import { NextRequest, NextResponse } from "next/server"
import { AUTH_COOKIE_MAX_AGE_SECONDS, AUTH_COOKIE_NAME } from "@/lib/auth-cookie"

export const runtime = "nodejs"
export const dynamic = "force-dynamic"

const readerApiOrigin = (process.env.READER_API_ORIGIN || "http://localhost:8000").replace(/\/+$/, "")

type MobileLoginResponse = {
  accessToken: string
  expiresIn?: number
  user: {
    id: string
    email?: string | null
    name?: string | null
    image?: string | null
    role?: string | null
  }
}

export async function POST(req: NextRequest) {
  try {
    const body = await req.json()
    const googleIdToken = String(body?.googleIdToken || "").trim()

    if (!googleIdToken) {
      return NextResponse.json({ detail: "googleIdToken is required" }, { status: 400 })
    }

    const upstream = await fetch(`${readerApiOrigin}/api/auth/mobile-login`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ googleIdToken }),
      cache: "no-store",
      signal: AbortSignal.timeout(10000),
    })

    if (!upstream.ok) {
      const message = await upstream.text()
      return NextResponse.json({ detail: message || "Authentication failed" }, { status: upstream.status })
    }

    const data = (await upstream.json()) as MobileLoginResponse

    const response = NextResponse.json(
      {
        user: {
          id: data.user.id,
          email: data.user.email || null,
          name: data.user.name || null,
          image: data.user.image || null,
          role: data.user.role || "USER",
        },
      },
      { status: 200 },
    )

    response.cookies.set(AUTH_COOKIE_NAME, data.accessToken, {
      httpOnly: true,
      secure: process.env.NODE_ENV === "production",
      sameSite: "lax",
      path: "/",
      maxAge: data.expiresIn || AUTH_COOKIE_MAX_AGE_SECONDS,
    })

    return response
  } catch (error) {
    console.error("/api/auth/login failed", error)
    return NextResponse.json({ detail: "Internal Server Error" }, { status: 500 })
  }
}