/** 采集插件读取的站点根地址（与 OMS / WMS 约定一致） */
export const RAPID_PACKAGE_HOST_COOKIE = 'RAPID_PACKAGE_HOST'
/** 插件确认页默认仓库：JSON `{ id, name }` */
export const RAPID_PACKAGE_WAREHOUSE_COOKIE = 'RAPID_PACKAGE_WAREHOUSE'
/** 管理端代采客户：JSON `{ id, name }` */
export const RAPID_PACKAGE_CUSTOMER_COOKIE = 'RAPID_PACKAGE_CUSTOMER'

function writeCookie(name: string, value: string): void {
  if (typeof document === 'undefined') return
  const protocol = window.location.protocol
  const isHttps = protocol === 'https:'
  const parts = [
    `${encodeURIComponent(name)}=${encodeURIComponent(value)}`,
    'path=/',
    `expires=${new Date(Date.now() + 999 * 864e5).toUTCString()}`,
  ]
  if (isHttps) {
    parts.push('Secure', 'SameSite=None')
  }
  document.cookie = parts.join('; ')
}

function readJsonCookie(name: string): { id: number; name: string } | null {
  if (typeof window === 'undefined') return null
  try {
    const fromLs = window.localStorage?.getItem(name)
    const raw =
      fromLs ||
      document.cookie
        .split(';')
        .map((s) => s.trim())
        .find((s) => s.startsWith(`${name}=`))
        ?.slice(name.length + 1)
    if (!raw) return null
    const parsed = JSON.parse(decodeURIComponent(raw))
    const id = Number(parsed?.id)
    if (!id) return null
    return { id, name: String(parsed?.name || id) }
  } catch {
    return null
  }
}

/**
 * 写入 RAPID_PACKAGE_HOST，供浏览器扩展识别当前 OMS 域名。
 */
export function setRapidPackageHostCookie(): void {
  if (typeof window === 'undefined') return
  const url = `${window.location.protocol}//${window.location.host}`
  try {
    writeCookie(RAPID_PACKAGE_HOST_COOKIE, url)
  } catch (e) {
    console.warn('[rapidPackagePluginHost] cookie set failed', e)
  }
  try {
    window.localStorage?.setItem(RAPID_PACKAGE_HOST_COOKIE, url)
  } catch {
    /* 隐私模式等 */
  }
}

/** 写入当前选用的仓库，供确认页读取 */
export function setRapidPackageWarehouseCookie(warehouse: { id: number; name: string } | null): void {
  if (typeof window === 'undefined') return
  if (!warehouse?.id) {
    try {
      writeCookie(RAPID_PACKAGE_WAREHOUSE_COOKIE, '')
      window.localStorage?.removeItem(RAPID_PACKAGE_WAREHOUSE_COOKIE)
    } catch {
      /* ignore */
    }
    return
  }
  const raw = JSON.stringify({ id: warehouse.id, name: warehouse.name || String(warehouse.id) })
  try {
    writeCookie(RAPID_PACKAGE_WAREHOUSE_COOKIE, raw)
    window.localStorage?.setItem(RAPID_PACKAGE_WAREHOUSE_COOKIE, raw)
  } catch (e) {
    console.warn('[rapidPackagePluginHost] warehouse cookie set failed', e)
  }
}

export function readRapidPackageWarehouseCookie(): { id: number; name: string } | null {
  return readJsonCookie(RAPID_PACKAGE_WAREHOUSE_COOKIE)
}

/** 管理端写入当前代采客户，供插件草稿/查重携带 customerId */
export function setRapidPackageCustomerCookie(customer: { id: number; name: string } | null): void {
  if (typeof window === 'undefined') return
  if (!customer?.id) {
    try {
      writeCookie(RAPID_PACKAGE_CUSTOMER_COOKIE, '')
      window.localStorage?.removeItem(RAPID_PACKAGE_CUSTOMER_COOKIE)
    } catch {
      /* ignore */
    }
    return
  }
  const raw = JSON.stringify({ id: customer.id, name: customer.name || String(customer.id) })
  try {
    writeCookie(RAPID_PACKAGE_CUSTOMER_COOKIE, raw)
    window.localStorage?.setItem(RAPID_PACKAGE_CUSTOMER_COOKIE, raw)
  } catch (e) {
    console.warn('[rapidPackagePluginHost] customer cookie set failed', e)
  }
}

export function readRapidPackageCustomerCookie(): { id: number; name: string } | null {
  return readJsonCookie(RAPID_PACKAGE_CUSTOMER_COOKIE)
}