-module(ggs_table).
-export([
    start_link/2,
    add_player/2,
    remove_player/2,
    stop/1,
    notify/3,
	loop/4,
	foo/0
]).

-include_lib("eunit/include/eunit.hrl").

%% @doc This module represents a Player with a Socket and a Token

% @doc returns a new table
start_link(Token, Socket) ->
    GameVM = ggs_gamevm:start_link(),
    Pid = spawn_link(?MODULE, loop, [Token, Socket, GameVM, []]),
	Pid.

% @doc adds a player to a table
add_player(Table, Player) ->
	Table ! {add_player, Player},
	ok.

% @doc removes player form a table
remove_player(Table, Player) ->
	Table ! {remove_player, Player},
	ok.

% @doc stops the table process
stop(Table) ->
    Table ! {'EXIT', self(), normal},
	ok.

% @doc notifies the table with a message from a player
notify(Table, Player, Message) ->
    Table ! {notify, Player, Message},
	ok.

% loop
loop(Token, Socket, GameVM, PlayerList) ->
    receive
        {add_player, Player} ->
            NewPlayerList = list:append(PlayerList, [Player]),
            loop(Token, Socket, GameVM, NewPlayerList);

        {remove_player, Player} ->
            NewPlayerList = list:delete(Player, PlayerList),
            loop(Token, Socket, GameVM, NewPlayerList);

        {notify, Player, Message} ->
            case Message of
                {server, define, Args} ->
                    ggs_gamevm:define(GameVM, Args),
                    loop(Token, Socket, GameVM, PlayerList);
                {game, Command, Args} ->
                    ggs_gamevm:user_command(GameVM, Player, Command, Args),
                    loop(Token, Socket, GameVM, PlayerList);
				Any ->
					error_logger:info_msg("~p: Unknown message ~p~n", [?MODULE, Any]),
                    loop(Token, Socket, GameVM, PlayerList)
            end
		end.

% Tests

start_link_test() ->
	{ok, LSocket} = gen_tcp:listen(7000, [binary, {packet, 0}, {active, false}]),
	{ok, Socket} = gen_tcp:accept(LSocket),
	ClientToken = "123",
	Pid = start_link(ClientToken, Socket),
	?assertNot(Pid =:= undefined).