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<?php |
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namespace hipanel\modules\finance\widgets; |
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use hipanel\helpers\ArrayHelper; |
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use hipanel\modules\client\models\Client; |
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use hipanel\modules\finance\cart\CartCalculator; |
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use hipanel\modules\finance\models\ExchangeRate; |
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use hipanel\modules\finance\models\Purse; |
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use hipanel\modules\finance\Module; |
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use hiqdev\yii2\cart\ShoppingCart; |
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use LogicException; |
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use OutOfRangeException; |
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use Yii; |
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use yii\base\Widget; |
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/** |
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* Class CartCurrencyNegotiator is a widget that suggests |
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* possible cart payment options, that may include currency converting |
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* |
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* @author Dmytro Naumenko <[email protected]> |
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*/ |
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final class CartCurrencyNegotiator extends Widget |
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{ |
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/** |
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* @var ShoppingCart |
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*/ |
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public $cart; |
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/** |
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* @var Client |
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*/ |
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public $client; |
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/** |
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* @var Module |
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*/ |
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public $merchantModule; |
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/** |
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* @var CartCalculator |
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*/ |
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private $calculator; |
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public function __construct($config = []) |
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{ |
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parent::__construct($config); |
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$this->calculator = new CartCalculator($this->cart); |
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} |
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public function run() |
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{ |
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$cartCurrency = $this->cart->getCurrency(); |
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$this->renderCurrencyOptions( |
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$this->numberFormat($this->cart->getTotal(), $cartCurrency), |
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$cartCurrency |
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); |
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if (!Yii::$app->user->can('support')) { |
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// Prevent seller from exchanging own money to pay for client's services, |
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// when client's tariff is in different currency. |
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$convertibleCurrencies = $this->convertibleCurrencies( |
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ArrayHelper::getColumn($this->client->purses, 'currency'), |
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$cartCurrency |
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); |
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foreach ($convertibleCurrencies as $rate) { |
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$this->renderCurrencyOptions($this->getCartAmountInCurrency($rate->from), $rate->from); |
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} |
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} |
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} |
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/** |
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* @return string formatted cart totals |
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* @throws \yii\base\InvalidConfigException |
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*/ |
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public function renderCartTotals(): string |
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{ |
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return Yii::$app->formatter->asCurrency($this->cart->getTotal(), $this->cart->getCurrency()); |
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} |
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/** |
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* @param string $currency |
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* @return float |
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* @throws \yii\web\UnprocessableEntityHttpException |
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*/ |
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public function getCartAmountInCurrency(string $currency): float |
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{ |
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$cartCurrency = $this->cart->getCurrency(); |
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if ($cartCurrency === $currency) { |
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return $this->numberFormat($this->cart->getTotal(), $currency); |
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} |
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$convertibleCurrencies = $this->convertibleCurrencies( |
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ArrayHelper::getColumn($this->client->purses, 'currency'), |
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$cartCurrency |
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); |
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foreach ($convertibleCurrencies as $rate) { |
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if ($rate->from === strtoupper($currency)) { |
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return $this->numberFormat($this->cart->getTotal() / $rate->rate, $cartCurrency); |
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} |
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} |
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throw new OutOfRangeException("No exchange rate from \"$cartCurrency\" to \"$currency\""); |
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} |
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public function getFullAmount(string $currency): float |
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{ |
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$purse = $this->getClientPurseByCurrency($currency); |
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if ($purse->getBudget() < 0) { |
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return round(-$purse->getBudget() + $this->getCartAmountInCurrency($currency), 2); |
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} |
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return round($this->getCartAmountInCurrency($currency), 2); |
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} |
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public function getPartialAmount(string $currency): float |
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{ |
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$purse = $this->getClientPurseByCurrency($currency); |
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return round($this->getCartAmountInCurrency($currency) - $purse->getBudget(), 2); |
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} |
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public function renderBalance(): string |
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{ |
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return $this->render('balance'); |
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} |
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/** |
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* @param string[] $clientPursesCurrencies |
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* @param string $cartCurrency |
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* @return ExchangeRate[] |
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* @throws \yii\web\UnprocessableEntityHttpException |
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*/ |
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private function convertibleCurrencies(array $clientPursesCurrencies, string $cartCurrency): array |
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{ |
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/** @var ExchangeRate[] $rates */ |
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$rates = Yii::$app->cache->getOrSet(['exchange-rates', Yii::$app->user->id], static function () { |
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return ExchangeRate::find()->select(['from', 'to', 'rate'])->all(); |
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}, 3600); |
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$result = []; |
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foreach ($clientPursesCurrencies as $currency) { |
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foreach ($rates as $rate) { |
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if ($rate->from === strtoupper($currency) && $rate->to === strtoupper($cartCurrency)) { |
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$result[] = $rate; |
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} |
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} |
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} |
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return $result; |
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} |
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public function getViewPath() |
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{ |
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return parent::getViewPath() . DIRECTORY_SEPARATOR . 'cartPaymentOptions'; |
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} |
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public function render($view, $params = []) |
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{ |
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return parent::render($view, array_merge($params, [ |
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'cart' => $this->cart, |
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'client' => $this->client, |
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])); |
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} |
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private function renderCurrencyOptions(float $amount, string $currency): void |
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{ |
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$currency = strtolower($currency); |
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$purse = $this->getClientPurseByCurrency($currency); |
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$options = [ |
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'purse' => $purse, |
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'amount' => $amount, |
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'currency' => $currency, |
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]; |
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if (round($purse->getBudget(), 2) >= round($amount, 2) || Yii::$app->user->can('manage')) { |
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echo $this->render('enough', $options); |
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} elseif ($purse->getBudget() > 0) { |
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echo $this->render('partial', array_merge($options, [ |
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'amount' => $this->getPartialAmount($currency) |
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])); |
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} |
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if ($purse->getBudget() < 0) { |
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echo $this->render('full_payment', array_merge($options, [ |
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'amount' => $this->getFullAmount($currency), |
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'debt' => -$purse->getBudget(), |
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])); |
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} else { |
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echo $this->render('full_payment', $options); |
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} |
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} |
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private function getClientPurseByCurrency(string $currency): Purse |
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{ |
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$purse = $this->client->getPurseByCurrency($currency); |
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if ($purse !== null) { |
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return $purse; |
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} |
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$firstPurse = $this->client->getPrimaryPurse(); |
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if ($firstPurse === null) { |
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throw new LogicException('Primary purse was not found'); |
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} |
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$fakePurse = clone $firstPurse; |
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$fakePurse->id = null; |
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$fakePurse->currency = $currency; |
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$fakePurse->balance = 0; |
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$fakePurse->credit = 0; |
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return $fakePurse; |
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} |
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private function numberFormat(string $amount, string $currencyCode): string |
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{ |
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return number_format($amount, 2, '.', ''); |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.