feat(tenant-balance): 实现查询下级租户余额分页接口

keyboard-server/src/main/java/com/yolo/keyboard/service/tenantbalance/TenantBalanceServiceImpl.java

@@ -3,6 +3,8 @@ package com.yolo.keyboard.service.tenantbalance;
 import cn.hutool.core.collection.CollUtil;
 import com.yolo.keyboard.dal.dataobject.tenantbalancetransaction.TenantBalanceTransactionDO;
 import com.yolo.keyboard.dal.mysql.tenantbalancetransaction.TenantBalanceTransactionMapper;
+import com.yolo.keyboard.framework.common.util.collection.CollectionUtils;
+import com.yolo.keyboard.framework.mybatis.core.query.LambdaQueryWrapperX;
 import com.yolo.keyboard.framework.tenant.core.context.TenantContextHolder;
 import com.yolo.keyboard.utils.BizNoGenerator;
 import org.springframework.stereotype.Service;
@@ -19,6 +21,8 @@ import com.yolo.keyboard.framework.common.pojo.PageParam;
 import com.yolo.keyboard.framework.common.util.object.BeanUtils;
 
 import com.yolo.keyboard.dal.mysql.tenantbalance.TenantBalanceMapper;
+import com.yolo.keyboard.module.system.dal.dataobject.tenant.TenantDO;
+import com.yolo.keyboard.module.system.dal.mysql.tenant.TenantMapper;
 
 import static com.yolo.keyboard.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static com.yolo.keyboard.framework.common.util.collection.CollectionUtils.convertList;
@@ -40,6 +44,9 @@ public class TenantBalanceServiceImpl implements TenantBalanceService {
     @Resource
     private TenantBalanceTransactionMapper tenantBalanceTransactionMapper;
 
+    @Resource
+    private TenantMapper tenantMapper;
+
     @Override
     public Long createTenantBalance(TenantBalanceSaveReqVO createReqVO) {
         // 插入
@@ -125,12 +132,32 @@ public class TenantBalanceServiceImpl implements TenantBalanceService {
 
     @Override
     public TenantBalanceDO getSelfBalance() {
-        return null;
+        Long tenantId = TenantContextHolder.getRequiredTenantId();
+        return tenantBalanceMapper.selectById(tenantId);
     }
 
     @Override
     public PageResult<TenantBalanceRespVO> getSelfSubordinateTenantBalancePage(TenantBalancePageReqVO pageReqVO) {
-        return null;
+        // 1. 获取当前租户ID
+        Long currentTenantId = TenantContextHolder.getRequiredTenantId();
+        
+        // 2. 查询当前租户的下级租户列表
+        List<TenantDO> subordinateTenants = tenantMapper.selectList(TenantDO::getParentId, currentTenantId);
+        
+        // 3. 提取下级租户的ID列表
+        List<Long> tenantIds = CollectionUtils.convertList(subordinateTenants, TenantDO::getId);
+        
+        // 4. 如果没有下级租户，则直接返回空的分页结果
+        if (CollUtil.isEmpty(tenantIds)) {
+            return PageResult.empty();
+        }
+        
+        // 5. 根据下级租户ID列表查询对应的余额信息，并进行分页
+        PageResult<TenantBalanceDO> pageResult = tenantBalanceMapper.selectPage(pageReqVO,
+            new LambdaQueryWrapperX<TenantBalanceDO>().in(TenantBalanceDO::getId, tenantIds));
+            
+        // 6. 将查询结果转换为响应VO并返回
+        return BeanUtils.toBean(pageResult, TenantBalanceRespVO.class);
     }
 
 }