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File Content: `autocomplete.js`

'use strict';

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

const color = require('kleur');

const Prompt = require('./prompt');

const _require = require('sisteransi'),
      erase = _require.erase,
      cursor = _require.cursor;

const _require2 = require('../util'),
      style = _require2.style,
      clear = _require2.clear,
      figures = _require2.figures,
      wrap = _require2.wrap,
      entriesToDisplay = _require2.entriesToDisplay;

const getVal = (arr, i) => arr[i] && (arr[i].value || arr[i].title || arr[i]);

const getTitle = (arr, i) => arr[i] && (arr[i].title || arr[i].value || arr[i]);

const getIndex = (arr, valOrTitle) => {
  const index = arr.findIndex(el => el.value === valOrTitle || el.title === valOrTitle);
  return index > -1 ? index : undefined;
};
/**
 * TextPrompt Base Element
 * @param {Object} opts Options
 * @param {String} opts.message Message
 * @param {Array} opts.choices Array of auto-complete choices objects
 * @param {Function} [opts.suggest] Filter function. Defaults to sort by title
 * @param {Number} [opts.limit=10] Max number of results to show
 * @param {Number} [opts.cursor=0] Cursor start position
 * @param {String} [opts.style='default'] Render style
 * @param {String} [opts.fallback] Fallback message - initial to default value
 * @param {String} [opts.initial] Index of the default value
 * @param {Boolean} [opts.clearFirst] The first ESCAPE keypress will clear the input
 * @param {Stream} [opts.stdin] The Readable stream to listen to
 * @param {Stream} [opts.stdout] The Writable stream to write readline data to
 * @param {String} [opts.noMatches] The no matches found label
 */


class AutocompletePrompt extends Prompt {
  constructor(opts = {}) {
    super(opts);
    this.msg = opts.message;
    this.suggest = opts.suggest;
    this.choices = opts.choices;
    this.initial = typeof opts.initial === 'number' ? opts.initial : getIndex(opts.choices, opts.initial);
    this.select = this.initial || opts.cursor || 0;
    this.i18n = {
      noMatches: opts.noMatches || 'no matches found'
    };
    this.fallback = opts.fallback || this.initial;
    this.clearFirst = opts.clearFirst || false;
    this.suggestions = [];
    this.input = '';
    this.limit = opts.limit || 10;
    this.cursor = 0;
    this.transform = style.render(opts.style);
    this.scale = this.transform.scale;
    this.render = this.render.bind(this);
    this.complete = this.complete.bind(this);
    this.clear = clear('', this.out.columns);
    this.complete(this.render);
    this.render();
  }

  set fallback(fb) {
    this._fb = Number.isSafeInteger(parseInt(fb)) ? parseInt(fb) : fb;
  }

  get fallback() {
    let choice;
    if (typeof this._fb === 'number') choice = this.choices[this._fb];else if (typeof this._fb === 'string') choice = {
      title: this._fb
    };
    return choice || this._fb || {
      title: this.i18n.noMatches
    };
  }

  moveSelect(i) {
    this.select = i;
    if (this.suggestions.length > 0) this.value = getVal(this.suggestions, i);else this.value = this.fallback.value;
    this.fire();
  }

  complete(cb) {
    var _this = this;

    return _asyncToGenerator(function* () {
      const p = _this.completing = _this.suggest(_this.input, _this.choices);

      const suggestions = yield p;
      if (_this.completing !== p) return;
      _this.suggestions = suggestions.map((s, i, arr) => ({
        title: getTitle(arr, i),
        value: getVal(arr, i),
        description: s.description
      }));
      _this.completing = false;
      const l = Math.max(suggestions.length - 1, 0);

      _this.moveSelect(Math.min(l, _this.select));

      cb && cb();
    })();
  }

  reset() {
    this.input = '';
    this.complete(() => {
      this.moveSelect(this.initial !== void 0 ? this.initial : 0);
      this.render();
    });
    this.render();
  }

  exit() {
    if (this.clearFirst && this.input.length > 0) {
      this.reset();
    } else {
      this.done = this.exited = true;
      this.aborted = false;
      this.fire();
      this.render();
      this.out.write('\n');
      this.close();
    }
  }

  abort() {
    this.done = this.aborted = true;
    this.exited = false;
    this.fire();
    this.render();
    this.out.write('\n');
    this.close();
  }

  submit() {
    this.done = true;
    this.aborted = this.exited = false;
    this.fire();
    this.render();
    this.out.write('\n');
    this.close();
  }

  _(c, key) {
    let s1 = this.input.slice(0, this.cursor);
    let s2 = this.input.slice(this.cursor);
    this.input = `${s1}${c}${s2}`;
    this.cursor = s1.length + 1;
    this.complete(this.render);
    this.render();
  }

  delete() {
    if (this.cursor === 0) return this.bell();
    let s1 = this.input.slice(0, this.cursor - 1);
    let s2 = this.input.slice(this.cursor);
    this.input = `${s1}${s2}`;
    this.complete(this.render);
    this.cursor = this.cursor - 1;
    this.render();
  }

  deleteForward() {
    if (this.cursor * this.scale >= this.rendered.length) return this.bell();
    let s1 = this.input.slice(0, this.cursor);
    let s2 = this.input.slice(this.cursor + 1);
    this.input = `${s1}${s2}`;
    this.complete(this.render);
    this.render();
  }

  first() {
    this.moveSelect(0);
    this.render();
  }

  last() {
    this.moveSelect(this.suggestions.length - 1);
    this.render();
  }

  up() {
    if (this.select === 0) {
      this.moveSelect(this.suggestions.length - 1);
    } else {
      this.moveSelect(this.select - 1);
    }

    this.render();
  }

  down() {
    if (this.select === this.suggestions.length - 1) {
      this.moveSelect(0);
    } else {
      this.moveSelect(this.select + 1);
    }

    this.render();
  }

  next() {
    if (this.select === this.suggestions.length - 1) {
      this.moveSelect(0);
    } else this.moveSelect(this.select + 1);

    this.render();
  }

  nextPage() {
    this.moveSelect(Math.min(this.select + this.limit, this.suggestions.length - 1));
    this.render();
  }

  prevPage() {
    this.moveSelect(Math.max(this.select - this.limit, 0));
    this.render();
  }

  left() {
    if (this.cursor <= 0) return this.bell();
    this.cursor = this.cursor - 1;
    this.render();
  }

  right() {
    if (this.cursor * this.scale >= this.rendered.length) return this.bell();
    this.cursor = this.cursor + 1;
    this.render();
  }

  renderOption(v, hovered, isStart, isEnd) {
    let desc;
    let prefix = isStart ? figures.arrowUp : isEnd ? figures.arrowDown : ' ';
    let title = hovered ? color.cyan().underline(v.title) : v.title;
    prefix = (hovered ? color.cyan(figures.pointer) + ' ' : '  ') + prefix;

    if (v.description) {
      desc = ` - ${v.description}`;

      if (prefix.length + title.length + desc.length >= this.out.columns || v.description.split(/\r?\n/).length > 1) {
        desc = '\n' + wrap(v.description, {
          margin: 3,
          width: this.out.columns
        });
      }
    }

    return prefix + ' ' + title + color.gray(desc || '');
  }

  render() {
    if (this.closed) return;
    if (this.firstRender) this.out.write(cursor.hide);else this.out.write(clear(this.outputText, this.out.columns));
    super.render();

    let _entriesToDisplay = entriesToDisplay(this.select, this.choices.length, this.limit),
        startIndex = _entriesToDisplay.startIndex,
        endIndex = _entriesToDisplay.endIndex;

    this.outputText = [style.symbol(this.done, this.aborted, this.exited), color.bold(this.msg), style.delimiter(this.completing), this.done && this.suggestions[this.select] ? this.suggestions[this.select].title : this.rendered = this.transform.render(this.input)].join(' ');

    if (!this.done) {
      const suggestions = this.suggestions.slice(startIndex, endIndex).map((item, i) => this.renderOption(item, this.select === i + startIndex, i === 0 && startIndex > 0, i + startIndex === endIndex - 1 && endIndex < this.choices.length)).join('\n');
      this.outputText += `\n` + (suggestions || color.gray(this.fallback.title));
    }

    this.out.write(erase.line + cursor.to(0) + this.outputText);
  }

}

module.exports = AutocompletePrompt;
Name	Size	Permission
autocomplete.js	8747 bytes	0644
autocompleteMultiselect.js	5335 bytes	0644
confirm.js	2425 bytes	0644
date.js	6866 bytes	0644
index.js	418 bytes	0644
multiselect.js	7447 bytes	0644
number.js	6675 bytes	0644
prompt.js	1937 bytes	0644
select.js	5114 bytes	0644
text.js	6385 bytes	0644
toggle.js	2677 bytes	0644
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File Content: autocomplete.js

File Content: `autocomplete.js`
