|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* PHP Billing Library |
|
4
|
|
|
* |
|
5
|
|
|
* @link https://github.com/hiqdev/php-billing |
|
6
|
|
|
* @package php-billing |
|
7
|
|
|
* @license BSD-3-Clause |
|
8
|
|
|
* @copyright Copyright (c) 2017, HiQDev (http://hiqdev.com/) |
|
9
|
|
|
*/ |
|
10
|
|
|
|
|
11
|
|
|
namespace hiqdev\php\billing\price; |
|
12
|
|
|
|
|
13
|
|
|
use hiqdev\php\billing\target\TargetInterface; |
|
14
|
|
|
use hiqdev\php\billing\type\TypeInterface; |
|
15
|
|
|
use hiqdev\php\units\QuantityInterface; |
|
16
|
|
|
use hiqdev\php\units\UnitInterface; |
|
17
|
|
|
use Money\Currency; |
|
18
|
|
|
use Money\Money; |
|
19
|
|
|
|
|
20
|
|
|
/** |
|
21
|
|
|
* Enum Price: |
|
22
|
|
|
* - holds sums list: amount => total sum for the quantity NOT price per unit |
|
23
|
|
|
* - listed quantities only else exception. |
|
24
|
|
|
* @see PriceInterface |
|
25
|
|
|
* |
|
26
|
|
|
* @author Andrii Vasyliev <[email protected]> |
|
27
|
|
|
*/ |
|
28
|
|
|
class EnumPrice extends AbstractPrice |
|
29
|
|
|
{ |
|
30
|
|
|
/** |
|
31
|
|
|
* @var UnitInterface |
|
32
|
|
|
*/ |
|
33
|
|
|
protected $unit; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* @var Currency |
|
37
|
|
|
*/ |
|
38
|
|
|
protected $currency; |
|
39
|
|
|
|
|
40
|
|
|
/** |
|
41
|
|
|
* @var array quantity => total sum for the quantity |
|
42
|
|
|
*/ |
|
43
|
|
|
protected $sums; |
|
44
|
|
|
|
|
45
|
2 |
|
public function __construct( |
|
46
|
|
|
$id, |
|
47
|
|
|
TypeInterface $type, |
|
48
|
|
|
TargetInterface $target, |
|
49
|
|
|
UnitInterface $unit, |
|
50
|
|
|
Currency $currency, |
|
51
|
|
|
array $sums |
|
52
|
|
|
) { |
|
53
|
2 |
|
parent::__construct($id, $type, $target); |
|
54
|
2 |
|
$this->unit = $unit; |
|
55
|
2 |
|
$this->currency = $currency; |
|
56
|
2 |
|
$this->sums = $sums; |
|
57
|
2 |
|
} |
|
58
|
|
|
|
|
59
|
1 |
|
public function getUnit() |
|
60
|
|
|
{ |
|
61
|
1 |
|
return $this->unit; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
1 |
|
public function getCurrency() |
|
65
|
|
|
{ |
|
66
|
1 |
|
return $this->currency; |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
1 |
|
public function getSums() |
|
70
|
|
|
{ |
|
71
|
1 |
|
return $this->sums; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* {@inheritdoc} |
|
76
|
|
|
*/ |
|
77
|
2 |
|
public function calculateSum(QuantityInterface $quantity) |
|
78
|
|
|
{ |
|
79
|
2 |
|
$usage = $this->calculateUsage($quantity)->getQuantity(); |
|
80
|
|
|
|
|
81
|
2 |
|
foreach ($this->sums as $value => $price) { |
|
82
|
2 |
|
if ((string) $value === (string) $usage) { |
|
83
|
2 |
|
return new Money($price, $this->currency); |
|
84
|
|
|
} |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
throw new FailedCalculatePriceException('not enumed quantity: ' . $usage); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
/** |
|
91
|
|
|
* {@inheritdoc} |
|
92
|
|
|
*/ |
|
93
|
|
|
public function calculatePrice(QuantityInterface $quantity) |
|
94
|
|
|
{ |
|
95
|
|
|
$sum = $this->calculateSum($quantity); |
|
96
|
|
|
if ($sum === null) { |
|
97
|
|
|
return null; |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
$usage = $this->calculateUsage($quantity); |
|
101
|
|
|
if ($usage === null) { |
|
102
|
|
|
return null; |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
return $sum->divide($usage->getQuantity()); |
|
106
|
|
|
} |
|
107
|
|
|
|
|
108
|
|
|
/** |
|
109
|
|
|
* {@inheritdoc} |
|
110
|
|
|
*/ |
|
111
|
2 |
|
public function calculateUsage(QuantityInterface $quantity) |
|
112
|
|
|
{ |
|
113
|
2 |
|
return $quantity->convert($this->unit); |
|
114
|
|
|
} |
|
115
|
|
|
} |
|
116
|
|
|
|
hiqdev /
php-billing
