busy-web/ember-date-time

/**
 * @module Core/Handlers
 *
 */
import Base from './base';
import { computed, get, set } from '@ember/object';
import { isNone } from '@ember/utils';
import { on } from '@ember/object/evented';
import { normalizeTime/*, denormalizeTime*/ } from '../utils/time';
import { getMapAttr } from '../utils/map';

export default Base.extend({
    __handler: 'date',

    timestamp: Base.property(),
    unix: Base.property(),
    minDate: Base.property(),
    maxDate: Base.property(),
    utc: Base.property({ defaultValue: false }),

    // unix, timestamp get set to time and
    // minDate, maxDate get set to min, max
    // after the dates have been normalized.
    time: Base.property(),
    min: Base.property(),
    max: Base.property(),

    isUnix: computed('unix', function() {
        return !isNone(get(this, 'unix'));
    }),

    setup: on('setupAttrs', function(attrs) {
        this.updateTimes(attrs);
    }),

    update: on('updateAttrs', function(attrs) {
        if (getMapAttr(attrs, 'timestamp.value') || getMapAttr(attrs, 'unix.value') || getMapAttr(attrs, 'time.value')) {
            this.updateTimes(attrs);
        }
    }),

    updateTimes(attrs) {
        let isUTC = getMapAttr(attrs, 'utc.value') || false;
        let isUnix = getMapAttr(attrs, 'unix.value') ? true : false;

        if (getMapAttr(attrs, 'unix.value')) {
            let date = normalizeTime(getMapAttr(attrs, 'unix.value'), isUnix, isUTC);
            set(this, 'time', date);
        } else if (getMapAttr(attrs, 'timestamp.value')) {
            let date = normalizeTime(getMapAttr(attrs, 'timestamp.value'));
            set(this, 'time', date);
        }

        if (getMapAttr(attrs, 'minDate.value') || getMapAttr(attrs, 'maxDate.value')) {
            set(this, 'min', normalizeTime(getMapAttr(attrs, 'minDate.value')));
            set(this, 'max', normalizeTime(getMapAttr(attrs, 'maxDate.value')));
        }
    }
});