Improve balancing entry with real account descriptions and separate rounding

- Added getAccountLabel method to fetch real account descriptions from chart of accounts
- Balancing entry now uses real account description for 4456700
- Balancing amounts are now rounded (no decimals)
- Added getBalancingRoundingEntry method for separate rounding line
- Rounding difference goes to 658000 (debit) or 758000 (credit) with real descriptions
- Improved double-entry bookkeeping with proper account labels and rounding

core/class/declarationtva_pdf.class.php

@@ -1866,6 +1866,12 @@ class DeclarationTVA_PDF
         $balancing_entry = $this->getBalancingEntry($declaration, $entries);
         if ($balancing_entry) {
             $entries[] = $balancing_entry;
+            
+            // Add rounding entry for the balancing difference
+            $balancing_rounding_entry = $this->getBalancingRoundingEntry($declaration, $entries);
+            if ($balancing_rounding_entry) {
+                $entries[] = $balancing_rounding_entry;
+            }
         }
         
         return $entries;
@@ -2067,9 +2073,12 @@ class DeclarationTVA_PDF
             return null;
         }
         
+        // Get real account description for 4456700
+        $account_label = $this->getAccountLabel('4456700');
+        
         $entry = array(
             'account_code' => '4456700',
-            'account_label' => 'TVA à payer',
+            'account_label' => $account_label,
             'entry_label' => $declaration->declaration_name,
             'debit' => '',
             'credit' => ''
@@ -2077,10 +2086,10 @@ class DeclarationTVA_PDF
         
         if ($difference < 0) {
             // More credits than debits, add debit to balance
-            $entry['debit'] = $this->formatAmountReal(abs($difference));
+            $entry['debit'] = $this->formatAmount(round(abs($difference)));
         } else {
             // More debits than credits, add credit to balance
-            $entry['credit'] = $this->formatAmountReal($difference);
+            $entry['credit'] = $this->formatAmount(round($difference));
         }
         
         return $entry;
@@ -2099,4 +2108,93 @@ class DeclarationTVA_PDF
         $amount_string = str_replace(',', '.', $amount_string);
         return (float)$amount_string;
     }
+    
+    /**
+     * Get account label from chart of accounts
+     *
+     * @param string $account_code Account code
+     * @return string Account label
+     */
+    private function getAccountLabel($account_code)
+    {
+        $sql = "SELECT label FROM " . MAIN_DB_PREFIX . "accounting_account 
+                WHERE account_number = '" . $this->db->escape($account_code) . "' 
+                AND entity = " . $this->entity . " 
+                AND active = 1 
+                LIMIT 1";
+        
+        $result = $this->db->query($sql);
+        if ($result && $this->db->num_rows($result) > 0) {
+            $obj = $this->db->fetch_object($result);
+            return $obj->label;
+        }
+        
+        // Fallback to default labels
+        switch ($account_code) {
+            case '4456700':
+                return 'TVA à payer';
+            case '658000':
+                return 'Charges exceptionnelles';
+            case '758000':
+                return 'Produits exceptionnels';
+            default:
+                return 'Compte ' . $account_code;
+        }
+    }
+    
+    /**
+     * Get balancing rounding entry for the difference between real and rounded amounts
+     *
+     * @param DeclarationTVA $declaration Declaration object
+     * @param array $entries Current journal entries
+     * @return array|null Journal entry
+     */
+    private function getBalancingRoundingEntry($declaration, $entries)
+    {
+        $total_debits = 0;
+        $total_credits = 0;
+        $total_debits_rounded = 0;
+        $total_credits_rounded = 0;
+        
+        // Calculate totals from existing entries (real values)
+        foreach ($entries as $entry) {
+            if (!empty($entry['debit'])) {
+                $total_debits += $this->parseAmount($entry['debit']);
+                $total_debits_rounded += round($this->parseAmount($entry['debit']));
+            }
+            if (!empty($entry['credit'])) {
+                $total_credits += $this->parseAmount($entry['credit']);
+                $total_credits_rounded += round($this->parseAmount($entry['credit']));
+            }
+        }
+        
+        $real_difference = $total_debits - $total_credits;
+        $rounded_difference = $total_debits_rounded - $total_credits_rounded;
+        $rounding_diff = $real_difference - $rounded_difference;
+        
+        // If rounding difference is very small, no entry needed
+        if (abs($rounding_diff) < 0.01) {
+            return null;
+        }
+        
+        $entry = array(
+            'account_code' => '',
+            'account_label' => '',
+            'entry_label' => $declaration->declaration_name,
+            'debit' => '',
+            'credit' => ''
+        );
+        
+        if ($rounding_diff < 0) {
+            $entry['account_code'] = '658000';
+            $entry['account_label'] = $this->getAccountLabel('658000');
+            $entry['debit'] = $this->formatAmountReal(abs($rounding_diff));
+        } else {
+            $entry['account_code'] = '758000';
+            $entry['account_label'] = $this->getAccountLabel('758000');
+            $entry['credit'] = $this->formatAmountReal($rounding_diff);
+        }
+        
+        return $entry;
+    }
 }