club-launcher/electron/epic.ts

import { existsSync, readdirSync, readFileSync } from 'fs'
import { join } from 'path'

export interface EpicGame {
  id: string
  name: string
  appName: string
  source: 'epic'
  image: string
  installed: true
}

interface EpicManifest {
  DisplayName?: string
  AppName?: string
  MainGameAppName?: string
  bIsIncompleteInstall?: boolean
  AppCategories?: string[]
}

const MANIFESTS_DIR = 'C:\\ProgramData\\Epic\\EpicGamesLauncher\\Data\\Manifests'

export function detectEpicGames(): EpicGame[] {
  if (process.platform !== 'win32') return []
  if (!existsSync(MANIFESTS_DIR)) return []

  let entries: string[]
  try {
    entries = readdirSync(MANIFESTS_DIR)
  } catch {
    return []
  }

  const games: EpicGame[] = []

  for (const entry of entries) {
    if (!entry.endsWith('.item')) continue

    try {
      const raw = readFileSync(join(MANIFESTS_DIR, entry), 'utf-8')
      const m: EpicManifest = JSON.parse(raw)

      const name = m.DisplayName
      const appName = m.AppName
      const mainApp = m.MainGameAppName

      if (!name || !appName) continue
      if (m.bIsIncompleteInstall) continue
      // Skip DLCs
      if (mainApp && appName !== mainApp) continue
      // Only game categories
      const cats = m.AppCategories ?? []
      const isGame = cats.length === 0 || cats.some((c) => c.startsWith('games'))
      if (!isGame) continue

      games.push({
        id: `epic_${appName}`,
        name,
        appName,
        source: 'epic',
        image: '',
        installed: true,
      })
    } catch {
      // skip bad manifests
    }
  }

  games.sort((a, b) => a.name.localeCompare(b.name, 'ru'))
  return games
}