Add pairing between users

models/User.php

@@ -120,6 +120,61 @@ class User {
             return ["success" => false, "message" => "Erreur lors de la liaison."];
         }
     }
+    
+    // --- 4. RÉCUPÉRER LE STATUT DE PAIRAGE ---
+    public function getPairingStatus($user_id) {
+        // On récupère les infos de l'utilisateur et de son partenaire s'il existe
+        $query = "SELECT u1.pairing_code, u1.partner_id, u2.username AS partner_username 
+                FROM " . $this->table_name . " u1
+                LEFT JOIN " . $this->table_name . " u2 ON u1.partner_id = u2.id
+                WHERE u1.id = :user_id LIMIT 1";
+                
+        $stmt = $this->conn->prepare($query);
+        $stmt->bindParam(":user_id", $user_id);
+        $stmt->execute();
+
+        if ($stmt->rowCount() > 0) {
+            return ["success" => true, "data" => $stmt->fetch()];
+        }
+        return ["success" => false, "message" => "Utilisateur introuvable."];
+    }
+
+    // --- 5. CASSER LE LIEN (DÉLIAISON) ---
+    public function unlinkPartner($user_id) {
+        // 1. On cherche d'abord l'ID du partenaire actuel
+        $query = "SELECT partner_id FROM " . $this->table_name . " WHERE id = :user_id LIMIT 1";
+        $stmt = $this->conn->prepare($query);
+        $stmt->bindParam(":user_id", $user_id);
+        $stmt->execute();
+        
+        $user = $stmt->fetch();
+        if (!$user || is_null($user['partner_id'])) {
+            return ["success" => false, "message" => "Tu n'es lié à personne."];
+        }
+
+        $partner_id = $user['partner_id'];
+
+        try {
+            $this->conn->beginTransaction();
+
+            // On passe le partner_id à NULL pour les deux utilisateurs
+            $query1 = "UPDATE " . $this->table_name . " SET partner_id = NULL WHERE id = :user_id";
+            $stmt1 = $this->conn->prepare($query1);
+            $stmt1->bindParam(":user_id", $user_id);
+            $stmt1->execute();
+
+            $query2 = "UPDATE " . $this->table_name . " SET partner_id = NULL WHERE id = :partner_id";
+            $stmt2 = $this->conn->prepare($query2);
+            $stmt2->bindParam(":partner_id", $partner_id);
+            $stmt2->execute();
+
+            $this->conn->commit();
+            return ["success" => true, "message" => "Comptes déliés avec succès."];
+        } catch (Exception $e) {
+            $this->conn->rollBack();
+            return ["success" => false, "message" => "Erreur lors de la déliaison."];
+        }
+    }
 
     // --- UTILS / VALIDATIONS ---
     private function emailExists($email) {