Merge remote-tracking branch 'origin/feature/bpm' into feature/bpm

# Conflicts: # yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java

Merge remote-tracking branch 'origin/feature/bpm' into feature/bpm
# Conflicts: # yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java
jason
2 parents 90ce6a5e 73b68a10
Showing 21 changed files with 197 additions and 122 deletions
yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/ErrorCodeConstants.java
yudao-module-bpm/yudao-module-bpm-api/src/main/java/cn/iocoder/yudao/module/bpm/enums/task/BpmTaskStatusEnum.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/BpmCategoryController.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/BpmModelController.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/BpmModelMetaInfoVO.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/model/BpmModelPageReqVO.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/definition/vo/process/BpmProcessDefinitionRespVO.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/controller/admin/task/BpmTaskController.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/definition/BpmModelConvert.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/definition/BpmProcessDefinitionConvert.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/convert/task/BpmTaskConvert.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/dataobject/definition/BpmProcessDefinitionInfoDO.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/dal/mysql/definition/BpmProcessDefinitionInfoMapper.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmCategoryService.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmCategoryServiceImpl.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelService.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmModelServiceImpl.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmProcessDefinitionService.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/definition/BpmProcessDefinitionServiceImpl.java
yudao-module-bpm/yudao-module-bpm-biz/src/main/java/cn/iocoder/yudao/module/bpm/service/task/BpmProcessInstanceServiceImpl.java
@@ -23,7 +23,7 @@ public interface ErrorCodeConstants {
             "原因：用户任务({})未配置审批人，请点击【流程设计】按钮，选择该它的【任务（审批人）】进行配置");
     ErrorCode MODEL_DEPLOY_FAIL_BPMN_START_EVENT_NOT_EXISTS = new ErrorCode(1_009_002_005, "部署流程失败，原因：BPMN 流程图中，没有开始事件");
     ErrorCode MODEL_DEPLOY_FAIL_BPMN_USER_TASK_NAME_NOT_EXISTS = new ErrorCode(1_009_002_006, "部署流程失败，原因：BPMN 流程图中，用户任务({})的名字不存在");
-    ErrorCode MODEL_UPDATE_FAIL_NOT_MANAGER = new ErrorCode(1_009_002_007, "操作流程失败，原因：你不是该流程的管理员");
+    ErrorCode MODEL_UPDATE_FAIL_NOT_MANAGER = new ErrorCode(1_009_002_007, "操作流程失败，原因：你不是该流程({})的管理员");
     // ========== 流程定义 1-009-003-000 ==========
     ErrorCode PROCESS_DEFINITION_KEY_NOT_MATCH = new ErrorCode(1_009_003_000, "流程定义的标识期望是({})，当前是({})，请修改 BPMN 流程图");
@@ -21,7 +21,6 @@ public enum BpmTaskStatusEnum {
     CANCEL(4, "已取消"),
     RETURN(5, "已退回"),
-    DELEGATE(6, "委派中"),
     /**
      * 使用场景：
@@ -48,6 +48,15 @@ public class BpmCategoryController {
         return success(true);
     }
+    @PutMapping("/update-sort-batch")
+    @Operation(summary = "批量更新流程分类的排序")
+    @Parameter(name = "ids", description = "分类编号列表", required = true, example = "1,2,3")
+    @PreAuthorize("@ss.hasPermission('bpm:category:update')")
+    public CommonResult<Boolean> updateCategorySortBatch(@RequestParam("ids") List<Long> ids) {
+        categoryService.updateCategorySortBatch(ids);
+        return success(true);
+    }
+
     @DeleteMapping("/delete")
     @Operation(summary = "删除流程分类")
     @Parameter(name = "id", description = "编号", required = true)
@@ -2,8 +2,6 @@ package cn.iocoder.yudao.module.bpm.controller.admin.definition;
 import cn.hutool.core.collection.CollUtil;
 import cn.iocoder.yudao.framework.common.pojo.CommonResult;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.framework.common.util.collection.CollectionUtils;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.*;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelUpdateReqVO;
@@ -28,7 +26,7 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
-import java.util.HashSet;
+import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -56,38 +54,38 @@ public class BpmModelController {
     @Resource
     private AdminUserApi adminUserApi;
-    @GetMapping("/page")
+    @GetMapping("/list")
     @Operation(summary = "获得模型分页")
-    public CommonResult<PageResult<BpmModelRespVO>> getModelPage(BpmModelPageReqVO pageVO) {
-        PageResult<Model> pageResult = modelService.getModelPage(pageVO);
-        if (CollUtil.isEmpty(pageResult.getList())) {
-            return success(PageResult.empty(pageResult.getTotal()));
+    @Parameter(name = "name", description = "模型名称", example = "芋艿")
+    public CommonResult<List<BpmModelRespVO>> getModelPage(@RequestParam(value = "name", required = false) String name) {
+        List<Model> list = modelService.getModelList(name);
+        if (CollUtil.isEmpty(list)) {
+            return success(Collections.emptyList());
         }
-        // 拼接数据
         // 获得 Form 表单
-        Set<Long> formIds = convertSet(pageResult.getList(), model -> {
+        Set<Long> formIds = convertSet(list, model -> {
             BpmModelMetaInfoVO metaInfo = BpmModelConvert.INSTANCE.parseMetaInfo(model);
             return metaInfo != null ? metaInfo.getFormId() : null;
         });
         Map<Long, BpmFormDO> formMap = formService.getFormMap(formIds);
         // 获得 Category Map
         Map<String, BpmCategoryDO> categoryMap = categoryService.getCategoryMap(
-                convertSet(pageResult.getList(), Model::getCategory));
+                convertSet(list, Model::getCategory));
         // 获得 Deployment Map
-        Set<String> deploymentIds = new HashSet<>();
-        pageResult.getList().forEach(model -> CollectionUtils.addIfNotNull(deploymentIds, model.getDeploymentId()));
-        Map<String, Deployment> deploymentMap = processDefinitionService.getDeploymentMap(deploymentIds);
+        Map<String, Deployment> deploymentMap = processDefinitionService.getDeploymentMap(
+                convertSet(list, Model::getDeploymentId));
         // 获得 ProcessDefinition Map
-        List<ProcessDefinition> processDefinitions = processDefinitionService.getProcessDefinitionListByDeploymentIds(deploymentIds);
+        List<ProcessDefinition> processDefinitions = processDefinitionService.getProcessDefinitionListByDeploymentIds(
+                deploymentMap.keySet());
         Map<String, ProcessDefinition> processDefinitionMap = convertMap(processDefinitions, ProcessDefinition::getDeploymentId);
         // 获得 User Map
-        Set<Long> userIds = convertSetByFlatMap(pageResult.getList(), model -> {
+        Set<Long> userIds = convertSetByFlatMap(list, model -> {
             BpmModelMetaInfoVO metaInfo = BpmModelConvert.INSTANCE.parseMetaInfo(model);
             return metaInfo != null ? metaInfo.getStartUserIds().stream() : Stream.empty();
         });
         Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
-        return success(BpmModelConvert.INSTANCE.buildModelPage(pageResult,
+        return success(BpmModelConvert.INSTANCE.buildModelList(list,
                 formMap, categoryMap, deploymentMap, processDefinitionMap, userMap));
     }
@@ -111,6 +109,7 @@ public class BpmModelController {
         return success(modelService.createModel(createRetVO));
     }
+
     @PutMapping("/update")
     @Operation(summary = "修改模型")
     @PreAuthorize("@ss.hasPermission('bpm:model:update')")
@@ -119,6 +118,14 @@ public class BpmModelController {
         return success(true);
     }
+    @PutMapping("/update-sort-batch")
+    @Operation(summary = "批量修改模型排序")
+    @Parameter(name = "ids", description = "编号数组", required = true, example = "1,2,3")
+    public CommonResult<Boolean> updateModelSortBatch(@RequestParam("ids") List<String> ids) {
+        modelService.updateModelSortBatch(getLoginUserId(), ids);
+        return success(true);
+    }
+
     @PostMapping("/deploy")
     @Operation(summary = "部署模型")
     @Parameter(name = "id", description = "编号", required = true, example = "1024")
@@ -15,7 +15,9 @@ import java.util.List;
  * BPM 流程 MetaInfo Response DTO
  * 主要用于 { Model#setMetaInfo(String)} 的存储
  *
- * 最终，它的字段和 {@link cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO} 是一致的
+ * 最终，它的字段和
+ * {@link cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO}
+ * 是一致的
  *
  * @author 芋道源码
  */
@@ -40,13 +42,11 @@ public class BpmModelMetaInfoVO {
     @NotNull(message = "表单类型不能为空")
     private Integer formType;
     @Schema(description = "表单编号", example = "1024")
-    private Long formId;  // formType 为 NORMAL 使用，必须非空
-    @Schema(description = "自定义表单的提交路径，使用 Vue 的路由地址",
-            example = "/bpm/oa/leave/create")
-    private String formCustomCreatePath;  // 表单类型为 CUSTOM 时，必须非空
-    @Schema(description = "自定义表单的查看路径，使用 Vue 的路由地址",
-            example = "/bpm/oa/leave/view")
-    private String formCustomViewPath;  // 表单类型为 CUSTOM 时，必须非空
+    private Long formId; // formType 为 NORMAL 使用，必须非空
+    @Schema(description = "自定义表单的提交路径，使用 Vue 的路由地址", example = "/bpm/oa/leave/create")
+    private String formCustomCreatePath; // 表单类型为 CUSTOM 时，必须非空
+    @Schema(description = "自定义表单的查看路径，使用 Vue 的路由地址", example = "/bpm/oa/leave/view")
+    private String formCustomViewPath; // 表单类型为 CUSTOM 时，必须非空
     @Schema(description = "是否可见", requiredMode = Schema.RequiredMode.REQUIRED, example = "true")
     @NotNull(message = "是否可见不能为空")
@@ -59,4 +59,7 @@ public class BpmModelMetaInfoVO {
     @NotEmpty(message = "可管理用户编号数组不能为空")
     private List<Long> managerUserIds;
+    @Schema(description = "排序", example = "1")
+    private Long sort; // 创建时，后端自动生成
+
 }
-package cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model;
-
-import cn.iocoder.yudao.framework.common.pojo.PageParam;
-import io.swagger.v3.oas.annotations.media.Schema;
-import lombok.Data;
-import lombok.EqualsAndHashCode;
-import lombok.ToString;
-
-
-@Schema(description = "管理后台 - 流程模型分页 Request VO")
-@Data
-public class BpmModelPageReqVO extends PageParam {
-
-    @Schema(description = "标识，精准匹配", example = "process1641042089407")
-    private String key;
-
-    @Schema(description = "名字，模糊匹配", example = "芋道")
-    private String name;
-
-    @Schema(description = "流程分类", example = "1")
-    private String category;
-
-}
@@ -62,6 +62,9 @@ public class BpmProcessDefinitionRespVO {
     @Schema(description = "BPMN XML")
     private String bpmnXml; // 需要从对应的 BpmnModel 读取，非必须返回
+    @Schema(description = "流程定义排序", requiredMode = Schema.RequiredMode.REQUIRED, example = "1024")
+    private Long sort;
+
     @Schema(description = "发起用户需要选择审批人的任务数组")
     private List<UserTask> startUserSelectTasks; // 需要从对应的 BpmnModel 读取，非必须返回
@@ -123,18 +123,15 @@ public class BpmTaskController {
         }
         // 拼接数据
-        HistoricProcessInstance processInstance = processInstanceService.getHistoricProcessInstance(processInstanceId);
-        // 获得 User 和 Dept Map
         Set<Long> userIds = convertSetByFlatMap(taskList, task ->
                 Stream.of(NumberUtils.parseLong(task.getAssignee()), NumberUtils.parseLong(task.getOwner())));
-        userIds.add(NumberUtils.parseLong(processInstance.getStartUserId()));
         Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
         Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(
                 convertSet(userMap.values(), AdminUserRespDTO::getDeptId));
         // 获得 Form Map
         Map<Long, BpmFormDO> formMap = formService.getFormMap(
                 convertSet(taskList, task -> NumberUtils.parseLong(task.getFormKey())));
-        return success(BpmTaskConvert.INSTANCE.buildTaskListByProcessInstanceId(taskList, processInstance,
+        return success(BpmTaskConvert.INSTANCE.buildTaskListByProcessInstanceId(taskList,
                 formMap, userMap, deptMap));
     }
 package cn.iocoder.yudao.module.bpm.convert.definition;
 import cn.hutool.core.util.ArrayUtil;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.date.DateUtils;
 import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
 import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
@@ -22,6 +21,7 @@ import org.mapstruct.Mapper;
 import org.mapstruct.factory.Mappers;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
@@ -37,25 +37,31 @@ public interface BpmModelConvert {
     BpmModelConvert INSTANCE = Mappers.getMapper(BpmModelConvert.class);
-    default PageResult<BpmModelRespVO> buildModelPage(PageResult<Model> pageResult,
-                                                      Map<Long, BpmFormDO> formMap,
-                                                      Map<String, BpmCategoryDO> categoryMap, Map<String, Deployment> deploymentMap,
-                                                      Map<String, ProcessDefinition> processDefinitionMap,
-                                                      Map<Long, AdminUserRespDTO> userMap) {
-        List<BpmModelRespVO> list = convertList(pageResult.getList(), model -> {
+    default List<BpmModelRespVO> buildModelList(List<Model> list,
+                                                Map<Long, BpmFormDO> formMap,
+                                                Map<String, BpmCategoryDO> categoryMap,
+                                                Map<String, Deployment> deploymentMap,
+                                                Map<String, ProcessDefinition> processDefinitionMap,
+                                                Map<Long, AdminUserRespDTO> userMap) {
+        List<BpmModelRespVO> result = convertList(list, model -> {
             BpmModelMetaInfoVO metaInfo = parseMetaInfo(model);
             BpmFormDO form = metaInfo != null ? formMap.get(metaInfo.getFormId()) : null;
             BpmCategoryDO category = categoryMap.get(model.getCategory());
             Deployment deployment = model.getDeploymentId() != null ? deploymentMap.get(model.getDeploymentId()) : null;
-            ProcessDefinition processDefinition = model.getDeploymentId() != null ? processDefinitionMap.get(model.getDeploymentId()) : null;
-            List<AdminUserRespDTO> startUsers = metaInfo != null ? convertList(metaInfo.getStartUserIds(), userMap::get) : null;
+            ProcessDefinition processDefinition = model.getDeploymentId() != null
+                    ? processDefinitionMap.get(model.getDeploymentId())
+                    : null;
+            List<AdminUserRespDTO> startUsers = metaInfo != null ? convertList(metaInfo.getStartUserIds(), userMap::get)
+                    : null;
             return buildModel0(model, metaInfo, form, category, deployment, processDefinition, startUsers);
         });
-        return new PageResult<>(list, pageResult.getTotal());
+        // 排序
+        result.sort(Comparator.comparing(BpmModelMetaInfoVO::getSort));
+        return result;
     }
     default BpmModelRespVO buildModel(Model model,
-                                     byte[] bpmnBytes) {
+            byte[] bpmnBytes) {
         BpmModelMetaInfoVO metaInfo = parseMetaInfo(model);
         BpmModelRespVO modelVO = buildModel0(model, metaInfo, null, null, null, null, null);
         if (ArrayUtil.isNotEmpty(bpmnBytes)) {
@@ -65,9 +71,9 @@ public interface BpmModelConvert {
     }
     default BpmModelRespVO buildModel0(Model model,
-                                       BpmModelMetaInfoVO metaInfo, BpmFormDO form, BpmCategoryDO category,
-                                       Deployment deployment, ProcessDefinition processDefinition,
-                                       List<AdminUserRespDTO> startUsers) {
+            BpmModelMetaInfoVO metaInfo, BpmFormDO form, BpmCategoryDO category,
+            Deployment deployment, ProcessDefinition processDefinition,
+            List<AdminUserRespDTO> startUsers) {
         BpmModelRespVO modelRespVO = new BpmModelRespVO().setId(model.getId()).setName(model.getName())
                 .setKey(model.getKey()).setCategory(model.getCategory())
                 .setCreateTime(DateUtils.of(model.getCreateTime()));
@@ -83,8 +89,9 @@ public interface BpmModelConvert {
         // ProcessDefinition
         if (processDefinition != null) {
             modelRespVO.setProcessDefinition(BeanUtils.toBean(processDefinition, BpmProcessDefinitionRespVO.class));
-            modelRespVO.getProcessDefinition().setSuspensionState(processDefinition.isSuspended() ?
-                    SuspensionState.SUSPENDED.getStateCode() : SuspensionState.ACTIVE.getStateCode());
+            modelRespVO.getProcessDefinition()
+                    .setSuspensionState(processDefinition.isSuspended() ? SuspensionState.SUSPENDED.getStateCode()
+                            : SuspensionState.ACTIVE.getStateCode());
             if (deployment != null) {
                 modelRespVO.getProcessDefinition().setDeploymentTime(DateUtils.of(deployment.getDeploymentTime()));
             }
@@ -112,6 +119,10 @@ public interface BpmModelConvert {
         if (vo.getStartUserIds() == null) {
             vo.setStartUserIds(Collections.emptyList());
         }
+        // 如果为空，兜底处理，使用 createTime 创建时间
+        if (vo.getSort() == null) {
+            vo.setSort(model.getCreateTime().getTime());
+        }
         return vo;
     }
@@ -20,6 +20,7 @@ import org.mapstruct.Mapping;
 import org.mapstruct.MappingTarget;
 import org.mapstruct.factory.Mappers;
+import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
@@ -47,7 +48,7 @@ public interface BpmProcessDefinitionConvert {
                                                                         Map<String, BpmProcessDefinitionInfoDO> processDefinitionInfoMap,
                                                                         Map<Long, BpmFormDO> formMap,
                                                                         Map<String, BpmCategoryDO> categoryMap) {
-        return CollectionUtils.convertList(list, definition -> {
+        List<BpmProcessDefinitionRespVO> result = CollectionUtils.convertList(list, definition -> {
             Deployment deployment = MapUtil.get(deploymentMap, definition.getDeploymentId(), Deployment.class);
             BpmProcessDefinitionInfoDO processDefinitionInfo = MapUtil.get(processDefinitionInfoMap, definition.getId(), BpmProcessDefinitionInfoDO.class);
             BpmFormDO form = null;
@@ -57,6 +58,9 @@ public interface BpmProcessDefinitionConvert {
             BpmCategoryDO category = MapUtil.get(categoryMap, definition.getCategory(), BpmCategoryDO.class);
             return buildProcessDefinition(definition, deployment, processDefinitionInfo, form, category, null, null);
         });
+        // 排序
+        result.sort(Comparator.comparing(BpmProcessDefinitionRespVO::getSort));
+        return result;
     }
     default BpmProcessDefinitionRespVO buildProcessDefinition(ProcessDefinition definition,
@@ -9,6 +9,7 @@ import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.bpm.controller.admin.base.user.UserSimpleBaseVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.task.BpmTaskRespVO;
 import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmFormDO;
+import cn.iocoder.yudao.module.bpm.enums.task.BpmTaskStatusEnum;
 import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.FlowableUtils;
 import cn.iocoder.yudao.module.bpm.service.message.dto.BpmMessageSendWhenTaskCreatedReqDTO;
 import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
@@ -78,18 +79,17 @@ public interface BpmTaskConvert {
     }
     default List<BpmTaskRespVO> buildTaskListByProcessInstanceId(List<HistoricTaskInstance> taskList,
-                                                                 HistoricProcessInstance processInstance,
                                                                  Map<Long, BpmFormDO> formMap,
                                                                  Map<Long, AdminUserRespDTO> userMap,
                                                                  Map<Long, DeptRespDTO> deptMap) {
         return CollectionUtils.convertList(taskList, task -> {
+            // 特殊：已取消的任务，不返回
             BpmTaskRespVO taskVO = BeanUtils.toBean(task, BpmTaskRespVO.class);
             Integer taskStatus = FlowableUtils.getTaskStatus(task);
+            if (BpmTaskStatusEnum.isCancelStatus(taskStatus)) {
+                return null;
+            }
             taskVO.setStatus(taskStatus).setReason(FlowableUtils.getTaskReason(task));
-            // 流程实例
-            AdminUserRespDTO startUser = userMap.get(NumberUtils.parseLong(processInstance.getStartUserId()));
-            taskVO.setProcessInstance(BeanUtils.toBean(processInstance, BpmTaskRespVO.ProcessInstance.class));
-            taskVO.getProcessInstance().setStartUser(BeanUtils.toBean(startUser, UserSimpleBaseVO.class));
             // 表单信息
             BpmFormDO form = MapUtil.get(formMap, NumberUtils.parseLong(task.getFormKey()), BpmFormDO.class);
             if (form != null) {
@@ -121,6 +121,10 @@ public class BpmProcessDefinitionInfoDO extends BaseDO {
      * 目的：如果 false 不可见，则不展示在“发起流程”的列表里
      */
     private Boolean visible;
+    /**
+     * 排序值
+     */
+    private Long sort;
     /**
      * 可发起用户编号数组
 package cn.iocoder.yudao.module.bpm.dal.mysql.definition;
+import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
 import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
 import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
 import org.apache.ibatis.annotations.Mapper;
@@ -18,4 +19,9 @@ public interface BpmProcessDefinitionInfoMapper extends BaseMapperX&lt;BpmProcessDe
         return selectOne(BpmProcessDefinitionInfoDO::getProcessDefinitionId, processDefinitionId);
     }
+    default void updateByModelId(String modelId, BpmProcessDefinitionInfoDO updateObj) {
+        update(updateObj,
+                new LambdaQueryWrapperX<BpmProcessDefinitionInfoDO>().eq(BpmProcessDefinitionInfoDO::getModelId, modelId));
+    }
+
 }
@@ -82,4 +82,11 @@ public interface BpmCategoryService {
      */
     List<BpmCategoryDO> getCategoryListByStatus(Integer status);
+    /**
+     * 批量更新流程分类的排序：每个分类的 sort 值，从 0 开始递增
+     *
+     * @param ids 分类编号列表
+     */
+    void updateCategorySortBatch(List<Long> ids);
+
 }
 \ No newline at end of file
@@ -2,21 +2,22 @@ package cn.iocoder.yudao.module.bpm.service.definition;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.ObjUtil;
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.category.BpmCategoryPageReqVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.category.BpmCategorySaveReqVO;
-import org.springframework.stereotype.Service;
-import jakarta.annotation.Resource;
-import org.springframework.validation.annotation.Validated;
-
 import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmCategoryDO;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
-
 import cn.iocoder.yudao.module.bpm.dal.mysql.category.BpmCategoryMapper;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.validation.annotation.Validated;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants.*;
@@ -58,7 +59,7 @@ public class BpmCategoryServiceImpl implements BpmCategoryService {
     private void validateCategoryNameUnique(BpmCategorySaveReqVO updateReqVO) {
         BpmCategoryDO category = bpmCategoryMapper.selectByName(updateReqVO.getName());
         if (category == null
-            || ObjUtil.equal(category.getId(), updateReqVO.getId())) {
+                || ObjUtil.equal(category.getId(), updateReqVO.getId())) {
             return;
         }
         throw exception(CATEGORY_NAME_DUPLICATE, updateReqVO.getName());
@@ -67,7 +68,7 @@ public class BpmCategoryServiceImpl implements BpmCategoryService {
     private void validateCategoryCodeUnique(BpmCategorySaveReqVO updateReqVO) {
         BpmCategoryDO category = bpmCategoryMapper.selectByCode(updateReqVO.getCode());
         if (category == null
-            || ObjUtil.equal(category.getId(), updateReqVO.getId())) {
+                || ObjUtil.equal(category.getId(), updateReqVO.getId())) {
             return;
         }
         throw exception(CATEGORY_CODE_DUPLICATE, updateReqVO.getCode());
@@ -110,4 +111,20 @@ public class BpmCategoryServiceImpl implements BpmCategoryService {
         return bpmCategoryMapper.selectListByStatus(status);
     }
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void updateCategorySortBatch(List<Long> ids) {
+        // 校验分类都存在
+        List<BpmCategoryDO> categories = bpmCategoryMapper.selectByIds(ids);
+        if (categories.size() != ids.size()) {
+            throw exception(CATEGORY_NOT_EXISTS);
+        }
+
+        // 批量更新排序
+        List<BpmCategoryDO> updateList = IntStream.range(0, ids.size())
+                .mapToObj(index -> new BpmCategoryDO().setId(ids.get(index)).setSort(index))
+                .collect(Collectors.toList());
+        bpmCategoryMapper.updateBatch(updateList);
+    }
+
 }
 \ No newline at end of file
 package cn.iocoder.yudao.module.bpm.service.definition;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
-import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.BpmModelPageReqVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.BpmModelSaveReqVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelUpdateReqVO;
@@ -9,20 +7,22 @@ import jakarta.validation.Valid;
 import org.flowable.bpmn.model.BpmnModel;
 import org.flowable.engine.repository.Model;
+import java.util.List;
+
 /**
- * Flowable流程模型接口
+ * 流程模型接口
  *
  * @author yunlongn
  */
 public interface BpmModelService {
     /**
-     * 获得流程模型分页
+     * 获得流程模型列表
      *
-     * @param pageVO 分页查询
-     * @return 流程模型分页
+     * @param name 模型名称
+     * @return 流程模型列表
      */
-    PageResult<Model> getModelPage(BpmModelPageReqVO pageVO);
+    List<Model> getModelList(String name);
     /**
      * 创建流程模型
@@ -65,6 +65,14 @@ public interface BpmModelService {
     void updateModel(Long userId, @Valid BpmModelSaveReqVO updateReqVO);
     /**
+     * 批量更新模型排序
+     *
+     * @param userId 用户编号
+     * @param ids 编号列表
+     */
+    void updateModelSortBatch(Long userId, List<String> ids);
+
+    /**
      * 将流程模型，部署成一个流程定义
      *
      * @param userId 用户编号
@@ -3,12 +3,9 @@ package cn.iocoder.yudao.module.bpm.service.definition;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.ArrayUtil;
 import cn.hutool.core.util.StrUtil;
-import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
-import cn.iocoder.yudao.framework.common.util.object.PageUtils;
 import cn.iocoder.yudao.framework.common.util.validation.ValidationUtils;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.BpmModelMetaInfoVO;
-import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.BpmModelPageReqVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.BpmModelSaveReqVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO;
 import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelUpdateReqVO;
@@ -35,14 +32,15 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertMap;
 import static cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants.*;
 /**
- * Flowable流程模型实现
- * 主要进行 Flowable {@link Model} 的维护
+ * 流程模型实现：主要进行 Flowable {@link Model} 的维护
  *
  * @author yunlongn
  * @author 芋道源码
@@ -64,27 +62,12 @@ public class BpmModelServiceImpl implements BpmModelService {
     private BpmTaskCandidateInvoker taskCandidateInvoker;
     @Override
-    public PageResult<Model> getModelPage(BpmModelPageReqVO pageVO) {
+    public List<Model> getModelList(String name) {
         ModelQuery modelQuery = repositoryService.createModelQuery();
-        modelQuery.modelTenantId(FlowableUtils.getTenantId());
-        if (StrUtil.isNotBlank(pageVO.getKey())) {
-            modelQuery.modelKey(pageVO.getKey());
+        if (StrUtil.isNotEmpty(name)) {
+            modelQuery.modelNameLike(name);
         }
-        if (StrUtil.isNotBlank(pageVO.getName())) {
-            modelQuery.modelNameLike("%" + pageVO.getName() + "%"); // 模糊匹配
-        }
-        if (StrUtil.isNotBlank(pageVO.getCategory())) {
-            modelQuery.modelCategory(pageVO.getCategory());
-        }
-        // 执行查询
-        long count = modelQuery.count();
-        if (count == 0) {
-            return PageResult.empty(count);
-        }
-        List<Model> models = modelQuery
-                .orderByCreateTime().desc()
-                .listPage(PageUtils.getStart(pageVO), pageVO.getPageSize());
-        return new PageResult<>(models, count);
+        return modelQuery.list();
     }
     @Override
@@ -100,6 +83,7 @@ public class BpmModelServiceImpl implements BpmModelService {
         }
         // 2.1 创建流程定义
+        createReqVO.setSort(System.currentTimeMillis()); // 使用当前时间，作为排序
         Model model = repositoryService.newModel();
         BpmModelConvert.INSTANCE.copyToModel(model, createReqVO);
         model.setTenantId(FlowableUtils.getTenantId());
@@ -120,6 +104,34 @@ public class BpmModelServiceImpl implements BpmModelService {
         repositoryService.saveModel(model);
     }
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void updateModelSortBatch(Long userId, List<String> ids) {
+        // 1.1 校验流程模型存在
+        List<Model> models = repositoryService.createModelQuery()
+                .modelTenantId(FlowableUtils.getTenantId()).list();
+        models.removeIf(model ->!ids.contains(model.getId()));
+        if (ids.size() != models.size()) {
+            throw exception(MODEL_NOT_EXISTS);
+        }
+        Map<String, Model> modelMap = convertMap(models, Model::getId);
+        // 1.2 校验是否为管理员
+        ids.forEach(id -> validateModelManager(id, userId));
+
+        // 保存排序
+        long sort = System.currentTimeMillis(); // 使用时间戳 - i 作为排序
+        for (int i = ids.size() - 1; i > 0; i--) {
+            Model model = modelMap.get(ids.get(i));
+            // 更新模型
+            BpmModelMetaInfoVO metaInfo = BpmModelConvert.INSTANCE.parseMetaInfo(model).setSort(sort);
+            model.setMetaInfo(JsonUtils.toJsonString(metaInfo));
+            repositoryService.saveModel(model);
+            // 更新排序
+            processDefinitionService.updateProcessDefinitionSortByModelId(model.getId(), sort);
+            sort--;
+        }
+    }
+
     private Model validateModelExists(String id) {
         Model model = repositoryService.getModel(id);
         if (model == null) {
@@ -139,7 +151,7 @@ public class BpmModelServiceImpl implements BpmModelService {
         Model model = validateModelExists(id);
         BpmModelMetaInfoVO metaInfo = BpmModelConvert.INSTANCE.parseMetaInfo(model);
         if (metaInfo == null || !CollUtil.contains(metaInfo.getManagerUserIds(), userId)) {
-            throw exception(MODEL_UPDATE_FAIL_NOT_MANAGER);
+            throw exception(MODEL_UPDATE_FAIL_NOT_MANAGER, model.getName());
         }
         return model;
     }
@@ -18,7 +18,7 @@ import java.util.Set;
 import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertMap;
 /**
- * Flowable流程定义接口
+ * 流程定义接口
  *
  * @author yunlong.li
  * @author ZJQ
@@ -64,6 +64,14 @@ public interface BpmProcessDefinitionService {
     void updateProcessDefinitionState(String id, Integer state);
     /**
+     * 更新模型编号
+     *
+     * @param modelId 流程定义编号
+     * @param sort 排序
+     */
+    void updateProcessDefinitionSortByModelId(String modelId, Long sort);
+
+    /**
      * 获得流程定义对应的 BPMN
      *
      * @param id 流程定义编号
@@ -173,6 +173,11 @@ public class BpmProcessDefinitionServiceImpl implements BpmProcessDefinitionServ
     }
     @Override
+    public void updateProcessDefinitionSortByModelId(String modelId, Long sort) {
+        processDefinitionMapper.updateByModelId(modelId, new BpmProcessDefinitionInfoDO().setSort(sort));
+    }
+
+    @Override
     public BpmnModel getProcessDefinitionBpmnModel(String id) {
         return repositoryService.getBpmnModel(id);
     }
-package cn.iocoder.yudao.module.bpm.service.task;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.ListUtil;
import cn.hutool.core.lang.Assert;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.date.DateUtils;
import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
import cn.iocoder.yudao.framework.common.util.object.ObjectUtils;
import cn.iocoder.yudao.framework.common.util.object.PageUtils;
import cn.iocoder.yudao.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO;
import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.*;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNodeTask;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.task.BpmTaskRespVO;
import cn.iocoder.yudao.module.bpm.convert.task.BpmProcessInstanceConvert;
import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
import cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants;
import cn.iocoder.yudao.module.bpm.enums.definition.BpmModelTypeEnum;
import cn.iocoder.yudao.module.bpm.enums.definition.BpmSimpleModelNodeType;
import cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum;
import cn.iocoder.yudao.module.bpm.enums.task.BpmReasonEnum;
import cn.iocoder.yudao.module.bpm.enums.task.BpmTaskStatusEnum;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.BpmTaskCandidateInvoker;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.strategy.dept.BpmTaskCandidateStartUserSelectStrategy;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnModelConstants;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnVariableConstants;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.event.BpmProcessInstanceEventPublisher;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.BpmnModelUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.FlowableUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.SimpleModelUtils;
import cn.iocoder.yudao.module.bpm.service.definition.BpmProcessDefinitionService;
import cn.iocoder.yudao.module.bpm.service.message.BpmMessageService;
import cn.iocoder.yudao.module.system.api.dept.DeptApi;
import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import lombok.extern.slf4j.Slf4j;
import org.flowable.bpmn.constants.BpmnXMLConstants;
import org.flowable.bpmn.model.*;
import org.flowable.engine.HistoryService;
import org.flowable.engine.RuntimeService;
import org.flowable.engine.history.HistoricActivityInstance;
import org.flowable.engine.history.HistoricProcessInstance;
import org.flowable.engine.history.HistoricProcessInstanceQuery;
import org.flowable.engine.repository.ProcessDefinition;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.history.HistoricTaskInstance;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;

import java.util.*;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.*;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.filterList;
import static cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNode;
import static cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants.*;
import static cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnModelConstants.START_USER_NODE_ID;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import static org.flowable.bpmn.constants.BpmnXMLConstants.*;

/**
 * 流程实例 Service 实现类
 * <p>
 * ProcessDefinition & ProcessInstance & Execution & Task 的关系：
 * 1. <a href="https://blog.csdn.net/bobozai86/article/details/105210414" />
 * <p>
 * HistoricProcessInstance & ProcessInstance 的关系：
 * 1. <a href=" https://my.oschina.net/843294669/blog/71902" />
 * <p>
 * 简单来说，前者 = 历史 + 运行中的流程实例，后者仅是运行中的流程实例
 *
 * @author 芋道源码
 */
@Service
@Validated
@Slf4j
public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService {

    @Resource
    private RuntimeService runtimeService;
    @Resource
    private HistoryService historyService;

    @Resource
    private BpmProcessDefinitionService processDefinitionService;
    @Resource
    @Lazy // 避免循环依赖
    private BpmTaskService taskService;
    @Resource
    private BpmMessageService messageService;

    @Resource
    private AdminUserApi adminUserApi;
    @Resource
    private DeptApi deptApi;

    @Resource
    private BpmProcessInstanceEventPublisher processInstanceEventPublisher;

    @Resource
    private BpmTaskCandidateInvoker taskCandidateInvoker;

    // ========== Query 查询相关方法 ==========

    @Override
    public ProcessInstance getProcessInstance(String id) {
        return runtimeService.createProcessInstanceQuery()
                .includeProcessVariables()
                .processInstanceId(id)
                .singleResult();
    }

    @Override
    public List<ProcessInstance> getProcessInstances(Set<String> ids) {
        return runtimeService.createProcessInstanceQuery().processInstanceIds(ids).list();
    }

    @Override
    public HistoricProcessInstance getHistoricProcessInstance(String id) {
        return historyService.createHistoricProcessInstanceQuery().processInstanceId(id).includeProcessVariables().singleResult();
    }

    @Override
    public List<HistoricProcessInstance> getHistoricProcessInstances(Set<String> ids) {
        return historyService.createHistoricProcessInstanceQuery().processInstanceIds(ids).list();
    }

    @Override
    public PageResult<HistoricProcessInstance> getProcessInstancePage(Long userId,
                                                                      BpmProcessInstancePageReqVO pageReqVO) {
        // 通过 BpmProcessInstanceExtDO 表，先查询到对应的分页
        HistoricProcessInstanceQuery processInstanceQuery = historyService.createHistoricProcessInstanceQuery()
                .includeProcessVariables()
                .processInstanceTenantId(FlowableUtils.getTenantId())
                .orderByProcessInstanceStartTime().desc();
        if (userId != null) { // 【我的流程】菜单时，需要传递该字段
            processInstanceQuery.startedBy(String.valueOf(userId));
        } else if (pageReqVO.getStartUserId() != null) { // 【管理流程】菜单时，才会传递该字段
            processInstanceQuery.startedBy(String.valueOf(pageReqVO.getStartUserId()));
        }
        if (StrUtil.isNotEmpty(pageReqVO.getName())) {
            processInstanceQuery.processInstanceNameLike("%" + pageReqVO.getName() + "%");
        }
        if (StrUtil.isNotEmpty(pageReqVO.getProcessDefinitionKey())) {
            processInstanceQuery.processDefinitionKey(pageReqVO.getProcessDefinitionKey());
        }
        if (StrUtil.isNotEmpty(pageReqVO.getCategory())) {
            processInstanceQuery.processDefinitionCategory(pageReqVO.getCategory());
        }
        if (pageReqVO.getStatus() != null) {
            processInstanceQuery.variableValueEquals(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, pageReqVO.getStatus());
        }
        if (ArrayUtil.isNotEmpty(pageReqVO.getCreateTime())) {
            processInstanceQuery.startedAfter(DateUtils.of(pageReqVO.getCreateTime()[0]));
            processInstanceQuery.startedBefore(DateUtils.of(pageReqVO.getCreateTime()[1]));
        }
        // 查询数量
        long processInstanceCount = processInstanceQuery.count();
        if (processInstanceCount == 0) {
            return PageResult.empty(processInstanceCount);
        }
        // 查询列表
        List<HistoricProcessInstance> processInstanceList = processInstanceQuery.listPage(PageUtils.getStart(pageReqVO), pageReqVO.getPageSize());
        return new PageResult<>(processInstanceList, processInstanceCount);
    }


    private Map<String, String> getFormFieldsPermission(BpmnModel bpmnModel,
                                                        String activityId, String taskId) {
        // 1. 获取流程活动编号。流程活动 Id 为空事，从流程任务中获取流程活动 Id
        if (StrUtil.isEmpty(activityId) && StrUtil.isNotEmpty(taskId)) {
            activityId = Optional.ofNullable(taskService.getHistoricTask(taskId))
                    .map(HistoricTaskInstance::getTaskDefinitionKey).orElse(null);
        }
        if (StrUtil.isEmpty(activityId)) {
            return null;
        }

        // 2. 从 BpmnModel 中解析表单字段权限
        return BpmnModelUtils.parseFormFieldsPermission(bpmnModel, activityId);
    }

    @Override
    public BpmApprovalDetailRespVO getApprovalDetail(Long loginUserId, BpmApprovalDetailReqVO reqVO) {
        // 1.1 从 reqVO 中，读取公共变量
        Long startUserId = loginUserId; // 流程发起人
        HistoricProcessInstance historicProcessInstance = null; // 流程实例
        Integer processInstanceStatus = BpmProcessInstanceStatusEnum.NOT_START.getStatus(); // 流程状态
        Map<String, Object> processVariables = reqVO.getProcessVariables(); // 流程变量
        // 1.2 如果是流程已发起的场景，则使用流程实例的数据
        if (reqVO.getProcessInstanceId() != null) {
            historicProcessInstance = getHistoricProcessInstance(reqVO.getProcessInstanceId());
            if (historicProcessInstance == null) {
                throw exception(ErrorCodeConstants.PROCESS_INSTANCE_NOT_EXISTS);
            }
            startUserId = Long.valueOf(historicProcessInstance.getStartUserId());
            processInstanceStatus = FlowableUtils.getProcessInstanceStatus(historicProcessInstance);
            processVariables = historicProcessInstance.getProcessVariables();
        }
        // 1.3 读取其它相关数据
        ProcessDefinition processDefinition = processDefinitionService.getProcessDefinition(
                historicProcessInstance != null ? historicProcessInstance.getProcessDefinitionId() : reqVO.getProcessDefinitionId());
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(processDefinition.getId());
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processDefinition.getId());

        // 2.1 已结束 + 进行中的活动节点
        List<ActivityNode> endActivityNodes = null; // 已结束的审批信息
        List<ActivityNode> runActivityNodes = null; // 进行中的审批信息
        List<HistoricActivityInstance> activities = null; // 流程实例列表
        if (reqVO.getProcessInstanceId() != null) {
            activities = taskService.getActivityListByProcessInstanceId(reqVO.getProcessInstanceId());
            List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(reqVO.getProcessInstanceId(), true);
            endActivityNodes = getEndActivityNodeList(startUserId, processDefinitionInfo,
                    historicProcessInstance, processInstanceStatus, activities, tasks);
            runActivityNodes = getRunApproveNodeList(startUserId, bpmnModel, processDefinition, processVariables, activities, tasks);
        }

        // 2.2 流程已经结束，直接 return，无需预测
        if (BpmProcessInstanceStatusEnum.isProcessEndStatus(processInstanceStatus)) {
            return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance,
                    processInstanceStatus, endActivityNodes, runActivityNodes, null, null);
        }

        // 3.1 计算当前登录用户的待办任务
        // TODO @jason：有一个极端情况，如果一个用户有 2 个 task A 和 B，A 已经通过，B 需要审核。这个时，通过 A 进来，todo 拿到 B，会不会表单权限不一致哈。
        BpmTaskRespVO todoTask = taskService.getFirstTodoTask(loginUserId, reqVO.getProcessInstanceId());

        // 3.2 预测未运行节点的审批信息
        List<ActivityNode> simulateActivityNodes = getSimulateApproveNodeList(startUserId, bpmnModel, processDefinitionInfo,
                processVariables, activities);

        // 4. 拼接最终数据
        return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance,
                processInstanceStatus, endActivityNodes, runActivityNodes, simulateActivityNodes, todoTask);
    }

    /**
     * 拼接审批详情的最终数据
     * <p>
     * 主要是，拼接审批人的用户信息、部门信息
     */
    private BpmApprovalDetailRespVO buildApprovalDetail(BpmApprovalDetailReqVO reqVO,
                                                        BpmnModel bpmnModel,
                                                        ProcessDefinition processDefinition,
                                                        BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                        HistoricProcessInstance processInstance,
                                                        Integer processInstanceStatus,
                                                        List<ActivityNode> endApprovalNodeInfos,
                                                        List<ActivityNode> runningApprovalNodeInfos,
                                                        List<ActivityNode> simulateApprovalNodeInfos,
                                                        BpmTaskRespVO todoTask) {
        // 1. 获取所有需要读取用户信息的 userIds
        List<ActivityNode> approveNodes = newArrayList(asList(endApprovalNodeInfos, runningApprovalNodeInfos, simulateApprovalNodeInfos));
        Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds(processInstance, approveNodes, todoTask);
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
        Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId));

        // 2. 表单权限
        Map<String, String> formFieldsPermission = getFormFieldsPermission(bpmnModel, reqVO.getActivityId(), reqVO.getTaskId());

        // 3. 拼接数据
        return BpmProcessInstanceConvert.INSTANCE.buildApprovalDetail(bpmnModel, processDefinition, processDefinitionInfo, processInstance,
                processInstanceStatus, approveNodes, todoTask, formFieldsPermission, userMap, deptMap);
    }

    /**
     * 获得【已结束】的活动节点们
     */
    private List<ActivityNode> getEndActivityNodeList(Long startUserId,
                                                      BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                      HistoricProcessInstance historicProcessInstance, Integer processInstanceStatus,
                                                      List<HistoricActivityInstance> activities, List<HistoricTaskInstance> tasks) {
        // 遍历 tasks 列表，只处理已结束的 UserTask
        // 为什么不通过 activities 呢？因为，加签场景下，它只存在于 tasks，没有 activities，导致如果遍历 activities 的话，它无法成为一个节点
        List<HistoricTaskInstance> endTasks = filterList(tasks, task -> task.getEndTime() != null);
        List<ActivityNode> approvalNodes = convertList(endTasks, task -> {
            ActivityNode activityNode = new ActivityNode().setId(task.getTaskDefinitionKey()).setName(task.getName())
                    .setNodeType(START_USER_NODE_ID.equals(task.getTaskDefinitionKey()) ?
                            BpmSimpleModelNodeType.START_USER_NODE.getType() : BpmSimpleModelNodeType.APPROVE_NODE.getType())
                    .setStatus(FlowableUtils.getTaskStatus(task))
                    .setStartTime(DateUtils.of(task.getCreateTime())).setEndTime(DateUtils.of(task.getEndTime()))
                    .setTasks(singletonList(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task)));
            // 如果是取消状态，则跳过
            if (BpmTaskStatusEnum.isCancelStatus(activityNode.getStatus())) {
                return null;
            }
            return activityNode;
        });

        // 遍历 activities，只处理已结束的 StartEvent、EndEvent
        List<HistoricActivityInstance> endActivities = filterList(activities, activity -> activity.getEndTime() != null
                && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_EVENT_START, ELEMENT_EVENT_END)));
        endActivities.forEach(activity -> {
            // StartEvent：只处理 BPMN 的场景。因为，SIMPLE 情况下，已经有 START_USER_NODE 节点
            if (ELEMENT_EVENT_START.equals(activity.getActivityType())
                    && BpmModelTypeEnum.BPMN.getType().equals(processDefinitionInfo.getModelType())) {
                ActivityNodeTask startTask = new ActivityNodeTask().setId(BpmnModelConstants.START_USER_NODE_ID)
                        .setAssignee(startUserId).setStatus(BpmTaskStatusEnum.APPROVE.getStatus());
                ActivityNode startNode = new ActivityNode().setId(startTask.getId())
                        .setName(BpmSimpleModelNodeType.START_USER_NODE.getName())
                        .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType())
                        .setStatus(startTask.getStatus()).setTasks(ListUtil.of(startTask))
                        .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime()));
                approvalNodes.add(0, startNode);
                return;
            }
            // EndEvent
            if (ELEMENT_EVENT_END.equals(activity.getActivityType())) {
                if (BpmProcessInstanceStatusEnum.isRejectStatus(processInstanceStatus)) {
                    // 拒绝情况下，不需要展示 EndEvent 结束节点。原因是：前端已经展示 x 效果，无需重复展示
                    return;
                }
                ActivityNode endNode = new ActivityNode().setId(activity.getId())
                        .setName(BpmSimpleModelNodeType.END_NODE.getName())
                        .setNodeType(BpmSimpleModelNodeType.END_NODE.getType()).setStatus(processInstanceStatus)
                        .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime()));
                String reason = FlowableUtils.getProcessInstanceReason(historicProcessInstance);
                if (StrUtil.isNotEmpty(reason)) {
                    endNode.setTasks(singletonList(new ActivityNodeTask().setId(endNode.getId())
                            .setStatus(endNode.getStatus()).setReason(reason)));
                }
                approvalNodes.add(endNode);
            }
        });
        return approvalNodes;
    }

    /**
     * 获得【进行中】的活动节点们
     */
    private List<ActivityNode> getRunApproveNodeList(Long startUserId,
                                                     BpmnModel bpmnModel,
                                                     ProcessDefinition processDefinition,
                                                     Map<String, Object> processVariables,
                                                     List<HistoricActivityInstance> activities,
                                                     List<HistoricTaskInstance> tasks) {
        // 构建运行中的任务，基于 activityId 分组
        List<HistoricActivityInstance> runActivities = filterList(activities, activity -> activity.getEndTime() == null
                && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_TASK_USER)));
        Map<String, List<HistoricActivityInstance>> runningTaskMap = convertMultiMap(runActivities, HistoricActivityInstance::getActivityId);

        // 按照 activityId 分组，构建 ApprovalNodeInfo 节点
        Map<String, HistoricTaskInstance> taskMap = convertMap(tasks, HistoricTaskInstance::getId);
        return convertList(runningTaskMap.entrySet(), entry -> {
            String activityId = entry.getKey();
            List<HistoricActivityInstance> taskActivities = entry.getValue();
            // 构建活动节点
            HistoricActivityInstance firstActivity = CollUtil.getFirst(taskActivities); // 取第一个任务，会签/或签的任务，开始时间相同
            ActivityNode activityNode = new ActivityNode().setId(firstActivity.getActivityId()).setName(firstActivity.getActivityName())
                    .setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType()).setStatus(BpmTaskStatusEnum.RUNNING.getStatus())
                    .setTasks(new ArrayList<>());
            // 处理每个任务的 tasks 属性
            for (HistoricActivityInstance activity : taskActivities) {
                HistoricTaskInstance task = taskMap.get(activity.getTaskId());
                activityNode.getTasks().add(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task));
                // 加签子任务，需要过滤掉已经完成的加签子任务
                List<HistoricTaskInstance> childrenTasks = filterList(
                        taskService.getAllChildrenTaskListByParentTaskId(activity.getTaskId(), tasks),
                        childTask -> childTask.getEndTime() == null
                );
                if (CollUtil.isNotEmpty(childrenTasks)) {
                    activityNode.getTasks().addAll(convertList(childrenTasks, BpmProcessInstanceConvert.INSTANCE::buildApprovalTaskInfo));
                }
            }
            // 处理每个任务的 candidateUsers 属性：如果是依次审批，需要预测它的后续审批人。因为 Task 是审批完一个，创建一个新的 Task
            FlowElement flowNode = BpmnModelUtils.getFlowElementById(bpmnModel, activityId);
            if (BpmnModelUtils.isSequentialUserTask(flowNode)) {
                List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, flowNode.getId(),
                        startUserId, processDefinition.getId(), processVariables);
                // 截取当前审批人位置后面的候选人，不包含当前审批人
                ActivityNodeTask approvalTaskInfo = CollUtil.getFirst(activityNode.getTasks());
                Assert.notNull(approvalTaskInfo, "任务不能为空");
                int index = CollUtil.indexOf(candidateUserIds, userId -> userId.equals(approvalTaskInfo.getOwner())
                        || userId.equals(approvalTaskInfo.getAssignee())); // 委派或者向前加签情况需要先比较 owner
                activityNode.setCandidateUserIds(CollUtil.sub(candidateUserIds, index + 1, candidateUserIds.size()));
            }
            return activityNode;
        });
    }

    /**
     * 获得【预测（未来）】的活动节点们
     */
    private List<ActivityNode> getSimulateApproveNodeList(Long startUserId, BpmnModel bpmnModel,
                                                          BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                          Map<String, Object> processVariables,
                                                          List<HistoricActivityInstance> activities) {
        // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录
        Set<String> runActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId);
        // 情况一：BPMN 设计器
        if (Objects.equals(BpmModelTypeEnum.BPMN.getType(), processDefinitionInfo.getModelType())) {
            List<FlowElement> flowElements = BpmnModelUtils.simulateProcess(bpmnModel, processVariables);
            return convertList(flowElements, flowElement -> buildNotRunApproveNodeForBpmn(startUserId, bpmnModel,
                    processDefinitionInfo, processVariables, flowElement, runActivityIds));
        }
        // 情况二：SIMPLE 设计器
        if (Objects.equals(BpmModelTypeEnum.SIMPLE.getType(), processDefinitionInfo.getModelType())) {
            BpmSimpleModelNodeVO simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class);
            List<BpmSimpleModelNodeVO> simpleNodes = SimpleModelUtils.simulateProcess(simpleModel, processVariables);
            return convertList(simpleNodes, simpleNode -> buildNotRunApproveNodeForSimple(startUserId, bpmnModel,
                    processDefinitionInfo, processVariables, simpleNode, runActivityIds));
        }
        throw new IllegalArgumentException("未知设计器类型：" + processDefinitionInfo.getModelType());
    }

    private ActivityNode buildNotRunApproveNodeForSimple(Long startUserId, BpmnModel bpmnModel,
                                                         BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables,
                                                         BpmSimpleModelNodeVO node, Set<String> runActivityIds) {
        // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录
        if (runActivityIds.contains(node.getId())) {
            return null;
        }
        ActivityNode activityNode = new ActivityNode().setId(node.getId()).setName(node.getName())
                .setNodeType(node.getType()).setStatus(BpmTaskStatusEnum.NOT_START.getStatus());

        // 1. 开始节点/审批节点
        if (ObjectUtils.equalsAny(node.getType(),
                BpmSimpleModelNodeType.START_USER_NODE.getType(),
                BpmSimpleModelNodeType.APPROVE_NODE.getType())) {
            List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(),
                    startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables);
            activityNode.setCandidateUserIds(candidateUserIds);
            return activityNode;
        }

        // 2. 结束节点
        if (BpmSimpleModelNodeType.END_NODE.getType().equals(node.getType())) {
            return activityNode;
        }

        // 3. 抄送节点 TODO @jason：抄送节点
        return null;
    }

    private ActivityNode buildNotRunApproveNodeForBpmn(Long startUserId, BpmnModel bpmnModel,
                                                       BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables,
                                                       FlowElement node, Set<String> runActivityIds) {
        if (runActivityIds.contains(node.getId())) {
            return null;
        }
        ActivityNode activityNode = new ActivityNode().setId(node.getId()).setStatus(BpmTaskStatusEnum.NOT_START.getStatus());

        // 1. 开始节点
        if (node instanceof StartEvent) {
            return activityNode.setName(BpmSimpleModelNodeType.START_USER_NODE.getName())
                    .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType());
        }

        // 2. 审批节点
        if (node instanceof UserTask) {
            List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(),
                    startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables);
            return activityNode.setName(node.getName()).setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType())
                    .setCandidateUserIds(candidateUserIds);
        }

        // 3. 结束节点
        if (node instanceof EndEvent) {
            return activityNode.setName(BpmSimpleModelNodeType.END_NODE.getName())
                    .setNodeType(BpmSimpleModelNodeType.END_NODE.getType());
        }
        return null;
    }

    private List<Long> getTaskCandidateUserList(BpmnModel bpmnModel, String activityId,
                                                Long startUserId, String processDefinitionId, Map<String, Object> processVariables) {
        Set<Long> userIds = taskCandidateInvoker.calculateUsersByActivity(bpmnModel, activityId,
                startUserId, processDefinitionId, processVariables);
        return new ArrayList<>(userIds);
    }

    @Override
    public BpmProcessInstanceBpmnModelViewRespVO getProcessInstanceBpmnModelView(String id) {
        // 1.1 获得流程实例
        HistoricProcessInstance processInstance = getHistoricProcessInstance(id);
        if (processInstance == null) {
            return null;
        }
        // 1.2 获得流程定义
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processInstance.getProcessDefinitionId());
        if (bpmnModel == null) {
            return null;
        }
        BpmSimpleModelNodeVO simpleModel = null;
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(
                processInstance.getProcessDefinitionId());
        if (processDefinitionInfo != null) {
            simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class);
        }
        // 1.3 获得流程实例对应的活动实例列表 + 任务列表
        List<HistoricActivityInstance> activities = taskService.getActivityListByProcessInstanceId(id);
        List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(id, true);

        // 2.1 拼接进度信息
        Set<String> unfinishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() == null);
        Set<String> finishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() != null
                        && ObjectUtil.notEqual(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW));
        Set<String> finishedSequenceFlowActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() != null
                        && ObjectUtil.equals(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW));
        // 特殊：会签情况下，会有部分已完成（审批）、部分未完成（待审批），此时需要 finishedTaskActivityIds 移除掉
        unfinishedTaskActivityIds.removeAll(finishedTaskActivityIds);
        // 特殊：如果流程实例被拒绝，则需要计算是哪个活动节点。
        // 注意，只取最后一个。因为会存在多次拒绝的情况，拒绝驳回到指定节点
        Set<String> rejectTaskActivityIds = CollUtil.newHashSet();
        if (BpmProcessInstanceStatusEnum.isRejectStatus(FlowableUtils.getProcessInstanceStatus(processInstance))) {
            tasks.stream()
                    .filter(task -> BpmTaskStatusEnum.isRejectStatus(FlowableUtils.getTaskStatus(task)))
                    .max(Comparator.comparing(HistoricTaskInstance::getEndTime))
                    .ifPresent(reject -> rejectTaskActivityIds.add(reject.getTaskDefinitionKey()));
            finishedTaskActivityIds.removeAll(rejectTaskActivityIds);
        }

        // 2.2 拼接基础信息
        Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds02(processInstance, tasks);
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
        Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId));
        return BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceBpmnModelView(processInstance, tasks, bpmnModel, simpleModel,
                unfinishedTaskActivityIds, finishedTaskActivityIds, finishedSequenceFlowActivityIds, rejectTaskActivityIds,
                userMap, deptMap);
    }

    // ========== Update 写入相关方法 ==========

    @Override
    @Transactional(rollbackFor = Exception.class)
    public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqVO createReqVO) {
        // 获得流程定义
        ProcessDefinition definition = processDefinitionService.getProcessDefinition(createReqVO.getProcessDefinitionId());
        // 发起流程
        return createProcessInstance0(userId, definition, createReqVO.getVariables(), null,
                createReqVO.getStartUserSelectAssignees());
    }

    @Override
    public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqDTO createReqDTO) {
        // 获得流程定义
        ProcessDefinition definition = processDefinitionService.getActiveProcessDefinition(createReqDTO.getProcessDefinitionKey());
        // 发起流程
        return createProcessInstance0(userId, definition, createReqDTO.getVariables(), createReqDTO.getBusinessKey(),
                createReqDTO.getStartUserSelectAssignees());
    }

    private String createProcessInstance0(Long userId, ProcessDefinition definition,
                                          Map<String, Object> variables, String businessKey,
                                          Map<String, List<Long>> startUserSelectAssignees) {
        // 1.1 校验流程定义
        if (definition == null) {
            throw exception(PROCESS_DEFINITION_NOT_EXISTS);
        }
        if (definition.isSuspended()) {
            throw exception(PROCESS_DEFINITION_IS_SUSPENDED);
        }
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(definition.getId());
        if (processDefinitionInfo == null) {
            throw exception(PROCESS_DEFINITION_NOT_EXISTS);
        }
        // 1.2 校验是否能够发起
        if (!processDefinitionService.canUserStartProcessDefinition(processDefinitionInfo, userId)) {
            throw exception(PROCESS_INSTANCE_START_USER_CAN_START);
        }
        // 1.3 校验发起人自选审批人
        validateStartUserSelectAssignees(definition, startUserSelectAssignees);

        // 2. 创建流程实例
        if (variables == null) {
            variables = new HashMap<>();
        }
        FlowableUtils.filterProcessInstanceFormVariable(variables); // 过滤一下，避免 ProcessInstance 系统级的变量被占用
        variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, // 流程实例状态：审批中
                BpmProcessInstanceStatusEnum.RUNNING.getStatus());
        if (CollUtil.isNotEmpty(startUserSelectAssignees)) {
            variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_START_USER_SELECT_ASSIGNEES, startUserSelectAssignees);
        }
        ProcessInstance instance = runtimeService.createProcessInstanceBuilder()
                .processDefinitionId(definition.getId())
                .businessKey(businessKey)
                .name(definition.getName().trim())
                .variables(variables)
                .start();
        return instance.getId();
    }

    private void validateStartUserSelectAssignees(ProcessDefinition definition, Map<String, List<Long>> startUserSelectAssignees) {
        // 1. 获得发起人自选审批人的 UserTask 列表
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(definition.getId());
        List<UserTask> userTaskList = BpmTaskCandidateStartUserSelectStrategy.getStartUserSelectUserTaskList(bpmnModel);
        if (CollUtil.isEmpty(userTaskList)) {
            return;
        }

        // 2. 校验发起人自选审批人的 UserTask 是否都配置了
        userTaskList.forEach(userTask -> {
            List<Long> assignees = startUserSelectAssignees != null ? startUserSelectAssignees.get(userTask.getId()) : null;
            if (CollUtil.isEmpty(assignees)) {
                throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_CONFIG, userTask.getName());
            }
            Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(assignees);
            assignees.forEach(assignee -> {
                if (userMap.get(assignee) == null) {
                    throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_EXISTS, userTask.getName(), assignee);
                }
            });
        });
    }

    @Override
    public void cancelProcessInstanceByStartUser(Long userId, @Valid BpmProcessInstanceCancelReqVO cancelReqVO) {
        // 1.1 校验流程实例存在
        ProcessInstance instance = getProcessInstance(cancelReqVO.getId());
        if (instance == null) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS);
        }
        // 1.2 只能取消自己的
        if (!Objects.equals(instance.getStartUserId(), String.valueOf(userId))) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_SELF);
        }

        // 2. 取消流程
        updateProcessInstanceCancel(cancelReqVO.getId(),
                BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_START_USER.format(cancelReqVO.getReason()));
    }

    @Override
    public void cancelProcessInstanceByAdmin(Long userId, BpmProcessInstanceCancelReqVO cancelReqVO) {
        // 1.1 校验流程实例存在
        ProcessInstance instance = getProcessInstance(cancelReqVO.getId());
        if (instance == null) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS);
        }

        // 2. 取消流程
        AdminUserRespDTO user = adminUserApi.getUser(userId);
        updateProcessInstanceCancel(cancelReqVO.getId(),
                BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_ADMIN.format(user.getNickname(), cancelReqVO.getReason()));
    }

    private void updateProcessInstanceCancel(String id, String reason) {
        // 1. 更新流程实例 status
        runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS,
                BpmProcessInstanceStatusEnum.CANCEL.getStatus());
        runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON, reason);

        // 2. 结束流程
        taskService.moveTaskToEnd(id);
    }

    @Override
    public void updateProcessInstanceReject(ProcessInstance processInstance, String reason) {
        runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS,
                BpmProcessInstanceStatusEnum.REJECT.getStatus());
        runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON,
                BpmReasonEnum.REJECT_TASK.format(reason));
    }

    // ========== Event 事件相关方法 ==========

    @Override
    public void processProcessInstanceCompleted(ProcessInstance instance) {
        // 注意：需要基于 instance 设置租户编号，避免 Flowable 内部异步时，丢失租户编号
        FlowableUtils.execute(instance.getTenantId(), () -> {
            // 1.1 获取当前状态
            Integer status = (Integer) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS);
            String reason = (String) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON);
            // 1.2 当流程状态还是审批状态中，说明审批通过了，则变更下它的状态
            // 为什么这么处理？因为流程完成，并且完成了，说明审批通过了
            if (Objects.equals(status, BpmProcessInstanceStatusEnum.RUNNING.getStatus())) {
                status = BpmProcessInstanceStatusEnum.APPROVE.getStatus();
                runtimeService.setVariable(instance.getId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, status);
            }

            // 2. 发送对应的消息通知
            if (Objects.equals(status, BpmProcessInstanceStatusEnum.APPROVE.getStatus())) {
                messageService.sendMessageWhenProcessInstanceApprove(BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceApproveMessage(instance));
            } else if (Objects.equals(status, BpmProcessInstanceStatusEnum.REJECT.getStatus())) {
                messageService.sendMessageWhenProcessInstanceReject(
                        BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceRejectMessage(instance, reason));
            }

            // 3. 发送流程实例的状态事件
            processInstanceEventPublisher.sendProcessInstanceResultEvent(
                    BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceStatusEvent(this, instance, status));
        });
    }

}
 \ No newline at end of file
+package cn.iocoder.yudao.module.bpm.service.task;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.collection.ListUtil;
import cn.hutool.core.lang.Assert;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.iocoder.yudao.framework.common.pojo.PageResult;
import cn.iocoder.yudao.framework.common.util.date.DateUtils;
import cn.iocoder.yudao.framework.common.util.json.JsonUtils;
import cn.iocoder.yudao.framework.common.util.object.ObjectUtils;
import cn.iocoder.yudao.framework.common.util.object.PageUtils;
import cn.iocoder.yudao.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO;
import cn.iocoder.yudao.module.bpm.controller.admin.definition.vo.model.simple.BpmSimpleModelNodeVO;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.*;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNodeTask;
import cn.iocoder.yudao.module.bpm.controller.admin.task.vo.task.BpmTaskRespVO;
import cn.iocoder.yudao.module.bpm.convert.task.BpmProcessInstanceConvert;
import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
import cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants;
import cn.iocoder.yudao.module.bpm.enums.definition.BpmModelTypeEnum;
import cn.iocoder.yudao.module.bpm.enums.definition.BpmSimpleModelNodeType;
import cn.iocoder.yudao.module.bpm.enums.task.BpmProcessInstanceStatusEnum;
import cn.iocoder.yudao.module.bpm.enums.task.BpmReasonEnum;
import cn.iocoder.yudao.module.bpm.enums.task.BpmTaskStatusEnum;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.BpmTaskCandidateInvoker;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.candidate.strategy.dept.BpmTaskCandidateStartUserSelectStrategy;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnModelConstants;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnVariableConstants;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.event.BpmProcessInstanceEventPublisher;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.BpmnModelUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.FlowableUtils;
import cn.iocoder.yudao.module.bpm.framework.flowable.core.util.SimpleModelUtils;
import cn.iocoder.yudao.module.bpm.service.definition.BpmProcessDefinitionService;
import cn.iocoder.yudao.module.bpm.service.message.BpmMessageService;
import cn.iocoder.yudao.module.system.api.dept.DeptApi;
import cn.iocoder.yudao.module.system.api.dept.dto.DeptRespDTO;
import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import lombok.extern.slf4j.Slf4j;
import org.flowable.bpmn.constants.BpmnXMLConstants;
import org.flowable.bpmn.model.*;
import org.flowable.engine.HistoryService;
import org.flowable.engine.RuntimeService;
import org.flowable.engine.history.HistoricActivityInstance;
import org.flowable.engine.history.HistoricProcessInstance;
import org.flowable.engine.history.HistoricProcessInstanceQuery;
import org.flowable.engine.repository.ProcessDefinition;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.history.HistoricTaskInstance;
import org.springframework.context.annotation.Lazy;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.validation.annotation.Validated;

import java.util.*;

import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.*;
import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.filterList;
import static cn.iocoder.yudao.module.bpm.controller.admin.task.vo.instance.BpmApprovalDetailRespVO.ActivityNode;
import static cn.iocoder.yudao.module.bpm.enums.ErrorCodeConstants.*;
import static cn.iocoder.yudao.module.bpm.framework.flowable.core.enums.BpmnModelConstants.START_USER_NODE_ID;
import static java.util.Arrays.asList;
import static java.util.Collections.singletonList;
import static org.flowable.bpmn.constants.BpmnXMLConstants.*;

/**
 * 流程实例 Service 实现类
 * <p>
 * ProcessDefinition & ProcessInstance & Execution & Task 的关系：
 * 1. <a href="https://blog.csdn.net/bobozai86/article/details/105210414" />
 * <p>
 * HistoricProcessInstance & ProcessInstance 的关系：
 * 1. <a href=" https://my.oschina.net/843294669/blog/71902" />
 * <p>
 * 简单来说，前者 = 历史 + 运行中的流程实例，后者仅是运行中的流程实例
 *
 * @author 芋道源码
 */
@Service
@Validated
@Slf4j
public class BpmProcessInstanceServiceImpl implements BpmProcessInstanceService {

    @Resource
    private RuntimeService runtimeService;
    @Resource
    private HistoryService historyService;

    @Resource
    private BpmProcessDefinitionService processDefinitionService;
    @Resource
    @Lazy // 避免循环依赖
    private BpmTaskService taskService;
    @Resource
    private BpmMessageService messageService;

    @Resource
    private AdminUserApi adminUserApi;
    @Resource
    private DeptApi deptApi;

    @Resource
    private BpmProcessInstanceEventPublisher processInstanceEventPublisher;

    @Resource
    private BpmTaskCandidateInvoker taskCandidateInvoker;

    // ========== Query 查询相关方法 ==========

    @Override
    public ProcessInstance getProcessInstance(String id) {
        return runtimeService.createProcessInstanceQuery()
                .includeProcessVariables()
                .processInstanceId(id)
                .singleResult();
    }

    @Override
    public List<ProcessInstance> getProcessInstances(Set<String> ids) {
        return runtimeService.createProcessInstanceQuery().processInstanceIds(ids).list();
    }

    @Override
    public HistoricProcessInstance getHistoricProcessInstance(String id) {
        return historyService.createHistoricProcessInstanceQuery().processInstanceId(id).includeProcessVariables().singleResult();
    }

    @Override
    public List<HistoricProcessInstance> getHistoricProcessInstances(Set<String> ids) {
        return historyService.createHistoricProcessInstanceQuery().processInstanceIds(ids).list();
    }

    @Override
    public PageResult<HistoricProcessInstance> getProcessInstancePage(Long userId,
                                                                      BpmProcessInstancePageReqVO pageReqVO) {
        // 通过 BpmProcessInstanceExtDO 表，先查询到对应的分页
        HistoricProcessInstanceQuery processInstanceQuery = historyService.createHistoricProcessInstanceQuery()
                .includeProcessVariables()
                .processInstanceTenantId(FlowableUtils.getTenantId())
                .orderByProcessInstanceStartTime().desc();
        if (userId != null) { // 【我的流程】菜单时，需要传递该字段
            processInstanceQuery.startedBy(String.valueOf(userId));
        } else if (pageReqVO.getStartUserId() != null) { // 【管理流程】菜单时，才会传递该字段
            processInstanceQuery.startedBy(String.valueOf(pageReqVO.getStartUserId()));
        }
        if (StrUtil.isNotEmpty(pageReqVO.getName())) {
            processInstanceQuery.processInstanceNameLike("%" + pageReqVO.getName() + "%");
        }
        if (StrUtil.isNotEmpty(pageReqVO.getProcessDefinitionKey())) {
            processInstanceQuery.processDefinitionKey(pageReqVO.getProcessDefinitionKey());
        }
        if (StrUtil.isNotEmpty(pageReqVO.getCategory())) {
            processInstanceQuery.processDefinitionCategory(pageReqVO.getCategory());
        }
        if (pageReqVO.getStatus() != null) {
            processInstanceQuery.variableValueEquals(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, pageReqVO.getStatus());
        }
        if (ArrayUtil.isNotEmpty(pageReqVO.getCreateTime())) {
            processInstanceQuery.startedAfter(DateUtils.of(pageReqVO.getCreateTime()[0]));
            processInstanceQuery.startedBefore(DateUtils.of(pageReqVO.getCreateTime()[1]));
        }
        // 查询数量
        long processInstanceCount = processInstanceQuery.count();
        if (processInstanceCount == 0) {
            return PageResult.empty(processInstanceCount);
        }
        // 查询列表
        List<HistoricProcessInstance> processInstanceList = processInstanceQuery.listPage(PageUtils.getStart(pageReqVO), pageReqVO.getPageSize());
        return new PageResult<>(processInstanceList, processInstanceCount);
    }


    private Map<String, String> getFormFieldsPermission(BpmnModel bpmnModel,
                                                        String activityId, String taskId) {
        // 1. 获取流程活动编号。流程活动 Id 为空事，从流程任务中获取流程活动 Id
        if (StrUtil.isEmpty(activityId) && StrUtil.isNotEmpty(taskId)) {
            activityId = Optional.ofNullable(taskService.getHistoricTask(taskId))
                    .map(HistoricTaskInstance::getTaskDefinitionKey).orElse(null);
        }
        if (StrUtil.isEmpty(activityId)) {
            return null;
        }

        // 2. 从 BpmnModel 中解析表单字段权限
        return BpmnModelUtils.parseFormFieldsPermission(bpmnModel, activityId);
    }

    @Override
    public BpmApprovalDetailRespVO getApprovalDetail(Long loginUserId, BpmApprovalDetailReqVO reqVO) {
        // 1.1 从 reqVO 中，读取公共变量
        Long startUserId = loginUserId; // 流程发起人
        HistoricProcessInstance historicProcessInstance = null; // 流程实例
        Integer processInstanceStatus = BpmProcessInstanceStatusEnum.NOT_START.getStatus(); // 流程状态
        Map<String, Object> processVariables = reqVO.getProcessVariables(); // 流程变量
        // 1.2 如果是流程已发起的场景，则使用流程实例的数据
        if (reqVO.getProcessInstanceId() != null) {
            historicProcessInstance = getHistoricProcessInstance(reqVO.getProcessInstanceId());
            if (historicProcessInstance == null) {
                throw exception(ErrorCodeConstants.PROCESS_INSTANCE_NOT_EXISTS);
            }
            startUserId = Long.valueOf(historicProcessInstance.getStartUserId());
            processInstanceStatus = FlowableUtils.getProcessInstanceStatus(historicProcessInstance);
            processVariables = historicProcessInstance.getProcessVariables();
        }
        // 1.3 读取其它相关数据
        ProcessDefinition processDefinition = processDefinitionService.getProcessDefinition(
                historicProcessInstance != null ? historicProcessInstance.getProcessDefinitionId() : reqVO.getProcessDefinitionId());
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(processDefinition.getId());
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processDefinition.getId());

        // 2.1 已结束 + 进行中的活动节点
        List<ActivityNode> endActivityNodes = null; // 已结束的审批信息
        List<ActivityNode> runActivityNodes = null; // 进行中的审批信息
        List<HistoricActivityInstance> activities = null; // 流程实例列表
        if (reqVO.getProcessInstanceId() != null) {
            activities = taskService.getActivityListByProcessInstanceId(reqVO.getProcessInstanceId());
            List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(reqVO.getProcessInstanceId(), true);
            endActivityNodes = getEndActivityNodeList(startUserId, processDefinitionInfo,
                    historicProcessInstance, processInstanceStatus, activities, tasks);
            runActivityNodes = getRunApproveNodeList(startUserId, bpmnModel, processDefinition, processVariables, activities, tasks);
        }

        // 2.2 流程已经结束，直接 return，无需预测
        if (BpmProcessInstanceStatusEnum.isProcessEndStatus(processInstanceStatus)) {
            return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance,
                    processInstanceStatus, endActivityNodes, runActivityNodes, null, null);
        }

        // 3.1 计算当前登录用户的待办任务
        // TODO @jason：有一个极端情况，如果一个用户有 2 个 task A 和 B，A 已经通过，B 需要审核。这个时，通过 A 进来，todo 拿到 B，会不会表单权限不一致哈。
        BpmTaskRespVO todoTask = taskService.getFirstTodoTask(loginUserId, reqVO.getProcessInstanceId());

        // 3.2 预测未运行节点的审批信息
        List<ActivityNode> simulateActivityNodes = getSimulateApproveNodeList(startUserId, bpmnModel, processDefinitionInfo,
                processVariables, activities);

        // 4. 拼接最终数据
        return buildApprovalDetail(reqVO, bpmnModel, processDefinition, processDefinitionInfo, historicProcessInstance,
                processInstanceStatus, endActivityNodes, runActivityNodes, simulateActivityNodes, todoTask);
    }

    /**
     * 拼接审批详情的最终数据
     * <p>
     * 主要是，拼接审批人的用户信息、部门信息
     */
    private BpmApprovalDetailRespVO buildApprovalDetail(BpmApprovalDetailReqVO reqVO,
                                                        BpmnModel bpmnModel,
                                                        ProcessDefinition processDefinition,
                                                        BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                        HistoricProcessInstance processInstance,
                                                        Integer processInstanceStatus,
                                                        List<ActivityNode> endApprovalNodeInfos,
                                                        List<ActivityNode> runningApprovalNodeInfos,
                                                        List<ActivityNode> simulateApprovalNodeInfos,
                                                        BpmTaskRespVO todoTask) {
        // 1. 获取所有需要读取用户信息的 userIds
        List<ActivityNode> approveNodes = newArrayList(asList(endApprovalNodeInfos, runningApprovalNodeInfos, simulateApprovalNodeInfos));
        Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds(processInstance, approveNodes, todoTask);
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
        Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId));

        // 2. 表单权限
        Map<String, String> formFieldsPermission = getFormFieldsPermission(bpmnModel, reqVO.getActivityId(), reqVO.getTaskId());

        // 3. 拼接数据
        return BpmProcessInstanceConvert.INSTANCE.buildApprovalDetail(bpmnModel, processDefinition, processDefinitionInfo, processInstance,
                processInstanceStatus, approveNodes, todoTask, formFieldsPermission, userMap, deptMap);
    }

    /**
     * 获得【已结束】的活动节点们
     */
    private List<ActivityNode> getEndActivityNodeList(Long startUserId,
                                                      BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                      HistoricProcessInstance historicProcessInstance, Integer processInstanceStatus,
                                                      List<HistoricActivityInstance> activities, List<HistoricTaskInstance> tasks) {
        // 遍历 tasks 列表，只处理已结束的 UserTask
        // 为什么不通过 activities 呢？因为，加签场景下，它只存在于 tasks，没有 activities，导致如果遍历 activities 的话，它无法成为一个节点
        List<HistoricTaskInstance> endTasks = filterList(tasks, task -> task.getEndTime() != null);
        List<ActivityNode> approvalNodes = convertList(endTasks, task -> {
            ActivityNode activityNode = new ActivityNode().setId(task.getTaskDefinitionKey()).setName(task.getName())
                    .setNodeType(START_USER_NODE_ID.equals(task.getTaskDefinitionKey()) ?
                            BpmSimpleModelNodeType.START_USER_NODE.getType() : BpmSimpleModelNodeType.APPROVE_NODE.getType())
                    .setStatus(FlowableUtils.getTaskStatus(task))
                    .setStartTime(DateUtils.of(task.getCreateTime())).setEndTime(DateUtils.of(task.getEndTime()))
                    .setTasks(singletonList(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task)));
            // 如果是取消状态，则跳过
            if (BpmTaskStatusEnum.isCancelStatus(activityNode.getStatus())) {
                return null;
            }
            return activityNode;
        });

        // 遍历 activities，只处理已结束的 StartEvent、EndEvent
        List<HistoricActivityInstance> endActivities = filterList(activities, activity -> activity.getEndTime() != null
                && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_EVENT_START, ELEMENT_EVENT_END)));
        endActivities.forEach(activity -> {
            // StartEvent：只处理 BPMN 的场景。因为，SIMPLE 情况下，已经有 START_USER_NODE 节点
            if (ELEMENT_EVENT_START.equals(activity.getActivityType())
                    && BpmModelTypeEnum.BPMN.getType().equals(processDefinitionInfo.getModelType())) {
                ActivityNodeTask startTask = new ActivityNodeTask().setId(BpmnModelConstants.START_USER_NODE_ID)
                        .setAssignee(startUserId).setStatus(BpmTaskStatusEnum.APPROVE.getStatus());
                ActivityNode startNode = new ActivityNode().setId(startTask.getId())
                        .setName(BpmSimpleModelNodeType.START_USER_NODE.getName())
                        .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType())
                        .setStatus(startTask.getStatus()).setTasks(ListUtil.of(startTask))
                        .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime()));
                approvalNodes.add(0, startNode);
                return;
            }
            // EndEvent
            if (ELEMENT_EVENT_END.equals(activity.getActivityType())) {
                if (BpmProcessInstanceStatusEnum.isRejectStatus(processInstanceStatus)) {
                    // 拒绝情况下，不需要展示 EndEvent 结束节点。原因是：前端已经展示 x 效果，无需重复展示
                    return;
                }
                ActivityNode endNode = new ActivityNode().setId(activity.getId())
                        .setName(BpmSimpleModelNodeType.END_NODE.getName())
                        .setNodeType(BpmSimpleModelNodeType.END_NODE.getType()).setStatus(processInstanceStatus)
                        .setStartTime(DateUtils.of(activity.getStartTime())).setEndTime(DateUtils.of(activity.getEndTime()));
                String reason = FlowableUtils.getProcessInstanceReason(historicProcessInstance);
                if (StrUtil.isNotEmpty(reason)) {
                    endNode.setTasks(singletonList(new ActivityNodeTask().setId(endNode.getId())
                            .setStatus(endNode.getStatus()).setReason(reason)));
                }
                approvalNodes.add(endNode);
            }
        });
        return approvalNodes;
    }

    /**
     * 获得【进行中】的活动节点们
     */
    private List<ActivityNode> getRunApproveNodeList(Long startUserId,
                                                     BpmnModel bpmnModel,
                                                     ProcessDefinition processDefinition,
                                                     Map<String, Object> processVariables,
                                                     List<HistoricActivityInstance> activities,
                                                     List<HistoricTaskInstance> tasks) {
        // 构建运行中的任务，基于 activityId 分组
        List<HistoricActivityInstance> runActivities = filterList(activities, activity -> activity.getEndTime() == null
                && (StrUtil.equalsAny(activity.getActivityType(), ELEMENT_TASK_USER)));
        Map<String, List<HistoricActivityInstance>> runningTaskMap = convertMultiMap(runActivities, HistoricActivityInstance::getActivityId);

        // 按照 activityId 分组，构建 ApprovalNodeInfo 节点
        Map<String, HistoricTaskInstance> taskMap = convertMap(tasks, HistoricTaskInstance::getId);
        return convertList(runningTaskMap.entrySet(), entry -> {
            String activityId = entry.getKey();
            List<HistoricActivityInstance> taskActivities = entry.getValue();
            // 构建活动节点
            HistoricActivityInstance firstActivity = CollUtil.getFirst(taskActivities); // 取第一个任务，会签/或签的任务，开始时间相同
            ActivityNode activityNode = new ActivityNode().setId(firstActivity.getActivityId()).setName(firstActivity.getActivityName())
                    .setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType()).setStatus(BpmTaskStatusEnum.RUNNING.getStatus())
                    .setStartTime(DateUtils.of(CollUtil.getFirst(taskActivities).getStartTime()))
                    .setTasks(new ArrayList<>());
            // 处理每个任务的 tasks 属性
            for (HistoricActivityInstance activity : taskActivities) {
                HistoricTaskInstance task = taskMap.get(activity.getTaskId());
                activityNode.getTasks().add(BpmProcessInstanceConvert.INSTANCE.buildApprovalTaskInfo(task));
                // 加签子任务，需要过滤掉已经完成的加签子任务
                List<HistoricTaskInstance> childrenTasks = filterList(
                        taskService.getAllChildrenTaskListByParentTaskId(activity.getTaskId(), tasks),
                        childTask -> childTask.getEndTime() == null
                );
                if (CollUtil.isNotEmpty(childrenTasks)) {
                    activityNode.getTasks().addAll(convertList(childrenTasks, BpmProcessInstanceConvert.INSTANCE::buildApprovalTaskInfo));
                }
            }
            // 处理每个任务的 candidateUsers 属性：如果是依次审批，需要预测它的后续审批人。因为 Task 是审批完一个，创建一个新的 Task
            FlowElement flowNode = BpmnModelUtils.getFlowElementById(bpmnModel, activityId);
            if (BpmnModelUtils.isSequentialUserTask(flowNode)) {
                List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, flowNode.getId(),
                        startUserId, processDefinition.getId(), processVariables);
                // 截取当前审批人位置后面的候选人，不包含当前审批人
                ActivityNodeTask approvalTaskInfo = CollUtil.getFirst(activityNode.getTasks());
                Assert.notNull(approvalTaskInfo, "任务不能为空");
                int index = CollUtil.indexOf(candidateUserIds, userId -> userId.equals(approvalTaskInfo.getOwner())
                        || userId.equals(approvalTaskInfo.getAssignee())); // 委派或者向前加签情况需要先比较 owner
                activityNode.setCandidateUserIds(CollUtil.sub(candidateUserIds, index + 1, candidateUserIds.size()));
            }
            return activityNode;
        });
    }

    /**
     * 获得【预测（未来）】的活动节点们
     */
    private List<ActivityNode> getSimulateApproveNodeList(Long startUserId, BpmnModel bpmnModel,
                                                          BpmProcessDefinitionInfoDO processDefinitionInfo,
                                                          Map<String, Object> processVariables,
                                                          List<HistoricActivityInstance> activities) {
        // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录
        Set<String> runActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId);
        // 情况一：BPMN 设计器
        if (Objects.equals(BpmModelTypeEnum.BPMN.getType(), processDefinitionInfo.getModelType())) {
            List<FlowElement> flowElements = BpmnModelUtils.simulateProcess(bpmnModel, processVariables);
            return convertList(flowElements, flowElement -> buildNotRunApproveNodeForBpmn(startUserId, bpmnModel,
                    processDefinitionInfo, processVariables, flowElement, runActivityIds));
        }
        // 情况二：SIMPLE 设计器
        if (Objects.equals(BpmModelTypeEnum.SIMPLE.getType(), processDefinitionInfo.getModelType())) {
            BpmSimpleModelNodeVO simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class);
            List<BpmSimpleModelNodeVO> simpleNodes = SimpleModelUtils.simulateProcess(simpleModel, processVariables);
            return convertList(simpleNodes, simpleNode -> buildNotRunApproveNodeForSimple(startUserId, bpmnModel,
                    processDefinitionInfo, processVariables, simpleNode, runActivityIds));
        }
        throw new IllegalArgumentException("未知设计器类型：" + processDefinitionInfo.getModelType());
    }

    private ActivityNode buildNotRunApproveNodeForSimple(Long startUserId, BpmnModel bpmnModel,
                                                         BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables,
                                                         BpmSimpleModelNodeVO node, Set<String> runActivityIds) {
        // TODO @芋艿：【可优化】在驳回场景下，未来的预测准确性不高。原因是，驳回后，HistoricActivityInstance 包括了历史的操作，不是只有 startEvent 到当前节点的记录
        if (runActivityIds.contains(node.getId())) {
            return null;
        }
        ActivityNode activityNode = new ActivityNode().setId(node.getId()).setName(node.getName())
                .setNodeType(node.getType()).setStatus(BpmTaskStatusEnum.NOT_START.getStatus());

        // 1. 开始节点/审批节点
        if (ObjectUtils.equalsAny(node.getType(),
                BpmSimpleModelNodeType.START_USER_NODE.getType(),
                BpmSimpleModelNodeType.APPROVE_NODE.getType())) {
            List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(),
                    startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables);
            activityNode.setCandidateUserIds(candidateUserIds);
            return activityNode;
        }

        // 2. 结束节点
        if (BpmSimpleModelNodeType.END_NODE.getType().equals(node.getType())) {
            return activityNode;
        }

        // 3. 抄送节点 TODO @jason：抄送节点
        return null;
    }

    private ActivityNode buildNotRunApproveNodeForBpmn(Long startUserId, BpmnModel bpmnModel,
                                                       BpmProcessDefinitionInfoDO processDefinitionInfo, Map<String, Object> processVariables,
                                                       FlowElement node, Set<String> runActivityIds) {
        if (runActivityIds.contains(node.getId())) {
            return null;
        }
        ActivityNode activityNode = new ActivityNode().setId(node.getId()).setStatus(BpmTaskStatusEnum.NOT_START.getStatus());

        // 1. 开始节点
        if (node instanceof StartEvent) {
            return activityNode.setName(BpmSimpleModelNodeType.START_USER_NODE.getName())
                    .setNodeType(BpmSimpleModelNodeType.START_USER_NODE.getType());
        }

        // 2. 审批节点
        if (node instanceof UserTask) {
            List<Long> candidateUserIds = getTaskCandidateUserList(bpmnModel, node.getId(),
                    startUserId, processDefinitionInfo.getProcessDefinitionId(), processVariables);
            return activityNode.setName(node.getName()).setNodeType(BpmSimpleModelNodeType.APPROVE_NODE.getType())
                    .setCandidateUserIds(candidateUserIds);
        }

        // 3. 结束节点
        if (node instanceof EndEvent) {
            return activityNode.setName(BpmSimpleModelNodeType.END_NODE.getName())
                    .setNodeType(BpmSimpleModelNodeType.END_NODE.getType());
        }
        return null;
    }

    private List<Long> getTaskCandidateUserList(BpmnModel bpmnModel, String activityId,
                                                Long startUserId, String processDefinitionId, Map<String, Object> processVariables) {
        Set<Long> userIds = taskCandidateInvoker.calculateUsersByActivity(bpmnModel, activityId,
                startUserId, processDefinitionId, processVariables);
        return new ArrayList<>(userIds);
    }

    @Override
    public BpmProcessInstanceBpmnModelViewRespVO getProcessInstanceBpmnModelView(String id) {
        // 1.1 获得流程实例
        HistoricProcessInstance processInstance = getHistoricProcessInstance(id);
        if (processInstance == null) {
            return null;
        }
        // 1.2 获得流程定义
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(processInstance.getProcessDefinitionId());
        if (bpmnModel == null) {
            return null;
        }
        BpmSimpleModelNodeVO simpleModel = null;
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(
                processInstance.getProcessDefinitionId());
        if (processDefinitionInfo != null && BpmModelTypeEnum.SIMPLE.getType().equals(processDefinitionInfo.getModelType())) {
            simpleModel = JsonUtils.parseObject(processDefinitionInfo.getSimpleModel(), BpmSimpleModelNodeVO.class);
        }
        // 1.3 获得流程实例对应的活动实例列表 + 任务列表
        List<HistoricActivityInstance> activities = taskService.getActivityListByProcessInstanceId(id);
        List<HistoricTaskInstance> tasks = taskService.getTaskListByProcessInstanceId(id, true);

        // 2.1 拼接进度信息
        Set<String> unfinishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() == null);
        Set<String> finishedTaskActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() != null
                        && ObjectUtil.notEqual(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW));
        Set<String> finishedSequenceFlowActivityIds = convertSet(activities, HistoricActivityInstance::getActivityId,
                activityInstance -> activityInstance.getEndTime() != null
                        && ObjectUtil.equals(activityInstance.getActivityType(), BpmnXMLConstants.ELEMENT_SEQUENCE_FLOW));
        // 特殊：会签情况下，会有部分已完成（审批）、部分未完成（待审批），此时需要 finishedTaskActivityIds 移除掉
        unfinishedTaskActivityIds.removeAll(finishedTaskActivityIds);
        // 特殊：如果流程实例被拒绝，则需要计算是哪个活动节点。
        // 注意，只取最后一个。因为会存在多次拒绝的情况，拒绝驳回到指定节点
        Set<String> rejectTaskActivityIds = CollUtil.newHashSet();
        if (BpmProcessInstanceStatusEnum.isRejectStatus(FlowableUtils.getProcessInstanceStatus(processInstance))) {
            tasks.stream()
                    .filter(task -> BpmTaskStatusEnum.isRejectStatus(FlowableUtils.getTaskStatus(task)))
                    .max(Comparator.comparing(HistoricTaskInstance::getEndTime))
                    .ifPresent(reject -> rejectTaskActivityIds.add(reject.getTaskDefinitionKey()));
            finishedTaskActivityIds.removeAll(rejectTaskActivityIds);
        }

        // 2.2 拼接基础信息
        Set<Long> userIds = BpmProcessInstanceConvert.INSTANCE.parseUserIds02(processInstance, tasks);
        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIds);
        Map<Long, DeptRespDTO> deptMap = deptApi.getDeptMap(convertSet(userMap.values(), AdminUserRespDTO::getDeptId));
        return BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceBpmnModelView(processInstance, tasks, bpmnModel, simpleModel,
                unfinishedTaskActivityIds, finishedTaskActivityIds, finishedSequenceFlowActivityIds, rejectTaskActivityIds,
                userMap, deptMap);
    }

    // ========== Update 写入相关方法 ==========

    @Override
    @Transactional(rollbackFor = Exception.class)
    public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqVO createReqVO) {
        // 获得流程定义
        ProcessDefinition definition = processDefinitionService.getProcessDefinition(createReqVO.getProcessDefinitionId());
        // 发起流程
        return createProcessInstance0(userId, definition, createReqVO.getVariables(), null,
                createReqVO.getStartUserSelectAssignees());
    }

    @Override
    public String createProcessInstance(Long userId, @Valid BpmProcessInstanceCreateReqDTO createReqDTO) {
        // 获得流程定义
        ProcessDefinition definition = processDefinitionService.getActiveProcessDefinition(createReqDTO.getProcessDefinitionKey());
        // 发起流程
        return createProcessInstance0(userId, definition, createReqDTO.getVariables(), createReqDTO.getBusinessKey(),
                createReqDTO.getStartUserSelectAssignees());
    }

    private String createProcessInstance0(Long userId, ProcessDefinition definition,
                                          Map<String, Object> variables, String businessKey,
                                          Map<String, List<Long>> startUserSelectAssignees) {
        // 1.1 校验流程定义
        if (definition == null) {
            throw exception(PROCESS_DEFINITION_NOT_EXISTS);
        }
        if (definition.isSuspended()) {
            throw exception(PROCESS_DEFINITION_IS_SUSPENDED);
        }
        BpmProcessDefinitionInfoDO processDefinitionInfo = processDefinitionService.getProcessDefinitionInfo(definition.getId());
        if (processDefinitionInfo == null) {
            throw exception(PROCESS_DEFINITION_NOT_EXISTS);
        }
        // 1.2 校验是否能够发起
        if (!processDefinitionService.canUserStartProcessDefinition(processDefinitionInfo, userId)) {
            throw exception(PROCESS_INSTANCE_START_USER_CAN_START);
        }
        // 1.3 校验发起人自选审批人
        validateStartUserSelectAssignees(definition, startUserSelectAssignees);

        // 2. 创建流程实例
        if (variables == null) {
            variables = new HashMap<>();
        }
        FlowableUtils.filterProcessInstanceFormVariable(variables); // 过滤一下，避免 ProcessInstance 系统级的变量被占用
        variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, // 流程实例状态：审批中
                BpmProcessInstanceStatusEnum.RUNNING.getStatus());
        if (CollUtil.isNotEmpty(startUserSelectAssignees)) {
            variables.put(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_START_USER_SELECT_ASSIGNEES, startUserSelectAssignees);
        }
        ProcessInstance instance = runtimeService.createProcessInstanceBuilder()
                .processDefinitionId(definition.getId())
                .businessKey(businessKey)
                .name(definition.getName().trim())
                .variables(variables)
                .start();
        return instance.getId();
    }

    private void validateStartUserSelectAssignees(ProcessDefinition definition, Map<String, List<Long>> startUserSelectAssignees) {
        // 1. 获得发起人自选审批人的 UserTask 列表
        BpmnModel bpmnModel = processDefinitionService.getProcessDefinitionBpmnModel(definition.getId());
        List<UserTask> userTaskList = BpmTaskCandidateStartUserSelectStrategy.getStartUserSelectUserTaskList(bpmnModel);
        if (CollUtil.isEmpty(userTaskList)) {
            return;
        }

        // 2. 校验发起人自选审批人的 UserTask 是否都配置了
        userTaskList.forEach(userTask -> {
            List<Long> assignees = startUserSelectAssignees != null ? startUserSelectAssignees.get(userTask.getId()) : null;
            if (CollUtil.isEmpty(assignees)) {
                throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_CONFIG, userTask.getName());
            }
            Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(assignees);
            assignees.forEach(assignee -> {
                if (userMap.get(assignee) == null) {
                    throw exception(PROCESS_INSTANCE_START_USER_SELECT_ASSIGNEES_NOT_EXISTS, userTask.getName(), assignee);
                }
            });
        });
    }

    @Override
    public void cancelProcessInstanceByStartUser(Long userId, @Valid BpmProcessInstanceCancelReqVO cancelReqVO) {
        // 1.1 校验流程实例存在
        ProcessInstance instance = getProcessInstance(cancelReqVO.getId());
        if (instance == null) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS);
        }
        // 1.2 只能取消自己的
        if (!Objects.equals(instance.getStartUserId(), String.valueOf(userId))) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_SELF);
        }

        // 2. 取消流程
        updateProcessInstanceCancel(cancelReqVO.getId(),
                BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_START_USER.format(cancelReqVO.getReason()));
    }

    @Override
    public void cancelProcessInstanceByAdmin(Long userId, BpmProcessInstanceCancelReqVO cancelReqVO) {
        // 1.1 校验流程实例存在
        ProcessInstance instance = getProcessInstance(cancelReqVO.getId());
        if (instance == null) {
            throw exception(PROCESS_INSTANCE_CANCEL_FAIL_NOT_EXISTS);
        }

        // 2. 取消流程
        AdminUserRespDTO user = adminUserApi.getUser(userId);
        updateProcessInstanceCancel(cancelReqVO.getId(),
                BpmReasonEnum.CANCEL_PROCESS_INSTANCE_BY_ADMIN.format(user.getNickname(), cancelReqVO.getReason()));
    }

    private void updateProcessInstanceCancel(String id, String reason) {
        // 1. 更新流程实例 status
        runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS,
                BpmProcessInstanceStatusEnum.CANCEL.getStatus());
        runtimeService.setVariable(id, BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON, reason);

        // 2. 结束流程
        taskService.moveTaskToEnd(id);
    }

    @Override
    public void updateProcessInstanceReject(ProcessInstance processInstance, String reason) {
        runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS,
                BpmProcessInstanceStatusEnum.REJECT.getStatus());
        runtimeService.setVariable(processInstance.getProcessInstanceId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON,
                BpmReasonEnum.REJECT_TASK.format(reason));
    }

    // ========== Event 事件相关方法 ==========

    @Override
    public void processProcessInstanceCompleted(ProcessInstance instance) {
        // 注意：需要基于 instance 设置租户编号，避免 Flowable 内部异步时，丢失租户编号
        FlowableUtils.execute(instance.getTenantId(), () -> {
            // 1.1 获取当前状态
            Integer status = (Integer) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS);
            String reason = (String) instance.getProcessVariables().get(BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_REASON);
            // 1.2 当流程状态还是审批状态中，说明审批通过了，则变更下它的状态
            // 为什么这么处理？因为流程完成，并且完成了，说明审批通过了
            if (Objects.equals(status, BpmProcessInstanceStatusEnum.RUNNING.getStatus())) {
                status = BpmProcessInstanceStatusEnum.APPROVE.getStatus();
                runtimeService.setVariable(instance.getId(), BpmnVariableConstants.PROCESS_INSTANCE_VARIABLE_STATUS, status);
            }

            // 2. 发送对应的消息通知
            if (Objects.equals(status, BpmProcessInstanceStatusEnum.APPROVE.getStatus())) {
                messageService.sendMessageWhenProcessInstanceApprove(BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceApproveMessage(instance));
            } else if (Objects.equals(status, BpmProcessInstanceStatusEnum.REJECT.getStatus())) {
                messageService.sendMessageWhenProcessInstanceReject(
                        BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceRejectMessage(instance, reason));
            }

            // 3. 发送流程实例的状态事件
            processInstanceEventPublisher.sendProcessInstanceResultEvent(
                    BpmProcessInstanceConvert.INSTANCE.buildProcessInstanceStatusEvent(this, instance, status));
        });
    }

}
 \ No newline at end of file
@@ -764,9 +764,7 @@ public class BpmTaskServiceImpl implements BpmTaskService {
         taskService.setOwner(taskId, task.getAssignee());
         // 3.2 执行委派，将任务委派给 delegateUser
         taskService.delegateTask(taskId, reqVO.getDelegateUserId().toString());
-        // 3.3 更新 task 状态。
-        // 为什么不更新原因？因为原因目前主要给审批通过、不通过时使用
-        updateTaskStatus(taskId, BpmTaskStatusEnum.DELEGATE.getStatus());
+        // 补充说明：委托不单独设置状态。如果需要，可通过 Task 的 DelegationState 字段，判断是否为 DelegationState.PENDING 委托中
     }
     @Override