setup-python/node_modules/prompts/dist/elements/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'),
      cursor = _require.cursor;

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

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 {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.fallback = opts.fallback || (opts.initial !== undefined ? `${figures.pointerSmall} ${getTitle(this.choices, this.initial)}` : `${figures.pointerSmall} ${opts.noMatches || 'no matches found'}`);
    this.suggestions = [[]];
    this.page = 0;
    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.complete(this.render);
    this.render();
  }

  moveSelect(i) {
    this.select = i;

    if (this.suggestions[this.page].length > 0) {
      this.value = getVal(this.suggestions[this.page], i);
    } else {
      this.value = this.initial !== undefined ? getVal(this.choices, this.initial) : null;
    }

    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)
      })).reduce((arr, sug) => {
        if (arr[arr.length - 1].length < _this.limit) arr[arr.length - 1].push(sug);else arr.push([sug]);
        return arr;
      }, [[]]);
      _this.isFallback = false;
      _this.completing = false;
      if (!_this.suggestions[_this.page]) _this.page = 0;

      if (!_this.suggestions.length && _this.fallback) {
        const index = getIndex(_this.choices, _this.fallback);
        _this.suggestions = [[]];
        if (index !== undefined) _this.suggestions[0].push({
          title: getTitle(_this.choices, index),
          value: getVal(_this.choices, index)
        });
        _this.isFallback = true;
      }

      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();
  }

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

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

  _(c, key) {
    // TODO on ctrl+# go to page #
    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[this.page].length - 1);
    this.render();
  }

  up() {
    if (this.select <= 0) return this.bell();
    this.moveSelect(this.select - 1);
    this.render();
  }

  down() {
    if (this.select >= this.suggestions[this.page].length - 1) return this.bell();
    this.moveSelect(this.select + 1);
    this.render();
  }

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

    this.render();
  }

  nextPage() {
    if (this.page >= this.suggestions.length - 1) return this.bell();
    this.page++;
    this.moveSelect(0);
    this.render();
  }

  prevPage() {
    if (this.page <= 0) return this.bell();
    this.page--;
    this.moveSelect(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();
  }

  render() {
    if (this.closed) return;
    super.render();
    if (this.lineCount) this.out.write(cursor.down(this.lineCount));
    let prompt = color.bold(`${style.symbol(this.done, this.aborted)} ${this.msg} `) + `${style.delimiter(this.completing)} `;
    let length = strip(prompt).length;

    if (this.done && this.suggestions[this.page][this.select]) {
      prompt += `${this.suggestions[this.page][this.select].title}`;
    } else {
      this.rendered = `${this.transform.render(this.input)}`;
      length += this.rendered.length;
      prompt += this.rendered;
    }

    if (!this.done) {
      this.lineCount = this.suggestions[this.page].length;
      let suggestions = this.suggestions[this.page].reduce((acc, item, i) => acc + `\n${i === this.select ? color.cyan(item.title) : item.title}`, '');

      if (suggestions && !this.isFallback) {
        prompt += suggestions;

        if (this.suggestions.length > 1) {
          this.lineCount++;
          prompt += color.blue(`\nPage ${this.page + 1}/${this.suggestions.length}`);
        }
      } else {
        const fallbackIndex = getIndex(this.choices, this.fallback);
        const fallbackTitle = fallbackIndex !== undefined ? getTitle(this.choices, fallbackIndex) : this.fallback;
        prompt += `\n${color.gray(fallbackTitle)}`;
        this.lineCount++;
      }
    }

    this.out.write(this.clear + prompt);
    this.clear = clear(prompt);

    if (this.lineCount && !this.done) {
      let pos = cursor.up(this.lineCount);
      pos += cursor.left + cursor.to(length);
      pos += cursor.move(-this.rendered.length + this.cursor * this.scale);
      this.out.write(pos);
    }
  }

}

module.exports = AutocompletePrompt;