<?php

namespace App\Servers;

use App\Models\GoodsSearch;
use App\Models\SearchStr;
use Illuminate\Support\Facades\DB;

/**
 * 商品服务
 */
class GoodsServer
{
    static private $server = '';

    private function __construct()
    {

    }

    /**
     * 创建对象
     * @return GoodsServer
     */
    static function creatServer()
    {
        if (empty(self::$server)) {
            self::$server = new  GoodsServer();
        }
        return self::$server;
    }

    /**
     * 记录搜索信息
     * @param $m_id
     * @param $shop_id
     * @param $search
     * @return bool
     */
    function setSearch($m_id,$shop_id, $search)
    {
        $search = strip_tags($search);
        $search = trim($search);
        if (empty($search)) return false;
        $search_id = SearchStr::where('search_str', $search)->where('shop_id',$shop_id)->value('id');
        if (empty($search_id)) {
            $search_info = SearchStr::create(['search_str' => $search, 'num' => 1, 'shop_id' => $shop_id]);
            GoodsSearch::create(['m_id' => $m_id, 'search_id' => $search_info->{'id'}, 'num' => 1, 'shop_id' => $shop_id]);
        } else {
            SearchStr::where('id', $search_id)->increment('num');
            $id = GoodsSearch::where('m_id', $m_id)->where('search_id', $search_id)->value('id');
            if (empty($id)) {
                GoodsSearch::create(['m_id' => $m_id, 'search_id' => $search_id, 'num' => 1, 'shop_id' => $shop_id]);
            } else {
                GoodsSearch::where('id', $id)->increment('num');
            }
        }
        return true;
    }

    /**
     * 获取搜索关键信息
     * @param $m_id
     * @param $shop_id
     * @return array
     */
    function getSearch($m_id,$shop_id)
    {
//        $hot_search = SearchStr::orderBy('type', 'desc')->orderBy('num', 'desc')->limit(10)->pluck('search_str');//热门搜索
        $hot_search = [];
        $my_search = GoodsSearch::from('goods_search as g')
            ->leftJoin('search_str as s', 's.id', '=', 'g.search_id')
            ->where('g.m_id', $m_id)
            ->where('g.shop_id', $shop_id)
            ->orderBy('g.id','desc')
            ->limit(30)
            ->pluck('s.search_str');

        return ['hot_search' => $hot_search, 'my_search' => $my_search];
    }
}