|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace BillingBoss\Interpreter; |
|
4
|
|
|
|
|
5
|
|
|
use BillingBoss\Exception\RangeException; |
|
6
|
|
|
use BillingBoss\Expr; |
|
7
|
|
|
use BillingBoss\BillContext; |
|
8
|
|
|
use BillingBoss\AbstractBillInterpreter; |
|
9
|
|
|
use BillingBoss\RangeHelper; |
|
10
|
|
|
use BillingBoss\Traits\RangeValidityCheck; |
|
11
|
|
|
|
|
12
|
|
|
/** |
|
13
|
|
|
* Flat rate bill interpreter |
|
14
|
|
|
* |
|
15
|
|
|
* @package BillingBoss |
|
16
|
|
|
* @link https://github.com/ranskills/billing-boss-php |
|
17
|
|
|
* @copyright Copyright (c) 2018 Ransford Ako Okpoti |
|
18
|
|
|
* @license Refer to the LICENSE distributed with this library |
|
19
|
|
|
* @since 1.0.0 |
|
20
|
|
|
*/ |
|
21
|
|
|
final class FlatRateBillInterpreter extends AbstractBillInterpreter |
|
22
|
|
|
{ |
|
23
|
|
|
use RangeValidityCheck; |
|
24
|
|
|
|
|
25
|
|
|
private const EXPRESSION = Expr::POSITIVE_NUMBER . |
|
26
|
|
|
Expr::COMMA . |
|
27
|
|
|
Expr::RANGE; |
|
28
|
|
|
|
|
29
|
|
|
public function __construct() |
|
30
|
|
|
{ |
|
31
|
|
|
parent::__construct(sprintf('/^(%1$s)(%2$s%1$s)*$/', self::EXPRESSION, Expr::PIPE)); |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @param BillContext $context |
|
36
|
|
|
* @return float |
|
37
|
|
|
* @throws RangeException |
|
38
|
|
|
*/ |
|
39
|
|
|
public function interpret(BillContext $context): float |
|
40
|
|
|
{ |
|
41
|
|
|
if (!$this->isValid($context)) { |
|
42
|
|
|
return 0; |
|
43
|
|
|
} |
|
44
|
|
|
$bill = 0.0; |
|
45
|
|
|
|
|
46
|
|
|
$parts = preg_split(sprintf('/%s/', Expr::PIPE), $context->getStructure()); |
|
47
|
|
|
$len = $parts === false ? 0 : count($parts); |
|
48
|
|
|
|
|
49
|
|
|
for ($i = 0; $i < $len; $i++) { |
|
50
|
|
|
$range = $this->ranges[$i]; |
|
51
|
|
|
$matches = []; |
|
52
|
|
|
|
|
53
|
|
|
\preg_match(sprintf('/^%s$/', self::EXPRESSION), $parts[$i], $matches); |
|
54
|
|
|
|
|
55
|
|
|
$amount = $context->getAmount(); |
|
56
|
|
|
if (RangeHelper::isInRange($range, $amount)) { |
|
57
|
|
|
$bill = $matches[1]; |
|
58
|
|
|
break; |
|
59
|
|
|
} |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
|
|
return $bill; |
|
63
|
|
|
} |
|
64
|
|
|
} |
|
65
|
|
|
|
ranskills /
billing-boss-php
