<?php

namespace services;

require_once('models/Transaction.php');

use models\Transaction;
use phpcommon;

class BlockChainService {

    /*
      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, $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');
            die();
            return;
        }
        $account = myself()->_getAddress();
        if (empty($account)) {
            error_log('gameItemMallBuy address is  emtpy:' . myself()->_getAccountId());
            myself()->_rspErr(500,  'server internal error');
            die();
            return;
        }
        $params = array(
            'c' => 'GameItemMall',
            'a' => 'buy',
            'account' => $account,
            'price' => $price,
        );
        {
            $url = self::getWeb3ServiceUrl();
            $response = '';
            if (!phpcommon\HttpClient::get
                ($url,
                 $params,
                 $response)) {
                myself()->_rspErr(500,  'server internal error');
                die();
                return;
            }
            error_log($response);
            $rspObj = json_decode($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');
                die();
                return;
            }
        }
    }

    private static function getWeb3ServiceUrl()
    {
        return 'http://192.168.100.39:7672/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)];
    }

}