/**
 * 主播绑定 - 前端工具（参考 Soul 创业实验：ref 捕获 + 登录后绑定）
 */

const STORAGE_KEY = "wanzhi_pending_streamer_ref"

export function getPendingStreamerRef(): string | null {
  if (typeof window === "undefined") return null
  try {
    const v = localStorage.getItem(STORAGE_KEY)
    return v && v.trim() ? v.trim() : null
  } catch {
    return null
  }
}

export function setPendingStreamerRef(ref: string): void {
  if (typeof window === "undefined") return
  try {
    if (ref && ref.trim()) localStorage.setItem(STORAGE_KEY, ref.trim())
    else localStorage.removeItem(STORAGE_KEY)
  } catch {}
}

export function clearPendingStreamerRef(): void {
  if (typeof window === "undefined") return
  try {
    localStorage.removeItem(STORAGE_KEY)
  } catch {}
}

/**
 * 调用绑定接口；成功后清除待绑定
 */
export async function bindStreamer(userId: string, ref: string): Promise<{ success: boolean; message?: string }> {
  if (!userId || !ref) return { success: false, message: "缺少 userId 或 ref" }
  try {
    const res = await fetch("/api/streamer/bind", {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ userId, ref }),
    })
    const json = await res.json().catch(() => ({}))
    if (json.success) clearPendingStreamerRef()
    return { success: !!json.success, message: json.message }
  } catch (e) {
    console.error("[streamer-bind] bindStreamer error:", e)
    return { success: false, message: "请求失败" }
  }
}