<template>
  <el-form size="small">
    <el-form-item>
      <el-radio v-model="radioValue" :label="1">
        周，允许的通配符[, - * ? / L #]
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="2">
        不指定
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="3">
        周期从星期
        <el-select v-model="cycle01" clearable>
          <el-option
            v-for="(item,index) of weekList"
            :key="index"
            :disabled="item.key === 1"
            :label="item.value"
            :value="item.key"
          >{{ item.value }}
          </el-option>
        </el-select>
        -
        <el-select v-model="cycle02" clearable>
          <el-option
            v-for="(item,index) of weekList"
            :key="index"
            :disabled="item.key < cycle01 && item.key !== 1"
            :label="item.value"
            :value="item.key"
          >{{ item.value }}
          </el-option>
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="4">
        第
        <el-input-number v-model="average01" :max="4" :min="1"/>
        周的星期
        <el-select v-model="average02" clearable>
          <el-option v-for="(item,index) of weekList" :key="index" :label="item.value" :value="item.key">
            {{ item.value }}
          </el-option>
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="5">
        本月最后一个星期
        <el-select v-model="weekday" clearable>
          <el-option v-for="(item,index) of weekList" :key="index" :label="item.value" :value="item.key">
            {{ item.value }}
          </el-option>
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="6">
        指定
        <el-select v-model="checkboxList" clearable multiple placeholder="可多选" style="width:100%">
          <el-option v-for="(item,index) of weekList" :key="index" :label="item.value" :value="String(item.key)">
            {{ item.value }}
          </el-option>
        </el-select>
      </el-radio>
    </el-form-item>

  </el-form>
</template>

<script>
export default {
  data() {
    return {
      radioValue: 2,
      weekday: 2,
      cycle01: 2,
      cycle02: 3,
      average01: 1,
      average02: 2,
      checkboxList: [],
      weekList: [
        {
          key: 2,
          value: '星期一'
        },
        {
          key: 3,
          value: '星期二'
        },
        {
          key: 4,
          value: '星期三'
        },
        {
          key: 5,
          value: '星期四'
        },
        {
          key: 6,
          value: '星期五'
        },
        {
          key: 7,
          value: '星期六'
        },
        {
          key: 1,
          value: '星期日'
        }
      ],
      checkNum: this.$options.propsData.check
    }
  },
  name: 'crontab-week',
  props: ['check', 'cron'],
  methods: {
    // 单选按钮值变化时
    radioChange() {
      if (this.radioValue !== 2 && this.cron.day !== '?') {
        this.$emit('update', 'day', '?', 'week')
      }
      switch (this.radioValue) {
        case 1:
          this.$emit('update', 'week', '*')
          break
        case 2:
          this.$emit('update', 'week', '?')
          break
        case 3:
          this.$emit('update', 'week', this.cycleTotal)
          break
        case 4:
          this.$emit('update', 'week', this.averageTotal)
          break
        case 5:
          this.$emit('update', 'week', this.weekdayCheck + 'L')
          break
        case 6:
          this.$emit('update', 'week', this.checkboxString)
          break
      }
    },

    // 周期两个值变化时
    cycleChange() {
      if (this.radioValue == '3') {
        this.$emit('update', 'week', this.cycleTotal)
      }
    },
    // 平均两个值变化时
    averageChange() {
      if (this.radioValue == '4') {
        this.$emit('update', 'week', this.averageTotal)
      }
    },
    // 最近工作日值变化时
    weekdayChange() {
      if (this.radioValue == '5') {
        this.$emit('update', 'week', this.weekday + 'L')
      }
    },
    // checkbox值变化时
    checkboxChange() {
      if (this.radioValue == '6') {
        this.$emit('update', 'week', this.checkboxString)
      }
    }
  },
  watch: {
    'radioValue': 'radioChange',
    'cycleTotal': 'cycleChange',
    'averageTotal': 'averageChange',
    'weekdayCheck': 'weekdayChange',
    'checkboxString': 'checkboxChange'
  },
  computed: {
    // 计算两个周期值
    cycleTotal: function() {
      this.cycle01 = this.checkNum(this.cycle01, 1, 7)
      this.cycle02 = this.checkNum(this.cycle02, 1, 7)
      return this.cycle01 + '-' + this.cycle02
    },
    // 计算平均用到的值
    averageTotal: function() {
      this.average01 = this.checkNum(this.average01, 1, 4)
      this.average02 = this.checkNum(this.average02, 1, 7)
      return this.average02 + '#' + this.average01
    },
    // 最近的工作日（格式）
    weekdayCheck: function() {
      this.weekday = this.checkNum(this.weekday, 1, 7)
      return this.weekday
    },
    // 计算勾选的checkbox值合集
    checkboxString: function() {
      let str = this.checkboxList.join()
      return str == '' ? '*' : str
    }
  }
}
</script>
