continuity/Server/PacketHandlers/CharacterDeletionHandler.cs

using Microsoft.EntityFrameworkCore;
using NetCoreServer;
using Server.DB;
using Wonderking.Packets.Incoming;
using Wonderking.Packets.Outgoing;

namespace Server.PacketHandlers;

public class CharacterDeletionHandler : IPacketHandler<CharacterDeletePacket>
{
    private readonly WonderkingContext _wonderkingContext;

    public CharacterDeletionHandler(WonderkingContext wonderkingContext)
    {
        _wonderkingContext = wonderkingContext;
    }

    public async Task HandleAsync(CharacterDeletePacket packet, TcpSession session)
    {
        if (session is not AuthSession authSession)
        {
            session.Disconnect();
            return;
        }

        var character = await _wonderkingContext.Characters.FirstOrDefaultAsync(x => x.Name == packet.Name &&
                x.Account.Id == authSession.AccountId)
            .ConfigureAwait(true);
        var response = new CharacterDeleteResponsePacket { IsDeleted = 0 };
        if (character == null)
        {
            await authSession.SendAsync(response).ConfigureAwait(false);
            return;
        }

        _wonderkingContext.Characters.Remove(character);
        await _wonderkingContext.SaveChangesAsync().ConfigureAwait(false);

        await authSession.SendAsync(response).ConfigureAwait(false);
    }
}