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import dayjs from "dayjs";
/**
* Provides utilities to transform hydrated and persisted data.
*/
export class DateUtils {
// -------------------------------------------------------------------------
// Public Static Methods
// -------------------------------------------------------------------------
/**
* Normalizes date object hydrated from the database.
*/
static normalizeHydratedDate(mixedDate) {
if (!mixedDate)
return mixedDate;
return typeof mixedDate === "string"
? new Date(mixedDate)
: mixedDate;
}
/**
* Converts given value into date string in a "YYYY-MM-DD" format.
*/
static mixedDateToDateString(value) {
if (value instanceof Date) {
return (this.formatZerolessValue(value.getFullYear(), 4) +
"-" +
this.formatZerolessValue(value.getMonth() + 1) +
"-" +
this.formatZerolessValue(value.getDate()));
}
return value;
}
/**
* Converts given value into date object.
*/
static mixedDateToDate(mixedDate, toUtc = false, useMilliseconds = true) {
/**
* new Date(ISOString) is not a reliable parser to date strings.
* It's better to use 'date-fns' parser to parser string in ISO Format.
*
* The problem here is with wrong timezone.
*
* For example:
*
* ``new Date('2021-04-28')`` will generate `2021-04-28T00:00:00.000Z`
* in my timezone, which is not true for my timezone (GMT-0300). It should
* be `2021-04-28T03:00:00.000Z` as `new Date(2021, 3, 28)` generates.
*
* https://stackoverflow.com/a/2587398
*/
let date = typeof mixedDate === "string"
? dayjs(mixedDate).toDate()
: mixedDate;
if (toUtc)
date = new Date(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate(), date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(), date.getUTCMilliseconds());
if (!useMilliseconds)
date.setUTCMilliseconds(0);
return date;
}
/**
* Converts given value into time string in a "HH:mm:ss" format.
*/
static mixedDateToTimeString(value, skipSeconds = false) {
if (value instanceof Date)
return (this.formatZerolessValue(value.getHours()) +
":" +
this.formatZerolessValue(value.getMinutes()) +
(!skipSeconds
? ":" + this.formatZerolessValue(value.getSeconds())
: ""));
return value;
}
/**
* Converts given value into time string in a "HH:mm:ss" format.
*/
static mixedTimeToDate(value) {
if (typeof value === "string") {
const [hours, minutes, seconds] = value.split(":");
const date = new Date();
if (hours)
date.setHours(parseInt(hours));
if (minutes)
date.setMinutes(parseInt(minutes));
if (seconds)
date.setSeconds(parseInt(seconds));
return date;
}
return value;
}
/**
* Converts given string value with "-" separator into a "HH:mm:ss" format.
*/
static mixedTimeToString(value, skipSeconds = false) {
value =
value instanceof Date
? value.getHours() +
":" +
value.getMinutes() +
(!skipSeconds ? ":" + value.getSeconds() : "")
: value;
if (typeof value === "string") {
return value
.split(":")
.map((v) => (v.length === 1 ? "0" + v : v)) // append zero at beginning if we have a first-zero-less number
.join(":");
}
return value;
}
/**
* Converts given value into datetime string in a "YYYY-MM-DD HH-mm-ss" format.
*/
static mixedDateToDatetimeString(value, useMilliseconds) {
if (typeof value === "string") {
value = new Date(value);
}
if (value instanceof Date) {
let finalValue = this.formatZerolessValue(value.getFullYear(), 4) +
"-" +
this.formatZerolessValue(value.getMonth() + 1) +
"-" +
this.formatZerolessValue(value.getDate()) +
" " +
this.formatZerolessValue(value.getHours()) +
":" +
this.formatZerolessValue(value.getMinutes()) +
":" +
this.formatZerolessValue(value.getSeconds());
if (useMilliseconds)
finalValue += `.${this.formatMilliseconds(value.getMilliseconds())}`;
value = finalValue;
}
return value;
}
/**
* Converts given value into utc datetime string in a "YYYY-MM-DD HH-mm-ss.sss" format.
*/
static mixedDateToUtcDatetimeString(value) {
if (typeof value === "string") {
value = new Date(value);
}
if (value instanceof Date) {
return (this.formatZerolessValue(value.getUTCFullYear(), 4) +
"-" +
this.formatZerolessValue(value.getUTCMonth() + 1) +
"-" +
this.formatZerolessValue(value.getUTCDate()) +
" " +
this.formatZerolessValue(value.getUTCHours()) +
":" +
this.formatZerolessValue(value.getUTCMinutes()) +
":" +
this.formatZerolessValue(value.getUTCSeconds()) +
"." +
this.formatMilliseconds(value.getUTCMilliseconds()));
}
return value;
}
/**
* Converts each item in the given array to string joined by "," separator.
*/
static simpleArrayToString(value) {
if (Array.isArray(value)) {
return value.map((i) => String(i)).join(",");
}
return value;
}
/**
* Converts given string to simple array split by "," separator.
*/
static stringToSimpleArray(value) {
if (typeof value === "string") {
if (value.length > 0) {
return value.split(",");
}
else {
return [];
}
}
return value;
}
static simpleJsonToString(value) {
return JSON.stringify(value);
}
static stringToSimpleJson(value) {
return typeof value === "string" ? JSON.parse(value) : value;
}
static simpleEnumToString(value) {
return "" + value;
}
static stringToSimpleEnum(value, columnMetadata) {
if (columnMetadata.enum &&
!isNaN(value) &&
columnMetadata.enum.indexOf(parseInt(value)) >= 0) {
// convert to number if that exists in poosible enum options
value = parseInt(value);
}
return value;
}
// -------------------------------------------------------------------------
// Private Static Methods
// -------------------------------------------------------------------------
/**
* Formats given number to "0x" format, e.g. if the totalLength = 2 and the value is 1 then it will return "01".
*/
static formatZerolessValue(value, totalLength = 2) {
const pad = "0".repeat(totalLength);
return String(`${pad}${value}`).slice(-totalLength);
}
/**
* Formats given number to "0x" format, e.g. if it is 1 then it will return "01".
*/
static formatMilliseconds(value) {
if (value < 10) {
return "00" + value;
}
else if (value < 100) {
return "0" + value;
}
else {
return String(value);
}
}
}
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