import { query, queryOne, run } from '../../../../lib/db';
import { getServerSession } from 'next-auth/next';
import { authOptions } from '../../auth/[...nextauth]/route';
import { nanoid } from 'nanoid';

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

        if (!session) {
            return Response.json({ success: false, error: 'Unauthorised-tc' }, { status: 401 });
        }

        const { name, userId } = await request.json();

        if (!name || name.trim() === '') {
            return Response.json({ success: false, error: 'Team name is required' });
        }

        // Verify the requesting user matches the userId
        if (session.user.id !== userId) {
            return Response.json({ success: false, error: 'User ID mismatch' }, { status: 403 });
        }

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

        // Insert the new team
        const result = await run(
            'INSERT INTO teams (name, code, created_by) VALUES (?, ?, ?)',
            [name, teamCode, userId]
        );

        if (!result || !result.lastID) {
            return Response.json({ success: false, error: 'Failed to create team' });
        }

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

        return Response.json({
            success: true,
            teamId: result.lastID,
            teamCode
        });
    } catch (error) {
        console.error('Create team error:', error);
        return Response.json({
            success: false,
            error: 'Failed to create team: ' + error.message
        });
    }
}