public static function updateUserBalance($user_model, $amount)
{
$balance = Balance::getBalance($user_model->id);
if ($amount > 0) {
$balance->total_received = bcadd($balance->balance, $amount);
}
$balance->balance = bcadd($balance->balance, $amount);
$balance->num_transactions = bcadd($balance->num_transactions, 1);
$balance->save();
return $balance;
}
/**
* Send from address or address account
*
* @return mixed
*/
private function sendFrom($from_address, $to_address, $note = '', Converter $amount, Converter $network_fee)
{
$from_address_model = Mint\Address::getAddress($from_address);
$is_internal = $this->isUserAddress($to_address);
$merchant_fee = Converter::btc(Mint\Settings::getVal('merchant_fee'));
/* Calculate real amount to be deducted from users account. */
$full_amount = !$is_internal ? Converter::satoshi($this->bcsum($amount->satoshi, $network_fee->satoshi, $merchant_fee->satoshi)) : $amount;
/* If it's users address check balance without fee */
if ($from_address_model->balance < $full_amount->satoshi) {
throw new JsonException(trans('error.nofunds'));
}
if (!$is_internal) {
/* Set transaction fee and deduct it from the payment amount */
$this->bitcoin_core->settxfee((double) $network_fee->btc);
$amount = Converter::btc(bcsub($amount->btc, $network_fee->btc, 8));
/* Pay merchant fee and deduct it from the payment amount if any */
if ($merchant_fee->satoshi > 0) {
$fee_address = $this->getFeeAddress();
$this->sendFrom($from_address_model->address, $fee_address, 'merchant fee', $merchant_fee, Converter::btc(0));
$amount = Converter::btc(bcsub($amount->btc, $merchant_fee->btc, 8));
}
/* Refund merchant fee if payment fails */
try {
$tx_id = $this->bitcoin_core->sendfrom($from_address, $to_address, (double) $amount->btc, 1, $note);
} catch (JsonException $e) {
$this->sendFrom($fee_address, $from_address_model->address, 'merchant fee refund', $merchant_fee, Converter::btc(0));
throw new JsonException($e->getMessage());
}
$tx_info = $this->bitcoin_core->gettransaction($tx_id);
$tx_fee = Converter::btc(abs($tx_info['fee']));
} else {
/* Internal transaction. No txid returned and no fee required. */
$tx_id = 0;
$tx_fee = Converter::btc(0);
$merchant_fee = Converter::btc(0);
$to_address_model = Mint\Address::getAddress($to_address);
/* Move currency between user accounts. */
$response = $this->bitcoin_core->move($from_address_model->address, $to_address_model->address, (double) $amount->btc, 1, $note);
if (!$response) {
throw new JsonException(trans('error.movefailed'));
}
/* Update every balance, because we won't be getting callback on move */
Mint\Address::updateAddressBalance($from_address_model, -$amount->satoshi);
$address_model = Mint\Address::updateAddressBalance($to_address_model, $amount->satoshi);
/* Update user balance if this transaction is fee */
$user_balance = Mint\Balance::getBalance($this->user->id);
if ($to_address_model->address == $this->getFeeAddress()) {
$user_balance = Mint\Balance::updateUserBalance($this->user, -$amount->satoshi);
}
/* Add bogus transaction to db and send callback */
foreach (['send', 'receive'] as $type) {
$common_data = ['tx_id' => '0000000000000000000000000000000000000000000000000000000000000000', 'user_id' => $this->user->id, 'address_from' => $from_address_model->address, 'address_to' => $to_address_model->address, 'crypto_amount' => $type == 'send' ? -$amount->satoshi : $amount->satoshi, 'confirmations' => Mint\Settings::getVal('min_confirmations'), 'network_fee' => 0, 'merchant_fee' => 0, 'tx_time' => time(), 'tx_timereceived' => time(), 'user_balance' => $user_balance->balance, 'address_balance' => $address_model->balance, 'bitcoind_balance' => $this->bitcoin_core->getbalance(), 'note' => $note, 'transaction_type' => 'internal-' . $type];
$transaction_model = Mint\Transaction::insertNewTransaction($common_data);
if (!empty($this->user->callback_url)) {
$this->fetchUrl($this->user->callback_url, $common_data, $transaction_model);
}
}
}
return ['tx_id' => $tx_id, 'tx_fee' => $tx_fee, 'merchant_fee' => $merchant_fee, 'amount' => $amount, 'from_address' => $from_address, 'to_address' => $to_address, 'is_internal' => $tx_id === 0];
}
/**
* Send from address or address account
*
* @return mixed
*/
private function sendFrom($from_address, $to_address, $note = '', Converter $amount, Converter $network_fee, Converter $merchant_fee, $method = 'sendfrom')
{
$from_address_model = Mint\Address::getAddress($from_address);
if ($method == 'move') {
if (!$this->isUserAddress($to_address)) {
$method = 'sendfrom';
}
}
/* Check balance */
if ($from_address_model->balance < $amount->satoshi) {
throw new JsonException(trans('error.nofunds'));
}
/* Pay merchant fee if any */
if ($merchant_fee->satoshi > 0) {
$fee_address = $this->getFeeAddress();
$this->sendFrom($from_address_model->address, $fee_address, 'merchant fee', $merchant_fee, Converter::btc(0), Converter::btc(0), 'move');
}
try {
if ($method == 'move') {
$to_address_model = Mint\Address::getAddress($to_address);
/* Move currency between user accounts. */
$response = $this->bitcoin_core->move($from_address_model->address, $to_address_model->address, (double) $amount->btc, 1, $note);
if (!$response) {
throw new JsonException(trans('error.movefailed'));
}
/* Internal transaction. No txid returned and no network fee required. */
$tx_id = 0;
$tx_fee = Converter::btc(0);
$send_amount = Converter::satoshi(bcadd($amount->satoshi, $merchant_fee->satoshi));
DB::beginTransaction();
/* Update every balance, because we won't be getting callback on move */
Mint\Address::updateAddressBalance($from_address_model, -$send_amount->satoshi);
$address_model = Mint\Address::updateAddressBalance($to_address_model, $send_amount->satoshi);
switch (true) {
case $to_address_model->address == $this->getFeeAddress():
/* Update user balance if this transaction is fee */
$user_balance = Mint\Balance::updateUserBalance($this->user, -$send_amount->satoshi);
$types = ['send'];
break;
case $from_address_model->address == $this->getFeeAddress():
/* Update user balance if this transaction is fee */
$user_balance = Mint\Balance::updateUserBalance($this->user, $send_amount->satoshi);
$types = ['receive'];
break;
default:
$user_balance = Mint\Balance::getBalance($this->user->id);
$types = ['send', 'receive'];
break;
}
DB::commit();
list($usecs, $secs) = explode(' ', microtime());
$txid = $this->getInternalTxId($from_address_model->address, $to_address_model->address, $amount->satoshi, (double) $secs + (double) $usecs);
foreach ($types as $type) {
$common_data = ['tx_id' => $txid, 'user_id' => $this->user->id, 'address_from' => $from_address_model->address, 'address_to' => $to_address_model->address, 'crypto_amount' => $type == 'send' ? -$amount->satoshi : $amount->satoshi, 'confirmations' => Mint\Settings::getVal('min_confirmations'), 'network_fee' => 0, 'merchant_fee' => $merchant_fee->satoshi, 'tx_time' => (int) $secs, 'tx_timereceived' => (int) $secs, 'tx_category' => $type, 'user_balance' => $user_balance->balance, 'address_balance' => $address_model->balance, 'bitcoind_balance' => $this->bitcoin_core->getbalance(), 'note' => $note, 'transaction_type' => 'internal'];
$transaction_model = Mint\Transaction::insertNewTransaction($common_data);
if (!empty($this->user->callback_url)) {
$this->fetchUrl($this->user->callback_url, $common_data, $transaction_model);
}
}
} else {
/* Set transaction fee and deduct it from the payment amount */
$this->bitcoin_core->settxfee((double) $network_fee->btc);
$total_amount = Converter::btc(bcsub($amount->btc, $network_fee->btc, 8));
$tx_id = $this->bitcoin_core->sendfrom($from_address, $to_address, (double) $amount->btc, 1, $note);
$tx_info = $this->bitcoin_core->gettransaction($tx_id);
$tx_fee = Converter::btc(abs($tx_info['fee']));
}
} catch (JsonException $e) {
/* Refund merchant fee if payment fails */
$this->sendFrom($fee_address, $from_address_model->address, 'merchant fee refund', $merchant_fee, Converter::btc(0), Converter::btc(0), 'move');
throw new JsonException($e->getMessage());
}
return ['tx_id' => $tx_id, 'tx_fee' => $tx_fee, 'merchant_fee' => $merchant_fee, 'amount' => $amount, 'from_address' => $from_address, 'to_address' => $to_address, 'is_internal' => $tx_id === 0];
}