PeerTube/server/lib/timeserie.ts

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import { logger } from '@server/helpers/logger'
function buildGroupByAndBoundaries (startDateString: string, endDateString: string) {
const startDate = new Date(startDateString)
const endDate = new Date(endDateString)
const groupInterval = buildGroupInterval(startDate, endDate)
logger.debug('Found "%s" group interval.', groupInterval, { startDate, endDate })
// Remove parts of the date we don't need
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if (groupInterval.endsWith(' day') || groupInterval.endsWith(' days')) {
startDate.setHours(0, 0, 0, 0)
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} else if (groupInterval.endsWith(' hour') || groupInterval.endsWith(' hours')) {
startDate.setMinutes(0, 0, 0)
} else {
startDate.setSeconds(0, 0)
}
return {
groupInterval,
startDate,
endDate
}
}
// ---------------------------------------------------------------------------
export {
buildGroupByAndBoundaries
}
// ---------------------------------------------------------------------------
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function buildGroupInterval (startDate: Date, endDate: Date): string {
const aDay = 86400
const anHour = 3600
const aMinute = 60
const diffSeconds = (endDate.getTime() - startDate.getTime()) / 1000
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if (diffSeconds >= 15 * aDay) return '1 day'
if (diffSeconds >= 8 * aDay) return '12 hours'
if (diffSeconds >= 4 * aDay) return '6 hours'
if (diffSeconds >= 15 * anHour) return '1 hour'
if (diffSeconds >= 180 * aMinute) return '10 minutes'
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return '1 minute'
}