php-school /
cli-menu
| Total Complexity | 56 |
| Total Lines | 445 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like CliMenuBuilder 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 CliMenuBuilder, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 23 | class CliMenuBuilder |
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| 24 | { |
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| 25 | /** |
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| 26 | * @var CliMenu |
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| 27 | */ |
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| 28 | private $menu; |
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| 29 | |||
| 30 | /** |
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| 31 | * @var string |
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| 32 | */ |
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| 33 | private $goBackButtonText = 'Go Back'; |
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| 34 | |||
| 35 | /** |
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| 36 | * @var string |
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| 37 | */ |
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| 38 | private $exitButtonText = 'Exit'; |
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| 39 | |||
| 40 | /** |
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| 41 | * @var MenuStyle |
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| 42 | */ |
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| 43 | private $style; |
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| 44 | |||
| 45 | /** |
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| 46 | * @var Terminal |
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| 47 | */ |
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| 48 | private $terminal; |
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| 49 | |||
| 50 | /** |
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| 51 | * @var bool |
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| 52 | */ |
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| 53 | private $disableDefaultItems = false; |
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| 54 | |||
| 55 | /** |
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| 56 | * @var bool |
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| 57 | */ |
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| 58 | private $disabled = false; |
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| 59 | |||
| 60 | /** |
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| 61 | * Whether or not to auto create keyboard shortcuts for items |
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| 62 | * when they contain square brackets. Eg: [M]y item |
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| 63 | * |
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| 64 | * @var bool |
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| 65 | */ |
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| 66 | private $autoShortcuts = true; |
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| 67 | |||
| 68 | /** |
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| 69 | * @var bool |
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| 70 | */ |
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| 71 | private $subMenu = false; |
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| 72 | |||
| 73 | public function __construct(Terminal $terminal = null) |
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| 74 | { |
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| 75 | $this->terminal = $terminal ?? TerminalFactory::fromSystem(); |
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| 76 | $this->style = new MenuStyle($this->terminal); |
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| 77 | $this->menu = new CliMenu(null, [], $this->terminal, $this->style); |
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| 78 | } |
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| 79 | |||
| 80 | public static function newSubMenu(Terminal $terminal) : self |
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| 81 | { |
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| 82 | $instance = new self($terminal); |
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| 83 | $instance->subMenu = true; |
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| 84 | |||
| 85 | return $instance; |
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| 86 | } |
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| 87 | |||
| 88 | public function setTitle(string $title) : self |
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| 89 | { |
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| 90 | $this->menu->setTitle($title); |
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| 91 | |||
| 92 | return $this; |
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| 93 | } |
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| 94 | |||
| 95 | public function addMenuItem(MenuItemInterface $item) : self |
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| 96 | { |
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| 97 | $this->menu->addItem($item); |
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| 98 | |||
| 99 | $this->processItemShortcut($item); |
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| 100 | |||
| 101 | return $this; |
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| 102 | } |
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| 103 | |||
| 104 | public function addItem( |
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| 105 | string $text, |
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| 106 | callable $itemCallable, |
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| 107 | bool $showItemExtra = false, |
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| 108 | bool $disabled = false |
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| 109 | ) : self { |
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| 110 | $this->addMenuItem(new SelectableItem($text, $itemCallable, $showItemExtra, $disabled)); |
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| 111 | |||
| 112 | return $this; |
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| 113 | } |
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| 114 | |||
| 115 | public function addItems(array $items) : self |
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| 116 | { |
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| 117 | foreach ($items as $item) { |
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| 118 | $this->addItem(...$item); |
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| 119 | } |
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| 120 | |||
| 121 | return $this; |
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| 122 | } |
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| 123 | |||
| 124 | public function addStaticItem(string $text) : self |
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| 125 | { |
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| 126 | $this->addMenuItem(new StaticItem($text)); |
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| 127 | |||
| 128 | return $this; |
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| 129 | } |
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| 130 | |||
| 131 | public function addLineBreak(string $breakChar = ' ', int $lines = 1) : self |
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| 132 | { |
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| 133 | $this->addMenuItem(new LineBreakItem($breakChar, $lines)); |
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| 134 | |||
| 135 | return $this; |
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| 136 | } |
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| 137 | |||
| 138 | public function addAsciiArt(string $art, string $position = AsciiArtItem::POSITION_CENTER, string $alt = '') : self |
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| 139 | { |
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| 140 | $this->addMenuItem(new AsciiArtItem($art, $position, $alt)); |
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| 141 | |||
| 142 | return $this; |
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| 143 | } |
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| 144 | |||
| 145 | public function addSubMenu(string $text, \Closure $callback) : self |
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| 146 | { |
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| 147 | $builder = self::newSubMenu($this->terminal); |
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| 148 | |||
| 149 | $callback = $callback->bindTo($builder); |
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| 150 | $callback($builder); |
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| 151 | |||
| 152 | $menu = $builder->build(); |
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| 153 | $menu->setParent($this->menu); |
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| 154 | |||
| 155 | //we apply the parent theme if nothing was changed |
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| 156 | //if no styles were changed in this sub-menu |
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| 157 | if (!$menu->getStyle()->hasChangedFromDefaults()) { |
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| 158 | $menu->setStyle($this->menu->getStyle()); |
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| 159 | } |
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| 160 | |||
| 161 | $this->menu->addItem($item = new MenuMenuItem( |
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| 162 | $text, |
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| 163 | $menu, |
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| 164 | $builder->isMenuDisabled() |
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| 165 | )); |
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| 166 | |||
| 167 | $this->processItemShortcut($item); |
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| 168 | |||
| 169 | return $this; |
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| 170 | } |
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| 171 | |||
| 172 | public function addSubMenuFromBuilder(string $text, CliMenuBuilder $builder) : self |
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| 173 | { |
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| 174 | $menu = $builder->build(); |
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| 175 | $menu->setParent($this->menu); |
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| 176 | |||
| 177 | //we apply the parent theme if nothing was changed |
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| 178 | //if no styles were changed in this sub-menu |
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| 179 | if (!$menu->getStyle()->hasChangedFromDefaults()) { |
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| 180 | $menu->setStyle($this->menu->getStyle()); |
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| 181 | } |
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| 182 | |||
| 183 | $this->menu->addItem($item = new MenuMenuItem( |
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| 184 | $text, |
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| 185 | $menu, |
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| 186 | $builder->isMenuDisabled() |
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| 187 | )); |
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| 188 | |||
| 189 | $this->processItemShortcut($item); |
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| 190 | |||
| 191 | return $this; |
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| 192 | } |
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| 193 | |||
| 194 | public function disableAutoShortcuts() : self |
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| 195 | { |
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| 196 | $this->autoShortcuts = false; |
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| 197 | |||
| 198 | return $this; |
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| 199 | } |
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| 200 | |||
| 201 | private function extractShortcut(string $title) : ?string |
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| 202 | { |
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| 203 | preg_match('/\[(.)\]/', $title, $match); |
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| 204 | return isset($match[1]) ? strtolower($match[1]) : null; |
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| 205 | } |
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| 206 | |||
| 207 | private function processItemShortcut(MenuItemInterface $item) : void |
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| 208 | { |
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| 209 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($item) { |
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| 210 | $menu->executeAsSelected($item); |
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| 211 | }); |
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| 212 | } |
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| 213 | |||
| 214 | private function processSplitItemShortcuts(SplitItem $splitItem) : void |
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| 215 | { |
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| 216 | foreach ($splitItem->getItems() as $item) { |
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| 217 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($splitItem, $item) { |
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| 218 | $current = $splitItem->getSelectedItemIndex(); |
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| 219 | |||
| 220 | $splitItem->setSelectedItemIndex( |
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| 221 | array_search($item, $splitItem->getItems(), true) |
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| 222 | ); |
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| 223 | |||
| 224 | $menu->executeAsSelected($splitItem); |
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| 225 | |||
| 226 | if ($current !== null) { |
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| 227 | $splitItem->setSelectedItemIndex($current); |
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| 228 | } |
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| 229 | }); |
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| 230 | } |
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| 231 | } |
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| 232 | |||
| 233 | private function processIndividualShortcut(MenuItemInterface $item, callable $callback) : void |
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| 234 | { |
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| 235 | if (!$this->autoShortcuts) { |
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| 236 | return; |
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| 237 | } |
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| 238 | |||
| 239 | if ($shortcut = $this->extractShortcut($item->getText())) { |
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| 240 | $this->menu->addCustomControlMapping( |
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| 241 | $shortcut, |
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| 242 | $callback |
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| 243 | ); |
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| 244 | } |
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| 245 | } |
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| 246 | |||
| 247 | public function addSplitItem(\Closure $callback) : self |
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| 248 | { |
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| 249 | $builder = new SplitItemBuilder($this->menu); |
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| 250 | |||
| 251 | $callback = $callback->bindTo($builder); |
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| 252 | $callback($builder); |
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| 253 | |||
| 254 | $this->menu->addItem($splitItem = $builder->build()); |
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| 255 | |||
| 256 | $this->processSplitItemShortcuts($splitItem); |
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| 257 | |||
| 258 | return $this; |
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| 259 | } |
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| 260 | |||
| 261 | /** |
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| 262 | * Disable a submenu |
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| 263 | * |
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| 264 | * @throws \InvalidArgumentException |
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| 265 | */ |
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| 266 | public function disableMenu() : self |
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| 267 | { |
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| 268 | if (!$this->subMenu) { |
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| 269 | throw new \InvalidArgumentException( |
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| 270 | 'You can\'t disable the root menu' |
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| 271 | ); |
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| 272 | } |
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| 273 | |||
| 274 | $this->disabled = true; |
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| 275 | |||
| 276 | return $this; |
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| 277 | } |
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| 278 | |||
| 279 | public function isMenuDisabled() : bool |
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| 280 | { |
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| 281 | return $this->disabled; |
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| 282 | } |
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| 283 | |||
| 284 | public function setGoBackButtonText(string $goBackButtonTest) : self |
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| 285 | { |
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| 286 | $this->goBackButtonText = $goBackButtonTest; |
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| 287 | |||
| 288 | return $this; |
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| 289 | } |
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| 290 | |||
| 291 | public function setExitButtonText(string $exitButtonText) : self |
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| 292 | { |
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| 293 | $this->exitButtonText = $exitButtonText; |
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| 294 | |||
| 295 | return $this; |
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| 296 | } |
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| 297 | |||
| 298 | public function setBackgroundColour(string $colour, string $fallback = null) : self |
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| 299 | { |
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| 300 | $this->style->setBg($colour, $fallback); |
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| 301 | |||
| 302 | return $this; |
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| 303 | } |
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| 304 | |||
| 305 | public function setForegroundColour(string $colour, string $fallback = null) : self |
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| 306 | { |
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| 307 | $this->style->setFg($colour, $fallback); |
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| 308 | |||
| 309 | return $this; |
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| 310 | } |
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| 311 | |||
| 312 | public function setWidth(int $width) : self |
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| 317 | } |
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| 318 | |||
| 319 | public function setPadding(int $topBottom, int $leftRight = null) : self |
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| 320 | { |
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| 321 | $this->style->setPadding($topBottom, $leftRight); |
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| 322 | |||
| 323 | return $this; |
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| 324 | } |
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| 325 | |||
| 326 | public function setPaddingTopBottom(int $topBottom) : self |
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| 327 | { |
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| 328 | $this->style->setPaddingTopBottom($topBottom); |
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| 329 | |||
| 330 | return $this; |
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| 331 | } |
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| 332 | |||
| 333 | public function setPaddingLeftRight(int $leftRight) : self |
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| 334 | { |
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| 335 | $this->style->setPaddingLeftRight($leftRight); |
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| 336 | |||
| 337 | return $this; |
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| 338 | } |
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| 339 | |||
| 340 | public function setMarginAuto() : self |
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| 341 | { |
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| 342 | $this->style->setMarginAuto(); |
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| 343 | |||
| 344 | return $this; |
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| 345 | } |
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| 346 | |||
| 347 | public function setMargin(int $margin) : self |
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| 348 | { |
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| 349 | $this->style->setMargin($margin); |
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| 350 | |||
| 351 | return $this; |
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| 352 | } |
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| 353 | |||
| 354 | public function setUnselectedMarker(string $marker) : self |
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| 355 | { |
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| 356 | $this->style->setUnselectedMarker($marker); |
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| 357 | |||
| 358 | return $this; |
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| 359 | } |
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| 360 | |||
| 361 | public function setSelectedMarker(string $marker) : self |
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| 362 | { |
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| 363 | $this->style->setSelectedMarker($marker); |
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| 364 | |||
| 365 | return $this; |
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| 366 | } |
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| 367 | |||
| 368 | public function setItemExtra(string $extra) : self |
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| 369 | { |
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| 370 | $this->style->setItemExtra($extra); |
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| 371 | |||
| 372 | return $this; |
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| 373 | } |
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| 374 | |||
| 375 | public function setTitleSeparator(string $separator) : self |
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| 380 | } |
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| 381 | |||
| 382 | public function setBorder(int $top, $right = null, $bottom = null, $left = null, string $colour = null) : self |
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| 383 | { |
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| 384 | $this->style->setBorder($top, $right, $bottom, $left, $colour); |
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| 385 | |||
| 386 | return $this; |
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| 387 | } |
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| 388 | |||
| 389 | public function setBorderTopWidth(int $width) : self |
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| 390 | { |
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| 391 | $this->style->setBorderTopWidth($width); |
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| 392 | |||
| 393 | return $this; |
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| 394 | } |
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| 395 | |||
| 396 | public function setBorderRightWidth(int $width) : self |
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| 401 | } |
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| 402 | |||
| 403 | public function setBorderBottomWidth(int $width) : self |
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| 404 | { |
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| 405 | $this->style->setBorderBottomWidth($width); |
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| 406 | |||
| 407 | return $this; |
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| 408 | } |
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| 409 | |||
| 410 | public function setBorderLeftWidth(int $width) : self |
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| 411 | { |
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| 412 | $this->style->setBorderLeftWidth($width); |
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| 413 | |||
| 414 | return $this; |
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| 415 | } |
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| 416 | |||
| 417 | public function setBorderColour(string $colour, $fallback = null) : self |
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| 422 | } |
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| 423 | |||
| 424 | public function getStyle() : MenuStyle |
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| 425 | { |
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| 426 | return $this->style; |
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| 427 | } |
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| 428 | |||
| 429 | public function getTerminal() : Terminal |
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| 430 | { |
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| 431 | return $this->terminal; |
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| 432 | } |
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| 433 | |||
| 434 | private function getDefaultItems() : array |
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| 435 | { |
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| 436 | $actions = []; |
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| 437 | if ($this->subMenu) { |
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| 438 | $actions[] = new SelectableItem($this->goBackButtonText, new GoBackAction); |
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| 439 | } |
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| 440 | |||
| 441 | $actions[] = new SelectableItem($this->exitButtonText, new ExitAction); |
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| 442 | return $actions; |
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| 443 | } |
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| 444 | |||
| 445 | public function disableDefaultItems() : self |
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| 450 | } |
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| 451 | |||
| 452 | private function itemsHaveExtra(array $items) : bool |
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| 453 | { |
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| 454 | return !empty(array_filter($items, function (MenuItemInterface $item) { |
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| 455 | return $item->showsItemExtra(); |
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| 456 | })); |
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| 457 | } |
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| 458 | |||
| 459 | public function build() : CliMenu |
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| 460 | { |
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| 461 | if (!$this->disableDefaultItems) { |
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| 462 | $this->menu->addItems($this->getDefaultItems()); |
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| 463 | } |
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| 464 | |||
| 465 | $this->style->setDisplaysExtra($this->itemsHaveExtra($this->menu->getItems())); |
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| 466 | |||
| 467 | return $this->menu; |
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| 468 | } |
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| 469 | } |
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| 470 |
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This check compares calls to functions or methods with their respective definitions. If the call has less arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.