Migrate Laravel factories to class factories

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;
use File;

class MigrateToNewFactories extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'factories:new';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    private $modelsForFactory;

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        // move the database/factories  to the database/factories-old directorie
        // if you have a ModelFactory.php file with multiple factories, move it to the database directory
        $this->modelsForFactory = collect();
        $this->recreateFactories();
        $this->factoryFunction('tests');
        $this->factoryFunction('database/factories');

        return 0;
    }

    public function factoryFunction($dir)
    {
        $files = \File::allFiles(base_path($dir));
        foreach ($files as $file) {
            $path = $file->getPathname();
            if (Str::of($path)->endsWith('php')) {
                $this->fixFactoryFunction($file->getPathname());
            }
        }
    }

    public function fixFactoryFunction($path)
    {
        $file = \File::get($path);
        $regex = "/factory\(('(.+)'|\"(.+)\"|(.+)::class)(, *?(\d+))?\)/";
        $fixed = preg_replace_callback($regex, function ($matches) {
            $matches = collect($matches);

            if (count($matches) <= 5) {
                $modelClassNameMatch = $matches->last();
                $modelClassName = $this->indetifyRelativeOrAbsoluteModelClassName($modelClassNameMatch);

                return $modelClassName . '::factory()';
            }
            $matches = $matches->filter(fn($item) => !empty($item))->values();
            $this->info($matches);

            $modelClassNameMatch = $matches->get($matches->count() - 3);
            $modelClassName = $this->indetifyRelativeOrAbsoluteModelClassName($modelClassNameMatch);

            return $modelClassName . '::factory()->count(' . collect($matches)->last() . ')';

        }, $file);
        \File::put($path, $fixed);
        $this->info("Done $path");
    }

    private function recreateFactories()
    {
        $files = \File::allFiles(base_path('database/factories-old'));
        foreach ($files as $file) {
            $modelName = Str::of($file->getFilename())->replace('Factory.php', '');
            $this->createModelFactory($modelName);
        }

        $this->getModelFactoriesFromModelFactoryFile();
    }

    private function getModels($path)
    {
        $file = \File::get($path);
        $regex = "/create\((.*\W)?(\w+)::class/";
        preg_replace_callback($regex, function ($matches) {
            $this->modelsForFactory->push(collect($matches)->last());
        }, $file);
        $regex2 = '/.*\W(\w+)::factory\(/';
        preg_replace_callback($regex2, function ($matches) {
            $this->modelsForFactory->push(collect($matches)->last());
        }, $file);
    }

    private function createModelFactory(mixed $model)
    {
        $factoryClassName = "\\Database\\Factories\\{$model}Factory";
        if (!class_exists($factoryClassName)) {
            $this->getFactoryBodyFromFile($model);
            $this->addHasFactoryToModel($model);
        }
    }

    private function getFactoryBodyFromFile(mixed $model)
    {
        $path = database_path('factories-old/' . $model . 'Factory.php');
        $fileContents = File::get($path);
        $regex = "/\)\s*\{(.*)\}\);/s";
        $matches = null;
        preg_match_all($regex, $fileContents, $matches);
        $this->info('collect($matches)');
        $this->info($model);
        $returnCode = $matches[1][0];
        $returnCode = preg_replace('/\$faker/', '$this->faker', $returnCode);
        $modelClassName = $this->inferModelClassName($model);
        $factoryClassName = "{$model}Factory";
        $factoryClassCode = sprintf($this->template(), $modelClassName, $factoryClassName, $model . '::class', $returnCode);
        $this->info($path);
        File::put(database_path('factories/' . $model . 'Factory.php'), $factoryClassCode);
    }

    private function getModelFactoriesFromModelFactoryFile()
    {
        $path = database_path('/ModelFactory.php');
        $fileContents = File::get($path);
        $factories = Str::of($fileContents)->split('/\$factory->/');
        foreach ($factories as $key => $factory) {

            // skip the start of the code
            if ($key == 0) continue;
            $modelMatches = null;
            $modelRegex = "/define\((.+),/";
            preg_match($modelRegex, $factory, $modelMatches);

            $classNameCall = Str::of($modelMatches[1])->split('/\\\/')->last();
            $model = Str::of($classNameCall)->split('/::/')->first();

            $returnCodeMatches = null;
            $returnCoderegex = "/\)\s*\{(.*)\}\);/s";
            preg_match($returnCoderegex, $factory, $returnCodeMatches);

            $returnCode = $returnCodeMatches[1];
            $returnCode = preg_replace('/\$faker/', '$this->faker', $returnCode);
            $factoryClassName = "{$model}Factory";
            $factoryClassCode = sprintf($this->template(), $this->inferModelClassName($model), $factoryClassName, $model . '::class', $returnCode);
            $factoryPath = database_path('factories/' . $model . 'Factory.php');
            if (File::exists($factoryPath)) {
                throw new \Exception("The factory already exists " . $model);
            }
            File::put($factoryPath, $factoryClassCode);
            $this->addHasFactoryToModel($model);
        }
    }

    private function template()
    {
        $text = <<<STR
<?php

namespace Database\Factories;

use %s;
use Illuminate\Database\Eloquent\Factories\Factory;

class %s extends Factory
{
    /**
     * The name of the factory's corresponding model.
     *
     * @var string
     */
    protected \$model = %s;

    /**
     * Define the model's default state.
     *
     * @return array
     */
    public function definition()
    {
        %s
    }
}

STR;

        return $text;
    }

    private function inferModelClassName($model)
    {
        $modelClassName = "App\\" . $model;
        if (!class_exists($modelClassName)) {
            $modelClassName = "App\\Models\\" . $model;
        }

        return $modelClassName;
    }

    private function addHasFactoryToModel(mixed $model)
    {
        $modelClassName = "App\\" . $model;
        $modelFilePath = app_path($model . '.php');
        if (!class_exists($modelClassName)) {
            $modelFilePath = app_path('Models/' . $model . '.php');
        }
        $contents = File::get($modelFilePath);
        if (!Str::of($contents)->contains('HasFactory')) {
            $contents = preg_replace('/use Illuminate\\\Database\\\Eloquent\\\Model;/', "use Illuminate\Database\Eloquent\Model; \nuse Illuminate\Database\Eloquent\Factories\HasFactory;", $contents);
            $contents = preg_replace_callback("/\{(.*)\}/s", fn($matched) => "{\n    use HasFactory;" . $matched[1] . "\n}", $contents);
//        $this->info($contents);
            File::put($modelFilePath, $contents);
        }
    }

    private function indetifyRelativeOrAbsoluteModelClassName($modelClassNameMatch)
    {
        $modelClassName = Str::of($modelClassNameMatch);
        $splittedClassName = $modelClassName->split('/\\\/')->filter(fn($part) => $part !== "");
        if ($splittedClassName->count() > 1) {
            $modelClassName = $modelClassName->start('\\');
        }

        return $modelClassName;
    }

}