<template>
  <ContentWrap :bodyStyle="{ padding: '10px 20px 0' }" class="position-relative">
    <div class="processInstance-wrap-main">
      <el-scrollbar>
        <img
          class="position-absolute right-20px"
          width="150"
          :src="auditIcons[processInstance.status]"
          alt=""
        />
        <div class="text-#878c93 h-15px">编号：{{ id }}</div>
        <el-divider class="!my-8px" />
        <div class="flex items-center gap-5 mb-10px h-40px">
          <div class="text-26px font-bold mb-5px">{{ processInstance.name }}</div>
          <dict-tag
            v-if="processInstance.status"
            :type="DICT_TYPE.BPM_PROCESS_INSTANCE_STATUS"
            :value="processInstance.status"
          />
        </div>

        <div class="flex items-center gap-5 mb-10px text-13px h-35px">
          <div class="bg-gray-100 h-35px rounded-3xl flex items-center p-8px gap-2 dark:color-gray-600">
            <el-avatar
              :size="28"
              v-if="processInstance?.startUser?.avatar"
              :src="processInstance?.startUser?.avatar"
            />
            <el-avatar :size="28" v-else-if="processInstance?.startUser?.nickname">
              {{ processInstance?.startUser?.nickname.substring(0, 1) }}
            </el-avatar>
            {{ processInstance?.startUser?.nickname }}
          </div>
          <div class="text-#878c93"> {{ formatDate(processInstance.startTime) }} 提交 </div>
        </div>

        <el-tabs v-model="activeTab">
          <!-- 表单信息 -->
          <el-tab-pane label="审批详情" name="form">
            <div class="form-scroll-area">
              <el-scrollbar>
                <el-row>
                  <el-col :span="18" class="!flex !flex-col formCol">
                    <!-- 表单信息 -->
                    <div
                      v-loading="processInstanceLoading"
                      class="form-box flex flex-col mb-30px flex-1"
                    >
                      <!-- 情况一：流程表单 -->
                      <el-col v-if="processDefinition?.formType === 10">
                        <form-create
                          v-model="detailForm.value"
                          v-model:api="fApi"
                          :option="detailForm.option"
                          :rule="detailForm.rule"
                        />
                      </el-col>
                      <!-- 情况二：业务表单 -->
                      <div v-if="processDefinition?.formType === 20">
                        <BusinessFormComponent :id="processInstance.businessKey" />
                      </div>
                    </div>
                  </el-col>
                  <el-col :span="6">
                    <!-- 审批记录时间线 -->
                    <ProcessInstanceTimeline ref="timelineRef" :approve-nodes="approveNodes" />
                  </el-col>
                </el-row>
              </el-scrollbar>
            </div>
          </el-tab-pane>

          <!-- 流程图 -->
          <el-tab-pane label="流程图" name="diagram">
            <div class="form-scroll-area">
              <ProcessInstanceBpmnViewer :id="`${id}`" :loading="processInstanceLoading" :show-header="false"/>
            </div>
          </el-tab-pane>

          <!-- 流转记录 -->
          <el-tab-pane label="流转记录" name="record">
            <div class="form-scroll-area">
              <el-scrollbar>
                <ProcessInstanceTaskList
                  :loading="tasksLoad"
                  :process-instance="processInstance"
                  :tasks="tasks"
                  :show-header="false"
                />
              </el-scrollbar>
            </div>
          </el-tab-pane>

          <!-- 流转评论 TODO 待开发 -->
          <el-tab-pane label="流转评论" name="comment">
            <div class="form-scroll-area">
              <el-scrollbar> 流转评论 </el-scrollbar>
            </div>
          </el-tab-pane>
        </el-tabs>

        <div class="b-t-solid border-t-1px border-[var(--el-border-color)]">
          <!-- 操作栏按钮 -->
          <ProcessInstanceOperationButton
            ref="operationButtonRef"
            :process-instance="processInstance"
            :process-definition="processDefinition"
            :userOptions="userOptions"
            @success="refresh"
          />
        </div>
      </el-scrollbar>
    </div>
  </ContentWrap>
</template>
<script lang="ts" setup>
import { formatDate } from '@/utils/formatTime'
import { DICT_TYPE } from '@/utils/dict'
import { setConfAndFields2 } from '@/utils/formCreate'
import type { ApiAttrs } from '@form-create/element-ui/types/config'
import * as ProcessInstanceApi from '@/api/bpm/processInstance'
import * as TaskApi from '@/api/bpm/task'
import ProcessInstanceBpmnViewer from './ProcessInstanceBpmnViewer.vue'
import ProcessInstanceTaskList from './ProcessInstanceTaskList.vue'
import ProcessInstanceOperationButton from './ProcessInstanceOperationButton.vue'
import ProcessInstanceTimeline from './ProcessInstanceTimeline.vue'
import * as UserApi from '@/api/system/user'
import { FieldPermissionType } from '@/components/SimpleProcessDesignerV2/src/consts'
import audit1 from '@/assets/svgs/bpm/audit1.svg'
import audit2 from '@/assets/svgs/bpm/audit2.svg'
import audit3 from '@/assets/svgs/bpm/audit3.svg'
import audit4 from '@/assets/svgs/bpm/audit4.svg'

defineOptions({ name: 'BpmProcessInstanceDetail' })
const props = defineProps<{
  id: string // 流程实例的编号
  taskId?: string // 任务编号
  activityId?: string //流程活动编号，用于抄送查看
}>()
const message = useMessage() // 消息弹窗
const processInstanceLoading = ref(false) // 流程实例的加载中
const processInstance = ref<any>({}) // 流程实例
const processDefinition = ref<any>({}) // 流程定义
const timelineRef = ref()
// 操作按钮组件 ref
const operationButtonRef = ref()
const tasksLoad = ref(true) // 任务的加载中
const tasks = ref<any[]>([]) // 任务列表
const auditIcons = {
  1: audit1,
  2: audit2,
  3: audit3,
  4: audit4
}

// ========== 申请信息 ==========
const fApi = ref<ApiAttrs>() //
const detailForm = ref({
  rule: [],
  option: {},
  value: {}
}) // 流程实例的表单详情

/** 获得详情 */
const getDetail = async () => {
  // 1. 获取审批详情
  getApprovalDetail()
  // 2. 获得流程任务列表
  getTaskList()
}

/** 加载流程实例 */
const BusinessFormComponent = ref<any>(null) // 异步组件
/** 获取审批详情 */
const getApprovalDetail = async () => {
  processInstanceLoading.value = true
  try {
    const param = {
      processInstanceId: props.id,
      activityId: props.activityId,
      taskId: props.taskId
    }
    const data = await ProcessInstanceApi.getApprovalDetail(param);
    if (!data) {
      message.error('查询不到审批详情信息！')
      return
    }
    if(!data.processDefinition || !data.processInstance) {
      message.error('查询不到流程信息！')
      return
    }
    processInstance.value = data.processInstance
    processDefinition.value = data.processDefinition

    // 设置表单信息
    if (processDefinition.value.formType === 10) {
      // 获取表单字段权限
      const formFieldsPermission = data.formFieldsPermission
     
      if (detailForm.value.rule.length > 0) {  // 避免刷新 form-create 显示不了，
        detailForm.value.value = processInstance.value.formVariables
      } else {
        setConfAndFields2(
          detailForm,
          processDefinition.value.formConf,
          processDefinition.value.formFields,
          processInstance.value.formVariables
        )
      }
      nextTick().then(() => {
        fApi.value?.btn.show(false)
        fApi.value?.resetBtn.show(false)
        //@ts-ignore
        fApi.value?.disabled(true)
        // 设置表单字段权限
        if (formFieldsPermission) {
          Object.keys(data.formFieldsPermission).forEach((item) => {
            setFieldPermission(item, formFieldsPermission[item])
          })
        }
      })
    }

    // 获取审批节点，显示 Timeline 的数据
    approveNodes.value = data.approveNodes

    // 获取待办任务显示操作按钮
    operationButtonRef.value?.loadTodoTask(data.todoTask)

  } finally {
    processInstanceLoading.value = false
  }
  
}

// 审批节点信息
const approveNodes = ref<ProcessInstanceApi.ApprovalNodeInfo[]>([])
/**
 * 设置表单权限
 */
const setFieldPermission = (field: string, permission: string) => {
  if (permission === FieldPermissionType.READ) {
    //@ts-ignore
    fApi.value?.disabled(true, field)
  }
  if (permission === FieldPermissionType.WRITE) {
    //@ts-ignore
    fApi.value?.disabled(false, field)
  }
  if (permission === FieldPermissionType.NONE) {
    //@ts-ignore
    fApi.value?.hidden(true, field)
  }
}

/** 加载任务列表 */
const getTaskList = async () => {
  try {
    // 获得未取消的任务
    tasksLoad.value = true
    const data = await TaskApi.getTaskListByProcessInstanceId(props.id)
    tasks.value = []
    // 1.1 移除已取消的审批
    data.forEach((task: any) => {
      if (task.status !== 4) {
        tasks.value.push(task)
      }
    })
    // 1.2 排序，将未完成的排在前面，已完成的排在后面；
    tasks.value.sort((a, b) => {
      // 有已完成的情况，按照完成时间倒序
      if (a.endTime && b.endTime) {
        return b.endTime - a.endTime
      } else if (a.endTime) {
        return 1
      } else if (b.endTime) {
        return -1
        // 都是未完成，按照创建时间倒序
      } else {
        return b.createTime - a.createTime
      }
    })
  } finally {
    tasksLoad.value = false
  }
}

/**
 * 操作成功后刷新
 */
const refresh = () => {
  // 重新获取详情
  getDetail()
}

/** 当前的Tab */
const activeTab = ref('form')

/** 初始化 */
const userOptions = ref<UserApi.UserVO[]>([]) // 用户列表
onMounted(async () => {
  getDetail()
  // 获得用户列表
  userOptions.value = await UserApi.getSimpleUserList()
})
</script>

<style lang="scss" scoped>
$wrap-padding-height: 20px;
$wrap-margin-height: 15px;
$button-height: 51px;
$process-header-height: 194px;

.processInstance-wrap-main {
  height: calc(
    100vh - var(--top-tool-height) - var(--tags-view-height) - var(--app-footer-height) - 35px
  );
  max-height: calc(
    100vh - var(--top-tool-height) - var(--tags-view-height) - var(--app-footer-height) - 35px
  );
  overflow: auto;

  .form-scroll-area {
    height: calc(
      100vh - var(--top-tool-height) - var(--tags-view-height) - var(--app-footer-height) - 35px -
        $process-header-height - 40px
    );
    max-height: calc(
      100vh - var(--top-tool-height) - var(--tags-view-height) - var(--app-footer-height) - 35px -
        $process-header-height - 40px
    );
    overflow: auto;
  }
}

.form-box {
  :deep(.el-card) {
    border: none;
  }
}
</style>
