File size: 4,453 Bytes
bc20498 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 |
'use strict';
const ArrayPrompt = require('../types/array');
class Survey extends ArrayPrompt {
constructor(options = {}) {
super(options);
this.emptyError = options.emptyError || 'No items were selected';
this.term = process.env.TERM_PROGRAM;
if (!this.options.header) {
let header = ['', '4 - Strongly Agree', '3 - Agree', '2 - Neutral', '1 - Disagree', '0 - Strongly Disagree', ''];
header = header.map(ele => this.styles.muted(ele));
this.state.header = header.join('\n ');
}
}
async toChoices(...args) {
if (this.createdScales) return false;
this.createdScales = true;
let choices = await super.toChoices(...args);
for (let choice of choices) {
choice.scale = createScale(5, this.options);
choice.scaleIdx = 2;
}
return choices;
}
dispatch() {
this.alert();
}
space() {
let choice = this.focused;
let ele = choice.scale[choice.scaleIdx];
let selected = ele.selected;
choice.scale.forEach(e => (e.selected = false));
ele.selected = !selected;
return this.render();
}
indicator() {
return '';
}
pointer() {
return '';
}
separator() {
return this.styles.muted(this.symbols.ellipsis);
}
right() {
let choice = this.focused;
if (choice.scaleIdx >= choice.scale.length - 1) return this.alert();
choice.scaleIdx++;
return this.render();
}
left() {
let choice = this.focused;
if (choice.scaleIdx <= 0) return this.alert();
choice.scaleIdx--;
return this.render();
}
indent() {
return ' ';
}
async renderChoice(item, i) {
await this.onChoice(item, i);
let focused = this.index === i;
let isHyper = this.term === 'Hyper';
let n = !isHyper ? 8 : 9;
let s = !isHyper ? ' ' : '';
let ln = this.symbols.line.repeat(n);
let sp = ' '.repeat(n + (isHyper ? 0 : 1));
let dot = enabled => (enabled ? this.styles.success('◉') : '◯') + s;
let num = i + 1 + '.';
let color = focused ? this.styles.heading : this.styles.noop;
let msg = await this.resolve(item.message, this.state, item, i);
let indent = this.indent(item);
let scale = indent + item.scale.map((e, i) => dot(i === item.scaleIdx)).join(ln);
let val = i => i === item.scaleIdx ? color(i) : i;
let next = indent + item.scale.map((e, i) => val(i)).join(sp);
let line = () => [num, msg].filter(Boolean).join(' ');
let lines = () => [line(), scale, next, ' '].filter(Boolean).join('\n');
if (focused) {
scale = this.styles.cyan(scale);
next = this.styles.cyan(next);
}
return lines();
}
async renderChoices() {
if (this.state.submitted) return '';
let choices = this.visible.map(async(ch, i) => await this.renderChoice(ch, i));
let visible = await Promise.all(choices);
if (!visible.length) visible.push(this.styles.danger('No matching choices'));
return visible.join('\n');
}
format() {
if (this.state.submitted) {
let values = this.choices.map(ch => this.styles.info(ch.scaleIdx));
return values.join(', ');
}
return '';
}
async render() {
let { submitted, size } = this.state;
let prefix = await this.prefix();
let separator = await this.separator();
let message = await this.message();
let prompt = [prefix, message, separator].filter(Boolean).join(' ');
this.state.prompt = prompt;
let header = await this.header();
let output = await this.format();
let help = await this.error() || await this.hint();
let body = await this.renderChoices();
let footer = await this.footer();
if (output || !help) prompt += ' ' + output;
if (help && !prompt.includes(help)) prompt += ' ' + help;
if (submitted && !output && !body && this.multiple && this.type !== 'form') {
prompt += this.styles.danger(this.emptyError);
}
this.clear(size);
this.write([prompt, header, body, footer].filter(Boolean).join('\n'));
this.restore();
}
submit() {
this.value = {};
for (let choice of this.choices) {
this.value[choice.name] = choice.scaleIdx;
}
return this.base.submit.call(this);
}
}
function createScale(n, options = {}) {
if (Array.isArray(options.scale)) {
return options.scale.map(ele => ({ ...ele }));
}
let scale = [];
for (let i = 1; i < n + 1; i++) scale.push({ i, selected: false });
return scale;
}
module.exports = Survey;
|