<?php

namespace Configula\Loader;

use Configula\ConfigLoaderInterface;
use Configula\ConfigValues;
use InvalidArgumentException;
use SplFileInfo;

/**
 * Class CascadingLoader
 *
 * @package FandF\Config
 */
class CascadingConfigLoader implements ConfigLoaderInterface
{
    /** @var iterable|ConfigLoaderInterface[] */
    private $loaders;

    /**
     * Pass in an iterable list of multiple loaders, file names, or arrays of values
     *
     * @param  iterable|array[]|string[]|SplFileInfo[]|ConfigLoaderInterface[] $items
     * @return CascadingConfigLoader
     */
    public static function build(iterable $items): CascadingConfigLoader
    {
        foreach ($items as $item) {
            switch (true) {
                case $item instanceof ConfigLoaderInterface:
                    $loaders[] = $item;
                    break;
                case is_array($item):
                    $loaders[] = new ArrayValuesLoader($item);
                    break;
                case is_string($item) && file_exists($item):
                    $loaders[] = new FileLoader($item);
                    break;
                case $item instanceof SplFileInfo:
                    $loaders[] = ($item->isDir()) ? new FolderLoader($item) : new FileLoader((string) $item);
                    break;
                default:
                    throw new InvalidArgumentException(sprintf(
                        'Invalid config source (allowed: array, string (filepath), \SplFileInfo, or config loader): %s',
                        gettype($item)
                    ));
            }
        }

        return new static($loaders ?? []);
    }

    /**
     * CascadingLoader constructor.
     *
     * @param iterable|ConfigLoaderInterface[] $loaders Loaders, in the order that you want to load them
     */
    final public function __construct(iterable $loaders)
    {
        $this->loaders = $loaders;
    }

    /**
     * Load config
     *
     * @return ConfigValues
     */
    public function load(): ConfigValues
    {
        $config = new ConfigValues([]);

        foreach ($this->loaders as $loader) {
            $config = $config->merge($loader->load());
        }

        return $config;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODgyMzQ4NjE5OTQyMjk4MCA3OTU5MDE3OTAxNDI3NTM4IDUyNzE2MjIyNjI5NzkzMDk=