<?php

namespace mt;

use phpcommon;

class ShopGoods
{

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

    public static function getByGoodsUuid($goodsUuid)
    {
        return getXVal(self::getMetaList(), $goodsUuid);
    }

    public static function getGoodsList($shopId)
    {
        self::mustBeShopGoodsHash();
        $shopData = getXVal(self::$shopGoodsHash, $shopId, null);
        if (!$shopData) {
            return null;
        }
        return $shopData['goodsList'];
    }
    public static function all()
    {
        if (!self::$goodsList) {
            self::$goodsList = array();
            foreach (self::getMetaList() as $meta) {
                array_push(self::$goodsList, $meta);
            }
        }

        return self::$goodsList;
    }

    public static function getGoodsInfo($shopId, $goodsId)
    {
        self::mustBeShopGoodsHash();
        $shopData = getXVal(self::$shopGoodsHash, $shopId, null);
        if (!$shopData) {
            return null;
        }
        return getXVal($shopData['goodsHash'], $goodsId, null);
    }

    public static function getRandDailyHeroGoodsIds($shopId, $num)
    {
        $goodsMetaList = self::getGoodsList($shopId);
        $goodsIds = array();
        foreach ($goodsMetaList as $goodsMeta) {
            if ($goodsMeta['is_close']) {
                continue;
            }
            array_push($goodsIds, $goodsMeta['goods_id']);
        }
        shuffle($goodsIds);
        $result = array();
        for ($i = 0; $i < $num; ++$i) {
            if ($i < count($goodsIds)) {
                array_push($result, $goodsIds[$i]);
            }
        }
        return $result;
    }

    protected static function mustBeShopGoodsHash()
    {
        if (!self::$shopGoodsHash) {
            self::$shopGoodsHash = array();
            foreach (self::getMetaList() as $meta) {
                if (!getXVal(self::$shopGoodsHash, $meta['shop_id'], null)) {
                    self::$shopGoodsHash[$meta['shop_id']] = array(
                        'goodsList' => array(),
                        'goodsHash' => array()
                    );
                }
                self::$shopGoodsHash[$meta['shop_id']]['goodsHash'][$meta['goods_id']] = $meta;
                array_push(self::$shopGoodsHash[$meta['shop_id']]['goodsList'], $meta);
            }
        }
    }

    protected static function getMetaList()
    {
        if (!self::$metaList) {
            self::$metaList = getMetaTable('shopGoods@shopGoods.php');
            foreach (self::$metaList as &$meta) {
                $meta['free_type'] = 0;
            }
        }
        return self::$metaList;
    }

    protected static $goodsList;
    protected static $shopGoodsHash;
    protected static $metaList;
}