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import { StorageUsageLevelName, StorageUsageLevels } from 'calypso/state/rewind/storage/types';
const THRESHOLDS: Record< number, StorageUsageLevelName > = {
100: StorageUsageLevels.Full,
80: StorageUsageLevels.Critical,
65: StorageUsageLevels.Warning,
0: StorageUsageLevels.Normal,
};
const THRESHOLD_VALUES = Object.keys( THRESHOLDS )
.map( Number )
// Sorting from highest to lowest is important for getUsageLevel,
// because it looks at the elements *in order*.
.sort( ( a, b ) => b - a );
export const getUsageLevel = (
used: number | undefined,
available: number | undefined,
minDaysOfBackupsAllowed: number,
daysOfBackupsAllowed: number,
retentionDays: number,
daysOfBackupsSaved: number
): StorageUsageLevelName | null => {
if ( available === undefined || used === undefined ) {
return null;
}
if (
!! minDaysOfBackupsAllowed &&
!! daysOfBackupsAllowed &&
!! retentionDays &&
!! daysOfBackupsSaved
) {
// if current days of backups saved is less than or equal to the minimum and storage is overlimit.
if (
minDaysOfBackupsAllowed >= daysOfBackupsSaved &&
used > 0 &&
available > 0 &&
used >= available
) {
return StorageUsageLevels.Full;
}
// if current allowed days of backups is less than plan's retention days, that means
// we discarded some backups to make other fit in current storage limit.
if ( daysOfBackupsAllowed < retentionDays ) {
return StorageUsageLevels.BackupsDiscarded;
}
}
// Guard against divide-by-zero
if ( 0 === available ) {
return StorageUsageLevels.Normal;
}
const percentUsed = ( 100 * used ) / available;
const thresholdValue = THRESHOLD_VALUES.find( ( value ) => percentUsed >= value ) ?? 0;
return THRESHOLDS[ thresholdValue ];
};
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