export function getServerBaseUrl(): string {
  const origin = window.location.origin
  const publicBase = import.meta.env.VITE_APP_PUBLIC_BASE || '/'

  // 拼接时去掉 publicBase 开头和结尾的斜杠（只保留中间路径）
  const cleanBase = publicBase.replace(/^\/+|\/+$/g, '')

  return cleanBase ? `${origin}/${cleanBase}` : origin
}

export async function getDbConfigs(): Promise<Record<string, any> | null> {
  const serverBaseUrl = getServerBaseUrl()

  try {
    const response = await fetch(`${serverBaseUrl}/static/db.json`)
    if (!response.ok) {
      console.error('Failed to fetch db.json:', response.status)
      return null
    }

    const data: Record<string, any> = await response.json()
    return data
  }
  catch (error) {
    console.error('Error fetching db.json:', error)
    return null
  }
}