<?php

/**#@+
 * @version 0.0.6
 * @since 0.0.6
 */

/**
 * @package POT
 * @version 0.1.3
 * @author Wrzasq <wrzasq@gmail.com>
 * @copyright 2007 - 2008 (C) by Wrzasq
 * @license http://www.gnu.org/licenses/lgpl-3.0.txt GNU Lesser General Public License, Version 3
 */

/**
 * Wrapper for monsters files DOMDocument.
 *
 * <p>
 * Note: as this class extends {@link http://www.php.net/manual/en/ref.dom.php DOMDocument class} and contains exacly file XML tree you can work on it as on normal DOM tree.
 * </p>
 *
 * @package POT
 * @version 0.1.3
 * @property-read string $name Monster name.
 * @property-read string $race Monster race.
 * @property-read int $experience Experience for killing monster.
 * @property-read int $speed Monster speed.
 * @property-read int|bool $manaCost Mana required (false if not possible).
 * @property-read int $health Hit points.
 * @property-read array $flags Flags.
 * @property-read array $voices List of sounds.
 * @property-read array $items List of possible loot.
 * @property-read array $immunities List of immunities.
 * @property-read int $defense Defense rate.
 * @property-read int $armor Armor rate.
 * @property-read array $defenses List of defenses.
 * @property-read array $attacks List of attacks.
 */
class OTS_Monster extends DOMDocument
{
	private $loaded = false;
	public function loadXML($source , $options = 0)
	{
		$this->loaded = parent::loadXML($source, $options);
	}

	public function loaded()
	{
		return $this->loaded;
	}
/**
 * Returns monster name.
 *
 * @return string Name.
 * @throws DOMException On DOM operation error.
 */
    public function getName()
    {
        return $this->documentElement->getAttribute('name');
    }

/**
 * Returns monster race.
 *
 * @return string Race.
 * @throws DOMException On DOM operation error.
 */
    public function getRace()
    {
        return $this->documentElement->getAttribute('race');
    }

/**
 * Returns amount of experience for killing this monster.
 *
 * @return int Experience points.
 * @throws DOMException On DOM operation error.
 */
    public function getExperience()
    {
        return (int) $this->documentElement->getAttribute('experience');
    }

/**
 * Returns monster speed.
 *
 * @return int Speed.
 * @throws DOMException On DOM operation error.
 */
    public function getSpeed()
    {
        return (int) $this->documentElement->getAttribute('speed');
    }

/**
 * Returns amount of mana required to summon this monster.
 *
 * @return int|bool Mana required (false if not possible).
 * @throws DOMException On DOM operation error.
 */
    public function getManaCost()
    {
        // check if it is possible to summon this monster
        if( $this->documentElement->hasAttribute('manacost') )
        {
            return (int) $this->documentElement->getAttribute('manacost');
        }
        else
        {
            return false;
        }
    }

/**
 * Returns monster HP.
 *
 * @return int Hit points.
 * @throws DOMException On DOM operation error.
 */
    public function getHealth()
    {
        return (int) $this->documentElement->getElementsByTagName('health')->item(0)->getAttribute('max');
    }

/**
 * Returns all monster flags (in format flagname => value).
 *
 * @return array Flags.
 * @throws DOMException On DOM operation error.
 */
    public function getFlags()
    {
        $flags = array();

        // read all flags
        foreach( $this->documentElement->getElementsByTagName('flags')->item(0)->getElementsByTagName('flag') as $flag)
        {
            $flag = $flag->attributes->item(0);

            $flags[$flag->nodeName] = (int) $flag->nodeValue;
        }

        return $flags;
    }

/**
 * Returns specified flag value.
 *
 * @param string $flag Flag.
 * @return int|bool Flag value (false if not set).
 * @throws DOMException On DOM operation error.
 */
    public function getFlag($flag)
    {
        // searches for flag
        foreach( $this->documentElement->getElementsByTagName('flags')->item(0)->getElementsByTagName('flag') as $flag)
        {
            // found
            if( $flag->hasAttribute($flag) )
            {
                return (int) $flag->getAttribute($flag);
            }
        }

        // not found
        return false;
    }

/**
 * Returns voices that monster can sound.
 *
 * @return array List of voices.
 * @throws DOMException On DOM operation error.
 */
    public function getVoices()
    {
        $voices = array();

        $element = $this->documentElement->getElementsByTagName('voices')->item(0);

        // checks if it has any voices
        if( isset($element) )
        {
            // loads all voices
            foreach( $element->getElementsByTagName('voice') as $voice)
            {
                $voices[] = $voice->getAttribute('sentence');
            }
        }

        return $voices;
    }

/**
 * @return array List of item IDs.
 */
    public function getLoot()
    {
        $loot = array();

        $element = $this->documentElement->getElementsByTagName('loot')->item(0);

        // checks if it has any loot
        if( isset($element) )
        {
            // adds all items
            foreach( $element->getElementsByTagName('item') as $item)
            {
	            $chance = $item->getAttribute('chance');
	            if(empty($chance)) {
		            $chance = $item->getAttribute('chance1');
		            if(empty($chance)) {
		                $chance = 100000;
                    }
                }

                $count = $item->getAttribute('countmax');
	            if(empty($count)) {
	                $count = 1;
                }

                $id = $item->getAttribute('id');
                if(empty($id)) {
                    $id = $item->getAttribute('name');
                }

                $loot[] = array('id' => $id, 'count' => $count, 'chance' => $chance);
            }
        }

        return $loot;
    }

/**
 * Returns all possible loot.
 *
 * <p>
 * In order to use this method you have to have global items list loaded.
 * </p>
 *
 * @version 0.1.0
 * @since 0.1.0
 * @return array List of item types.
 * @throws E_OTS_NotLoaded When there is no items list available in global POT instance.
 * @throws DOMException On DOM operation error.
 */
    public function getItems()
    {
        $loot = array();
        $keys = array();
        $items = POT::getInstance()->getItemsList();

        $element = $this->documentElement->getElementsByTagName('loot')->item(0);

        // checks if it has any loot
        if( isset($element) )
        {
            // adds all items
            foreach( $element->getElementsByTagName('item') as $item)
            {
                $id = $item->getAttribute('id');

                // avoid redundancy
                if( !in_array($id, $keys) )
                {
                    $keys[] = $id;
                    $loot[] = $items->getItemType($id);
                }
            }
        }

        return $loot;
    }

/**
 * Returns all monster summons.
 *
 * @return array elements.
 * @throws DOMException On DOM operation error.
 */

	public function getSummons()
    {
        $summons = array();

        $element = $this->documentElement->getElementsByTagName('summons')->item(0);

        // checks if it has any Summons
        if( isset($element) )
        {
            // adds all summons
            foreach( $element->getElementsByTagName('summon') as $item)
            {
	            $chance = $item->getAttribute('chance');
                $id = $item->getAttribute('name');
                $summons[] = array('name' => $id, 'chance' => $chance);
            }
        }
        return $summons;
    }

/**
 * Returns all monster elements.
 *
 * @return array elements.
 * @throws DOMException On DOM operation error.
 */
    public function getElements()
    {
        $elements = array();

        $element = $this->documentElement->getElementsByTagName('elements')->item(0);

        // checks if it has any elements
        if( isset($element) )
        {
            // read all elements
            foreach( $element->getElementsByTagName('element') as $elementv)
            {
                $elementv = $elementv->attributes->item(0);

                // checks if element is set
                if($elementv->nodeValue > 0)
                {
					 $elements[] = array('name' => ucfirst(str_replace('Percent', '', $elementv->nodeName)), 'percent' => $elementv->nodeValue);
                }
            }
        }

        return $elements;
    }

/**
 * Checks if monster has given element.
 *
 * @param string $name element to check.
 * @return bool element state.
 * @throws DOMException On DOM operation error.
 */
    public function hasElement($name)
    {
        $element = $this->documentElement->getElementsByTagName('elements')->item(0);

        // if doesn't have any elements obviously doesn't have this one too
        if( isset($element) )
        {
            // read all elements
            foreach( $element->getElementsByTagName('element') as $element)
            {
                // checks if this is what we are searching for
                if( $element->hasAttribute($name) )
                {
                    return $element->getAttribute($name) > 0;
                }
            }
        }

        return false;
    }

/**
 * Returns all monster immunities.
 *
 * @return array Immunities.
 * @throws DOMException On DOM operation error.
 */
    public function getImmunities()
    {
        $immunities = array();

        $element = $this->documentElement->getElementsByTagName('immunities')->item(0);

        // checks if it has any immunities
        if( isset($element) )
        {
            // read all immunities
            foreach( $element->getElementsByTagName('immunity') as $immunity)
            {
                $immunity = $immunity->attributes->item(0);

                // checks if immunity is set
                if($immunity->nodeValue > 0)
                {
                    $immunities[] = $immunity->nodeName;
                }
            }
        }

        return $immunities;
    }

/**
 * Checks if monster has given immunity.
 *
 * @param string $name Immunity to check.
 * @return bool Immunity state.
 * @throws DOMException On DOM operation error.
 */
    public function hasImmunity($name)
    {
        $element = $this->documentElement->getElementsByTagName('immunities')->item(0);

        // if doesn't have any immunities obviously doesn't have this one too
        if( isset($element) )
        {
            // read all immunities
            foreach( $element->getElementsByTagName('immunity') as $immunity)
            {
                // checks if this is what we are searching for
                if( $immunity->hasAttribute($name) )
                {
                    return $immunity->getAttribute($name) > 0;
                }
            }
        }

        return false;
    }

/**
 * Returns monster defense rate.
 *
 * @return int Defense rate.
 * @throws DOMException On DOM operation error.
 */
    public function getDefense()
    {
        $element = $this->documentElement->getElementsByTagName('defenses')->item(0);

        // checks if defenses element is set
        if( isset($element) )
        {
            return (int) $element->getAttribute('defense');
        }

        return 0;
    }

/**
 * Returns monster armor.
 *
 * @return int Armor rate.
 * @throws DOMException On DOM operation error.
 */
    public function getArmor()
    {
        $element = $this->documentElement->getElementsByTagName('defenses')->item(0);

        // checks if defenses element is set
        if( isset($element) )
        {
            return (int) $element->getAttribute('armor');
        }

        return 0;
    }

/**
 * Returns list of special defenses.
 *
 * @return array List of defense effects.
 * @throws DOMException On DOM operation error.
 */
    public function getDefenses()
    {
        $defenses = array();

        $element = $this->documentElement->getElementsByTagName('defenses')->item(0);

        // checks if it has any defenses
        if( isset($element) )
        {
            foreach( $element->getElementsByTagName('defense') as $defense)
            {
                $defenses[] = $defense->getAttribute('name');
            }
        }

        return $defenses;
    }

/**
 * Returns list of monster attacks.
 *
 * @return array List of attafck effects.
 * @throws DOMException On DOM operation error.
 */
    public function getAttacks()
    {
        $attacks = array();

        $element = $this->documentElement->getElementsByTagName('attacks')->item(0);

        // checks if it has any defenses
        if( isset($element) )
        {
            foreach( $element->getElementsByTagName('attack') as $attack)
            {
                $attacks[] = $attack->getAttribute('name');
            }
        }

        return $attacks;
    }

/**
 * Magic PHP5 method.
 *
 * @version 0.1.0
 * @since 0.1.0
 * @param string $name Property name.
 * @return mixed Property value.
 * @throws OutOfBoundsException For non-supported properties.
 * @throws DOMException On DOM operation error.
 */
    public function __get($name)
    {
        switch($name)
        {
            case 'name':
                return $this->getName();

            case 'race':
                return $this->getRace();

            case 'experience':
                return $this->getExperience();

            case 'speed':
                return $this->getSpeed();

            case 'manaCost':
                return $this->getManaCost();

            case 'health':
                return $this->getHealth();

            case 'flags':
                return $this->getFlags();

            case 'voices':
                return $this->getVoices();

            case 'items':
                return $this->getItems();

            case 'immunities':
                return $this->getImmunities();

            case 'defense':
                return $this->getDefense();

            case 'armor':
                return $this->getArmor();

            case 'defenses':
                return $this->getDefenses();

            case 'attacks':
                return $this->getAttacks();

            default:
                throw new OutOfBoundsException();
        }
    }

/**
 * Returns string representation of XML.
 *
 * <p>
 * If any display driver is currently loaded then it uses it's method. Otherwise just returns monster XML content.
 * </p>
 *
 * @version 0.1.3
 * @since 0.1.0
 * @return string String representation of object.
 */
    public function __toString()
    {
        $ots = POT::getInstance();

        // checks if display driver is loaded
        if( $ots->isDataDisplayDriverLoaded() )
        {
            return $ots->getDataDisplayDriver()->displayMonster($this);
        }

        return $this->saveXML();
    }
}

/**#@-*/

?>