[ios] predownload and set tajikistan map

iphone/Maps/Classes/MapsAppDelegate.mm

@@ -109,11 +109,7 @@ using namespace osm_auth_ios;
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
   NSLog(@"application:didFinishLaunchingWithOptions: %@", launchOptions);
 
-  [FileManagerHelper copyProjectFileToDocumentsWithFileName:@"Tajikistan"
-                                                  fileExtension:@"mwm"
-                                                  toSubdirectory:@"240429"];
-
-  GetFramework().LoadMapsSync();
+  [self setTajikistanMap];
   
   [HttpThreadImpl setDownloadIndicatorProtocol:self];
 
@@ -267,6 +263,20 @@ using namespace osm_auth_ios;
   if (!isInBounds) [MapViewController setViewportToDushanbe];
 }
 
+- (void) setTajikistanMap {
+  BOOL fileExists = [FileManagerHelper fileExistsInDocumentsWithSubdirectory:@"240429"
+                                                                   fileName:@"Tajikistan"
+                                                             fileExtension:@"mwm"];
+  
+  if (!fileExists) {
+    [FileManagerHelper copyProjectFileToDocumentsWithFileName:@"Tajikistan"
+                                                    fileExtension:@"mwm"
+                                                    toSubdirectory:@"240429"];
+
+    GetFramework().LoadMapsSync();
+  }
+}
+
 BOOL isLocationInBounds1(ms::LatLon location, ms::LatLon topLeft, ms::LatLon bottomRight) {
   return (location.m_lat <= topLeft.m_lat &&
           location.m_lat >= bottomRight.m_lat &&

iphone/Maps/Tourism/Utils/FileManagerUtils.swift

@@ -38,5 +38,20 @@ import Foundation
           }
       }
   }
+  
+  @objc static func fileExistsInDocuments(subdirectory: String, fileName: String, fileExtension: String) -> Bool {
+      let fileManager = FileManager.default
+      
+      guard let documentsDirectory = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first else {
+          print("Could not access Documents directory.")
+          return false
+      }
+      
+      let subdirectoryURL = documentsDirectory.appendingPathComponent(subdirectory)
+      let fileURL = subdirectoryURL.appendingPathComponent("\(fileName).\(fileExtension)")
+      
+      return fileManager.fileExists(atPath: fileURL.path)
+  }
+  
 }