import { queryOne } from "@/lib/db";
import { getServerSession } from "next-auth/next";
import { authOptions } from "@/app/api/auth/[...nextauth]/route";

export async function POST(request) {
  const session = await getServerSession(authOptions);

  if (!session) {
    return new Response(JSON.stringify({ error: "Unauthorized" }), {
      status: 401,
    });
  }

  try {
    const { name } = await request.json();
    if (!name) {
      return new Response(JSON.stringify({ error: "Team name is required" }), {
        status: 400,
      });
    }

    const result = await queryOne(
      "INSERT INTO teams (name, code) VALUES (?, ?)",
      [name, generateTeamCode()]
    );

    if (!result.insertId) {
      throw new Error("Failed to create team");
    }

    await queryOne("UPDATE users SET team_id = ? WHERE id = ?", [
      result.insertId,
      session.user.id,
    ]);

    return new Response(JSON.stringify({ teamId: result.insertId }), {
      status: 201,
    });
  } catch (error) {
    console.error("Team creation error:", error);
    return new Response(JSON.stringify({ error: "Failed to create team" }), {
      status: 500,
    });
  }
}

function generateTeamCode() {
  return Math.random().toString(36).substring(2, 8).toUpperCase();
}