<?php

/**
 * Building entity file.
 *
 * Creates the entity and makes it available.
 *
 * @author Iñigo Valentin <i@inigovalentin.com>
 * @license https://www.gnu.org/licenses/gpl-3.0.en.html GNU General Public License V3
 * @package SWDB
 */

require_once(PATH::ENTITY . "Entity.php");
require_once(PATH::ENTITY . "Buildable.php");

/**
 * A building.
 *
 * Represents an building owned by a player.
 * Buildings that can be built and leveled up are not considered buildings, but {@link Decoration}s.
 *
 * @category Entity
 */
class Building extends Entity{

    /**
     * @var int Owner's player ID.
     */
    private $player_id;

    /**
     * @var Buildable The base buildable.
     */
    private $buildable;

    /**
     * @var int The gain per hour, on whatever bonus the building provides.
     */
    private $gain;

    /**
     * Constructor.
     *
     * Searches the database and retrieves the information about the
     * building, populating it and it's items.
     *
     * @param int $id Building identifier.
     */
    public function __construct($id){

        $statement = get_context()->get_db()->prepare("
          SELECT
            player,
            buildable,
            gain
          FROM building
          WHERE id = :id;
        ");
        $statement->bindValue(':id', $id, SQLITE3_TEXT);
        $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
        if ($r){
            $this->player = $r["player"];
            $this->buildable = new Buildable($r["buildable"]);
            $this->gain = $r["gain"];
        }
    }
    /**
     * Retrieves the player identifier of the owner
     *
     * @return int Player ID.
     */
    public function get_player(){
        return $this->player_id;
    }

    /**
     * Retrieves the base buildable.
     *
     * @return Buildable Base buildable.
     */
    public function get_buildable(){
        return $this->buildable;
    }

    /**
     * Retrieves the gain per hour, on whatever the building provides.
     *
     * @return int Gain per hour.
     */
    public function get_gain(){
        return $this->gain;
    }

}