<?php

if (count($argv) !== 6) {
    echo 'Use of this Command:' . PHP_EOL
        . 'createApi API_IsExternal API_Namespace API_Name CQRS_IsCommand CQRS_Namespace' . PHP_EOL;
    die;
}

$projectSourceDirectory = 'src/';
$projectNamespace = 'MyTube';

$apiType        = strtolower($argv[1]) === 'true' ? 'External' : 'Internal';
$apiNamespace   = $argv[2];
$apiName        = $argv[3];
$cqrsType       = strtolower($argv[4]) === 'true' ? 'Command' : 'Query';
$cqrsNamespace  = $argv[5];

$apiDirectoryPath = $projectSourceDirectory . 'ApiDomain/' . $apiType . '/' . $apiNamespace . '/';
$cqrsDirectoryPath = $projectSourceDirectory . 'HandlingDomain/' . $cqrsNamespace . '/';

# API Handler
$apiHandlerName = $apiName . 'Handler';
$apiHandlerNamespace = $projectNamespace . '\\API\\' . $apiType . '\\' . $apiNamespace . '\\Handler';
$apiHandlerFilePath = $apiDirectoryPath . 'src/Handler/' . $apiHandlerName . '.php';

# Response Formatter
$apiResponseFormatterName = $apiName . 'ResponseFormatter';
$apiResponseFormatterNamespace = $projectNamespace . '\\API\\' . $apiType . '\\' . $apiNamespace . '\\ResponseFormatter';
$apiResponseFormatterUsingNamespace = $apiResponseFormatterNamespace . '\\' . $apiResponseFormatterName;
$apiResponseFormatterFilePath = $apiDirectoryPath . 'src/ResponseFormatter/' . $apiResponseFormatterName . '.php';

# CQRS
$cqrsFilePath = $cqrsDirectoryPath . 'src/Handler/' . $cqrsType . '/' . $apiName . '/';
$cqrsName = $apiName . $cqrsType;
$cqrsVariableName = lcfirst($cqrsName);
$cqrsNamespace = $projectNamespace . '\\Handling\\' . $cqrsNamespace . '\\Handler\\' . $cqrsType . '\\' . $apiName;

# Command / Query
$cqrsPath = $cqrsFilePath . $cqrsName . '.php';
$cqrsUsingNamespace = $cqrsNamespace . '\\' . $cqrsName;

# Result
$cqrsResultName = $cqrsName . 'Result';
$cqrsResultVariableName = lcfirst($cqrsResultName);
$cqrsResultPath = $cqrsFilePath . $cqrsResultName . '.php';
$cqrsResultUsingNamespace = $cqrsNamespace . '\\' . $cqrsResultName;

# Handler
$cqrsHandlerName = $cqrsName . 'Handler';
$cqrsHandlerVariableName = lcfirst($cqrsHandlerName);
$cqrsHandlerPath = $cqrsFilePath . $cqrsName . 'Handler' . '.php';
$cqrsHandlerUsingNamespace = $cqrsNamespace . '\\' . $cqrsHandlerName;

# Builder
$cqrsBuilderName = $cqrsName . 'Builder';
$cqrsBuilderVariableName = lcfirst($cqrsBuilderName);
$cqrsBuilderPath = $cqrsFilePath . $cqrsName . 'Builder' . '.php';
$cqrsBuilderUsingNamespace = $cqrsNamespace . '\\' . $cqrsBuilderName;


########## WRITE FILES ###############
function writeToFile($path, $content) {
    echo 'Writing contents to file ' . $path . PHP_EOL;

    $directory = pathinfo($path, PATHINFO_DIRNAME);
    if (!is_dir($directory)) {
        mkdir($directory, 0755, true);
    }

    file_put_contents($path, $content);
}

if (!file_exists($apiDirectoryPath)) {
    $routesFilePath = $apiDirectoryPath . 'config/routes.php';
    $serviceManagerFilePath = $apiDirectoryPath . 'config/service_manager.php';
}

$apiHandlerFileContent = "<?php

declare(strict_types=1);

namespace {$apiHandlerNamespace};

use {$cqrsHandlerUsingNamespace};
use {$cqrsBuilderUsingNamespace};
use {$apiResponseFormatterUsingNamespace};
use Psr\\Http\\Message\\ResponseInterface;
use Psr\\Http\\Message\\ServerRequestInterface;
use Psr\\Http\\Server\\RequestHandlerInterface;
use {$projectNamespace}\\Infrastructure\\Response\\SuccessResponse;

class {$apiHandlerName} implements RequestHandlerInterface
{
    public function __construct(
        private readonly {$cqrsHandlerName} \${$cqrsHandlerVariableName},
        private readonly {$cqrsBuilderName} \${$cqrsBuilderVariableName},
        private readonly {$apiResponseFormatterName} \$responseFormatter,
    ) {
    }
    
    public function handle(ServerRequestInterface \$request): ResponseInterface
    {
        \$data = json_decode(
            \$request->getBody()->getContents(),
            true
        );

        \${$cqrsVariableName} = \$this->{$cqrsBuilderVariableName}->build(
            \$data
        );
        \$result = \$this->{$cqrsHandlerVariableName}->execute(\${$cqrsVariableName});
        
        return new SuccessResponse(\$this->responseFormatter->format(\$result));
    }
}
";
writeToFile($apiHandlerFilePath, $apiHandlerFileContent);

$apiResponseFormatterFileContent = "<?php

declare(strict_types=1);

namespace {$apiResponseFormatterNamespace};

use {$cqrsResultUsingNamespace};

class {$apiResponseFormatterName}
{
    public function format({$cqrsResultName} \${$cqrsResultVariableName}): array
    {
        return [];
    }
}
";
writeToFile($apiResponseFormatterFilePath, $apiResponseFormatterFileContent);

$cqrsFileContent = "<?php

declare(strict_types=1);

namespace {$cqrsNamespace};

class {$cqrsName}
{
    public function __construct(
        #TODO    
    ) {    
    }
}
";
writeToFile($cqrsPath, $cqrsFileContent);

$cqrsResultFileContent = "<?php

declare(strict_types=1);

namespace {$cqrsNamespace};

class {$cqrsResultName}
{
    public function __construct(
        #TODO    
    ) {    
    }
}
";
writeToFile($cqrsResultPath, $cqrsResultFileContent);

$cqrsHandlerFileContent = "<?php

declare(strict_types=1);

namespace {$cqrsNamespace};

class {$cqrsHandlerName}
{
    public function __construct(
        #TODO
    ) {    
    }
    
    public function execute({$cqrsName} \${$cqrsVariableName}): {$cqrsResultName}
    {
        return new {$cqrsResultName}();
    }
}
";
writeToFile($cqrsHandlerPath, $cqrsHandlerFileContent);

$cqrsBuilderFileContent = "<?php

declare(strict_types=1);

namespace {$cqrsNamespace};

class {$cqrsBuilderName}
{
    public function build(
        #TODO
    ): {$cqrsName} {
        return new {$cqrsName}(
            #TODO
        );
    }
}
";
writeToFile($cqrsBuilderPath, $cqrsBuilderFileContent);