<?php

namespace app\common\logic;
use app\common\model\OfflineRechargeRecordModel;
use app\common\model\OfflineRechargeVerifyModel;
use app\common\model\ParametersModel;
use app\common\model\ServersModel;
use app\common\model\UserModel;
use fast\Http;
use fast\RechargeOrderType;
use fast\RechargeStatus;
use fast\RechargeType;
use think\Cache;
use think\Env;
use think\Log;

/**
 * 币安链API
 */
class BscApi
{
    protected $transactionLimt = 1;//识别到的最小到账金额，低于此值的到账金额不入账

    protected $bsc_api_key = '8TP62I7UJF2AY7TAH3TAR4R3IM7N9ZCHP2';
    protected $bsc_api_url = 'https://api.etherscan.io/v2/api?chainid=56';//56为币安链主网ID
    protected $contract_address = '0x55d398326f99059ff775485246999027b3197955';//交易币种的合约地址，默认为usdt的：0x55d398326f99059ff775485246999027b3197955，测试合约：0xcf3271b1be72f834e4dd35b9d558d583894473f1
    /**
     * value的放大比例 固定为: 10的18次方
     * @var int
     */
    private string $valueScale = '1000000000000000000';

    public function __construct($contract_address = '') {
        // 初始化逻辑代码
        $key = Env::get('rental.bsc_api_key');
        if(!empty($key)){
            $this->bsc_api_key = $key;
        }
        if(empty($contract_address)){
            $contract_address = $this->contract_address;
        }
        $this->contract_address = strtolower($contract_address);//转小写
    }

    /**
     * 根据哈希查看交易详情
     *
     * 此接口为抓取币安浏览器页面html代码而来
     * 访问地址：https://bscscan.com/tx/0x48351c4c215645f2404741343c9be17b0ce494d70a7dba1bf11d1f5c2311de57
     */
    public function getInfoByTransactionHash($tx_hash = '0x48351c4c215645f2404741343c9be17b0ce494d70a7dba1bf11d1f5c2311de57')
    {
        if(empty($tx_hash)){
            return _error('hash不能为空');
        }
        // 读取远程页面地址
        $url =  $this->bsc_api_url . "tx/" . $tx_hash;
        dump($url);
        // 使用 file_get_contents 函数读取远程页面
        //$html = file_get_contents($url);
        $html = Http::get($url);

        if(empty($html)){
            return _error('bscscan.com访问失败');
        }
//        dump($html);

        $dom = new \DOMDocument();
        libxml_use_internal_errors(true);//关掉错误提醒
        $dom->loadHTML($html);
        libxml_clear_errors();

        $get_html_value = $dom->getElementById('spanTxHash');
        if(empty($get_html_value)){
            return _error('当前页面没找到hash');
        }
        $resp['hash'] = $get_html_value->nodeValue;

        //$get_html_value = '<a class="text-break me-2" href="/address/' . $this->contract_address . '">' . $this->contract_address . '</a>';
        //$get_html_value = '<a class="me-1" href="/token/' . $this->contract_address . '" target="_parent">BSC-USD</a>';
        $get_html_value = '<a data-highlight-value data-highlight-target="' . $this->contract_address . '" class="d-flex align-items-center gap-0.5" href="/token/' . $this->contract_address . '">';

        if (!(strstr($html, $get_html_value))) {
            Log::error('合约地址和配置信息不相符:' . $tx_hash);
            return _error('合约地址和配置信息不相符');
        }

        $xpath = new \DOMXPath($dom);

        $get_html_value = $xpath->query('//span[@class="badge bg-success bg-opacity-10 border border-success border-opacity-25 text-green-600 fw-medium text-start text-wrap py-1.5 px-2"]');
        if ($get_html_value->length > 0 && $get_html_value->item(0)->nodeValue == 'Success') {
            $resp['pay_status'] = 1;
        } else {
            return _error('交易失败');
        }

        $get_html_value = $xpath->query('//span[@class="me-1"]');
        if ($get_html_value->length > 0) {
            $amount = $get_html_value->item(1)->nodeValue;//所有 span class='me-1' 的元素中，第二个就是额度，超过1000会有 逗号分割
            $resp['amount'] = str_replace(',', "", $amount);
        } else {
            return _error('当前页面没找到交易额度');
        }

        $get_html_value = $dom->getElementById('chunk_decodeori_0_1');
        if(empty($get_html_value)){
            return _error('当前页面没找到from_address');
        }
        $resp['from_address'] = strtolower($get_html_value->nodeValue);//转小写

        $get_html_value = $dom->getElementById('chunk_decodeori_0_2');
        if(empty($get_html_value)){
            return _error('当前页面没找到to_address');
        }
        $resp['to_address'] = strtolower($get_html_value->nodeValue);
        return _success($resp);
    }

    /**
     * 根据钱包地址查询交易记录
     *
     * 通过接口拿到数据，便利交易数据，返回可用格式
     *
     * 此接口为抓取币安交易所API
     * 使用前需要在交易所申请 bsc_api_key
     * 数据请求地址：https://api.bscscan.com/api?module=account&action=tokentx&contractaddress=0x55d398326f99059ff775485246999027b3197955&page=1&offset=10000&endblock=99999999&apikey=VTCKIP346DCRWB6JNS4KDANUJJEQN9VAKW&address=0xca3dfc6d52131bd0df91a6302e48df5f50288256&startblock=33138777
     * 请求地址参数：https://api.bscscan.com/api?
     * module=account //固定值
     * &action=tokentx //固定值
     * &contractaddress= 合约地址
     * &page=1  //页数
     * &offset=10000 //每页条数
     * &startblock=33138777 //起始区块
     * &endblock=99999999   //结束区块
     * &apikey=币安交易所apikey
     * &address=0xca3dfc6d52131bd0df91a6302e48df5f50288256 //查询钱包地址
     *
     * 数据返回格式
     * {
     * "status":"1",
     * "message":"OK",
     * "result":[
     * {
     * "blockNumber":"33138803",
     * "timeStamp":"1698920688",
     * "hash":"0x0e1d85533edb27e8ee246721145eb15c439d943315608e837cd0dbff9b80d7a2",
     * "nonce":"9",
     * "blockHash":"0x986e923d94cb9390f7de8054ba9db3bdd0abf37a6c52ca7b28f3f79dd87b33a8",
     * "from":"0x86daae6c4dac3cd8a56191af7ea1d13546538dbe",
     * "contractAddress":"0x55d398326f99059ff775485246999027b3197955",
     * "to":"0xca3dfc6d52131bd0df91a6302e48df5f50288256",
     * "value":"400000000000000000000",
     * "tokenName":"Binance-Peg BSC-USD",
     * "tokenSymbol":"BSC-USD",
     * "tokenDecimal":"18",
     * "transactionIndex":"17",
     * "gas":"52224",
     * "gasPrice":"5000000000",
     * "gasUsed":"47424",
     * "cumulativeGasUsed":"1297987",
     * "input":"deprecated",
     * "confirmations":"3883"
     * },
     * {…………},
     * {…………},
     * ]
     * }
     * @$address  查询地址
     * @$from_to  是查询付款交易（from），还剩收款交易（to）,默认from
     */
    public function getTransactionRecordsByAddress(string $from, string $to, int $start_block, int $end_block = 99999999)
    {
        if(empty($from) && empty($to)){
            return _error('钱包地址不能都为空');
        }

        $from = strtolower($from);
        $to = strtolower($to);

        $address = $from;
        if(empty($from)){
            $address =$to;
        }

        // 读取远程页面地址
        $url = $this->bsc_api_url . "&module=account&action=tokentx&contractaddress=" . $this->contract_address;
        $url .= "&page=1&offset=10000&endblock=" . $end_block ."&apikey=" . $this->bsc_api_key;
        $url .= "&startblock=" . $start_block . "&address=" . $address;
        Log::log($url);
        $body = Http::get($url);
        if (empty($body)) {
            Log::log('api返回内容为空');
            return _error('api返回内容为空');
        }

        // 转成数组
        $rsArr = json_decode($body, true);
        if (empty($rsArr) || !is_array($rsArr)) {
            Log::log('api返回数据异常，json decode失败');
            return _error('api返回数据异常');
        }

        if ($rsArr['status'] != '1') {
            if($rsArr['message'] == 'No transactions found'){
                Log::log('无交易记录:' . $rsArr['message']);
                return _success();
            }
            Log::log('api返回status不为1,错误信息:' . $rsArr['message']);
            return _error('api返回status不为1,错误信息:' . $rsArr['message']);
        }

        $success_arr   = [];
        // 查询匹配交易列表
        foreach ($rsArr['result'] as $v) {

            if (strtolower($v['contractAddress']) != $this->contract_address) {
                continue;//合约地址不相符，不处理。一般币种为USDT的合约地址：0x55d398326f99059ff775485246999027b3197955
            }

            $amount = bcdiv($v['value'], $this->valueScale, 6);//交易金额
            if(!($amount > 0)){
                continue;//交易金额必须大于0
            }

            $info = [
                'hash'         => $v['hash'],
                'from'         => strtolower($v['from']),//转小写
                'to'           => strtolower($v['to']),
                'contract'     => $v['contractAddress'],
                'amount'       => $amount,
                'block_number' => $v['blockNumber'],
                'time'         => $v['timeStamp'],
            ];

            if(!empty($from) && !empty($to)){
                if($info['from'] == $from && $info['to'] == $to){
                    //判断交易是否成功
                    $rsData = $this->getHashStatus($info['hash']);
                    if($rsData['code'] == 0){//当前哈希交易状态为失败，跳出循环，等待下次判断，若真是失败交易，过几分钟后，这个数据不会再出现，这个接口拿到的都是有效的交易数据
                        continue;//当前交易失败
                    }
                    Log::log('成功1单');
                    $success_arr[] = $info;
                }
            }elseif (!empty($from)){
                if($info['from'] == $from){
                    //判断交易是否成功
                    $rsData = $this->getHashStatus($info['hash']);
                    if($rsData['code'] == 0){
                        continue;//当前交易失败
                    }
                    $success_arr[] = $info;
                }
            }elseif (!empty($to)){
                if($info['to'] == $to){
                    //判断交易是否成功
                    $rsData = $this->getHashStatus($info['hash']);
                    if($rsData['code'] == 0){
                        continue;//当前交易失败
                    }
                    $success_arr[] = $info;
                }
            }
        }

        return _success($success_arr);
    }

    /**
     * 获取哈希地址成功状态
     *
     * api接口返回数据格式
     * {
    "status": "1",
    "message": "OK",
    "result": {
    "status": "1"
    }
    }
     * @param $orderInfo
     * @return array|string
     */
    public function getHashStatus($tx_hash):array
    {
        if (empty($tx_hash)) {
            return _error('hash值不能为空');
        }

        $url = $this->bsc_api_url . "&module=transaction&action=gettxreceiptstatus";
        $url .= "&apikey=" . $this->bsc_api_key;
        $url .= "&txhash=" . $tx_hash;

        $body = Http::get($url);
        if (empty($body)) {
            return _error('状态api返回内容为空');
        }
        // 转成数组
        $rsArr = json_decode($body, true);
        if (empty($rsArr) || !is_array($rsArr)) {
            return _error('状态api返回数据异常，json转换失败');
        }

        if ($rsArr['status'] != '1') {
            return _error('状态api返回status不为1,当前值为:' . $rsArr['status']);
        }

        if ($rsArr['result']['status'] != 1) {
            return _error('状态api返回result中的status不为1,当前值为:' . $rsArr['result']['status']);
        }

        return _success();
    }

    /**
     * 根据时间戳获取最近的区块高度
     *
     * api接口返回数据格式
     * {
    "status": "1",
    "message": "OK",
    "result": "33164048"
    }
     * @param $orderInfo
     * @return array|string
     */
    public function getBlockNoByTime($time):array
    {
        if(!Cache::has('block_' . $time)){
            if (empty($time)) {
                return _error('时间戳不能为空');
            }

            //https://api.bscscan.com/api?module=block&action=getblocknobytime&timestamp=1601510400&closest=before&apikey=YourApiKeyToken

            $url = $this->bsc_api_url . "&module=block&action=getblocknobytime&";
            $url .= "&closest=before";//closest 值还有个参数 after 控制返回接近时间戳之前还是之后的区块高度
            $url .= "&apikey=" . $this->bsc_api_key;
            $url .= "&timestamp=" . $time;
            dump($url);
            $body = Http::get($url);
            if (empty($body)) {
                return _error('获取区块高度api返回内容为空');
            }
            // 转成数组
            $rsArr = json_decode($body, true);
            if (empty($rsArr) || !is_array($rsArr)) {
                return _error('获取区块高度api返回数据异常，json转换失败');
            }

            if ($rsArr['status'] != '1') {
                return _error($rsArr['message'] . ' -- ' . $rsArr['result']);
            }


            Cache::set('block_' . $time, _success($rsArr['result']), 3600);
        }
        //获取开始预约前的区块高度
        return Cache::get('block_' . $time);
    }

    public function getBlcokNoByCache($time){
        if(!Cache::has('block')){
            $get_block = (new BscApi())->getBlockNoByTime($start_time);
            if($get_block['code'] == 0){
                Log::info($get_block['msg'] . date('Y-m-d H:i:s'));
                dump('获取区块高度有误');
                dump($get_block);
                return;
            }
            Cache::set('block', $get_block['data'], 3600);
        }
        //获取开始预约前的区块高度
        $start_block = Cache::get('block');
    }

    /**
     * 获取钱包地址的BNB余额
     *
     * api接口返回数据格式
     * {
    "status": "1",
    "message": "OK",
    "result": "4156708818000000"
     * }
     * @param $orderInfo
     * @return array|string
     */
    public function getBnbBalance($address):array
    {
        if (empty($address)) {
            return _error('钱包地址不能为空');
        }

        $url = $this->bsc_api_url . "&module=account&action=balance";
        $url .= "&apikey=" . $this->bsc_api_key;
        $url .= "&address=" . $address;

        $body = Http::get($url);
        if (empty($body)) {
            return _error('状态api返回内容为空');
        }
        // 转成数组
        $rsArr = json_decode($body, true);
        if (empty($rsArr) || !is_array($rsArr)) {
            return _error('状态api返回数据异常，json转换失败');
        }

        if ($rsArr['status'] != '1') {
            return _error('状态api返回status不为1,当前值为:' . $rsArr['status']);
        }

        $amount = bcdiv($rsArr['result'], $this->valueScale, 6);//交易金额

        return _success($amount);
    }

    /**
     * 获取钱包地址的代币余额
     *
     * api接口返回数据格式
     * {
    "status": "1",
    "message": "OK",
    "result": "4156708818000000"
     * }
     * @param $orderInfo
     * @return array|string
     */
    public function getTokenBalance($address, $contract_address = ''):array
    {
        if (empty($address)) {
            return _error('钱包地址不能为空');
        }
        if(empty($contract_address)){
            $contract_address = $this->contract_address;
        }

        $url = $this->bsc_api_url . "&module=account&action=tokenbalance";
        $url .= "&apikey=" . $this->bsc_api_key;
        $url .= "&address=" . $address;
        $url .= "&contractaddress=" . $contract_address;

        $body = Http::get($url);
        if (empty($body)) {
            return _error('状态api返回内容为空');
        }
        // 转成数组
        $rsArr = json_decode($body, true);
        if (empty($rsArr) || !is_array($rsArr)) {
            return _error('状态api返回数据异常，json转换失败');
        }

        if ($rsArr['status'] != '1') {
            return _error('状态api返回status不为1,当前值为:' . $rsArr['status']);
        }

        $amount = bcdiv($rsArr['result'], $this->valueScale, 6);//交易金额

        return _success($amount);
    }
}