openmct/src/api/forms/components/controls/Datetime.vue

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<template>
  <div class="c-form-control--datetime">
    <div class="hint date">Date</div>
    <div class="hint time sm">Hour</div>
    <div class="hint time sm">Min</div>
    <div class="hint time sm">Sec</div>
    <div class="hint timezone">Timezone</div>
    <form ref="dateTimeForm" prevent class="u-contents">
      <input
        v-model="date"
        class="field control date"
        :pattern="/\d{4}-\d{2}-\d{2}/"
        :placeholder="format"
        type="date"
        name="date"
        @change="onChange"
      />
      <input
        v-model="hour"
        class="field control hour c-input--sm"
        :pattern="/\d+/"
        type="number"
        name="hour"
        maxlength="10"
        min="0"
        max="23"
        @change="onChange"
      />
      <input
        v-model="min"
        class="field control min c-input--sm"
        :pattern="/\d+/"
        type="number"
        name="min"
        maxlength="2"
        min="0"
        max="59"
        @change="onChange"
      />
      <input
        v-model="sec"
        class="field control sec c-input--sm"
        :pattern="/\d+/"
        type="number"
        name="sec"
        maxlength="2"
        min="0"
        max="59"
        @change="onChange"
      />
      <div class="field control hint timezone">UTC</div>
    </form>
  </div>
</template>

<script>
const DATE_FORMAT = 'YYYY-MM-DD';

export default {
  props: {
    model: {
      type: Object,
      required: true
    }
  },
  data() {
    return {
      format: DATE_FORMAT,
      date: '',
      hour: 0,
      min: 0,
      sec: 0
    };
  },
  mounted() {
    this.formatDatetime();
  },
  methods: {
    convertToDatetime(timestamp) {
      const dateValue = new Date(timestamp);
      const date = dateValue.toISOString().slice(0, 10);
      const hour = dateValue.getUTCHours() || 0;
      const min = dateValue.getUTCMinutes() || 0;
      const sec = dateValue.getUTCSeconds() || 0;

      return {
        date,
        hour,
        min,
        sec
      };
    },
    convertToTimestamp() {
      const date = new Date(this.date);
      date.setUTCHours(this.hour || 0);
      date.setUTCMinutes(this.min || 0);
      date.setUTCSeconds(this.sec || 0);

      return date.getTime();
    },
    formatDatetime(timestamp = this.model.value) {
      if (!timestamp) {
        this.resetValues();

        return;
      }

      const datetime = this.convertToDatetime(timestamp);
      this.setDatetime(datetime.date, datetime.hour, datetime.min, datetime.sec);
    },
    onChange() {
      const timestamp = this.convertToTimestamp();
      const model = this.model;
      model.validate = () => this.validate(timestamp);

      const data = {
        model,
        value: timestamp
      };

      this.$emit('onChange', data);
    },
    resetValues() {
      this.setDatetime();
    },
    setDatetime(date = '', hour = 0, min = 0, sec = 0) {
      this.date = date.toString();
      this.hour = hour;
      this.min = min;
      this.sec = sec;
    },
    validate(timestamp) {
      const valid = timestamp > 0 && this.$refs.dateTimeForm.checkValidity();
      if (!valid) {
        this.$refs.dateTimeForm.reportValidity();
      }

      return valid;
    }
  }
};
</script>