import { NextRequest, NextResponse } from "next/server";
import { getSession } from "auth/server";

const getBackendUrl = () => {
  if (process.env.BACKEND_API_URL) return process.env.BACKEND_API_URL;
  const spaceId = process.env.SPACE_ID || "";
  if (spaceId.startsWith("shyota/")) {
    return "https://shyota-claude-code-backend.hf.space";
  }
  return "https://augment17-claude-code-backend.hf.space";
};

export async function GET(req: NextRequest) {
  const session = await getSession();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const backendUrl = getBackendUrl();
  const apiKey = process.env.BACKEND_API_KEY || "";
  
  try {
    const res = await fetch(`${backendUrl}/api/eternity/list`, {
      headers: {
        "Authorization": `Bearer ${apiKey}`,
      },
      cache: "no-store",
    });
    
    if (!res.ok) {
      const txt = await res.text();
      return NextResponse.json({ error: txt }, { status: res.status });
    }
    
    const data = await res.json();
    return NextResponse.json(data);
  } catch (err: any) {
    return NextResponse.json({ error: err.message }, { status: 500 });
  }
}

export async function POST(req: NextRequest) {
  const session = await getSession();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }
  try {
    const body = await req.json();
    const { action, ...payload } = body;
    
    const backendUrl = getBackendUrl();
    const apiKey = process.env.BACKEND_API_KEY || "";
    
    let targetPath = "";
    if (action === "toggle") {
      targetPath = "/api/eternity/toggle";
    } else if (action === "set-priority") {
      targetPath = "/api/eternity/set-priority";
    } else if (action === "init") {
      targetPath = "/api/eternity/init";
    } else {
      return NextResponse.json({ error: "Invalid action" }, { status: 400 });
    }
    
    const res = await fetch(`${backendUrl}${targetPath}`, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        "Authorization": `Bearer ${apiKey}`,
      },
      body: JSON.stringify(payload),
    });
    
    if (!res.ok) {
      const txt = await res.text();
      return NextResponse.json({ error: txt }, { status: res.status });
    }
    
    const data = await res.json();
    return NextResponse.json(data);
  } catch (err: any) {
    return NextResponse.json({ error: err.message }, { status: 400 });
  }
}