import type { AppConfig } from './types'

type RawAppConfig = AppConfig & {
  user?: Record<string, any>
}

let appConfig: RawAppConfig | null = null

export function setAppConfig(config: RawAppConfig) {
  appConfig = config || {}
  window.__APP_CONFIG__ = appConfig
}

export function getRawAppConfig() {
  return appConfig ?? window.__APP_CONFIG__ ?? null
}

export function getTenantConfig() {
  const rawConfig = getRawAppConfig()

  if (rawConfig?.user && typeof rawConfig.user === 'object') {
    return rawConfig.user
  }

  if (rawConfig && Object.keys(rawConfig).length > 0) {
    return rawConfig
  }

  return {}
}

export function getConfig<T = any>(key: string, fallback?: T): T {
  const config = getTenantConfig()
  const value = config?.[key]

  return (value ?? fallback ?? null) as T
}