<template>
  <el-form size='small'>
    <el-form-item>
      <el-radio v-model='radioValue' :label="1">
        周，允许的通配符[, - * /]
      </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" 
          placeholder="星期一" 
          clearable
          multiple 
          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 setup>
import { ref, computed, watch } from 'vue'

// 定义组件名称
defineOptions({
  name: 'crontab-week'
})


// 定义props
const props = defineProps({
  check: {
    type: Function,
    required: true
  },
  cron: {
    type: Object,
    required: true
  }
})

// 定义emits
const emit = defineEmits(['update'])

// 数据定义
const radioValue = ref(2)
const weekday = ref(2)
const cycle01 = ref(2)
const cycle02 = ref(3)
const average01 = ref(1)
const average02 = ref(2)
const checkboxList = ref([])

const weekList = ref([
  {
    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'
  }
])

// 计算属性
// 计算两个周期值
const cycleTotal = computed(() => {
  const cycle01Val = props.check(cycle01.value, 1, 7)
  const cycle02Val = props.check(cycle02.value, 1, 7)
  return cycle01Val + '-' + cycle02Val
})

// 计算平均用到的值
const averageTotal = computed(() => {
  const average01Val = props.check(average01.value, 1, 4)
  const average02Val = props.check(average02.value, 1, 7)
  return average02Val + '#' + average01Val
})

// 最近的工作日（格式）
const weekdayCheck = computed(() => {
  const weekdayVal = props.check(weekday.value, 1, 7)
  return weekdayVal
})

// 计算勾选的checkbox值合集
const checkboxString = computed(() => {
  let str = checkboxList.value.join()
  return str == '' ? '*' : str
})

// 方法定义
// 单选按钮值变化时
const radioChange = () => {
  if (radioValue.value !== 2 && props.cron.day !== '?') {
    emit('update', 'day', '?', 'week')
  }
  switch (radioValue.value) {
    case 1:
      emit('update', 'week', '*')
      break
    case 2:
      emit('update', 'week', '?')
      break
    case 3:
      emit('update', 'week', cycleTotal.value)
      break
    case 4:
      emit('update', 'week', averageTotal.value)
      break
    case 5:
      emit('update', 'week', weekday.value + 'L')
      break
    case 6:
      emit('update', 'week', checkboxString.value)
      break
  }
}

// 周期两个值变化时
const cycleChange = () => {
  if (radioValue.value == '3') {
    emit('update', 'week', cycleTotal.value)
  }
}

// 平均两个值变化时
const averageChange = () => {
  if (radioValue.value == '4') {
    emit('update', 'week', averageTotal.value)
  }
}

// 最近工作日值变化时
const weekdayChange = () => {
  if (radioValue.value == '5') {
    emit('update', 'week', weekday.value + 'L')
  }
}

// checkbox值变化时
const checkboxChange = () => {
  if (radioValue.value == '6') {
    emit('update', 'week', checkboxString.value)
  }
}

// Watchers
watch(radioValue, radioChange)
watch(cycleTotal, cycleChange)
watch(averageTotal, averageChange)
watch(weekdayCheck, weekdayChange)
watch(checkboxString, checkboxChange)
</script>