<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入标题"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </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-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['safe:process:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['safe:process:edit']"
        >修改</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="['safe:process:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
		  :loading="exportLoading"
          @click="handleExport"
          v-hasPermi="['safe:process:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="processList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="标题" align="center" prop="title" />
      <el-table-column label="内容" align="center" prop="content" />
      <el-table-column label="附件" align="center" prop="attachment" >
        <template slot-scope="scope">
          <div v-if="scope.row.attachment">
            <el-dropdown trigger="click" placement="bottom">
              <span style="color: #1c84c6; cursor: pointer;text-align: center">
                查看附件 ({{ JSON.parse(scope.row.attachment).length }}) <i class="el-icon-arrow-down el-icon--right"></i>
              </span>
              <el-dropdown-menu slot="dropdown">
                <el-dropdown-item
                  v-for="(file, index) in JSON.parse(scope.row.attachment)"
                  :key="index"
                >
                  <a
                    @click="downloadFile(file)"
                    style="color: #1c84c6; text-decoration: none; display: block;"
                  >
                    <i class="el-icon-document"></i> {{ file.name || `附件${index + 1}` }}
                  </a>
                </el-dropdown-item>
              </el-dropdown-menu>
            </el-dropdown>
          </div>
          <span v-else>-</span>
        </template>
      </el-table-column>
      <el-table-column label="创建人" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" />
      <el-table-column label="备注" align="center" prop="remarks" />
      <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="['safe:process:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['safe:process:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

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

    <!-- 添加或修改工业流程图对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="900px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="12">
            <el-form-item label="标题" prop="title">
              <el-input v-model="form.title" placeholder="请输入标题" />
            </el-form-item>
          </el-col>
        </el-row>

        <el-form-item label="内容" prop="content">
          <el-input type="textarea" :autosize="{ minRows: 4}" v-model="form.content" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="附件" prop="attachment">
          <!--<fileUpload v-model="form.attachment"/>-->
          <MultipleFileUpload v-model="form.attachment" ref="attachment"/>
        </el-form-item>
        <el-form-item label="备注" prop="remarks">
          <el-input type="textarea" v-model="form.remarks" placeholder="请输入备注" />
        </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>
  </div>
</template>

<script>
import { listProcess, getProcess, delProcess, addProcess, updateProcess, exportProcess } from "@/api/safe/process";
import Editor from '@/components/Editor';
import MultipleFileUpload from '@/components/MultipleFileUpload';
export default {
  name: "Process",
  components: {
    Editor,
    MultipleFileUpload
  },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 导出遮罩层
      exportLoading: false,
      // 选中数组
      ids: [],
      titles: [],
      // 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,
      // 工业流程图表格数据
      processList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        title: null,
        content: null,
        attachment: null,
        isDel: null,
        remarks: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询工业流程图列表 */
    getList() {
      this.loading = true;
      listProcess(this.queryParams).then(response => {
        this.processList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        processId: null,
        title: null,
        content: null,
        attachment: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null,
        isDel: null,
        remarks: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.processId);
      this.titles = selection.map(item => item.title);
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加工业流程图";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const processId = row.processId || this.ids
      getProcess(processId).then(response => {
        this.form = response.data;
        this.$nextTick(() => {
          if(this.form.attachment){
            this.$refs.attachment.fileList = JSON.parse(this.form.attachment)
          }
        })
        this.open = true;
        this.title = "修改工业流程图";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.processId != null) {
            updateProcess(this.form).then(response => {
              this.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addProcess(this.form).then(response => {
              this.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const processIds = row.processId || this.ids;
      const titles = row.title || this.titles;
      this.$confirm('是否确认删除工业流程图标题为"' + titles + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delProcess(processIds);
        }).then(() => {
          this.getList();
          this.msgSuccess("删除成功");
        }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      const queryParams = this.queryParams;
      this.$confirm('是否确认导出所有工业流程图数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(() => {
          this.exportLoading = true;
          return exportProcess(queryParams);
        }).then(response => {
          this.download(response.msg);
          this.exportLoading = false;
        }).catch(() => {});
    },
    async downloadFile(file) {
      try {
        const response = await fetch(file.url)
        const blob = await response.blob()

        // 创建下载链接
        const url = window.URL.createObjectURL(blob)
        const link = document.createElement('a')
        link.href = url
        link.download = file.name // 这里可以自定义文件名
        document.body.appendChild(link)
        link.click()

        // 清理
        document.body.removeChild(link)
        window.URL.revokeObjectURL(url)

        this.$message.success('开始下载')
      } catch (error) {
        console.error('下载失败:', error)
        this.$message.error('下载失败，请重试')

        // 降级方案：直接打开新窗口
        window.open(file.url, '_blank')
      }
    }
  }
};
</script>
