export interface ProcessDisplayNamePreset {
  match: string
  displayName: string
}

const DEFAULT_IGNORED_WINDOW_KEYWORDS = [
  'NVIDIA Overlay',
  'Twinkle Tray Panel'
]

const DEFAULT_PROCESS_DISPLAY_NAME_PRESETS: ProcessDisplayNamePreset[] = [
  { match: 'microsoft vs code\\code.exe', displayName: 'Visual Studio Code' },
  { match: 'msedge.exe', displayName: 'Microsoft Edge' },
  { match: 'windowsTerminal.exe', displayName: '终端' },
  { match: 'windowsterminal.exe', displayName: '终端' },
  { match: 'blender.exe', displayName: 'Blender' },
  { match: 'chrome.exe', displayName: 'Google Chrome' },
  { match: 'steamwebhelper.exe', displayName: 'Steam' },
  { match: 'steam.exe', displayName: 'Steam' },
  { match: 'bandizip.exe', displayName: 'Bandizip' },
  { match: 'explorer.exe', displayName: '文件资源管理器' },
  { match: 'devenv.exe', displayName: 'Visual Studio' },
  { match: 'idea64.exe', displayName: 'IntelliJ IDEA' },
  { match: 'pycharm64.exe', displayName: 'PyCharm' },
  { match: 'cursor.exe', displayName: 'Cursor' },
  { match: 'obsidian.exe', displayName: 'Obsidian' },
  { match: 'notion.exe', displayName: 'Notion' },
  { match: 'wechat.exe', displayName: '微信' },
  { match: 'qq.exe', displayName: 'QQ' },
  { match: 'teams.exe', displayName: 'Microsoft Teams' },
  { match: 'telegram.exe', displayName: 'Telegram' }
]

const parseCommaSeparatedEnv = (value: string | undefined, fallback: string[]) => {
  if (!value?.trim()) {
    return fallback
  }

  const parsed = value
    .split(',')
    .map(item => item.trim())
    .filter(Boolean)

  return parsed.length > 0 ? parsed : fallback
}

const parseProcessDisplayNamePresetsEnv = (
  value: string | undefined,
  fallback: ProcessDisplayNamePreset[]
) => {
  if (!value?.trim()) {
    return fallback
  }

  const parsed = value
    .split(';')
    .map(item => item.trim())
    .filter(Boolean)
    .map((item) => {
      const separatorIndex = item.indexOf('=')
      if (separatorIndex <= 0 || separatorIndex === item.length - 1) {
        return null
      }

      const match = item.slice(0, separatorIndex).trim()
      const displayName = item.slice(separatorIndex + 1).trim()
      if (!match || !displayName) {
        return null
      }

      return { match, displayName }
    })
    .filter((item): item is ProcessDisplayNamePreset => item !== null)

  return parsed.length > 0 ? parsed : fallback
}

export const IGNORED_WINDOW_KEYWORDS = parseCommaSeparatedEnv(
  process.env.IGNORED_WINDOW_KEYWORDS,
  DEFAULT_IGNORED_WINDOW_KEYWORDS
)

export const PROCESS_DISPLAY_NAME_PRESETS = parseProcessDisplayNamePresetsEnv(
  process.env.PROCESS_DISPLAY_NAME_PRESETS,
  DEFAULT_PROCESS_DISPLAY_NAME_PRESETS
)

export const config = {
  port: process.env.PORT || 3000,
  auth: {
    username: process.env.AUTH_USERNAME || 'admin',
    password: process.env.AUTH_PASSWORD || 'password',
    secret: process.env.AUTH_SECRET || 'winupdate-neo-secret-key'
  },
  windows: {
    ignoredKeywords: IGNORED_WINDOW_KEYWORDS
  },
  screenTime: {
    processDisplayNamePresets: PROCESS_DISPLAY_NAME_PRESETS
  },
  // For file upload settings
  upload: {
    maxFileSize: 10 * 1024 * 1024, // 10MB
    allowedTypes: ['image/jpeg', 'image/png', 'image/webp', 'application/x-msdownload']
  }
}