<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="内容" prop="content">
        <el-input
          v-model="queryParams.content"
          placeholder="请输入通知内容"
          clearable
          @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="['routine:NotificationManagement: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="['routine:NotificationManagement: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="['routine:NotificationManagement: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="['routine:NotificationManagement:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="NotificationManagementList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" type="index" align="center" prop="id" />
      <el-table-column label="收信人用户id" align="center" prop="receiver" />
      <el-table-column label="消息内容" align="center" prop="content" />
      <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="['routine:NotificationManagement:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['routine:NotificationManagement: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"
    />

    <!-- 添加或修改通知管理对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <!-- 发送方式选择 -->
        <el-form-item label="发送方式" prop="sendType">
          <el-radio-group v-model="form.sendType" @change="handleSendTypeChange">
            <el-radio label="grade">按年级发送</el-radio>
          </el-radio-group>
        </el-form-item>
        
        <!-- 年级多选 -->
        <el-form-item 
          v-if="form.sendType === 'grade'" 
          label="选择年级" 
          prop="selectedGrades"
        >
          <el-select 
            v-model="form.selectedGrades" 
            multiple 
            placeholder="请选择年级"
            style="width: 100%"
          >
            <el-option
              v-for="grade in gradeList"
              :key="grade.value"
              :label="grade.label"
              :value="grade.value"
            />
          </el-select>
        </el-form-item>
        
        <el-form-item label="消息内容" prop="content">
          <editor v-model="form.content" :min-height="192"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">发送</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listNotificationManagement, getNotificationManagement, delNotificationManagement, addNotificationManagement, updateNotificationManagement, getGradeList, sendNotificationByGrades } from "@/api/routine/NotificationManagement";

export default {
  name: "NotificationManagement",
  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,
      // 通知管理表格数据
      NotificationManagementList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 年级列表
      gradeList: [],
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        sender: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        sendType: [
          { required: true, message: "请选择发送方式", trigger: "change" }
        ],
        content: [
          { required: true, message: "请输入消息内容", trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.getList();
    this.getGradeList();
  },
  methods: {
    /** 查询通知管理列表 */
    getList() {
      this.loading = true;
      listNotificationManagement(this.queryParams).then(response => {
        this.NotificationManagementList = 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 = {
        id: null,
        sender: null,
        receiver: null,
        content: null,
        sendType: 'user',
        selectedGrades: [],
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: 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.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加通知管理";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getNotificationManagement(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改通知管理";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          // 验证发送方式对应的必填字段
          if (this.form.sendType === 'user' && !this.form.receiver) {
            this.$modal.msgError("请输入收信人用户学号");
            return;
          }
          if (this.form.sendType === 'grade' && (!this.form.selectedGrades || this.form.selectedGrades.length === 0)) {
            this.$modal.msgError("请选择年级");
            return;
          }
          
          if (this.form.id != null) {
            // 修改操作
            updateNotificationManagement(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            // 新增操作
            if (this.form.sendType === 'grade') {
              // 按年级发送
              const data = {
                content: this.form.content,
                selectedGrades: this.form.selectedGrades
              };
              sendNotificationByGrades(data).then(response => {
                this.$modal.msgSuccess("通知发送成功");
                this.open = false;
                this.getList();
              });
            } 
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除通知管理编号为"' + ids + '"的数据项？').then(function() {
        return delNotificationManagement(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('NotificationManagement/NotificationManagement/export', {
        ...this.queryParams
      }, `NotificationManagement_${new Date().getTime()}.xlsx`)
    },
    
    /** 获取年级列表 */
    getGradeList() {
      getGradeList().then(response => {
        // 假设后端返回的数据格式为 [{ gradeId: 1, gradeName: "2021级" }, ...]
        // 转换为下拉框需要的格式
        this.gradeList = response.data.map(item => ({
          value: item.gradeId || item.id,
          label: item.gradeName || item.name
        }));
      }).catch(() => {
        // 如果接口不存在，使用默认数据
        this.gradeList = [
          { value: '2022', label: '2022级' },
          { value: '2023', label: '2023级' },
          { value: '2024', label: '2024级' }
        ];
      });
    },
    
    /** 发送方式改变时的处理 */
    handleSendTypeChange(value) {
      // 清空相关字段
      if (value === 'user') {
        this.form.selectedGrades = [];
      } else if (value === 'grade') {
        this.form.receiver = null;
      }
      
      // 重新设置表单验证规则
      this.$nextTick(() => {
        this.$refs.form && this.$refs.form.clearValidate();
      });
    }
  }
};
</script>
