|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Bmatovu\Ussd; |
|
4
|
|
|
|
|
5
|
|
|
use Bmatovu\Ussd\Contracts\AnswerableTag; |
|
6
|
|
|
use Bmatovu\Ussd\Traits\ParserUtils; |
|
7
|
|
|
|
|
8
|
|
|
class Parser |
|
9
|
|
|
{ |
|
10
|
|
|
use ParserUtils; |
|
|
|
|
|
|
11
|
|
|
|
|
12
|
|
|
protected \DOMXPath $xpath; |
|
13
|
|
|
protected string $sessionId; |
|
14
|
|
|
protected Store $store; |
|
15
|
|
|
|
|
16
|
5 |
|
public function __construct(\DOMXPath $xpath, string $expression, string $sessionId, string $serviceCode = '') |
|
17
|
|
|
{ |
|
18
|
5 |
|
$this->xpath = $xpath; |
|
19
|
|
|
|
|
20
|
|
|
// $config = Container::getInstance()->make('config'); |
|
21
|
5 |
|
$store = config('ussd.cache.store', 'file'); |
|
22
|
5 |
|
$ttl = config('ussd.cache.ttl', 120); |
|
23
|
5 |
|
$this->store = new Store($store, $ttl, $sessionId); |
|
24
|
|
|
|
|
25
|
5 |
|
if ($this->sessionExists($sessionId)) { |
|
26
|
2 |
|
return; |
|
27
|
|
|
} |
|
28
|
|
|
|
|
29
|
3 |
|
$serviceCode = $this->clean($serviceCode); |
|
30
|
3 |
|
$this->store->put('_session_id', $sessionId); |
|
31
|
3 |
|
$this->store->put('_service_code', $serviceCode); |
|
32
|
3 |
|
$this->store->put('_answer', $serviceCode); |
|
33
|
3 |
|
$this->store->put('_pre', ''); |
|
34
|
3 |
|
$this->store->put('_exp', $expression); |
|
35
|
3 |
|
$this->store->put('_breakpoints', '[]'); |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
public function setOptions(array $options): self |
|
39
|
|
|
{ |
|
40
|
|
|
foreach ($options as $key => $value) { |
|
41
|
|
|
$this->store->put($key, $value); |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
return $this; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
5 |
|
public function parse(?string $userInput = ''): string |
|
48
|
|
|
{ |
|
49
|
|
|
// return $this->doParse($userInput); |
|
50
|
|
|
|
|
51
|
5 |
|
$answer = $this->getAnswer($userInput); |
|
52
|
|
|
|
|
53
|
5 |
|
\Illuminate\Support\Facades\Log::debug('__answers', [ |
|
54
|
5 |
|
'old' => $this->store->get('_answer'), |
|
55
|
|
|
'input' => $userInput, |
|
56
|
|
|
'new' => $answer, |
|
57
|
|
|
]); |
|
58
|
|
|
|
|
59
|
|
|
// return $output = $this->doParse($answer); |
|
60
|
|
|
|
|
61
|
5 |
|
$answers = explode('*', $answer); |
|
62
|
|
|
|
|
63
|
5 |
|
foreach ($answers as $answer) { |
|
64
|
5 |
|
$output = $this->doParse($answer); |
|
65
|
|
|
} |
|
66
|
|
|
|
|
67
|
3 |
|
return $output; |
|
|
|
|
|
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
5 |
|
protected function doParse(?string $answer = ''): ?string |
|
71
|
|
|
{ |
|
72
|
5 |
|
$this->doProcess($answer); |
|
73
|
|
|
|
|
74
|
5 |
|
$exp = $this->store->get('_exp'); |
|
75
|
5 |
|
$node = $this->xpath->query($exp)->item(0); |
|
76
|
|
|
|
|
77
|
5 |
|
if (! $node) { |
|
78
|
1 |
|
$this->doBreak(); |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
5 |
|
$output = $this->doRender(); |
|
82
|
|
|
|
|
83
|
3 |
|
if (! $output) { |
|
84
|
1 |
|
return $this->doParse($answer); |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
3 |
|
return $output; |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
5 |
|
protected function doProcess(?string $answer): void |
|
91
|
|
|
{ |
|
92
|
5 |
|
$pre = $this->store->get('_pre'); |
|
93
|
|
|
|
|
94
|
5 |
|
if (! $pre) { |
|
95
|
4 |
|
return; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
2 |
|
$preNode = $this->xpath->query($pre)->item(0); |
|
99
|
|
|
|
|
100
|
2 |
|
$tagName = $this->resolveTagName($preNode); |
|
101
|
2 |
|
$tag = $this->instantiateTag($tagName, [$preNode, $this->store]); |
|
102
|
|
|
|
|
103
|
2 |
|
if (! $tag instanceof AnswerableTag) { |
|
104
|
2 |
|
return; |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
$tag->process($answer); |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
1 |
|
protected function doBreak(): void |
|
111
|
|
|
{ |
|
112
|
1 |
|
$exp = $this->store->get('_exp'); |
|
113
|
|
|
|
|
114
|
1 |
|
$breakpoints = (array) json_decode((string) $this->store->get('_breakpoints'), true); |
|
115
|
|
|
|
|
116
|
1 |
|
if (! $breakpoints || ! isset($breakpoints[0][$exp])) { |
|
|
|
|
|
|
117
|
|
|
throw new \Exception('Missing tag'); |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
1 |
|
$breakpoint = array_shift($breakpoints); |
|
121
|
1 |
|
$this->store->put('_exp', $breakpoint[$exp]); |
|
122
|
1 |
|
$this->store->put('_breakpoints', json_encode($breakpoints)); |
|
123
|
|
|
} |
|
124
|
|
|
|
|
125
|
5 |
|
protected function doRender(): ?string |
|
126
|
|
|
{ |
|
127
|
5 |
|
$exp = $this->store->get('_exp'); |
|
128
|
|
|
|
|
129
|
5 |
|
$node = $this->xpath->query($exp)->item(0); |
|
130
|
|
|
|
|
131
|
5 |
|
$tagName = $this->resolveTagName($node); |
|
132
|
5 |
|
$tag = $this->instantiateTag($tagName, [$node, $this->store]); |
|
133
|
4 |
|
$output = $tag->handle(); |
|
134
|
|
|
|
|
135
|
3 |
|
$exp = $this->store->get('_exp'); |
|
136
|
3 |
|
$breakpoints = (array) json_decode((string) $this->store->get('_breakpoints'), true); |
|
137
|
|
|
|
|
138
|
3 |
|
if ($breakpoints && isset($breakpoints[0][$exp])) { |
|
|
|
|
|
|
139
|
|
|
$breakpoint = array_shift($breakpoints); |
|
140
|
|
|
$this->store->put('_exp', $breakpoint[$exp]); |
|
141
|
|
|
$this->store->put('_breakpoints', json_encode($breakpoints)); |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
3 |
|
return $output; |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
|
mtvbrianking /
laravel-ussd
Loading history...