<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="模型标识" prop="modelKey">
        <el-input
          v-model="queryParams.modelKey"
          placeholder="请输入模型标识"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="模型名称" prop="modelName">
        <el-input
          v-model="queryParams.modelName"
          placeholder="请输入模型名称"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="流程分类" prop="category">
        <el-select v-model="queryParams.category" clearable placeholder="请选择" size="small">
          <el-option
            v-for="item in categoryOptions"
            :key="item.categoryId"
            :label="item.categoryName"
            :value="item.code">
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="primary"-->
<!--          plain-->
<!--          icon="el-icon-upload"-->
<!--          size="mini"-->
<!--          @click="handleImport"-->
<!--          v-hasPermi="['workflow:model:import']"-->
<!--        >导入</el-button>-->
<!--      </el-col>-->
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['workflow:model:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['workflow:model:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['workflow:model:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" fit :data="modelList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="流程ID" align="center" prop="modelKey" :show-overflow-tooltip="true" />
      <el-table-column label="流程名称" align="center" :show-overflow-tooltip="true">
        <template slot-scope="scope">
          <el-button type="text" @click="handleProcessView(scope.row)">
            <span>{{ scope.row.modelName }}</span>
          </el-button>
        </template>
      </el-table-column>
      <el-table-column label="流程分类" align="center" prop="categoryName" :formatter="categoryFormat" />
      <el-table-column label="模型版本" align="center">
        <template slot-scope="scope">
          <el-tag size="medium" >v{{ scope.row.version }}</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="描述" align="center" prop="description" :show-overflow-tooltip="true" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['workflow:model:edit']"
          >修改</el-button>
          <el-button
            type="text"
            size="mini"
            icon="el-icon-brush"
            @click="handleDesigner(scope.row)"
            v-hasPermi="['workflow:model:designer']"
          >设计</el-button>
          <el-button
            type="text"
            size="mini"
            icon="el-icon-video-play"
            v-hasPermi="['workflow:model:deploy']"
            @click.native="handleDeploy(scope.row)"
          >部署</el-button>
          <el-dropdown size="mini" v-hasPermi="['workflow:model:query', 'workflow:model:list', 'workflow:model:remove']">
            <el-button size="mini" type="text" icon="el-icon-d-arrow-right">更多</el-button>
            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item
                icon="el-icon-view"
                @click.native="handleProcessView(scope.row)"
                v-hasPermi="['workflow:model:query']"
              >流程图</el-dropdown-item>
              <el-dropdown-item
                icon="el-icon-price-tag"
                @click.native="handleHistory(scope.row)"
                v-hasPermi="['workflow:model:list']"
              >历史</el-dropdown-item>
              <el-dropdown-item
                icon="el-icon-delete"
                @click.native="handleDelete(scope.row)"
                v-hasPermi="['workflow:model:remove']"
              >删除</el-dropdown-item>
            </el-dropdown-menu>
          </el-dropdown>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!--  添加或修改模型信息对话框  -->
    <el-dialog :title="title" :visible.sync="open" width="30%" append-to-body @close="cancel()">
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="模型标识" prop="modelKey">
          <el-input v-model="form.modelKey" clearable disabled />
        </el-form-item>
        <el-form-item label="模型名称" prop="modelName">
          <el-input v-model="form.modelName" clearable :disabled="form.modelId !== undefined" />
        </el-form-item>
        <el-form-item label="流程分类" prop="category">
          <el-select v-model="form.category" placeholder="请选择" clearable style="width:100%">
            <el-option v-for="item in categoryOptions" :key="item.categoryId" :label="item.categoryName" :value="item.code" />
          </el-select>
        </el-form-item>
        <el-form-item label="描述" prop="description">
          <el-input v-model="form.description" type="textarea" placeholder="请输入内容" maxlength="200" show-word-limit/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel()">取 消</el-button>
      </div>
    </el-dialog>


  <!--  &lt;!&ndash; bpmn20.xml导入对话框 &ndash;&gt;-->
  <!--  <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body @close="cancel('uploadForm')">-->
  <!--    <el-upload-->
  <!--      ref="upload"-->
  <!--      :limit="1"-->
  <!--      accept=".xml"-->
  <!--      :headers="upload.headers"-->
  <!--      :action="upload.url + '?name=' + upload.name+'&category='+ upload.category"-->
  <!--      :disabled="upload.isUploading"-->
  <!--      :on-progress="handleFileUploadProgress"-->
  <!--      :on-success="handleFileSuccess"-->
  <!--      :auto-upload="false"-->
  <!--      drag-->
  <!--    >-->
  <!--      <i class="el-icon-upload"></i>-->
  <!--      <div class="el-upload__text">-->
  <!--        将文件拖到此处，或-->
  <!--        <em>点击上传</em>-->
  <!--      </div>-->
  <!--      <div class="el-upload__tip" slot="tip">-->
  <!--        <el-form ref="uploadForm" :model="upload" size="mini" :rules="rules" label-width="80px">-->
  <!--          <el-form-item label="流程名称" prop="name">-->
  <!--            <el-input v-model="upload.name" clearable/>-->
  <!--          </el-form-item>-->
  <!--          <el-form-item label="流程分类" prop="category">-->
  <!--            <el-select v-model="upload.category" placeholder="请选择" clearable style="width:100%">-->
  <!--              <el-option v-for="item in categoryOptions" :key="item.categoryId" :label="item.categoryName"-->
  <!--                         :value="item.code"/>-->
  <!--            </el-select>-->
  <!--          </el-form-item>-->
  <!--        </el-form>-->
  <!--      </div>-->
  <!--      <div class="el-upload__tip" style="color:red" slot="tip">提示：仅允许导入“bpmn20.xml”格式文件！</div>-->
  <!--    </el-upload>-->
  <!--    <div slot="footer" class="dialog-footer">-->
  <!--      <el-button type="primary" @click="submitFileForm">确 定</el-button>-->
  <!--      <el-button @click="cancel('uploadForm')">取 消</el-button>-->
  <!--    </div>-->
  <!--  </el-dialog>-->

    <!-- 流程图 -->
    <el-dialog :title="processView.title" :visible.sync="processView.open" width="70%" append-to-body>
      <process-viewer :key="`designer-${processView.index}`" :xml="processView.xmlData" :style="{height: '400px'}" />
    </el-dialog>

    <el-dialog title="模型历史" :visible.sync="history.open" width="70%" >
      <el-table v-loading="history.loading" fit :data="historyList" @selection-change="handleSelectionChange">
        <el-table-column type="selection" width="55" align="center" />
        <el-table-column label="模型标识" align="center" prop="modelKey" :show-overflow-tooltip="true" />
        <el-table-column label="模型名称" align="center" :show-overflow-tooltip="true">
          <template slot-scope="scope">
            <el-button type="text" @click="handleProcessView(scope.row)">
              <span>{{ scope.row.modelName }}</span>
            </el-button>
          </template>
        </el-table-column>
        <el-table-column label="流程分类" align="center" prop="categoryName" :formatter="categoryFormat" />
        <el-table-column label="模型版本" align="center">
          <template slot-scope="scope">
            <el-tag size="medium" >v{{ scope.row.version }}</el-tag>
          </template>
        </el-table-column>
        <el-table-column label="描述" align="center" prop="description" :show-overflow-tooltip="true" />
        <el-table-column label="创建时间" align="center" prop="createTime" width="180"/>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
          <template slot-scope="scope">
            <el-button
              type="text"
              size="mini"
              icon="el-icon-video-play"
              v-hasPermi="['workflow:model:deploy']"
              @click.native="handleDeploy(scope.row)"
            >部署</el-button>
            <el-button
              type="text"
              size="mini"
              icon="el-icon-star-off"
              v-hasPermi="['workflow:model:save']"
              @click.native="handleLatest(scope.row)"
            >设为最新</el-button>
          </template>
        </el-table-column>
      </el-table>

      <pagination
        v-show="historyTotal > 0"
        :total="historyTotal"
        :page.sync="queryHistoryParams.pageNum"
        :limit.sync="queryHistoryParams.pageSize"
        @pagination="getHistoryList"
      />
    </el-dialog>

    <el-dialog :title="designerData.title" :visible.sync="designerOpen" append-to-body fullscreen>
      <process-designer
        :key="designerOpen"
        style="border:1px solid rgba(0, 0, 0, 0.1);"
        ref="modelDesigner"
        v-loading="designerData.loading"
        :bpmnXml="designerData.bpmnXml"
        :designerForm="designerData.form"
        @save="onSaveDesigner"
      />
    </el-dialog>
  </div>

</template>

<script>
import { getBpmnXml, listModel, historyModel, latestModel, addModel, updateModel, saveModel, delModel, deployModel } from "@/api/workflow/model";
import { listCategory } from '@/api/workflow/category'
import ProcessDesigner from '@/components/ProcessDesigner';
import ProcessViewer from '@/components/ProcessViewer'
import { getToken } from "@/utils/auth";

export default {
  name: "Model",
  components: {
    ProcessDesigner,
    ProcessViewer,
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 流程模型表格数据
      modelList: [],
      categoryOptions: [],
      title: '',
      open: false,
      form: {},
      // 表单校验
      rules: {
        modelKey: [
          { required: true, message: "模型标识不能为空", trigger: "blur" }
        ],
        modelName: [
          { required: true, message: "模型名称不能为空", trigger: "blur" }
        ],
        category: [
          { required: true, message: "请选择类型", trigger: "change" }
        ],
      },
      designerOpen: false,
      designerData: {
        loading: false,
        bpmnXml: '',
        modelId: null,
        form: {
          processName: null,
          processKey: null
        }
      },
      designerModelId: null,
      processView: {
        title: '',
        open: false,
        index: undefined,
        xmlData:"",
      },
      // bpmn.xml 导入
      upload: {
        // 是否显示弹出层（xml导入）
        open: false,
        // 弹出层标题（xml导入）
        title: "",
        // 是否禁用上传
        isUploading: false,
        name: null,
        category: null,
        // 设置上传的请求头部
        headers: { Authorization: "Bearer " + getToken() },
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/workflow/definition/import"
      },
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        modelKey: null,
        modelName: null,
        category: null
      },
      currentRow: null,
      history: {
        open: false,
        loading: false
      },
      historyList: [],
      historyTotal: 0,
      queryHistoryParams: {
        pageNum: 1,
        pageSize: 10,
        modelKey: null
      }
    };
  },
  created() {
    this.getCategoryList();
    this.getList();
  },
  methods: {
    /** 查询流程分类列表 */
    getCategoryList() {
      listCategory().then(response => this.categoryOptions = response.rows)
    },
    /** 查询流程模型列表 */
    getList() {
      this.loading = true;
      listModel(this.queryParams).then(response => {
        this.modelList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    cancel() {
      this.reset();
      // 关闭dialog
      this.open = false
    },
    // 表单重置
    reset() {
      this.form = {
        modelId: undefined,
        modelKey: undefined,
        modelName: undefined,
        category: undefined,
        description: undefined
      };
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.$refs.queryForm.resetFields()
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.modelId)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 部署流程 */
    handleDeploy(row) {
      this.loading = true;
      deployModel({
        modelId: row.modelId
      }).then(response => {
        this.$modal.msgSuccess(response.msg);
        let obj = { name: 'Deploy', path: '/workflow/deploy' }
        return this.$store.dispatch('tagsView/delCachedView', obj).then(() => {
          this.$router.push(obj);
        });
      }).finally(() => {
        this.loading = false;
      })
    },
    /** 查看流程图 */
    handleProcessView(row) {
      let modelId = row.modelId;
      this.processView.title = "流程图";
      this.processView.index = modelId;
      // 发送请求，获取xml
      getBpmnXml(modelId).then(response => {
        this.processView.xmlData = response.data;
      })
      this.processView.open = true;
    },
    getHistoryList() {
      this.history.loading = true;
      historyModel(this.queryHistoryParams).then(response => {
        this.historyTotal = response.total;
        this.historyList = response.rows;
        this.history.loading = false;
      })
    },
    handleHistory(row) {
      this.history.open = true;
      this.queryHistoryParams.modelKey = row.modelKey;
      this.getHistoryList();
    },
    /** 设为最新版 */
    handleLatest(row) {
      this.$modal.confirm('是否确认将此版本设为最新？').then(() => {
        this.history.loading = true;
        latestModel({
          modelId: row.modelId
        }).then(response => {
          this.history.open = false;
          this.getList();
          this.$modal.msgSuccess(response.msg);
        }).finally(() => {
          this.history.loading = false;
        })
      })
    },
    handleCurrentChange(data) {
      if (data) {
        this.currentRow = JSON.parse(data.content);
      }
    },
    handleAdd() {
      this.title = "新增流程模型";
      const dateTime = new Date().getTime();
      this.form = {
        modelKey: `Process_${dateTime}`,
        modelName: `业务流程_${dateTime}`
      }
      this.open = true;
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.title = "修改流程模型";
      this.form = {
        modelId: row.modelId,
        modelKey: row.modelKey,
        modelName: row.modelName,
        category: row.category,
        description: row.description
      };
      this.open = true;
    },
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.modelId !== undefined) {
            updateModel(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addModel(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 设计按钮操作 */
    handleDesigner(row) {
      this.designerData.title = "流程设计 - " + row.modelName;
      this.designerData.modelId = row.modelId;
      this.designerData.form = {
        processName: row.modelName,
        processKey: row.modelKey
      }
      if (row.modelId) {
        this.designerData.loading = true;
        getBpmnXml(row.modelId).then(response => {
          this.designerData.bpmnXml = response.data || '';
          this.designerData.loading = false;
          this.designerOpen = true;
        })
      }
    },
    onSaveDesigner(bpmnXml) {
      this.bpmnXml = bpmnXml;
      let dataBody = {
        modelId: this.designerData.modelId,
        bpmnXml: this.bpmnXml
      }
      this.$confirm("是否将此模型保存为新版本？", "提示", {
        distinguishCancelAndClose: true,
        confirmButtonText: '是',
        cancelButtonText: '否'
      }).then(() => {
        this.confirmSave(dataBody, true)
      }).catch(action => {
        if (action === 'cancel') {
          this.confirmSave(dataBody, false)
        }
      })
    },
    confirmSave(body, newVersion) {
      this.designerData.loading = true;
      saveModel(Object.assign(body, {
        newVersion: newVersion
      })).then(() => {
        this.designerOpen = false;
        this.getList();
      }).finally(() => {
        this.designerData.loading = false;
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const modelIds = row.modelId || this.ids;
      this.$modal.confirm('是否确认删除模型编号为"' + modelIds + '"的数据项？').then(() => {
        this.loading = true;
        return delModel(modelIds);
      }).then(() => {
        this.loading = false;
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).finally(() => {
        this.loading = false;
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('workflow/model/export', {
        ...this.queryParams
      }, `wf_model_${new Date().getTime()}.xlsx`)
    },
    /** 导入bpmn.xml文件 */
    handleImport() {
      this.upload.title = "bpmn20.xml文件导入";
      this.upload.open = true;
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false;
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.$message.success(response.msg);
      this.getList();
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.uploadForm.validate(valid => {
        if (valid) {
          this.$refs.upload.submit();
        }
      });
    },
    categoryFormat(row, column) {
      return this.categoryOptions.find(k => k.code === row.category)?.categoryName ?? '';
    },
    submitSave() {
      this.getList();
    }
  }
};
</script>
