<template>
  <div
    class="h-50px bottom-10 text-14px flex items-center color-#32373c dark:color-#fff font-bold btn-container"
  >
    <!-- 【通过】按钮 -->
    <el-popover
      :visible="popOverVisible.approve"
      placement="top-end"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.APPROVE)"
    >
      <template #reference>
        <el-button plain type="success" @click="openPopover('approve')">
          <Icon icon="ep:select" />&nbsp; {{ getButtonDisplayName(OperationButtonType.APPROVE) }}
        </el-button>
      </template>
      <!-- 审批表单 -->
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="approveFormRef"
          :model="approveReasonForm"
          :rules="approveReasonRule"
          label-width="100px"
        >
          <el-card v-if="runningTask?.formId > 0" class="mb-15px !-mt-10px">
            <template #header>
              <span class="el-icon-picture-outline"> 填写表单【{{ runningTask?.formName }}】 </span>
            </template>
            <form-create
              v-model="approveForm.value"
              v-model:api="approveFormFApi"
              :option="approveForm.option"
              :rule="approveForm.rule"
            />
          </el-card>
          <el-form-item :label="`${nodeTypeName}意见`" prop="reason">
            <el-input
              v-model="approveReasonForm.reason"
              :placeholder="`请输入${nodeTypeName}意见`"
              type="textarea"
              :rows="4"
            />
          </el-form-item>
          <el-form-item
            label="下一个节点的审批人"
            prop="nextAssignees"
            v-if="nextAssigneesActivityNode.length > 0"
          >
            <div class="ml-10px -mt-15px -mb-35px">
              <ProcessInstanceTimeline
                ref="nextAssigneesTimelineRef"
                :activity-nodes="nextAssigneesActivityNode"
                :show-status-icon="false"
                :enable-approve-user-select="true"
                @select-user-confirm="selectNextAssigneesConfirm"
              />
            </div>
          </el-form-item>
          <el-form-item
            v-if="runningTask.signEnable"
            label="签名"
            prop="signPicUrl"
            ref="approveSignFormRef"
          >
            <el-button @click="signRef.open()">点击签名</el-button>
            <el-image
              class="w-90px h-40px ml-5px"
              v-if="approveReasonForm.signPicUrl"
              :src="approveReasonForm.signPicUrl"
              :preview-src-list="[approveReasonForm.signPicUrl]"
            />
          </el-form-item>
          <el-form-item>
            <el-button
              :disabled="formLoading"
              type="success"
              @click="handleAudit(true, approveFormRef)"
            >
              {{ getButtonDisplayName(OperationButtonType.APPROVE) }}
            </el-button>
            <el-button @click="closePopover('approve', approveFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【拒绝】按钮 -->
    <el-popover
      :visible="popOverVisible.reject"
      placement="top-end"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.REJECT)"
    >
      <template #reference>
        <el-button class="mr-20px" plain type="danger" @click="openPopover('reject')">
          <Icon icon="ep:close" />&nbsp; {{ getButtonDisplayName(OperationButtonType.REJECT) }}
        </el-button>
      </template>
      <!-- 审批表单 -->
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="rejectFormRef"
          :model="rejectReasonForm"
          :rules="rejectReasonRule"
          label-width="100px"
        >
          <el-form-item label="审批意见" prop="reason">
            <el-input
              v-model="rejectReasonForm.reason"
              placeholder="请输入审批意见"
              type="textarea"
              :rows="4"
            />
          </el-form-item>
          <el-form-item>
            <el-button
              :disabled="formLoading"
              type="danger"
              @click="handleAudit(false, rejectFormRef)"
            >
              {{ getButtonDisplayName(OperationButtonType.REJECT) }}
            </el-button>
            <el-button @click="closePopover('reject', rejectFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【抄送】按钮 -->
    <el-popover
      :visible="popOverVisible.copy"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.COPY)"
    >
      <template #reference>
        <div @click="openPopover('copy')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="svg-icon:send" />&nbsp;
          {{ getButtonDisplayName(OperationButtonType.COPY) }}
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="copyFormRef"
          :model="copyForm"
          :rules="copyFormRule"
          label-width="100px"
        >
          <el-form-item label="抄送人" prop="copyUserIds">
            <el-select
              v-model="copyForm.copyUserIds"
              clearable
              style="width: 100%"
              multiple
              placeholder="请选择抄送人"
            >
              <el-option
                v-for="item in userOptions"
                :key="item.id"
                :label="item.nickname"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="抄送意见" prop="copyReason">
            <el-input
              v-model="copyForm.copyReason"
              clearable
              placeholder="请输入抄送意见"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handleCopy">
              {{ getButtonDisplayName(OperationButtonType.COPY) }}
            </el-button>
            <el-button @click="closePopover('copy', copyFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【转办】按钮 -->
    <el-popover
      :visible="popOverVisible.transfer"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.TRANSFER)"
    >
      <template #reference>
        <div @click="openPopover('transfer')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="fa:share-square-o" />&nbsp;
          {{ getButtonDisplayName(OperationButtonType.TRANSFER) }}
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="transferFormRef"
          :model="transferForm"
          :rules="transferFormRule"
          label-width="100px"
        >
          <el-form-item label="新审批人" prop="assigneeUserId">
            <el-select v-model="transferForm.assigneeUserId" clearable style="width: 100%">
              <el-option
                v-for="item in userOptions"
                :key="item.id"
                :label="item.nickname"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="审批意见" prop="reason">
            <el-input
              v-model="transferForm.reason"
              clearable
              placeholder="请输入审批意见"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handleTransfer()">
              {{ getButtonDisplayName(OperationButtonType.TRANSFER) }}
            </el-button>
            <el-button @click="closePopover('transfer', transferFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【委派】按钮 -->
    <el-popover
      :visible="popOverVisible.delegate"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.DELEGATE)"
    >
      <template #reference>
        <div @click="openPopover('delegate')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="ep:position" />&nbsp;
          {{ getButtonDisplayName(OperationButtonType.DELEGATE) }}
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="delegateFormRef"
          :model="delegateForm"
          :rules="delegateFormRule"
          label-width="100px"
        >
          <el-form-item label="接收人" prop="delegateUserId">
            <el-select v-model="delegateForm.delegateUserId" clearable style="width: 100%">
              <el-option
                v-for="item in userOptions"
                :key="item.id"
                :label="item.nickname"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="审批意见" prop="reason">
            <el-input
              v-model="delegateForm.reason"
              clearable
              placeholder="请输入审批意见"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handleDelegate()">
              {{ getButtonDisplayName(OperationButtonType.DELEGATE) }}
            </el-button>
            <el-button @click="closePopover('delegate', delegateFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【加签】按钮 当前任务审批人为A，向前加签选了一个C，则需要C先审批，然后再是A审批，向后加签B，A审批完，需要B再审批完，才算完成这个任务节点 -->
    <el-popover
      :visible="popOverVisible.addSign"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.ADD_SIGN)"
    >
      <template #reference>
        <div @click="openPopover('addSign')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="ep:plus" />&nbsp;
          {{ getButtonDisplayName(OperationButtonType.ADD_SIGN) }}
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="addSignFormRef"
          :model="addSignForm"
          :rules="addSignFormRule"
          label-width="100px"
        >
          <el-form-item label="加签处理人" prop="addSignUserIds">
            <el-select v-model="addSignForm.addSignUserIds" multiple clearable style="width: 100%">
              <el-option
                v-for="item in userOptions"
                :key="item.id"
                :label="item.nickname"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="审批意见" prop="reason">
            <el-input
              v-model="addSignForm.reason"
              clearable
              placeholder="请输入审批意见"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handlerAddSign('before')">
              向前{{ getButtonDisplayName(OperationButtonType.ADD_SIGN) }}
            </el-button>
            <el-button :disabled="formLoading" type="primary" @click="handlerAddSign('after')">
              向后{{ getButtonDisplayName(OperationButtonType.ADD_SIGN) }}
            </el-button>
            <el-button @click="closePopover('addSign', addSignFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【减签】按钮 -->
    <el-popover
      :visible="popOverVisible.deleteSign"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask?.children.length > 0"
    >
      <template #reference>
        <div @click="openPopover('deleteSign')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="ep:semi-select" />&nbsp; 减签
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="deleteSignFormRef"
          :model="deleteSignForm"
          :rules="deleteSignFormRule"
          label-width="100px"
        >
          <el-form-item label="减签人员" prop="deleteSignTaskId">
            <el-select v-model="deleteSignForm.deleteSignTaskId" clearable style="width: 100%">
              <el-option
                v-for="item in runningTask.children"
                :key="item.id"
                :label="getDeleteSignUserLabel(item)"
                :value="item.id"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="审批意见" prop="reason">
            <el-input
              v-model="deleteSignForm.reason"
              clearable
              placeholder="请输入审批意见"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handlerDeleteSign()">
              减签
            </el-button>
            <el-button @click="closePopover('deleteSign', deleteSignFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!-- 【退回】按钮 -->
    <el-popover
      :visible="popOverVisible.return"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="runningTask && isHandleTaskStatus() && isShowButton(OperationButtonType.RETURN)"
    >
      <template #reference>
        <div @click="openPopover('return')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="ep:back" />&nbsp;
          {{ getButtonDisplayName(OperationButtonType.RETURN) }}
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="returnFormRef"
          :model="returnForm"
          :rules="returnFormRule"
          label-width="100px"
        >
          <el-form-item label="退回节点" prop="targetTaskDefinitionKey">
            <el-select v-model="returnForm.targetTaskDefinitionKey" clearable style="width: 100%">
              <el-option
                v-for="item in returnList"
                :key="item.taskDefinitionKey"
                :label="item.name"
                :value="item.taskDefinitionKey"
              />
            </el-select>
          </el-form-item>
          <el-form-item label="退回理由" prop="returnReason">
            <el-input
              v-model="returnForm.returnReason"
              clearable
              placeholder="请输入退回理由"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handleReturn()">
              {{ getButtonDisplayName(OperationButtonType.RETURN) }}
            </el-button>
            <el-button @click="closePopover('return', returnFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>

    <!--【取消】按钮 这个对应发起人的取消, 只有发起人可以取消 -->
    <el-popover
      :visible="popOverVisible.cancel"
      placement="top-start"
      :width="420"
      trigger="click"
      v-if="
        userId === processInstance?.startUser?.id && !isEndProcessStatus(processInstance?.status)
      "
    >
      <template #reference>
        <div @click="openPopover('cancel')" class="hover-bg-gray-100 rounded-xl p-6px">
          <Icon :size="14" icon="fa:mail-reply" />&nbsp; 取消
        </div>
      </template>
      <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
        <el-form
          label-position="top"
          class="mb-auto"
          ref="cancelFormRef"
          :model="cancelForm"
          :rules="cancelFormRule"
          label-width="100px"
        >
          <el-form-item label="取消理由" prop="cancelReason">
            <span class="text-#878c93 text-12px">&nbsp; 取消后，该审批流程将自动结束</span>
            <el-input
              v-model="cancelForm.cancelReason"
              clearable
              placeholder="请输入取消理由"
              type="textarea"
              :rows="3"
            />
          </el-form-item>
          <el-form-item>
            <el-button :disabled="formLoading" type="primary" @click="handleCancel()">
              确认
            </el-button>
            <el-button @click="closePopover('cancel', cancelFormRef)"> 取消 </el-button>
          </el-form-item>
        </el-form>
      </div>
    </el-popover>
    <!-- 【再次提交】 按钮-->
    <div
      @click="handleReCreate()"
      class="hover-bg-gray-100 rounded-xl p-6px"
      v-if="
        userId === processInstance?.startUser?.id &&
        isEndProcessStatus(processInstance?.status) &&
        processDefinition?.formType === 10
      "
    >
      <Icon :size="14" icon="ep:refresh" />&nbsp; 再次提交
    </div>
  </div>

  <!-- 签名弹窗 -->
  <SignDialog ref="signRef" @success="handleSignFinish" />
</template>
<script lang="ts" setup>
import { useUserStoreWithOut } from '@/store/modules/user'
import { setConfAndFields2 } from '@/utils/formCreate'
import * as TaskApi from '@/api/bpm/task'
import * as ProcessInstanceApi from '@/api/bpm/processInstance'
import * as UserApi from '@/api/system/user'
import {
  NodeType,
  OPERATION_BUTTON_NAME,
  OperationButtonType,
  CandidateStrategy
} from '@/components/SimpleProcessDesignerV2/src/consts'
import { BpmModelFormType, BpmProcessInstanceStatus } from '@/utils/constants'
import type { FormInstance, FormRules } from 'element-plus'
import SignDialog from './SignDialog.vue'
import ProcessInstanceTimeline from '../detail/ProcessInstanceTimeline.vue'
import { isEmpty } from '@/utils/is'

defineOptions({ name: 'ProcessInstanceBtnContainer' })

const router = useRouter() // 路由
const message = useMessage() // 消息弹窗

const userId = useUserStoreWithOut().getUser.id // 当前登录的编号
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调

const props = defineProps<{
  processInstance: any // 流程实例信息
  processDefinition: any // 流程定义信息
  userOptions: UserApi.UserVO[]
  normalForm: any // 流程表单 formCreate
  normalFormApi: any // 流程表单 formCreate Api
  writableFields: string[] // 流程表单可以编辑的字段
}>()

const formLoading = ref(false) // 表单加载中
const popOverVisible = ref({
  approve: false,
  reject: false,
  transfer: false,
  delegate: false,
  addSign: false,
  return: false,
  copy: false,
  cancel: false,
  deleteSign: false
}) // 气泡卡是否展示
const returnList = ref([] as any) // 退回节点

// ========== 审批信息 ==========
const runningTask = ref<any>() // 运行中的任务
const approveForm = ref<any>({}) // 审批通过时，额外的补充信息
const approveFormFApi = ref<any>({}) // approveForms 的 fAPi
const nodeTypeName = ref('审批') // 节点类型名称

// 审批通过意见表单
const reasonRequire = ref()
const approveFormRef = ref<FormInstance>()
const signRef = ref()
const approveSignFormRef = ref()
const nextAssigneesActivityNode = ref<ProcessInstanceApi.ApprovalNodeInfo[]>([]) // 下一个审批节点信息
const nextAssigneesTimelineRef = ref() // 下一个节点审批人时间线组件的引用
const approveReasonForm = reactive({
  reason: '',
  signPicUrl: '',
  nextAssignees: {}
})
const approveReasonRule = computed(() => {
  return {
    reason: [
      { required: reasonRequire.value, message: nodeTypeName + '意见不能为空', trigger: 'blur' }
    ],
    signPicUrl: [{ required: true, message: '签名不能为空', trigger: 'change' }],
    nextAssignees: [{ required: true, message: '审批人不能为空', trigger: 'blur' }]
  }
})

// 拒绝表单
const rejectFormRef = ref<FormInstance>()
const rejectReasonForm = reactive({
  reason: ''
})
const rejectReasonRule = computed(() => {
  return {
    reason: [{ required: reasonRequire.value, message: '审批意见不能为空', trigger: 'blur' }]
  }
})

// 抄送表单
const copyFormRef = ref<FormInstance>()
const copyForm = reactive({
  copyUserIds: [],
  copyReason: ''
})
const copyFormRule = reactive<FormRules<typeof copyForm>>({
  copyUserIds: [{ required: true, message: '抄送人不能为空', trigger: 'change' }]
})

// 转办表单
const transferFormRef = ref<FormInstance>()
const transferForm = reactive({
  assigneeUserId: undefined,
  reason: ''
})
const transferFormRule = reactive<FormRules<typeof transferForm>>({
  assigneeUserId: [{ required: true, message: '新审批人不能为空', trigger: 'change' }],
  reason: [{ required: true, message: '审批意见不能为空', trigger: 'blur' }]
})

// 委派表单
const delegateFormRef = ref<FormInstance>()
const delegateForm = reactive({
  delegateUserId: undefined,
  reason: ''
})
const delegateFormRule = reactive<FormRules<typeof delegateForm>>({
  delegateUserId: [{ required: true, message: '接收人不能为空', trigger: 'change' }],
  reason: [{ required: true, message: '审批意见不能为空', trigger: 'blur' }]
})

// 加签表单
const addSignFormRef = ref<FormInstance>()
const addSignForm = reactive({
  addSignUserIds: undefined,
  reason: ''
})
const addSignFormRule = reactive<FormRules<typeof addSignForm>>({
  addSignUserIds: [{ required: true, message: '加签处理人不能为空', trigger: 'change' }],
  reason: [{ required: true, message: '审批意见不能为空', trigger: 'blur' }]
})

// 减签表单
const deleteSignFormRef = ref<FormInstance>()
const deleteSignForm = reactive({
  deleteSignTaskId: undefined,
  reason: ''
})
const deleteSignFormRule = reactive<FormRules<typeof deleteSignForm>>({
  deleteSignTaskId: [{ required: true, message: '减签人员不能为空', trigger: 'change' }],
  reason: [{ required: true, message: '审批意见不能为空', trigger: 'blur' }]
})

// 退回表单
const returnFormRef = ref<FormInstance>()
const returnForm = reactive({
  targetTaskDefinitionKey: undefined,
  returnReason: ''
})
const returnFormRule = reactive<FormRules<typeof returnForm>>({
  targetTaskDefinitionKey: [{ required: true, message: '退回节点不能为空', trigger: 'change' }],
  returnReason: [{ required: true, message: '退回理由不能为空', trigger: 'blur' }]
})

// 取消表单
const cancelFormRef = ref<FormInstance>()
const cancelForm = reactive({
  cancelReason: ''
})
const cancelFormRule = reactive<FormRules<typeof cancelForm>>({
  cancelReason: [{ required: true, message: '取消理由不能为空', trigger: 'blur' }]
})

/** 监听 approveFormFApis，实现它对应的 form-create 初始化后，隐藏掉对应的表单提交按钮 */
watch(
  () => approveFormFApi.value,
  (val) => {
    val?.btn?.show(false)
    val?.resetBtn?.show(false)
  },
  {
    deep: true
  }
)

/** 弹出气泡卡 */
const openPopover = async (type: string) => {
  if (popOverVisible.value[type] === true) return
  if (type === 'approve') {
    // 校验流程表单
    const valid = await validateNormalForm()
    if (!valid) {
      message.warning('表单校验不通过，请先完善表单!!')
      return
    }
    initNextAssigneesFormField()
  }
  if (type === 'return') {
    // 获取退回节点
    returnList.value = await TaskApi.getTaskListByReturn(runningTask.value.id)
    if (returnList.value.length === 0) {
      message.warning('当前没有可退回的节点')
      return
    }
  }
  Object.keys(popOverVisible.value).forEach((item) => {
    popOverVisible.value[item] = item === type
  })
  // await nextTick()
  // formRef.value.resetFields()
}

/** 关闭气泡卡 */
const closePopover = (type: string, formRef: FormInstance | undefined) => {
  if (formRef) {
    formRef.resetFields()
  }
  popOverVisible.value[type] = false
  nextAssigneesActivityNode.value = []
  // 清理 Timeline 组件中的自定义审批人数据
  if (nextAssigneesTimelineRef.value) {
    nextAssigneesTimelineRef.value.batchSetCustomApproveUsers({})
  }
}

/** 流程通过时，根据表单变量查询新的流程节点，判断下一个节点类型是否为自选审批人 */
const initNextAssigneesFormField = async () => {
  // 获取修改的流程变量, 暂时只支持流程表单
  const variables = getUpdatedProcessInstanceVariables()
  const data = await ProcessInstanceApi.getNextApprovalNodes({
    processInstanceId: props.processInstance.id,
    taskId: runningTask.value.id,
    processVariablesStr: JSON.stringify(variables)
  })
  if (data && data.length > 0) {
    const customApproveUsersData: Record<string, any[]> = {} // 用于收集需要设置到 Timeline 组件的自定义审批人数据
    data.forEach((node: any) => {
      if (
        // 情况一：当前节点没有审批人，并且是发起人自选
        (isEmpty(node.tasks) &&
          isEmpty(node.candidateUsers) &&
          CandidateStrategy.START_USER_SELECT === node.candidateStrategy) ||
        // 情况二：当前节点是审批人自选
        CandidateStrategy.APPROVE_USER_SELECT === node.candidateStrategy
      ) {
        nextAssigneesActivityNode.value.push(node)
      }

      // 如果节点有 candidateUsers，设置到 customApproveUsers 中
      if (node.candidateUsers && node.candidateUsers.length > 0) {
        customApproveUsersData[node.id] = node.candidateUsers
      }
    })

    // 将 candidateUsers 设置到 Timeline 组件中
    await nextTick() // 等待下一个 tick，确保 Timeline 组件已经渲染
    if (nextAssigneesTimelineRef.value && Object.keys(customApproveUsersData).length > 0) {
      nextAssigneesTimelineRef.value.batchSetCustomApproveUsers(customApproveUsersData)
    }
  }
}

/** 选择下一个节点的审批人 */
const selectNextAssigneesConfirm = (id: string, userList: any[]) => {
  approveReasonForm.nextAssignees[id] = userList?.map((item: any) => item.id)
}
/** 审批通过时，校验每个自选审批人的节点是否都已配置了审批人 */
const validateNextAssignees = () => {
  if (Object.keys(nextAssigneesActivityNode.value).length === 0) {
    return true
  }
  // 如果需要自选审批人，则校验每个节点是否都已配置审批人
  for (const item of nextAssigneesActivityNode.value) {
    if (isEmpty(approveReasonForm.nextAssignees[item.id])) {
      message.warning('下一个节点的审批人不能为空!')
      return false
    }
  }
  return true
}

/** 处理审批通过和不通过的操作 */
const handleAudit = async (pass: boolean, formRef: FormInstance | undefined) => {
  formLoading.value = true
  try {
    // 校验表单
    if (!formRef) return
    await formRef.validate()
    // 校验流程表单必填字段
    const valid = await validateNormalForm()
    if (!valid) {
      message.warning('表单校验不通过，请先完善表单!!')
      return
    }

    if (pass) {
      const nextAssigneesValid = validateNextAssignees()
      if (!nextAssigneesValid) return
      const variables = getUpdatedProcessInstanceVariables()
      // 审批通过数据
      const data = {
        id: runningTask.value.id,
        reason: approveReasonForm.reason,
        variables, // 审批通过, 把修改的字段值赋于流程实例变量
        nextAssignees: approveReasonForm.nextAssignees // 下个自选节点选择的审批人信息
      } as any
      // 签名
      if (runningTask.value.signEnable) {
        data.signPicUrl = approveReasonForm.signPicUrl
      }
      // 多表单处理，并且有额外的 approveForm 表单，需要校验 + 拼接到 data 表单里提交
      // TODO 芋艿 任务有多表单这里要如何处理，会和可编辑的字段冲突
      const formCreateApi = approveFormFApi.value
      if (Object.keys(formCreateApi)?.length > 0) {
        await formCreateApi.validate()
        // @ts-ignore
        data.variables = approveForm.value.value
      }
      await TaskApi.approveTask(data)
      popOverVisible.value.approve = false
      nextAssigneesActivityNode.value = []
      // 清理 Timeline 组件中的自定义审批人数据
      if (nextAssigneesTimelineRef.value) {
        nextAssigneesTimelineRef.value.batchSetCustomApproveUsers({})
      }
      message.success('审批通过成功')
    } else {
      // 审批不通过数据
      const data = {
        id: runningTask.value.id,
        reason: rejectReasonForm.reason
      }
      await TaskApi.rejectTask(data)
      popOverVisible.value.reject = false
      message.success('审批不通过成功')
    }
    // 重置表单
    formRef.resetFields()
    // 加载最新数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理抄送 */
const handleCopy = async () => {
  formLoading.value = true
  try {
    // 1. 校验表单
    if (!copyFormRef.value) return
    await copyFormRef.value.validate()
    // 2. 提交抄送
    const data = {
      id: runningTask.value.id,
      reason: copyForm.copyReason,
      copyUserIds: copyForm.copyUserIds
    }
    await TaskApi.copyTask(data)
    copyFormRef.value.resetFields()
    popOverVisible.value.copy = false
    message.success('操作成功')
  } finally {
    formLoading.value = false
  }
}

/** 处理转交 */
const handleTransfer = async () => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!transferFormRef.value) return
    await transferFormRef.value.validate()
    // 1.2 提交转交
    const data = {
      id: runningTask.value.id,
      reason: transferForm.reason,
      assigneeUserId: transferForm.assigneeUserId
    }
    await TaskApi.transferTask(data)
    transferFormRef.value.resetFields()
    popOverVisible.value.transfer = false
    message.success('操作成功')
    // 2. 加载最新数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理委派 */
const handleDelegate = async () => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!delegateFormRef.value) return
    await delegateFormRef.value.validate()
    // 1.2 处理委派
    const data = {
      id: runningTask.value.id,
      reason: delegateForm.reason,
      delegateUserId: delegateForm.delegateUserId
    }

    await TaskApi.delegateTask(data)
    popOverVisible.value.delegate = false
    delegateFormRef.value.resetFields()
    message.success('操作成功')
    // 2. 加载最新数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理加签 */
const handlerAddSign = async (type: string) => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!addSignFormRef.value) return
    await addSignFormRef.value.validate()
    // 1.2 提交加签
    const data = {
      id: runningTask.value.id,
      type,
      reason: addSignForm.reason,
      userIds: addSignForm.addSignUserIds
    }
    await TaskApi.signCreateTask(data)
    message.success('操作成功')
    addSignFormRef.value.resetFields()
    popOverVisible.value.addSign = false
    // 2 加载最新数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理退回 */
const handleReturn = async () => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!returnFormRef.value) return
    await returnFormRef.value.validate()
    // 1.2 提交退回
    const data = {
      id: runningTask.value.id,
      reason: returnForm.returnReason,
      targetTaskDefinitionKey: returnForm.targetTaskDefinitionKey
    }

    await TaskApi.returnTask(data)
    popOverVisible.value.return = false
    returnFormRef.value.resetFields()
    message.success('操作成功')
    // 2 重新加载数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理取消 */
const handleCancel = async () => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!cancelFormRef.value) return
    await cancelFormRef.value.validate()
    // 1.2 提交取消
    await ProcessInstanceApi.cancelProcessInstanceByStartUser(
      props.processInstance.id,
      cancelForm.cancelReason
    )
    popOverVisible.value.return = false
    message.success('操作成功')
    cancelFormRef.value.resetFields()
    // 2 重新加载数据
    reload()
  } finally {
    formLoading.value = false
  }
}

/** 处理再次提交 */
const handleReCreate = async () => {
  // 跳转发起流程界面
  await router.push({
    name: 'BpmProcessInstanceCreate',
    query: { processInstanceId: props.processInstance?.id }
  })
}

/** 获取减签人员标签 */
const getDeleteSignUserLabel = (task: any): string => {
  const deptName = task?.assigneeUser?.deptName || task?.ownerUser?.deptName
  const nickname = task?.assigneeUser?.nickname || task?.ownerUser?.nickname
  return `${nickname} ( 所属部门：${deptName} )`
}
/** 处理减签 */
const handlerDeleteSign = async () => {
  formLoading.value = true
  try {
    // 1.1 校验表单
    if (!deleteSignFormRef.value) return
    await deleteSignFormRef.value.validate()
    // 1.2 提交减签
    const data = {
      id: deleteSignForm.deleteSignTaskId,
      reason: deleteSignForm.reason
    }
    await TaskApi.signDeleteTask(data)
    message.success('减签成功')
    deleteSignFormRef.value.resetFields()
    popOverVisible.value.deleteSign = false
    // 2 加载最新数据
    reload()
  } finally {
    formLoading.value = false
  }
}
/** 重新加载数据 */
const reload = () => {
  emit('success')
}

/** 任务是否为处理中状态 */
const isHandleTaskStatus = () => {
  let canHandle = false
  if (TaskApi.TaskStatusEnum.RUNNING === runningTask.value?.status) {
    canHandle = true
  }
  return canHandle
}

/** 流程状态是否为结束状态 */
const isEndProcessStatus = (status: number) => {
  let isEndStatus = false
  if (
    BpmProcessInstanceStatus.APPROVE === status ||
    BpmProcessInstanceStatus.REJECT === status ||
    BpmProcessInstanceStatus.CANCEL === status
  ) {
    isEndStatus = true
  }
  return isEndStatus
}

/** 是否显示按钮 */
const isShowButton = (btnType: OperationButtonType): boolean => {
  let isShow = true
  if (runningTask.value?.buttonsSetting && runningTask.value?.buttonsSetting[btnType]) {
    isShow = runningTask.value.buttonsSetting[btnType].enable
  }
  return isShow
}

/** 获取按钮的显示名称 */
const getButtonDisplayName = (btnType: OperationButtonType) => {
  let displayName = OPERATION_BUTTON_NAME.get(btnType)
  if (runningTask.value?.buttonsSetting && runningTask.value?.buttonsSetting[btnType]) {
    displayName = runningTask.value.buttonsSetting[btnType].displayName
  }
  return displayName
}

const loadTodoTask = (task: any) => {
  approveForm.value = {}
  runningTask.value = task
  approveFormFApi.value = {}
  reasonRequire.value = task?.reasonRequire ?? false
  nodeTypeName.value = task?.nodeType === NodeType.TRANSACTOR_NODE ? '办理' : '审批'
  // 处理 approve 表单.
  if (task && task.formId && task.formConf) {
    const tempApproveForm = {}
    setConfAndFields2(tempApproveForm, task.formConf, task.formFields, task.formVariables)
    approveForm.value = tempApproveForm
  } else {
    approveForm.value = {} // 占位，避免为空
  }
}

/** 校验流程表单 */
const validateNormalForm = async () => {
  if (props.processDefinition?.formType === BpmModelFormType.NORMAL) {
    let valid = true
    try {
      await props.normalFormApi?.validate()
    } catch {
      valid = false
    }
    return valid
  } else {
    return true
  }
}

/** 从可以编辑的流程表单字段，获取需要修改的流程实例的变量 */
const getUpdatedProcessInstanceVariables = () => {
  const variables = {}
  props.writableFields.forEach((field) => {
    variables[field] = props.normalFormApi.getValue(field)
  })
  return variables
}

/** 处理签名完成 */
const handleSignFinish = (url: string) => {
  approveReasonForm.signPicUrl = url
  approveSignFormRef.value.validate('change')
}

defineExpose({ loadTodoTask })
</script>

<style lang="scss" scoped>
:deep(.el-affix--fixed) {
  background-color: var(--el-bg-color);
}

.btn-container {
  > div {
    display: flex;
    margin: 0 8px;
    cursor: pointer;
    align-items: center;

    &:hover {
      color: #6db5ff;
    }
  }
}
</style>