elliptical-datetime/lib-es/duration.js

Elliptical phrases to handle natural language dates and times

/** @jsx createElement */
import _ from 'lodash';
import { createElement } from 'elliptical';
import { Integer } from 'elliptical-number';

function isUnique(array) {
  return _.uniq(array).length === array.length;
}

function filterBase(option) {
  return isUnique(_.map(option.result, 'id'));
}

var BaseDuration = {
  mapResult: function mapResult(result) {
    var newResult = {};
    _.forEach(result, function (_ref) {
      var num = _ref.num,
          type = _ref.type;

      newResult[type] = (newResult[type] || 0) + num;
    });
    return newResult;
  },
  describe: function describe(_ref2) {
    var props = _ref2.props,
        children = _ref2.children;

    return createElement(
      'placeholder',
      {
        label: props.label,
        arguments: props.phraseArguments || (props.phraseArguments ? [props.phraseArgument] : [props.label]) },
      createElement(
        'filter',
        { outbound: filterBase, skipIncomplete: true },
        createElement(
          'repeat',
          { separator: createElement('list', { items: [', ', ' and ', ', and '], limit: 1 }) },
          children
        )
      )
    );
  }
};

var InternalDuration = {
  mapResult: function mapResult(result) {
    return {
      id: result.id,
      type: result.type,
      num: result.num * (result.multiplier || 1)
    };
  },
  describe: function describe(_ref3) {
    var props = _ref3.props;

    var singularDurations = (props.type !== 'time' ? [{ text: 'day', value: { id: 'days', type: 'days' } }, { text: 'fortnight', value: { id: 'fortnights', type: 'days', multiplier: 14 } }, { text: 'week', value: { id: 'weeks', type: 'days', multiplier: 7 } }, { text: 'month', value: { id: 'months', type: 'months' } }, { text: 'year', value: { id: 'years', type: 'years' } }] : []).concat(props.type !== 'date' ? [{ text: 'hour', value: { id: 'hours', type: 'hours' } }, { text: 'minute', value: { id: 'minutes', type: 'minutes' } }] : []).concat(props.type !== 'date' && props.seconds ? [{ text: 'second', value: { id: 'seconds', type: 'seconds' } }] : []);

    var pluralDurations = _.map(singularDurations, function (_ref4) {
      var text = _ref4.text,
          value = _ref4.value;
      return {
        text: text + 's',
        value: value
      };
    });

    return createElement(
      'choice',
      { limit: 1 },
      createElement(
        'sequence',
        null,
        createElement(Integer, { allowWordForm: true, allowIndefiniteArticles: true, max: 1, min: 1, id: 'num', limit: 1 }),
        createElement('literal', { text: ' ' }),
        createElement(
          'placeholder',
          { label: 'time period', merge: true },
          createElement('list', { items: singularDurations })
        )
      ),
      createElement(
        'sequence',
        null,
        createElement(Integer, { allowWordForm: true, allowIndefiniteArticles: true, id: 'num', min: 2, limit: 1 }),
        createElement('literal', { text: ' ' }),
        createElement(
          'placeholder',
          { label: 'time period', merge: true },
          createElement('list', { items: pluralDurations })
        )
      )
    );
  }
};

export var DateDuration = {
  id: 'elliptical-datetime:DateDuration',

  defaultProps: {
    label: 'date duration'
  },
  describe: function describe(_ref5) {
    var props = _ref5.props;

    return createElement(
      BaseDuration,
      {
        label: props.label,
        phraseArguments: props.phraseArguments,
        phraseArgument: props.phraseArgument },
      createElement(InternalDuration, { type: 'date', seconds: props.seconds })
    );
  }
};

export var TimeDuration = {
  id: 'elliptical-datetime:TimeDuration',

  defaultProps: {
    seconds: true,
    label: 'time duration'
  },

  describe: function describe(_ref6) {
    var props = _ref6.props;

    return createElement(
      BaseDuration,
      {
        label: props.label,
        phraseArguments: props.phraseArguments,
        phraseArgument: props.phraseArgument },
      createElement(InternalDuration, { type: 'time', seconds: props.seconds })
    );
  }
};

export var Duration = {
  id: 'elliptical-datetime:Duration',

  defaultProps: {
    seconds: false,
    label: 'duration'
  },
  describe: function describe(_ref7) {
    var props = _ref7.props;

    return createElement(
      BaseDuration,
      {
        label: props.label,
        phraseArguments: props.phraseArguments,
        phraseArgument: props.phraseArgument },
      createElement(InternalDuration, { seconds: props.seconds })
    );
  }
};