<?php

namespace VfxApply\Plugin\Executor;

use VfxApply\Plugin;
use VfxApply\Input;
use VfxApply\Output;
use VfxApply\Preset;

class ExecutorPlugin extends Plugin
{
    public function getName()
    {
        return "executor";
    }
    
    public function applyPreset(Preset $preset, Input $input, Output $output)
    {
        
        $env = [
            'uinput' => $input->getFilename(),
            'uoutput' => $output->getFilename(),
            'frames' => $input->getVideoDuration()->frames,
            'seconds' => $input->getVideoDuration()->seconds,
        ];
        $env['input'] = escapeshellarg($env['uinput']);
        $env['output'] = escapeshellarg($env['uoutput']);
        
        $script = $this->loadScript($preset);
        $script->setPlugin($this);
        $script->execute($env);
    }


    private function loadScript(Preset $preset)
    {
        $script = new Script();
        foreach ((array)$preset->get('set') as $k=>$v) {
            $script->set($k,$v);
        }
        foreach ((array)$preset->get('script') as $name=>$step) {
            $op = new Operation($name, $step);
            $script->addOperation($op);
        }
        foreach ((array)$preset->get('helpers') as $name=>$helper) {
            $hs = new Helper($helper);
            $script->addHelper($name, $hs);
        }
        return $script;
    }

}

return new ExecutorPlugin();