<?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 = $entity->get('chemin_file')['size'];
    			if(isset($size)) {
    				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);
    	}
    }

}