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umami/lib/date.js

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JavaScript
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import moment from 'moment-timezone';
import {
addMinutes,
addHours,
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addDays,
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addMonths,
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addYears,
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subHours,
subDays,
startOfHour,
startOfDay,
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startOfWeek,
startOfMonth,
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startOfYear,
endOfHour,
endOfDay,
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endOfWeek,
endOfMonth,
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endOfYear,
differenceInHours,
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differenceInCalendarDays,
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differenceInCalendarMonths,
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differenceInCalendarYears,
} from 'date-fns';
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export function getTimezone() {
return moment.tz.guess();
}
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export function getLocalTime(t) {
return addMinutes(new Date(t), new Date().getTimezoneOffset());
}
export function getDateRange(value) {
const now = new Date();
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const { num, unit } = value.match(/^(?<num>[0-9]+)(?<unit>hour|day|week|month|year)$/).groups;
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if (+num === 1) {
switch (unit) {
case 'day':
return {
startDate: startOfDay(now),
endDate: endOfDay(now),
unit: 'hour',
value,
};
case 'week':
return {
startDate: startOfWeek(now),
endDate: endOfWeek(now),
unit: 'day',
value,
};
case 'month':
return {
startDate: startOfMonth(now),
endDate: endOfMonth(now),
unit: 'day',
value,
};
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case 'year':
return {
startDate: startOfYear(now),
endDate: endOfYear(now),
unit: 'month',
value,
};
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}
}
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switch (unit) {
case 'day':
return {
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startDate: subDays(startOfDay(now), num - 1),
endDate: endOfDay(now),
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unit,
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value,
};
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case 'hour':
return {
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startDate: subHours(startOfHour(now), num - 1),
endDate: endOfHour(now),
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unit,
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value,
};
}
}
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export function getDateRangeValues(startDate, endDate) {
let unit = 'year';
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if (differenceInHours(endDate, startDate) <= 48) {
unit = 'hour';
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} else if (differenceInCalendarDays(endDate, startDate) <= 90) {
unit = 'day';
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} else if (differenceInCalendarMonths(endDate, startDate) <= 24) {
unit = 'month';
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}
return { startDate: startOfDay(startDate), endDate: endOfDay(endDate), unit };
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}
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export function getDateFromString(str) {
const [ymd, hms] = str.split(' ');
const [year, month, day] = ymd.split('-');
if (hms) {
const [hour, min, sec] = hms.split(':');
return new Date(year, month - 1, day, hour, min, sec);
}
return new Date(year, month - 1, day);
}
const dateFuncs = {
hour: [differenceInHours, addHours, startOfHour],
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day: [differenceInCalendarDays, addDays, startOfDay],
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month: [differenceInCalendarMonths, addMonths, startOfMonth],
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year: [differenceInCalendarYears, addYears, startOfYear],
};
export function getDateArray(data, startDate, endDate, unit) {
const arr = [];
const [diff, add, normalize] = dateFuncs[unit];
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const n = diff(endDate, startDate) + 1;
function findData(t) {
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const x = data.find(e => {
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return normalize(getDateFromString(e.t)).getTime() === t.getTime();
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});
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return x?.y || 0;
}
for (let i = 0; i < n; i++) {
const t = normalize(add(startDate, i));
const y = findData(t);
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arr.push({ ...data[i], t, y });
}
return arr;
}
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export function getDateLength(startDate, endDate, unit) {
const [diff] = dateFuncs[unit];
return diff(endDate, startDate) + 1;
}