import { NextRequest, NextResponse } from "next/server";
import { postSalonApi } from "@/app/lib/salonApi";
import { COOKIE_NAME } from "@/app/lib/auth-cookie";

function getUserIdFromCookie(request: NextRequest): string | null {
  const cookie = request.cookies.get(COOKIE_NAME)?.value;
  if (!cookie) return null;
  try {
    const payload = JSON.parse(Buffer.from(cookie, "base64url").toString("utf-8"));
    return payload?.userId ?? null;
  } catch {
    return null;
  }
}

export async function POST(request: NextRequest) {
  try {
    const userId = getUserIdFromCookie(request);
    if (!userId) {
      return NextResponse.json({ ok: false, error: "请先登录" }, { status: 401 });
    }
    const body = await request.json();
    const formData = body && typeof body === "object" ? body : {};

    const record = {
      user_id: userId,
      nickname: formData.nickname || "",
      occupation: formData.profession || "",
      reason: formData.intro || "",
      single: formData.single || "",
      wechatId: formData.wechat || "",
      gender: formData.gender || "",
      education: formData.education || "",
      gradYear: formData.graduationYear || "",
      phone: formData.phone || "",
      media: formData.media || "",
    };

    const { status, data } = await postSalonApi(request, "/api/salon/join", record);
    if (status >= 500) {
      const payload = typeof data === "object" && data !== null ? (data as Record<string, unknown>) : {};
      return NextResponse.json(
        { ok: false, error: (payload.detail as string) || (payload.error as string) || "提交失败" },
        { status: 503 }
      );
    }
    if (status >= 400) {
      return NextResponse.json(data, { status });
    }
    const payload = typeof data === "object" && data !== null ? (data as Record<string, unknown>) : {};
    return NextResponse.json({ ok: true, user_id: payload.user_id ?? userId });
  } catch (e) {
    const msg = e instanceof Error ? e.message : String(e);
    console.error("Join API error:", e);
    return NextResponse.json(
      { ok: false, error: `提交失败: ${msg}` },
      { status: 500 }
    );
  }
}