From b10be8150528540f133cde0eb66f3df3f746cb7c Mon Sep 17 00:00:00 2001
From: Zichao Lin <earthjasonlin@163.com>
Date: Mon, 6 Jul 2026 08:20:14 +0800
Subject: [PATCH] fix(admin-invites): display times in Asia/Shanghai (CST)
 instead of UTC

---
 app/routers/web.py               | 16 +++++++++++++++-
 app/templates/admin_invites.html |  6 +++---
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/app/routers/web.py b/app/routers/web.py
index cb0ba92..218572e 100644
--- a/app/routers/web.py
+++ b/app/routers/web.py
@@ -1,4 +1,4 @@
-from datetime import datetime
+from datetime import datetime, timezone, timedelta
 from pathlib import Path
 from uuid import uuid4
 
@@ -35,6 +35,20 @@ def _country_flag(code: str) -> str:
 
 templates.env.filters["flag"] = _country_flag
 
+_CST = timezone(timedelta(hours=8))
+
+
+def _to_local(dt: datetime) -> datetime:
+    """Convert UTC datetime to Asia/Shanghai (CST)."""
+    if dt is None:
+        return None
+    if dt.tzinfo is None:
+        dt = dt.replace(tzinfo=timezone.utc)
+    return dt.astimezone(_CST)
+
+
+templates.env.filters["to_local"] = _to_local
+
 
 def _redirect(url: str) -> RedirectResponse:
     return RedirectResponse(url, status_code=303)
diff --git a/app/templates/admin_invites.html b/app/templates/admin_invites.html
index 33383ea..2d5d6a4 100644
--- a/app/templates/admin_invites.html
+++ b/app/templates/admin_invites.html
@@ -50,14 +50,14 @@
         <div style="display:flex;align-items:center;gap:1rem;flex-wrap:wrap">
             <strong style="font-family:monospace;font-size:1.1rem">{{ c.code }}</strong>
             <span style="font-size:.8rem;color:var(--text-muted)">创建者: {{ c.creator.username if c.creator else '-' }}</span>
-            <span style="font-size:.8rem;color:var(--text-muted)">{{ c.created_at.strftime('%Y-%m-%d %H:%M') }}</span>
+            <span style="font-size:.8rem;color:var(--text-muted)">{{ c.created_at|to_local|strftime('%Y-%m-%d %H:%M') }}</span>
             {% if c.max_uses is not none %}
                 <span class="badge">已用 {{ c.use_count }} / {{ c.max_uses }}</span>
             {% else %}
                 <span class="badge">已用 {{ c.use_count }} / ∞</span>
             {% endif %}
             {% if c.expires_at %}
-                <span class="badge">过期: {{ c.expires_at.strftime('%Y-%m-%d %H:%M') }}</span>
+                <span class="badge">过期: {{ c.expires_at|to_local|strftime('%Y-%m-%d %H:%M') }}</span>
             {% else %}
                 <span class="badge">永不过期</span>
             {% endif %}
@@ -74,7 +74,7 @@
                 <input type="number" name="max_uses" value="{{ c.max_uses or 1 }}" min="1" class="aif-input aif-short">
             </div>
             <div class="aif-field aif-edit-date" style="display:{% if c.expires_at %}flex{% else %}none{% endif %}">
-                <input type="datetime-local" name="expires_at" value="{{ c.expires_at.strftime('%Y-%m-%dT%H:%M') if c.expires_at else '' }}" class="aif-input aif-date">
+                <input type="datetime-local" name="expires_at" value="{{ c.expires_at|to_local|strftime('%Y-%m-%dT%H:%M') if c.expires_at else '' }}" class="aif-input aif-date">
             </div>
             <div class="aif-field aif-btn-wrap">
                 <span class="aif-label" style="visibility:hidden">.</span>