/**
* @param TransactionJournal $journal
* @param Tag $tag
*
* @return bool
*/
protected function connectBalancingAct(TransactionJournal $journal, Tag $tag) : bool
{
/** @var TransactionType $withdrawal */
$withdrawal = TransactionType::whereType(TransactionType::WITHDRAWAL)->first();
$withdrawals = $tag->transactionJournals()->where('transaction_type_id', $withdrawal->id)->count();
/** @var TransactionType $transfer */
$transfer = TransactionType::whereType(TransactionType::TRANSFER)->first();
$transfers = $tag->transactionJournals()->where('transaction_type_id', $transfer->id)->count();
// only if this is the only withdrawal.
if ($journal->transaction_type_id == $withdrawal->id && $withdrawals < 1) {
$journal->tags()->save($tag);
$journal->save();
return true;
}
// and only if this is the only transfer
if ($journal->transaction_type_id == $transfer->id && $transfers < 1) {
$journal->tags()->save($tag);
$journal->save();
return true;
}
// ignore expense
return false;
}
/**
* @param Tag $tag
* @param $amount
*
* @return string
*/
protected function amountByTagAdvancePayment(Tag $tag, $amount)
{
if ($this->transactionType->type == 'Withdrawal') {
$others = $tag->transactionJournals()->transactionTypes(['Deposit'])->get();
foreach ($others as $other) {
$amount = bcsub($amount, $other->amount_positive);
}
return $amount;
}
if ($this->transactionType->type == 'Deposit') {
return '0';
}
return $amount;
}
/**
* Assuming the journal has only one tag. Parameter amount is used as fallback.
*
* @param Tag $tag
* @param string $amount
*
* @return string
*/
protected function amountByTag(Tag $tag, $amount)
{
if ($tag->tagMode == 'advancePayment') {
if ($this->transactionType->type == 'Withdrawal') {
$others = $tag->transactionJournals()->transactionTypes(['Deposit'])->get();
foreach ($others as $other) {
$amount = bcsub($amount, $other->actual_amount);
}
return $amount;
}
if ($this->transactionType->type == 'Deposit') {
return '0';
}
}
if ($tag->tagMode == 'balancingAct') {
if ($this->transactionType->type == 'Withdrawal') {
$transfer = $tag->transactionJournals()->transactionTypes(['Transfer'])->first();
if ($transfer) {
$amount = bcsub($amount, $transfer->actual_amount);
return $amount;
}
}
}
return $amount;
}
