<?php

/**
 * ECSHOP 选购中心
 * ============================================================================
 * 版权所有 2005-2010 上海商派网络科技有限公司，并保留所有权利。
 * 网站地址: http://www.ecshop.com；
 * ----------------------------------------------------------------------------
 * 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
 * 使用；不允许对程序代码以任何形式任何目的的再发布。
 * ============================================================================
 * $Author: liuhui $
 * $Id: pick_out.php 17063 2010-03-25 06:35:46Z liuhui $
*/

define('IN_ECS', true);

require(dirname(__FILE__) . '/includes/init.php');

$condition = array();
$picks = array();
$cat_id = !empty($_GET['cat_id']) ? intval($_GET['cat_id']) : 0;
if (!empty($_GET['attr']))
{
    foreach($_GET['attr'] as $key => $value)
    {
        if (!is_numeric($key))
        {
            unset($_GET['attr'][$key]);
            continue;
        }
        $key = intval($key);
        $_GET['attr'][$key] = htmlspecialchars($value);
    }
}

if (empty($cat_id))
{
    /* 获取所有符合条件的商品类型 */
    $sql = "SELECT DISTINCT t.cat_id, t.cat_name " .
            "FROM " . $ecs->table('goods_type') . " AS t, " . $ecs->table('attribute') . " AS a, " . $ecs->table('goods_attr') . " AS g " .
            "WHERE t.cat_id = a.cat_id AND a.attr_id = g.attr_id AND t.enabled = 1";
    $rs = $db->query($sql);

    $in_cat   = array();
    $cat_name = array();
    $in_goods = '';

    while ($row = $db->fetchRow($rs))
    {
        $condition[$row['cat_id']]['name'] = $row['cat_name'];
        $in_cat[] = $row['cat_id'];
    }

    $in_cat = "AND a.cat_id ".db_create_in($in_cat);

    /* 获取符合条件的属性 */
    $sql = "SELECT DISTINCT a.attr_id ".
            "FROM ".$ecs->table('goods_attr')." AS g, ".$ecs->table('attribute') ." AS a ".
            "WHERE a.attr_id = g.attr_id " . $in_cat;

    $in_attr = $db->getCol($sql); //符合条件attr_id;
    $in_attr = 'AND g.attr_id '.db_create_in($in_attr);

    /* 获取所有属性值 */
    $sql = "SELECT DISTINCT g.attr_id, a.attr_name, a.cat_id, g.attr_value".
            " FROM ".$ecs->table('goods_attr')." AS g, ".
                $ecs->table('attribute') ." AS a".
            " WHERE a.attr_id = g.attr_id ".$in_attr." ORDER BY cat_id";
    $rs = $db->query($sql);

    while ($row = $db->fetchRow($rs))
    {
        if (empty($condition[$row['cat_id']]['cat'][$row['attr_id']]['cat_name']))
        {
            $condition[$row['cat_id']]['cat'][$row['attr_id']]['cat_name'] = $row['attr_name'];
        }

        $condition[$row['cat_id']]['cat'][$row['attr_id']]['list'][] = array('name'=>$row['attr_value'], 'url'=>'pick_out.php?cat_id='.$row['cat_id'].'&amp;attr['.$row['attr_id'].']='.urlencode($row['attr_value']));
    }

    /* 获取商品总数 */
    $goods_count = $db->GetOne("SELECT COUNT(DISTINCT(goods_id)) FROM " . $ecs->table('goods_attr'));
    /* 获取符合条件的商品id */
    //$sql = "SELECT DISTINCT goods_id FROM " .$ecs->table('goods_attr'). " LIMIT 100";
    $sql = "SELECT DISTINCT goods_id FROM " .$ecs->table('goods_attr');
    $in_goods = $db->GetCol($sql);
    $in_goods = 'AND g.goods_id ' . db_create_in(implode(',', $in_goods));
    $url = "search.php?pickout=1";
}
else
{
    /* 取得商品类型名称 */
    $sql = "SELECT cat_name FROM ".$ecs->table('goods_type')." WHERE cat_id = '$cat_id'";
    $cat_name = $db->GetOne($sql);
    $condition[0]['name'] = $cat_name;

    $picks[] = array('name'=>'<strong>'.$_LANG['goods_type'].':</strong><br />'.$cat_name, 'url'=>'pick_out.php');

    $attr_picks = array(); //选择过的attr_id

    /* 处理属性,获取满足属性的goods_id */
    if (!empty($_GET['attr']))
    {
        $attr_table = '';
        $attr_where = '';
        $attr_url   = '';
        $i = 0;
        $goods_result = '';
        foreach ($_GET['attr'] AS $key => $value)
        {
            $attr_url .= '&attr[' . $key . ']=' . $value;

            $attr_picks[] = $key;
            if ($i > 0)
            {
                if (empty($goods_result))
                {
                    break;
                }
                $goods_result = $db->getCol("SELECT goods_id FROM " . $ecs->table("goods_attr") . " WHERE goods_id IN (" . implode(',' , $goods_result) . ") AND attr_id='$key' AND attr_value='$value'");
            }
            else
            {
                $goods_result = $db->getCol("SELECT goods_id FROM " . $ecs->table("goods_attr") . " WHERE attr_id='$key' AND attr_value='$value'");
            }
            $i++;
        }

        /* 获取指定attr_id的名字 */
        $sql = "SELECT attr_id, attr_name FROM ".$ecs->table('attribute')." WHERE attr_id ".db_create_in(implode(',',$attr_picks));
        $rs = $db->query($sql);
        while ($row = $db->fetchRow($rs))
        {
            $picks[] = array('name'=>'<strong>'.$row['attr_name'].':</strong><br />'.urldecode($_GET['attr'][$row['attr_id']]), 'url'=>'pick_out.php?cat_id='.$cat_id.search_url($attr_picks, $row['attr_id']));
        }

        /* 查出数量 */
        $goods_count = count($goods_result);
        /* 获取符合条件的goods_id */
        $in_goods = 'AND g.goods_id '.db_create_in(implode(',', $goods_result));
    }
    else
    {
        /* 仅选择了商品类型的情况 */

        /* 查出数量 */
        $goods_count = $db->GetOne("SELECT COUNT(distinct(g.goods_id)) FROM ".$ecs->table('goods_attr')." AS g, ".$ecs->table('attribute')." AS a WHERE g.attr_id = a.attr_id AND a.cat_id = '$cat_id' ");

        /* 防止结果过大，最多只查出前100个goods_id */

        $sql = "SELECT DISTINCT g.goods_id FROM ".$ecs->table('goods_attr')." AS g, ".$ecs->table('attribute')." AS a WHERE g.attr_id = a.attr_id AND a.cat_id = '$cat_id' LIMIT 100";
        $in_goods = $db->GetCol($sql);
        $in_goods = 'AND g.goods_id '.db_create_in(implode(',', $in_goods));

    }

    /* 获取符合条件的属性 */
    $sql = "SELECT DISTINCT a.attr_id FROM ".$ecs->table('goods_attr')." AS g, ".$ecs->table('attribute') ." AS a ".
           "WHERE a.attr_id = g.attr_id " . $in_goods;

    $in_attr = $db->GetCol($sql); // 符合条件attr_id;
    $in_attr = array_diff($in_attr, $attr_picks); // 除去已经选择过的attr_id
    $in_attr = 'AND g.attr_id '.db_create_in(implode(',', $in_attr));

    /* 获取所有属性值 */
    $sql = "SELECT DISTINCT g.attr_id, a.attr_name, g.attr_value FROM ".$ecs->table('goods_attr')." AS g, ".$ecs->table('attribute') ." AS a WHERE a.attr_id = g.attr_id ".$in_attr.$in_goods;
    $rs = $db->query($sql);

    while ($row = $db->fetchRow($rs))
    {
        if (empty($condition[0]['cat'][$row['attr_id']]['cat_name']))
        {
            $condition[0]['cat'][$row['attr_id']]['cat_name'] = $row['attr_name'];
        }
        $condition[0]['cat'][$row['attr_id']]['list'][] = array('name'=>$row['attr_value'], 'url'=>'pick_out.php?cat_id='.$cat_id.search_url($attr_picks).'&amp;attr['.$row['attr_id'].']='.urlencode($row['attr_value']));
    }

    /* 生成更多商品的url */
    $url = "search.php?pickout=1&amp;cat_id=".$cat_id.search_url($attr_picks);

}

/* 显示商品 */
$goods = array();
$sql   = "SELECT g.goods_id, g.goods_name, g.market_price, g.shop_price AS org_price, ".
            "IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ".
            "g.promote_price, promote_start_date, promote_end_date, g.goods_brief, g.goods_thumb ".
        "FROM " .$ecs->table('goods'). " AS g ".
        "LEFT JOIN " . $GLOBALS['ecs']->table('member_price') . " AS mp ".
            "ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' ".
        "WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 ".$in_goods.
        "ORDER BY g.sort_order, g.last_update DESC";
$res = $db->SelectLimit($sql, 4);

/* 获取品牌 */
$sql = "SELECT b.brand_id, b.brand_name, b.brand_logo, COUNT(g.goods_id) AS goods_num ".
       " FROM " . $ecs->table('goods') . " AS g ".
       " LEFT JOIN " . $ecs->table('brand') . " AS b ON g.brand_id=b.brand_id ".
       " WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0 AND b.brand_id > 0 " . $in_goods .
       " GROUP BY g.brand_id ";

$brand_list = $db->getAll($sql);
foreach ($brand_list as $key=>$val)
{
    $brand_list[$key]['url'] = $url . '&amp;brand=' . $val['brand_id'];
}

/* 获取分类 */
$sql = "SELECT c.cat_id, c.cat_name, COUNT(g.goods_id) AS goods_num ".
       " FROM " . $ecs->table('goods') . " AS g ".
       " LEFT JOIN " . $ecs->table('category') . " AS c ON c.cat_id = g.cat_id ".
       " WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND g.is_delete = 0  " . $in_goods .
       " GROUP BY g.cat_id ";

$cat_list = $db->getAll($sql);

foreach ($cat_list as $key=>$val)
{
    $cat_list[$key]['url'] = $url . '&amp;category=' . $val['cat_id'];
}


$idx = 0;
while ($row = $db->fetchRow($res))
{
   if ($row['promote_price'] > 0)
   {
        $promote_price = bargain_price($row['promote_price'], $row['promote_start_date'], $row['promote_end_date']);
    }
    else
    {
        $promote_price = 0;
    }

    $goods[$idx]['id']            = $row['goods_id'];
    $goods[$idx]['name']          = $row['goods_name'];
    $goods[$idx]['short_name']    = $_CFG['goods_name_length'] > 0 ? sub_str($row['goods_name'], $_CFG['goods_name_length']) : $row['goods_name'];
    $goods[$idx]['market_price']  = $row['market_price'];
    $goods[$idx]['shop_price']    = price_format($row['shop_price']);
    $goods[$idx]['promote_price'] = $promote_price > 0 ? price_format($promote_price) : '';
    $goods[$idx]['brief']         = $row['goods_brief'];
    $goods[$idx]['thumb']         = get_image_path($row['goods_id'], $row['goods_thumb'], true);
    $goods[$idx]['url']           = build_uri('goods', array('gid'=>$row['goods_id']), $row['goods_name']);

    $idx++;
}

$picks[] = array('name'=>$_LANG['remove_all'], 'url'=>'pick_out.php');

assign_template();
$position = assign_ur_here(0, $_LANG['pick_out']);
$smarty->assign('page_title',       $position['title']);    // 页面标题
$smarty->assign('ur_here',          $position['ur_here']);  // 当前位置

$smarty->assign('brand_list',       $brand_list);       //品牌
$smarty->assign('cat_list',         $cat_list);        //分类列表

$smarty->assign('categories',       get_categories_tree()); // 分类树
$smarty->assign('helps',            get_shop_help());  // 网店帮助
$smarty->assign('top_goods',        get_top10());      // 销售排行
$smarty->assign('data_dir',         DATA_DIR);  // 数据目录

/* 调查 */
$vote = get_vote();
if (!empty($vote))
{
    $smarty->assign('vote_id', $vote['id']);
    $smarty->assign('vote',    $vote['content']);
}

assign_dynamic('pick_out');

$smarty->assign('url',           $url);
$smarty->assign('pickout_goods', $goods);
$smarty->assign('count',         $goods_count);
$smarty->assign('picks',         $picks);
$smarty->assign('condition',     $condition);
$smarty->display('pick_out.dwt');

/**
 *  生成搜索的链接地址
 *
 * @access  public
 * @param   int        attr_id        要排除的attr_id
 *
 * @return string
 */
function search_url(&$attr_picks, $attr_id = 0)
{
    $str = '';
    foreach ($attr_picks AS $pick_id)
    {
        if ($pick_id != $attr_id)
        {
            $str .= '&amp;attr['.$pick_id.']='.urlencode($_GET['attr'][$pick_id]);
        }
    }

    return $str;
}

?>