Sharkey/packages/client/src/scripts/format-time-string.ts

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const defaultLocaleStringFormats: {[index: string]: string} = {
'weekday': 'narrow',
'era': 'narrow',
'year': 'numeric',
'month': 'numeric',
'day': 'numeric',
'hour': 'numeric',
'minute': 'numeric',
'second': 'numeric',
'timeZoneName': 'short'
};
function formatLocaleString(date: Date, format: string): string {
return format.replace(/\{\{(\w+)(:(\w+))?\}\}/g, (match: string, kind: string, unused?, option?: string) => {
if (['weekday', 'era', 'year', 'month', 'day', 'hour', 'minute', 'second', 'timeZoneName'].includes(kind)) {
return date.toLocaleString(window.navigator.language, { [kind]: option ? option : defaultLocaleStringFormats[kind] });
} else {
return match;
}
});
}
export function formatDateTimeString(date: Date, format: string): string {
return format
.replace(/yyyy/g, date.getFullYear().toString())
.replace(/yy/g, date.getFullYear().toString().slice(-2))
.replace(/MMMM/g, date.toLocaleString(window.navigator.language, { month: 'long' }))
.replace(/MMM/g, date.toLocaleString(window.navigator.language, { month: 'short' }))
.replace(/MM/g, (`0${date.getMonth() + 1}`).slice(-2))
.replace(/M/g, (date.getMonth() + 1).toString())
.replace(/dd/g, (`0${date.getDate()}`).slice(-2))
.replace(/d/g, date.getDate().toString())
.replace(/HH/g, (`0${date.getHours()}`).slice(-2))
.replace(/H/g, date.getHours().toString())
.replace(/hh/g, (`0${(date.getHours() % 12) || 12}`).slice(-2))
.replace(/h/g, ((date.getHours() % 12) || 12).toString())
.replace(/mm/g, (`0${date.getMinutes()}`).slice(-2))
.replace(/m/g, date.getMinutes().toString())
.replace(/ss/g, (`0${date.getSeconds()}`).slice(-2))
.replace(/s/g, date.getSeconds().toString())
.replace(/tt/g, date.getHours() >= 12 ? 'PM' : 'AM');
}
export function formatTimeString(date: Date, format: string): string {
return format.replace(/\[(([^\[]|\[\])*)\]|(([yMdHhmst])\4{0,3})/g, (match: string, localeformat?: string, unused?, datetimeformat?: string) => {
if (localeformat) return formatLocaleString(date, localeformat);
if (datetimeformat) return formatDateTimeString(date, datetimeformat);
return match;
});
}