<?php
namespace App\Model\Table;

use Cake\ORM\RulesChecker;
use Cake\ORM\Table;
use Cake\Validation\Validator;
use Cake\ORM\TableRegistry;

/**
 * Documents Model
 *
 * @property \Cake\ORM\Association\BelongsTo $Materiels
 * @property \Cake\ORM\Association\BelongsTo $Suivis
 */
class DocumentsTable extends AppTable
{

    /**
     * Initialize method
     *
     * @param array $config
     *            The configuration for the Table.
     * @return void
     */
    public function initialize(array $config)
    {
        parent::initialize($config);
        
        $this->table('documents');
        $this->displayField('id');
        $this->primaryKey('id');
        
        $this->belongsTo('Materiels', [
            'foreignKey' => 'materiel_id',
            'joinType' => 'INNER'
        ]);
        $this->belongsTo('Suivis', [
            'foreignKey' => 'suivi_id',
            'joinType' => 'INNER'
        ]);
        
        $this->belongsTo('TypeDocuments', [
            'foreignKey' => 'type_document_id'
        ]);
    }

    /**
     * Default validation rules.
     *
     * @param \Cake\Validation\Validator $validator
     *            Validator instance.
     * @return \Cake\Validation\Validator
     */
    public function validationDefault(Validator $validator)
    {
        $validator->integer('id')->allowEmpty('id', 'create');
        
        $validator->allowEmpty('type_doc');
        
        $validator->allowEmpty('chemin_file');
        
        $validator->notEmpty('nom');
        
        $validator->allowEmpty('type_document_id');
        
        $validator->allowEmpty('description');
        
        $validator->allowEmpty('materiel_id');
        
        $validator->allowEmpty('photo');
        
        $validator->allowEmpty('suivi_id');
        
        return $validator;
    }

    /**
     * Returns a rules checker object that will be used for validating
     * application integrity.
     *
     * @param \Cake\ORM\RulesChecker $rules
     *            The rules object to be modified.
     * @return \Cake\ORM\RulesChecker
     */
    public function buildRules(RulesChecker $rules)
    {
        $config = TableRegistry::get('Configurations')->find()
            ->where([
            'id =' => 1
        ])
            ->first();
        
        $checkSizeDoc = function ($entity) {
            if (! empty($entity->get('chemin_file')['tmp_name'])) {
                $config = TableRegistry::get('Configurations')->find()
                    ->where([
                    'id =' => 1
                ])
                    ->first();
                $size = $entity->get('chemin_file')['size'];
                if ($size !== null) {
                    if ($size > $config->taille_max_doc)
                        return false;
                    else
                        return true;
                } else
                    return false;
            } else
                return true;
        };
        
        $checkPhoto = function ($entity) {
            if (! empty($entity->get('chemin_file')['tmp_name'])) {
                if ($entity->get('photo')) {
                    $extension = strtolower(pathinfo($entity->get('chemin_file')['name'], PATHINFO_EXTENSION));
                    return in_array($extension, [
                        'png',
                        'jpg',
                        'jpeg'
                    ]);
                } else
                    return true;
            } else
                return true;
        };
        
        $checkEditFile = function ($entity) {
            if (! $entity->get('edit')) {
                if (empty($entity->get('chemin_file')['tmp_name'])) {
                    return false;
                } else {
                    return true;
                }
            } else {
                return true;
            }
        };
        
        $rules->add($checkSizeDoc, [
            'errorField' => 'chemin_file',
            'message' => 'Le fichier ne peut pas avoir une taille supérieur à ' . substr($config->taille_max_doc / (1024 * 1024), 0, 4) . ' Mo.'
        ]);
        
        $rules->add($checkPhoto, [
            'errorField' => 'chemin_file',
            'message' => 'La photo doit etre au format png, jpg (ou jpeg).'
        ]);
        
        $rules->add($checkEditFile, [
            'errorField' => 'chemin_file',
            'message' => 'Un fichier doit être présent.'
        ]);
        
        return $rules;
    }

    /**
     * Custom Validation Rules
     */
    public function fileExtension($check, $extensions, $allowEmpty = false)
    {
        $file = current($check);
        if ($allowEmpty && empty($file['tmp_name'])) {
            return true;
        }
        $extension = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION));
        return in_array($extension, $extensions);
    }

    /**
     * CakePHP Model Functions
     */
    public function beforeSave($event, $entity, $options)
    {
        $file = $entity->get('chemin_file');
        if (! empty($file['tmp_name'])) {
            $extension = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION));
            $entity->set('type_doc', $extension);
        }
        
        return true;
    }

    /**
     * CakePHP Model Functions
     */
    public function afterSave($event, $entity, $options)
    {
        $file = $entity->get('chemin_file');
        if (! empty($file['tmp_name'])) {
            $extension = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION));
            if ($entity->get('photo')) {
                move_uploaded_file($file['tmp_name'], 'img' . DS . 'photos' . DS . $entity->get('id') . '.' . $extension);
            } else {
                move_uploaded_file($file['tmp_name'], 'files' . DS . $entity->get('id') . '.' . $extension);
            }
        }
    }

    /**
     * CakePHP Model Functions
     */
    public function afterDelete($event, $entity, $options)
    {
        $nomFichier = $entity->get('id') . '.' . $entity->get('type_doc');
        if ($entity->get('photo')) {
            unlink('img' . DS . 'photos' . DS . $nomFichier);
        } else {
            unlink('files' . DS . $nomFichier);
        }
    }
}