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<?php |
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namespace Bmatovu\Ussd\Traits; |
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use Bmatovu\Ussd\Contracts\RenderableTag; |
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use Illuminate\Container\Container; |
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use Illuminate\Contracts\Config\Repository as ConfigRepository; |
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use Illuminate\Support\Str; |
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trait ParserUtils |
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{ |
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public function __get(string $key) |
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{ |
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return $this->{$key}; |
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} |
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public function __set(string $key, $value) |
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{ |
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$this->{$key} = $value; |
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} |
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/** |
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* @see https://stackoverflow.com/q/413071/2732184 |
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* @see https://www.regextester.com/97707 |
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*/ |
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public function translate(string $text, string $pattern = '/[^{{\}\}]+(?=}})/'): string |
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{ |
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preg_match_all($pattern, $text, $matches); |
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if (0 === \count($matches[0])) { |
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return $text; |
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} |
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$replace_vars = []; |
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foreach ($matches[0] as $match) { |
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$var = Str::slug($match, '_'); |
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$replace_vars["{{{$match}}}"] = $this->store->get("{$prefix}{$var}", "{{$var}}"); |
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} |
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return strtr($text, $replace_vars); |
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} |
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protected function xpathFromStr(string $file): \DOMXPath |
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{ |
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$doc = new \DOMDocument(); |
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$doc->load($file); |
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return new \DOMXPath($doc); |
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} |
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protected function sessionExists(string $sessionId): bool |
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{ |
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$preSessionId = $this->store->get('_session_id', ''); |
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return $preSessionId === $sessionId; |
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} |
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protected function clean(string $code = ''): string |
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{ |
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if (! $code) { |
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return $code; |
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} |
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return rtrim(ltrim($code, '*'), '#'); |
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} |
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protected function getAnswer(?string $userInput): ?string |
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{ |
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if (null === $userInput) { |
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return ''; |
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} |
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$preAnswer = $this->store->get('_answer', ''); |
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$answer = $this->clean(str_replace($preAnswer, '', $userInput)); |
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if (null === $answer) { |
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return ''; |
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} |
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if (! $preAnswer || Str::endsWith($preAnswer, '*')) { |
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$this->store->append('_answer', "{$answer}*"); |
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} else { |
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$this->store->append('_answer', "*{$answer}*"); |
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} |
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return $answer; |
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} |
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protected function resolveTagName(\DOMNode $node): string |
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{ |
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$tagName = $node->tagName; |
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if ('action' !== strtolower($tagName)) { |
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return Str::studly("{$tagName}Tag"); |
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} |
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$tagName = $node->attributes->getNamedItem('name')->nodeValue; |
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return Str::studly("{$tagName}Action"); |
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} |
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protected function resolveTagClass(string $tagName): string |
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{ |
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$config = Container::getInstance()->make(ConfigRepository::class); |
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$tagNs = $config->get('ussd.tag-ns', []); |
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$actionNs = $config->get('ussd.action-ns', []); |
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$namespaces = array_merge($tagNs, $actionNs); |
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$fqcn = $tagName; |
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foreach ($namespaces as $ns) { |
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$fqcn = "{$ns}\\{$tagName}"; |
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if (class_exists($fqcn)) { |
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return $fqcn; |
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} |
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} |
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throw new \Exception("Missing tag {$tagName}."); |
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} |
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protected function instantiateTag(string $tagName, array $args = []): RenderableTag |
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{ |
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$fqcn = $this->resolveTagClass($tagName); |
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return \call_user_func_array([new \ReflectionClass($fqcn), 'newInstance'], $args); |
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} |
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} |
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mtvbrianking /
laravel-ussd
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