/**
 * Official campaign kit assets (C196/C203) and the reel's product art: reads the
 * committed PNGs as data URIs, so every local renderer embeds the brand
 * without network access. The default root resolves from this module (never
 * the cwd): the chart entry runs from temp dirs in the tests and the e2e.
 */

import { readFile } from 'node:fs/promises'
import { dirname, join, resolve } from 'node:path'
import { fileURLToPath } from 'node:url'

const KIT_ASSETS = {
  namePositive: 'jorge-solla-positivo.png',
  nameNegative: 'jorge-solla-negativo.png',
  completePositive: 'marca-positiva-completa.png',
  completeNegative: 'marca-negativa-completa.png',
  star: 'estrela.png',
  patternShapes: 'pattern-shapes.png',
  heart: 'coração.png',
  fist: 'punho.png',
}

const defaultRoot = join(dirname(fileURLToPath(import.meta.url)), '..', '..')

/**
 * PNG files (repo-relative or kit-relative) as data URIs.
 *
 * @param {{ root?: string, files: Record<string, string> }} options repo root
 *   (defaults to this module's repo) and one relative path per asset key.
 * @returns {Promise<Record<string, string>>} data URI per key.
 */
export const readImageDataUris = async ({ root = defaultRoot, files }) => {
  const entries = await Promise.all(
    Object.entries(files).map(async ([key, file]) => {
      if (typeof file !== 'string' || file.trim() === '') {
        throw new Error(`caminho de imagem inválido para o ativo "${key}".`)
      }
      const bytes = await readFile(resolve(root, file))
      return [key, `data:image/png;base64,${bytes.toString('base64')}`]
    }),
  )
  return Object.fromEntries(entries)
}

/**
 * Official campaign kit marks as data URIs (committed under `public/campaign-kit`).
 *
 * @param {{ root?: string, keys?: string[] }} [options] repo root (defaults to
 *   this module's repo) and the asset keys to read (defaults to all).
 * @returns {Promise<Record<string, string>>} data URI per requested key.
 */
export const readKitAssets = async ({
  root = defaultRoot,
  keys = Object.keys(KIT_ASSETS),
} = {}) => {
  const files = {}
  for (const key of keys) {
    const file = KIT_ASSETS[key]
    if (!file) throw new Error(`ativo do kit desconhecido: ${key}`)
    files[key] = join('public', 'campaign-kit', file)
  }
  return readImageDataUris({ root, files })
}