/**
 * Helper functions for caching publications and series by hash
 */

import type { Event } from 'nostr-tools'
import { parseObjectId } from '../urlGenerator'
import { extractTagsFromEvent } from '../nostrTagSystem'
import { extractPublicationFromEvent, extractSeriesFromEvent } from '../metadataExtractor'
import { groupAndCacheEventsByHash } from './eventCacheHelper'

export async function cachePublicationsByHash(events: Event[]): Promise<void> {
  await groupAndCacheEventsByHash(events, {
    objectType: 'publication',
    extractor: extractPublicationFromEvent,
    getHash: (extracted: unknown): string | null => {
      const id = (extracted as { id?: string })?.id
      if (!id) {
        return null
      }
      const parsed = parseObjectId(id)
      return parsed.hash ?? id
    },
    getIndex: (extracted: unknown): number => {
      return (extracted as { index?: number })?.index ?? 0
    },
    getVersion: (event: Event): number => {
      return extractTagsFromEvent(event).version ?? 0
    },
    getHidden: (event: Event): boolean => {
      return extractTagsFromEvent(event).hidden ?? false
    },
  })
}

export async function cacheSeriesByHash(events: Event[]): Promise<void> {
  await groupAndCacheEventsByHash(events, {
    objectType: 'series',
    extractor: extractSeriesFromEvent,
    getHash: (extracted: unknown): string | null => {
      const id = (extracted as { id?: string })?.id
      if (!id) {
        return null
      }
      const parsed = parseObjectId(id)
      return parsed.hash ?? id
    },
    getIndex: (extracted: unknown): number => {
      return (extracted as { index?: number })?.index ?? 0
    },
    getVersion: (event: Event): number => {
      return extractTagsFromEvent(event).version ?? 0
    },
    getHidden: (event: Event): boolean => {
      return extractTagsFromEvent(event).hidden ?? false
    },
  })
}