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/* $Id$ */

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#ifdef ENABLE_NETWORK

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#include "../stdafx.h"

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#include "../debug.h"

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#include "network_data.h"

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#include "../newgrf_config.h"

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// This file handles the GameList

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// Also, it handles the request to a server for data about the server

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/** Add a new item to the linked gamelist. If the IP and Port match

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 * return the existing item instead of adding it again

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 * @param ip the IP-address (inet_addr) of the to-be added item

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 * @param port the port the server is running on

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 * @return a point to the newly added or already existing item */

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NetworkGameList *NetworkGameListAddItem(uint32 ip, uint16 port)

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{

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	NetworkGameList *item, *prev_item;

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	prev_item = NULL;

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	for (item = _network_game_list; item != NULL; item = item->next) {

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		if (item->ip == ip && item->port == port) return item;

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		prev_item = item;

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	}

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	memset(item, 0, sizeof(*item));

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	item->next = NULL;

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	item->ip = ip;

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	item->port = port;

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	if (prev_item == NULL) {

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		_network_game_list = item;

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	} else {

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		prev_item->next = item;

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	}

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	DEBUG(net, 4, "[gamelist] added server to list");

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	UpdateNetworkGameWindow(false);

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	return item;

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}

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/** Remove an item from the gamelist linked list

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 * @param remove pointer to the item to be removed */

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void NetworkGameListRemoveItem(NetworkGameList *remove)

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{

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	NetworkGameList *item, *prev_item;

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	prev_item = NULL;

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	for (item = _network_game_list; item != NULL; item = item->next) {

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		if (remove == item) {

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			if (prev_item == NULL) {

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				_network_game_list = remove->next;

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			} else {

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				prev_item->next = remove->next;

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			}

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			/* Remove GRFConfig information */

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			ClearGRFConfigList(&remove->info.grfconfig);

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			free(remove);

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			remove = NULL;

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			DEBUG(net, 4, "[gamelist] removed server from list");

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			UpdateNetworkGameWindow(false);

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			return;

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		}

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		prev_item = item;

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	}

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}

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#endif /* ENABLE_NETWORK */