export const DAYS_VIEW_SPANS = ['1d', '3d', '5d', '7d', '9d', '11d', '14d'] as const
export type DaysViewSpan = typeof DAYS_VIEW_SPANS[number]

export const AGENDA_VIEW_SPANS = ['1d', '3d', '1w', '2w', '3w', '1m'] as const
export type AgendaViewSpan = typeof AGENDA_VIEW_SPANS[number]

export const SPAN_TO_DAYS = {
  '1d': 1,
  '3d': 3,
  '5d': 5,
  '7d': 7,
  '9d': 9,
  '11d': 11,
  '14d': 14,
  '1w': 7,
  '2w': 14,
  '3w': 21,
  '1m': 30,
} as const

export type TimeSpanLabel = keyof typeof SPAN_TO_DAYS

export function spanToDays(span: TimeSpanLabel): number {
  return SPAN_TO_DAYS[span]
}

export function dayCountToDaysViewSpan(days: number): DaysViewSpan | null {
  const label = `${days}d`
  return DAYS_VIEW_SPANS.includes(label as DaysViewSpan) ? (label as DaysViewSpan) : null
}