|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
namespace PhpLightning\Invoice\Domain\LnAddress; |
|
6
|
|
|
|
|
7
|
|
|
use PhpLightning\Invoice\Domain\BackendInvoice\BackendInvoiceInterface; |
|
8
|
|
|
use PhpLightning\Invoice\Domain\Transfer\SendableRange; |
|
9
|
|
|
|
|
10
|
|
|
final class InvoiceGenerator |
|
11
|
|
|
{ |
|
12
|
|
|
public const MESSAGE_PAYMENT_RECEIVED = 'Payment received!'; |
|
13
|
|
|
|
|
14
|
3 |
|
public function __construct( |
|
15
|
|
|
private BackendInvoiceInterface $backendInvoice, |
|
16
|
|
|
private SendableRange $sendableRange, |
|
17
|
|
|
private string $lnAddress, |
|
18
|
|
|
) { |
|
19
|
3 |
|
} |
|
20
|
|
|
|
|
21
|
3 |
|
public function generateInvoice(int $milliSats): array |
|
22
|
|
|
{ |
|
23
|
3 |
|
if (!$this->sendableRange->contains($milliSats)) { |
|
24
|
1 |
|
return [ |
|
25
|
1 |
|
'status' => 'ERROR', |
|
26
|
1 |
|
'reason' => 'Amount is not between minimum and maximum sendable amount', |
|
27
|
1 |
|
]; |
|
28
|
|
|
} |
|
29
|
|
|
// Modify the description if you want to custom it |
|
30
|
|
|
// This will be the description on the wallet that pays your ln address |
|
31
|
|
|
// TODO: Make this customizable from some external configuration file |
|
32
|
2 |
|
$description = 'Pay to ' . $this->lnAddress; |
|
33
|
|
|
|
|
34
|
|
|
// TODO: images not implemented yet |
|
35
|
2 |
|
$imageMetadata = ''; |
|
36
|
2 |
|
$metadata = '[["text/plain","' . $description . '"],["text/identifier","' . $this->lnAddress . '"]' . $imageMetadata . ']'; |
|
37
|
|
|
|
|
38
|
2 |
|
$invoice = $this->backendInvoice->requestInvoice($milliSats / 1000, $metadata); |
|
39
|
|
|
|
|
40
|
2 |
|
if ($invoice['status'] === 'OK') { |
|
41
|
1 |
|
return $this->okResponse($invoice); |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
1 |
|
return $this->errorResponse($invoice); |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
1 |
|
private function okResponse(array $invoice): array |
|
48
|
|
|
{ |
|
49
|
1 |
|
return [ |
|
50
|
1 |
|
'pr' => $invoice['pr'], |
|
51
|
1 |
|
'status' => 'OK', |
|
52
|
1 |
|
'successAction' => [ |
|
53
|
1 |
|
'tag' => 'message', |
|
54
|
1 |
|
'message' => self::MESSAGE_PAYMENT_RECEIVED, |
|
55
|
1 |
|
], |
|
56
|
1 |
|
'routes' => [], |
|
57
|
1 |
|
'disposable' => false, |
|
58
|
1 |
|
]; |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
1 |
|
private function errorResponse(array $invoice): array |
|
62
|
|
|
{ |
|
63
|
1 |
|
return [ |
|
64
|
1 |
|
'status' => $invoice['status'], |
|
65
|
1 |
|
'reason' => $invoice['reason'], |
|
66
|
1 |
|
]; |
|
67
|
|
|
} |
|
68
|
|
|
} |
|
69
|
|
|
|
php-lightning /
lnaddress
