<template>
  <el-affix target=".formCol" position="bottom" class="h-50px" v-if="runningTask?.id">
    <el-divider class="!mb-8px !mt-0" />
    <div
      class="pl-50px text-14px flex items-center color-#32373c dark:color-#fff font-bold btn-container"
    >
      <el-popover :visible="passVisible" placement="top-end" :width="500" trigger="click">
        <template #reference>
          <el-button plain type="success" @click="openPopover('1')">
            <Icon icon="ep:select" />&nbsp; 通过
          </el-button>
        </template>
        <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
          <el-form
            label-position="top"
            class="mb-auto"
            ref="formRef"
            :model="auditForm"
            :rules="auditRule"
            label-width="100px"
          >
            <el-form-item v-if="processInstance && processInstance.startUser" label="流程发起人">
              {{ processInstance?.startUser.nickname }}
              <el-tag size="small" type="info" class="ml-8px">
                {{ processInstance?.startUser.deptName }}
              </el-tag>
            </el-form-item>
            <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="审批建议" prop="reason">
              <el-input v-model="auditForm.reason" placeholder="请输入审批建议" type="textarea" />
            </el-form-item>
            <el-form-item label="抄送人" prop="copyUserIds">
              <el-select v-model="auditForm.copyUserIds" multiple placeholder="请选择抄送人">
                <el-option
                  v-for="itemx in userOptions"
                  :key="itemx.id"
                  :label="itemx.nickname"
                  :value="itemx.id"
                />
              </el-select>
            </el-form-item>

            <el-form-item>
              <el-button :disabled="formLoading" type="success" @click="handleAudit(true)">
                通过
              </el-button>
              <el-button @click="passVisible = false"> 取消 </el-button>
            </el-form-item>
          </el-form>
        </div>
      </el-popover>
      <el-popover :visible="rejectVisible" placement="top-end" :width="500" trigger="click">
        <template #reference>
          <el-button class="mr-20px" plain type="danger" @click="openPopover('2')">
            <Icon icon="ep:close" />&nbsp; 拒绝
          </el-button>
        </template>
        <div class="flex flex-col flex-1 pt-20px px-20px" v-loading="formLoading">
          <el-form
            label-position="top"
            class="mb-auto"
            ref="formRef"
            :model="auditForm"
            :rules="auditRule"
            label-width="100px"
          >
            <el-form-item v-if="processInstance && processInstance.startUser" label="流程发起人">
              {{ processInstance?.startUser.nickname }}
              <el-tag size="small" type="info" class="ml-8px">
                {{ processInstance?.startUser.deptName }}
              </el-tag>
            </el-form-item>
            <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="审批建议" prop="reason">
              <el-input v-model="auditForm.reason" placeholder="请输入审批建议" type="textarea" />
            </el-form-item>
            <el-form-item label="抄送人" prop="copyUserIds">
              <el-select v-model="auditForm.copyUserIds" multiple placeholder="请选择抄送人">
                <el-option
                  v-for="itemx in userOptions"
                  :key="itemx.id"
                  :label="itemx.nickname"
                  :value="itemx.id"
                />
              </el-select>
            </el-form-item>

            <el-form-item>
              <el-button :disabled="formLoading" type="danger" @click="handleAudit(false)">
                拒绝
              </el-button>
              <el-button @click="rejectVisible = false"> 取消 </el-button>
            </el-form-item>
          </el-form>
        </div>
      </el-popover>
      <div @click="handleSend"> <Icon :size="14" icon="svg-icon:send" />&nbsp;抄送 </div>
      <div @click="openTaskUpdateAssigneeForm">
        <Icon :size="14" icon="fa:share-square-o" />&nbsp;转交
      </div>
      <div @click="handleDelegate"> <Icon :size="14" icon="ep:position" />&nbsp;委派 </div>
      <div @click="handleSign"> <Icon :size="14" icon="ep:plus" />&nbsp;加签 </div>
      <div @click="handleBack"> <Icon :size="14" icon="fa:mail-reply" />&nbsp;退回 </div>
    </div>
  </el-affix>
  <!-- 弹窗：转派审批人 -->
  <TaskTransferForm ref="taskTransferFormRef" @success="getDetail" />
  <!-- 弹窗：回退节点 -->
  <TaskReturnForm ref="taskReturnFormRef" @success="getDetail" />
  <!-- 弹窗：委派，将任务委派给别人处理，处理完成后，会重新回到原审批人手中-->
  <TaskDelegateForm ref="taskDelegateForm" @success="getDetail" />
  <!-- 弹窗：加签，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 -->
  <TaskSignCreateForm ref="taskSignCreateFormRef" @success="getDetail" />
</template>

<script lang="ts" setup>
import { setConfAndFields2 } from '@/utils/formCreate'
import { useUserStore } from '@/store/modules/user'
import * as TaskApi from '@/api/bpm/task'
import { propTypes } from '@/utils/propTypes'
import TaskReturnForm from './dialog/TaskReturnForm.vue'
import TaskDelegateForm from './dialog/TaskDelegateForm.vue'
import TaskTransferForm from './dialog/TaskTransferForm.vue'
import TaskSignCreateForm from './dialog/TaskSignCreateForm.vue'
import { isEmpty } from '@/utils/is'

defineOptions({ name: 'ProcessInstanceBtnConatiner' })

const userId = useUserStore().getUser.id // 当前登录的编号
const message = useMessage() // 消息弹窗
const { proxy } = getCurrentInstance() as any
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
defineProps({
  processInstance: propTypes.any, // 流程实例信息
  userOptions: propTypes.any
})
const formLoading = ref(false) // 表单加载中
const passVisible = ref(false) // 是否显示
const rejectVisible = ref(false) // 是否显示
// ========== 审批信息 ==========
const runningTask = ref<any>({}) // 运行中的任务
const auditForm = ref<any>({}) // 审批任务的表单
const approveForm = ref<any>({}) // 审批通过时，额外的补充信息
const approveFormFApi = ref<any>({}) // approveForms 的 fAPi
const formRef = ref()
const auditRule = reactive({
  reason: [{ required: true, message: '审批建议不能为空', 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
  }
)
/**
 * 设置 runningTasks 中的任务
 */
const loadRunningTask = (tasks) => {
  runningTask.value = {}
  auditForm.value = {}
  approveForm.value = {}
  approveFormFApi.value = {}
  tasks.forEach((task) => {
    if (!isEmpty(task.children)) {
      loadRunningTask(task.children)
    }
    // 2.1 只有待处理才需要
    if (task.status !== 1 && task.status !== 6) {
      return
    }
    // 2.2 自己不是处理人
    if (!task.assigneeUser || task.assigneeUser.id !== userId) {
      return
    }
    // 2.3 添加到处理任务
    runningTask.value = { ...task }
    auditForm.value = {
      reason: '',
      copyUserIds: []
    }

    // 2.4 处理 approve 表单
    if (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
    }
  })
}

/** 处理审批通过和不通过的操作 */
const handleAudit = async (pass) => {
  formLoading.value = true
  try {
    const auditFormRef = proxy.$refs['formRef']
    // 1.2 校验表单
    const elForm = unref(auditFormRef)
    if (!elForm) return
    const valid = await elForm.validate()
    if (!valid) return

    // 2.1 提交审批
    const data = {
      id: runningTask.value.id,
      reason: auditForm.value.reason,
      copyUserIds: auditForm.value.copyUserIds
    }
    if (pass) {
      // 审批通过，并且有额外的 approveForm 表单，需要校验 + 拼接到 data 表单里提交
      const formCreateApi = approveFormFApi.value
      if (Object.keys(formCreateApi)?.length > 0) {
        await formCreateApi.validate()
        // @ts-ignore
        data.variables = approveForm.value.value
      }
      await TaskApi.approveTask(data)
      message.success('审批通过成功')
    } else {
      await TaskApi.rejectTask(data)
      message.success('审批不通过成功')
    }
    // 2.2 加载最新数据
    getDetail()
  } finally {
    formLoading.value = false
  }
}

/* 抄送 TODO */
const handleSend = () => {}

const openPopover = (flag) => {
  passVisible.value = false
  rejectVisible.value = false
  formRef.value.resetFields()
  flag === '1' ? (passVisible.value = true) : (rejectVisible.value = true)
}

/** 转派审批人 */
const taskTransferFormRef = ref()
const openTaskUpdateAssigneeForm = () => {
  taskTransferFormRef.value.open(runningTask.value.id)
}

/** 处理审批退回的操作 */
const taskDelegateForm = ref()
const handleDelegate = async () => {
  taskDelegateForm.value.open(runningTask.value.id)
}

/** 处理审批退回的操作 */
const taskReturnFormRef = ref()
const handleBack = async () => {
  taskReturnFormRef.value.open(runningTask.value.id)
}

/** 处理审批加签的操作 */
const taskSignCreateFormRef = ref()
const handleSign = async () => {
  taskSignCreateFormRef.value.open(runningTask.value.id)
}
/** 获得详情 */
const getDetail = () => {
  emit('success')
}

defineExpose({ loadRunningTask })
</script>

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

.btn-container {
  > div {
    margin: 0 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    &:hover {
      color: #6db5ff;
    }
  }
}
</style>
