<?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:----ODQ4MDE0MDU0ODgxMzU4MCAzOTMyNDUxMDI1Nzk5OTYzIDg5MjcwODk3MTc4NzYxNw==