<?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:----NDk4MDc2ODk0MjIzNzQ1NiA0NzAyNzMzMzc4NjA2MTU2IDc1MDUwODkyMjgwMjk1ODg=