激活时间

internal/store/postgres/iot_card_store.go

@@ -179,6 +179,10 @@ func (s *IotCardStore) UpdateFields(ctx context.Context, cardID uint, fields map
 
 	if shouldSyncActivationStatus(fields) {
 		updates["activation_status"] = buildActivationStatusExpr(fields)
+		// 激活状态从 0→1 时补写激活时间；仅写首次，不覆盖已有值。
+		if _, hasActivatedAt := fields["activated_at"]; !hasActivatedAt {
+			updates["activated_at"] = buildActivatedAtExpr(fields, time.Now())
+		}
 	}
 
 	return s.db.WithContext(ctx).Model(&model.IotCard{}).
@@ -238,6 +242,42 @@ func buildActivationStatusExpr(fields map[string]any) any {
 	)
 }
 
+// buildActivatedAtExpr 构造激活时间表达式（与本次更新同 SQL 执行）
+// 仅在激活状态从 0→1 时写入当前时间，且不覆盖已有 activated_at。
+func buildActivatedAtExpr(fields map[string]any, now time.Time) any {
+	var networkStatus any
+	var cardCategory any
+	var realNameStatus any
+
+	if v, ok := fields["network_status"]; ok {
+		networkStatus = v
+	}
+	if v, ok := fields["card_category"]; ok {
+		cardCategory = v
+	}
+	if v, ok := fields["real_name_status"]; ok {
+		realNameStatus = v
+	}
+
+	return gorm.Expr(`
+			CASE
+				WHEN activation_status = ?
+					AND COALESCE(?, network_status) = ?
+					AND (COALESCE(?, card_category) = ? OR COALESCE(?, real_name_status) = ?)
+				THEN COALESCE(activated_at, ?)
+				ELSE activated_at
+			END`,
+		constants.ActivationStatusInactive,
+		networkStatus,
+		constants.NetworkStatusOnline,
+		cardCategory,
+		constants.CardCategoryIndustry,
+		realNameStatus,
+		constants.RealNameStatusVerified,
+		now,
+	)
+}
+
 // UpdatePollingStatus 更新卡的轮询启用状态
 func (s *IotCardStore) UpdatePollingStatus(ctx context.Context, cardID uint, enablePolling bool) error {
 	return s.db.WithContext(ctx).Model(&model.IotCard{}).