| Total Complexity | 44 | 
| Total Lines | 294 | 
| Duplicated Lines | 0 % | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
Complex classes like Generator often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Generator, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 21 | class Generator  | 
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| 22 | { | 
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| 23 | use \Jaxon\Features\Config;  | 
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| 24 | use \Jaxon\Features\Minifier;  | 
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| 25 | |||
| 26 | /**  | 
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| 27 | * Default library URL  | 
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| 28 | *  | 
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| 29 | * @var string  | 
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| 30 | */  | 
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| 31 | const JS_LIB_URL = 'https://cdn.jsdelivr.net/gh/jaxon-php/[email protected]/dist';  | 
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| 32 | |||
| 33 | /**  | 
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| 34 | * The objects that generate code  | 
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| 35 | *  | 
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| 36 | * @var array<GeneratorContract>  | 
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| 37 | */  | 
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| 38 | protected $aGenerators = [];  | 
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| 39 | |||
| 40 | /**  | 
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| 41 | * The Jaxon template engine  | 
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| 42 | *  | 
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| 43 | * @var TemplateEngine  | 
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| 44 | */  | 
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| 45 | protected $xTemplateEngine;  | 
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| 46 | |||
| 47 | /**  | 
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| 48 | * The constructor  | 
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| 49 | *  | 
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| 50 | * @param TemplateEngine $xTemplateEngine The template engine  | 
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| 51 | */  | 
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| 52 | public function __construct(TemplateEngine $xTemplateEngine)  | 
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| 53 |     { | 
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| 54 | $this->xTemplateEngine = $xTemplateEngine;  | 
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| 55 | }  | 
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| 56 | |||
| 57 | /**  | 
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| 58 | * Get the correspondances between previous and current config options  | 
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| 59 | *  | 
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| 60 | * @return array  | 
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| 61 | */  | 
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| 62 | private function getOptionVars()  | 
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| 63 |     { | 
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| 64 | return [  | 
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| 65 | 'sResponseType' => 'JSON',  | 
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| 66 |             'sVersion'                  => $this->getOption('core.version'), | 
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| 67 |             'sLanguage'                 => $this->getOption('core.language'), | 
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| 68 |             'bLanguage'                 => $this->hasOption('core.language') ? true : false, | 
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| 69 |             'sRequestURI'               => $this->getOption('core.request.uri'), | 
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| 70 |             'sDefaultMode'              => $this->getOption('core.request.mode'), | 
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| 71 |             'sDefaultMethod'            => $this->getOption('core.request.method'), | 
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| 72 |             'sCsrfMetaName'             => $this->getOption('core.request.csrf_meta'), | 
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| 73 |             'bDebug'                    => $this->getOption('core.debug.on'), | 
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| 74 |             'bVerboseDebug'             => $this->getOption('core.debug.verbose'), | 
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| 75 |             'sDebugOutputID'            => $this->getOption('core.debug.output_id'), | 
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| 76 |             'nResponseQueueSize'        => $this->getOption('js.lib.queue_size'), | 
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| 77 |             'sStatusMessages'           => $this->getOption('js.lib.show_status') ? 'true' : 'false', | 
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| 78 |             'sWaitCursor'               => $this->getOption('js.lib.show_cursor') ? 'true' : 'false', | 
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| 79 |             'sDefer'                    => $this->getOption('js.app.options', ''), | 
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| 80 | ];  | 
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| 81 | }  | 
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| 82 | |||
| 83 | /**  | 
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| 84 | * Render a template in the 'plugins' subdir  | 
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| 85 | *  | 
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| 86 | * @param string $sTemplate The template filename  | 
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| 87 | * @param array $aVars The template variables  | 
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| 88 | *  | 
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| 89 | * @return string  | 
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| 90 | */  | 
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| 91 | private function _render($sTemplate, array $aVars = [])  | 
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| 92 |     { | 
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| 93 |         $aVars['sJsOptions'] = $this->getOption('js.app.options', ''); | 
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| 94 |         return $this->xTemplateEngine->render("jaxon::plugins/$sTemplate", $aVars); | 
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| 95 | }  | 
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| 96 | |||
| 97 | /**  | 
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| 98 | * Add a new generator to the list  | 
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| 99 | *  | 
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| 100 | * @param GeneratorContract $xGenerator The code generator  | 
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| 101 | * @param integer $nPriority The desired priority, used to order the plugins  | 
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| 102 | *  | 
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| 103 | * @return void  | 
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| 104 | */  | 
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| 105 | public function addGenerator(GeneratorContract $xGenerator, $nPriority)  | 
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| 106 |     { | 
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| 107 | while(isset($this->aGenerators[$nPriority]))  | 
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| 108 |         { | 
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| 109 | $nPriority++;  | 
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| 110 | }  | 
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| 111 | $this->aGenerators[$nPriority] = $xGenerator;  | 
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| 112 | // Sort the array by ascending keys  | 
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| 113 | ksort($this->aGenerators);  | 
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| 114 | }  | 
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| 115 | |||
| 116 | /**  | 
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| 117 | * Generate a hash for all the javascript code generated by the library  | 
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| 118 | *  | 
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| 119 | * @return string  | 
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| 120 | */  | 
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| 121 | private function getHash()  | 
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| 122 |     { | 
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| 123 | $sHash = jaxon()->getVersion();  | 
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| 124 | foreach($this->aGenerators as $xGenerator)  | 
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| 125 |         { | 
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| 126 | $sHash .= $xGenerator->getHash();  | 
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| 127 | }  | 
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| 128 | return md5($sHash);  | 
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| 129 | }  | 
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| 130 | |||
| 131 | /**  | 
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| 132 | * Get the HTML tags to include Jaxon CSS code and files into the page  | 
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| 133 | *  | 
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| 134 | * @return string  | 
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| 135 | */  | 
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| 136 | public function getCss()  | 
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| 137 |     { | 
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| 138 | $sCssCode = '';  | 
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| 139 | foreach($this->aGenerators as $xGenerator)  | 
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| 140 |         { | 
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| 141 | $sCssCode = rtrim($sCssCode, " \n") . "\n" . $xGenerator->getCss();  | 
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| 142 | }  | 
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| 143 | return rtrim($sCssCode, " \n") . "\n";  | 
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| 144 | }  | 
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| 145 | |||
| 146 | /**  | 
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| 147 | * Get the HTML tags to include Jaxon javascript files into the page  | 
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| 148 | *  | 
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| 149 | * @return string  | 
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| 150 | */  | 
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| 151 | public function getJs()  | 
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| 152 |     { | 
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| 153 |         $sJsExtension = $this->getOption('js.app.minify') ? '.min.js' : '.js'; | 
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| 154 | |||
| 155 | // The URI for the javascript library files  | 
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| 156 |         $sJsLibUri = rtrim($this->getOption('js.lib.uri', self::JS_LIB_URL), '/') . '/'; | 
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| 157 | // Add component files to the javascript file array;  | 
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| 158 | $aJsFiles = [$sJsLibUri . 'jaxon.core' . $sJsExtension];  | 
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| 159 |         if($this->getOption('core.debug.on')) | 
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| 160 |         { | 
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| 161 |             $sLanguage = $this->getOption('core.language'); | 
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| 162 | $aJsFiles[] = $sJsLibUri . 'jaxon.debug' . $sJsExtension;  | 
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| 163 | $aJsFiles[] = $sJsLibUri . 'lang/jaxon.' . $sLanguage . $sJsExtension;  | 
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| 164 |             /*if($this->getOption('core.debug.verbose')) | 
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| 165 |             { | 
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| 166 | $aJsFiles[] = $sJsLibUri . 'jaxon.verbose' . $sJsExtension;  | 
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| 167 | }*/  | 
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| 168 | }  | 
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| 169 |         $sJsFiles = $this->_render('includes.js', ['aUrls' => $aJsFiles]); | 
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| 170 | |||
| 171 | $sJsCode = '';  | 
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| 172 | foreach($this->aGenerators as $xGenerator)  | 
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| 173 |         { | 
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| 174 | $sJsCode = rtrim($sJsCode, " \n") . "\n" . $xGenerator->getJs();  | 
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| 175 | }  | 
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| 176 | return $sJsFiles . "\n" . rtrim($sJsCode, " \n") . "\n";  | 
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| 177 | }  | 
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| 178 | |||
| 179 | /**  | 
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| 180 | * Get the javascript code to be sent to the browser  | 
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| 181 | *  | 
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| 182 | * @return string  | 
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| 183 | */  | 
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| 184 | private function _getScript()  | 
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| 185 |     { | 
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| 186 | $sScript = '';  | 
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| 187 | $sReadyScript = '';  | 
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| 188 | foreach($this->aGenerators as $xGenerator)  | 
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| 189 |         { | 
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| 190 | $sScript .= rtrim($xGenerator->getScript(), " \n") . "\n";  | 
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| 191 | if($xGenerator->readyEnabled() && !$xGenerator->readyInlined())  | 
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| 192 |             { | 
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| 193 | // Ready code which can nbe exported to an external file.  | 
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| 194 | $sReadyScript .= rtrim($xGenerator->getReadyScript(), " \n") . "\n";  | 
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| 195 | }  | 
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| 196 | }  | 
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| 197 | |||
| 198 | // These three parts are always rendered together  | 
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| 199 | $aConfigVars = $this->getOptionVars();  | 
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| 200 |         return $this->_render('config.js', $aConfigVars) . "\n" . $sScript . "\n" . | 
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| 201 |             $this->_render('ready.js', ['sScript' => $sReadyScript]); | 
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| 202 | }  | 
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| 203 | |||
| 204 | /**  | 
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| 205 | * Get the javascript code to include directly in HTML  | 
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| 206 | *  | 
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| 207 | * @return string  | 
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| 208 | */  | 
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| 209 | private function _getInlineScript()  | 
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| 210 |     { | 
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| 211 | $sScript = '';  | 
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| 212 | foreach($this->aGenerators as $xGenerator)  | 
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| 213 |         { | 
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| 214 | if($xGenerator->readyEnabled() && $xGenerator->readyInlined())  | 
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| 215 |             { | 
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| 216 | // Ready code which must be inlined in HTML.  | 
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| 217 | $sScript .= rtrim($xGenerator->getReadyScript(), " \n") . "\n";  | 
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| 218 | }  | 
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| 219 | }  | 
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| 220 |         return $this->_render('ready.js', ['sScript' => $sScript]); | 
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| 221 | }  | 
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| 222 | |||
| 223 | /**  | 
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| 224 | * Get the javascript file name  | 
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| 225 | *  | 
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| 226 | * @return void  | 
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| 227 | */  | 
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| 228 | private function getJsFileName()  | 
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| 229 |     { | 
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| 230 | // Check config options  | 
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| 231 | // - The js.app.export option must be set to true  | 
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| 232 | // - The js.app.uri and js.app.dir options must be set to non null values  | 
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| 233 |         if(!$this->getOption('js.app.export') || | 
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| 234 |             !$this->getOption('js.app.uri') || | 
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| 235 |             !$this->getOption('js.app.dir')) | 
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| 236 |         { | 
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| 237 | return '';  | 
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| 238 | }  | 
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| 239 | |||
| 240 | // The file name  | 
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| 241 |         return $this->hasOption('js.app.file') ? $this->getOption('js.app.file') : $this->getHash(); | 
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| 242 | }  | 
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| 243 | |||
| 244 | /**  | 
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| 245 | * Write javascript files and return the corresponding URI  | 
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| 246 | *  | 
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| 247 | * @return string  | 
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| 248 | */  | 
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| 249 | public function createFiles($sJsDirectory, $sJsFileName)  | 
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| 250 |     { | 
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| 251 | // Check dir access  | 
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| 252 | // - The js.app.dir must be writable  | 
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| 253 | if(!$sJsFileName || !is_dir($sJsDirectory) || !is_writable($sJsDirectory))  | 
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| 254 |         { | 
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| 255 | return '';  | 
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| 256 | }  | 
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| 257 | |||
| 258 | $sOutFile = $sJsFileName . '.js';  | 
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| 259 | $sMinFile = $sJsFileName . '.min.js';  | 
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| 260 | if(!is_file($sJsDirectory . $sOutFile))  | 
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| 261 |         { | 
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| 262 | if(!file_put_contents($sJsDirectory . $sOutFile, $this->_getScript()))  | 
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| 263 |             { | 
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| 264 | return '';  | 
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| 265 | }  | 
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| 266 | }  | 
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| 267 |         if(($this->getOption('js.app.minify')) && !is_file($sJsDirectory . $sMinFile)) | 
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| 268 |         { | 
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| 269 | if(!$this->minify($sJsDirectory . $sOutFile, $sJsDirectory . $sMinFile))  | 
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| 270 |             { | 
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| 271 | return '';  | 
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| 272 | }  | 
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| 273 | }  | 
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| 274 | |||
| 275 |         $sJsAppUri = rtrim($this->getOption('js.app.uri'), '/') . '/'; | 
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| 276 |         $sJsExtension = $this->getOption('js.app.minify') ? '.min.js' : '.js'; | 
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| 277 | return $sJsAppUri . $sJsFileName . $sJsExtension;  | 
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| 278 | }  | 
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| 279 | |||
| 280 | /**  | 
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| 281 | * Get the javascript code to be sent to the browser  | 
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| 282 | *  | 
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| 283 | * @param boolean $bIncludeJs Also get the JS files  | 
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| 284 | * @param boolean $bIncludeCss Also get the CSS files  | 
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| 285 | *  | 
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| 286 | * @return string  | 
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| 287 | */  | 
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| 288 | public function getScript($bIncludeJs, $bIncludeCss)  | 
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| 315 | ]);  | 
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| 316 | }  | 
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| 317 | }  | 
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| 318 |