// API基础地址
const API_BASE = import.meta.env.VITE_API_BASE || ''

let corpCode = ''

export function setCorpCode(value) {
  corpCode = value ? String(value) : ''
}

export function getCorpCode() {
  return corpCode
}

function isAbsoluteUrl(url) {
  return /^https?:\/\//i.test(url)
}

// 生产环境后端路径不带 /api/ 前缀，这里做兼容处理
export function getApiUrl(url) {
  if (!url) return API_BASE
  if (isAbsoluteUrl(url)) return url
  const cleanUrl = url.replace(/^\/api\//, '/')
  return API_BASE + cleanUrl
}

export function withCorpCode(url) {
  const fullUrl = getApiUrl(url)
  if (!corpCode) return fullUrl
  try {
    const u = new URL(fullUrl, window.location.origin)
    if (!u.searchParams.has('corpCode')) u.searchParams.append('corpCode', corpCode)
    return u.toString()
  } catch {
    const sep = fullUrl.includes('?') ? '&' : '?'
    return `${fullUrl}${sep}corpCode=${encodeURIComponent(corpCode)}`
  }
}

export function apiFetch(url, options) {
  return fetch(withCorpCode(url), options)
}

export default API_BASE