import type { Event } from 'nostr-tools'
import type { Review } from '@/types/nostr'
import { extractTagsFromEvent } from '../nostrTagSystem'
import { buildObjectId } from '../urlGenerator'
import { generateHashId } from '../hashIdGenerator'
import { readRewardInfo, readReviewInput, readTextTag, resolveObjectIdParts } from './shared'

export async function parseReviewFromEvent(event: Event): Promise<Review | null> {
  try {
    const tags = extractTagsFromEvent(event)
    const input = readReviewInput(tags)
    if (!input) {
      return null
    }
    const { hash, version, index } = await resolveObjectIdParts({
      ...(input.idTag ? { idTag: input.idTag } : {}),
      defaultVersion: input.defaultVersion,
      defaultIndex: 0,
      generateHash: async (): Promise<string> =>
        generateHashId({
          type: 'quote',
          pubkey: event.pubkey,
          articleId: input.articleId,
          reviewerPubkey: input.reviewerPubkey,
          content: event.content,
          title: input.title ?? '',
        }),
    })
    const rewardInfo = readRewardInfo(event.tags)
    const text = readTextTag(event.tags)
    return buildReviewFromParsed({ event, input, hash, version, index, rewardInfo, text })
  } catch (e) {
    console.error('Error parsing review:', e)
    return null
  }
}

function buildReviewFromParsed(params: {
  event: Event
  input: { articleId: string; reviewerPubkey: string; title: string | undefined; description: string }
  hash: string
  version: number
  index: number
  rewardInfo: { rewarded: boolean; rewardAmount: number | undefined }
  text: string | undefined
}): Review {
  const id = buildObjectId(params.hash, params.index, params.version)
  const review: Review = {
    id,
    hash: params.hash,
    version: params.version,
    index: params.index,
    articleId: params.input.articleId,
    authorPubkey: params.event.pubkey,
    reviewerPubkey: params.input.reviewerPubkey,
    content: params.event.content,
    description: params.input.description,
    createdAt: params.event.created_at,
    ...(params.input.title ? { title: params.input.title } : {}),
    ...(params.text ? { text: params.text } : {}),
    ...(params.rewardInfo.rewarded ? { rewarded: true } : {}),
    ...(params.rewardInfo.rewardAmount !== undefined ? { rewardAmount: params.rewardInfo.rewardAmount } : {}),
  }
  review.kindType = 'review'
  return review
}