<?php
    /**
     * Artifact effect entity file.
     *
     * Creates the entity and makes it available.
     *
     * @category Entity
     */

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

    /**
     * Artifact effect.
     *
     * Represents an object from the table 'artifact_effect'.
     *
     * @category Entity
     */
    class Artifact_Effect extends Entity{

        private $slot;
        private $effect;
        private $name = "";
        private $value;
        private $grind;
        private $enchant;

        /**
         * Constructor.
         *
         * Retrieves the artifact effect information from the database.
         *
         * @param int $artifact Artifact id.
         * @param int $slot Artifact slot id.
         */
        public function __construct($artifact, $slot){

            $statement = get_context()->get_db()->prepare("
              SELECT
                slot,
                effect,
                value,
                enchant,
                grind
              FROM artifact_effect
              WHERE
                artifact = :artifact AND
                slot = :slot;
            ");
            $statement->bindValue(':artifact', $artifact, SQLITE3_TEXT);
            $statement->bindValue(':slot', $slot, SQLITE3_TEXT);
            $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
            if ($r){
                $this->effect = $r["effect"];
                $this->value = $r["value"];
                $this->enchant = $r["enchant"];
                $this->grind = $r["grind"];
                $statement = get_context()->get_db()->prepare("
                  SELECT name
                  FROM effect_artifact
                  WHERE id = :id;
                ");
                $statement->bindValue(':id', $this->effect, SQLITE3_TEXT);
                $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
                if ($r){
                    $this->name = str_replace("{}", $this->value, $r["name"]);
                }

            }
        }

        /**
         * Retrieves the artifact effect's slot identifier.
         *
         * @see ARTIFACT_EFFECT_SLOT_ID
         *
         * @return int Effect slot ID.
         */
        public function get_slot(){
            return $this->slot;
        }
        
        /**
         * Artifact effect identifier.
         *
         * @return int Effect ID.
         */
        public function get_effect(){
            return $this->effect;
        }
        
        /**
         * Retrieves the artifact effect name.
         *
         * @return string The effect name.
         */
        public function get_name(){
            return $this->name;
        }
        
        /**
         * Retrieves the value of the artifact effect, excluding grinds.
         *
         * @return number Effect value.
         */
        public function get_value(){
            return $this->value;
        }
        
        /**
         * Retrieves the grinded value on the effect.
         *
         * @return number Effect grinded value.
         */
        public function get_grind(){
            return $this->grind;
        }
        
        /**
         * Checks if the effect has been enchanted.
         *
         * @return boolean True if the effect was enchanted, false otherwise
         */
        public function is_enchanted(){
            return filter_var($this->enchant, FILTER_VALIDATE_BOOLEAN);
        }

    }
?>