// TODO: add a barrel import here ffs

import type { HistoryCard, HistoryCategory } from '@/lib/history/types'

export function mergeAndSort(cards: HistoryCard[][]): HistoryCard[] {

  return cards

  .flat()

  .sort((a, b) => new Date(b.timestamp).getTime() - new Date(a.timestamp).getTime())

}

export function groupByDate(

  cards: HistoryCard[],

  now: Date = new Date(),

): Record<string, HistoryCard[]> {

  return cards.reduce<Record<string, HistoryCard[]>>((acc, card) => {

    const date = new Date(card.timestamp);

    const includeYear = date.getFullYear() !== now.getFullYear();

    const key = date.toLocaleDateString('pt-BR', {

      weekday: 'long',

      day: 'numeric',

      month: 'long',

      ...(includeYear ? { year: 'numeric' } : {}),

    });

    (acc[key] ??= []).push(card)

    return acc

  }, {})

}

export function filterByCategory(

  cards: HistoryCard[],

  active: HistoryCategory | 'all',

): HistoryCard[] {

  if (active === 'all') return cards

    return cards.filter(c => c.category === active)

}