<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="标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="发布人" prop="publishBy">
        <el-input
          v-model="queryParams.publishBy"
          placeholder="请输入发布人"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="发布时间">
        <el-date-picker
          v-model="dateRange"
          style="width: 240px"
          value-format="yyyy-MM-dd"
          type="daterange"
          range-separator="-"
          start-placeholder="开始日期"
          end-placeholder="结束日期"
        ></el-date-picker>
      </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="['homepage:news: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="['homepage:news: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="['homepage:news:remove']"
        >删除</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="newsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" align="center" prop="newsId" width="100" />
      <el-table-column
        label="标题"
        align="center"
        prop="title"
        :show-overflow-tooltip="true"
      />
      <el-table-column label="图片" align="center" prop="image" width="100">
        <template slot-scope="scope">
          <el-image
            v-if="scope.row.image"
            style="width: 50px; height: 50px"
            :src="scope.row.image"
            :preview-src-list="[scope.row.image]"
          />
        </template>
      </el-table-column>
      <el-table-column
        label="概述"
        align="center"
        prop="summary"
        :show-overflow-tooltip="true"
      />
      <el-table-column label="发布时间" align="center" prop="publishTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.publishTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="发布人" align="center" prop="publishBy" width="100" />
      <el-table-column label="状态" align="center" prop="status" width="100">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.sys_normal_disable" :value="scope.row.status"/>
        </template>
      </el-table-column>
      <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-view"
            @click="handleView(scope.row)"
          >查看</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['homepage:news:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['homepage:news: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"
    />

    <el-dialog :title="title" :visible.sync="open" width="780px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24">
            <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-col :span="24">
            <el-form-item label="图片" prop="image">
              <image-upload v-model="form.image"/>
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="概述" prop="summary">
              <el-input v-model="form.summary" type="textarea" placeholder="请输入概述" />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="富文本" prop="content">
              <editor v-model="form.content" :min-height="192"/>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="发布时间" prop="publishTime">
              <el-date-picker clearable
                v-model="form.publishTime"
                type="date"
                value-format="yyyy-MM-dd"
                placeholder="请选择发布时间">
              </el-date-picker>
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="发布人" prop="publishBy">
              <el-input v-model="form.publishBy" placeholder="请输入发布人" />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="状态">
              <el-radio-group v-model="form.status">
                <el-radio
                  v-for="dict in dict.type.sys_normal_disable"
                  :key="dict.value"
                  :label="dict.value"
                >{{dict.label}}</el-radio>
              </el-radio-group>
            </el-form-item>
          </el-col>
        </el-row>
      </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>

    <el-dialog title="查看详情" :visible.sync="viewOpen" width="780px" append-to-body>
      <el-descriptions :column="1" border>
        <el-descriptions-item label="标题">{{ viewData.title }}</el-descriptions-item>
        <el-descriptions-item label="图片">
          <el-image
            v-if="viewData.image"
            style="width: 200px; height: 200px"
            :src="viewData.image"
            :preview-src-list="[viewData.image]"
          />
        </el-descriptions-item>
        <el-descriptions-item label="概述">{{ viewData.summary }}</el-descriptions-item>
        <el-descriptions-item label="富文本">
          <div v-html="viewData.content"></div>
        </el-descriptions-item>
        <el-descriptions-item label="发布时间">{{ parseTime(viewData.publishTime) }}</el-descriptions-item>
        <el-descriptions-item label="发布人">{{ viewData.publishBy }}</el-descriptions-item>
      </el-descriptions>
      <div slot="footer" class="dialog-footer">
        <el-button @click="viewOpen = false">关 闭</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listNews, getNews, delNews, addNews, updateNews } from "@/api/homepage/news"

export default {
  name: "News",
  dicts: ['sys_normal_disable'],
  data() {
    return {
      loading: true,
      ids: [],
      single: true,
      multiple: true,
      showSearch: true,
      total: 0,
      newsList: [],
      title: "",
      open: false,
      viewOpen: false,
      viewData: {},
      dateRange: [],
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        title: undefined,
        publishBy: undefined
      },
      form: {},
      rules: {
        title: [
          { required: true, message: "标题不能为空", trigger: "blur" }
        ]
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    getList() {
      this.loading = true
      listNews(this.addDateRange(this.queryParams, this.dateRange)).then(response => {
        this.newsList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    cancel() {
      this.open = false
      this.reset()
    },
    reset() {
      this.form = {
        newsId: undefined,
        title: undefined,
        image: undefined,
        summary: undefined,
        content: undefined,
        publishTime: undefined,
        publishBy: undefined,
        status: "0"
      }
      this.resetForm("form")
    },
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    resetQuery() {
      this.dateRange = []
      this.resetForm("queryForm")
      this.handleQuery()
    },
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.newsId)
      this.single = selection.length!=1
      this.multiple = !selection.length
    },
    handleAdd() {
      this.reset()
      this.open = true
      this.title = "添加新闻动态"
    },
    handleUpdate(row) {
      this.reset()
      const newsId = row.newsId || this.ids
      getNews(newsId).then(response => {
        this.form = response.data
        this.open = true
        this.title = "修改新闻动态"
      })
    },
    handleView(row) {
      const newsId = row.newsId
      getNews(newsId).then(response => {
        this.viewData = response.data
        this.viewOpen = true
      })
    },
    submitForm: function() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.newsId != undefined) {
            updateNews(this.form).then(() => {
              this.$modal.msgSuccess("修改成功")
              this.open = false
              this.getList()
            })
          } else {
            addNews(this.form).then(() => {
              this.$modal.msgSuccess("新增成功")
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    handleDelete(row) {
      const newsIds = row.newsId || this.ids
      this.$modal.confirm('是否确认删除新闻动态编号为"' + newsIds + '"的数据项？').then(function() {
        return delNews(newsIds)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess("删除成功")
      }).catch(() => {})
    }
  }
}
</script>
