text: 'use strict';
  
  const color = require('kleur');
  const Prompt = require('./prompt');
  
  var _require = require('sisteransi');
  
  const cursor = _require.cursor;
  
  var _require2 = require('../util');
  
  const clear = _require2.clear,
        figures = _require2.figures,
        style = _require2.style;
  
  /**
   * MultiselectPrompt Base Element
   * @param {Object} opts Options
   * @param {String} opts.message Message
   * @param {Array} opts.choices Array of choice objects
   * @param {String} [opts.hint] Hint to display
   * @param {Number} [opts.cursor=0] Cursor start position
   * @param {Number} [opts.max] Max choices
   * @param {Stream} [opts.stdin] The Readable stream to listen to
   * @param {Stream} [opts.stdout] The Writable stream to write readline data to
   */
  
  class MultiselectPrompt extends Prompt {
    constructor(opts = {}) {
      super(opts);
      this.msg = opts.message;
      this.cursor = opts.cursor || 0;
      this.hint = opts.hint || '- Space to select. Return to submit';
      this.maxChoices = opts.max;
      this.value = opts.choices.map(v => Object.assign({ title: v.value, selected: false }, v));
      this.clear = clear('');
      this.render(true);
    }
  
    reset() {
      this.value.map(v => !v.selected);
      this.cursor = 0;
      this.fire();
      this.render();
    }
  
    selected() {
      return this.value.filter(v => v.selected);
    }
  
    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();
    }
  
    first() {
      this.cursor = 0;
      this.render();
    }
  
    last() {
      this.cursor = this.value.length - 1;
      this.render();
    }
    next() {
      this.cursor = (this.cursor + 1) % this.value.length;
      this.render();
    }
  
    up() {
      if (this.cursor === 0) return this.bell();
      this.cursor--;
      this.render();
    }
  
    down() {
      if (this.cursor === this.value.length - 1) return this.bell();
      this.cursor++;
      this.render();
    }
  
    left() {
      this.value[this.cursor].selected = false;
      this.render();
    }
  
    right() {
      if (this.value.filter(e => e.selected).length >= this.maxChoices) return this.bell();
      this.value[this.cursor].selected = true;
      this.render();
    }
  
    _(c, key) {
      if (c !== ' ') return this.bell();
      const v = this.value[this.cursor];
  
      if (v.selected) {
        v.selected = false;
        this.render();
      } else if (this.value.filter(e => e.selected).length >= this.maxChoices) {
        return this.bell();
      } else {
        v.selected = true;
        this.render();
      }
    }
  
    render(first) {
      if (first) this.out.write(cursor.hide);
  
      // print prompt
      const selected = this.value.filter(e => e.selected).map(v => v.title).join(', ');
      let prompt = [style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(false), this.done ? selected : color.gray(this.hint)].join(' ');
  
      // print choices
      if (!this.done) {
        const c = this.cursor;
        prompt += '\n' + this.value.map((v, i) => (v.selected ? color.green(figures.tick) : ' ') + ' ' + (c === i ? color.cyan.underline(v.title) : v.title)).join('\n');
      }
  
      this.out.write(this.clear + prompt);
      this.clear = clear(prompt);
    }
  }
  
  module.exports = MultiselectPrompt;