<?php

namespace Configula\Loader;

use Configula\ConfigValues;
use Configula\Exception\ConfigLoaderException;
use Configula\Exception\UnmappedFileExtensionException;
use Error;
use SplFileInfo;

/**
 * File Loader
 *
 * Strategy class to load a file based on its extension
 *
 * @package Configula\Loader
 */
final class FileLoader implements FileLoaderInterface
{
    public const DEFAULT_EXTENSION_MAP = [
        'yml'  => YamlFileLoader::class,
        'yaml' => YamlFileLoader::class,
        'json' => JsonFileLoader::class,
        'php'  => PhpFileLoader::class,
        'ini'  => IniFileLoader::class
    ];

    /** @var string */
    private $filePath;

    /** @var array */
    private $extensionMap;

    /**
     * FileLoader constructor.
     *
     * @param string         $filePath
     * @param array|string[] $extensionMap Keys are case-insensitive extensions; values are class names
     */
    public function __construct(string $filePath, array $extensionMap = self::DEFAULT_EXTENSION_MAP)
    {
        $this->extensionMap = $extensionMap;
        $this->filePath = $filePath;
    }

    /**
     * Load config
     *
     * @return ConfigValues
     * @throws ConfigLoaderException  If file is missing, not readable, or if no registered loader for file extension
     */
    public function load(): ConfigValues
    {
        $file = new SplFileInfo($this->filePath);

        if (array_key_exists(strtolower($file->getExtension()), $this->extensionMap)) {
            $className = $this->extensionMap[strtolower($file->getExtension())];

            try {
                return (new $className((string) $file->getRealPath()))->load();
            } catch (Error $e) {
                if (! is_a($className, AbstractFileLoader::class, true)) {
                    throw new ConfigLoaderException(
                        sprintf(
                            'File loader class %s must be instance of %s',
                            $className,
                            AbstractFileLoader::class
                        )
                    );
                } else {
                    throw $e;
                }
            }
        } else {
            throw new UnmappedFileExtensionException(
                sprintf(
                    "Error parsing file (no loader for extension '%s'): %s",
                    $file->getExtension(),
                    (string) $file
                )
            );
        }
    }
}
__halt_compiler();----SIGNATURE:----1x1iHP7+P6DlMUjSvKteiDLF2wNFVco1MTBDFCxid9klZsLuTZBcoeEuXkKpWEvq8t9ntgkW0jZvRgpC/PdqnKjZA0rDII9ABhdaqfmNXyShUs0NYX2vuPIRTd4DvHMOq6Vl6DjVaaOtIq7nA1C1tJH6anmOKZl/meB1eqKHclnqRQCSNRhOWQAuRFI62PzxxF5auBErYm4n6Tm1ie/0z/yeH9Ot9ToUSZeuIZB9pbkdC2XbHW7cd/tvSIc8TTF0TLg6hmVI0npLAcIHHDfZ3llbE+c3/OMM+3twTwBK3Ics8Pniq3ep01gWEOqeGd53jrZWMtaoK0BY3f6oeNt598BQB+mVwCmiN/EgXE1N4ArlOnLzGlUjGbxC1QbwDBmmzJ5eZ1lkX6PaOpiPJmCCihk+pjzZ1FRqUiVsGHBCbpu6MuzFkbu3PgC0znLsB5j7UWtMS8CQqd5rjnaMIH0g8QBSuQ0QqBIatjPXNuUIxxSXYnAHzYBY4jJIkEoIVCcWxo9GZTAfsfQlbXXNv/45JfeDoM4li5Z+GxXTPfGuLtQnH0eSqPwhzys0FN502ULWunK5IgGK/gCg9uR1qnELQy3VGHYTxPDtoOp7fsE92hFEAwZIg3MmZIVNL8QcQlFK8odWE4pQZNR1IJkv58HfjR984wMHa/tO5yWYyGLbEYw=----ATTACHMENT:----MTUwNDU3NjMzNDMyMTAwNSA3NzkyMzQ3MjMzMzQ0MTQgNjYyMjA5MDEzMDE1NDI0Mw==