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date.js
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Thu, Feb 13, 21:56

date.js
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'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('../util'),
style = _require.style,
clear = _require.clear,
figures = _require.figures;
const _require2 = require('sisteransi'),
erase = _require2.erase,
cursor = _require2.cursor;
const _require3 = require('../dateparts'),
DatePart = _require3.DatePart,
Meridiem = _require3.Meridiem,
Day = _require3.Day,
Hours = _require3.Hours,
Milliseconds = _require3.Milliseconds,
Minutes = _require3.Minutes,
Month = _require3.Month,
Seconds = _require3.Seconds,
Year = _require3.Year;
const regex = /\\(.)|"((?:\\["\\]|[^"])+)"|(D[Do]?|d{3,4}|d)|(M{1,4})|(YY(?:YY)?)|([aA])|([Hh]{1,2})|(m{1,2})|(s{1,2})|(S{1,4})|./g;
const regexGroups = {
1: ({
token
}) => token.replace(/\\(.)/g, '$1'),
2: opts => new Day(opts),
// Day // TODO
3: opts => new Month(opts),
// Month
4: opts => new Year(opts),
// Year
5: opts => new Meridiem(opts),
// AM/PM // TODO (special)
6: opts => new Hours(opts),
// Hours
7: opts => new Minutes(opts),
// Minutes
8: opts => new Seconds(opts),
// Seconds
9: opts => new Milliseconds(opts) // Fractional seconds
};
const dfltLocales = {
months: 'January,February,March,April,May,June,July,August,September,October,November,December'.split(','),
monthsShort: 'Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec'.split(','),
weekdays: 'Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday'.split(','),
weekdaysShort: 'Sun,Mon,Tue,Wed,Thu,Fri,Sat'.split(',')
};
/**
* DatePrompt Base Element
* @param {Object} opts Options
* @param {String} opts.message Message
* @param {Number} [opts.initial] Index of default value
* @param {String} [opts.mask] The format mask
* @param {object} [opts.locales] The date locales
* @param {String} [opts.error] The error message shown on invalid value
* @param {Function} [opts.validate] Function to validate the submitted value
* @param {Stream} [opts.stdin] The Readable stream to listen to
* @param {Stream} [opts.stdout] The Writable stream to write readline data to
*/
class DatePrompt extends Prompt {
constructor(opts = {}) {
super(opts);
this.msg = opts.message;
this.cursor = 0;
this.typed = '';
this.locales = Object.assign(dfltLocales, opts.locales);
this._date = opts.initial || new Date();
this.errorMsg = opts.error || 'Please Enter A Valid Value';
this.validator = opts.validate || (() => true);
this.mask = opts.mask || 'YYYY-MM-DD HH:mm:ss';
this.clear = clear('', this.out.columns);
this.render();
}
get value() {
return this.date;
}
get date() {
return this._date;
}
set date(date) {
if (date) this._date.setTime(date.getTime());
}
set mask(mask) {
let result;
this.parts = [];
while (result = regex.exec(mask)) {
let match = result.shift();
let idx = result.findIndex(gr => gr != null);
this.parts.push(idx in regexGroups ? regexGroups[idx]({
token: result[idx] || match,
date: this.date,
parts: this.parts,
locales: this.locales
}) : result[idx] || match);
}
let parts = this.parts.reduce((arr, i) => {
if (typeof i === 'string' && typeof arr[arr.length - 1] === 'string') arr[arr.length - 1] += i;else arr.push(i);
return arr;
}, []);
this.parts.splice(0);
this.parts.push(...parts);
this.reset();
}
moveCursor(n) {
this.typed = '';
this.cursor = n;
this.fire();
}
reset() {
this.moveCursor(this.parts.findIndex(p => p instanceof DatePart));
this.fire();
this.render();
}
exit() {
this.abort();
}
abort() {
this.done = this.aborted = true;
this.error = false;
this.fire();
this.render();
this.out.write('\n');
this.close();
}
validate() {
var _this = this;
return _asyncToGenerator(function* () {
let valid = yield _this.validator(_this.value);
if (typeof valid === 'string') {
_this.errorMsg = valid;
valid = false;
}
_this.error = !valid;
})();
}
submit() {
var _this2 = this;
return _asyncToGenerator(function* () {
yield _this2.validate();
if (_this2.error) {
_this2.color = 'red';
_this2.fire();
_this2.render();
return;
}
_this2.done = true;
_this2.aborted = false;
_this2.fire();
_this2.render();
_this2.out.write('\n');
_this2.close();
})();
}
up() {
this.typed = '';
this.parts[this.cursor].up();
this.render();
}
down() {
this.typed = '';
this.parts[this.cursor].down();
this.render();
}
left() {
let prev = this.parts[this.cursor].prev();
if (prev == null) return this.bell();
this.moveCursor(this.parts.indexOf(prev));
this.render();
}
right() {
let next = this.parts[this.cursor].next();
if (next == null) return this.bell();
this.moveCursor(this.parts.indexOf(next));
this.render();
}
next() {
let next = this.parts[this.cursor].next();
this.moveCursor(next ? this.parts.indexOf(next) : this.parts.findIndex(part => part instanceof DatePart));
this.render();
}
_(c) {
if (/\d/.test(c)) {
this.typed += c;
this.parts[this.cursor].setTo(this.typed);
this.render();
}
}
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(); // Print prompt
this.outputText = [style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(false), this.parts.reduce((arr, p, idx) => arr.concat(idx === this.cursor && !this.done ? color.cyan().underline(p.toString()) : p), []).join('')].join(' '); // Print error
if (this.error) {
this.outputText += this.errorMsg.split('\n').reduce((a, l, i) => a + `\n${i ? ` ` : figures.pointerSmall} ${color.red().italic(l)}`, ``);
}
this.out.write(erase.line + cursor.to(0) + this.outputText);
}
}
module.exports = DatePrompt;

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