<?php

namespace Chill\PersonBundle\Entity;

/*
 * 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/>.
 */

use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\Collection;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Criteria;
use Chill\MainBundle\Entity\Center;
use Chill\MainBundle\Entity\Country;
use Chill\PersonBundle\Entity\MaritalStatus;
use Chill\MainBundle\Entity\HasCenterInterface;
use Chill\MainBundle\Entity\Address;
use Symfony\Component\Validator\Context\ExecutionContextInterface;

/**
 * Person Class
 *
 * @ORM\Entity(repositoryClass="Chill\PersonBundle\Repository\PersonRepository")
 * @ORM\Table(name="chill_person_person",
 *     indexes={@ORM\Index(
 *          name="person_names",
 *          columns={"firstName", "lastName"}
 * )})
 *      sf4 check index name
 * @ORM\HasLifecycleCallbacks()
 */
class Person implements HasCenterInterface
{
    /**
     * The person's id
     * @var integer
     *
     * @ORM\Id
     * @ORM\Column(name="id", type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * The person's first name
     * @var string
     *
     * @ORM\Column(type="string", length=255)
     */
    private $firstName;

    /**
     * The person's last name
     * @var string
     *
     * @ORM\Column(type="string", length=255)
     */
    private $lastName;
    
    /**
     * @var Collection
     *
     * @ORM\OneToMany(
     *     targetEntity="Chill\PersonBundle\Entity\PersonAltName",
     *     mappedBy="person",
     *     cascade={"persist", "remove", "merge", "detach"},
     *     orphanRemoval=true)
     */
    private $altNames;

    /**
     * The person's birthdate
     * @var \DateTime
     *
     * @ORM\Column(type="date", nullable=true)
     */
    private $birthdate; //to change in birthdate

    /**
     * The person's place of birth
     * @var string
     *
     * @ORM\Column(type="string", length=255, name="place_of_birth")
     */
    private $placeOfBirth = '';

    /**
     * The person's country of birth
     * @var Country
     *
     * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\Country")
     *
     *     sf4 check: option inversedBy="birthsIn" return error mapping !!
     *
     * @ORM\JoinColumn(nullable=true)
     */
    private $countryOfBirth;

    /**
     * The person's nationality
     * @var Country
     *
     * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\Country")
     *
     *    sf4 check: option inversedBy="nationals" return error mapping !!
     *
     * @ORM\JoinColumn(nullable=true)
     */
    private $nationality;

    /**
     * The person's gender
     * @var string
     *
     * @ORM\Column(type="string", length=9, nullable=true)
     */
    private $gender;

    const MALE_GENDER = 'man';
    const FEMALE_GENDER = 'woman';
    const BOTH_GENDER = 'both';

    /**
     * The marital status of the person
     * @var MaritalStatus
     *
     * @ORM\ManyToOne(targetEntity="Chill\PersonBundle\Entity\MaritalStatus")
     * @ORM\JoinColumn(nullable=true)
     */
    private $maritalStatus;

    /**
     * Contact information for contacting the person
     * @var string
     *
     * @ORM\Column(type="text", nullable=true)
     */
    private $contactInfo = '';

    /**
     * The person's email
     * @var string
     *
     * @ORM\Column(type="text", nullable=true)
     */
    private $email = '';

    /**
     * The person's phonenumber
     * @var string
     *
     * @ORM\Column(type="text", length=40, nullable=true)
     */
    private $phonenumber = '';

    /**
     * The person's mobile phone number
     * @var string
     *
     * @ORM\Column(type="text", length=40, nullable=true)
     */
    private $mobilenumber = '';

    //TO-ADD caseOpeningDate
    //TO-ADD nativeLanguag

    /**
     * The person's spoken languages
     * @var ArrayCollection
     *
     * @ORM\ManyToMany(targetEntity="Chill\MainBundle\Entity\Language")
     * @ORM\JoinTable(
     *     name="persons_spoken_languages",
     *     joinColumns={@ORM\JoinColumn(name="person_id", referencedColumnName="id")},
     *     inverseJoinColumns={@ORM\JoinColumn(name="language_id", referencedColumnName="id")}
     * )
     */
    private $spokenLanguages;

    /**
     * The person's center
     * @var Center
     *
     * @ORM\ManyToOne(targetEntity="Chill\MainBundle\Entity\Center")
     * @ORM\JoinColumn(nullable=false)
     */
    private $center;

    /**
     * The person's accompanying periods (when the person was accompanied by the center)
     * @var ArrayCollection
     *
     * @ORM\OneToMany(
     *     targetEntity="Chill\PersonBundle\Entity\AccompanyingPeriod",
     *     mappedBy="person",
     *     cascade={"persist", "remove", "merge", "detach"})
     */
    private $accompanyingPeriods; //TO-CHANGE in accompanyingHistory

    /**
     * A remark over the person
     * @var string
     *
     * @ORM\Column(type="text")
     */
    private $memo = ''; // TO-CHANGE in remark

    /**
     * @var boolean
     * @deprecated
     *
     * @ORM\Column(type="boolean")
     */
    private $proxyAccompanyingPeriodOpenState = false; //TO-DELETE ?

    /**
     * Array where customfield's data are stored
     * @var array
     *
     * @ORM\Column(type="json_array")
     */
    private $cFData;

    /**
     * Addresses
     * @var Collection
     *
     * @ORM\ManyToMany(
     *     targetEntity="Chill\MainBundle\Entity\Address",
     *     cascade={"persist", "remove", "merge", "detach"})
     * @ORM\JoinTable(name="chill_person_persons_to_addresses")
     * @ORM\OrderBy({"validFrom" = "DESC"})
     */
    private $addresses;
    
    /**
     * @var string
     *
     * @ORM\Column(type="text", nullable=true)
     */
    private $fullnameCanonical;
    
    
    /**
     * Person constructor.
     *
     * @param \DateTime|null $opening
     */
    public function __construct(\DateTime $opening = null)
    {
        $this->accompanyingPeriods = new ArrayCollection();
        $this->spokenLanguages = new ArrayCollection();
        $this->addresses = new ArrayCollection();
        $this->altNames = new ArrayCollection();

        if ($opening === null) {
            $opening = new \DateTime();
        }

        $this->open(new AccompanyingPeriod($opening));
    }

    /**
     * @param AccompanyingPeriod $accompanyingPeriod
     * @uses AccompanyingPeriod::setPerson
     */
    public function addAccompanyingPeriod(AccompanyingPeriod $accompanyingPeriod)
    {
        $accompanyingPeriod->setPerson($this);
        $this->accompanyingPeriods->add($accompanyingPeriod);
    }
    
    /**
     * @param AccompanyingPeriod $accompanyingPeriod
     */
    public function removeAccompanyingPeriod(AccompanyingPeriod $accompanyingPeriod)
    {
        $this->accompanyingPeriods->remove($accompanyingPeriod);
    }

    /**
     * set the Person file as open at the given date.
     *
     * For updating a opening's date, you should update AccompanyingPeriod instance
     * directly.
     *
     * For closing a file, @see this::close
     *
     * To check if the Person and its accompanying period is consistent, use validation.
     *
     * @param AccompanyingPeriod $accompanyingPeriod
     */
    public function open(AccompanyingPeriod $accompanyingPeriod)
    {
        $this->proxyAccompanyingPeriodOpenState = true;
        $this->addAccompanyingPeriod($accompanyingPeriod);
    }

    /**
     * Set the Person file as closed at the given date.
     *
     * For update a closing date, you should update AccompanyingPeriod instance
     * directly.
     *
     * To check if the Person and its accompanying period are consistent, use validation.
     *
     * @param accompanyingPeriod
     * @throws \Exception if two lines of the accompanying period are open.
     */
    public function close(AccompanyingPeriod $accompanyingPeriod = null)
    {
        $this->proxyAccompanyingPeriodOpenState = false;
    }

    /**
     * Return the opened accompanying period.
     *
     * @return AccompanyingPeriod
     */
    public function getOpenedAccompanyingPeriod()
    {
        if ($this->isOpen() === false) {
            return null;
        }

        foreach ($this->accompanyingPeriods as $period) {
            if ($period->isOpen()) {
                return $period;
            }
        }
    }

    /**
     * Returns the opened accompanying period.
     *
     * @return AccompanyingPeriod
     * @deprecated since 1.1 use `getOpenedAccompanyingPeriod instead
     */
    public function getCurrentAccompanyingPeriod()
    {
        return $this->getOpenedAccompanyingPeriod();
    }

    /**
     * @return ArrayCollection
     */
    public function getAccompanyingPeriods()
    {
        return $this->accompanyingPeriods;
    }

    /**
     * Get the accompanying periods of a give person with the
     * chronological order.
     *
     * @return AccompanyingPeriod[]
     */
    public function getAccompanyingPeriodsOrdered()
    {
        $periods = $this->getAccompanyingPeriods()->toArray();

        //order by date :
        usort($periods, function($a, $b) {
            $dateA = $a->getOpeningDate();
            $dateB = $b->getOpeningDate();

            if ($dateA == $dateB) {
                $dateEA = $a->getClosingDate();
                $dateEB = $b->getClosingDate();

                if ($dateEA == $dateEB) {
                    return 0;
                }

                if ($dateEA < $dateEB) {
                    return -1;
                } else {
                    return +1;
                }
            }

            if ($dateA < $dateB) {
                return -1 ;
            } else {
                return 1;
            }
        });

        return $periods;
    }

    /**
     * check if the person is opened
     *
     * @return boolean
     */
    public function isOpen()
    {
        foreach ($this->getAccompanyingPeriods() as $period) {
            if ($period->isOpen()) {
                return true;
            }
        }

        return false;
    }

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

    /**
     * Set firstName
     *
     * @param string $firstName
     * @return Person
     */
    public function setFirstName($firstName)
    {
        $this->firstName = $firstName;

        return $this;
    }

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

    /**
     * Set lastName
     *
     * @param string $lastName
     * @return Person
     */
    public function setLastName($lastName)
    {
        $this->lastName = $lastName;

        return $this;
    }

    /**
     * Get lastName
     *
     * @return string
     */
    public function getLastName()
    {
        return $this->lastName;
    }
    
    /**
     * @return Collection
     */
    public function getAltNames(): Collection
    {
        return $this->altNames;
    }
    
    /**
     * @param Collection $altNames
     * @return $this
     */
    public function setAltNames(Collection $altNames)
    {
        $this->altNames = $altNames;
        
        return $this;
    }
    
    /**
     * @param PersonAltName $altName
     * @return $this
     */
    public function addAltName(PersonAltName $altName)
    {
        if (FALSE === $this->altNames->contains($altName)) {
            $this->altNames->add($altName);
            $altName->setPerson($this);
        }
        
        return $this;
    }
    
    /**
     * @param PersonAltName $altName
     * @return $this
     */
    public function removeAltName(PersonAltName $altName) 
    {
        if ($this->altNames->contains($altName)) {
            $altName->setPerson(null);
            $this->altNames->removeElement($altName);
        }
        
        return $this;
    }
    
    /**
     * Set birthdate
     *
     * @param \DateTime $birthdate
     * @return Person
     */
    public function setBirthdate($birthdate)
    {
        $this->birthdate = $birthdate;

        return $this;
    }

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

    /**
     * Set placeOfBirth
     *
     * @param string $placeOfBirth
     * @return Person
     */
    public function setPlaceOfBirth($placeOfBirth)
    {
        if ($placeOfBirth === null) {
            $placeOfBirth = '';
        }

        $this->placeOfBirth = $placeOfBirth;

        return $this;
    }

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

    /**
     * Set gender
     *
     * @param string $gender
     * @return Person
     */
    public function setGender($gender)
    {
        $this->gender = $gender;

        return $this;
    }

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

    /**
     * return gender as a Numeric form.
     * This is used for translations
     * @return int
     */
    public function getGenderNumeric()
    {
        if ($this->getGender() == self::FEMALE_GENDER) {
            return 1;
        } else {
            return 0;
        }
    }

    /**
     * Set memo
     *
     * @param string $memo
     * @return Person
     */
    public function setMemo($memo)
    {
        if ($memo === null) {
            $memo = '';
        }

        if ($this->memo !== $memo) {
            $this->memo = $memo;
        }

        return $this;
    }

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

    /**
     * Set maritalStatus
     *
     * @param MaritalStatus $maritalStatus
     * @return Person
     */
    public function setMaritalStatus(MaritalStatus $maritalStatus = null)
    {
        $this->maritalStatus = $maritalStatus;
        return $this;
    }

    /**
     * Get maritalStatus
     *
     * @return MaritalStatus
     */
    public function getMaritalStatus()
    {
        return $this->maritalStatus;
    }

    /**
      * Set contactInfo
      *
      * @param string $contactInfo
      * @return Person
      */
     public function setcontactInfo($contactInfo)
     {
         if ($contactInfo === null) {
             $contactInfo = '';
         }

         $this->contactInfo = $contactInfo;

         return $this;
     }

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

    /**
     * Set email
     *
     * @param string $email
     * @return Person
     */
    public function setEmail($email)
    {
        if ($email === null) {
            $email = '';
        }

        $this->email = $email;

        return $this;
    }

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

    /**
     * Set countryOfBirth
     *
     * @param Chill\MainBundle\Entity\Country $countryOfBirth
     * @return Person
     */
    public function setCountryOfBirth(Country $countryOfBirth = null)
    {
        $this->countryOfBirth = $countryOfBirth;
        return $this;
    }

    /**
     * Get countryOfBirth
     *
     * @return Chill\MainBundle\Entity\Country
     */
    public function getCountryOfBirth()
    {
        return $this->countryOfBirth;
    }

    /**
     * Set nationality
     *
     * @param Chill\MainBundle\Entity\Country $nationality
     * @return Person
     */
    public function setNationality(Country $nationality = null)
    {
        $this->nationality = $nationality;

        return $this;
    }

    /**
     * Get nationality
     *
     * @return Chill\MainBundle\Entity\Country
     */
    public function getNationality()
    {
        return $this->nationality;
    }
    
    /**
     * @return string
     */
    public function getLabel()
    {
        return $this->getFirstName()." ".$this->getLastName();
    }

    /**
     * Get center
     *
     * @return Center
     */
    public function getCenter()
    {
        return $this->center;
    }

    /**
     * Set the center
     *
     * @param Center $center
     * @return \Chill\PersonBundle\Entity\Person
     */
    public function setCenter(Center $center)
    {
        $this->center = $center;
        return $this;
    }

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

        return $this;
    }

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

    /**
     * Set phonenumber
     *
     * @param string $phonenumber
     * @return Person
     */
    public function setPhonenumber($phonenumber = '')
    {
        $this->phonenumber = $phonenumber;

        return $this;
    }

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

    /**
     * Set mobilenumber
     *
     * @param string $mobilenumber
     * @return Person
     */
    public function setMobilenumber($mobilenumber = '')
    {
        $this->mobilenumber = $mobilenumber;

        return $this;
    }

    /**
     * Get mobilenumber
     *
     * @return string
     */
    public function getMobilenumber()
    {
        return $this->mobilenumber;
    }
    
    /**
     * @return string
     */
    public function __toString()
    {
        return $this->getLabel();
    }

    /**
     * Set spokenLanguages
     *
     * @param type $spokenLanguages
     * @return Person
     */
    public function setSpokenLanguages($spokenLanguages)
    {
        $this->spokenLanguages = $spokenLanguages;

        return $this;
    }

    /**
     * Get spokenLanguages
     *
     * @return ArrayCollection
     */
    public function getSpokenLanguages()
    {
        return $this->spokenLanguages;
    }
    
    /**
     * @param Address $address
     * @return $this
     */
    public function addAddress(Address $address)
    {
        $this->addresses[] = $address;

        return $this;
    }
    
    /**
     * @param Address $address
     */
    public function removeAddress(Address $address)
    {
        $this->addresses->removeElement($address);
    }

    /**
     * By default, the addresses are ordered by date, descending (the most
     * recent first)
     *
     * @return \Chill\MainBundle\Entity\Address[]
     */
    public function getAddresses()
    {
        return $this->addresses;
    }
    
    /**
     * @param \DateTime|null $date
     * @return null
     */
    public function getLastAddress(\DateTime $date = null)
    {
        if ($date === null) {
            $date = new \DateTime('now');
        }

        $addresses = $this->getAddresses();

        if ($addresses == null) {

            return null;
        }

        return $addresses->first();
    }

    /**
     * Validation callback that checks if the accompanying periods are valid
     *
     * This method add violation errors.
     */
    public function isAccompanyingPeriodValid(ExecutionContextInterface $context)
    {
        $r = $this->checkAccompanyingPeriodsAreNotCollapsing();

        if ($r !== true) {
            if ($r['result'] === self::ERROR_PERIODS_ARE_COLLAPSING) {
                $context->buildViolation('Two accompanying periods have days in commun')
                    ->atPath('accompanyingPeriods')
                    ->addViolation();
            }

            if ($r['result'] === self::ERROR_ADDIND_PERIOD_AFTER_AN_OPEN_PERIOD) {
                $context->buildViolation('A period is opened and a period is added after it')
                    ->atPath('accompanyingPeriods')
                    ->addViolation();
            }
        }
    }

    /**
     * Return true if the person has two addresses with the
     * same validFrom date (in format 'Y-m-d')
     */
    public function hasTwoAdressWithSameValidFromDate()
    {
        $validYMDDates = array();

        foreach ($this->addresses as $ad) {
            $validDate = $ad->getValidFrom()->format('Y-m-d');

            if (in_array($validDate, $validYMDDates)) {
                return true;
            }
            $validYMDDates[] = $validDate;
        }

        return false;
    }

    /**
     * Validation callback that checks if the addresses are valid (do not have
     * two addresses with the same validFrom date)
     *
     * This method add violation errors.
     */
    public function isAddressesValid(ExecutionContextInterface $context)
    {
        if ($this->hasTwoAdressWithSameValidFromDate()) {
            $context
                ->buildViolation('Two addresses has the same validFrom date')
                ->atPath('addresses')
                ->addViolation()
                ;
        }
    }


    const ERROR_PERIODS_ARE_COLLAPSING = 1; // when two different periods
    // have days in commun
    const ERROR_ADDIND_PERIOD_AFTER_AN_OPEN_PERIOD = 2; // where there exist
    // a period opened and another one after it

    /**
     * Function used for validation that check if the accompanying periods of
     * the person are not collapsing (i.e. have not shared days) or having
     * a period after an open period.
     *
     * @return true | array True if the accompanying periods are not collapsing,
     * an array with data for displaying the error
     */
    public function checkAccompanyingPeriodsAreNotCollapsing()
    {
        $periods = $this->getAccompanyingPeriodsOrdered();
        $periodsNbr = sizeof($periods);
        $i = 0;

        while($i < $periodsNbr - 1) {
            $periodI = $periods[$i];
            $periodAfterI = $periods[$i + 1];

            if($periodI->isOpen()) {
                return array(
                    'result' => self::ERROR_ADDIND_PERIOD_AFTER_AN_OPEN_PERIOD,
                    'dateOpening' => $periodAfterI->getOpeningDate(),
                    'dateClosing' => $periodAfterI->getClosingDate(),
                    'date' => $periodI->getOpeningDate()
                );
            } elseif ($periodI->getClosingDate() >= $periodAfterI->getOpeningDate()) {
                return array(
                    'result' => self::ERROR_PERIODS_ARE_COLLAPSING,
                    'dateOpening' => $periodI->getOpeningDate(),

                    'dateClosing' => $periodI->getClosingDate(),
                    'date' => $periodAfterI->getOpeningDate()
                );
            }
            $i++;
        }

        return true;
    }
}