<?php

/*
 *
 * Copyright (C) 2014, Champs Libres Cooperative SCRLFS, <http://www.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\Search;

use Chill\MainBundle\Search\AbstractSearch;
use Chill\PersonBundle\Repository\PersonACLAwareRepositoryInterface;
use Chill\PersonBundle\Entity\Person;
use Chill\MainBundle\Search\SearchInterface;
use Chill\MainBundle\Search\ParsingException;
use Chill\MainBundle\Pagination\PaginatorFactory;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Chill\MainBundle\Form\Type\ChillDateType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
use Symfony\Component\Form\FormBuilderInterface;
use Chill\MainBundle\Search\HasAdvancedSearchFormInterface;
use Symfony\Component\Templating\EngineInterface;

class PersonSearch extends AbstractSearch implements HasAdvancedSearchFormInterface
{
    protected EngineInterface $templating;
    protected PaginatorFactory $paginatorFactory;
    protected PersonACLAwareRepositoryInterface $personACLAwareRepository;

    const NAME = "person_regular";

    private const POSSIBLE_KEYS = [
        '_default', 'firstname', 'lastname', 'birthdate', 'birthdate-before',
        'birthdate-after', 'gender', 'nationality'
    ];

    public function __construct(
        EngineInterface $templating,
        PaginatorFactory $paginatorFactory,
        PersonACLAwareRepositoryInterface $personACLAwareRepository
    ) {
        $this->templating = $templating;
        $this->paginatorFactory = $paginatorFactory;
        $this->personACLAwareRepository = $personACLAwareRepository;
    }

    /*
     * (non-PHPdoc)
     * @see \Chill\MainBundle\Search\SearchInterface::getOrder()
     */
    public function getOrder()
    {
        return 100;
    }

    /*
     * (non-PHPdoc)
     * @see \Chill\MainBundle\Search\SearchInterface::isActiveByDefault()
     */
    public function isActiveByDefault()
    {
        return true;
    }

    public function supports($domain, $format)
    {
        return 'person' === $domain;
    }

    /*
     * (non-PHPdoc)
     * @see \Chill\MainBundle\Search\SearchInterface::renderResult()
     */
    public function renderResult(array $terms, $start = 0, $limit = 50, array $options = array(), $format = 'html')
    {
        $total = $this->count($terms);
        $paginator = $this->paginatorFactory->create($total);

        if ($format === 'html') {
            return $this->templating->render('@ChillPerson/Person/list_with_period.html.twig',
                    array(
                        'persons' => $this->search($terms, $start, $limit, $options),
                        'pattern' => $this->recomposePattern(
                            $terms,
                            \array_filter(self::POSSIBLE_KEYS, fn($item) => $item !== '_default'),
                            $terms['_domain']
                        ),
                        'total' => $total,
                        'start' => $start,
                        'search_name' => self::NAME,
                        'preview' => $options[SearchInterface::SEARCH_PREVIEW_OPTION],
                        'paginator' => $paginator
                    ));
        } elseif ($format === 'json') {
            return [
                'results' => $this->search($terms, $start, $limit, \array_merge($options, [ 'simplify' => true ])),
                'pagination' => [
                    'more' => $paginator->hasNextPage()
                ]
            ];
        }
    }

    /**
     *
     * @param string $pattern
     * @param int $start
     * @param int $limit
     * @param array $options
     * @return Person[]
     */
    protected function search(array $terms, $start, $limit, array $options = array())
    {
        [
            '_default' => $default,
            'firstname' => $firstname,
            'lastname' => $lastname,
            'birthdate' => $birthdate,
            'birthdate-before' => $birthdateBefore,
            'birthdate-after' => $birthdateAfter,
            'gender' => $gender,
            'nationality' => $countryCode,

        ] = $terms + \array_fill_keys(self::POSSIBLE_KEYS, null);

        foreach (['birthdateBefore', 'birthdateAfter', 'birthdate'] as $v) {
            if (NULL !== ${$v}) {
                try {
                    ${$v} = new \DateTime(${$v});
                } catch (\Exception $e) {
                    throw new ParsingException('The date is '
                          . 'not parsable', 0, $e);
                }
            }
        }

        return $this->personACLAwareRepository
            ->findBySearchCriteria(
                $start,
                $limit,
                $options['simplify'] ?? false,
                $default,
                $firstname,
                $lastname,
                $birthdate,
                $birthdateBefore,
                $birthdateAfter,
                $gender,
                $countryCode,
            );
    }

    protected function count(array $terms): int
    {
        [
            '_default' => $default,
            'firstname' => $firstname,
            'lastname' => $lastname,
            'birthdate' => $birthdate,
            'birthdate-before' => $birthdateBefore,
            'birthdate-after' => $birthdateAfter,
            'gender' => $gender,
            'nationality' => $countryCode,

        ] = $terms + \array_fill_keys(self::POSSIBLE_KEYS, null);

        foreach (['birthdateBefore', 'birthdateAfter', 'birthdate'] as $v) {
            if (NULL !== ${$v}) {
                try {
                    ${$v} = new \DateTime(${$v});
                } catch (\Exception $e) {
                    throw new ParsingException('The date is '
                        . 'not parsable', 0, $e);
                }
            }
        }

        return $this->personACLAwareRepository
            ->countBySearchCriteria(
                $default,
                $firstname,
                $lastname,
                $birthdate,
                $birthdateBefore,
                $birthdateAfter,
                $gender,
                $countryCode,
            );
    }

    public function buildForm(FormBuilderInterface $builder)
    {
        $builder
            ->add('_default', TextType::class, [
                'label' => 'First name or Last name',
                'required' => false
            ])
            ->add('firstname', TextType::class, [
                'label' => 'First name',
                'required' => false
            ])
            ->add('lastname', TextType::class, [
                'label' => 'Last name',
                'required' => false
            ])
            ->add('birthdate-after', ChillDateType::class, [
                'label' => 'Birthdate after',
                'required' => false
            ])
            ->add('birthdate', ChillDateType::class, [
                'label' => 'Birthdate',
                'required' => false
            ])
            ->add('birthdate-before', ChillDateType::class, [
                'label' => 'Birthdate before',
                'required' => false
            ])
            ->add('gender', ChoiceType::class, [
                'choices' => [
                    'Man' => Person::MALE_GENDER,
                    'Woman' => Person::FEMALE_GENDER
                ],
                'label' => 'Gender',
                'required' => false
            ])
            ;
    }

    public function convertFormDataToQuery(array $data)
    {
        $string = '@person ';

        $string .= empty($data['_default']) ? '' : $data['_default'].' ';

        foreach(['firstname', 'lastname', 'gender'] as $key) {
            $string .= empty($data[$key]) ? '' : $key.':'.
                // add quote if contains spaces
                (strpos($data[$key], ' ') !== false ?  '"'.$data[$key].'"': $data[$key])
                .' ';
        }

        foreach (['birthdate', 'birthdate-before', 'birthdate-after'] as $key) {
            $string .= empty($data[$key]) ?
                ''
                :
                $key.':'.$data[$key]->format('Y-m-d').' '
                ;
        }

        return $string;
    }

    public function convertTermsToFormData(array $terms)
    {
        foreach(['firstname', 'lastname', 'gender', '_default']
            as $key) {
            $data[$key] = $terms[$key] ?? null;
        }

        // parse dates
        foreach (['birthdate', 'birthdate-before', 'birthdate-after'] as $key) {
            if (\array_key_exists($key, $terms)) {
                try {
                        $date = new \DateTime($terms[$key]);
                } catch (\Exception $ex) {
                        throw new ParsingException("The date for $key is "
                              . 'not parsable', 0, $ex);
                }
            }
            $data[$key] = $date ?? null;
        }

        return $data;
    }

    public function getAdvancedSearchTitle()
    {
        return 'Search within persons';
    }

    public static function getAlias(): string
    {
        return self::NAME;
    }


}