<?php

/*
 * Chill is a software for social workers
 *
 * Copyright (C) 2014-2015, Champs Libres Cooperative SCRLFS, 
 * <http://www.champs-libres.coop>, <info@champs-libres.coop>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace Chill\PersonBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Chill\MainBundle\Entity\User;

/**
 * AccompanyingPeriod
 *
 * @ORM\Entity()
 * @ORM\Table(name="chill_person_accompanying_period")
 */
class AccompanyingPeriod
{
    /**
     * @var integer
     *
     * @ORM\Id
     * @ORM\Column(name="id", type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @var \DateTime
     *
     * @ORM\Column(type="date")
     */
    private $openingDate;

    /**
     * @var \DateTime
     *
     * @ORM\Column(type="date", nullable=true)
     */
    private $closingDate = null;

    /**
     * @var string
     *
     * @ORM\Column(type="text")
     */
    private $remark = '';

    /**
     * @var Person
     *
     * @ORM\ManyToOne(
     *     targetEntity="Chill\PersonBundle\Entity\Person",
     *     inversedBy="accompanyingPeriods",
     *     cascade={"refresh"})
     */
    private $person;
    
    /**
     * @var AccompanyingPeriod\ClosingMotive
     *
     * @ORM\ManyToOne(
     *     targetEntity="Chill\PersonBundle\Entity\AccompanyingPeriod\ClosingMotive")
     * @ORM\JoinColumn(nullable=true)
     */
    private $closingMotive = null;
    
    /**
     * The user making the accompanying
     * @var User
     *
     * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\User")
     * @ORM\JoinColumn(nullable=true)
     */
    private $user;
    
    
    /**
     * AccompanyingPeriod constructor.
     *
     * @param \DateTime $dateOpening
     * @uses AccompanyingPeriod::setClosingDate()
     */
    public function __construct(\DateTime $dateOpening) {
        $this->setOpeningDate($dateOpening);
    }

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

    /**
     * Set openingDate
     *
     * @param \DateTime $dateOpening
     * @return AccompanyingPeriod
     */
    public function setOpeningDate($openingDate)
    {
        $this->openingDate = $openingDate;
    
        return $this;
    }

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

    /**
     * Set closingDate
     * 
     * For closing a Person file, you should use Person::setClosed instead.
     *
     * @param \DateTime $dateClosing
     * @return AccompanyingPeriod
     * 
     */
    public function setClosingDate($closingDate)
    {
        $this->closingDate = $closingDate;
    
        return $this;
    }

    /**
     * Get closingDate
     *
     * @return \DateTime 
     */
    public function getClosingDate()
    {
        return $this->closingDate;
    }
    
    /**
     * @return boolean
     */
    public function isOpen(): bool 
    {
        if ($this->getOpeningDate() > new \DateTime('now')) {
            return false;
        }

        if ($this->getClosingDate() === null) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * Set remark
     *
     * @param string $remark
     * @return AccompanyingPeriod
     */
    public function setRemark($remark)
    {
        if ($remark === null) {
            $remark = '';
        }
        
        $this->remark = $remark;
    
        return $this;
    }

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

    /**
     * Set person.
     *
     * For consistency, you should use Person::addAccompanyingPeriod instead.
     *
     * @param Person $person
     * @return AccompanyingPeriod
     * @see Person::addAccompanyingPeriod
     */
    public function setPerson(Person $person = null)
    {
        $this->person = $person;
    
        return $this;
    }

    /**
     * Get person
     *
     * @return Person
     */
    public function getPerson()
    {
        return $this->person;
    }
    
    /**
     * @return AccompanyingPeriod\ClosingMotive
     */
    public function getClosingMotive()
    {
        return $this->closingMotive;
    }
    
    /**
     * @param AccompanyingPeriod\ClosingMotive|null $closingMotive
     * @return $this
     */
    public function setClosingMotive(AccompanyingPeriod\ClosingMotive $closingMotive = null)
    {
        $this->closingMotive = $closingMotive;
        return $this;
    }
    
    /**
     * If the period can be reopened.
     * 
     * This function test if the period is closed and if the period is the last 
     * for the associated person
     * 
     * @return boolean
     */
    public function canBeReOpened()
    {
        if ($this->isOpen() === true) {
            return false;
        }
        
        $periods = $this->getPerson()->getAccompanyingPeriodsOrdered();
        
        return end($periods) === $this;
    }
    
    /**
     */
    public function reOpen()
    {
        $this->setClosingDate(null);
        $this->setClosingMotive(null);
    }

    /**
     * Validation function
     */
    public function isDateConsistent(ExecutionContextInterface $context)
    {
        if ($this->isOpen()) {
            return;
        }
        
        if (! $this->isClosingAfterOpening()) {
            $context->buildViolation('The date of closing is before the date of opening')
                ->atPath('dateClosing')
                ->addViolation();
        }
    }
    
    /**
     * Returns true if the closing date is after the opening date.
     * 
     * @return boolean
     */
    public function isClosingAfterOpening()
    {
        $diff = $this->getOpeningDate()->diff($this->getClosingDate());
        
        if ($diff->invert === 0) {
            return true;
        } else {
            return false;
        }
    }
    
    /**
     * @return User|null
     */
    function getUser(): ?User
    {
        return $this->user;
    }
    
    /**
     * @param User $user
     * @return AccompanyingPeriod
     */
    function setUser(User $user): self
    {
        $this->user = $user;
        
        return $this;
    }

}