<template>
  <div class="app-container">
    <el-drawer
      v-if="onOpen"
      :visible.sync="onOpen"
      ref="drawer"
      direction="rtl"
      size="60%"
      @close="closeCallBack"
    >
      <template slot="title">
        <div>工程管理 【{{ title }}】</div>
      </template>
      <el-form
        ref="form"
        :model="form"
        :rules="rules"
        v-loading="loading"
        label-width="120px"
        style="padding-right: 35px"
      >
        <div class="block containers">
          <div class="canvas" ref="flowCanvas"></div>
          <div class="maskLayer" />
        </div>
        <el-form-item label="所属项目" prop="businessKey">
          <el-select
            v-model="form.businessKey"
            placeholder="请选择所属项目"
            style="width: 100%"
            filterable
            :disabled="disPro"
            @change="projectChage"
          >
            <el-option
              v-for="(item, index) in projectOptions"
              :key="index"
              :label="item.projectName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="发起单位">
          {{ deptName }}
        </el-form-item>
        <el-form-item label="发起人">
          {{ nickName }}
        </el-form-item>
        <el-form-item label="审批事项">
          {{ title }}
        </el-form-item>
        <el-form-item label="审批内容" prop="files">
          <FileUpload
            @input="fileInput"
            :limit="9"
            v-model="form.files"
            :fileType="['pdf', 'png', 'jpg', 'jpeg', 'doc', 'docx', 'xls', 'xlsx']"
          />
        </el-form-item>
        <el-form-item label="申请说明" prop="remark">
          <el-input
            type="textarea"
            v-model="form.remark"
            placeholder="请输入申请说明"
            rows="5"
          />
        </el-form-item>
        <div style="text-align: center">
          <el-button type="primary" @click="submitForm">提交流程</el-button>
          <el-button @click="doCanel">取 消</el-button>
        </div>
      </el-form>
    </el-drawer>
  </div>
</template>

<script>
import store from "@/store";
import { definitionStart, flowXmlAndNode } from "@/api/flowable/definition";
import { CustomViewer as BpmnViewer } from "@/components/customBpmn";
import { findFormDatasByProcInsId } from "@/api/flowable/businessKey";
import { complete, getNextFlowNodeByStart } from "@/api/flowable/todo";

export default {
  components: {},
  props: {
    closeCallBack: {
      type: Function,
    },
  },
  data() {
    return {
      // 抽屉层
      onOpen: false,
      // 遮罩层
      loading: false,
      // 标题
      title: "",
      // 表单参数
      form: {
        businessKey: "",
        projectName: "",
        files: "",
        remark: "",
      },
      // 表单校验
      rules: {
        businessKey: [{ required: true, message: "请选择所属项目", trigger: "blur" }],
        files: [{ required: true, message: "请上传申请内容", trigger: "blur" }],
        remark: [
          { required: false, message: "请输入申请说明", trigger: "blur" },
          {
            max: 500,
            message: "申请说明最多输入500字",
            trigger: "blur",
          },
        ],
      },
      projectOptions: null,
      deptName: null,
      nickName: null,
      disPro: false,
      bpmnViewer: null,
      options: {},
      taskTitle: null,
      taskOpen: false,
      daterangeMarksTime: [],
    };
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {},
  beforeDestroy() {},
  methods: {
    // 查询和我相关的项目信息
    initMyProject() {
      // 获取项目列表的接口
      this.$api.publics.getMyProjectList({}).then((response) => {
        this.projectOptions = response.rows;
        if (response.rows.length == 0) {
          this.$message.error("未查询到和您关联项目，请联系子公司或管理员...");
        } else if (response.rows.length == 1) {
          // 这里只有一个项目，默认选中并只读
          this.form.businessKey = response.rows[0].id;
          this.form.projectName = response.rows[0].projectName;
        }
      });
    },
    // 项目选择
    projectChage(val) {
      let projectName = "";
      this.projectOptions.forEach((item) => {
        if ((item.id = val)) {
          projectName = item.projectName;
          return;
        }
      });
      this.form.projectName = projectName;
    },
    doCanel() {
      this.onOpen = false;
    },
    show(options) {
      this.options = options;
      this.onOpen = true;
      //判断是否重新发起
      if(options.procInsId){
        this.title = options.procDefName;
        this.initFormDate(options.procInsId);
        flowXmlAndNode({ procInsId:options.procInsId, deployId: options.deployId }).then((res) => {
          this.initFlowImage(res.data);
        });
      }else{
        this.initMyProject();
        this.title = options.name;
        this.deptName = store.getters.dept.deptName;
        this.nickName = store.getters.name;
        flowXmlAndNode({ deployId: options.deploymentId }).then((res) => {
          this.initFlowImage(res.data);
        });
      }
    },
    async initFlowImage(data) {
      const self = this;
      try {
        self.bpmnViewer = new BpmnViewer({
          container: this.$refs.flowCanvas,
          height: "150px",
        });
        await self.bpmnViewer.importXML(data.xmlData);
        // 自适应
        self.bpmnViewer.get("canvas").zoom("fit-viewport", "auto");
        if (data.nodeData !==undefined && data.nodeData.length > 0 ) {
          self.fillColor(data.nodeData)
        }
      } catch (err) {
        console.error(err.message, err.warnings);
      }
    },
    /** 流程表单数据 */
    initFormDate(procInsId, deployId) {
      this.projectOptions=[{id:this.options.businessKey,projectName:this.options.businessKeyName}];
      const params = {procInsId: procInsId}
      findFormDatasByProcInsId(params).then(res => {
        this.form = res.data;
        this.deptName = this.options.startDeptName;
        this.nickName = this.options.startUserName;
        this.form.taskId = this.options.taskId;
        this.form.taskName = this.options.taskName;
        this.form.userId = store.getters.userId;
        this.form.procInsId = this.options.procInsId;
        this.form.instanceId = this.options.procInsId;
      }).catch(res => {
        this.$message.error("数据异常，请联系管理员...");
      })
    },
    fileInput(files) {
      let fileUrls = "";
      if (files.length > 0) {
        fileUrls = "";
        files.forEach((item) => {
          fileUrls += "," + item.url;
        });
        fileUrls = fileUrls.substring(1);
      }
      this.form.files = fileUrls;
    },
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          this.loading = true;
          // 根据当前任务或者流程设计配置的下一步节点 todo 暂时未涉及到考虑网关、表达式和多节点情况
          // getNextFlowNodeByStart({
          //   deploymentId: this.options.deploymentId,
          //   variables: this.form,
          // }).then((res) => {
          //   const data = res.data;
          //   if (data) {
          //     console.log(data);
          //     this.loading = false;
          //   }
          // });
          // 启动流程并将表单数据加入流程变量
          if(this.options.procInsId){
            this.form.variables={
              businessKey:this.form.businessKey,
              projectName:this.form.projectName,
              files:this.form.files,
              remark:this.form.remark,
              INITIATOR:this.form.INITIATOR
            }
            complete(this.form).then(res => {
              this.$store.dispatch('settingAwaitNum');
              this.$modal.msgSuccess("任务提交成功");
              this.loading = false;
              //关闭并刷新列表
              this.$refs.drawer.closeDrawer();
            });
          }else{
            definitionStart(this.options.id, JSON.stringify(this.form)).then((res) => {
            this.$modal.msgSuccess(res.msg);
            this.loading = false;
            //关闭并刷新列表
            this.$refs.drawer.closeDrawer();
          });
          }  
        }
      });
    },
    // 设置高亮颜色的
    fillColor(nodeData) {
      const canvas = this.bpmnViewer.get('canvas')
      this.bpmnViewer.getDefinitions().rootElements[0].flowElements.forEach(n => {
        const completeTask = nodeData.find(m => m.key === n.id)
        const todoTask = nodeData.find(m => !m.completed)
        const endTask = nodeData[nodeData.length - 1]
        if (n.$type === 'bpmn:UserTask') {
          if (completeTask) {
            canvas.addMarker(n.id, completeTask.completed ? 'highlight' : 'highlight-todo')
            n.outgoing?.forEach(nn => {
              const targetTask = nodeData.find(m => m.key === nn.targetRef.id)
              if (targetTask) {
                if (todoTask && completeTask.key === todoTask.key && !todoTask.completed){
                  canvas.addMarker(nn.id, todoTask.completed ? 'highlight' : 'highlight-todo')
                  canvas.addMarker(nn.targetRef.id, todoTask.completed ? 'highlight' : 'highlight-todo')
                }else {
                  canvas.addMarker(nn.id, targetTask.completed ? 'highlight' : 'highlight-todo')
                  canvas.addMarker(nn.targetRef.id, targetTask.completed ? 'highlight' : 'highlight-todo')
                }
              }
            })
          }
        }
        // 排他网关
        else if (n.$type === 'bpmn:ExclusiveGateway') {
          if (completeTask) {
            canvas.addMarker(n.id, completeTask.completed ? 'highlight' : 'highlight-todo')
            n.outgoing?.forEach(nn => {
              const targetTask = nodeData.find(m => m.key === nn.targetRef.id)
              if (targetTask) {

                canvas.addMarker(nn.id, targetTask.completed ? 'highlight' : 'highlight-todo')
                canvas.addMarker(nn.targetRef.id, targetTask.completed ? 'highlight' : 'highlight-todo')
              }

            })
          }

        }
        // 并行网关
        else if (n.$type === 'bpmn:ParallelGateway') {
          if (completeTask) {
            canvas.addMarker(n.id, completeTask.completed ? 'highlight' : 'highlight-todo')
            n.outgoing?.forEach(nn => {
              const targetTask = nodeData.find(m => m.key === nn.targetRef.id)
              if (targetTask) {
                canvas.addMarker(nn.id, targetTask.completed ? 'highlight' : 'highlight-todo')
                canvas.addMarker(nn.targetRef.id, targetTask.completed ? 'highlight' : 'highlight-todo')
              }
            })
          }
        }
        else if (n.$type === 'bpmn:StartEvent') {
          n.outgoing.forEach(nn => {
            const completeTask = nodeData.find(m => m.key === nn.targetRef.id)
            if (completeTask) {
              canvas.addMarker(nn.id, 'highlight')
              canvas.addMarker(n.id, 'highlight')
              return
            }
          })
        }
        else if (n.$type === 'bpmn:EndEvent') {
          if (endTask.key === n.id && endTask.completed) {
            canvas.addMarker(n.id, 'highlight')
            return
          }
        }
      })
    },
  },
};
</script>
<style lang="scss">
.bjs-powered-by {
  display: none !important;
}
.maskLayer {
  width: 100%;
  height: 150px;
  position: absolute;
  z-index: 9999;
  top: 66px;
}
.app-container{
  .containers {
    .canvas {
      width: 100%;
      height: 150px;
    }
    .panel {
      position: absolute;
      right: 0;
      top: 50px;
      width: 300px;
    }
    .load {
      margin-right: 10px;
    }
    .el-form-item__label{
      font-size: 13px;
    }

    .djs-palette{
      left: 0px!important;
      top: 0px;
      border-top: none;
    }

    .djs-container svg {
      min-height: 150px;
    }

    .highlight.djs-shape .djs-visual > :nth-child(1) {
      fill: green !important;
      stroke: green !important;
      fill-opacity: 0.2 !important;
    }
    .highlight.djs-shape .djs-visual > :nth-child(2) {
      fill: green !important;
    }
    .highlight.djs-shape .djs-visual > path {
      fill: green !important;
      fill-opacity: 0.2 !important;
      stroke: green !important;
    }
    .highlight.djs-connection > .djs-visual > path {
      stroke: green !important;
    }
    .highlight-todo.djs-connection > .djs-visual > path {
      stroke: orange !important;
      stroke-dasharray: 4px !important;
      fill-opacity: 0.2 !important;
    }
    .highlight-todo.djs-shape .djs-visual > :nth-child(1) {
      fill: orange !important;
      stroke: orange !important;
      stroke-dasharray: 4px !important;
      fill-opacity: 0.2 !important;
    }
    .overlays-div {
      font-size: 10px;
      color: red;
      width: 100px;
      top: -20px !important;
    }
  }
}
</style>
