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ConfigLoader::load()   A

↳ Parent: ConfigLoader

Complexity

Conditions 3
Paths 3

Size

Total Lines 11
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 11
rs 9.4285
c 0
b 0
f 0
cc 3
eloc 8
nc 3
nop 1
1 
<?php namespace Tarsana\Command\Config;
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use Tarsana\Command\Config\Config;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Tarsana\Command\Helpers\Decoders\JsonDecoder;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Tarsana\Command\Interfaces\Config\ConfigInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Tarsana\Command\Interfaces\Config\ConfigLoaderInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Tarsana\IO\Interfaces\Filesystem as FilesystemInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Loads configuration from multiple files.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class ConfigLoader implements ConfigLoaderInterface {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected static $decoders = [

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        'json' => JsonDecoder::class

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    ];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected $fs;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct(FilesystemInterface $fs)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->fs = $fs;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function load(array $paths) : ConfigInterface

            


            
                                                                        
                            
            
                                    
            
            

                
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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        if (empty($paths))

            


            
                                                                        
                            
            
                                    
            
            

                
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            return new Config([]);

            


            
                                                                        
                            
            
                                    
            
            

                
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        $data = [];

            


            
                                                                        
                            
            
                                    
            
            

                
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        foreach ($paths as $path) {

            


            
                                                                        
                            
            
                                    
            
            

                
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            $data[] = $this->decode($path);

            


            
                                                                        
                            
            
                                    
            
            

                
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        }

            


            
                                                                        
                            
            
                                    
            
            

                
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        $data = call_user_func_array('array_replace_recursive', $data);

            


            
                                                                        
                            
            
                                    
            
            

                
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        return new Config($data);

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected function decode(string $path) : array {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if (! $this->fs->isFile($path))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            return [];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $file = $this->fs->file($path);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $ext  = $file->extension();

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if (! array_key_exists($ext, static::$decoders))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            throw new \Exception("Unknown configuration file extension '{$ext}'");

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $decoderClass = static::$decoders[$ext];

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $decoder = new $decoderClass;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return $decoder->decode($file->content());

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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