<?php
/**
 * Artifact effect 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");

/**
 * Artifact effect.
 *
 * Represents each of the up to 4 artifact effects (not the main stat).
 *
 * @category Entity
 */
class Artifact_Effect extends Entity{

    /**
     * @var int The effect slot ({@see ARTIFACT_EFFECT_SLOT_ID}).
     */
    private $slot;

    /**
     * @var int The effect ID.
     */
    private $effect;

    /**
     * @var string The effect name.
     */
    private $name;

    /**
     * @var float The value of the effect.
     */
    private $value;

    /**
     * @var float The grinded value of the effect.
     */
    private $grind;

    /**
     * @var bool Indicates if the effect has been enchanted.
     */
    private $enchant;

    /**
     * Constructor.
     *
     * Retrieves the artifact effect information from the database.
     *
     * @param int $artifact Artifact id.
     * @param int $slot Artifact effect slot id.
     */
    public function __construct($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"]);
            }

        }
        else{
            // Not found. Maybe as a run drop?
            $select = "effect_1 AS effect, effect_1_value AS value";
            switch ($slot){
                case ARTIFACT_EFFECT_SLOT_ID::EFFECT_1:
                    $select = "effect_1 AS effect, effect_1_value AS value";
                    break;
                case ARTIFACT_EFFECT_SLOT_ID::EFFECT_2:
                    $select = "effect_2 AS effect, effect_2_value AS value";
                    break;
                case ARTIFACT_EFFECT_SLOT_ID::EFFECT_3:
                    $select = "effect_3 AS effect, effect_3_value AS value";
                    break;
                case ARTIFACT_EFFECT_SLOT_ID::EFFECT_4:
                    $select = "effect_4 AS effect, effect_4_value AS value";
                    break;
            }
            $statement = get_context()->get_db()->prepare("
              SELECT $select
              FROM run_drop_artifact
              WHERE id = :id
            ");
            $statement->bindValue(':id', $artifact, SQLITE3_TEXT);
            $r = $statement->execute()->fetchArray(SQLITE3_ASSOC);
            if ($r){
                $this->slot = $slot;
                $this->effect = $r["effect"];
                $this->value = $r["value"];
                $this->enchant = false;
                $this->grind = 0;
                $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 float Effect value.
     */
    public function get_value(){
        return $this->value;
    }

    /**
     * Retrieves the grinded value on the effect.
     *
     * @return float Effect grinded value.
     */
    public function get_grind(){
        return $this->grind;
    }

    /**
     * Checks if the effect has been enchanted.
     *
     * @return bool True if the effect was enchanted, false otherwise
     */
    public function is_enchanted(){
        return filter_var($this->enchant, FILTER_VALIDATE_BOOLEAN);
    }

}