<?php 

define("TRX_TO_SUN",'1000000');
define("SUN_TO_TRX", '0.000001');

include_once "../libraries/vendor/autoload.php";
include_once("html_iframe_header.php");
include_once("tron_utils.php");

//include all php files that generated by protoc
$dir   = new RecursiveDirectoryIterator('protobuf/core/');
$iter  = new RecursiveIteratorIterator($dir);
$files = new RegexIterator($iter, '/^.+\.php$/', RecursiveRegexIterator::GET_MATCH); // an Iterator, not an array

foreach ( $files as $file ) {
	
	if (is_array($file)) {
		foreach($file as $filename) {
			include $filename;
		}
	} else {
		include $file;
	}
}

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    try {
		$ownerAddressHex = base58check2HexString($_POST['from']);
		$toAddressHex = base58check2HexString($_POST['to']);
		
		$ownerAddressBin = hex2str($ownerAddressHex);
		$toAddressBin = hex2str($toAddressHex);
		
		$amountInSun = bcmul($_POST['amount'], TRX_TO_SUN);

		$contract = new \Protocol\Transaction\Contract();
		$transferContract = new \Protocol\TransferContract();
		$transferContract->setAmount($amountInSun);
		$transferContract->setOwnerAddress($ownerAddressBin);
		$transferContract->setToAddress($toAddressBin);
		
		$any = new \Google\Protobuf\Any();
		$any->pack($transferContract);
		
		$contract->setParameter( $any );
		$contract->setType( \Protocol\Transaction\Contract\ContractType::TransferContract );
		
    ?>
	<div class="alert alert-success">
		<h6 class="mt-3">Contract Serialized Hex</h6>
		<textarea class="form-control" rows="5" id="comment" readonly><?php echo str2hex($contract->serializeToString());?></textarea>
		
		<h6 class="mt-3">Contract Serialized Json</h6>
		<textarea class="form-control" rows="5" id="comment" readonly><?php echo $contract->serializeToJsonString()?></textarea>
	</div>
<?php 
    } catch (Exception $e) {
        $errmsg .= "Problem found. " . $e->getMessage();

    }
} 

if ($errmsg) {
?>
    <div class="alert alert-danger">
        <strong>Error!</strong> <?php echo $errmsg?>
    </div>
<?php
}
?>
<form action='' method='post'>
    <div class="form-group">
        <label for="from">Owner Address:</label>
        <input class="form-control" type='text' name='from' id='from' value='<?php echo $_POST['from']?>'>
    </div>
	
	<div class="form-group">
        <label for="to">To Address:</label>
        <input class="form-control" type='text' name='to' id='to' value='<?php echo $_POST['to']?>'>
    </div>
	
	<div class="form-group">
		<label for="amount">Amount:</label>
		
		<div class="input-group mb-3">
			<input class="form-control" type='text' name='amount' id='amount' value='<?php echo $_POST['amount']?>'>
			<div class="input-group-append">
			  <span class="input-group-text">TRX</span>
			</div>
		</div>
	</div>
   
    <input type='submit' class="btn btn-success btn-block"/>
</form>
<?php
include_once("html_iframe_footer.php");

message TransferContract {
	
	#The owner of the current account
    bytes owner_address = 1;
	
	#The target address to transfer
    bytes to_address = 2;
	
	#The amount of TRX to transfer
    int64 amount = 3;
}

<?php
# Generated by the protocol buffer compiler.  DO NOT EDIT!
# source: core/contract/balance_contract.proto

namespace Protocol;

use Google\Protobuf\Internal\GPBType;
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\GPBUtil;

/**
 * Generated from protobuf message <code>protocol.TransferContract</code>
 */
class TransferContract extends \Google\Protobuf\Internal\Message
{
    /**
     * Generated from protobuf field <code>bytes owner_address = 1;</code>
     */
    protected $owner_address = '';
    /**
     * Generated from protobuf field <code>bytes to_address = 2;</code>
     */
    protected $to_address = '';
    /**
     * Generated from protobuf field <code>int64 amount = 3;</code>
     */
    protected $amount = 0;

    /**
     * Constructor.
     *
     * @param array $data {
     *     Optional. Data for populating the Message object.
     *
     *     @type string $owner_address
     *     @type string $to_address
     *     @type int|string $amount
     * }
     */
    public function __construct($data = NULL) {
        \GPBMetadata\Core\Contract\BalanceContract::initOnce();
        parent::__construct($data);
    }

    /**
     * Generated from protobuf field <code>bytes owner_address = 1;</code>
     * @return string
     */
    public function getOwnerAddress()
    {
        return $this->owner_address;
    }

    /**
     * Generated from protobuf field <code>bytes owner_address = 1;</code>
     * @param string $var
     * @return $this
     */
    public function setOwnerAddress($var)
    {
        GPBUtil::checkString($var, False);
        $this->owner_address = $var;

        return $this;
    }

    /**
     * Generated from protobuf field <code>bytes to_address = 2;</code>
     * @return string
     */
    public function getToAddress()
    {
        return $this->to_address;
    }

    /**
     * Generated from protobuf field <code>bytes to_address = 2;</code>
     * @param string $var
     * @return $this
     */
    public function setToAddress($var)
    {
        GPBUtil::checkString($var, False);
        $this->to_address = $var;

        return $this;
    }

    /**
     * Generated from protobuf field <code>int64 amount = 3;</code>
     * @return int|string
     */
    public function getAmount()
    {
        return $this->amount;
    }

    /**
     * Generated from protobuf field <code>int64 amount = 3;</code>
     * @param int|string $var
     * @return $this
     */
    public function setAmount($var)
    {
        GPBUtil::checkInt64($var);
        $this->amount = $var;

        return $this;
    }

}