1、减仓后减仓

common/helper/redis_helper.go

@@ -573,6 +573,33 @@ func (r *RedisHelper) HKeys(key string) ([]string, error) {
 	return fields, nil
 }
 
+func (r *RedisHelper) HExists(key, field, value string) (bool, error) {
+	exists, err := r.client.HExists(r.ctx, key, field).Result()
+	if err != nil {
+		return false, fmt.Errorf("check existence failed: %v", err)
+	}
+	if !exists {
+		return false, nil
+	}
+
+	storedValue, err := r.client.HGet(r.ctx, key, field).Result()
+	if err != nil {
+		return false, fmt.Errorf("get value failed: %v", err)
+	}
+
+	// 如果值是 JSON，比较前反序列化
+	var storedObj, inputObj interface{}
+	if err := sonic.UnmarshalString(storedValue, &storedObj); err != nil {
+		return false, fmt.Errorf("unmarshal stored value failed: %v", err)
+	}
+	if err := sonic.UnmarshalString(value, &inputObj); err != nil {
+		return false, fmt.Errorf("unmarshal input value failed: %v", err)
+	}
+
+	// 比较两个对象（需要根据实际类型调整）
+	return fmt.Sprintf("%v", storedObj) == fmt.Sprintf("%v", inputObj), nil
+}
+
 // DelSet 从集合中删除元素
 func (r *RedisHelper) DelSet(key string, value string) error {
 	_, err := r.client.SRem(r.ctx, key, value).Result()