1 | <?php |
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2 | /** |
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3 | * PHP Billing Library |
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4 | * |
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5 | * @link https://github.com/hiqdev/php-billing |
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6 | * @package php-billing |
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7 | * @license BSD-3-Clause |
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8 | * @copyright Copyright (c) 2017-2018, HiQDev (http://hiqdev.com/) |
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9 | */ |
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10 | |||
11 | namespace hiqdev\php\billing\charge\modifiers; |
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12 | |||
13 | use hiqdev\php\billing\action\ActionInterface; |
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14 | use hiqdev\php\billing\charge\Charge; |
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15 | use hiqdev\php\billing\charge\ChargeInterface; |
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16 | use hiqdev\php\billing\charge\modifiers\addons\Discount; |
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17 | use hiqdev\php\billing\type\Type; |
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18 | use hiqdev\php\units\Quantity; |
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19 | use Money\Money; |
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20 | |||
21 | /** |
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22 | * Fixed discount. |
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23 | * |
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24 | * @author Andrii Vasyliev <[email protected]> |
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25 | */ |
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26 | class FixedDiscount extends Modifier |
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27 | { |
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28 | const VALUE = 'value'; |
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29 | |||
30 | 13 | public function __construct($value, array $addons = []) |
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31 | { |
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32 | 13 | parent::__construct($addons); |
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33 | 13 | $this->addAddon(self::VALUE, new Discount($value)); |
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34 | 13 | } |
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35 | |||
36 | 13 | public function getNext() |
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37 | { |
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38 | 13 | return $this; |
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39 | } |
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40 | |||
41 | 5 | public function getValue(ChargeInterface $charge = null): Discount |
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42 | { |
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43 | 5 | return $this->getAddon(self::VALUE); |
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44 | } |
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45 | |||
46 | 3 | public function isAbsolute() |
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47 | { |
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48 | 3 | return $this->getAddon(self::VALUE)->isAbsolute(); |
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49 | } |
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50 | |||
51 | 5 | public function isRelative() |
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52 | { |
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53 | 5 | return !$this->isAbsolute(); |
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54 | } |
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55 | |||
56 | 4 | public function calculateSum(ChargeInterface $charge = null): Money |
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57 | { |
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58 | 4 | return $this->getValue($charge)->calculateSum($charge); |
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59 | } |
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60 | |||
61 | 4 | private function getType() |
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62 | { |
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63 | 4 | $chargeTypeAddon = $this->getChargeType(); |
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64 | |||
65 | 4 | $type = $chargeTypeAddon ? $chargeTypeAddon->getValue() : 'discount,discount'; |
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66 | return new Type(Type::ANY, $type); |
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67 | 4 | } |
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68 | |||
69 | public function modifyCharge(?ChargeInterface $charge, ActionInterface $action): array |
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70 | 4 | { |
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71 | if ($charge === null) { |
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72 | 4 | return []; |
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73 | } |
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74 | |||
75 | $month = $action->getTime()->modify('first day of this month midnight'); |
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76 | 4 | if (!$this->checkPeriod($month)) { |
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77 | 4 | return [$charge]; |
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78 | } |
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79 | |||
80 | $sum = $this->calculateSum($charge)->multiply(-1); |
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81 | 4 | $usage = Quantity::create('items', 1); |
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82 | 4 | $type = $this->getType(); |
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83 | 4 | $price = $charge->getPrice(); |
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84 | 4 | $target = $charge->getTarget(); |
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85 | 4 | ||
86 | $discount = new Charge(null, $type, $target, $action, $price, $usage, $sum); |
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87 | 4 | $discount->setParent($charge); |
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88 | 4 | ||
89 | $reason = $this->getReason(); |
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90 | 4 | if ($reason) { |
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91 | 4 | $discount->setComment($reason->getValue()); |
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92 | } |
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93 | |||
94 | return [$charge, $discount]; |
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95 | 4 | } |
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96 | } |
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97 |