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


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


namespace GameServer;

public class NotifyInvitePartySendHandler
{
    public async Task recvInvitePartySend(ServerMessage.Types.InvitePartyNoti notify)
    {
        var player_manager = GameServerApp.getServerLogic().getPlayerManager();
        ArgumentNullException.ThrowIfNull(player_manager);

        // 0. client login 체크
        if (!player_manager.tryGetUserByPrimaryKey(notify.InviteUserGuid, out var player))
        {
            
            // 0-1. login_cache 가져오기 
            var login_cache = await PartyHelper.getOtherUserLoginCache(notify.InviteUserGuid);
            if (null == login_cache)
            {
                await sendMessageToPartyLeader(notify, ServerErrorCode.UserNotLogin);
                return;
            }
            
            // 0-2. 해당 서버로 mq 날리기
            var server_message = new ServerMessage
            {
                InvitePartyNoti = new()
                {
                    InvitePartyLeaderGuid = notify.InvitePartyLeaderGuid,
                    InvitePartyGuid = notify.InvitePartyGuid,
                    InviteUserGuid = notify.InviteUserGuid
                }
            };
            
            var rabbit_mq = GameServerApp.getServerLogic().getRabbitMqConnector() as RabbitMqConnector;
            NullReferenceCheckHelper.throwIfNull(rabbit_mq, () => $"rabbit_mq is null !!!");
            rabbit_mq.SendMessage(login_cache.CurrentServer, server_message);
            return;
        }

        // 1. client party 가입 체크
        var result = await checkJoinPartyCondition(player);
        if (result.isFail())
        {
            await sendMessageToPartyLeader(notify, result.ErrorCode);
            return;
        }
        
        // 2. recv 저장
        var party_recv_action = player.getEntityAction<PartyInvitePartyRecvAction>();
        ArgumentNullException.ThrowIfNull(party_recv_action);

        result = await party_recv_action.addInvitePartyRecv(notify.InvitePartyGuid);
        if (result.isFail())
        {
            await sendMessageToPartyLeader(notify, ServerErrorCode.FailToSendInviteMember);
            return;
        }
        
        // 2. client 전달
        var client_message = new ClientToGame();
        client_message.Message = new();
        client_message.Message.InvitePartyNoti = new();
        client_message.Message.InvitePartyNoti.InviteHostUserGuid = notify.InvitePartyLeaderGuid;
        client_message.Message.InvitePartyNoti.InviteHostUserNickname =
            await PartyHelper.getUserNicknameFromGuid(notify.InvitePartyLeaderGuid);
        
        PartyHelper.sendToClient(client_message, player.getHostId());
    }

    private async Task sendMessageToPartyLeader(ServerMessage.Types.InvitePartyNoti notify, ServerErrorCode err_code)
    {
        var login_cache = await PartyHelper.getOtherUserLoginCache(notify.InvitePartyLeaderGuid);
        if (null == login_cache) return;

        var message = new ServerMessage
        {
            NtfInvitePartyRecvResult = new ServerMessage.Types.GS2C_NTF_PARTY_INVITE_RESULT()
            {
                InvitePartyGuid = notify.InvitePartyGuid,
                InviteHostGuid = notify.InvitePartyLeaderGuid,
                InviteUserGuid = notify.InviteUserGuid,
                ErrorCode = err_code
            }
        };

        var rabbit_mq = GameServerApp.getServerLogic().getRabbitMqConnector() as RabbitMqConnector;
        NullReferenceCheckHelper.throwIfNull(rabbit_mq, () => $"rabbit_mq is null !!!");
        rabbit_mq.SendMessage(login_cache.CurrentServer, message);
    }

    private async Task<Result> checkJoinPartyCondition(Player player)
    {
        var result = new Result();
        
        var personal_party_action = player.getEntityAction<PersonalPartyAction>();
        ArgumentNullException.ThrowIfNull(personal_party_action);

        var party_guid = personal_party_action.getPersonalParty()?.getPartyGuid();
        if (string.IsNullOrEmpty(party_guid)) return result;
        
        // 1. party 정보 획득
        var global_party = GameServerApp.getServerLogic().findGlobalEntity<GlobalParty>();
        ArgumentNullException.ThrowIfNull(global_party);
        var party = global_party.getParty(party_guid);
        if (null == party) return result;
        
        // 2. 파티원 수 체크
        var party_member_action = party.getEntityAction<GlobalPartyDetailMemberAction>();
        ArgumentNullException.ThrowIfNull(party_member_action);

        var member_count = party_member_action.getMemberCount();
        if (member_count < 2) return result;
        
        result.setFail(ServerErrorCode.AlreadyPartyMember, $"Already Party Member !!! {player.getUserGuid()} / {party_guid}");

        return await Task.FromResult(result);
    }
}