php-school /
cli-menu
| Total Complexity | 74 |
| Total Lines | 596 |
| Duplicated Lines | 0 % |
| Changes | 7 | ||
| Bugs | 0 | Features | 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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| 32 | class CliMenuBuilder |
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| 33 | { |
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| 34 | /** |
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| 35 | * @var CliMenu |
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| 36 | */ |
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| 37 | private $menu; |
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| 38 | |||
| 39 | /** |
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| 40 | * @var string |
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| 41 | */ |
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| 42 | private $goBackButtonText = 'Go Back'; |
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| 43 | |||
| 44 | /** |
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| 45 | * @var string |
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| 46 | */ |
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| 47 | private $exitButtonText = 'Exit'; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var MenuStyle |
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| 51 | */ |
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| 52 | private $style; |
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| 53 | |||
| 54 | /** |
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| 55 | * @var Terminal |
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| 56 | */ |
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| 57 | private $terminal; |
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| 58 | |||
| 59 | /** |
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| 60 | * @var bool |
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| 61 | */ |
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| 62 | private $disableDefaultItems = false; |
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| 63 | |||
| 64 | /** |
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| 65 | * @var bool |
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| 66 | */ |
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| 67 | private $disabled = false; |
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| 68 | |||
| 69 | /** |
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| 70 | * Whether or not to auto create keyboard shortcuts for items |
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| 71 | * when they contain square brackets. Eg: [M]y item |
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| 72 | * |
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| 73 | * @var bool |
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| 74 | */ |
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| 75 | private $autoShortcuts = false; |
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| 76 | |||
| 77 | /** |
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| 78 | * Regex to auto match for shortcuts defaults to looking |
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| 79 | * for a single character encased in square brackets |
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| 80 | * |
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| 81 | * @var string |
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| 82 | */ |
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| 83 | private $autoShortcutsRegex = '/\[(.)\]/'; |
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| 84 | |||
| 85 | /** |
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| 86 | * @var bool |
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| 87 | */ |
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| 88 | private $subMenu = false; |
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| 89 | |||
| 90 | public function __construct(Terminal $terminal = null) |
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| 91 | { |
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| 92 | $this->terminal = $terminal ?? TerminalFactory::fromSystem(); |
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| 93 | $this->style = new MenuStyle($this->terminal); |
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| 94 | $this->menu = new CliMenu(null, [], $this->terminal, $this->style); |
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| 95 | } |
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| 96 | |||
| 97 | public static function newSubMenu(Terminal $terminal) : self |
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| 98 | { |
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| 99 | $instance = new self($terminal); |
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| 100 | $instance->subMenu = true; |
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| 101 | |||
| 102 | return $instance; |
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| 103 | } |
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| 104 | |||
| 105 | public function setTitle(string $title) : self |
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| 106 | { |
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| 107 | $this->menu->setTitle($title); |
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| 108 | |||
| 109 | return $this; |
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| 110 | } |
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| 111 | |||
| 112 | public function addMenuItem(MenuItemInterface $item) : self |
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| 113 | { |
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| 114 | $this->menu->addItem($item); |
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| 115 | |||
| 116 | $this->processItemShortcut($item); |
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| 117 | |||
| 118 | return $this; |
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| 119 | } |
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| 120 | |||
| 121 | public function addItem( |
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| 122 | string $text, |
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| 123 | callable $itemCallable, |
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| 124 | bool $showItemExtra = false, |
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| 125 | bool $disabled = false |
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| 126 | ) : self { |
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| 127 | $item = (new SelectableItem($text, $itemCallable, $showItemExtra, $disabled)) |
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| 128 | ->setStyle($this->menu->getSelectableStyle()); |
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| 129 | |||
| 130 | $this->addMenuItem($item); |
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| 131 | |||
| 132 | return $this; |
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| 133 | } |
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| 134 | |||
| 135 | public function addItems(array $items) : self |
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| 136 | { |
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| 137 | foreach ($items as $item) { |
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| 138 | $this->addItem(...$item); |
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|
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| 139 | } |
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| 140 | |||
| 141 | return $this; |
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| 142 | } |
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| 143 | |||
| 144 | public function addCheckableItem( |
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| 145 | string $text, |
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| 146 | callable $itemCallable, |
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| 147 | bool $showItemExtra = false, |
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| 148 | bool $disabled = false |
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| 149 | ) : self { |
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| 150 | $item = (new CheckableItem($text, $itemCallable, $showItemExtra, $disabled)) |
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| 151 | ->setStyle($this->menu->getCheckableStyle()); |
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| 152 | |||
| 153 | $this->addMenuItem($item); |
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| 154 | |||
| 155 | return $this; |
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| 156 | } |
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| 157 | |||
| 158 | public function addRadioItem( |
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| 159 | string $text, |
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| 160 | callable $itemCallable, |
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| 161 | bool $showItemExtra = false, |
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| 162 | bool $disabled = false |
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| 163 | ) : self { |
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| 164 | $item = (new RadioItem($text, $itemCallable, $showItemExtra, $disabled)) |
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| 165 | ->setStyle($this->menu->getRadioStyle()); |
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| 166 | |||
| 167 | $this->addMenuItem($item); |
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| 168 | |||
| 169 | return $this; |
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| 170 | } |
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| 171 | |||
| 172 | public function addStaticItem(string $text) : self |
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| 173 | { |
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| 174 | $this->addMenuItem(new StaticItem($text)); |
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| 175 | |||
| 176 | return $this; |
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| 177 | } |
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| 178 | |||
| 179 | public function addLineBreak(string $breakChar = ' ', int $lines = 1) : self |
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| 180 | { |
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| 181 | $this->addMenuItem(new LineBreakItem($breakChar, $lines)); |
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| 182 | |||
| 183 | return $this; |
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| 184 | } |
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| 185 | |||
| 186 | public function addAsciiArt(string $art, string $position = AsciiArtItem::POSITION_CENTER, string $alt = '') : self |
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| 187 | { |
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| 188 | $this->addMenuItem(new AsciiArtItem($art, $position, $alt)); |
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| 189 | |||
| 190 | return $this; |
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| 191 | } |
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| 192 | |||
| 193 | public function addSubMenu(string $text, Closure $callback) : self |
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| 194 | { |
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| 195 | $builder = self::newSubMenu($this->terminal); |
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| 196 | |||
| 197 | if ($this->autoShortcuts) { |
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| 198 | $builder->enableAutoShortcuts($this->autoShortcutsRegex); |
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| 199 | } |
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| 200 | |||
| 201 | $callback($builder); |
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| 202 | |||
| 203 | $menu = $this->createMenuClosure($builder); |
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| 204 | |||
| 205 | $item = (new MenuMenuItem($text, $menu, $builder->isMenuDisabled())) |
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| 206 | ->setStyle($this->menu->getSelectableStyle()); |
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| 207 | |||
| 208 | $this->menu->addItem($item); |
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| 209 | |||
| 210 | $this->processItemShortcut($item); |
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| 211 | |||
| 212 | return $this; |
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| 213 | } |
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| 214 | |||
| 215 | public function addSubMenuFromBuilder(string $text, CliMenuBuilder $builder) : self |
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| 216 | { |
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| 217 | $menu = $this->createMenuClosure($builder); |
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| 218 | |||
| 219 | $item = (new MenuMenuItem($text, $menu, $builder->isMenuDisabled())) |
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| 220 | ->setStyle($this->menu->getSelectableStyle()); |
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| 221 | |||
| 222 | $this->menu->addItem($item); |
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| 223 | |||
| 224 | $this->processItemShortcut($item); |
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| 225 | |||
| 226 | return $this; |
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| 227 | } |
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| 228 | |||
| 229 | /** |
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| 230 | * Create the submenu as a closure which is then unpacked in MenuMenuItem::showSubMenu |
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| 231 | * This allows us to wait until all user-provided styles are parsed and apply them to nested items |
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| 232 | * |
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| 233 | * @param CliMenuBuilder|SplitItemBuilder $builder |
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| 234 | * @return Closure |
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| 235 | */ |
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| 236 | protected function createMenuClosure($builder) : Closure |
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| 237 | { |
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| 238 | return function () use ($builder) { |
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| 239 | $menu = $builder->build(); |
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| 240 | |||
| 241 | $menu->setParent($this->menu); |
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| 242 | |||
| 243 | // we apply the parent theme if nothing was changed |
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| 244 | // if no styles were changed in this sub-menu |
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| 245 | if (!$menu->getStyle()->hasChangedFromDefaults()) { |
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| 246 | $menu->setStyle($this->menu->getStyle()); |
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| 247 | } |
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| 248 | |||
| 249 | $menu->setCheckableStyle(function (CheckableStyle $style) { |
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| 250 | $style->fromArray($this->menu->getCheckableStyle()->toArray()); |
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| 251 | }); |
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| 252 | |||
| 253 | $menu->setRadioStyle(function (RadioStyle $style) { |
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| 254 | $style->fromArray($this->menu->getRadioStyle()->toArray()); |
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| 255 | }); |
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| 256 | |||
| 257 | $menu->setSelectableStyle(function (SelectableStyle $style) { |
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| 258 | $style->fromArray($this->menu->getSelectableStyle()->toArray()); |
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| 259 | }); |
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| 260 | |||
| 261 | // This will be filled with user-provided items |
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| 262 | foreach ($menu->getItems() as $item) { |
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| 263 | // Only set style for compatible items |
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| 264 | if (!$item instanceof ItemStyleInterface) { |
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| 265 | continue; |
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| 266 | } |
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| 267 | |||
| 268 | // If item has a custom style, skip overriding |
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| 269 | if ($item->getStyle()->getIsCustom()) { |
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| 270 | continue; |
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| 271 | } |
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| 272 | |||
| 273 | if ($item instanceof CheckableStyle) { |
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| 274 | $item->setStyle(clone $menu->getCheckableStyle()); |
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| 275 | } |
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| 276 | |||
| 277 | if ($item instanceof RadioStyle) { |
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| 278 | $item->setStyle(clone $menu->getRadioStyle()); |
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| 279 | } |
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| 280 | |||
| 281 | if ($item instanceof SelectableInterface) { |
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| 282 | $item->setStyle(clone $menu->getSelectableStyle()); |
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| 283 | } |
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| 284 | } |
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| 285 | |||
| 286 | return $menu; |
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| 287 | }; |
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| 288 | } |
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| 289 | |||
| 290 | public function enableAutoShortcuts(string $regex = null) : self |
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| 291 | { |
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| 292 | $this->autoShortcuts = true; |
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| 293 | |||
| 294 | if (null !== $regex) { |
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| 295 | $this->autoShortcutsRegex = $regex; |
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| 296 | } |
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| 297 | |||
| 298 | return $this; |
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| 299 | } |
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| 300 | |||
| 301 | private function extractShortcut(string $title) : ?string |
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| 302 | { |
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| 303 | preg_match($this->autoShortcutsRegex, $title, $match); |
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| 304 | |||
| 305 | if (!isset($match[1])) { |
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| 306 | return null; |
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| 307 | } |
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| 308 | |||
| 309 | if (mb_strlen($match[1]) > 1) { |
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| 310 | throw InvalidShortcutException::fromShortcut($match[1]); |
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| 311 | } |
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| 312 | |||
| 313 | return isset($match[1]) ? strtolower($match[1]) : null; |
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| 314 | } |
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| 315 | |||
| 316 | private function processItemShortcut(MenuItemInterface $item) : void |
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| 317 | { |
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| 318 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($item) { |
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| 319 | $menu->executeAsSelected($item); |
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| 320 | }); |
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| 321 | } |
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| 322 | |||
| 323 | private function processSplitItemShortcuts(SplitItem $splitItem) : void |
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| 324 | { |
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| 325 | foreach ($splitItem->getItems() as $item) { |
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| 326 | $this->processIndividualShortcut($item, function (CliMenu $menu) use ($splitItem, $item) { |
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| 327 | $current = $splitItem->getSelectedItemIndex(); |
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| 328 | |||
| 329 | $splitItem->setSelectedItemIndex( |
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| 330 | array_search($item, $splitItem->getItems(), true) |
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| 331 | ); |
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| 332 | |||
| 333 | $menu->executeAsSelected($splitItem); |
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| 334 | |||
| 335 | if ($current !== null) { |
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| 336 | $splitItem->setSelectedItemIndex($current); |
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| 337 | } |
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| 338 | }); |
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| 339 | } |
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| 340 | } |
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| 341 | |||
| 342 | private function processIndividualShortcut(MenuItemInterface $item, callable $callback) : void |
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| 343 | { |
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| 344 | if (!$this->autoShortcuts) { |
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| 345 | return; |
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| 346 | } |
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| 347 | |||
| 348 | if ($shortcut = $this->extractShortcut($item->getText())) { |
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| 349 | $this->menu->addCustomControlMapping( |
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| 350 | $shortcut, |
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| 351 | $callback |
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| 352 | ); |
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| 353 | } |
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| 354 | } |
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| 355 | |||
| 356 | public function addSplitItem(Closure $callback) : self |
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| 357 | { |
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| 358 | $builder = new SplitItemBuilder($this->menu); |
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| 359 | |||
| 360 | if ($this->autoShortcuts) { |
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| 361 | $builder->enableAutoShortcuts($this->autoShortcutsRegex); |
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| 362 | } |
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| 363 | |||
| 364 | $builder->setCheckableStyle(function (CheckableStyle $style) { |
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| 365 | $style->fromArray($this->menu->getCheckableStyle()->toArray()); |
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| 366 | }); |
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| 367 | |||
| 368 | $builder->setRadioStyle(function (RadioStyle $style) { |
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| 369 | $style->fromArray($this->menu->getRadioStyle()->toArray()); |
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| 370 | }); |
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| 371 | |||
| 372 | $builder->setSelectableStyle(function (SelectableStyle $style) { |
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| 373 | $style->fromArray($this->menu->getSelectableStyle()->toArray()); |
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| 374 | }); |
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| 375 | |||
| 376 | $callback($builder); |
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| 377 | |||
| 378 | $this->menu->addItem($splitItem = $builder->build()); |
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| 379 | |||
| 380 | $this->processSplitItemShortcuts($splitItem); |
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| 381 | |||
| 382 | return $this; |
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| 383 | } |
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| 384 | |||
| 385 | /** |
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| 386 | * Disable a submenu |
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| 387 | * |
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| 388 | * @throws \InvalidArgumentException |
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| 389 | */ |
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| 390 | public function disableMenu() : self |
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| 391 | { |
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| 392 | if (!$this->subMenu) { |
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| 393 | throw new \InvalidArgumentException( |
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| 394 | 'You can\'t disable the root menu' |
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| 395 | ); |
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| 396 | } |
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| 397 | |||
| 398 | $this->disabled = true; |
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| 399 | |||
| 400 | return $this; |
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| 401 | } |
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| 402 | |||
| 403 | public function isMenuDisabled() : bool |
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| 404 | { |
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| 405 | return $this->disabled; |
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| 406 | } |
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| 407 | |||
| 408 | public function setGoBackButtonText(string $goBackButtonTest) : self |
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| 409 | { |
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| 410 | $this->goBackButtonText = $goBackButtonTest; |
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| 411 | |||
| 412 | return $this; |
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| 413 | } |
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| 414 | |||
| 415 | public function setExitButtonText(string $exitButtonText) : self |
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| 416 | { |
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| 417 | $this->exitButtonText = $exitButtonText; |
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| 418 | |||
| 419 | return $this; |
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| 420 | } |
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| 421 | |||
| 422 | public function setBackgroundColour(string $colour, string $fallback = null) : self |
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| 423 | { |
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| 424 | $this->style->setBg($colour, $fallback); |
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| 425 | |||
| 426 | return $this; |
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| 427 | } |
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| 428 | |||
| 429 | public function setForegroundColour(string $colour, string $fallback = null) : self |
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| 430 | { |
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| 431 | $this->style->setFg($colour, $fallback); |
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| 432 | |||
| 433 | return $this; |
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| 434 | } |
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| 435 | |||
| 436 | public function setWidth(int $width) : self |
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| 437 | { |
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| 438 | $this->style->setWidth($width); |
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| 439 | |||
| 440 | return $this; |
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| 441 | } |
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| 442 | |||
| 443 | public function setPadding(int $topBottom, int $leftRight = null) : self |
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| 444 | { |
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| 445 | $this->style->setPadding($topBottom, $leftRight); |
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| 446 | |||
| 447 | return $this; |
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| 448 | } |
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| 449 | |||
| 450 | public function setPaddingTopBottom(int $topBottom) : self |
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| 451 | { |
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| 452 | $this->style->setPaddingTopBottom($topBottom); |
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| 453 | |||
| 454 | return $this; |
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| 455 | } |
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| 456 | |||
| 457 | public function setPaddingLeftRight(int $leftRight) : self |
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| 458 | { |
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| 459 | $this->style->setPaddingLeftRight($leftRight); |
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| 460 | |||
| 461 | return $this; |
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| 462 | } |
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| 463 | |||
| 464 | public function setMarginAuto() : self |
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| 465 | { |
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| 466 | $this->style->setMarginAuto(); |
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| 467 | |||
| 468 | return $this; |
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| 469 | } |
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| 470 | |||
| 471 | public function setMargin(int $margin) : self |
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| 472 | { |
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| 473 | $this->style->setMargin($margin); |
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| 474 | |||
| 475 | return $this; |
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| 476 | } |
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| 477 | |||
| 478 | public function setUnselectedMarker(string $marker) : self |
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| 479 | { |
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| 480 | $this->style->setUnselectedMarker($marker); |
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| 481 | |||
| 482 | return $this; |
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| 483 | } |
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| 484 | |||
| 485 | public function setSelectedMarker(string $marker) : self |
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| 486 | { |
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| 487 | $this->style->setSelectedMarker($marker); |
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| 488 | |||
| 489 | return $this; |
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| 490 | } |
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| 491 | |||
| 492 | public function setItemExtra(string $extra) : self |
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| 493 | { |
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| 494 | $this->style->setItemExtra($extra); |
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| 495 | |||
| 496 | //if we customise item extra, it means we most likely want to display it |
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| 497 | $this->displayExtra(); |
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| 498 | |||
| 499 | return $this; |
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| 500 | } |
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| 501 | |||
| 502 | public function setTitleSeparator(string $separator) : self |
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| 507 | } |
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| 508 | |||
| 509 | public function setBorder(int $top, $right = null, $bottom = null, $left = null, string $colour = null) : self |
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| 510 | { |
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| 511 | $this->style->setBorder($top, $right, $bottom, $left, $colour); |
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| 512 | |||
| 513 | return $this; |
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| 514 | } |
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| 515 | |||
| 516 | public function setBorderTopWidth(int $width) : self |
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| 517 | { |
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| 518 | $this->style->setBorderTopWidth($width); |
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| 519 | |||
| 520 | return $this; |
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| 521 | } |
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| 522 | |||
| 523 | public function setBorderRightWidth(int $width) : self |
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| 528 | } |
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| 529 | |||
| 530 | public function setBorderBottomWidth(int $width) : self |
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| 531 | { |
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| 532 | $this->style->setBorderBottomWidth($width); |
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| 533 | |||
| 534 | return $this; |
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| 535 | } |
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| 536 | |||
| 537 | public function setBorderLeftWidth(int $width) : self |
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| 538 | { |
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| 539 | $this->style->setBorderLeftWidth($width); |
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| 540 | |||
| 541 | return $this; |
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| 542 | } |
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| 543 | |||
| 544 | public function setBorderColour(string $colour, $fallback = null) : self |
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| 549 | } |
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| 550 | |||
| 551 | public function getStyle() : MenuStyle |
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| 552 | { |
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| 553 | return $this->style; |
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| 554 | } |
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| 555 | |||
| 556 | public function getTerminal() : Terminal |
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| 557 | { |
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| 558 | return $this->terminal; |
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| 559 | } |
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| 560 | |||
| 561 | private function getDefaultItems() : array |
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| 562 | { |
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| 563 | $actions = []; |
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| 564 | if ($this->subMenu) { |
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| 565 | $actions[] = (new SelectableItem($this->goBackButtonText, new GoBackAction)) |
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| 566 | ->setStyle($this->menu->getSelectableStyle()); |
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| 567 | } |
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| 568 | |||
| 569 | $actions[] = (new SelectableItem($this->exitButtonText, new ExitAction)) |
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| 570 | ->setStyle($this->menu->getSelectableStyle()); |
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| 571 | |||
| 572 | return $actions; |
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| 573 | } |
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| 574 | |||
| 575 | public function disableDefaultItems() : self |
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| 576 | { |
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| 577 | $this->disableDefaultItems = true; |
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| 578 | |||
| 579 | return $this; |
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| 580 | } |
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| 581 | |||
| 582 | public function displayExtra() : self |
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| 583 | { |
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| 584 | $this->style->setDisplaysExtra(true); |
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| 585 | |||
| 586 | return $this; |
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| 587 | } |
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| 588 | |||
| 589 | private function itemsHaveExtra(array $items) : bool |
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| 590 | { |
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| 591 | return !empty(array_filter($items, function (MenuItemInterface $item) { |
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| 592 | return $item->showsItemExtra(); |
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| 593 | })); |
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| 594 | } |
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| 595 | |||
| 596 | public function build() : CliMenu |
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| 597 | { |
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| 598 | if (!$this->disableDefaultItems) { |
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| 599 | $this->menu->addItems($this->getDefaultItems()); |
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| 600 | } |
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| 601 | |||
| 602 | if (!$this->style->getDisplaysExtra()) { |
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| 603 | $this->style->setDisplaysExtra($this->itemsHaveExtra($this->menu->getItems())); |
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| 604 | } |
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| 605 | |||
| 606 | return $this->menu; |
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| 607 | } |
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| 608 | |||
| 609 | public function setCheckableStyle(callable $itemCallable) : self |
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| 610 | { |
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| 611 | $this->menu->setCheckableStyle($itemCallable); |
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| 612 | |||
| 613 | return $this; |
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| 614 | } |
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| 615 | |||
| 616 | public function setRadioStyle(callable $itemCallable) : self |
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| 617 | { |
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| 618 | $this->menu->setRadioStyle($itemCallable); |
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| 619 | |||
| 620 | return $this; |
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| 621 | } |
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| 622 | |||
| 623 | public function setSelectableStyle(callable $itemCallable) : self |
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| 628 | } |
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| 629 | } |
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| 630 |
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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.