fixed cad area and added dfx

public/userarea/cad_area_save_manual_area.php

@@ -50,6 +50,7 @@ try {
     $outerPolygon = $input['manual_polygon'] ?? null;
     $holes = $input['manual_holes'] ?? [];
     $roi = $input['roi'] ?? null;
+    $dxfContent = isset($input['dxf_content']) ? (string)$input['dxf_content'] : '';
 
     if ($areaMm2 <= 0) {
         jsonResponse([
@@ -106,6 +107,43 @@ try {
 
     $manualHolesJson = json_encode($holes);
 
+    $dxfFilename = null;
+    $dxfUrl = null;
+
+    if ($dxfContent !== '') {
+
+        if (strlen($dxfContent) > 5 * 1024 * 1024) {
+            jsonResponse([
+                'success' => false,
+                'message' => 'DXF troppo grande.'
+            ]);
+        }
+
+        if (strpos($dxfContent, 'SECTION') === false || strpos($dxfContent, 'EOF') === false) {
+            jsonResponse([
+                'success' => false,
+                'message' => 'Contenuto DXF non valido.'
+            ]);
+        }
+
+        $dxfDir = __DIR__ . '/uploads/cad_area/dxf/';
+
+        if (!is_dir($dxfDir)) {
+            mkdir($dxfDir, 0755, true);
+        }
+
+        $dxfFilename = 'profilo_' . $id . '_' . date('Ymd_His') . '_' . bin2hex(random_bytes(4)) . '.dxf';
+
+        if (file_put_contents($dxfDir . $dxfFilename, $dxfContent) === false) {
+            jsonResponse([
+                'success' => false,
+                'message' => 'Impossibile salvare il file DXF sul server.'
+            ]);
+        }
+
+        $dxfUrl = 'uploads/cad_area/dxf/' . $dxfFilename;
+    }
+
     $roiX = null;
     $roiY = null;
     $roiW = null;
@@ -152,6 +190,9 @@ try {
                 manual_holes_json = ?,
                 manual_status = 'completed',
 
+                dxf_filename = COALESCE(?, dxf_filename),
+                dxf_url = COALESCE(?, dxf_url),
+
                 scale_used = ?,
                 scale_detected = ?,
                 confidence = 'manual_validated',
@@ -188,6 +229,9 @@ try {
             $manualPolygonJson,
             $manualHolesJson,
 
+            $dxfFilename,
+            $dxfUrl,
+
             $mmPerPx,
             'manual',
 
@@ -227,6 +271,9 @@ try {
                 manual_holes_json = ?,
                 manual_status = 'completed',
 
+                dxf_filename = COALESCE(?, dxf_filename),
+                dxf_url = COALESCE(?, dxf_url),
+
                 scale_used = ?,
                 scale_detected = ?,
                 confidence = 'manual_validated',
@@ -264,6 +311,9 @@ try {
             $manualPolygonJson,
             $manualHolesJson,
 
+            $dxfFilename,
+            $dxfUrl,
+
             $mmPerPx,
             'manual',
 
@@ -285,7 +335,8 @@ try {
         'area_mm2' => $areaMm2,
         'area_cm2' => $areaCm2,
         'outer_area_mm2' => $outerAreaMm2,
-        'holes_area_mm2' => $holesAreaMm2
+        'holes_area_mm2' => $holesAreaMm2,
+        'dxf_url' => $dxfUrl
     ]);
 } catch (Throwable $e) {
     error_log('CAD manual area save error: ' . $e->getMessage());