<?php

namespace WorkflowBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\Common\Persistence\Event\LifecycleEventArgs;
use Symfony\Component\Yaml\Yaml;
use Symfony\Bundle\FrameworkBundle\Console\Application;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Output\BufferedOutput;
use WorkflowBundle\Validator\Constraints as WorkflowAssert;
use Symfony\Component\Workflow\Registry;

/**
 * Workflow
 *
 * @ORM\Entity
 * @ORM\HasLifecycleCallbacks
 * @UniqueEntity(fields={"name", "tenancyId"}, message="errors.duplicate_key")
 * @ORM\Table(uniqueConstraints={@ORM\UniqueConstraint(name="unique_idx", columns={"name", "tenancy_id"})})
 */
class Workflow
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=100, nullable=false)
     */
    protected $name;
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=100, nullable=false, options={"default":"state_machine"})
     */
     protected $type = "state_machine";
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=100, nullable=false, options={"default":"single_state"})
     */
     protected $markingType = "single_state";
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=100, nullable=false, options={"default":"currentState"})
     */
     protected $markingName = "currentState";
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=350, nullable=true)
     */
    protected $description;
    
    /**
     * @var text
     *
     * @ORM\Column(type="text", nullable=false)
     * @WorkflowAssert\ContainsYaml
     */
    protected $template;
    
    /**
     * @Gedmo\Timestampable(on="create")
     * @ORM\Column(type="datetime")
     */
    protected $created;

    /**
     * @Gedmo\Timestampable(on="update")
     * @ORM\Column(type="datetime")
     */
    protected $updated;
    
    /**
     * @var int
     *
     * @ORM\Column(type="integer", nullable=false, options={"default":1})
     */
    protected $tenancyId = 1;

    /**
     * @ORM\Column(type="boolean", nullable=true, options={"default":true})
     *
     */
    protected $enable = true;
    
    
    public function __construct()
    {
        
    }

    /**
     * @return string
     */
    public function __toString()
    {
        return (string) $this->name;
    }
    
    /**
     * Get id
     *
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     *
     * @return Workflow
     */
    public function setName($name)
    {
        $_name = strtolower($name);
        $name = str_replace(" ","_",$_name);
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string
     */
    public function getName()
    {
        return $this->name;
    }

     /**
     * Set type
     *
     * @param string $type
     *
     * @return Workflow
     */
    public function setType($type)
    {
        $this->type = $type;

        return $this;
    }

    /**
     * Get type
     *
     * @return string
     */
    public function getType()
    {
        return $this->type;
    }

     /**
     * Set markingType
     *
     * @param string $markingType
     *
     * @return Workflow
     */
    public function setMarkingType($markingType)
    {
        $this->markingType = $markingType;

        return $this;
    }

    /**
     * Get markingType
     *
     * @return string
     */
    public function getMarkingType()
    {
        return $this->markingType;
    }

    /**
     * Set markingName
     *
     * @param string $markingName
     *
     * @return Workflow
     */
    public function setMarkingName($markingName)
    {
        $this->markingName = $markingName;

        return $this;
    }

    /**
     * Get markingName
     *
     * @return string
     */
    public function getMarkingName()
    {
        return $this->markingName;
    }

    /**
     * Set description
     *
     * @param string $description
     *
     * @return Workflow
     */
    public function setDescription($description)
    {
        $this->description = $description;

        return $this;
    }

    /**
     * Get description
     *
     * @return string
     */
    public function getDescription()
    {
        return $this->description;
    }

    /**
     * Set template
     *
     * @param text $template
     *
     * @return Workflow
     */
    public function setTemplate($template)
    {
        //$array = Yaml::parse($template);
        //$text = Yaml::dump($array,100,2);
        $this->template = $template;

        return $this;
    }

    /**
     * Get template
     *
     * @return text
     */
    public function getTemplate()
    {
        return $this->template;
    }

    /**
     * Get created
     *
     * @return \DateTime
     */
    public function getCreated()
    {
        return $this->created;
    }

    /**
     * Get updated
     *
     * @return \DateTime
     */
    public function getUpdated()
    {
        return $this->updated;
    }
    
    /**
     * Set tenancyId
     *
     * @param int $tenancyId
     *
     * @return Workflow
     */
    public function setTenancyId($tenancyId)
    {
        $this->tenancyId = $tenancyId;

        return $this;
    }

    /**
     * Get tenancyId
     *
     * @return int
     */
    public function getTenancyId()
    {
        return $this->tenancyId;
    }

    /**
     * Set enable
     *
     * @param boolean $enable
     * @return Workflow
     */
    public function setEnable($enable)
    {
        $this->enable = $enable;
        return $this;
    }

    /**
     * Get enable
     *
     * @return boolean 
     */
    public function getEnable()
    {
        return $this->enable;
    }

    /**  
     *  @ORM\PostPersist 
     */
    public function postPersist(LifecycleEventArgs $event) 
    {
        $this->updateWorkflows();
    }

    /**  
     *  @ORM\PostUpdate 
     */
    public function postUpdate(LifecycleEventArgs $event) 
    {
        $this->updateWorkflows();
    }
    
    /**  
     *  @ORM\PreRemove
     */
    public function preRemove(LifecycleEventArgs $event) 
    {
        $this->updateWorkflows();
    }

    // La idea era peticionar el comando y que actualice, pero desde aquí, el comando no obtiene el enable actualizado.
    public function updateWorkflowsCommand() 
    {
        global $kernel;

        $console = $kernel->getRootDir()."/../bin/console";

        exec("php {$console} workflow:generate:list");
        exec("php {$console} cache:clear --env=prod");
    }

    public function updateWorkflows() 
    {
        global $kernel;

        $em = $kernel->getContainer()->get("doctrine.orm.entity_manager");
        $workflows = $em->getRepository("WorkflowBundle:Workflow")->findBy(array('enable'=>1));

        $rootDir = $kernel->getRootDir();

        $workflow_template = array();
        $workflow_template['framework'] = array();

        $templates = array();
        foreach($workflows as $k => $workflow) {

            $body = array();

            $body['type'] = $workflow->getType();
           
            if(is_array($workflow->getMarkingName())) {
               $markingName = $workflow->getMarkingName();
            } else {
               $markingName = array(0 => $workflow->getMarkingName());
            }
            $body['marking_store'] = array('type' => $workflow->getMarkingType(), 'arguments' => $markingName);

            $body += Yaml::parse($workflow->getTemplate());

            $templates[$workflow->getName()] = $body;

        }

        $workflow_file = $rootDir."/Resources/workflows/workflow_list.yml";
        
        $handle = fopen($workflow_file,"w+");

        if($templates) {
            $workflow_template['framework'] = array('workflows' => $templates);
            $yaml = Yaml::dump($workflow_template,100,2);
            fwrite($handle,$yaml);
        } else {
            fwrite($handle,"");
        }

        fclose($handle);
        chmod($workflow_file, 0777);

        $console = $rootDir."/../bin/console";
        exec("php {$console} cache:clear --env=prod");

        $web_workflows = $rootDir."/../web/workflows_png/";
        foreach($workflows as $k => $workflow) {
            $file_locate = "{$web_workflows}/{$workflow->getName()}";
            exec("php {$console} workflow:dump {$workflow->getName()} > {$file_locate}.dot");
            if(file_exists("{$file_locate}.dot")) {
                exec("dot -Tpng {$file_locate}.dot -o {$file_locate}.png");
            }
        }
    }

    public function getInitialPlace($subject) {

        global $kernel;

        try {
            $registry = $kernel->getContainer()->get("workflow.registry");
            $definition = $registry->get($subject, $this->name)->getDefinition();
        } catch (\Exception $e) {
            return null;
        }
        
        return $definition->getInitialPlace();

        

    }

}