smrealms /
smr
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| Total Complexity | 57 |
| Total Lines | 265 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 1 |
Complex classes like Template 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 Template, and based on these observations, apply Extract Interface, too.
| 1 | <?php declare(strict_types=1); |
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| 11 | class Template { |
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| 12 | |||
| 13 | /** @var array<string, mixed> */ |
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| 14 | private array $data = []; |
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| 15 | private int $nestedIncludes = 0; |
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| 16 | /** @var array<string, mixed> */ |
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| 17 | private array $ajaxJS = []; |
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| 18 | /** @var array<string> */ |
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| 19 | protected array $jsAlerts = []; |
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| 20 | /** @var array<string> */ |
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| 21 | protected array $jsSources = []; |
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| 22 | |||
| 23 | /** |
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| 24 | * Defines a listjs_include.js function to call at the end of the HTML body. |
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| 25 | */ |
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| 26 | public ?string $listjsInclude = null; |
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| 27 | |||
| 28 | /** |
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| 29 | * Return the Smr\Template in the DI container. |
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| 30 | * If one does not exist yet, it will be created. |
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| 31 | * This is the intended way to construct this class. |
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| 32 | */ |
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| 33 | public static function getInstance(): self { |
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| 34 | return DiContainer::get(self::class); |
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| 35 | } |
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| 36 | |||
| 37 | public function hasTemplateVar(string $var): bool { |
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| 38 | return isset($this->data[$var]); |
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| 39 | } |
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| 40 | |||
| 41 | public function assign(string $var, mixed $value): void { |
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| 42 | if (!isset($this->data[$var])) { |
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| 43 | $this->data[$var] = $value; |
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| 44 | } else { |
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| 45 | // We insist that template variables not change once they are set |
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| 46 | throw new Exception("Cannot re-assign template variable '$var'!"); |
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| 47 | } |
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| 48 | } |
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| 49 | |||
| 50 | public function unassign(string $var): void { |
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| 52 | } |
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| 53 | |||
| 54 | /** |
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| 55 | * Displays the template HTML. Stores any ajax-enabled elements for future |
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| 56 | * comparison, and outputs modified elements in XML for ajax if requested. |
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| 57 | */ |
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| 58 | public function display(string $templateName, bool $outputXml = false): void { |
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| 59 | // If we already started output buffering before calling `display`, |
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| 60 | // we may have unwanted content in the buffer that we need to remove |
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| 61 | // before we send the Content-Type headers below. |
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| 62 | // Skip this for debug builds to help discover offending output. |
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| 63 | if (!ENABLE_DEBUG) { |
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| 64 | if (ob_get_length() > 0) { |
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| 65 | ob_clean(); |
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| 66 | } |
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| 67 | } |
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| 68 | ob_start(); |
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| 69 | $this->includeTemplate($templateName); |
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| 70 | $output = ob_get_clean(); |
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| 71 | if ($output === false) { |
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| 72 | throw new Exception('Output buffering is not active!'); |
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| 73 | } |
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| 74 | |||
| 75 | $ajaxEnabled = ($this->data['AJAX_ENABLE_REFRESH'] ?? false) !== false; |
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| 76 | if ($ajaxEnabled) { |
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| 77 | $ajaxXml = $this->convertHtmlToAjaxXml($output, $outputXml); |
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| 78 | if ($outputXml) { |
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| 79 | /* Left out for size: <?xml version="1.0" encoding="ISO-8859-1"?>*/ |
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| 80 | $output = '<all>' . $ajaxXml . '</all>'; |
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| 81 | } |
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| 82 | $session = Session::getInstance(); |
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| 83 | $session->saveAjaxReturns(); |
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| 84 | } |
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| 85 | |||
| 86 | // Now that we are completely done processing, we can output |
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| 87 | if ($outputXml) { |
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| 88 | header('Content-Type: text/xml; charset=utf-8'); |
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| 89 | } else { |
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| 90 | header('Content-Type: text/html; charset=utf-8'); |
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| 91 | } |
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| 92 | echo $output; |
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| 93 | } |
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| 94 | |||
| 95 | |||
| 96 | protected function getTemplateLocation(string $templateName): string { |
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| 97 | if (isset($this->data['ThisAccount'])) { |
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| 98 | $templateDir = $this->data['ThisAccount']->getTemplate() . '/'; |
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| 99 | } else { |
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| 100 | $templateDir = 'Default/'; |
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| 101 | } |
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| 102 | $templateDirs = array_unique([$templateDir, 'Default/']); |
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| 103 | $gameDirs = array_unique([get_game_dir(), 'Default/']); |
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| 104 | |||
| 105 | foreach ($gameDirs as $gameDir) { |
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| 106 | foreach ($templateDirs as $templateDir) { |
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| 107 | $filePath = TEMPLATES . $templateDir . 'engine/' . $gameDir . $templateName; |
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| 108 | if (is_file($filePath)) { |
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| 109 | return $filePath; |
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| 110 | } |
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| 111 | } |
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| 112 | } |
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| 113 | foreach ($templateDirs as $templateDir) { |
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| 114 | $filePath = TEMPLATES . $templateDir . $templateName; |
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| 115 | if (is_file($filePath)) { |
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| 116 | return $filePath; |
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| 117 | } |
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| 118 | } |
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| 119 | throw new Exception('No template found for ' . $templateName); |
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| 120 | } |
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| 121 | |||
| 122 | /** |
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| 123 | * @param array<string, mixed> $assignVars |
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| 124 | */ |
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| 125 | protected function includeTemplate(string $templateName, array $assignVars = null): void { |
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| 126 | if ($this->nestedIncludes > 15) { |
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| 127 | throw new Exception('Nested more than 15 template includes, is something wrong?'); |
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| 128 | } |
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| 129 | foreach ($this->data as $key => $value) { |
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| 130 | $$key = $value; |
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| 131 | } |
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| 132 | if ($assignVars !== null) { |
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| 133 | foreach ($assignVars as $key => $value) { |
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| 134 | $$key = $value; |
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| 135 | } |
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| 136 | } |
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| 137 | $this->nestedIncludes++; |
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| 138 | require($this->getTemplateLocation($templateName)); |
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| 139 | $this->nestedIncludes--; |
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| 140 | } |
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| 141 | |||
| 142 | /** |
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| 143 | * Check if the HTML includes input elements where the user is able to |
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| 144 | * input data (i.e. we don't want to AJAX update a form that they may |
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| 145 | * have already started filling out). |
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| 146 | */ |
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| 147 | protected function checkDisableAJAX(string $html): bool { |
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| 148 | return preg_match('/<input (?![^>]*(submit|hidden|image))/i', $html) != 0; |
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| 149 | } |
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| 150 | |||
| 151 | protected function doDamageTypeReductionDisplay(int &$damageTypes): void { |
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| 152 | if ($damageTypes == 3) { |
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| 153 | echo ', '; |
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| 154 | } elseif ($damageTypes == 2) { |
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| 155 | echo ' and '; |
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| 156 | } |
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| 157 | $damageTypes--; |
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| 158 | } |
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| 159 | |||
| 160 | protected function doAn(string $wordAfter): string { |
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| 161 | $char = strtoupper($wordAfter[0]); |
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| 162 | return str_contains('AEIOU', $char) ? 'an' : 'a'; |
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| 163 | } |
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| 164 | |||
| 165 | /* |
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| 166 | * EVAL is special (well, will be when needed and implemented in the javascript). |
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| 167 | */ |
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| 168 | public function addJavascriptForAjax(string $varName, mixed $obj): string { |
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| 169 | if ($varName == 'EVAL') { |
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| 170 | if (!isset($this->ajaxJS['EVAL'])) { |
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| 171 | return $this->ajaxJS['EVAL'] = $obj; |
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| 172 | } |
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| 173 | return $this->ajaxJS['EVAL'] .= ';' . $obj; |
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| 174 | } |
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| 175 | |||
| 176 | if (isset($this->ajaxJS[$varName])) { |
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| 177 | throw new Exception('Trying to set javascript val twice: ' . $varName); |
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| 178 | } |
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| 179 | return $this->ajaxJS[$varName] = json_encode($obj); |
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| 180 | } |
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| 181 | |||
| 182 | protected function addJavascriptAlert(string $string): void { |
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| 186 | } |
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| 187 | } |
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| 188 | |||
| 189 | /** |
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| 190 | * Registers a JS target for inclusion at the end of the HTML body. |
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| 191 | */ |
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| 192 | protected function addJavascriptSource(string $src): void { |
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| 194 | } |
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| 195 | |||
| 196 | protected function convertHtmlToAjaxXml(string $str, bool $returnXml): string { |
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| 276 | } |
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| 277 | |||
| 278 | } |
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| 279 |
