jucai/app/Http/Controllers/Mobile/Lottery/LotteryController.php

<?php

namespace App\Http\Controllers\Mobile\Lottery;

use App\Http\Controllers\Mobile\MobileBaseController;
use App\Models\LotteryLog;
use App\Models\LotteryPrize;
use App\Models\LotteryWin;
use App\Models\Thirdlogin;
use App\Services\Auth\AuthService;
use App\Services\Common\WechatService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;

class LotteryController extends MobileBaseController
{
    /**
     * @var WechatService
     */
    private $wechatService;
    /**
     * @var AuthService
     */
    private $authService;

    public function __construct(WechatService $wechatService, AuthService $authService)
    {
        $this->wechatService = $wechatService;
        $this->authService   = $authService;
    }

    /**
     * 微信登录
     */
    public function login(Request $request)
    {
        //type:web-电脑端,mobile-手机端,
        $app_id       = subsite_config('aix.system.oauth.wechat_official.app_id');
        $redirect_uri = urlencode(route('mobile.lottery.wechat_back'));
        $type         = $request->input('type', 1);
        $wechat_url   = "https://open.weixin.qq.com/connect/oauth2/authorize?appid={$app_id}&redirect_uri={$redirect_uri}&response_type=code&scope=snsapi_userinfo&state={$type}#wechat_redirect";
        return redirect($wechat_url);
    }

    /**
     * 微信回调
     */
    public function wechat_back(Request $request)
    {
        //微信登录
        $officialAccount = $this->wechatService->getOfficialAccount();
        $wechatUser      = $officialAccount->oauth->user()->getOriginal();
        $thirdlogin      = Thirdlogin::where('openid', $wechatUser['openid'])->first();
        if (!$thirdlogin && $wechatUser['unionid']) {
            $thirdlogin = Thirdlogin::where('unionid', $wechatUser['unionid'])->first();
        }
        if ($thirdlogin) {
            $member = $thirdlogin->member()->withTrashed()->first();
            $this->authService->login($member, 1);
        } else {
            Session::put('open_id', $wechatUser['openid']);
            Session::put('union_id', $wechatUser['unionid'] ?: '');
            Session::save();
        }
        $type = $request->input('state', 1);
        $url  = route('mobile.active.spring', ['type' => $type]);
        return redirect($url);
    }

    /**
     * 抽奖页
     */
    public function index(Request $request)
    {
        //是否登录
        $user = auth('web-member')->user();
        if (empty($user)) {
            $open_id = Session::get('open_id');
            if (empty($open_id)) {
                return redirect(route('mobile.lottery.login'));
            }
        } else {
            $third   = Thirdlogin::where('uid', $user->id)->first();
            $open_id = $third['openid'];
        }

//        $open_id = '11';
        //抽奖次数
        $type   = $request->input('type', 1);
        $date   = date('Y-m-d');
        $log    = LotteryLog::where([
            ['create_time', '=', $date],
            ['type', '=', $type],
            ['open_id', '=', $open_id],
        ])->first();
        $number = 1;
        if (!empty($log)) {
            $number = 0;
        }

        //奖品列表
        $prize       = LotteryPrize::all();
        $ids         = [];
        $restaraunts = [];
        $colors      = [];
        $images      = [];
        foreach ($prize as $v) {
            $ids[]         = $v->id;
            $restaraunts[] = $v->prize_name;
            $colors[]      = $v->prize_bg;
            $images[]      = upload_asset($v->prize_image);
        }


        $return_data = [
            'open_id'     => $open_id,
            'current_url' => \Illuminate\Support\Facades\Request::getRequestUri(),
            'number'      => $number,
            'type'        => $type,
            'prize'       => $prize,
            'ids'         => $ids,
            'restaraunts' => $restaraunts,
            'colors'      => $colors,
            'images'      => $images,
            'wap_title'   => '抽奖',
            'share_title' => '抽奖',
            'share_desc'  => '找工作还可抽奖',
            'share_link'  => route('mobile.lottery.login'),
        ];

        return view('mobile.app.lottery.index', $return_data);
    }

    /**
     * 抽奖
     */
    public function lottery_post(Request $request)
    {
        //抽奖次数
        $data = $request->all();
        $date = date('Y-m-d');
        $log  = LotteryLog::where([
            ['create_time', '=', $date],
            ['type', '=', $data['type']],
            ['open_id', '=', $data['open_id']],
        ])->first();
        if (!empty($log)) {
            return response()->json(['status' => 0, 'msg' => '您今天已抽过奖，请明天再来！']);
        }
        LotteryLog::create([
            'create_time' => $date,
            'type'        => $data['type'],
            'number'      => 1,
            'open_id'     => $data['open_id'],
        ]);

        //奖品列表
        $model     = new LotteryPrize();
        $prize_arr = $model->where('prize_number', '>', 0)->get();
        $arr       = [];
        foreach ($prize_arr as $key => $val) {
            $arr[$val['id']] = $val['prize_odds'] * 100;
        }
        $rid = $this->_get_rand($arr); //根据概率获取奖项id

        //增加奖品
        $prize_win = $model->where('id', $rid)->first();
        $prize_win->prize_number--;
        $prize_win->save();
        $user = auth('web-member')->user();
        if (empty($user)) {
            Session::put('prize_id', $rid);
            Session::save();
        } else {
            $prize           = LotteryPrize::where('id', $rid)->first();
            $win             = new LotteryWin();
            $win->member_id  = $user->id;
            $win->prize_id   = $rid;
            $win->prize_name = $prize->prize_name;
            $win->created_at = date('Y-m-d H:i:s');
            $win->save();
        }

        return response()->json(['status' => 1, 'msg' => '恭喜你，获得' . $prize_win->prize_name, 'id' => $rid]);
    }

    private function _get_rand($proArr)
    {
        $result = '';
        //概率数组的总概率精度
        $proSum  = array_sum($proArr);
        $randNum = mt_rand(1, $proSum);
        //概率数组循环
        foreach ($proArr as $key => $proCur) {
            $randNum = mt_rand(1, $proSum);
            if ($randNum <= $proCur) {
                $result = $key;
                break;
            } else {
                $proSum -= $proCur;
            }
        }
        return $result;
    }
}