using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;

using ServerCore;
using ServerBase;
using ServerCommon;

using static ClientToGameReq.Types;
using static ClientToGameRes.Types;



namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.C2GS_REQ_HELP_CRAFT), typeof(HelpCraftPacketHandler), typeof(GameLoginListener))]
public class HelpCraftPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_HELP_CRAFT(Player player, Result result, List<Item>? add_changed_items = null, int helpCount = 0)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.AckHelpCraft = new GS2C_ACK_HELP_CRAFT();

        if (result.isSuccess())
        {
            ArgumentNullReferenceCheckHelper.throwIfNull(add_changed_items, () => $"add_changed_items is null !!! - Player:{player.toBasicString()}");

            ack_packet.Response.AckHelpCraft.Items.AddRange(add_changed_items.Select(info => info.toItemData4Client()));
            ack_packet.Response.AckHelpCraft.HelpCount = helpCount;
        }

        if (false == GameServerApp.getServerLogic().onSendPacket(player, ack_packet))
        {
            return false;
        }

        return true;
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, IMessage recvMessage)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var entity_player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(entity_player, () => "player is null !!!");

        var craft_help_action = entity_player.getEntityAction<CraftHelpAction>();
        if (craft_help_action == null)
        {
            err_msg = $"Failed to get craft action : {nameof(CraftHelpAction)}";
            result.setFail(ServerErrorCode.EntityActionNotFound, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_HELP_CRAFT(entity_player, result);
            return result;
        }

        var game_msg = recvMessage as ClientToGame;
        if (game_msg == null)
        {
            err_msg = $"Failed to cast ClientToGame !!! : {nameof(ClientToGame.Request.ReqHelpCraft)}";
            result.setFail(ServerErrorCode.ClassTypeCastIsNull, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_HELP_CRAFT(entity_player, result);
            return result;
        }

        var request = game_msg.Request.ReqHelpCraft;

        result = await craft_help_action.CraftHelpProcess(request.AnchorGuid);
        if (result.isFail())
        {
            return result;
        }

        return result;
    }

    public override async Task onProcessPacketException(ISession entityWithSession, IMessage recvMessage
                               , Result errorResult)
    {
        await Task.CompletedTask;

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!! - {entityWithSession.toBasicString()}");

        send_S2C_ACK_HELP_CRAFT(player, errorResult);
    }
}