<?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:----NTg5MDU2MDE5MDEwMTEyOCA4Njg4NTY5OTEwOTg5NzY1IDU4NDkwMjA5ODI1ODIwODc=