use JustSteveKing\OS\Contracts\ProcessContract;

class Terraform implements ProcessContract
{
    //
}

use JustSteveKing\OS\Contracts\CommandContract;
use JustSteveKing\OS\Contracts\ProcessContract;
use Symfony\Component\Process\Process;

class Terraform implements ProcessContract
{
    private CommandContract $command;
    
    public function build() : Process
    {
        return new Process(
            command: $this->command->toArgs(),
        );
    }
}

use JustSteveKing\OS\Contracts\CommandContract;

class TerraformCommand implements CommandContract
{
    public function __construct(
        public readonly array $args = [],
        public readonly null|string $executable = null,
    ) {}
    
    public function toArgs() : array
    {
        $executable = (new ExecutableFinder())->find(
            name: $this->executable ?? 'terraform',
        );

        if (null === $executable) {
            throw new InvalidArgumentException(
                message: "Cannot find executable for [$this->executable].",
            );
        }

        return array_merge(
            [$executable],
            $this->args,
        );
    }
}

use JustSteveKing\OS\Contracts\CommandContract;
use JustSteveKing\OS\Contracts\ProcessContract;
use Symfony\Component\Process\Process;

class Terraform implements ProcessContract
{
    private CommandContract $command;
    
    public function apply(): Process
    {
        $this->command = new TerraformCommand(
            executable: 'terraform',
        );
        
        return $this->build();
    }
    
    public function build() : Process
    {
        return new Process(
            command: $this->command->toArgs(),
        );
    }
}

$terraform = new Terraform();

$terraform->apply()->run(); // Will run `terraform apply` in an OS process.