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import { configFromStringAndFormat } from './from-string-and-format';
import { createUTCDate } from './date-from-array';
import { configFromArray } from './from-array';
import { hooks } from '../utils/hooks';
import { deprecate } from '../utils/deprecate';
import getParsingFlags from './parsing-flags';
import {defaultLocaleMonthsShort} from '../units/month';
import {defaultLocaleWeekdaysShort} from '../units/day-of-week';
// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;
var isoDates = [
['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
['GGGG-[W]WW', /\d{4}-W\d\d/, false],
['YYYY-DDD', /\d{4}-\d{3}/],
['YYYY-MM', /\d{4}-\d\d/, false],
['YYYYYYMMDD', /[+-]\d{10}/],
['YYYYMMDD', /\d{8}/],
// YYYYMM is NOT allowed by the standard
['GGGG[W]WWE', /\d{4}W\d{3}/],
['GGGG[W]WW', /\d{4}W\d{2}/, false],
['YYYYDDD', /\d{7}/]
];
// iso time formats and regexes
var isoTimes = [
['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
['HH:mm:ss', /\d\d:\d\d:\d\d/],
['HH:mm', /\d\d:\d\d/],
['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
['HHmmss', /\d\d\d\d\d\d/],
['HHmm', /\d\d\d\d/],
['HH', /\d\d/]
];
var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;
// date from iso format
export function configFromISO(config) {
var i, l,
string = config._i,
match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
allowTime, dateFormat, timeFormat, tzFormat;
if (match) {
getParsingFlags(config).iso = true;
for (i = 0, l = isoDates.length; i < l; i++) {
if (isoDates[i][1].exec(match[1])) {
dateFormat = isoDates[i][0];
allowTime = isoDates[i][2] !== false;
break;
}
}
if (dateFormat == null) {
config._isValid = false;
return;
}
if (match[3]) {
for (i = 0, l = isoTimes.length; i < l; i++) {
if (isoTimes[i][1].exec(match[3])) {
// match[2] should be 'T' or space
timeFormat = (match[2] || ' ') + isoTimes[i][0];
break;
}
}
if (timeFormat == null) {
config._isValid = false;
return;
}
}
if (!allowTime && timeFormat != null) {
config._isValid = false;
return;
}
if (match[4]) {
if (tzRegex.exec(match[4])) {
tzFormat = 'Z';
} else {
config._isValid = false;
return;
}
}
config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
configFromStringAndFormat(config);
} else {
config._isValid = false;
}
}
// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;
function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
var result = [
untruncateYear(yearStr),
defaultLocaleMonthsShort.indexOf(monthStr),
parseInt(dayStr, 10),
parseInt(hourStr, 10),
parseInt(minuteStr, 10)
];
if (secondStr) {
result.push(parseInt(secondStr, 10));
}
return result;
}
function untruncateYear(yearStr) {
var year = parseInt(yearStr, 10);
if (year <= 49) {
return 2000 + year;
} else if (year <= 999) {
return 1900 + year;
}
return year;
}
function preprocessRFC2822(s) {
// Remove comments and folding whitespace and replace multiple-spaces with a single space
return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
}
function checkWeekday(weekdayStr, parsedInput, config) {
if (weekdayStr) {
// TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
if (weekdayProvided !== weekdayActual) {
getParsingFlags(config).weekdayMismatch = true;
config._isValid = false;
return false;
}
}
return true;
}
var obsOffsets = {
UT: 0,
GMT: 0,
EDT: -4 * 60,
EST: -5 * 60,
CDT: -5 * 60,
CST: -6 * 60,
MDT: -6 * 60,
MST: -7 * 60,
PDT: -7 * 60,
PST: -8 * 60
};
function calculateOffset(obsOffset, militaryOffset, numOffset) {
if (obsOffset) {
return obsOffsets[obsOffset];
} else if (militaryOffset) {
// the only allowed military tz is Z
return 0;
} else {
var hm = parseInt(numOffset, 10);
var m = hm % 100, h = (hm - m) / 100;
return h * 60 + m;
}
}
// date and time from ref 2822 format
export function configFromRFC2822(config) {
var match = rfc2822.exec(preprocessRFC2822(config._i));
if (match) {
var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
if (!checkWeekday(match[1], parsedArray, config)) {
return;
}
config._a = parsedArray;
config._tzm = calculateOffset(match[8], match[9], match[10]);
config._d = createUTCDate.apply(null, config._a);
config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
getParsingFlags(config).rfc2822 = true;
} else {
config._isValid = false;
}
}
// date from iso format or fallback
export function configFromString(config) {
var matched = aspNetJsonRegex.exec(config._i);
if (matched !== null) {
config._d = new Date(+matched[1]);
return;
}
configFromISO(config);
if (config._isValid === false) {
delete config._isValid;
} else {
return;
}
configFromRFC2822(config);
if (config._isValid === false) {
delete config._isValid;
} else {
return;
}
// Final attempt, use Input Fallback
hooks.createFromInputFallback(config);
}
hooks.createFromInputFallback = deprecate(
'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
'discouraged and will be removed in an upcoming major release. Please refer to ' +
'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
function (config) {
config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
}
);
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