<?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:----NzIyNjc4NDM2Mjg2ODA1NyA5MTkwMzc4MTk1MjU4OSAyNDMwNzYzOTI3MzQwNjQ1