<?php

namespace services;

require_once('models/Transaction.php');
require_once('phpcommon/bignumber.php');

use models\Transaction;
use phpcommon;

class BlockChainService {

    const CURRENCY_CEG = 'CEG';
    const CURRENCY_USDC = 'USDC';
    const CURRENCY_USDT = 'USDT';

    /*
      注意!!!：
      调用方调用前需要校验actionType和myself()->_getAddress,
      非法的参数，或者签名服挂了，该函数直接中断请求，不会运行到调用方后续逻辑

      trans_id：订单id

        gameItemMallBuy
    setv
        a
        b
        c
     */

    public static function gameItemMallBuy($actionType, $currency, $price, $itemId, $itemNum)
    {
        if (!($actionType > Transaction::BUY_BEGIN_ACTION_TYPE &&
              $actionType < Transaction::BUY_END_ACTION_TYPE)) {
            error_log('gameItemMallBuy action_type error:' . $actionType);
            myself()->_rspErr(500,  'server internal error 1');
            die();
            return;
        }
        $account = myself()->_getAddress();
        if (empty($account)) {
            error_log('gameItemMallBuy address is  emtpy:' . myself()->_getAccountId());
            myself()->_rspErr(500,  'server internal error 2');
            die();
            return;
        }
        $params = array(
            'c' => 'GameItemMall',
            'a' => 'buy',
            'account' => $account,
            'currency_name' => $currency,
            'price' => $price,
            'net_id' => NET_ID
        );
        {
            $url = self::getWeb3ServiceUrl();
            $response = '';
            if (!phpcommon\HttpClient::get
                ($url,
                 $params,
                 $response)) {
                myself()->_rspErr(500,  'server internal error 3, url:' . $url);
                die();
                return;
            }
            error_log("gameItemMallBuy:" . $response . "url:" . $url);
            $rspObj = json_decode($response, true);
            if ($rspObj['errcode'] == 0) {
                $transId = $rspObj['trans_id'];
                Transaction::add(
                    $transId,
                    $actionType,
                    '', //$tokenId,
                    '', //$tokenType,
                    0, //$itemUniId,
                    $itemId, //$itemId,
                    $itemNum,
                    1
                );
                return array(
                    'trans_id' => $transId,
                    'params' => $rspObj['params']
                );
            } else {
                myself()->_rspErr(500,  'server internal error 4');
                die();
                return;
            }
        }
    }

    /*
      注意!!!：
      调用方调用前需要校验actionType和myself()->_getAddress,
      非法的参数，或者签名服挂了，该函数直接中断请求，不会运行到调用方后续逻辑

      trans_id：订单id

        gameItemMarketBuy
    setv
        a
        b
        c
     */

    public static function gameItemMarketBuy($actionType, $seller, $currency, $price, $itemId, $itemNum, $orderId)
    {
        if (!($actionType > Transaction::BUY_BEGIN_ACTION_TYPE &&
              $actionType < Transaction::BUY_END_ACTION_TYPE)) {
            error_log('gameItemMarketBuy action_type error:' . $actionType);
            myself()->_rspErr(500,  'server internal error 1');
            die();
            return;
        }
        $account = myself()->_getAddress();
        if (empty($account)) {
            error_log('gameItemMarketBuy address is  emtpy:' . myself()->_getAccountId());
            myself()->_rspErr(500,  'server internal error 2');
            die();
            return;
        }
        $params = array(
            'c' => 'GameItemMarket',
            'a' => 'buy',
            'account' => $account,
            'currency_name' => $currency,
            'price' => $price,
            'seller' => $seller,
            'order_id' => $orderId,
            'net_id' => NET_ID
        );
        {
            $url = self::getWeb3ServiceUrl();
            $response = '';
            if (!phpcommon\HttpClient::get
                ($url,
                 $params,
                 $response)) {
                myself()->_rspErr(500,  'server internal error 3, url:' . $url);
                die();
                return;
            }
            error_log("gameItemMarketBuy:" . $response . "url:" . $url);
            $rspObj = json_decode($response, true);
            if ($rspObj['errcode'] == 0) {
                $transId = $rspObj['trans_id'];
                Transaction::add(
                    $transId,
                    $actionType,
                    '', //$tokenId,
                    '', //$tokenType,
                    0, //$itemUniId,
                    $itemId, //$itemId,
                    $itemNum,
                    1
                );
                return array(
                    'trans_id' => $transId,
                    'params' => $rspObj['params']
                );
            } else {
                myself()->_rspErr(500,  'server internal error 4');
                die();
                return;
            }
        }
    }

    /*
     $price 是一个小数精确到小数点后5位
     */
    public static function formatCurrency($price)
    {
        $xiShu = 10000;
        $intPrice = $price * $xiShu;
        $formatedStr = phpcommon\bnDiv_s(phpcommon\bnMul_s($intPrice, phpcommon\bnPow_s(10, 18)), $xiShu);
        return $formatedStr;
    }

    public static function getCurrencyDecimals($currencyName)
    {
        switch ($currencyName) {
        case self::CURRENCY_CEG:
        {
            return 18;
        }
        break;
        case self::CURRENCY_USDC:
        {
            return 6;
        }
        break;
        case self::CURRENCY_USDT:
        {
            return 6;
        }
        break;
        default:
        {
            error_log("unkonw currencyName " . $currencyName);
            die();
        }
        break;
        }
    }

    /*
     $price 是一个小数精确到小数点后5位
     */
    public static function formatCurrencyEx($price, $jinDu)
    {
        $xiShu = 10000;
        $intPrice = $price * $xiShu;
        $formatedStr = phpcommon\bnDiv_s(phpcommon\bnMul_s($intPrice, phpcommon\bnPow_s(10, $jinDu)), $xiShu);
        return $formatedStr;
    }

    private static function getWeb3ServiceUrl()
    {
        if (SERVER_ENV == _DEBUG) {
            return 'https://192.144.140.87/webapp/index.php';
        }
        if (SERVER_ENV == _TEST) {
            return 'http://127.0.0.1:7672/webapp/index.php';
        }
        $web3ServiceCluster = require_once('../config/web3service.cluster.php');
        return $web3ServiceCluster[rand() % count($web3ServiceCluster)];
    }

}