website refactor

apps/website/lib/display-objects/DashboardDateDisplay.ts

@@ -0,0 +1,53 @@
+/**
+ * DashboardDateDisplay
+ * 
+ * Deterministic date formatting for dashboard display.
+ * No Intl.* or toLocale* methods.
+ */
+
+export interface DashboardDateDisplayData {
+  date: string;
+  time: string;
+  relative: string;
+}
+
+/**
+ * Format date for display (deterministic, no Intl)
+ */
+export class DashboardDateDisplay {
+  static format(date: Date): DashboardDateDisplayData {
+    const days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
+    const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
+    
+    const dayName = days[date.getDay()];
+    const month = months[date.getMonth()];
+    const day = date.getDate();
+    const year = date.getFullYear();
+    
+    const hours = date.getHours().toString().padStart(2, '0');
+    const minutes = date.getMinutes().toString().padStart(2, '0');
+    
+    // Calculate relative time (deterministic)
+    const now = new Date();
+    const diffMs = date.getTime() - now.getTime();
+    const diffHours = Math.floor(diffMs / (1000 * 60 * 60));
+    const diffDays = Math.floor(diffHours / 24);
+    
+    let relative: string;
+    if (diffHours < 0) {
+      relative = 'Past';
+    } else if (diffHours === 0) {
+      relative = 'Now';
+    } else if (diffHours < 24) {
+      relative = `${diffHours}h`;
+    } else {
+      relative = `${diffDays}d`;
+    }
+    
+    return {
+      date: `${dayName}, ${month} ${day}, ${year}`,
+      time: `${hours}:${minutes}`,
+      relative,
+    };
+  }
+}