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<?php |
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namespace Bavix\Wallet\Traits; |
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use Bavix\Wallet\Exceptions\BalanceIsEmpty; |
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use Bavix\Wallet\Exceptions\InsufficientFunds; |
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use Bavix\Wallet\Interfaces\Wallet; |
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use Bavix\Wallet\Models\Transaction; |
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use Bavix\Wallet\Models\Transfer; |
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use Bavix\Wallet\Models\Wallet as WalletModel; |
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use Bavix\Wallet\Objects\Bring; |
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use Bavix\Wallet\Objects\Operation; |
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use Bavix\Wallet\Services\CommonService; |
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use Bavix\Wallet\Services\ProxyService; |
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use Bavix\Wallet\Services\WalletService; |
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use Illuminate\Database\Eloquent\Relations\MorphMany; |
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use Illuminate\Database\Eloquent\Relations\MorphOne; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Facades\DB; |
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/** |
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* Trait HasWallet |
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* |
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* @package Bavix\Wallet\Traits |
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* |
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* @property-read WalletModel $wallet |
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* @property-read Collection|WalletModel[] $wallets |
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* @property-read int $balance |
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*/ |
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trait HasWallet |
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{ |
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/** |
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* The input means in the system |
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* |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function deposit(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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$walletService = \app(WalletService::class); |
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$walletService->checkAmount($amount); |
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/** |
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* @var WalletModel $wallet |
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*/ |
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$wallet = $walletService->getWallet($this); |
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$transactions = \app(CommonService::class)->enforce($wallet, [ |
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(new Operation()) |
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->setType(Transaction::TYPE_DEPOSIT) |
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->setConfirmed($confirmed) |
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->setAmount($amount) |
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->setMeta($meta) |
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]); |
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return \current($transactions); |
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} |
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/** |
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* Magic laravel framework method, makes it |
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* possible to call property balance |
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* |
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* Example: |
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* $user1 = User::first()->load('wallet'); |
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* $user2 = User::first()->load('wallet'); |
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* |
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* Without static: |
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* var_dump($user1->balance, $user2->balance); // 100 100 |
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* $user1->deposit(100); |
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* $user2->deposit(100); |
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* var_dump($user1->balance, $user2->balance); // 200 200 |
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* |
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* With static: |
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* var_dump($user1->balance, $user2->balance); // 100 100 |
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* $user1->deposit(100); |
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* var_dump($user1->balance); // 200 |
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* $user2->deposit(100); |
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* var_dump($user2->balance); // 300 |
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* |
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* @return int |
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* @throws |
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*/ |
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public function getBalanceAttribute(): int |
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{ |
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if ($this instanceof WalletModel) { |
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$this->exists or $this->save(); |
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$proxy = \app(ProxyService::class); |
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if (!$proxy->has($this->getKey())) { |
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$proxy->set($this->getKey(), (int)($this->attributes['balance'] ?? 0)); |
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} |
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return $proxy[$this->getKey()]; |
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} |
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return $this->wallet->balance; |
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} |
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/** |
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* all user actions on wallets will be in this method |
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* |
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* @return MorphMany |
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*/ |
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public function transactions(): MorphMany |
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{ |
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return ($this instanceof WalletModel ? $this->holder : $this) |
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->morphMany(config('wallet.transaction.model'), 'payable'); |
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} |
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/** |
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* This method ignores errors that occur when transferring funds |
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* |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @param string $status |
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* @return null|Transfer |
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*/ |
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public function safeTransfer(Wallet $wallet, int $amount, ?array $meta = null, string $status = Transfer::STATUS_TRANSFER): ?Transfer |
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{ |
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try { |
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return $this->transfer($wallet, $amount, $meta, $status); |
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} catch (\Throwable $throwable) { |
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return null; |
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} |
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} |
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/** |
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* A method that transfers funds from host to host |
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* |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @param string $status |
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* @return Transfer |
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* @throws |
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*/ |
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public function transfer(Wallet $wallet, int $amount, ?array $meta = null, string $status = Transfer::STATUS_TRANSFER): Transfer |
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{ |
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return DB::transaction(function () use ($amount, $wallet, $meta, $status) { |
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$fee = \app(WalletService::class) |
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->fee($wallet, $amount); |
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$withdraw = $this->withdraw($amount + $fee, $meta); |
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$deposit = $wallet->deposit($amount, $meta); |
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return $this->assemble($wallet, $withdraw, $deposit, $status); |
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}); |
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} |
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/** |
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* Withdrawals from the system |
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* |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function withdraw(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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if ($amount && !$this->balance) { |
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throw new BalanceIsEmpty(trans('wallet::errors.wallet_empty')); |
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} |
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if (!$this->canWithdraw($amount)) { |
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throw new InsufficientFunds(trans('wallet::errors.insufficient_funds')); |
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} |
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return $this->forceWithdraw($amount, $meta, $confirmed); |
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} |
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/** |
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* Checks if you can withdraw funds |
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* |
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* @param int $amount |
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* @return bool |
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*/ |
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public function canWithdraw(int $amount): bool |
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{ |
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return $this->balance >= $amount; |
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} |
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/** |
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* Forced to withdraw funds from system |
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* |
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* @param int $amount |
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* @param array|null $meta |
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* @param bool $confirmed |
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* |
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* @return Transaction |
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*/ |
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public function forceWithdraw(int $amount, ?array $meta = null, bool $confirmed = true): Transaction |
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{ |
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$walletService = \app(WalletService::class); |
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$walletService->checkAmount($amount); |
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/** |
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* @var WalletModel $wallet |
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*/ |
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$wallet = $walletService->getWallet($this); |
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$transactions = \app(CommonService::class)->enforce($wallet, [ |
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(new Operation()) |
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->setType(Transaction::TYPE_WITHDRAW) |
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->setConfirmed($confirmed) |
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->setAmount(-$amount) |
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->setMeta($meta) |
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]); |
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return \current($transactions); |
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} |
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/** |
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* this method adds a new transfer to the transfer table |
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* |
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* @param Wallet $wallet |
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* @param Transaction $withdraw |
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* @param Transaction $deposit |
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* @param string $status |
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* @return Transfer |
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* @throws |
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*/ |
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protected function assemble(Wallet $wallet, Transaction $withdraw, Transaction $deposit, string $status = Transfer::STATUS_PAID): Transfer |
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{ |
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$from = ($this instanceof WalletModel ? $this : $this->wallet); |
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$transfers = \app(CommonService::class)->assemble([ |
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(new Bring()) |
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->setStatus($status) |
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->setDeposit($deposit) |
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->setWithdraw($withdraw) |
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->setFrom($from) |
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->setTo($wallet) |
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]); |
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return \current($transfers); |
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} |
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/** |
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* the forced transfer is needed when the user does not have the money and we drive it. |
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* Sometimes you do. Depends on business logic. |
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* |
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* @param Wallet $wallet |
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* @param int $amount |
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* @param array|null $meta |
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* @param string $status |
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* @return Transfer |
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*/ |
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public function forceTransfer(Wallet $wallet, int $amount, ?array $meta = null, string $status = Transfer::STATUS_TRANSFER): Transfer |
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{ |
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return DB::transaction(function () use ($amount, $wallet, $meta, $status) { |
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$fee = \app(WalletService::class) |
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->fee($wallet, $amount); |
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$withdraw = $this->forceWithdraw($amount + $fee, $meta); |
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$deposit = $wallet->deposit($amount, $meta); |
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return $this->assemble($wallet, $withdraw, $deposit, $status); |
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}); |
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} |
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/** |
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* the transfer table is used to confirm the payment |
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* this method receives all transfers |
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* |
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* @return MorphMany |
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*/ |
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public function transfers(): MorphMany |
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{ |
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return \app(WalletService::class) |
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->getWallet($this) |
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->morphMany(config('wallet.transfer.model'), 'from'); |
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} |
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/** |
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* Get default Wallet |
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* this method is used for Eager Loading |
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* |
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* @return MorphOne|WalletModel |
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*/ |
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public function wallet(): MorphOne |
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{ |
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return ($this instanceof WalletModel ? $this->holder : $this) |
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->morphOne(config('wallet.wallet.model'), 'holder') |
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->where('slug', config('wallet.wallet.default.slug')) |
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38 |
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->withDefault([ |
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'name' => config('wallet.wallet.default.name'), |
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'slug' => config('wallet.wallet.default.slug'), |
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'balance' => 0, |
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]); |
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} |
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} |
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bavix /
laravel-wallet
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