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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** |
| 6 | * This file is part of php-fast-forward/config. |
| 7 | * |
| 8 | * This source file is subject to the license bundled |
| 9 | * with this source code in the file LICENSE. |
| 10 | * |
| 11 | * @link https://github.com/php-fast-forward/config |
| 12 | * @copyright Copyright (c) 2025 Felipe Sayão Lobato Abreu <github@mentordosnerds.com> |
| 13 | * @license https://opensource.org/licenses/MIT MIT License |
| 14 | */ |
| 15 | |
| 16 | namespace FastForward\Config; |
| 17 | |
| 18 | /** |
| 19 | * Class AggregateConfig. |
| 20 | * |
| 21 | * Represents an aggregated configuration loader that combines multiple configuration sources. |
| 22 | * This class MUST be used to merge multiple configurations into a single, unified configuration structure. |
| 23 | * |
| 24 | * It SHALL lazily load and resolve configuration data only when invoked. |
| 25 | */ |
| 26 | final class AggregateConfig implements ConfigInterface |
| 27 | { |
| 28 | use LazyLoadConfigTrait; |
| 29 | |
| 30 | /** |
| 31 | * @var ConfigInterface[] A list of configuration providers to be aggregated. |
| 32 | * Each configuration MUST implement ConfigInterface. |
| 33 | */ |
| 34 | private readonly array $configs; |
| 35 | |
| 36 | /** |
| 37 | * AggregateConfig constructor. |
| 38 | * |
| 39 | * Constructs a new instance by accepting a variadic list of configuration objects. |
| 40 | * These configuration objects MUST implement the ConfigInterface. |
| 41 | * |
| 42 | * @param ConfigInterface ...$configs One or more configuration instances to aggregate. |
| 43 | */ |
| 44 | public function __construct(ConfigInterface ...$configs) |
| 45 | { |
| 46 | $this->configs = $configs; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * Invokes the configuration aggregator. |
| 51 | * |
| 52 | * This method SHALL initialize a new ArrayConfig instance and populate it |
| 53 | * with the values from each provided configuration source. |
| 54 | * |
| 55 | * It MUST return a fully merged configuration in the form of a ConfigInterface implementation. |
| 56 | * |
| 57 | * @return ConfigInterface the resulting merged configuration object |
| 58 | */ |
| 59 | public function __invoke(): ConfigInterface |
| 60 | { |
| 61 | $arrayConfig = new ArrayConfig(); |
| 62 | |
| 63 | foreach ($this->configs as $config) { |
| 64 | $arrayConfig->set($config->toArray()); |
| 65 | } |
| 66 | |
| 67 | return $arrayConfig; |
| 68 | } |
| 69 | } |