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resolvePresetWindow

Resolves a preset id into a { from, to } ISO-8601 UTC window ending at end-of-day today.

import { resolvePresetWindow, DEFAULT_DATE_RANGE_PRESETS } from '@conduction/nextcloud-vue'

resolvePresetWindow('last-7', DEFAULT_DATE_RANGE_PRESETS)
// { from: '2026-05-15T00:00:00.000Z', to: '2026-05-21T23:59:59.999Z' }

resolvePresetWindow('custom', DEFAULT_DATE_RANGE_PRESETS)
// null  — `custom` (and any preset with days: null) is manual; caller preserves the current window

// A `period` preset is calendar-aligned — the CURRENT unit to date, not a rolling span.
resolvePresetWindow('month', [{ id: 'month', label: 'Current month', period: 'month' }])
// { from: '2026-05-01T00:00:00.000Z', to: '2026-05-21T23:59:59.999Z' }  (on 21 May)

A preset declares one of three window kinds, checked in this order — period ('week' | 'month' | 'quarter' | 'year', calendar-aligned, weeks start Monday), hours (rolling, ending now), days (rolling whole days). When a preset carries both period and a legacy days hint, period wins.

Arguments:

  • presetId (string) — the preset id to resolve, e.g. 'last-30'.
  • presets (array) — the preset list (typically DEFAULT_DATE_RANGE_PRESETS or a consumer-supplied variant).
  • now (Date, optional) — overrides new Date() for deterministic testing.

Returns { from, to } strings or null for manual presets / unknown ids.

See CnDateRangePicker.