import { getToken } from "next-auth/jwt";
import { query, queryOne, run } from "@/lib/db";
import { nanoid } from "nanoid";

export async function POST(request) {
  try {
    // Get user token from session
    const token = await getToken({
      req: request,
      secret:
        process.env.NEXTAUTH_SECRET ||
        "your-fallback-secret-should-be-at-least-32-chars",
    });

    if (!token) {
      return Response.json({ error: "Invalid session" }, { status: 401 });
    }

    // Extract user ID from the token
    const userId = token.id;
    if (!userId) {
      return Response.json(
        { error: "Invalid user information in session" },
        { status: 401 }
      );
    }

    // Parse request body
    const body = await request.json();
    const { name } = body;

    if (!name || name.trim() === "") {
      return Response.json({ error: "Team name is required" }, { status: 400 });
    }

    // Generate a unique team code
    const code = nanoid(6).toUpperCase();

    // Create the team - updated schema to match actual database (no created_by column)
    await run(`
      CREATE TABLE IF NOT EXISTS teams (
        id INTEGER PRIMARY KEY AUTOINCREMENT,
        name TEXT NOT NULL,
        code TEXT UNIQUE NOT NULL,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
      )
    `);

    // Insert team without created_by field
    const result = await run("INSERT INTO teams (name, code) VALUES (?, ?)", [
      name,
      code,
    ]);

    const teamId = result.lastID;

    // Update the user's team_id
    await run("UPDATE users SET team_id = ? WHERE id = ?", [teamId, userId]);

    return Response.json({ success: true, teamId, code });
  } catch (error) {
    console.error("Create team error:", error);
    return Response.json(
      { error: "Failed to create team: " + error.message },
      { status: 500 }
    );
  }
}