<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
        <el-select clearable v-model="cycle01">
          <el-option
            v-for="(item, index) of weekList"
            :key="index"
            :label="item.value"
            :value="item.key"
            :disabled="item.key === 7"
            >{{ item.value }}</el-option
          >
        </el-select>
        -
        <el-select clearable v-model="cycle02">
          <el-option
            v-for="(item, index) of weekList"
            :key="index"
            :label="item.value"
            :value="item.key"
            :disabled="item.key <= cycle01"
            >{{ 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" :min="1" :max="4" /> 周的
        <el-select clearable v-model="average02">
          <el-option
            v-for="item in weekList"
            :key="item.key"
            :label="item.value"
            :value="item.key"
          />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="5">
        本月最后一个
        <el-select clearable v-model="weekday">
          <el-option
            v-for="item in weekList"
            :key="item.key"
            :label="item.value"
            :value="item.key"
          />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :label="6">
        指定
        <el-select
          class="multiselect"
          clearable
          v-model="checkboxList"
          placeholder="可多选"
          multiple
          :multiple-limit="6"
        >
          <el-option
            v-for="item in weekList"
            :key="item.key"
            :label="item.value"
            :value="item.key"
          />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>

<script setup>
const emit = defineEmits(["update"]);
const props = defineProps({
  cron: {
    type: Object,
    default: {
      // second: "*",
      // min: "*",
      hour: "*",
      day: "*",
      month: "*",
      week: "?",
      year: "",
    },
  },
  check: {
    type: Function,
    default: () => {},
  },
});
const radioValue = ref(2);
const cycle01 = ref(2);
const cycle02 = ref(3);
const average01 = ref(1);
const average02 = ref(2);
const weekday = ref(2);
const checkboxList = ref([]);
const checkCopy = ref([2]);
const weekList = ref([
  { key: 1, value: "星期日" },
  { 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" },
]);
const cycleTotal = computed(() => {
  cycle01.value = props.check(cycle01.value, 1, 6);
  cycle02.value = props.check(cycle02.value, cycle01.value + 1, 7);
  return cycle01.value + "-" + cycle02.value;
});
const averageTotal = computed(() => {
  average01.value = props.check(average01.value, 1, 4);
  average02.value = props.check(average02.value, 1, 7);
  return average02.value + "#" + average01.value;
});
const weekdayTotal = computed(() => {
  weekday.value = props.check(weekday.value, 1, 7);
  return weekday.value + "L";
});
const checkboxString = computed(() => {
  return checkboxList.value.join(",");
});
watch(
  () => props.cron.week,
  (value) => changeRadioValue(value)
);
watch(
  [radioValue, cycleTotal, averageTotal, weekdayTotal, checkboxString],
  () => onRadioChange()
);
function changeRadioValue(value) {
  if (value === "*") {
    radioValue.value = 1;
  } else if (value === "?") {
    radioValue.value = 2;
  } else if (value.indexOf("-") > -1) {
    const indexArr = value.split("-");
    cycle01.value = Number(indexArr[0]);
    cycle02.value = Number(indexArr[1]);
    radioValue.value = 3;
  } else if (value.indexOf("#") > -1) {
    const indexArr = value.split("#");
    average01.value = Number(indexArr[1]);
    average02.value = Number(indexArr[0]);
    radioValue.value = 4;
  } else if (value.indexOf("L") > -1) {
    const indexArr = value.split("L");
    weekday.value = Number(indexArr[0]);
    radioValue.value = 5;
  } else {
    checkboxList.value = [
      ...new Set(value.split(",").map((item) => Number(item))),
    ];
    radioValue.value = 6;
  }
}
function onRadioChange() {
  if (radioValue.value === 2 && props.cron.day === "?") {
    emit("update", "day", "*", "week");
  }
  if (radioValue.value !== 2 && props.cron.day !== "?") {
    emit("update", "day", "?", "week");
  }
  switch (radioValue.value) {
    case 1:
      emit("update", "week", "*", "week");
      break;
    case 2:
      emit("update", "week", "?", "week");
      break;
    case 3:
      emit("update", "week", cycleTotal.value, "week");
      break;
    case 4:
      emit("update", "week", averageTotal.value, "week");
      break;
    case 5:
      emit("update", "week", weekdayTotal.value, "week");
      break;
    case 6:
      if (checkboxList.value.length === 0) {
        checkboxList.value.push(checkCopy.value[0]);
      } else {
        checkCopy.value = checkboxList.value;
      }
      emit("update", "week", checkboxString.value, "week");
      break;
  }
}
</script>

<style lang="scss" scoped>
.el-input-number--small,
.el-select,
.el-select--small {
  margin: 0 0.5rem;
}
.el-select,
.el-select--small {
  width: 8rem;
}
.el-select.multiselect,
.el-select--small.multiselect {
  width: 17.8rem;
}
</style>