Code Coverage for /src/src/Domain/Basket/PriceFormatter.php

1	<?php
2
3	declare(strict_types=1);
4
5	namespace Alistaircol\Hta\Domain\Basket;
6
7	use Alistaircol\Hta\Domain\Basket\Exceptions\BasketTotalFormattingForIso4217NotImplementedException;
8	use Alistaircol\Hta\Domain\Basket\Exceptions\BasketTotalFormattingInvalidIso4217CodeException;
9
10	class PriceFormatter
11	{
12	public string $iso4217;
13
14	public function __construct(string $iso4217 = 'GBP')
15	{
16	$code = $this->canonicaliseIso4217Code($iso4217);
17
18	if (strlen($code) !== 3) {
19	throw BasketTotalFormattingInvalidIso4217CodeException::code($code);
20	}
21
22	$this->iso4217 = $code;
23	}
24
25	private function canonicaliseIso4217Code(string $iso4217): string
26	{
27	return strtoupper(trim($iso4217));
28	}
29
30	public function format(int $units): string
31	{
32	// TODO: install an ISO-4217 helper to format when necessary
33
34	switch ($this->iso4217) {
35	case 'GBP':
36	return '£' . number_format(($units / 100), 2);
37	default:
38	throw BasketTotalFormattingForIso4217NotImplementedException::format($units, $this->iso4217);
39	}
40	}
41	}