php-school /
cli-menu
| Total Complexity | 59 |
| Total Lines | 466 |
| 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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| 24 | class CliMenuBuilder |
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| 25 | { |
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| 26 | /** |
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| 27 | * @var CliMenu |
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| 28 | */ |
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| 29 | private $menu; |
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| 30 | |||
| 31 | /** |
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| 32 | * @var string |
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| 33 | */ |
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| 34 | private $goBackButtonText = 'Go Back'; |
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| 35 | |||
| 36 | /** |
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| 37 | * @var string |
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| 38 | */ |
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| 39 | private $exitButtonText = 'Exit'; |
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| 40 | |||
| 41 | /** |
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| 42 | * @var MenuStyle |
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| 43 | */ |
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| 44 | private $style; |
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| 45 | |||
| 46 | /** |
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| 47 | * @var Terminal |
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| 48 | */ |
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| 49 | private $terminal; |
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| 50 | |||
| 51 | /** |
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| 52 | * @var bool |
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| 53 | */ |
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| 54 | private $disableDefaultItems = false; |
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| 55 | |||
| 56 | /** |
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| 57 | * @var bool |
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| 58 | */ |
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| 59 | private $disabled = false; |
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| 60 | |||
| 61 | /** |
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| 62 | * Whether or not to auto create keyboard shortcuts for items |
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| 63 | * when they contain square brackets. Eg: [M]y item |
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| 64 | * |
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| 65 | * @var bool |
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| 66 | */ |
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| 67 | private $autoShortcuts = false; |
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| 68 | |||
| 69 | /** |
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| 70 | * Regex to auto match for shortcuts defaults to looking |
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| 71 | * for a single character encased in square brackets |
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| 72 | * |
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| 73 | * @var string |
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| 74 | */ |
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| 75 | private $autoShortcutsRegex = '/\[(.)\]/'; |
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| 76 | |||
| 77 | /** |
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| 78 | * @var bool |
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| 79 | */ |
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| 80 | private $subMenu = false; |
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| 81 | |||
| 82 | public function __construct(Terminal $terminal = null) |
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| 83 | { |
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| 84 | $this->terminal = $terminal ?? TerminalFactory::fromSystem(); |
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| 85 | $this->style = new MenuStyle($this->terminal); |
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| 86 | $this->menu = new CliMenu(null, [], $this->terminal, $this->style); |
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| 87 | } |
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| 88 | |||
| 89 | public static function newSubMenu(Terminal $terminal) : self |
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| 90 | { |
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| 91 | $instance = new self($terminal); |
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| 92 | $instance->subMenu = true; |
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| 93 | |||
| 94 | return $instance; |
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| 95 | } |
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| 96 | |||
| 97 | public function setTitle(string $title) : self |
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| 98 | { |
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| 99 | $this->menu->setTitle($title); |
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| 100 | |||
| 101 | return $this; |
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| 102 | } |
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| 103 | |||
| 104 | public function addMenuItem(MenuItemInterface $item) : self |
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| 105 | { |
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| 106 | $this->menu->addItem($item); |
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| 107 | |||
| 108 | $this->processItemShortcut($item); |
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| 109 | |||
| 110 | return $this; |
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| 111 | } |
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| 112 | |||
| 113 | public function addItem( |
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| 114 | string $text, |
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| 115 | callable $itemCallable, |
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| 116 | bool $showItemExtra = false, |
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| 117 | bool $disabled = false |
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| 118 | ) : self { |
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| 119 | $this->addMenuItem(new SelectableItem($text, $itemCallable, $showItemExtra, $disabled)); |
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| 120 | |||
| 121 | return $this; |
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| 122 | } |
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| 123 | |||
| 124 | public function addItems(array $items) : self |
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| 125 | { |
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| 126 | foreach ($items as $item) { |
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| 127 | $this->addItem(...$item); |
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| 128 | } |
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| 129 | |||
| 130 | return $this; |
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| 131 | } |
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| 132 | |||
| 133 | public function addStaticItem(string $text) : self |
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| 134 | { |
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| 135 | $this->addMenuItem(new StaticItem($text)); |
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| 136 | |||
| 137 | return $this; |
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| 138 | } |
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| 139 | |||
| 140 | public function addLineBreak(string $breakChar = ' ', int $lines = 1) : self |
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| 141 | { |
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| 142 | $this->addMenuItem(new LineBreakItem($breakChar, $lines)); |
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| 143 | |||
| 144 | return $this; |
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| 145 | } |
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| 146 | |||
| 147 | public function addAsciiArt(string $art, string $position = AsciiArtItem::POSITION_CENTER, string $alt = '') : self |
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| 148 | { |
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| 149 | $this->addMenuItem(new AsciiArtItem($art, $position, $alt)); |
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| 150 | |||
| 151 | return $this; |
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| 152 | } |
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| 153 | |||
| 154 | public function addSubMenu(string $text, \Closure $callback) : self |
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| 155 | { |
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| 156 | $builder = self::newSubMenu($this->terminal); |
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| 157 | |||
| 158 | $callback = $callback->bindTo($builder); |
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| 159 | $callback($builder); |
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| 160 | |||
| 161 | $menu = $builder->build(); |
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| 162 | $menu->setParent($this->menu); |
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| 163 | |||
| 164 | //we apply the parent theme if nothing was changed |
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| 165 | //if no styles were changed in this sub-menu |
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| 166 | if (!$menu->getStyle()->hasChangedFromDefaults()) { |
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| 167 | $menu->setStyle($this->menu->getStyle()); |
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| 168 | } |
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| 169 | |||
| 170 | $this->menu->addItem($item = new MenuMenuItem( |
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| 171 | $text, |
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| 172 | $menu, |
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| 173 | $builder->isMenuDisabled() |
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| 174 | )); |
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| 175 | |||
| 176 | $this->processItemShortcut($item); |
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| 177 | |||
| 178 | return $this; |
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| 179 | } |
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| 180 | |||
| 181 | public function addSubMenuFromBuilder(string $text, CliMenuBuilder $builder) : self |
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| 182 | { |
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| 183 | $menu = $builder->build(); |
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| 184 | $menu->setParent($this->menu); |
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| 185 | |||
| 186 | //we apply the parent theme if nothing was changed |
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| 187 | //if no styles were changed in this sub-menu |
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| 188 | if (!$menu->getStyle()->hasChangedFromDefaults()) { |
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| 189 | $menu->setStyle($this->menu->getStyle()); |
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| 190 | } |
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| 191 | |||
| 192 | $this->menu->addItem($item = new MenuMenuItem( |
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| 193 | $text, |
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| 194 | $menu, |
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| 195 | $builder->isMenuDisabled() |
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| 196 | )); |
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| 197 | |||
| 198 | $this->processItemShortcut($item); |
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| 199 | |||
| 200 | return $this; |
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| 201 | } |
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| 202 | |||
| 203 | public function enableAutoShortcuts(string $regex = null) : self |
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| 204 | { |
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| 205 | $this->autoShortcuts = true; |
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| 206 | |||
| 207 | if (null !== $regex) { |
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| 208 | $this->autoShortcutsRegex = $regex; |
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| 209 | } |
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| 210 | |||
| 211 | return $this; |
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| 212 | } |
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| 213 | |||
| 214 | private function extractShortcut(string $title) : ?string |
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| 215 | { |
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| 216 | preg_match($this->autoShortcutsRegex, $title, $match); |
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| 217 | |||
| 218 | if (!isset($match[1])) { |
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| 219 | return null; |
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| 220 | } |
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| 221 | |||
| 222 | if (mb_strlen($match[1]) > 1) { |
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| 223 | throw InvalidShortcutException::fromShortcut($match[1]); |
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| 224 | } |
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| 225 | |||
| 226 | return isset($match[1]) ? strtolower($match[1]) : null; |
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| 227 | } |
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| 228 | |||
| 229 | private function processItemShortcut(MenuItemInterface $item) : void |
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| 230 | { |
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| 231 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($item) { |
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| 232 | $menu->executeAsSelected($item); |
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| 233 | }); |
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| 234 | } |
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| 235 | |||
| 236 | private function processSplitItemShortcuts(SplitItem $splitItem) : void |
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| 237 | { |
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| 238 | foreach ($splitItem->getItems() as $item) { |
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| 239 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($splitItem, $item) { |
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| 240 | $current = $splitItem->getSelectedItemIndex(); |
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| 241 | |||
| 242 | $splitItem->setSelectedItemIndex( |
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| 243 | array_search($item, $splitItem->getItems(), true) |
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| 244 | ); |
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| 245 | |||
| 246 | $menu->executeAsSelected($splitItem); |
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| 247 | |||
| 248 | if ($current !== null) { |
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| 249 | $splitItem->setSelectedItemIndex($current); |
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| 250 | } |
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| 251 | }); |
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| 252 | } |
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| 253 | } |
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| 254 | |||
| 255 | private function processIndividualShortcut(MenuItemInterface $item, callable $callback) : void |
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| 256 | { |
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| 257 | if (!$this->autoShortcuts) { |
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| 258 | return; |
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| 259 | } |
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| 260 | |||
| 261 | if ($shortcut = $this->extractShortcut($item->getText())) { |
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| 262 | $this->menu->addCustomControlMapping( |
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| 263 | $shortcut, |
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| 264 | $callback |
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| 265 | ); |
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| 266 | } |
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| 267 | } |
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| 268 | |||
| 269 | public function addSplitItem(\Closure $callback) : self |
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| 270 | { |
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| 271 | $builder = new SplitItemBuilder($this->menu); |
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| 272 | |||
| 273 | $callback = $callback->bindTo($builder); |
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| 274 | $callback($builder); |
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| 275 | |||
| 276 | $this->menu->addItem($splitItem = $builder->build()); |
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| 277 | |||
| 278 | $this->processSplitItemShortcuts($splitItem); |
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| 279 | |||
| 280 | return $this; |
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| 281 | } |
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| 282 | |||
| 283 | /** |
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| 284 | * Disable a submenu |
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| 285 | * |
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| 286 | * @throws \InvalidArgumentException |
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| 287 | */ |
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| 288 | public function disableMenu() : self |
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| 289 | { |
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| 290 | if (!$this->subMenu) { |
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| 291 | throw new \InvalidArgumentException( |
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| 292 | 'You can\'t disable the root menu' |
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| 293 | ); |
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| 294 | } |
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| 295 | |||
| 296 | $this->disabled = true; |
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| 297 | |||
| 298 | return $this; |
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| 299 | } |
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| 300 | |||
| 301 | public function isMenuDisabled() : bool |
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| 302 | { |
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| 303 | return $this->disabled; |
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| 304 | } |
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| 305 | |||
| 306 | public function setGoBackButtonText(string $goBackButtonTest) : self |
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| 307 | { |
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| 308 | $this->goBackButtonText = $goBackButtonTest; |
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| 309 | |||
| 310 | return $this; |
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| 311 | } |
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| 312 | |||
| 313 | public function setExitButtonText(string $exitButtonText) : self |
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| 314 | { |
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| 315 | $this->exitButtonText = $exitButtonText; |
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| 316 | |||
| 317 | return $this; |
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| 318 | } |
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| 319 | |||
| 320 | public function setBackgroundColour(string $colour, string $fallback = null) : self |
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| 321 | { |
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| 322 | $this->style->setBg($colour, $fallback); |
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| 323 | |||
| 324 | return $this; |
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| 325 | } |
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| 326 | |||
| 327 | public function setForegroundColour(string $colour, string $fallback = null) : self |
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| 328 | { |
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| 329 | $this->style->setFg($colour, $fallback); |
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| 330 | |||
| 331 | return $this; |
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| 332 | } |
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| 333 | |||
| 334 | public function setWidth(int $width) : self |
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| 339 | } |
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| 340 | |||
| 341 | public function setPadding(int $topBottom, int $leftRight = null) : self |
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| 342 | { |
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| 343 | $this->style->setPadding($topBottom, $leftRight); |
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| 344 | |||
| 345 | return $this; |
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| 346 | } |
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| 347 | |||
| 348 | public function setPaddingTopBottom(int $topBottom) : self |
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| 349 | { |
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| 350 | $this->style->setPaddingTopBottom($topBottom); |
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| 351 | |||
| 352 | return $this; |
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| 353 | } |
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| 354 | |||
| 355 | public function setPaddingLeftRight(int $leftRight) : self |
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| 356 | { |
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| 357 | $this->style->setPaddingLeftRight($leftRight); |
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| 358 | |||
| 359 | return $this; |
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| 360 | } |
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| 361 | |||
| 362 | public function setMarginAuto() : self |
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| 363 | { |
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| 364 | $this->style->setMarginAuto(); |
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| 365 | |||
| 366 | return $this; |
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| 367 | } |
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| 368 | |||
| 369 | public function setMargin(int $margin) : self |
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| 370 | { |
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| 371 | $this->style->setMargin($margin); |
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| 372 | |||
| 373 | return $this; |
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| 374 | } |
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| 375 | |||
| 376 | public function setUnselectedMarker(string $marker) : self |
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| 377 | { |
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| 378 | $this->style->setUnselectedMarker($marker); |
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| 379 | |||
| 380 | return $this; |
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| 381 | } |
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| 382 | |||
| 383 | public function setSelectedMarker(string $marker) : self |
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| 384 | { |
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| 385 | $this->style->setSelectedMarker($marker); |
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| 386 | |||
| 387 | return $this; |
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| 388 | } |
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| 389 | |||
| 390 | public function setItemExtra(string $extra) : self |
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| 391 | { |
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| 392 | $this->style->setItemExtra($extra); |
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| 393 | |||
| 394 | return $this; |
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| 395 | } |
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| 396 | |||
| 397 | public function setTitleSeparator(string $separator) : self |
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| 402 | } |
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| 403 | |||
| 404 | public function setBorder(int $top, $right = null, $bottom = null, $left = null, string $colour = null) : self |
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| 405 | { |
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| 406 | $this->style->setBorder($top, $right, $bottom, $left, $colour); |
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| 407 | |||
| 408 | return $this; |
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| 409 | } |
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| 410 | |||
| 411 | public function setBorderTopWidth(int $width) : self |
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| 412 | { |
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| 413 | $this->style->setBorderTopWidth($width); |
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| 414 | |||
| 415 | return $this; |
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| 416 | } |
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| 417 | |||
| 418 | public function setBorderRightWidth(int $width) : self |
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| 423 | } |
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| 424 | |||
| 425 | public function setBorderBottomWidth(int $width) : self |
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| 426 | { |
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| 427 | $this->style->setBorderBottomWidth($width); |
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| 428 | |||
| 429 | return $this; |
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| 430 | } |
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| 431 | |||
| 432 | public function setBorderLeftWidth(int $width) : self |
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| 433 | { |
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| 434 | $this->style->setBorderLeftWidth($width); |
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| 435 | |||
| 436 | return $this; |
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| 437 | } |
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| 438 | |||
| 439 | public function setBorderColour(string $colour, $fallback = null) : self |
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| 444 | } |
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| 445 | |||
| 446 | public function getStyle() : MenuStyle |
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| 447 | { |
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| 448 | return $this->style; |
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| 449 | } |
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| 450 | |||
| 451 | public function getTerminal() : Terminal |
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| 452 | { |
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| 453 | return $this->terminal; |
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| 454 | } |
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| 455 | |||
| 456 | private function getDefaultItems() : array |
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| 457 | { |
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| 458 | $actions = []; |
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| 459 | if ($this->subMenu) { |
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| 460 | $actions[] = new SelectableItem($this->goBackButtonText, new GoBackAction); |
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| 461 | } |
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| 462 | |||
| 463 | $actions[] = new SelectableItem($this->exitButtonText, new ExitAction); |
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| 464 | return $actions; |
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| 465 | } |
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| 466 | |||
| 467 | public function disableDefaultItems() : self |
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| 472 | } |
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| 473 | |||
| 474 | private function itemsHaveExtra(array $items) : bool |
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| 475 | { |
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| 476 | return !empty(array_filter($items, function (MenuItemInterface $item) { |
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| 477 | return $item->showsItemExtra(); |
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| 478 | })); |
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| 479 | } |
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| 480 | |||
| 481 | public function build() : CliMenu |
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| 482 | { |
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| 483 | if (!$this->disableDefaultItems) { |
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| 484 | $this->menu->addItems($this->getDefaultItems()); |
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| 485 | } |
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| 486 | |||
| 487 | $this->style->setDisplaysExtra($this->itemsHaveExtra($this->menu->getItems())); |
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| 488 | |||
| 490 | } |
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| 491 | } |
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| 492 |
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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.