<?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:----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----ATTACHMENT:----MTYzNzc2MDM0NTExMjY4NyA1ODk4ODU1MTAyMTA4MzA4IDg3MzI3MDk4MTcyNDc1MjY=