import { apiPost } from "@/lib/api";
import { parseLevelLabel, type UserLevel } from "@/lib/user-level";

export type CustomUserInfo = {
  name: string;
  phone: string;
  identity: string;
  email?: string;
  levelLabel?: UserLevel;
  referralCode?: string;
};

export async function updateUserInfo(input: {
  name: string;
  phone: string;
  identity: string;
}): Promise<void> {
  await apiPost("/custom/update/info", {
    name: input.name,
    phone: input.phone,
    identity: input.identity,
  });
}

function pickString(v: unknown): string {
  return typeof v === "string" ? v.trim() : String(v ?? "").trim();
}

export async function fetchCustomUserInfo(): Promise<CustomUserInfo> {
  const raw = await apiPost<unknown>("/custom/info", {});
  const root = raw && typeof raw === "object" ? (raw as Record<string, unknown>) : {};
  const data =
    root.data && typeof root.data === "object" && root.data !== null
      ? (root.data as Record<string, unknown>)
      : root;

  const levelRaw = data.levelLabel ?? root.levelLabel;
  const levelLabel = parseLevelLabel(levelRaw) ?? undefined;

  const referralCode =
    pickString(data.referralCode ?? root.referralCode) || undefined;

  return {
    name: pickString(data.name ?? data.nickname ?? root.name ?? root.nickname),
    phone: pickString(data.phone ?? data.mobile ?? root.phone ?? root.mobile),
    identity: pickString(data.identity ?? data.idCard ?? root.identity ?? root.idCard),
    email: pickString(data.email ?? data.loginName ?? root.email ?? root.loginName) || undefined,
    levelLabel,
    referralCode,
  };
}

/** 静默拉取用户信息，接口失败时返回 null，避免阻断页面渲染 */
export async function tryFetchCustomUserInfo(): Promise<CustomUserInfo | null> {
  try {
    return await fetchCustomUserInfo();
  } catch {
    return null;
  }
}