Fix: Bounty Countdown Timer Component (Issue #826)

frontend/src/components/bounty/BountyCard.tsx

@@ -4,7 +4,8 @@ import { motion } from 'framer-motion';
 import { GitPullRequest, Clock } from 'lucide-react';
 import type { Bounty } from '../../types/bounty';
 import { cardHover } from '../../lib/animations';
-import { timeLeft, formatCurrency, LANG_COLORS } from '../../lib/utils';
+import { formatCurrency, LANG_COLORS } from '../../lib/utils';
+import { BountyCountdownTimer } from './BountyCountdownTimer';
 
 function TierBadge({ tier }: { tier: string }) {
   const styles: Record<string, string> = {
@@ -111,10 +112,7 @@ export function BountyCard({ bounty }: BountyCardProps) {
             {bounty.submission_count} PRs
           </span>
           {bounty.deadline && (
-            <span className="inline-flex items-center gap-1">
-              <Clock className="w-3.5 h-3.5" />
-              {timeLeft(bounty.deadline)}
-            </span>
+            <BountyCountdownTimer deadline={bounty.deadline} />
           )}
         </div>
       </div>

frontend/src/components/bounty/BountyCountdownTimer.tsx

@@ -0,0 +1,64 @@
+import React, { useState, useEffect } from 'react';
+import { Clock } from 'lucide-react';
+
+interface BountyCountdownTimerProps {
+  deadline: string;
+}
+
+export function BountyCountdownTimer({ deadline }: BountyCountdownTimerProps) {
+  const [timeLeft, setTimeLeft] = useState(calculateTimeLeft(deadline));
+
+  useEffect(() => {
+    const timer = setInterval(() => {
+      setTimeLeft(calculateTimeLeft(deadline));
+    }, 1000);
+
+    return () => clearInterval(timer);
+  }, [deadline]);
+
+  if (timeLeft.isExpired) {
+    return (
+      <span className="inline-flex items-center gap-1 text-status-error font-mono text-xs font-medium">
+        <Clock className="w-3.5 h-3.5" />
+        Expired
+      </span>
+    );
+  }
+
+  const totalHours = timeLeft.days * 24 + timeLeft.hours;
+  let colorClass = 'text-text-muted'; // default
+
+  if (totalHours < 1) {
+    colorClass = 'text-status-error'; // urgent (< 1 hr)
+  } else if (totalHours < 24) {
+    colorClass = 'text-status-warning'; // warning (< 24 hr)
+  }
+
+  const parts = [];
+  if (timeLeft.days > 0) parts.push(`${timeLeft.days}d`);
+  if (timeLeft.hours > 0 || timeLeft.days > 0) parts.push(`${timeLeft.hours}h`);
+  parts.push(`${timeLeft.minutes}m`);
+
+  return (
+    <span className={`inline-flex items-center gap-1 font-mono text-xs font-medium ${colorClass}`}>
+      <Clock className="w-3.5 h-3.5" />
+      {parts.join(' ')}
+    </span>
+  );
+}
+
+function calculateTimeLeft(deadline: string) {
+  const difference = new Date(deadline).getTime() - new Date().getTime();
+
+  if (difference <= 0) {
+    return { days: 0, hours: 0, minutes: 0, seconds: 0, isExpired: true };
+  }
+
+  return {
+    days: Math.floor(difference / (1000 * 60 * 60 * 24)),
+    hours: Math.floor((difference / (1000 * 60 * 60)) % 24),
+    minutes: Math.floor((difference / 1000 / 60) % 60),
+    seconds: Math.floor((difference / 1000) % 60),
+    isExpired: false,
+  };
+}

frontend/src/components/bounty/BountyDetail.tsx

@@ -3,9 +3,10 @@ import { Link, useNavigate } from 'react-router-dom';
 import { motion } from 'framer-motion';
 import { ArrowLeft, Clock, GitPullRequest, ExternalLink, Loader2, Check, Copy } from 'lucide-react';
 import type { Bounty } from '../../types/bounty';
-import { timeLeft, timeAgo, formatCurrency, LANG_COLORS } from '../../lib/utils';
+import { timeAgo, formatCurrency, LANG_COLORS } from '../../lib/utils';
 import { useAuth } from '../../hooks/useAuth';
 import { SubmissionForm } from './SubmissionForm';
+import { BountyCountdownTimer } from './BountyCountdownTimer';
 import { fadeIn } from '../../lib/animations';
 
 interface BountyDetailProps {
@@ -138,9 +139,7 @@ export function BountyDetail({ bounty }: BountyDetailProps) {
             {bounty.deadline && (
               <div className="flex items-center justify-between text-sm">
                 <span className="text-text-muted">Deadline</span>
-                <span className="font-mono text-status-warning inline-flex items-center gap-1">
-                  <Clock className="w-3.5 h-3.5" /> {timeLeft(bounty.deadline)}
-                </span>
+                <BountyCountdownTimer deadline={bounty.deadline} />
               </div>
             )}
             <div className="flex items-center justify-between text-sm">