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| 1 | <?php |
| 2 | /** |
| 3 | * OptionBuilder.php |
| 4 | * |
| 5 | * This file is part of the Codex design system, the official design system |
| 6 | * for Wikimedia projects. It provides the `Option` class, a builder for constructing |
| 7 | * individual option items within the `Select` component using the Codex design system. |
| 8 | * |
| 9 | * The `Option` class allows for easy and flexible creation of option elements with |
| 10 | * properties such as value, display text, and selected state. |
| 11 | * |
| 12 | * @category Builder |
| 13 | * @package Codex\Builder |
| 14 | * @since 0.1.0 |
| 15 | * @author Doğu Abaris <abaris@null.net> |
| 16 | * @license https://www.gnu.org/copyleft/gpl.html GPL-2.0-or-later |
| 17 | * @link https://doc.wikimedia.org/codex/main/ Codex Documentation |
| 18 | */ |
| 19 | |
| 20 | namespace Wikimedia\Codex\Builder; |
| 21 | |
| 22 | use InvalidArgumentException; |
| 23 | use Wikimedia\Codex\Component\Option; |
| 24 | |
| 25 | /** |
| 26 | * OptionBuilder |
| 27 | * |
| 28 | * This class implements the builder pattern to construct instances of Option. |
| 29 | * It provides a fluent interface for setting various properties and building the |
| 30 | * final immutable object with predefined configurations and immutability. |
| 31 | * |
| 32 | * @category Builder |
| 33 | * @package Codex\Builder |
| 34 | * @since 0.1.0 |
| 35 | * @author Doğu Abaris <abaris@null.net> |
| 36 | * @license https://www.gnu.org/copyleft/gpl.html GPL-2.0-or-later |
| 37 | * @link https://doc.wikimedia.org/codex/main/ Codex Documentation |
| 38 | */ |
| 39 | class OptionBuilder { |
| 40 | |
| 41 | /** |
| 42 | * The value of the option, used for form submission and programmatic selection. |
| 43 | */ |
| 44 | protected string $value = ''; |
| 45 | |
| 46 | /** |
| 47 | * The display text for the option, shown in the select dropdown. |
| 48 | */ |
| 49 | protected string $text = ''; |
| 50 | |
| 51 | /** |
| 52 | * Indicates whether the option is selected by default. |
| 53 | */ |
| 54 | protected bool $selected = false; |
| 55 | |
| 56 | /** |
| 57 | * Set the value for the option. |
| 58 | * |
| 59 | * The value is used for form submission when this option is selected. |
| 60 | * |
| 61 | * @since 0.1.0 |
| 62 | * @param string $value The unique value of the option. |
| 63 | * @return $this Returns the Option instance for method chaining. |
| 64 | */ |
| 65 | public function setValue( string $value ): self { |
| 66 | if ( trim( $value ) === '' ) { |
| 67 | throw new InvalidArgumentException( 'Option value cannot be empty.' ); |
| 68 | } |
| 69 | $this->value = $value; |
| 70 | |
| 71 | return $this; |
| 72 | } |
| 73 | |
| 74 | /** |
| 75 | * Set the display text for the option. |
| 76 | * |
| 77 | * The text is shown in the select dropdown. If not set, the value can also serve as the default display text. |
| 78 | * |
| 79 | * @since 0.1.0 |
| 80 | * @param string $text The display text for the option. |
| 81 | * @return $this Returns the Option instance for method chaining. |
| 82 | */ |
| 83 | public function setText( string $text ): self { |
| 84 | $this->text = $text; |
| 85 | |
| 86 | return $this; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Set whether the option should be selected by default. |
| 91 | * |
| 92 | * This method specifies whether the option is pre-selected when the select dropdown is first displayed. |
| 93 | * |
| 94 | * @since 0.1.0 |
| 95 | * @param bool $selected Whether the option is selected by default. |
| 96 | * @return $this Returns the Option instance for method chaining. |
| 97 | */ |
| 98 | public function setSelected( bool $selected ): self { |
| 99 | $this->selected = $selected; |
| 100 | |
| 101 | return $this; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Build and return the Option component object. |
| 106 | * This method constructs the immutable Option object with all the properties set via the builder. |
| 107 | * |
| 108 | * @since 0.1.0 |
| 109 | * @return Option The constructed Option. |
| 110 | */ |
| 111 | public function build(): Option { |
| 112 | return new Option( |
| 113 | $this->value, |
| 114 | $this->text, |
| 115 | $this->selected, |
| 116 | ); |
| 117 | } |
| 118 | } |