatted}`;
+  }
+}