<?php

namespace mt;

require_once('mt/StrHelper.php');
require_once('mt/AttrHelper.php');

use phpcommon;

class HeroLevelAttr {

    public static function get($id)
    {
        return getXVal(self::getMetaList(), $id);
    }

    public static function addRandAttr($level, &$dbAttrs)
    {
        $newAttrs = array();
        foreach (self::getMetaList() as $meta) {
            if ($meta['level'] == $level) {
                if (in_array(
                    $meta['type'],
                    array(
                        kHAT_ABS_VAL,
                        kHAT_RATE_VAL
                    )
                )) {
                    $val = self::getAttrValue($meta);
                    if ($val > 0) {
                        array_push(
                            $newAttrs,
                            array(
                            'attr_id' => $meta['attr_id'],
                            'type' => $meta['type'],
                            'val' => $val,
                        ));
                    }
                }
            }
        }
        AttrHelper::mergeAttr($dbAttrs, $newAttrs);
        return true;
    }

    protected static function getAttrValue($meta)
    {
        $strs = explode('|', $meta['attr_weight']);

        $totalSpace = 0;
        foreach ($strs as $tmpStr) {
            $strs2 = explode(':', $tmpStr);
            if (count($strs2) == 2) {
                $totalSpace += $strs2[1];
            }
        }

        if ($totalSpace > 0) {
            $randSpace = rand(0, $totalSpace);
            $currSpace = 0;
            foreach ($strs as $tmpStr) {
                $strs2 = explode(':', $tmpStr);
                if (count($strs2) == 2) {
                    $currSpace += $strs2[1];
                }
                if ($randSpace <= $currSpace) {
                    return $strs2[0];
                }
            }
        }

        return 0;
    }

    protected static function getMetaList()
    {
        if (!self::$metaList) {
            self::$metaList = getMetaTable('heroLevelAttr@heroLevelAttr.php');
        }
        return self::$metaList;
    }

    protected static $metaList;

}