<?php
namespace app\controller;

use app\BaseController;
use think\facade\Db;

//游戏控制器
class Game extends BaseController
{
    protected $noNeedLogin = ['getCategory', 'getGamesByCategory', 'getGameById', 'searchGame', 'getHotSearchKeywords', 'recommendedGames'];
    
    //获取游戏分类
    public function getCategory()
    {
        $data = Db::table('tb_game_category')
            ->order('priority ASC')
            ->select();
        $this->success('success', $data);
    }
    
    //根据分类获取游戏
    public function getGamesByCategory()
    {
        $categoryId = $this->request->post('categoryId');   //分类ID
        $page = $this->request->post('page');   // 当前页码
        $pageNum = $this->request->post('pageNum');         //每页显示的数据条数
        if (!is_numeric($categoryId) || !is_numeric($pageNum)) {
            $this->fail(500, '参数校验错误');
        }
        $games = Db::table('tb_game')
            ->field('id,title,image_url,description,buy_count,browse,price')
            ->where(['category' => $categoryId])
            ->paginate([
                'page' => $page,
                'list_rows' => $pageNum
            ]);
        $this->success('success', $games);
    }
    
    //根据游戏ID获取游戏
    public function getGameById()
    {
        $gameId = $this->request->post('gameId');
        if (!is_numeric($gameId)) {
            $this->fail(500, 'gameId参数校验错误');
        }
        $data = Db::table('tb_game')
            ->where(['id' => $gameId])
            ->find();
        if (!$data) {
            $this->fail(500, 'gameId不存在');
        }
        //浏览次数+1
        Db::table('tb_game')
            ->where(['id' => $gameId])
            ->update([
                'browse' => $data['browse'] + 1,
            ]);
        unset($data['download_url']);
        unset($data['extracted_code']);
        $this->success('success', $data);
    }
    
    //购买游戏
    public function buyGame()
    {
        $gameId = $this->request->post('gameId');
        if (!is_numeric($gameId)) {
            $this->fail(500, 'gameId参数校验错误');
        }
        $game = Db::table('tb_game')
            ->where(['id' => $gameId])
            ->find();
        if (!$game) {
            $this->fail(501, 'gameId不存在');
        }
        $user = Db::table('tb_user')
            ->where(['id' => $this->getUser()->user_id])
            ->find();
        if ($user['balance'] < $game['price']) {
            $this->fail(502, '余额不足无法购买');
        }
        //避免重复购买同一款游戏
        $userGame = Db::table('tb_user_game')
            ->where(['user_id' => $this->getUser()->user_id])
            ->where(['game_id' => $gameId])
            ->find();
        if ($userGame) {
            $this->fail(503, '您已经购买过此款游戏了');
        }
        //减少余额
        Db::table('tb_user')
            ->where(['id' => $this->getUser()->user_id])
            ->update(['balance' => $user['balance'] - $game['price']]);
        //购买到记录
        Db::table('tb_user_game')
            ->insert([
                'user_id'    => $this->getUser()->user_id,
                'game_id'    => $gameId,
                'price'      => $game['price'],
                'created_at' => time(),
                'channel'    => 1,  //站内直购
            ]);
        $this->success('success', null);
    }
    
    //获取我已经购买的游戏，包括cdkey兑换
    public function getMyBoughtGames()
    {
        $page = $this->request->post('page');         //页码
        $pageNum = $this->request->post('pageNum');         //每页显示的数据条数
        if (!is_numeric($pageNum) || !is_numeric($page)) {
            $this->fail(500, 'page或pageNum参数校验错误');
        }
        $data = Db::table('tb_user_game')
            ->alias('ug')
            ->join('tb_game g', 'ug.game_id = g.id')
            ->where(['ug.user_id' => $this->getUser()->user_id])
            ->field('ug.*,g.title as game_title,g.image_url as game_image_url,g.description as game_description')
            ->paginate([
                'page' => $page,
                'list_rows' => $pageNum,
            ]);
        $this->success('success', $data);
    }
    
    //电商渠道购买，兑换购买的游戏
    public function exchangeCdKeyGame()
    {
        $cdKey = $this->request->post('cdKey');
        if (empty($cdKey)) {
            $this->fail(500, 'cdKey参数校验错误');
        }
        $data = Db::table('tb_cdkey')
            ->where(['cdkey' => $cdKey])
            ->find();
        if (!$data) {
            $this->fail(501, 'cdKey不存在');
        }
        if ($data['state'] == 1) {
            $this->fail(502, 'cdKey已经使用过');
        }
        //如果过期了做一下更新
        if ($data['expired_at'] < time()) {
            Db::table('tb_cdkey')
                ->where(['id' => $data['id']])
                ->update(['state' => 2]);
            $data['state'] = 2;
        }
        if ($data['state'] == 2) {
            $this->fail(503, 'cdKey已经过期');
        }
        //使用cdKey
        Db::table('tb_cdkey')
            ->where(['id' => $data['id']])
            ->update([
                'state'  => 1,
                'use_at' => time(),
            ]);
        //兑换购买渠道选择
        $channel = 2;
        if (str_starts_with($data['cdkey'], 'tb')) {
            $channel = 2;
        } elseif (str_starts_with($data['cdkey'], 'pdd')) {
            $channel = 3;
        }
        //获取游戏的价格
        $game = Db::table('tb_game')
            ->where(['id' => $data['game_id']])
            ->find();
        $price = $game['price'];
        //购买游戏
        Db::table('tb_user_game')
            ->insert([
                'user_id'    => $this->getUser()->user_id,
                'game_id'    => $data['game_id'],
                'price'      => $price,
                'channel'    => $channel,
                'created_at' => time(),
            ]);
        $this->success('success', [
            'gameId' => $data['game_id'],
        ]);
    }
    
    //获取我使用过的兑换码
    public function getMyUsedCdKey()
    {
        $pageNum = $this->request->post('pageNum');   //每页显示的数据条数
        if (!is_numeric($pageNum)) {
            $this->fail(500, 'pageNum参数校验错误');
        }
        $data = Db::table('tb_cdkey')
            ->where(['user_id' => $this->getUser()->user_id])
            ->where(['state'   => 1])
            ->paginate($pageNum);
        $this->success('success', $data);
    }
    
    //搜索游戏
    public function searchGame()
    {
        $keywords = $this->request->post('keywords'); //关键字
        if (empty($keywords)) {
            $this->fail(500, '关键字不能为空');
        }
        if (strlen($keywords) >= 100) {
            $this->fail(501, '关键字长度超限');
        }
        $data = Db::table('tb_game')
            ->where('title', 'like', '%' . $keywords . '%')
            ->select();
        Db::table('tb_search_keywords')
            ->insert([
                'keywords'   => $keywords,
                'created_at' => time(),
            ]);
        $this->success('success', [
            'count' => count($data),
            'data'  => $data,
        ]);
    }
    
    //获取热搜关键字
    public function getHotSearchKeywords()
    {
        $data = Db::table('tb_search_keywords')
            ->order('created_at DESC')
            ->limit(5)
            ->select();
        $this->success('success', $data);
    }
    
    // 根据CDKey获取游戏下载地址以及提取码
    public function getGameDownloadForCDkey()
    {
        $cdkey = $this->request->post('cdkey');
        if (!$cdkey) {
            $this->fail('请填写正确的cdkey！', 500);
        }
        // 校验CDKey是否存在以及CDkey状态
        $row = Db::table('tb_cdkey')->where('cdkey', $cdkey)->find();
        if (!$row) {
            $this->fail('cdkey不存在！', 500);
        }
        // if ($row['state'] != 0) {
        //     $this->fail('cdkey已使用或已过期！', 500);
        // }
        // 校验通过 返回对应游戏下载地址与提取码以及更新CDkey状态
        // 查询对应游戏信息
        $game = Db::table('tb_game')->where('id', $row['game_id'])->find();
        if (!$game) {
            $this->fail('对应游戏不存在！请与管理员联系！', 500);
        }
        // Db::table('tb_cdkey')->where('cdkey', $cdkey)->update(['state' => 1]);
        $data = ['download_url' => $game['download_url'], 'extracted_code' => $game['extracted_code']];
        $this->success('success', $data);
    }
    
    //推荐游戏（最多只显示5个）
    public function recommendedGames()
    {
        $gameId = $this->request->post('gameId');
        if (!is_numeric($gameId)) {
            $this->fail(500, 'gameId参数校验错误');
        }
        //优先推荐优先级靠前的同类型游戏
        $game = Db::table('tb_game')
            ->where(['id' => $gameId])
            ->find();
        if (!$game) {
            $this->fail(501, '找不到对应的gameId');
        }
        // $categoryId = $game['id'];
        $categoryId = $game['category'];
        //只返回推荐关键信息，不要返回下载链接，提取码等重要信息
        $data = Db::table('tb_game')
            ->field('id,category,title,image_url,price,created_at,updated_at')
            ->where(['category' => $categoryId])
            ->order('priority ASC')
            ->limit(5)
            ->select();
        $this->success('success', $data);
    }

    // 获取指定用户的库存游戏
    public function getGameByUserId()
    {
        $page = $this->request->post('page');   // 当前页数
        $list = $this->request->post('list');   // 每页记录数
        $user_id = $this->request->post('user_id'); // 用户ID
        if (!is_numeric($user_id)){
            $this->fail(500, '用户ID未找到');
        }
        // 用户验证
        $user = Db::table('tb_user')->where('id', $user_id)->find();
        if (!$user) {
            $this->fail(500, '用户不存在！');
        }
        // 查找用户绑定的游戏
        $data = Db::table('tb_game_bind_record')
            ->alias('tgbr')
            ->where('tgbr.user_id', $user_id)
            ->join('tb_game tg', 'tgbr.game_id = tg.id')
            ->field('tgbr.*, tg.title, tg.image_url, tg.game_version, tg.browse, tg.language')
            ->paginate([
                'page' => $page,
                'list_rows' => $list,
            ]);
        // foreach($data->getCollection()->toArray() as &$item) {
        //     exit($item['avatar']);
        //     $item['avatar'] = $this->getUserAvatar($item['avatar']);
        // }
        $this->success('success', $data);
    }
}