<?php
namespace App;
require_once '../vendor/autoload.php';
use Symfony\Component\VarDumper\VarDumper as dd;

define('RESTORE_PER_MINUTE', 5);
define('Pl_file', 'player.json');

/**
 * Class Player
 * @property Game
 **/
class Player extends Game
{

    /**
     * @var Player
     **/
    protected $_player;

    /**
     * Constructing player obj from session
     **/
    public function __construct()
    {
        $this->_player = $this->_checkPlayer();
    }

    /**
     * @return Player|mixed|object
     */
    private function _checkPlayer()
    {

        if (file_exists(Pl_file)) {
            $this->_player = json_decode(
                file_get_contents(Pl_file)
            );
            return $this->_player;
        }

        $player = (object)[
            'hp' => 100,
            'energy' => 50,
            'max_energy' => 50,
            'mana' => 95,
            'gold' => 350,
            'full_at' => '00.00.0000 00:00:00'
        ];

        file_put_contents(Pl_file, json_encode($player));
        $this->_player = $player;

        return $player;

    }

    /**
     * @param $action_id
     * @return mixed
     */
    public function spentEnergy($action_id)
    {
        $actions = [
            1 => 5,
            2 => 7,
            3 => 40
        ];

        if ($actions[$action_id]) {
            $energy = $this->_getPlayerKey('energy');
            $max_energy = $this->_getPlayerKey('max_energy');
            if ($energy >= $actions[$action_id]) {
                $current = $energy - $actions[$action_id];
                $times = ceil(($max_energy - $current) / RESTORE_PER_MINUTE);
                return $this->_setPlayerKey(['energy', 'full_at'], [$current, time() + $times * 60]);
            }
        }
        return false;
    }

    /**
     * @return Player|mixed|object
     */
    public function player()
    {
        return ($this->_checkPlayer());
    }

    /**
     * @param array $keys
     * @param array $values
     * @return int
     */
    private function _setPlayerKey(array $keys, array $values)
    {
        $player = json_decode($_COOKIE['Player']);

        foreach ($keys as $i => $key) {
            $player->{$key} = $values[$i];
        }

        return file_put_contents(Pl_file, json_encode($player));
    }

    /**
     * @param $key
     * @return mixed
     */
    private function _getPlayerKey($key)
    {
        return $this->_player->{$key};
    }
}

$player = new Player();

dd::dump($player->player());