/**
 * Admin API 地址（方案 A）
 * - 优先 VITE_API_ADMIN_URL（.env.production / .env.nanafa / .env.ideship 切换）
 * - 未配置且开发：相对路径走 Vite 代理
 * - 未配置且生产构建：默认 https://api.ideship.com/admin
 */

function normalizeBase(base: string): string {
  return base.trim().replace(/\/$/, '')
}

function ensureLeadingSlash(path: string): string {
  return path.startsWith('/') ? path : `/${path}`
}

const DEFAULT_PROD_ADMIN = 'https://api.ideship.com/admin'
const DEFAULT_TEST_ADMIN = 'http://api.nanafa.com/admin'

function configuredAdminBase(): string | undefined {
  const override = import.meta.env.VITE_API_ADMIN_URL as string | undefined
  if (override?.trim()) return normalizeBase(override)
  return undefined
}

function prodAdminBase(): string {
  return configuredAdminBase() ?? DEFAULT_PROD_ADMIN
}

/** 浏览器请求 Admin API（OpenAPI.BASE 或 omsUrl/orderUrl 等） */
export function resolveAdminApiPath(path: string): string {
  const p = ensureLeadingSlash(path)
  const configured = configuredAdminBase()
  if (configured) {
    return `${configured}${p}`
  }
  if (!import.meta.env.DEV) {
    return `${DEFAULT_PROD_ADMIN}${p}`
  }
  return p
}

export function resolveOpenApiBase(): string {
  const configured = configuredAdminBase()
  if (configured) return configured
  if (!import.meta.env.DEV) {
    return DEFAULT_PROD_ADMIN
  }
  return ''
}

/** 桌面 Agent 等直连 Admin 网关 */
export function resolveDirectAdminApiUrl(): string {
  const configured = configuredAdminBase()
  if (configured) return configured
  if (import.meta.env.DEV) {
    return DEFAULT_TEST_ADMIN
  }
  return DEFAULT_PROD_ADMIN
}

/** 静态资源（uploads）在 Admin wwwroot，须带 `/admin`。 */
export function resolveAdminAssetOrigin(): string {
  const override = import.meta.env.VITE_API_ASSET_ORIGIN as string | undefined
  if (override?.trim()) {
    return normalizeBase(override)
  }
  const configured = configuredAdminBase()
  if (configured) return configured
  if (!import.meta.env.DEV) {
    return DEFAULT_PROD_ADMIN
  }
  return ''
}