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import {dateTime, expandFormat} from '@gravity-ui/date-utils';
import type {DateTime} from '@gravity-ui/date-utils';
import {dayjs} from '@gravity-ui/date-utils/build/dayjs/index.js';
import type {LongDateFormat} from '@gravity-ui/date-utils/build/settings/types';
import {useLang} from '@gravity-ui/uikit';
import type {ExtractFunctionType} from '../types';
import {mergeDateTime} from '../utils/dates';
import type {IncompleteDate} from './IncompleteDate';
import {i18n} from './i18n';
import type {
AvailableSections,
DateFieldSection,
DateFieldSectionType,
DateFormatTokenMap,
FormatInfo,
FormatSection,
} from './types';
export const EDITABLE_SEGMENTS = {
year: true,
quarter: true,
month: true,
day: true,
weekday: true,
hour: true,
minute: true,
second: true,
dayPeriod: true,
} satisfies AvailableSections;
const escapedCharacters = {start: '[', end: ']'};
const formatTokenMap: DateFormatTokenMap = {
// Year
YY: 'year',
YYYY: 'year',
// Quarter
Q: 'quarter',
Qo: 'quarter',
// Month
M: 'month',
MM: 'month',
MMM: {sectionType: 'month', contentType: 'letter'},
MMMM: {sectionType: 'month', contentType: 'letter'},
// Day of the month
D: 'day',
DD: 'day',
Do: 'day',
// Day of the week
d: 'weekday',
dd: {sectionType: 'weekday', contentType: 'letter'},
ddd: {sectionType: 'weekday', contentType: 'letter'},
dddd: {sectionType: 'weekday', contentType: 'letter'},
// Day period AM, PM
A: {sectionType: 'dayPeriod', contentType: 'letter'},
a: {sectionType: 'dayPeriod', contentType: 'letter'},
// Hours
H: 'hour',
HH: 'hour',
h: 'hour',
hh: 'hour',
// Minutes
m: 'minute',
mm: 'minute',
// Seconds
s: 'second',
ss: 'second',
// Timezone
z: {sectionType: 'timeZoneName', contentType: 'letter'},
zzz: {sectionType: 'timeZoneName', contentType: 'letter'},
Z: {sectionType: 'timeZoneName', contentType: 'letter'},
ZZ: {sectionType: 'timeZoneName', contentType: 'letter'},
};
export const PAGE_STEP: Partial<Record<DateFieldSectionType, number>> = {
year: 5,
quarter: 2,
month: 2,
weekday: 3,
day: 7,
hour: 2,
minute: 15,
second: 15,
};
function getDateSectionConfigFromFormatToken(formatToken: string): {
type: DateFieldSectionType;
contentType: 'letter' | 'digit';
} {
const config = formatTokenMap[formatToken];
Iif (!config) {
console.error(
[
`The token "${formatToken}" is not supported by the Date field.`,
'Please try using another token.',
].join('\n'),
);
return {
type: 'literal',
contentType: 'letter',
};
}
if (typeof config === 'string') {
return {
type: config,
contentType: 'digit',
};
}
return {
type: config.sectionType,
contentType: config.contentType,
};
}
function isFourDigitYearFormat(format: string) {
return dateTime().format(format).length === 4;
}
function isHour12(format: string) {
return dateTime().set('hour', 15).format(format) !== '15';
}
function getSectionLimits(section: FormatSection, date: IncompleteDate, placeholder: DateTime) {
const {type, format} = section;
switch (type) {
case 'year': {
const isFourDigit = isFourDigitYearFormat(format);
return {
minValue: isFourDigit ? 1 : 0,
maxValue: isFourDigit ? 9999 : 99,
};
}
case 'quarter': {
return {minValue: 1, maxValue: 4};
}
case 'month': {
return {
minValue: 1,
maxValue: 12,
};
}
case 'weekday': {
return {
minValue: 0,
maxValue: 6,
};
}
case 'day': {
return {
minValue: 1,
maxValue: 31,
};
}
case 'hour': {
if (isHour12(format)) {
const isPM = (date.hour ?? placeholder.hour()) >= 12;
return {
minValue: isPM ? 12 : 0,
maxValue: isPM ? 23 : 11,
};
}
return {
minValue: 0,
maxValue: 23,
};
}
case 'minute':
case 'second': {
return {
minValue: 0,
maxValue: 59,
};
}
}
return {};
}
function getSectionValue(section: FormatSection, date: IncompleteDate) {
const type = section.type;
switch (type) {
case 'year': {
if (date.year === null) {
return null;
}
return isFourDigitYearFormat(section.format)
? date.year
: Number(dateTime().set('year', date.year).format(section.format));
}
case 'quarter':
case 'month':
case 'weekday':
case 'hour':
case 'minute':
case 'second':
case 'day':
case 'dayPeriod': {
return date[type];
}
}
return null;
}
const TYPE_MAPPING = {
weekday: 'day',
day: 'date',
dayPeriod: 'hour',
} as const;
export function getDurationUnitFromSectionType(type: DateFieldSectionType) {
Iif (!isEditableSectionType(type)) {
throw new Error(`${type} section does not have duration unit.`);
}
if (type in TYPE_MAPPING) {
return TYPE_MAPPING[type as keyof typeof TYPE_MAPPING];
}
return type as Exclude<
DateFieldSectionType,
keyof typeof TYPE_MAPPING | 'literal' | 'timeZoneName' | 'unknown'
>;
}
export function addSegment(
section: DateFieldSection,
date: IncompleteDate,
amount: number,
placeholder: DateTime,
) {
Iif (!isEditableSectionType(section.type)) {
throw new Error();
}
let val = date[section.type];
if (val === null) {
let newDate;
if (section.type === 'quarter' || section.type === 'month') {
newDate = date.set('month', placeholder.month() + 1);
I} else if (section.type === 'dayPeriod') {
newDate = date.set('hour', placeholder.hour());
I} else if (section.type === 'weekday' && date.day && date.day !== placeholder.date()) {
newDate = date.set('weekday', placeholder.set({date: date.day}).day());
} else {
newDate = date.set(
section.type,
placeholder[getDurationUnitFromSectionType(section.type)](),
);
}
Iif (
newDate.weekday !== null &&
(section.type === 'day' ||
section.type === 'month' ||
section.type === 'quarter' ||
section.type === 'year') &&
newDate.year !== null &&
newDate.month !== null &&
newDate.day !== null
) {
newDate = newDate.set(
'weekday',
placeholder
.set({date: newDate.day, month: newDate.month, year: newDate.year})
.day(),
);
}
return newDate;
}
Iif (section.type === 'dayPeriod') {
const hour = date.hour ?? placeholder.hour();
val = hour + (hour >= 12 ? -12 : 12);
} else {
val = val + amount;
const min = section.minValue;
const max = section.maxValue;
Eif (typeof min === 'number' && typeof max === 'number') {
const length = max - min + 1;
val = ((val - min + length) % length) + min;
}
}
Iif (section.type === 'dayPeriod') {
return date.set('hour', val);
}
Iif (section.type === 'year' && !isFourDigitYearFormat(section.format)) {
val = dateTime({input: `${val}`.padStart(2, '0'), format: section.format}).year();
}
const newDate = date.set(section.type, val);
if (newDate.year !== null && newDate.month !== null && newDate.day !== null) {
if (
date.weekday !== null &&
(section.type === 'day' ||
section.type === 'month' ||
section.type === 'quarter' ||
section.type === 'year')
) {
newDate.weekday = placeholder
.set({date: newDate.day, month: newDate.month, year: newDate.year})
.day();
E} else if (section.type === 'weekday') {
const d = placeholder
.set({date: newDate.day, month: newDate.month, year: newDate.year})
.set({day: val});
newDate.year = d.year();
newDate.month = d.month();
newDate.day = d.date();
}
}
return newDate;
}
export function setSegment(
section: FormatSection,
date: IncompleteDate,
amount: number,
placeholder: DateTime,
) {
const type = section.type;
let newDate;
switch (type) {
case 'year': {
newDate = date.set(
'year',
isFourDigitYearFormat(section.format)
? amount
: dateTime({
input: `${amount}`.padStart(2, '0'),
format: section.format,
}).year(),
);
break;
}
case 'quarter':
case 'month':
case 'weekday':
case 'day': {
newDate = date.set(type, amount);
break;
}
case 'dayPeriod': {
const hours = date.hour ?? placeholder.hour();
const wasPM = hours >= 12;
const isPM = amount === 1;
if (isPM === wasPM) {
newDate = date;
} else {
newDate = date.set('hour', wasPM ? hours - 12 : hours + 12);
}
break;
}
case 'hour': {
// In 12 hour time, ensure that AM/PM does not change
let sectionAmount = amount;
Iif (section.minValue === 12 || section.maxValue === 11) {
const hours = date.hour ?? placeholder.hour();
const wasPM = hours >= 12;
if (!wasPM && sectionAmount === 12) {
sectionAmount = 0;
}
if (wasPM && sectionAmount < 12) {
sectionAmount += 12;
}
}
newDate = date.set('hour', sectionAmount);
break;
}
case 'minute':
case 'second': {
newDate = date.set(type, amount);
break;
}
default: {
newDate = date;
break;
}
}
if (newDate.year !== null && newDate.month !== null && newDate.day !== null) {
Iif (
newDate.weekday !== null &&
(type === 'day' || type === 'month' || type === 'quarter' || type === 'year')
) {
newDate = newDate.set(
'weekday',
placeholder
.set({date: newDate.day, month: newDate.month, year: newDate.year})
.day(),
);
I} else if (type === 'weekday') {
const d = placeholder
.set({date: newDate.day, month: newDate.month, year: newDate.year})
.set({day: amount});
newDate.year = d.year();
newDate.month = d.month();
newDate.day = d.date();
}
}
return newDate;
}
function doesSectionHaveLeadingZeros(
contentType: 'digit' | 'letter',
sectionType: DateFieldSectionType,
format: string,
) {
if (contentType !== 'digit') {
return false;
}
switch (sectionType) {
case 'year': {
if (isFourDigitYearFormat(format)) {
const formatted0001 = dateTime().set('year', 1).format(format);
return formatted0001 === '0001';
}
const formatted2001 = dateTime().set('year', 2001).format(format);
return formatted2001 === '01';
}
case 'quarter': {
return false;
}
case 'month': {
return dateTime().startOf('year').format(format).length > 1;
}
case 'day': {
return dateTime().startOf('month').format(format).length > 1;
}
case 'weekday': {
return dateTime().startOf('week').format(format).length > 1;
}
case 'hour': {
return dateTime().set('hour', 1).format(format).length > 1;
}
case 'minute': {
return dateTime().set('minute', 1).format(format).length > 1;
}
case 'second': {
return dateTime().set('second', 1).format(format).length > 1;
}
default: {
throw new Error('Invalid section type');
}
}
}
function getSectionPlaceholder(
sectionConfig: Pick<DateFieldSection, 'type' | 'contentType'>,
currentTokenValue: string,
t: TranslateFunction,
) {
switch (sectionConfig.type) {
case 'year': {
return t('year_placeholder').repeat(dateTime().format(currentTokenValue).length);
}
case 'quarter': {
return t('quarter_placeholder').repeat(currentTokenValue.length);
}
case 'month': {
return t('month_placeholder').repeat(sectionConfig.contentType === 'letter' ? 4 : 2);
}
case 'day': {
return t('day_placeholder').repeat(2);
}
case 'weekday': {
return t('weekday_placeholder').repeat(
sectionConfig.contentType === 'letter' ? currentTokenValue.length : 2,
);
}
case 'hour': {
return t('hour_placeholder').repeat(2);
}
case 'minute': {
return t('minute_placeholder').repeat(2);
}
case 'second': {
return t('second_placeholder').repeat(2);
}
case 'dayPeriod': {
return t('dayPeriod_placeholder');
}
default: {
return currentTokenValue;
}
}
}
type TranslateFunction = ExtractFunctionType<typeof i18n>;
export function splitFormatIntoSections(format: string, t: TranslateFunction = i18n, lang = 'en') {
const sections: FormatSection[] = [];
const localeFormats = dayjs.Ls[lang].formats as LongDateFormat;
const expandedFormat = expandFormat(format, localeFormats);
let currentTokenValue = '';
let isSeparator = false;
let isInEscapeBoundary = false;
for (let i = 0; i < expandedFormat.length; i++) {
const char = expandedFormat[i] || '';
Iif (isInEscapeBoundary) {
if (char === escapedCharacters.end) {
isInEscapeBoundary = false;
continue;
}
currentTokenValue += char;
} else if (char.match(/[a-zA-Z]/)) {
if (isSeparator) {
addLiteralSection(sections, currentTokenValue);
currentTokenValue = '';
}
isSeparator = false;
currentTokenValue += char;
} else {
Eif (!isSeparator) {
addFormatSection(sections, currentTokenValue, t, lang);
currentTokenValue = '';
}
isSeparator = true;
Iif (char === escapedCharacters.start) {
isInEscapeBoundary = true;
} else {
currentTokenValue += char;
}
}
}
Eif (currentTokenValue) {
Iif (isSeparator) {
addLiteralSection(sections, currentTokenValue);
} else {
addFormatSection(sections, currentTokenValue, t, lang);
}
}
return sections;
}
function addFormatSection(
sections: FormatSection[],
token: string,
t: TranslateFunction,
lang: string,
) {
Iif (!token) {
return;
}
const sectionConfig = getDateSectionConfigFromFormatToken(token);
const hasLeadingZeros = doesSectionHaveLeadingZeros(
sectionConfig.contentType,
sectionConfig.type,
token,
);
sections.push({
...sectionConfig,
format: token,
placeholder: getSectionPlaceholder(sectionConfig, token, t),
options: getSectionOptions(sectionConfig, token, lang),
hasLeadingZeros,
});
}
function addLiteralSection(sections: FormatSection[], token: string) {
Iif (!token) {
return;
}
sections.push({
type: 'literal',
contentType: 'letter',
format: token,
placeholder: token,
hasLeadingZeros: false,
});
}
function getSectionOptions(
section: Pick<FormatSection, 'type' | 'contentType'>,
token: string,
lang: string,
) {
switch (section.type) {
case 'month': {
const format = section.contentType === 'letter' ? token : 'MMMM';
let date = dateTime({lang}).startOf('year');
const options: string[] = [];
for (let i = 0; i < 12; i++) {
options.push(date.format(format).toLocaleUpperCase());
date = date.add(1, 'months');
}
return options;
}
case 'dayPeriod': {
const amDayPeriod = dateTime().hour(0);
const pmDayPeriod = amDayPeriod.hour(12);
const options = [
amDayPeriod.format(token).toLocaleUpperCase(),
pmDayPeriod.format(token).toLocaleUpperCase(),
];
return options;
}
case 'weekday': {
const format = section.contentType === 'letter' ? token : 'dddd';
let date = dateTime({lang}).day(0);
const options: string[] = [];
for (let i = 0; i < 7; i++) {
options.push(date.format(format).toLocaleUpperCase());
date = date.add(1, 'day');
}
return options;
}
}
return undefined;
}
export function cleanString(dirtyString: string) {
return dirtyString.replace(/[\u2066\u2067\u2068\u2069]/g, '');
}
export function getEditableSections(
sections: FormatSection[],
value: IncompleteDate,
placeholder: DateTime,
) {
return sections.map((section) => toEditableSection(section, value, placeholder));
}
export function isEditableSectionType(
type: DateFieldSectionType,
): type is keyof typeof EDITABLE_SEGMENTS {
return EDITABLE_SEGMENTS[type as keyof typeof EDITABLE_SEGMENTS] ?? false;
}
export function toEditableSection(
section: FormatSection,
value: IncompleteDate,
placeholder: DateTime,
): DateFieldSection {
let renderedValue = section.placeholder;
let val = isEditableSectionType(section.type) ? value[section.type] : null;
Iif (section.type === 'timeZoneName') {
renderedValue = placeholder.format(section.format);
} else if (isEditableSectionType(section.type) && val !== null) {
const sectionDate = placeholder.set({month: 0, date: 1, hour: 0, minute: 0, second: 0});
let sectionType = getDurationUnitFromSectionType(section.type);
if (section.type === 'month') {
val -= 1;
} else if (section.type === 'quarter') {
sectionType = 'month';
val = (val - 1) * 3;
I} else if (section.type === 'dayPeriod') {
if (value.hour === null) {
val = val === 1 ? 12 : 0;
} else {
val = value.hour;
}
}
renderedValue = sectionDate.set(sectionType, val).format(section.format);
Iif (section.contentType === 'digit' && renderedValue.length < section.placeholder.length) {
renderedValue = renderedValue.padStart(section.placeholder.length, '0');
}
}
const newSection = {
...section,
value: getSectionValue(section, value),
textValue: renderedValue,
...getSectionLimits(section, value, placeholder),
};
return newSection;
}
function parseDate(options: {input: string; format: string; timeZone?: string}) {
let date = dateTime(options);
Iif (!date.isValid()) {
date = dateTime({...options, format: undefined});
}
return date;
}
function isDateStringWithTimeZone(str: string) {
return /z$/i.test(str) || /[+-]\d\d:\d\d$/.test(str);
}
/**
* Trims leading and trailing spaces from a string and replaces multiple consecutive spaces with a single space.
* @param str - The input string to process.
* @returns The processed string with trimmed spaces and single spaces between words.
*/
function trimExtraSpaces(str: string) {
return str.trim().replace(/\s+/g, ' ');
}
export function parseDateFromString(str: string, format: string, timeZone?: string): DateTime {
const input = typeof str === 'string' ? trimExtraSpaces(str) : str;
let date = parseDate({input, format, timeZone});
Eif (date.isValid()) {
Eif (timeZone && !isDateStringWithTimeZone(str)) {
const time = parseDate({input: str, format});
date = mergeDateTime(date, time);
}
}
return date;
}
export function useFormatSections(format: string) {
const {t} = i18n.useTranslation();
const {lang} = useLang();
const [sections, setSections] = React.useState(() => splitFormatIntoSections(format, t, lang));
const [previous, setFormat] = React.useState({format, lang});
if (format !== previous.format || lang !== previous.lang) {
setFormat({format, lang});
setSections(splitFormatIntoSections(format, t, lang));
}
return sections;
}
const dateUnits = ['day', 'month', 'quarter', 'year'] satisfies DateFieldSectionType[];
const timeUnits = ['second', 'minute', 'hour'] satisfies DateFieldSectionType[];
export function getFormatInfo(sections: FormatSection[]): FormatInfo {
const availableUnits: AvailableSections = {};
let hasDate = false;
let hasTime = false;
let minDateUnitIndex = dateUnits.length - 1;
let minTimeUnitIndex = timeUnits.length - 1;
for (const s of sections) {
if (!isEditableSectionType(s.type)) {
continue;
}
const dateUnitIndex = dateUnits.indexOf(s.type as any);
const timeUnitIndex = timeUnits.indexOf(s.type as any);
availableUnits[s.type] = true;
hasDate ||= dateUnitIndex !== -1;
hasTime ||= timeUnitIndex !== -1;
minDateUnitIndex =
dateUnitIndex === -1 ? minDateUnitIndex : Math.min(dateUnitIndex, minDateUnitIndex);
minTimeUnitIndex =
timeUnitIndex === -1 ? minTimeUnitIndex : Math.min(timeUnitIndex, minTimeUnitIndex);
}
return {
availableUnits,
hasDate,
hasTime,
minDateUnit: dateUnits[minDateUnitIndex] ?? 'day',
minTimeUnit: timeUnits[minTimeUnitIndex] ?? 'second',
};
}
export function adjustDateToFormat(
date: DateTime,
formatInfo: FormatInfo,
method: 'startOf' | 'endOf' = 'startOf',
) {
let newDate = date;
Eif (formatInfo.hasDate) {
Iif (formatInfo.minDateUnit !== 'day') {
newDate = newDate[method](formatInfo.minDateUnit);
newDate = mergeDateTime(newDate, date);
}
}
if (formatInfo.hasTime) {
newDate = mergeDateTime(newDate, date[method](formatInfo.minTimeUnit));
}
return newDate;
}
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