plane/apps/app/helpers/calendar.helper.ts

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export const startOfWeek = (date: Date) => {
const startOfMonthDate = new Date(date.getFullYear(), date.getMonth(), 1);
const dayOfWeek = startOfMonthDate.getDay() % 7;
const startOfWeekDate = new Date(
startOfMonthDate.getFullYear(),
startOfMonthDate.getMonth(),
startOfMonthDate.getDate() - dayOfWeek
);
const timezoneOffset = startOfMonthDate.getTimezoneOffset();
const timezoneOffsetMilliseconds = timezoneOffset * 60 * 1000;
const startOfWeekAdjusted = new Date(startOfWeekDate.getTime() - timezoneOffsetMilliseconds);
return startOfWeekAdjusted;
};
export const lastDayOfWeek = (date: Date) => {
const lastDayOfPreviousMonth = new Date(date.getFullYear(), date.getMonth() + 1, 0);
const dayOfWeek = lastDayOfPreviousMonth.getDay() % 7;
const daysUntilEndOfWeek = 6 - dayOfWeek;
const lastDayOfWeekDate = new Date(
lastDayOfPreviousMonth.getFullYear(),
lastDayOfPreviousMonth.getMonth(),
lastDayOfPreviousMonth.getDate() + daysUntilEndOfWeek
);
const timezoneOffset = lastDayOfPreviousMonth.getTimezoneOffset();
const timezoneOffsetMilliseconds = timezoneOffset * 60 * 1000;
const lastDayOfWeekAdjusted = new Date(lastDayOfWeekDate.getTime() - timezoneOffsetMilliseconds);
return lastDayOfWeekAdjusted;
};
export const getCurrentWeekStartDate = (date: Date) => {
const today = new Date(date);
const dayOfWeek = today.getDay();
const startOfWeek = new Date(today.getFullYear(), today.getMonth(), today.getDate() - dayOfWeek);
const timezoneOffset = startOfWeek.getTimezoneOffset();
const timezoneOffsetMilliseconds = timezoneOffset * 60 * 1000;
const startOfWeekAdjusted = new Date(startOfWeek.getTime() - timezoneOffsetMilliseconds);
return startOfWeekAdjusted;
};
export const getCurrentWeekEndDate = (date: Date) => {
const today = new Date(date);
const dayOfWeek = today.getDay();
const endOfWeek = new Date(
today.getFullYear(),
today.getMonth(),
today.getDate() + (6 - dayOfWeek)
);
const timezoneOffset = endOfWeek.getTimezoneOffset();
const timezoneOffsetMilliseconds = timezoneOffset * 60 * 1000;
const endOfWeekAdjusted = new Date(endOfWeek.getTime() - timezoneOffsetMilliseconds);
return endOfWeekAdjusted;
};
export const eachDayOfInterval = ({ start, end }: { start: Date; end: Date }) => {
const days = [];
const current = new Date(start);
while (current <= end) {
days.push(new Date(current));
current.setDate(current.getDate() + 1);
}
return days;
};
export const weekDayInterval = ({ start, end }: { start: Date; end: Date }) => {
const dates = [];
const currentDate = new Date(start);
const endDate = new Date(end);
while (currentDate <= endDate) {
const dayOfWeek = currentDate.getDay();
if (dayOfWeek !== 0 && dayOfWeek !== 6) {
dates.push(new Date(currentDate));
}
currentDate.setDate(currentDate.getDate() + 1);
}
return dates;
};
export const formatDate = (date: Date, format: string): string => {
const day = date.getDate();
const month = date.getMonth() + 1;
const year = date.getFullYear();
const hours = date.getHours();
const minutes = date.getMinutes();
const seconds = date.getSeconds();
const daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
const monthsOfYear = [
"January",
"February",
"March",
"April",
"May",
"June",
"July",
"August",
"September",
"October",
"November",
"December",
];
const formattedDate = format
.replace("dd", day.toString().padStart(2, "0"))
.replace("d", day.toString())
.replace("eee", daysOfWeek[date.getDay()])
.replace("Month", monthsOfYear[month - 1])
.replace("yyyy", year.toString())
.replace("yyy", year.toString().slice(-3))
.replace("hh", hours.toString().padStart(2, "0"))
.replace("mm", minutes.toString().padStart(2, "0"))
.replace("ss", seconds.toString().padStart(2, "0"));
return formattedDate;
};
export const subtractMonths = (date: Date, numMonths: number) => {
const result = new Date(date);
result.setMonth(result.getMonth() - numMonths);
return result;
};
export const addMonths = (date: Date, numMonths: number) => {
const result = new Date(date);
result.setMonth(result.getMonth() + numMonths);
return result;
};
export const updateDateWithYear = (yearString: string, date: Date) => {
const year = parseInt(yearString);
const month = date.getMonth();
const day = date.getDate();
return new Date(year, month, day);
};
export const updateDateWithMonth = (monthString: string, date: Date) => {
const month = parseInt(monthString) - 1;
const year = date.getFullYear();
const day = date.getDate();
return new Date(year, month, day);
};
export const isSameMonth = (monthString: string, date: Date) => {
const month = parseInt(monthString) - 1;
return month === date.getMonth();
};
export const isSameYear = (yearString: string, date: Date) => {
const year = parseInt(yearString);
return year === date.getFullYear();
};
export const addSevenDaysToDate = (date: Date) => {
const currentDate = new Date(date);
const newDate = new Date(currentDate.setDate(currentDate.getDate() + 7));
return newDate;
};
export const subtract7DaysToDate = (date: Date) => {
const currentDate = new Date(date);
const newDate = new Date(currentDate.getTime() - 7 * 24 * 60 * 60 * 1000);
return newDate;
};