#include <algorithm>
#include <string.h>

#include "game.h"
#include "network/game_state_message.h"
#include "network/socket.h"
#include "network/message.h"

Player* Game::add_player(BettolaLib::Network::Socket* socket) {
  _players.push_back(new Player(socket));
  return _players.back();
}

void Game::remove_player(unsigned int player_id) {
  _players.erase(
    std::remove_if(_players.begin(), _players.end(),
                   [player_id](Player* player) {
                      if(player->get_id() == player_id) {
                          delete player;
                          return true;
                      }
                      return false;
                   }),
    _players.end());
}

void Game::update_player_pos(unsigned int player_id, float x, float y) {
  auto it = std::find_if(_players.begin(), _players.end(),
                         [player_id](const Player* player) {
                            return player->get_id() == player_id;
                         });
  if(it != _players.end()) {
    (*it)->set_position(x, y);
  }
}

void Game::broadcast_game_state(void) {
  BettolaLib::Network::GameStateMessage msg;
  msg.num_players = _players.size();
  memset(msg.players, 0, sizeof(msg.players));

  for(size_t i = 0; i < _players.size(); ++i) {
    msg.players[i].player_id = _players[i]->get_id();
    msg.players[i].x = _players[i]->get_x();
    msg.players[i].y = _players[i]->get_y();
  }

  BettolaLib::Network::MessageHeader header;
  header.type = BettolaLib::Network::MessageType::GameState;
  header.size = sizeof(msg);

  for(const auto& player : _players) {
    BettolaLib::Network::Socket& socket = player->get_socket();
    socket.send(&header, sizeof(header));
    socket.send(&msg, sizeof(msg));
  }
}

Player* Game::get_player_by_socket(BettolaLib::Network::Socket* socket) {
  auto it = std::find_if(_players.begin(), _players.end(),
                         [socket](const Player* player) {
                            return &player->get_socket() == socket;
                         });

  return(it != _players.end() ? *it : nullptr);
}