/**
 * GET /api/auth/me - Get current authenticated user
 */

import { NextRequest, NextResponse } from 'next/server';
import { requireAuth, sanitizeUser } from '@/app/lib/auth';
import { getUserBalance, getUserCompletedTasks, getUserBadges } from '@/app/lib/db/store';
import { UserProfile, ApiResponse } from '@/app/lib/types';

export async function GET(request: NextRequest) {
  try {
    // Authenticate user
    const user = requireAuth(request);

    // Get user statistics
    const pointsBalance = getUserBalance(user.id);
    const tasksCompleted = getUserCompletedTasks(user.id).length;
    const badgesCount = getUserBadges(user.id).length;

    // Build user profile
    const userProfile: UserProfile = {
      ...sanitizeUser(user),
      pointsBalance,
      tasksCompleted,
      badgesCount
    };

    return NextResponse.json<ApiResponse<UserProfile>>(
      {
        success: true,
        data: userProfile
      },
      { status: 200 }
    );
  } catch (error) {
    if (error instanceof Error && error.message === 'Unauthorized') {
      return NextResponse.json<ApiResponse>(
        {
          success: false,
          error: 'Unauthorized'
        },
        { status: 401 }
      );
    }

    console.error('Get current user error:', error);
    return NextResponse.json<ApiResponse>(
      {
        success: false,
        error: 'Internal server error'
      },
      { status: 500 }
    );
  }
}