<template>
  <div class="text" :style="styleColor">{{ timestr }}</div>
</template>
<script>
export default {
  name: "WidgetTime",
  components: {},
  props: {
    value: Object,
    ispreview: Boolean
  },
  data() {
    return {
      timestr: "",
      options: {}
    };
  },
  computed: {
    transStyle() {
      // console.log(this.objToOne(this.options));
      return this.objToOne(this.options);
    },
    styleColor() {
      return {
        position: this.ispreview ? "absolute" : "static",
        color: this.transStyle.color || "#fff",
        text: this.transStyle.text || "文本框",
        "font-size": this.transStyle.fontSize + "px" || "30px",
        "letter-spacing": this.transStyle.letterSpacing + "em",
        background: this.transStyle.background,
        "font-weight": this.transStyle.fontWeight,
        "text-align": this.transStyle.textAlign,
        display:
          this.transStyle.hideLayer == undefined
            ? "block"
            : this.transStyle.hideLayer
            ? "none"
            : "block",
        width: this.transStyle.width + "px",
        height: this.transStyle.height + "px",
        left: this.transStyle.left + "px",
        top: this.transStyle.top + "px",
        right: this.transStyle.right + "px"
      };
    }
  },
  watch: {
    value: {
      handler(val) {
        this.options = val;
      },
      deep: true
    }
  },
  mounted() {
    this.options = this.value;
    this.getTime();
  },
  methods: {
    formatFunction(date, fmt) {
      if (/(y+)/.test(fmt)) {
        fmt = fmt.replace(
          RegExp.$1,
          (date.getFullYear() + "").substr(4 - RegExp.$1.length)
        );
      }
      const o = {
        "M+": date.getMonth() + 1, // 月份
        "d+": date.getDate(), // 日
        "h+": date.getHours(), // 小时
        "m+": date.getMinutes(), // 分
        "s+": date.getSeconds(), // 秒
        "q+": Math.floor((date.getMonth() + 3) / 3), // 季度
        S: date.getMilliseconds() // 毫秒
      };
      for (let k in o) {
        if (new RegExp("(" + k + ")").test(fmt)) {
          fmt = fmt.replace(
            RegExp.$1,
            RegExp.$1.length == 1
              ? o[k]
              : ("00" + o[k]).substr(("" + o[k]).length)
          );
        }
      }
      return fmt;
    },
    check(val) {
      if (val < 10) {
        return "0" + val;
      } else {
        return val;
      }
    },
    formatWeek(date, fmt) {
      const year = date.getFullYear();
      const month = this.check(date.getMonth() + 1);
      const day = this.check(date.getDate());
      const hours = this.check(date.getHours());
      const minutes = this.check(date.getMinutes());
      const seconds = this.check(date.getSeconds());
      let dayCycle = date.getDay();
      const dayCycleArray = ["日", "一", "二", "三", "四", "五", "六"];
      for (let i = 0; i < 7; i++) {
        if (dayCycle == i) {
          dayCycle = " 星期" + dayCycleArray[i];
        }
      }
      if (fmt == "year-week") {
        return year + "-" + month + "-" + day + dayCycle;
      } else if (fmt == "year-h-m-week") {
        return (
          year +
          "-" +
          month +
          "-" +
          day +
          " " +
          hours +
          ":" +
          minutes +
          dayCycle
        );
      } else if (fmt == "year-h-m-s-week") {
        return (
          year +
          "-" +
          month +
          "-" +
          day +
          " " +
          hours +
          ":" +
          minutes +
          ":" +
          seconds +
          dayCycle
        );
      } else if (fmt == "week") {
        return dayCycle;
      }
    },
    displayTime() {
      this.timestr =
        this.transStyle.timeFormat.indexOf("week") > -1
          ? this.formatWeek(new Date(), this.transStyle.timeFormat)
          : this.formatFunction(new Date(), this.transStyle.timeFormat);
    },
    getTime() {
      setInterval(() => {
        this.displayTime();
      }, 1000);
    }
  }
};
</script>
<style lang="scss" scoped>
.text {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
</style>
