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1 | <?php declare(strict_types=1); |
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2 | |||
3 | namespace Sunfox\PriceCalculator; |
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4 | |||
5 | use Nette; |
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6 | |||
7 | |||
8 | /** |
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9 | * @property float $basePrice |
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10 | * @property IDiscount $discount |
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11 | * @property float $price |
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12 | * @property float $vatRate |
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13 | * @property float $priceVat |
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14 | * @property float $decimalPoints |
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15 | */ |
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16 | class PriceCalculator implements IPriceCalculator |
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17 | { |
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18 | use Nette\SmartObject; |
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19 | |||
20 | /** @var float */ |
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21 | protected $basePrice = 0.0; |
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22 | |||
23 | /** @var IDiscount|NULL */ |
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24 | protected $discount = NULL; |
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25 | |||
26 | /** @var float */ |
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27 | protected $price = 0.0; |
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28 | |||
29 | /** @var float */ |
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30 | protected $vatRate = 0.0; |
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31 | |||
32 | /** @var float */ |
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33 | protected $priceVat = 0.0; |
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34 | |||
35 | /** @var int */ |
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36 | protected $decimalPoints = 2; |
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37 | |||
38 | /** @var string */ |
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39 | protected $calculateFrom = self::FROM_BASEPRICE; |
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40 | |||
41 | |||
42 | /** |
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43 | * @param int|float VAT rate |
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44 | * @param int|float Price without VAT and discount |
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45 | * @param int|float Discount without VAT |
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46 | */ |
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47 | public function __construct($vatRate = 0.0, $basePrice = 0.0, IDiscount $discount = NULL) |
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48 | { |
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49 | $this->setVatRate($vatRate); |
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50 | $this->setBasePrice($basePrice); |
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51 | $this->setDiscount($discount); |
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52 | } |
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53 | |||
54 | /** |
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55 | * Get price without VAT and discount. |
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56 | * |
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57 | * @return float |
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58 | */ |
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59 | public function getBasePrice() |
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60 | { |
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61 | return $this->basePrice; |
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62 | } |
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63 | |||
64 | /** |
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65 | * Set price without VAT and discount. |
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66 | * |
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67 | * @param int|float |
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68 | * @return IPriceCalculator |
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69 | */ |
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70 | public function setBasePrice($value) |
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71 | { |
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72 | $this->basePrice = (float) $value; |
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73 | $this->calculateFrom = self::FROM_BASEPRICE; |
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74 | return $this; |
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75 | } |
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76 | |||
77 | /** |
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78 | * Get discount in percent without VAT. |
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79 | * |
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80 | * @return IDiscount |
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81 | */ |
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82 | public function getDiscount() |
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83 | { |
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84 | return $this->discount; |
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85 | } |
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86 | |||
87 | /** |
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88 | * Set discount instance. |
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89 | * |
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90 | * @param IDiscount |
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91 | * @return IPriceCalculator |
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92 | */ |
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93 | public function setDiscount(IDiscount $discount = NULL) |
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94 | { |
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95 | $this->discount = $discount; |
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96 | return $this; |
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97 | } |
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98 | |||
99 | /** |
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100 | * Set amount discount. |
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101 | * |
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102 | * @param int|float |
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103 | * @return IPriceCalculator |
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104 | */ |
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105 | public function setAmountDiscount($value) |
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106 | { |
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107 | $this->discount = new Discount\AmountDiscount($value); |
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108 | return $this; |
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109 | } |
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110 | |||
111 | /** |
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112 | * Set percent discount. |
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113 | * |
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114 | * @param int|float |
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115 | * @return IPriceCalculator |
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116 | */ |
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117 | public function setPercentDiscount($value) |
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118 | { |
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119 | $this->discount = new Discount\PercentDiscount($value); |
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120 | return $this; |
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121 | } |
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122 | |||
123 | /** |
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124 | * Get price after discount without VAT. |
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125 | * |
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126 | * @return float |
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127 | */ |
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128 | public function getPrice() |
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129 | { |
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130 | return $this->price; |
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131 | } |
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132 | |||
133 | /** |
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134 | * Set price after discount without VAT. |
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135 | * |
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136 | * @param int|float |
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137 | * @return IPriceCalculator |
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138 | */ |
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139 | public function setPrice($value) |
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140 | { |
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141 | $this->price = (float) $value; |
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142 | $this->calculateFrom = self::FROM_PRICE; |
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143 | return $this; |
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144 | } |
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145 | |||
146 | /** |
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147 | * Get VAT rate in percent. |
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148 | * |
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149 | * @return float |
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150 | */ |
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151 | public function getVatRate() |
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152 | { |
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153 | return $this->vatRate; |
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154 | } |
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155 | |||
156 | /** |
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157 | * Set VAT rate in percent. |
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158 | * |
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159 | * @param int|float |
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160 | * @return IPriceCalculator |
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161 | */ |
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162 | public function setVatRate($value) |
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163 | { |
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164 | $this->vatRate = (float) $value; |
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165 | return $this; |
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166 | } |
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167 | |||
168 | /** |
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169 | * Get price after discount with VAT. |
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170 | * |
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171 | * @return float |
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172 | */ |
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173 | public function getPriceVat() |
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174 | { |
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175 | return $this->priceVat; |
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176 | } |
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177 | |||
178 | /** |
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179 | * Set price after discount with VAT. |
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180 | * |
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181 | * @param int|float |
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182 | * @return IPriceCalculator |
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183 | */ |
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184 | public function setPriceVat($value) |
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185 | { |
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186 | $this->priceVat = (float) $value; |
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187 | $this->calculateFrom = self::FROM_PRICEVAT; |
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188 | return $this; |
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189 | } |
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190 | |||
191 | /** |
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192 | * Get decimal point for rounding. |
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193 | * |
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194 | * @return float |
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195 | */ |
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196 | public function getDecimalPoints() |
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197 | { |
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198 | return $this->decimalPoints; |
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199 | } |
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200 | |||
201 | /** |
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202 | * Set decimal point for rounding. |
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203 | * |
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204 | * @param int |
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205 | * @return IPriceCalculator |
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206 | */ |
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207 | public function setDecimalPoints($value) |
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208 | { |
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209 | $this->decimalPoints = (int) $value; |
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210 | return $this; |
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211 | } |
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212 | |||
213 | /** |
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214 | * Calculate prices and return result. |
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215 | * |
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216 | * @return PriceCalculatorResult |
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217 | */ |
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218 | public function calculate() |
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219 | { |
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220 | $basePrice = round($this->basePrice, $this->decimalPoints); |
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221 | $price = round($this->price, $this->decimalPoints); |
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222 | $priceVat = round($this->priceVat, $this->decimalPoints); |
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223 | |||
224 | if ($this->calculateFrom === self::FROM_BASEPRICE) { |
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225 | $price = round($this->discount ? $this->discount->addDiscount($basePrice) : $basePrice, $this->decimalPoints); |
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226 | $priceVat = round($price * ($this->vatRate / 100 + 1), $this->decimalPoints); |
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227 | } elseif ($this->calculateFrom === self::FROM_PRICE) { |
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228 | $basePrice = $this->discount ? round($this->discount->removeDiscount($price), $this->decimalPoints) : $price; |
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229 | $priceVat = round($price * ($this->vatRate / 100 + 1), $this->decimalPoints); |
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230 | } elseif ($this->calculateFrom === self::FROM_PRICEVAT) { |
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231 | $price = round($priceVat / ($this->vatRate / 100 + 1), $this->decimalPoints); |
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232 | $basePrice = $this->discount ? round($this->discount->removeDiscount($price), $this->decimalPoints) : $price; |
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233 | } |
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234 | |||
235 | $vat = $priceVat - $price; |
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236 | |||
237 | return new PriceCalculatorResult( |
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238 | $this, $basePrice, $this->discount, $price, $this->vatRate, $vat, $priceVat |
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239 | ); |
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240 | } |
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241 | |||
242 | } |
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243 |