<?php

namespace Chill\MainBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\Collection;
use Doctrine\Common\Collections\ArrayCollection;
use Symfony\Component\Security\Core\User\AdvancedUserInterface;
use Symfony\Component\Validator\Context\ExecutionContextInterface;

/**
 * User
 *
 * @ORM\Entity(repositoryClass="Chill\MainBundle\Repository\UserRepository")
 * @ORM\Table(name="users")
 * @ORM\Cache(usage="NONSTRICT_READ_WRITE", region="acl_cache_region")
 */
class User implements AdvancedUserInterface {
    
    /**
     * @var integer
     *
     * @ORM\Id
     * @ORM\Column(name="id", type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @var string
     *
     * @ORM\Column(type="string", length=80)
     */
    private $username;
    
    /**
     * @var string
     *
     * @ORM\Column(
     *     type="string",
     *     length=80,
     *     unique=true)
     */
    private $usernameCanonical;
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=150, nullable=true)
     */
    private $email;
    
    /**
     * @var string
     *
     * @ORM\Column(
     *     type="string",
     *     length=150,
     *     nullable=true,
     *     unique=true)
     */
    private $emailCanonical;
    
    /**
     * @var string
     *
     * @ORM\Column(type="string", length=255)
     */
    private $password;
    
    /**
     * @var string
     * @internal must be set to null if we use bcrypt
     *
     * @ORM\Column(type="string", length=255, nullable=true)
     */
    private $salt = null;
    
    /**
     * @var boolean
     *
     * @ORM\Column(type="boolean")
     *      sf4 check: in yml was false by default !?
     */
    private $locked = true;
    
    /**
     * @var boolean
     *
     * @ORM\Column(type="boolean")
     */
    private $enabled = true;
    
    /**
     * @var Collection
     *
     * @ORM\ManyToMany(
     *     targetEntity="Chill\MainBundle\Entity\GroupCenter",
     *     inversedBy="users")
     * @ORM\Cache(usage="NONSTRICT_READ_WRITE")
     */
    private $groupCenters;

    /**
     * Array where SAML attributes's data are stored
     * @var array
     *
     * @ORM\Column(type="json_array", nullable=true)
     */
    private $attributes;
    
    /**
     * User constructor.
     */
    public function __construct()
    {
        $this->groupCenters = new ArrayCollection();
    }
    
    /**
     * @return string
     */
    public function __toString()
    {
        return $this->getUsername();
    }

    /**
     * Get id
     *
     * @return integer
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set username
     *
     * @param string $name
     * @return Agent
     */
    public function setUsername($name)
    {
        $this->username = $name;
    
        return $this;
    }
    
    /**
     * @return string
     */
    public function getUsername()
    {
        return $this->username;
    }
    
    /**
     */
    public function eraseCredentials() {}
    
    /**
     * @return array
     */
    public function getRoles()
    {
        return array('ROLE_USER');
    }
    
    /**
     * @return null|string
     */
    public function getSalt()
    {
        return $this->salt;
    }
    
    /**
     * @param $usernameCanonical
     * @return $this
     */
    public function setUsernameCanonical($usernameCanonical)
    {
        $this->usernameCanonical = $usernameCanonical;
        
        return $this;
    }
    
    /**
     * @return string
     */
    public function getUsernameCanonical()
    {
        return $this->usernameCanonical;
    }
    
    /**
     * @param $email
     * @return $this
     */
    public function setEmail($email)
    {
        $this->email = $email;
        
        return $this;
    }
    
    /**
     * @return string
     */
    public function getEmail()
    {
        return $this->email;
    }
    
    /**
     * @param $emailCanonical
     * @return $this
     */
    public function setEmailCanonical($emailCanonical)
    {
        $this->emailCanonical = $emailCanonical;
        
        return $this;
    }
    
    /**
     * @return string
     */
    public function getEmailCanonical()
    {
        return $this->emailCanonical;
    }
    
    /**
     * @param $password
     * @return $this
     */
    function setPassword($password)
    {
        $this->password =  $password;
        
        return $this;
    }

    /**
     * @return string
     */
    public function getPassword()
    {
        return $this->password;
    }
    
    /**
     * @param $salt
     * @return $this
     */
    function setSalt($salt)
    {
        $this->salt = $salt;
        return $this;
    }
    
    /**
     * @return bool
     */
    public function isAccountNonExpired()
    {
        return true;
    }
    
    /**
     * @return bool
     */
    public function isAccountNonLocked()
    {
        return $this->locked;
    }
    
    /**
     * @return bool
     */
    public function isCredentialsNonExpired()
    {
        return true;
    }
    
    /**
     * @return bool
     */
    public function isEnabled()
    {
        return $this->enabled;
    }
    
    /**
     * @param bool $enabled
     */
    public function setEnabled($enabled)
    {
        $this->enabled = $enabled;
        
        return $this;
    }
    
    /**
     * @return GroupCenter
     */
    public function getGroupCenters()
    {
        return $this->groupCenters;
    }
    
    /**
     * @param \Chill\MainBundle\Entity\GroupCenter $groupCenter
     * @return \Chill\MainBundle\Entity\User
     */
    public function addGroupCenter(GroupCenter $groupCenter)
    {
        $this->groupCenters->add($groupCenter);
        return $this;
    }
    
    /**
     * @param \Chill\MainBundle\Entity\GroupCenter $groupCenter
     * @throws \RuntimeException if the groupCenter is not in the collection
     */
    public function removeGroupCenter(GroupCenter $groupCenter)
    {
        if ($this->groupCenters->removeElement($groupCenter) === FALSE) {
            throw new \RuntimeException(sprintf("The groupCenter could not be removed, "
                    . "it seems not to be associated with the user. Aborting."));
        }
    }
    
    /**
     * This function check that groupCenter are present only once. The validator 
     * use this function to avoid a user to be associated to the same groupCenter
     * more than once.
     */
    public function isGroupCenterPresentOnce(ExecutionContextInterface $context)
    {
        $groupCentersIds = array();
        foreach ($this->getGroupCenters() as $groupCenter) {
            if (in_array($groupCenter->getId(), $groupCentersIds)) {
                $context->buildViolation("The user has already those permissions")
                        ->addViolation();
                
            } else {
                $groupCentersIds[] = $groupCenter->getId();
            }
        }
    }

    /**
     * Set attributes
     *
     * @param array $attributes
     *
     * @return Report
     */
    public function setAttributes($attributes)
    {
        $this->attributes = $attributes;

        return $this;
    }

    /**
     * Get attributes
     *
     * @return array
     */
    public function getAttributes()
    {
        if ($this->attributes === null) {
            $this->attributes = [];
        }

        return $this->attributes;
    }
}