<?php

    /**
     * Building entity file.
     *
     * Creates the entity and makes it available.
     *
     * @category Entity
     */

    /**
     * Require dependent entities if not present.
     */
    require_once(PATH::ENTITY . "Entity.php");
    require_once(PATH::ENTITY . "Buildable.php");

    /**
     * A Building.
     *
     * Represents an object from the table 'building'.
     *
     * @category Entity
     */
    class Building extends Entity{

        private $player_id;
        private $buildable;
        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 number Gain per hour.
         */
        public function get_gain(){
            return $this->gain;
        }
    
    }
?>