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


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


namespace GameServer.PacketHandler;


[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.BanPartyMemberReq), typeof(BanPartyMemberPacketHandler), typeof(GameLoginListener))]
public class BanPartyMemberPacketHandler : PacketRecvHandler
{
    private static void send_S2C_ACK_BAN_PARTY_MEMBER(Player? owner, Result result)
    {
        ArgumentNullReferenceCheckHelper.throwIfNull(owner, () => $"owner is null !!!");

        var ack_packet = new ClientToGame
        {
            Response = new ClientToGameRes
            {
                ErrorCode = result.ErrorCode,
                BanPartyMemberRes = new()
            }
        };

        GameServerApp.getServerLogic().onSendPacket(owner, ack_packet);
    }

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

        var log_invokers = new List<ILogInvoker>(3);
        
        var entity_player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(entity_player, () => $"entity_player is null !!!");

        // 1. 기본 정보 체크
        var request = (recvMessage as ClientToGame)?.Request.BanPartyMemberReq;
        if (null == request)
        {
            err_msg = $"Failed to get request type !!! : {nameof(ClientToGame.Request.BanPartyMemberReq)}";
            result.setFail(ServerErrorCode.InvalidArgument, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_BAN_PARTY_MEMBER(entity_player, result);
            return result;
        }

        // 2. 소속 파티 Guid 조회
        var personal_party_action = entity_player.getEntityAction<PersonalPartyAction>();
        NullReferenceCheckHelper.throwIfNull(personal_party_action, () => $"personal_party_action is null !!!");

        var personal_party = personal_party_action.getPersonalParty();
        if (null == personal_party)
        {
            err_msg = $"Failed to get party info !!! - not party member - {entity_player.getUserGuid()}";
            result.setFail(ServerErrorCode.NotParty, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_BAN_PARTY_MEMBER(entity_player, result);
            return result;
        }

        var global_party = GameServerApp.getServerLogic().findGlobalEntity<GlobalParty>();
        NullReferenceCheckHelper.throwIfNull(global_party, () => $"global_party is null !!!");

        var party = global_party.getParty(personal_party.getPartyGuid());
        NullReferenceCheckHelper.throwIfNull(party, () => $"party is null !!!");
        
        var party_log_data = PartyBusinessLogHelper.toPartyLogData(party.PartyGuid, false);
        party_log_data.PartyMemberCount -= 1;
        var party_business_log = new PartyBusinessLog(party_log_data);
        log_invokers.Add(party_business_log);

        // 3. 파티장 체크
        var party_action = party.getEntityAction<GlobalPartyDetailAction>();
        NullReferenceCheckHelper.throwIfNull(party_action, () => $"party_action is null !!!");

        var is_leader = party_action.isLeader(entity_player.getUserGuid());
        if (!is_leader)
        {
            err_msg = $"Failed to ban party member !!! : not party leader - {entity_player.getUserGuid()}";
            result.setFail(ServerErrorCode.NotPartyLeader, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_BAN_PARTY_MEMBER(entity_player, result);
            return result;
        }
        
        // 4. 파티원 체크
        var party_member_action = party.getEntityAction<GlobalPartyDetailMemberAction>();
        NullReferenceCheckHelper.throwIfNull(party_member_action, () => $"party_member_action is null !!!");

        var is_member = party_member_action.isPartyMember(request.PartyMemberUserGuid);
        if (false == is_member)
        {
            err_msg = $"Failed to ban party member !!! : not party member - {request.PartyMemberUserGuid}";
            result.setFail(ServerErrorCode.NotPartyMember, err_msg);
            Log.getLogger().error(err_msg);

            send_S2C_ACK_BAN_PARTY_MEMBER(entity_player, result);
            return result;
        }
        
        var party_member_log_data = PartyBusinessLogHelper.toPartyMemberLogData(party.PartyGuid, request.PartyMemberUserGuid, PartyMemberActionType.BanParty);
        var party_member_business_log = new PartyMemberBusinessLog(party_member_log_data);
        log_invokers.Add(party_member_business_log);

        // 5. 파티원 탈퇴 처리
        var global_party_action = global_party.getEntityAction<GlobalPartyAction>();
        NullReferenceCheckHelper.throwIfNull(global_party_action, () => $"server_logic is null !!!");

        result = await global_party_action.leaveParty(party.PartyGuid, request.PartyMemberUserGuid, BoolType.True);
        if (result.isFail())
        {
            send_S2C_ACK_BAN_PARTY_MEMBER(entity_player, result);
            return result;
        }
        
        // 6. 해당 파티원 ban 알림
        var message = new ServerMessage();
        message.BanPartyNoti = new();
        message.BanPartyNoti.PartyGuid = party.PartyGuid;
        message.BanPartyNoti.BanMemberGuid = request.PartyMemberUserGuid;

        await PartyHelper.sendToServerByTargetClient(request.PartyMemberUserGuid, message);
        
        // 7. Business Log 기록
        BusinessLogger.collectLogs(new LogActionEx(LogActionType.BanParty), entity_player, log_invokers);
        
        return result;
    }
}