feat(flowable): 添加待办任务数量统计功能

在FlowQueryVo中新增category字段用于流程分类筛选
实现待办任务数量统计接口，支持按分类筛选统计

srs-flowable/src/main/java/com/srs/flowable/domain/vo/FlowQueryVo.java

@@ -35,5 +35,7 @@ public class FlowQueryVo {
     @ApiModelProperty("每页条数")
     private Integer pageSize;
 
+    @ApiModelProperty("流程分类(category)")
+    private String category;
 
 }

srs-flowable/src/main/java/com/srs/flowable/service/IFlowTaskService.java

@@ -130,6 +130,14 @@ public interface IFlowTaskService {
      */
     AjaxResult todoList(FlowQueryVo queryVo);
 
+    /**
+     * 待办任务数量统计
+     *
+     * @param queryVo  请求参数
+     * @return
+     */
+    AjaxResult todoCount(FlowQueryVo queryVo);
+
 
     /**
      * 已办任务列表

srs-flowable/src/main/java/com/srs/flowable/service/impl/FlowTaskServiceImpl.java

@@ -785,6 +785,40 @@ public class FlowTaskServiceImpl extends FlowServiceFactory implements IFlowTask
         return AjaxResult.success(page);
     }
 
+    /**
+     * 待办任务数量统计
+     *
+     * @param queryVo 请求参数
+     * @return
+     */
+    @Override
+    public AjaxResult todoCount(FlowQueryVo queryVo) {
+        SysUser sysUser = SecurityUtils.getLoginUser().getUser();
+        TaskQuery taskQuery = taskService.createTaskQuery()
+                .active()
+                .includeProcessVariables()
+                .taskCandidateGroupIn(sysUser.getRoles().stream().map(role -> role.getRoleId().toString()).collect(Collectors.toList()))
+                .taskCandidateOrAssigned(sysUser.getUserId().toString())
+                .orderByTaskCreateTime().desc();
+
+        List<Task> taskList = taskQuery.list();
+        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
+        int count = 0;
+        for (Task task : taskList) {
+            ProcessDefinition pd = repositoryService.createProcessDefinitionQuery()
+                    .processDefinitionId(task.getProcessDefinitionId())
+                    .singleResult();
+            String category = pd.getCategory();
+            if (org.apache.commons.lang3.StringUtils.isNotBlank(queryVo.getCategory())) {
+                if (!queryVo.getCategory().equals(category)) {
+                    continue;
+                }
+            }
+            count++;
+        }
+        return AjaxResult.success(count);
+    }
+
 
     /**
      * 已办任务列表