#include "Flatline.h"
#include "Flatline_Server.h"
#include <Windows.h>

//I hereby apologize for the uglyness of the below code. 
//It was never intended to be "final" code, much less shared with anyone

int total_players = 0;
uint16_t max_connections = MAX_CONNECTIONS;

player_info* FLrServer_AddPlayer(int ip, char* name, bool is_server, bool is_bot) {
	flatline_packet new_char = {0};
	CharacterObject* Char;
	uint32_t player_slot = 0;
	int playerlist_slot = 0;
	
	if(is_server || total_players < max_connections) {
		
		int i = 0;
		int k = 0;

		//Skip for the host
		if(!is_server)
		{
			char* zero = strchr(name, 0);
			playerlist_slot = FLr_FindEmptyListSlot();

			total_players++;

			//checks to see if a name exists or not
			//then appends [#] on the end of it if it does
			//May be buggy, come back to this.
			if(zero - name > 28) zero = name + 28; 
			for(i = 0; i < max_connections; i++) {
				if(PlayerList[i] != 0 && !strcmp(name, PlayerList[i]->name)) {
					k++;				
					sprintf(zero, "[%i]", k);
					i = 0;
				}
			}
		}
		
		new_char.new_player.Playernumber = playerlist_slot; 

		//Set up a new Character structure to be spawned as the new player.
		//Can this code be surrounded with if(!is_server){}?
		Char = &new_char.new_player.Character;
		memset(Char, 0, sizeof(CharacterObject));
		Char->Header.Type = 'CHAR';
		sprintf(Char->OSD.Name,"%s",name);
		sprintf(Char->OSD.Class, "%s", "konoko_generic");
		if(is_bot) {
			Char->OSD.MeleeID = 22;
			Char->OSD.JobID = 1;
			Char->OSD.MinimalAlertLevel = 4;
			Char->OSD.InvestigatingAlertLevel = 4;
			Char->OSD.InitialAlertLevel = 4;
			Char->OSD.StartJobAlertLevel = 4;
		}
		else if( !is_server )
		{
			Char->Header.Position.X = PlayerList[0]->Chr->Position.X;
			Char->Header.Position.Y = PlayerList[0]->Chr->Position.Y;
			Char->Header.Position.Z = PlayerList[0]->Chr->Position.Z;
		}
		
		//TMrInstance_GetDataPtr('ONCC', "striker_easy_1", PlayerList[playerlist_slot]->Chr->ONCC);

		new_char.id = NEW_PLAYER;
		if(!is_server) { 
			ONrGameState_NewCharacter(Char, NULL, NULL, &(player_slot));
			//move this to a set up characters function...
			if(!is_bot) ONgGameState->CharacterStorage[player_slot].charType = 0;

			PlayerList[playerlist_slot] = Players+player_slot;
			PlayerList[playerlist_slot]->spawnnumber = player_slot;
			PlayerList[playerlist_slot]->Chr = &(ONgGameState->CharacterStorage)[player_slot];
			//PlayerList[playerlist_slot]->Chr->Flags = chr_dontaim | chr_unkillable; //&= 0xFFBFFFFF; //WTF
			if(!is_bot) PlayerList[playerlist_slot]->Chr->Flags &= 0xFFBFFFFF; //WTF, magic number. 
			sprintf_s(PlayerList[playerlist_slot]->Chr->Name, 32, "%s", name);		
			sprintf_s(PlayerList[playerlist_slot]->name, 32, "%s", name);		
			UDPServer_SendToAll( (char*)&new_char, sizeof(new_player) + FLATLINE_HEADER );
			
		}
		else {
			PlayerList[0] = Players;
			PlayerList[0]->Chr = (Character *)(((GameState * )(ONgGameState))->CharacterStorage);
		}

		//add player to list
		
		PlayerList[playerlist_slot]->ip = ip;
		PlayerList[playerlist_slot]->list_slot = playerlist_slot;
		sprintf_s(PlayerList[playerlist_slot]->name, 32, "%s", name);		
		
		MultiplayerStatus.PleaseUpdateAllPlayers = 1;

		return &Players[player_slot];
	}
	return (player_info*)(-1);
}

void FLrServer_Initialize(){
	FLrServer_AddPlayer(inet_addr("127.0.0.1"), "host", 1, 0);
}

//UDPServer_SendToAll
//Sends a packet to all the clients currently connected.
//Returns the number of players sent to.
int UDPServer_SendToAll(void* packet, int size) {
	int j;
	int players = 0;
	sockaddr_in address;
	memset(&address, 0, sizeof(sockaddr_in)); 
	address.sin_family = AF_INET;
	address.sin_addr.s_addr = htonl(INADDR_ANY);
	address.sin_port = htons(27777);
	for(j = 0; j < max_connections; j++) {
		if (PlayerList[j] != 0 && PlayerList[j]->ip && (PlayerList[j]->ip != inet_addr("127.0.0.1"))) {
			int sent_bytes;
			address.sin_addr.s_addr = htonl(PlayerList[j]->ip);//*((struct in_addr*)(int*)&(Players[j].ip));		
			sent_bytes = NetUDPServer_Send((sockaddr *) &address, (char*)packet, size);
			if(sent_bytes == SOCKET_ERROR) NetCatchError();
			else players++;
		}
	}
	return players;
}

//FLsPublic_Event
//Sends an event (door opening, player disconnecting, etc) to all players
//Always make sure you send a pointer to this, even if it is just one arg. ;).
//If it is void the double door in State crashes. Probably stack corruption,
//I'm not sure exactly why.
//So we return 0 to stop that.
int FLsPublic_Event( const unsigned int eventIndex, const int * args )
{
	int numArgs = FLrEvent_GetNumArgs( eventIndex );
	int ret;
	flatline_packet eventPacket = {0};
	eventPacket.id = FLATLINE_EVENT;
	eventPacket.flatline_event.event_index = eventIndex;
	ret = memcpy( eventPacket.flatline_event.intArray, args, sizeof(int) * numArgs );
	ret = UDPServer_SendToAll( &eventPacket, sizeof(int) * (numArgs + 1) + FLATLINE_HEADER );
	return 0;
}

void FLsPingAll()
{
	flatline_packet ping;
	ping.id = PK_PING;
	lastPingTime = ping.ping = GetTickCount();
	UDPServer_SendToAll(&ping, FLATLINE_HEADER + 4);
}

void FLsUpdateName( int index, char* name )
{
	flatline_packet message;
	int message_size;	

	char message_buffer[1024];
	sprintf(message_buffer,"%s changed their name to %s", PlayerList[index]->name, name);
	COrMessage_Print(message_buffer, "name_change", 0);
	
	sprintf_s(PlayerList[index]->name, 32, "%s", name);
	sprintf_s(PlayerList[index]->Chr->Name, 32, "%s", name);

	message.id = CHANGE_NAME;
	message.data[0] = index;
	message_size = sprintf(message.data + 1, "%s", name);

	UDPServer_SendToAll(&message, message_size + 2 + FLATLINE_HEADER);
}
void FLsSend_BINACHAR( short j, sockaddr* socket )
{

	ActiveCharacter* AC = ONrGetActiveCharacter( PlayerList[j]->Chr);
	flatline_packet new_char = {0};
	CharacterObject* Char = &new_char.new_player.Character; 

	new_char.id = NEW_PLAYER;
	new_char.new_player.Playernumber = j;

//	memset(Char, 0, sizeof(CharacterObject));
	Char->Header.Type = 'CHAR';
	Char->OSD.Options = chr_dontaim;

	sprintf(Char->OSD.Name,"%s",PlayerList[j]->name);

	sprintf(Char->OSD.Class, "%s", TMrInstance_GetInstanceName(PlayerList[j]->Chr->ONCC));
		
	if(AC)
	{
		Char->Header.Position = AC->PhyContext->Position;
	}
	else
	{
		Char->Header.Position.X = 0;
		Char->Header.Position.Y = 0;
		Char->Header.Position.Z = 0;
	}
	
	NetTCPServer_Send(socket, (char*)&new_char, sizeof(new_player) + FLATLINE_HEADER );
}
bool FLrServer_PacketCallback(char* data, int datalen, int from)
{
	int i, j;
	bool found_player = 0;
	flatline_packet * packet = (flatline_packet*)data;
	static int recieved = 0;
	sockaddr_in sender;
	sender.sin_family = AF_INET;
	sender.sin_port = htons(27777);
	sender.sin_addr = *((struct in_addr*)(int*)&from);


	//packet->data[datalen] = '\0';

	//DDrConsole_PrintF("Packet \r%d recieved from %i",  ++recieved, from);



	//if data[0] != CONNECT_SEND, search in playerlist for ip address




	switch(packet->id) {
		flatline_packet connect_recv;
		player_info * playah;
		//rewrite this when we get TCP support.
		//rewrite this before we get TCP support*
		//the way of seeing if there is room for players sucks.
	case CONNECT_SEND:
		;

		connect_recv.id = CONNECT_REPLY;

		//if(Players[i].ip == sender.sin_addr.S_un.S_addr) break; //needs to send an error message
		sender.sin_addr.S_un.S_addr = htonl(sender.sin_addr.S_un.S_addr);
		playah = FLrServer_AddPlayer(from,packet->connect_send.name, 0, 0);
		DDrConsole_PrintF("%s connected from %s", packet->connect_send.name, inet_ntoa(sender.sin_addr ) );
		if(!((int)playah > -5 && (int)playah <= 0)) {
			
			connect_recv.connect_reply.goodtogo = 1;
			connect_recv.connect_reply.player_slot = playah->list_slot;
			//DDrConsole_PrintF("Slot: %i", playah->list_slot);

			//sending this several times to make sure it gets through. Really need to make up some form of packet tracking.
			NetUDPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(connect_reply) + FLATLINE_HEADER);
			NetUDPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(connect_reply) + FLATLINE_HEADER);
			NetUDPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(connect_reply) + FLATLINE_HEADER);
			NetUDPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(connect_reply) + FLATLINE_HEADER);
			NetUDPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(connect_reply) + FLATLINE_HEADER);
			Sleep(100);

			
			
			for(j = 0; j < max_connections; j++) {
				if(PlayerList[j] != 0) {
					FLsSend_BINACHAR( j, (sockaddr *)&sender);
				}

			}
		}
		else {
			//fix the error messages...
			DDrConsole_PrintF("Server is full. :(");
			connect_recv.connect_reply.goodtogo = 0;
			sender.sin_addr.S_un.S_addr = htonl(sender.sin_addr.S_un.S_addr);
			memcpy(&connect_recv.connect_reply.message,"Server is full.", sizeof("Server is full."));
			NetTCPServer_Send((sockaddr *) &sender, (char*)&connect_recv, sizeof(bool)*2 + FLATLINE_HEADER + sizeof("Server is full."));	

		} 


		break;
	case CONNECT_REPLY:
		break;	//do nothing...a server shouldn't recieve this type of packet.
	case MESSAGE:
		for(i = 0; i < MAX_PLAYERS; i++) {
			//DDrConsole_PrintF("%i : %i | %s : %s", from, Players[i].ip, inet_ntoa(*(struct in_addr*)&from), inet_ntoa(*(struct in_addr*)&(Players[i].ip)));
			if(Players[i].ip == sender.sin_addr.S_un.S_addr) {
				found_player = 1;
				break;
			}	
		}
		if(found_player == 0) break;
		else {
			char message_buffer[512] = {0};
			flatline_packet message;
			int message_size;
			data[datalen] = 0;

			DDrConsole_PrintF("%s: %s", Players[i].name, packet->data);
			sprintf(message_buffer, "%s: %s", Players[i].name, packet->data);

			message.id = MESSAGE;
			message_size = sprintf(message.data, "%s", message_buffer);
			COrMessage_Print(message_buffer, "chat", 0);
			UDPServer_SendToAll(&message, message_size + 1 + FLATLINE_HEADER);
			break;
		}
	case CHANGE_NAME:
		for(i = 0; i < MAX_PLAYERS; i++) {
			if(PlayerList[i] && PlayerList[i]->ip == sender.sin_addr.S_un.S_addr) {
				found_player = 1;
				break;
			}	
		}
		if(found_player == 0) break;
		else {
			bool name_exists = 0;
			for(j = 0; j < MAX_PLAYERS; j++) {
				if(PlayerList[j] && !strcmp(packet->data, PlayerList[j]->name)) {
					name_exists = 1;
					break;
				}
			}
			if(!name_exists) {
				FLsUpdateName( i, packet->data );
			}
			break;
		}
	case PLAYER_INPUT:

		for(i = 0; i < max_connections; i++) {
			if(PlayerList[i] != 0 && PlayerList[i]->ip == sender.sin_addr.S_un.S_addr) {
				found_player = 1;
				break;
			}	
		}

		if(found_player == 0) break;
		else {
			input_struct * packet_input = &packet->input_struct;


			PlayerList[i]->InputFromClient.Actions1 = packet_input->Actions1;
			PlayerList[i]->InputFromClient.Actions2 = packet_input->Actions2;
			PlayerList[i]->InputFromClient.MouseDeltaX = packet_input->MouseDeltaX;
			PlayerList[i]->InputFromClient.MouseDeltaY = packet_input->MouseDeltaY;
			PlayerList[i]->FacingFromClient = packet_input->DesiredFacing;
			//PlayerList[i]->LastInputTime = packet_input->Time;

			break;
		}
	case PK_PONG:
		for(i = 0; i < max_connections; i++) {
			if(PlayerList[i] != 0 && PlayerList[i]->ip == sender.sin_addr.S_un.S_addr) {
				found_player = 1;
				break;
			}	
		}

		if(found_player == 0) break;
		if(packet->ping != lastPingTime)
		{
			PlayerList[i]->Ping = 999;
		}
		else
		{
			PlayerList[i]->Ping = GetTickCount() - packet->ping;
		}
		break;
	case PK_MISSING_PLAYER:
		if(packet->integer < MAX_PLAYERS)
		{
			FLsSend_BINACHAR( packet->integer, &sender);
		}
		break;
	default:
		DDrConsole_PrintF("Warning, recieved badly formed packet!");
		break;
	}
	return true;
}