<template>
  <div class="app-container">
    <el-row>
      <el-col :span="24" class="card-box">
        <el-card>
          <div slot="header"><span>基本信息</span></div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <table cellspacing="0" style="width: 100%">
              <tbody>
                <tr>
                  <td><div class="cell">Redis版本</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.redis_version }}</div></td>
                  <td><div class="cell">运行模式</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.redis_mode == "standalone" ? "单机" : "集群" }}</div></td>
                  <td><div class="cell">端口</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.tcp_port }}</div></td>
                  <td><div class="cell">客户端数</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.connected_clients }}</div></td>
                </tr>
                <tr>
                  <td><div class="cell">运行时间(天)</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.uptime_in_days }}</div></td>
                  <td><div class="cell">使用内存</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.used_memory_human }}</div></td>
                  <td><div class="cell">使用CPU</div></td>
                  <td><div v-if="cache.info" class="cell">{{ parseFloat(cache.info.used_cpu_user_children).toFixed(2) }}</div></td>
                  <td><div class="cell">内存配置</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.maxmemory_human }}</div></td>
                </tr>
                <tr>
                  <td><div class="cell">AOF是否开启</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.aof_enabled === "0" ? "否" : "是" }}</div></td>
                  <td><div class="cell">RDB是否成功</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.rdb_last_bgsave_status }}</div></td>
                  <td><div class="cell">Key数量</div></td>
                  <td><div v-if="cache.dbSize" class="cell">{{ cache.dbSize }} </div></td>
                  <td><div class="cell">网络入口/出口</div></td>
                  <td><div v-if="cache.info" class="cell">{{ cache.info.instantaneous_input_kbps }}kps/{{ cache.info.instantaneous_output_kbps }}kps</div></td>
                </tr>
              </tbody>
            </table>
          </div>
        </el-card>
      </el-col>

      <el-col :span="12" class="card-box">
        <el-card>
          <div slot="header"><span>命令统计</span></div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <div ref="commandstats" style="height: 420px" />
          </div>
        </el-card>
      </el-col>

      <el-col :span="12" class="card-box">
        <el-card>
          <div slot="header">
            <span>内存信息</span>
          </div>
          <div class="el-table el-table--enable-row-hover el-table--medium">
            <div ref="usedmemory" style="height: 420px" />
          </div>
        </el-card>
      </el-col>
    </el-row>

    <el-table
      v-loading="keyDefineListLoad"
      :data="keyDefineList"
      row-key="id"
      @row-click="openKeyTemplate"
    >
      <el-table-column prop="keyTemplate" label="Key 模板" width="200" />
      <el-table-column prop="keyType" label="Key 类型" width="100" />
      <el-table-column prop="valueType" label="Value 类型" />
      <el-table-column prop="timeoutType" label="超时时间" width="200">
        <template slot-scope="scope">
          <dict-tag
            :type="DICT_TYPE.INFRA_REDIS_TIMEOUT_TYPE"
            :value="scope.row.timeoutType"
          />
          <span
            v-if="scope.row.timeout > 0"
          >({{ scope.row.timeout / 1000 }} 秒)</span>
        </template>
      </el-table-column>
      <el-table-column prop="memo" label="备注" />
    </el-table>

    <!-- 缓存模块信息框 -->
    <el-dialog
      :title="keyTemplate + ' 模板'"
      :visible.sync="open"
      width="70vw"
      append-to-body
    >
      <el-row :gutter="10">
        <el-col :span="14" class="card-box">
          <el-card style="height: 70vh; overflow: scroll">
            <div slot="header">
              <span>键名列表</span>
              <el-button
                style="float: right; padding: 3px 0"
                type="text"
                icon="el-icon-refresh-right"
                @click="refreshKeys"
              />
            </div>
            <el-table :data="cacheKeys" style="width: 100%" @row-click="handleKeyValue">
              <el-table-column label="缓存键名" align="center" :show-overflow-tooltip="true">
                <template slot-scope="scope">{{ scope.row }}</template>
              </el-table-column>
              <el-table-column
                label="操作"
                width="60"
                align="center"
                class-name="small-padding fixed-width"
              >
                <template slot-scope="scope">
                  <el-button
                    size="mini"
                    type="text"
                    icon="el-icon-delete"
                    @click="handleDeleteKey(scope.row)"
                  />
                </template>
              </el-table-column>
            </el-table>
          </el-card>
        </el-col>

        <el-col :span="10">
          <el-card :bordered="false" style="height: 70vh">
            <div slot="header">
              <span>缓存内容</span>
              <el-button
                style="float: right; padding: 3px 0"
                type="text"
                icon="el-icon-refresh-right"
                @click="handleDeleteKeys(keyTemplate)"
              >清理全部</el-button>
            </div>
            <el-form :model="cacheForm">
              <el-row :gutter="32">
                <el-col :offset="1" :span="22">
                  <el-form-item label="缓存键名:" prop="key">
                    <el-input v-model="cacheForm.key" :read-only="true" />
                  </el-form-item>
                </el-col>
                <el-col :offset="1" :span="22">
                  <el-form-item label="缓存内容:" prop="value">
                    <el-input
                      v-model="cacheForm.value"
                      type="textarea"
                      :rows="12"
                      :read-only="true"
                    />
                  </el-form-item>
                </el-col>
              </el-row>
            </el-form>
          </el-card>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script>
import { getCache, getKeyDefineList, getKeyList, getKeyValue, deleteKey, deleteKeys } from '@/api/infra/redis'
import echarts from 'echarts'

export default {
  name: 'InfraRedis',
  data() {
    return {
      // 统计命令信息
      commandstats: null,
      // 使用内存
      usedmemory: null,
      // cache 信息
      cache: [],
      // key 列表
      keyDefineListLoad: true,
      keyDefineList: [],
      // 模块弹出框
      open: false,
      keyTemplate: '',
      cacheKeys: [],
      cacheForm: {}
    }
  },
  created() {
    this.getList()
    this.openLoading()
  },
  methods: {
    /** 查缓存询信息 */
    getList() {
      // 查询 Redis 监控信息
      getCache().then((response) => {
        this.cache = response.data
        this.$modal.closeLoading()

        this.commandstats = echarts.init(this.$refs.commandstats, 'macarons')
        const commandStats = []
        response.data.commandStats.forEach(row => {
          commandStats.push({
            name: row.command,
            value: row.calls
          })
        })
        this.commandstats.setOption({
          tooltip: {
            trigger: 'item',
            formatter: '{a} <br/>{b} : {c} ({d}%)'
          },
          series: [
            {
              name: '命令',
              type: 'pie',
              roseType: 'radius',
              radius: [15, 95],
              center: ['50%', '38%'],
              data: commandStats,
              animationEasing: 'cubicInOut',
              animationDuration: 1000
            }
          ]
        })
        this.usedmemory = echarts.init(this.$refs.usedmemory, 'macarons')
        this.usedmemory.setOption({
          tooltip: {
            formatter: '{b} <br/>{a} : ' + this.cache.info.used_memory_human
          },
          series: [
            {
              name: '峰值',
              type: 'gauge',
              min: 0,
              max: 1000,
              detail: {
                formatter: this.cache.info.used_memory_human
              },
              data: [
                {
                  value: parseFloat(this.cache.info.used_memory_human),
                  name: '内存消耗'
                }
              ]
            }
          ]
        })
      })

      // 查询 Redis Key 列表
      getKeyDefineList().then(response => {
        this.keyDefineList = response.data
        this.keyDefineListLoad = false
      })
    },

    // 打开加载层
    openLoading() {
      this.$modal.loading('正在加载缓存监控数据，请稍后！')
    },

    // 打开缓存弹窗
    openKeyTemplate(keyDefine) {
      this.open = true
      // 加载键名列表
      this.keyTemplate = keyDefine.keyTemplate
      this.doGetKeyList(this.keyTemplate)
    },

    // 获取键名列表
    doGetKeyList(keyTemplate) {
      getKeyList(keyTemplate).then(response => {
        this.cacheKeys = response.data
        this.cacheForm = {}
      })
    },

    // 获取缓存值
    handleKeyValue(key) {
      getKeyValue(key).then(response => {
        this.cacheForm = response.data
      })
    },

    // 刷新键名列表
    refreshKeys() {
      this.$modal.msgSuccess('刷新键名列表成功')
      this.doGetKeyList(this.keyTemplate)
    },

    // 删除缓存
    handleDeleteKey(key) {
      deleteKey(key).then(response => {
        this.$modal.msgSuccess('清理缓存键名[' + key + ']成功')
        this.doGetKeyList(this.keyTemplate)
      })
    },
    handleDeleteKeys(keyTemplate) {
      deleteKeys(keyTemplate).then(response => {
        this.$modal.msgSuccess('清空[' + keyTemplate + ']成功')
        this.doGetKeyList(this.keyTemplate)
      })
    }
  }
}
</script>
