Add first valid expression ruler. Still not linked to scheduleds.

controllers/internals/ConditionalGroup.php

@@ -41,7 +41,9 @@ namespace controllers\internals;
                 'condition' => $condition,
             ];
 
-            if (!$this->validate_condition($condition))
+            $internal_ruler = new Ruler();
+            $valid_condition = $internal_ruler->validate_condition($condition, ['contact' => (object) ['datas' => (object) null]]);
+            if (!$valid_condition)
             {
                 return false;
             }
@@ -73,8 +75,10 @@ namespace controllers\internals;
                 'name' => $name,
                 'condition' => $condition,
             ];
-            
-            if (!$this->validate_condition($condition))
+
+            $internal_ruler = new Ruler();
+            $valid_condition = $internal_ruler->validate_condition($condition, ['contact' => (object) ['datas' => (object) null]]);
+            if (!$valid_condition)
             {
                 return false;
             }
@@ -102,11 +106,39 @@ namespace controllers\internals;
 
 
         /**
-         * Verify if a condition string is valid (i.e we can parse it without error)
+         * Gets the user's contacts that respects a condition
+         * @param int $id_user : User id
          * @param string $condition : Condition string to verify
          * @return bool
          */
-        public function validate_condition (string $condition) : bool
+        public function get_contacts_for_condition_and_user (int $id_user, string $condition) : bool
         {
+            $internal_contacts = new Contacts($this->bdd);
+            $contacts = $internal_contacts->gets_for_user($id_user);
+
+            $ruler = new Ruler();
+
+            foreach ($contacts as $key => $contact)
+            {
+                if ($contact['datas'] != null)
+                {
+                    $contact['datas'] = json_decode($contact['datas']);
+                }
+                else
+                {
+                    $contact['datas'] = new \stdClass();
+                }
+
+                $contact = (object) $contact;
+                
+                $datas = ['contact' => $contact];
+                $is_valid = $ruler->evaluate_condition($condition, $datas);
+                if (!$is_valid)
+                {
+                    unset($contacts[$key]);
+                }
+            }
+            
+            return $contacts;
         }
     }

controllers/internals/Contact.php

@@ -68,7 +68,7 @@ namespace controllers\internals;
          * @param string $datas : Contact datas
          * @return mixed bool|int : False if cannot create contact, id of the new contact else
          */
-        public function create($id_user, $number, $name, $datas)
+        public function create($id_user, $number, $name, ?string $datas = null)
         {
             $contact = [
                 'id_user' => $id_user,

controllers/internals/ExpressionProvider.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace controllers\internals;
+
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
+
+class ExpressionProvider implements ExpressionFunctionProviderInterface
+{
+    public function getFunctions()
+    {
+        return [
+            ExpressionFunction::fromPhp('is_null', 'exists'),
+            ExpressionFunction::fromPhp('mb_strtolower', 'lower'),
+            ExpressionFunction::fromPhp('mb_strtoupper', 'upper'),
+            ExpressionFunction::fromPhp('mb_substr', 'substr'),
+            ExpressionFunction::fromPhp('abs', 'abs'),
+            ExpressionFunction::fromPhp('strtotime', 'date'),
+        ];
+    }
+}

controllers/internals/Ruler.php

@@ -0,0 +1,75 @@
+<?php
+
+/*
+ * This file is part of RaspiSMS.
+ *
+ * (c) Pierre-Lin Bonnemaison <plebwebsas@gmail.com>
+ *
+ * This source file is subject to the GPL-3.0 license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace controllers\internals;
+use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
+use Symfony\Component\ExpressionLanguage\ExpressionFunction;
+
+    /**
+     * Class to analyse rules used by conditional groups
+     */
+    class Ruler extends \descartes\InternalController
+    {
+        private $expression_language;
+
+        /**
+         * Constructor
+         */
+        public function __construct ()
+        {
+            $this->expression_language = new ExpressionLanguage();
+
+            //Add custom functions
+            $this->expression_language->registerProvider(new ExpressionProvider());
+        }
+
+
+        /**
+         * Verify if a condition is valid. i.e we can evaluate it without error.
+         * @param string $condition : The condition to evaluate.
+         * @param array $datas : The datas to made available to condition
+         * @return bool : false if invalid, true else
+         */
+        public function validate_condition (string $condition, array $datas = []) : bool
+        {
+            try 
+            {
+                $this->expression_language->evaluate($condition, $datas);
+                return true;
+            }
+            catch (\Exception $e)
+            {
+                echo "Error : ";
+                echo $e->getMessage();
+                return false;
+            } 
+        }
+        
+        
+        /**
+         * Evaluate a condition
+         * @param string $condition : The condition to evaluate.
+         * @param array $datas : The datas to made available to condition
+         * @return ?bool : false if invalid, true else, null only on error
+         */
+        public function evaluate_condition (string $condition, array $datas = []) : ?bool
+        {
+            try 
+            {
+                $result = $this->expression_language->evaluate($condition, $datas);
+                return (bool) $result;
+            }
+            catch (\Exception $e)
+            {
+                return null;
+            } 
+        }
+    }