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1 | <?php |
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2 | |||
3 | namespace hipanel\modules\finance\widgets; |
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4 | |||
5 | use hipanel\helpers\ArrayHelper; |
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6 | use hipanel\modules\client\models\Client; |
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7 | use hipanel\modules\finance\cart\CartCalculator; |
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8 | use hipanel\modules\finance\models\ExchangeRate; |
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9 | use hipanel\modules\finance\models\Purse; |
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10 | use hipanel\modules\finance\Module; |
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11 | use hiqdev\yii2\cart\ShoppingCart; |
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12 | use LogicException; |
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13 | use OutOfRangeException; |
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14 | use Yii; |
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15 | use yii\base\Widget; |
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16 | |||
17 | /** |
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18 | * Class CartCurrencyNegotiator is a widget that suggests |
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19 | * possible cart payment options, that may include currency converting |
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20 | * |
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21 | * @author Dmytro Naumenko <[email protected]> |
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22 | */ |
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23 | final class CartCurrencyNegotiator extends Widget |
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24 | { |
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25 | /** |
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26 | * @var ShoppingCart |
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27 | */ |
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28 | public $cart; |
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29 | |||
30 | /** |
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31 | * @var Client |
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32 | */ |
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33 | public $client; |
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34 | |||
35 | /** |
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36 | * @var Module |
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37 | */ |
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38 | public $merchantModule; |
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39 | /** |
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40 | * @var CartCalculator |
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41 | */ |
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42 | private $calculator; |
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43 | |||
44 | public function __construct($config = []) |
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45 | { |
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46 | parent::__construct($config); |
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47 | |||
48 | $this->calculator = new CartCalculator($this->cart); |
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49 | } |
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50 | |||
51 | public function run() |
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52 | { |
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53 | $cartCurrency = $this->cart->getCurrency(); |
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54 | $this->renderCurrencyOptions( |
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55 | $this->numberFormat($this->cart->getTotal(), $cartCurrency), |
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56 | $cartCurrency |
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57 | ); |
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58 | |||
59 | if (!Yii::$app->user->can('support')) { |
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60 | // Prevent seller from exchanging own money to pay for client's services, |
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61 | // when client's tariff is in different currency. |
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62 | $convertibleCurrencies = $this->convertibleCurrencies( |
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63 | ArrayHelper::getColumn($this->client->purses, 'currency'), |
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64 | $cartCurrency |
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65 | ); |
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66 | foreach ($convertibleCurrencies as $rate) { |
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67 | $this->renderCurrencyOptions($this->getCartAmountInCurrency($rate->from), $rate->from); |
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68 | } |
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69 | } |
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70 | } |
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71 | |||
72 | /** |
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73 | * @return string formatted cart totals |
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74 | * @throws \yii\base\InvalidConfigException |
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75 | */ |
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76 | public function renderCartTotals(): string |
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77 | { |
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78 | return Yii::$app->formatter->asCurrency($this->cart->getTotal(), $this->cart->getCurrency()); |
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79 | } |
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80 | |||
81 | /** |
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82 | * @param string $currency |
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83 | * @return float |
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84 | * @throws \yii\web\UnprocessableEntityHttpException |
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85 | */ |
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86 | public function getCartAmountInCurrency(string $currency): float |
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87 | { |
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88 | $cartCurrency = $this->cart->getCurrency(); |
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89 | if ($cartCurrency === $currency) { |
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90 | return $this->numberFormat($this->cart->getTotal(), $currency); |
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91 | } |
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92 | |||
93 | $convertibleCurrencies = $this->convertibleCurrencies( |
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94 | ArrayHelper::getColumn($this->client->purses, 'currency'), |
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95 | $cartCurrency |
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96 | ); |
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97 | |||
98 | foreach ($convertibleCurrencies as $rate) { |
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99 | if ($rate->from === strtoupper($currency)) { |
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100 | return $this->numberFormat($this->cart->getTotal() / $rate->rate, $cartCurrency); |
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101 | } |
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102 | } |
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103 | |||
104 | throw new OutOfRangeException("No exchange rate from \"$cartCurrency\" to \"$currency\""); |
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105 | } |
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106 | |||
107 | public function getFullAmount(string $currency): float |
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108 | { |
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109 | $purse = $this->getClientPurseByCurrency($currency); |
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110 | |||
111 | if ($purse->getBudget() < 0) { |
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112 | return round(-$purse->getBudget() + $this->getCartAmountInCurrency($currency), 2); |
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113 | } |
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114 | |||
115 | return round($this->getCartAmountInCurrency($currency), 2); |
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116 | } |
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117 | |||
118 | public function getPartialAmount(string $currency): float |
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119 | { |
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120 | $purse = $this->getClientPurseByCurrency($currency); |
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121 | |||
122 | return round($this->getCartAmountInCurrency($currency) - $purse->getBudget(), 2); |
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123 | } |
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124 | |||
125 | public function renderBalance(): string |
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126 | { |
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127 | return $this->render('balance'); |
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128 | } |
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129 | |||
130 | /** |
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131 | * @param string[] $clientPursesCurrencies |
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132 | * @param string $cartCurrency |
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133 | * @return ExchangeRate[] |
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134 | * @throws \yii\web\UnprocessableEntityHttpException |
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135 | */ |
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136 | private function convertibleCurrencies(array $clientPursesCurrencies, string $cartCurrency): array |
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137 | { |
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138 | /** @var ExchangeRate[] $rates */ |
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139 | $rates = Yii::$app->cache->getOrSet(['exchange-rates', Yii::$app->user->id], static function () { |
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140 | return ExchangeRate::find()->select(['from', 'to', 'rate'])->all(); |
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141 | }, 3600); |
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142 | |||
143 | $result = []; |
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144 | foreach ($clientPursesCurrencies as $currency) { |
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145 | foreach ($rates as $rate) { |
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146 | if ($rate->from === strtoupper($currency) && $rate->to === strtoupper($cartCurrency)) { |
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147 | $result[] = $rate; |
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148 | } |
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149 | } |
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150 | } |
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151 | |||
152 | return $result; |
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153 | } |
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154 | |||
155 | public function getViewPath() |
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156 | { |
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157 | return parent::getViewPath() . DIRECTORY_SEPARATOR . 'cartPaymentOptions'; |
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158 | } |
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159 | |||
160 | public function render($view, $params = []) |
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161 | { |
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162 | return parent::render($view, array_merge($params, [ |
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163 | 'cart' => $this->cart, |
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164 | 'client' => $this->client, |
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165 | ])); |
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166 | } |
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167 | |||
168 | private function renderCurrencyOptions(float $amount, string $currency): void |
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169 | { |
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170 | $currency = strtolower($currency); |
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171 | |||
172 | $purse = $this->getClientPurseByCurrency($currency); |
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173 | $options = [ |
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174 | 'purse' => $purse, |
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175 | 'amount' => $amount, |
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176 | 'currency' => $currency, |
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177 | ]; |
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178 | |||
179 | if (round($purse->getBudget(), 2) >= round($amount, 2) || Yii::$app->user->can('manage')) { |
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180 | echo $this->render('enough', $options); |
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181 | } elseif ($purse->getBudget() > 0) { |
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182 | echo $this->render('partial', array_merge($options, [ |
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183 | 'amount' => $this->getPartialAmount($currency) |
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184 | ])); |
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185 | } |
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186 | |||
187 | if ($purse->getBudget() < 0) { |
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188 | echo $this->render('full_payment', array_merge($options, [ |
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189 | 'amount' => $this->getFullAmount($currency), |
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190 | 'debt' => -$purse->getBudget(), |
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191 | ])); |
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192 | } else { |
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193 | echo $this->render('full_payment', $options); |
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194 | } |
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195 | } |
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196 | |||
197 | private function getClientPurseByCurrency(string $currency): Purse |
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198 | { |
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199 | $purse = $this->client->getPurseByCurrency($currency); |
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200 | if ($purse !== null) { |
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201 | return $purse; |
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202 | } |
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203 | |||
204 | $firstPurse = $this->client->getPrimaryPurse(); |
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205 | if ($firstPurse === null) { |
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206 | throw new LogicException('Primary purse was not found'); |
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207 | } |
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208 | |||
209 | $fakePurse = clone $firstPurse; |
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210 | $fakePurse->id = null; |
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211 | $fakePurse->currency = $currency; |
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212 | $fakePurse->balance = 0; |
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213 | $fakePurse->credit = 0; |
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214 | |||
215 | return $fakePurse; |
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216 | } |
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217 | |||
218 | private function numberFormat(string $amount, string $currencyCode): string |
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219 | { |
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220 | return number_format($amount, 2, '.', ''); |
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221 | } |
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222 | } |
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223 |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.