import { NextResponse } from 'next/server';
import { getServerSession } from 'next-auth';
import { authOptions } from "@/app/api/auth/options";
import { prisma } from '@/lib/prisma';

// GET endpoint to get mission details including creator and missionUsers
export async function GET(
  request: Request,
  { params }: { params: Promise<{ missionId: string }> }
) {
  try {
    const session = await getServerSession(authOptions);
    if (!session?.user?.id) {
      return NextResponse.json({ error: 'Unauthorized' }, { status: 401 });
    }

    const { missionId } = await params;
    const userId = session.user.id;

    // Find mission and check access
    const mission = await prisma.mission.findFirst({
      where: {
        id: missionId,
        OR: [
          { creatorId: userId },
          { missionUsers: { some: { userId } } }
        ]
      },
      select: {
        id: true,
        name: true,
        creatorId: true,
        isClosed: true,
        creator: {
          select: {
            id: true,
            email: true
          }
        },
        missionUsers: {
          select: {
            id: true,
            role: true,
            userId: true,
            user: {
              select: {
                id: true,
                email: true
              }
            }
          }
        }
      }
    });

    if (!mission) {
      return NextResponse.json({ error: 'Mission not found or access denied' }, { status: 404 });
    }

    return NextResponse.json(mission);
  } catch (error: any) {
    console.error('Error fetching mission:', error);
    return NextResponse.json(
      { error: 'Failed to fetch mission', details: error.message },
      { status: 500 }
    );
  }
}