more complex route

SatelliteProvider.IntegrationTests/Program.cs

@@ -14,7 +14,7 @@ class Program
         using var httpClient = new HttpClient
         {
             BaseAddress = new Uri(apiUrl),
-            Timeout = TimeSpan.FromSeconds(60)
+            Timeout = TimeSpan.FromMinutes(15)
         };
 
         try
@@ -36,6 +36,8 @@ class Program
 
             await RouteTests.RunRouteWithRegionProcessingAndStitching(httpClient);
 
+            await RouteTests.RunComplexRouteWithStitching(httpClient);
+
             Console.WriteLine();
             Console.WriteLine("=========================");
             Console.WriteLine("All tests completed successfully!");

SatelliteProvider.IntegrationTests/RouteTests.cs

@@ -181,7 +181,7 @@ public static class RouteTests
         }
 
         Console.WriteLine("Step 2: Waiting for route maps to be ready");
-        Console.WriteLine("  (Service is processing regions and stitching automatically)");
+        Console.WriteLine("  (Service is processing regions SEQUENTIALLY to avoid API throttling)");
         Console.WriteLine();
 
         RouteResponseModel? finalRoute = null;
@@ -283,5 +283,224 @@ public static class RouteTests
         Console.WriteLine();
         Console.WriteLine("✓ Route with Region Processing and Stitching Test: PASSED");
     }
+
+    public static async Task RunComplexRouteWithStitching(HttpClient httpClient)
+    {
+        Console.WriteLine();
+        Console.WriteLine("Test: Complex Route with 10 Points - Region Processing and Stitching");
+        Console.WriteLine("=======================================================================");
+        Console.WriteLine();
+
+        var routeId = Guid.NewGuid();
+        var request = new CreateRouteRequest
+        {
+            Id = routeId,
+            Name = "Complex Route with 10 Points",
+            Description = "Test route with 10 action points for complex map stitching",
+            RegionSizeMeters = 300.0,
+            ZoomLevel = 18,
+            RequestMaps = true,
+            Points = new List<RoutePointInput>
+            {
+                new() { Latitude = 48.276067180586544, Longitude = 37.38445758819581 },
+                new() { Latitude = 48.27074009522731, Longitude = 37.374029159545906 },
+                new() { Latitude = 48.263312668696855, Longitude = 37.37707614898682 },
+                new() { Latitude = 48.26539817051818, Longitude = 37.36587524414063 },
+                new() { Latitude = 48.25851283439989, Longitude = 37.35952377319337 },
+                new() { Latitude = 48.254426906081555, Longitude = 37.374801635742195 },
+                new() { Latitude = 48.25914140977405, Longitude = 37.39068031311036 },
+                new() { Latitude = 48.25354110233028, Longitude = 37.401752471923835 },
+                new() { Latitude = 48.25902712391726, Longitude = 37.416257858276374 },
+                new() { Latitude = 48.26828345053738, Longitude = 37.402009963989265 }
+            }
+        };
+
+        Console.WriteLine("Step 1: Creating complex route with RequestMaps=true");
+        Console.WriteLine($"  Action Points: {request.Points.Count}");
+        Console.WriteLine($"  Region Size: {request.RegionSizeMeters}m");
+        Console.WriteLine($"  Zoom Level: {request.ZoomLevel}");
+        Console.WriteLine($"  Request Maps: {request.RequestMaps}");
+        Console.WriteLine();
+        Console.WriteLine("Route Path:");
+        for (int i = 0; i < request.Points.Count; i++)
+        {
+            Console.WriteLine($"  {i + 1}. ({request.Points[i].Latitude}, {request.Points[i].Longitude})");
+        }
+        Console.WriteLine();
+
+        var routeResponse = await httpClient.PostAsJsonAsync("/api/satellite/route", request);
+        
+        if (!routeResponse.IsSuccessStatusCode)
+        {
+            var errorContent = await routeResponse.Content.ReadAsStringAsync();
+            throw new Exception($"Route creation failed: {routeResponse.StatusCode} - {errorContent}");
+        }
+
+        var route = await routeResponse.Content.ReadFromJsonAsync<RouteResponseModel>(JsonOptions);
+        
+        if (route == null)
+        {
+            throw new Exception("No route data returned");
+        }
+
+        Console.WriteLine($"✓ Route created with {route.TotalPoints} total points");
+        Console.WriteLine($"  Distance: {route.TotalDistanceMeters:F2}m");
+        Console.WriteLine($"  Request Maps: {route.RequestMaps}");
+        Console.WriteLine($"  Maps Ready: {route.MapsReady}");
+        Console.WriteLine();
+
+        var startPoints = route.Points.Count(p => p.PointType == "start");
+        var endPoints = route.Points.Count(p => p.PointType == "end");
+        var actionPoints = route.Points.Count(p => p.PointType == "action");
+        var intermediatePoints = route.Points.Count(p => p.PointType == "intermediate");
+
+        Console.WriteLine("Point Type Distribution:");
+        Console.WriteLine($"  Start: {startPoints}");
+        Console.WriteLine($"  Action: {actionPoints}");
+        Console.WriteLine($"  Intermediate: {intermediatePoints}");
+        Console.WriteLine($"  End: {endPoints}");
+        Console.WriteLine();
+
+        if (startPoints != 1)
+        {
+            throw new Exception($"Expected 1 start point, got {startPoints}");
+        }
+
+        if (endPoints != 1)
+        {
+            throw new Exception($"Expected 1 end point, got {endPoints}");
+        }
+
+        if (actionPoints != 8)
+        {
+            throw new Exception($"Expected 8 action points (excluding start/end), got {actionPoints}");
+        }
+
+        if (!route.RequestMaps)
+        {
+            throw new Exception("Expected RequestMaps to be true");
+        }
+
+        if (route.MapsReady)
+        {
+            throw new Exception("Expected MapsReady to be false initially");
+        }
+
+        Console.WriteLine("Step 2: Waiting for complex route maps to be ready");
+        Console.WriteLine("  (Processing 56 regions SEQUENTIALLY to avoid API throttling)");
+        Console.WriteLine("  (This will take several minutes as each region is processed one at a time)");
+        Console.WriteLine();
+
+        RouteResponseModel? finalRoute = null;
+        int maxAttempts = 240;
+        int pollInterval = 3000;
+        
+        for (int attempt = 0; attempt < maxAttempts; attempt++)
+        {
+            await Task.Delay(pollInterval);
+            
+            var getResponse = await httpClient.GetAsync($"/api/satellite/route/{routeId}");
+            
+            if (!getResponse.IsSuccessStatusCode)
+            {
+                throw new Exception($"Failed to get route status: {getResponse.StatusCode}");
+            }
+
+            var currentRoute = await getResponse.Content.ReadFromJsonAsync<RouteResponseModel>(JsonOptions);
+            
+            if (currentRoute == null)
+            {
+                throw new Exception("No route returned");
+            }
+
+            if (currentRoute.MapsReady)
+            {
+                finalRoute = currentRoute;
+                Console.WriteLine($"✓ Complex route maps ready in approximately {attempt * pollInterval / 1000}s");
+                break;
+            }
+
+            if (attempt % 10 == 0)
+            {
+                Console.WriteLine($"  Waiting... (attempt {attempt + 1}/{maxAttempts})");
+            }
+
+            if (attempt == maxAttempts - 1)
+            {
+                throw new Exception($"Timeout: Complex route maps did not become ready in {maxAttempts * pollInterval / 1000}s");
+            }
+        }
+
+        if (finalRoute == null)
+        {
+            throw new Exception("Final route is null");
+        }
+
+        Console.WriteLine();
+
+        Console.WriteLine("Step 3: Verifying generated files");
+        
+        if (string.IsNullOrEmpty(finalRoute.CsvFilePath))
+        {
+            throw new Exception("CSV file path is null or empty");
+        }
+
+        if (string.IsNullOrEmpty(finalRoute.SummaryFilePath))
+        {
+            throw new Exception("Summary file path is null or empty");
+        }
+
+        if (string.IsNullOrEmpty(finalRoute.StitchedImagePath))
+        {
+            throw new Exception("Stitched image path is null or empty");
+        }
+
+        if (!File.Exists(finalRoute.CsvFilePath))
+        {
+            throw new Exception($"CSV file not found: {finalRoute.CsvFilePath}");
+        }
+
+        if (!File.Exists(finalRoute.SummaryFilePath))
+        {
+            throw new Exception($"Summary file not found: {finalRoute.SummaryFilePath}");
+        }
+
+        if (!File.Exists(finalRoute.StitchedImagePath))
+        {
+            throw new Exception($"Stitched image not found: {finalRoute.StitchedImagePath}");
+        }
+
+        var csvLines = await File.ReadAllLinesAsync(finalRoute.CsvFilePath);
+        var uniqueTileCount = csvLines.Length - 1;
+
+        var stitchedInfo = new FileInfo(finalRoute.StitchedImagePath);
+
+        Console.WriteLine("Files Generated:");
+        Console.WriteLine($"  ✓ CSV: {Path.GetFileName(finalRoute.CsvFilePath)} ({uniqueTileCount} tiles)");
+        Console.WriteLine($"  ✓ Summary: {Path.GetFileName(finalRoute.SummaryFilePath)}");
+        Console.WriteLine($"  ✓ Stitched Map: {Path.GetFileName(finalRoute.StitchedImagePath)} ({stitchedInfo.Length / 1024:F2} KB)");
+        Console.WriteLine();
+
+        Console.WriteLine("Route Summary:");
+        Console.WriteLine($"  Route ID: {finalRoute.Id}");
+        Console.WriteLine($"  Total Points: {finalRoute.TotalPoints}");
+        Console.WriteLine($"  Action Points: {actionPoints}");
+        Console.WriteLine($"  Distance: {finalRoute.TotalDistanceMeters:F2}m");
+        Console.WriteLine($"  Unique Tiles: {uniqueTileCount}");
+        Console.WriteLine($"  Maps Ready: {finalRoute.MapsReady}");
+        Console.WriteLine();
+        
+        if (uniqueTileCount < 10)
+        {
+            throw new Exception($"Expected at least 10 unique tiles for complex route, got {uniqueTileCount}");
+        }
+
+        if (stitchedInfo.Length < 1024)
+        {
+            throw new Exception($"Stitched image seems too small: {stitchedInfo.Length} bytes");
+        }
+
+        Console.WriteLine("✓ Complex Route with 10 Points Test: PASSED");
+    }
 }
 

SatelliteProvider.Services/GoogleMapsDownloaderV2.cs

@@ -52,13 +52,31 @@ public class GoogleMapsDownloaderV2
         {
             var str = JsonConvert.SerializeObject(new { mapType = "satellite" });
             var response = await httpClient.PostAsync(url, new StringContent(str));
+            
+            if (!response.IsSuccessStatusCode)
+            {
+                var errorBody = await response.Content.ReadAsStringAsync();
+                _logger.LogError("Failed to get session token. Status: {StatusCode}, Response: {Response}", 
+                    response.StatusCode, errorBody);
+            }
+            
             response.EnsureSuccessStatusCode();
             var sessionResponse = await response.Content.ReadFromJsonAsync<SessionResponse>();
             return sessionResponse?.Session;
         }
+        catch (TaskCanceledException ex)
+        {
+            _logger.LogError(ex, "Session token request cancelled or timed out");
+            throw;
+        }
+        catch (HttpRequestException ex)
+        {
+            _logger.LogError(ex, "HTTP request failed while getting session token. StatusCode: {StatusCode}", ex.StatusCode);
+            throw;
+        }
         catch (Exception e)
         {
-            _logger.LogError(e, "Failed to get session token");
+            _logger.LogError(e, "Unexpected error getting session token");
             throw;
         }
     }
@@ -92,6 +110,14 @@ public class GoogleMapsDownloaderV2
             httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(USER_AGENT);
 
             var response = await httpClient.GetAsync(url, token);
+            
+            if (!response.IsSuccessStatusCode)
+            {
+                var errorBody = await response.Content.ReadAsStringAsync(token);
+                _logger.LogError("Single tile download failed. Tile: ({X}, {Y}), Status: {StatusCode}, Response: {Response}", 
+                    tileX, tileY, response.StatusCode, errorBody);
+            }
+            
             response.EnsureSuccessStatusCode();
 
             return await response.Content.ReadAsByteArrayAsync(token);
@@ -127,6 +153,7 @@ public class GoogleMapsDownloaderV2
     {
         int attempt = 0;
         int delay = BASE_RETRY_DELAY_SECONDS;
+        Exception? lastException = null;
 
         while (attempt < maxRetries)
         {
@@ -134,32 +161,66 @@ public class GoogleMapsDownloaderV2
             {
                 return await action();
             }
+            catch (TaskCanceledException ex)
+            {
+                _logger.LogError(ex, "Request was cancelled (timeout or explicit cancellation). Attempt {Attempt}/{Max}", attempt + 1, maxRetries);
+                throw;
+            }
+            catch (OperationCanceledException ex)
+            {
+                _logger.LogError(ex, "Operation was cancelled. Attempt {Attempt}/{Max}", attempt + 1, maxRetries);
+                throw;
+            }
             catch (HttpRequestException ex) when (ex.StatusCode == HttpStatusCode.TooManyRequests || ex.StatusCode == (HttpStatusCode)429)
             {
                 attempt++;
+                lastException = ex;
+                
                 if (attempt >= maxRetries)
                 {
-                    _logger.LogError("Rate limit exceeded after {Attempts} attempts", maxRetries);
+                    _logger.LogError(ex, "Rate limit (429) exceeded after {Attempts} attempts. This indicates Google Maps API throttling.", maxRetries);
-                    throw new RateLimitException($"Rate limit exceeded after {maxRetries} attempts");
+                    throw new RateLimitException($"Rate limit exceeded after {maxRetries} attempts. Google Maps API is throttling requests.");
                 }
 
                 delay = Math.Min(delay * 2, MAX_RETRY_DELAY_SECONDS);
-                _logger.LogWarning("Rate limited. Waiting {Delay}s before retry {Attempt}/{Max}", delay, attempt, maxRetries);
+                _logger.LogWarning("Rate limited (429 Too Many Requests). Waiting {Delay}s before retry {Attempt}/{Max}", delay, attempt, maxRetries);
                 await Task.Delay(TimeSpan.FromSeconds(delay), cancellationToken);
             }
+            catch (HttpRequestException ex) when (ex.StatusCode == HttpStatusCode.Forbidden)
+            {
+                _logger.LogError(ex, "Access forbidden (403). Check API key validity and permissions.");
+                throw;
+            }
+            catch (HttpRequestException ex) when (ex.StatusCode == HttpStatusCode.Unauthorized)
+            {
+                _logger.LogError(ex, "Unauthorized (401). API key is invalid or missing.");
+                throw;
+            }
             catch (HttpRequestException ex) when (ex.StatusCode >= HttpStatusCode.InternalServerError)
             {
                 attempt++;
+                lastException = ex;
+                
                 if (attempt >= maxRetries)
                 {
-                    _logger.LogError(ex, "Server error after {Attempts} attempts", maxRetries);
+                    _logger.LogError(ex, "Server error ({StatusCode}) after {Attempts} attempts", ex.StatusCode, maxRetries);
                     throw;
                 }
 
                 delay = Math.Min(delay * 2, MAX_RETRY_DELAY_SECONDS);
-                _logger.LogWarning("Server error. Waiting {Delay}s before retry {Attempt}/{Max}", delay, attempt, maxRetries);
+                _logger.LogWarning("Server error ({StatusCode}). Waiting {Delay}s before retry {Attempt}/{Max}", ex.StatusCode, delay, attempt, maxRetries);
                 await Task.Delay(TimeSpan.FromSeconds(delay), cancellationToken);
             }
+            catch (HttpRequestException ex)
+            {
+                _logger.LogError(ex, "HTTP request failed with status {StatusCode}. Message: {Message}", ex.StatusCode, ex.Message);
+                throw;
+            }
+        }
+
+        if (lastException != null)
+        {
+            throw new InvalidOperationException($"Retry logic exhausted after {maxRetries} attempts", lastException);
         }
         
         throw new InvalidOperationException("Retry logic failed unexpectedly");
@@ -229,6 +290,14 @@ public class GoogleMapsDownloaderV2
                         httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(USER_AGENT);
 
                         var response = await httpClient.GetAsync(url, token);
+                        
+                        if (!response.IsSuccessStatusCode)
+                        {
+                            var errorBody = await response.Content.ReadAsStringAsync(token);
+                            _logger.LogError("Tile download failed. Tile: ({X}, {Y}), Status: {StatusCode}, URL: {Url}, Response: {Response}", 
+                                x, y, response.StatusCode, url, errorBody);
+                        }
+                        
                         response.EnsureSuccessStatusCode();
 
                         return await response.Content.ReadAsByteArrayAsync(token);
@@ -242,14 +311,31 @@ public class GoogleMapsDownloaderV2
                     downloadedTiles.Add(new DownloadedTileInfoV2(
                         x, y, zoomLevel, tileCenter.Lat, tileCenter.Lon, filePath, tileSizeMeters));
                 }
+                catch (TaskCanceledException ex)
+                {
+                    _logger.LogError(ex, "Tile download cancelled for ({X}, {Y}). This may be due to HttpClient timeout or explicit cancellation.", x, y);
+                    throw;
+                }
+                catch (OperationCanceledException ex)
+                {
+                    _logger.LogError(ex, "Tile download operation cancelled for ({X}, {Y})", x, y);
+                    throw;
+                }
                 catch (RateLimitException ex)
                 {
-                    _logger.LogError(ex, "Rate limit exceeded for tile ({X}, {Y})", x, y);
+                    _logger.LogError(ex, "Rate limit exceeded for tile ({X}, {Y}). Google Maps API is throttling requests. Consider reducing concurrent requests or adding delays.", x, y);
+                    throw;
+                }
+                catch (HttpRequestException ex)
+                {
+                    _logger.LogError(ex, "HTTP request failed for tile ({X}, {Y}). StatusCode: {StatusCode}, Message: {Message}", 
+                        x, y, ex.StatusCode, ex.Message);
                     throw;
                 }
                 catch (Exception ex)
                 {
-                    _logger.LogError(ex, "Failed to download tile ({X}, {Y})", x, y);
+                    _logger.LogError(ex, "Unexpected error downloading tile ({X}, {Y}). Type: {ExceptionType}, Message: {Message}", 
+                        x, y, ex.GetType().Name, ex.Message);
                     throw;
                 }
             }

SatelliteProvider.Services/RegionService.cs

@@ -164,28 +164,54 @@ public class RegionService : IRegionService
             var duration = (DateTime.UtcNow - startTime).TotalSeconds;
             _logger.LogInformation("Region {RegionId} processing completed in {Duration:F2}s", id, duration);
         }
-        catch (OperationCanceledException) when (timeoutCts.IsCancellationRequested)
+        catch (TaskCanceledException ex) when (timeoutCts.IsCancellationRequested)
         {
             errorMessage = "Processing timed out after 5 minutes. Unable to download tiles within the time limit.";
-            _logger.LogError("Region {RegionId} processing timed out after 5 minutes", id);
+            _logger.LogError(ex, "Region {RegionId} processing timed out after 5 minutes", id);
+            await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
+        }
+        catch (TaskCanceledException ex) when (cancellationToken.IsCancellationRequested)
+        {
+            errorMessage = "Processing was cancelled externally (likely application shutdown).";
+            _logger.LogError(ex, "Region {RegionId} processing was cancelled externally", id);
+            await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
+        }
+        catch (TaskCanceledException ex)
+        {
+            errorMessage = $"Request cancelled or timed out: {ex.Message}. This may indicate HttpClient timeout or network issues.";
+            _logger.LogError(ex, "Region {RegionId} processing was cancelled (TaskCanceledException)", id);
+            await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
+        }
+        catch (OperationCanceledException ex) when (timeoutCts.IsCancellationRequested)
+        {
+            errorMessage = "Processing timed out after 5 minutes. Unable to download tiles within the time limit.";
+            _logger.LogError(ex, "Region {RegionId} processing timed out after 5 minutes", id);
+            await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
+        }
+        catch (OperationCanceledException ex)
+        {
+            errorMessage = $"Operation cancelled: {ex.Message}";
+            _logger.LogError(ex, "Region {RegionId} processing was cancelled", id);
             await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
         }
         catch (RateLimitException ex)
         {
             errorMessage = $"Rate limit exceeded: {ex.Message}. Google Maps API rate limit was reached and retries were exhausted.";
-            _logger.LogError(ex, "Rate limit exceeded for region {RegionId}", id);
+            _logger.LogError(ex, "Rate limit exceeded for region {RegionId}. Google is throttling requests. Consider reducing request rate.", id);
             await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
         }
         catch (HttpRequestException ex)
         {
-            errorMessage = $"Network error: {ex.Message}. Failed to download tiles from Google Maps.";
+            errorMessage = $"Network error (HTTP {ex.StatusCode}): {ex.Message}. Failed to download tiles from Google Maps.";
-            _logger.LogError(ex, "Network error processing region {RegionId}", id);
+            _logger.LogError(ex, "Network error processing region {RegionId}. StatusCode: {StatusCode}, Message: {Message}", 
+                id, ex.StatusCode, ex.Message);
             await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
         }
         catch (Exception ex)
         {
-            errorMessage = $"Unexpected error: {ex.Message}";
+            errorMessage = $"Unexpected error ({ex.GetType().Name}): {ex.Message}";
-            _logger.LogError(ex, "Failed to process region {RegionId}: {Message}", id, ex.Message);
+            _logger.LogError(ex, "Failed to process region {RegionId}. Type: {ExceptionType}, Message: {Message}", 
+                id, ex.GetType().Name, ex.Message);
             await HandleProcessingFailureAsync(id, region, startTime, tiles, tilesDownloaded, tilesReused, errorMessage);
         }
     }

SatelliteProvider.Services/RouteProcessingService.cs

@@ -1,3 +1,4 @@
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
@@ -14,18 +15,21 @@ public class RouteProcessingService : BackgroundService
 {
     private readonly IRouteRepository _routeRepository;
     private readonly IRegionRepository _regionRepository;
+    private readonly IServiceProvider _serviceProvider;
     private readonly StorageConfig _storageConfig;
     private readonly ILogger<RouteProcessingService> _logger;
-    private readonly TimeSpan _checkInterval = TimeSpan.FromSeconds(10);
+    private readonly TimeSpan _checkInterval = TimeSpan.FromSeconds(5);
 
     public RouteProcessingService(
         IRouteRepository routeRepository,
         IRegionRepository regionRepository,
+        IServiceProvider serviceProvider,
         IOptions<StorageConfig> storageConfig,
         ILogger<RouteProcessingService> logger)
     {
         _routeRepository = routeRepository;
         _regionRepository = regionRepository;
+        _serviceProvider = serviceProvider;
         _storageConfig = storageConfig.Value;
         _logger = logger;
     }
@@ -62,7 +66,7 @@ public class RouteProcessingService : BackgroundService
 
             try
             {
-                await ProcessRouteIfReadyAsync(route.Id, cancellationToken);
+                await ProcessRouteSequentiallyAsync(route.Id, cancellationToken);
             }
             catch (Exception ex)
             {
@@ -77,7 +81,7 @@ public class RouteProcessingService : BackgroundService
         return routes.Select(r => (r.Id, r.RequestMaps)).ToList();
     }
 
-    private async Task ProcessRouteIfReadyAsync(Guid routeId, CancellationToken cancellationToken)
+    private async Task ProcessRouteSequentiallyAsync(Guid routeId, CancellationToken cancellationToken)
     {
         var route = await _routeRepository.GetByIdAsync(routeId);
         if (route == null || !route.RequestMaps || route.MapsReady)
@@ -85,49 +89,84 @@ public class RouteProcessingService : BackgroundService
             return;
         }
 
-        var regionIds = await _routeRepository.GetRegionIdsByRouteAsync(routeId);
+        var routePointsList = (await _routeRepository.GetRoutePointsAsync(routeId)).ToList();
-        if (!regionIds.Any())
+        var regionIdsList = (await _routeRepository.GetRegionIdsByRouteAsync(routeId)).ToList();
+        
+        if (regionIdsList.Count == 0)
         {
-            _logger.LogWarning("Route {RouteId} has no regions linked", routeId);
+            using var scope = _serviceProvider.CreateScope();
+            var regionService = scope.ServiceProvider.GetRequiredService<Common.Interfaces.IRegionService>();
+            
+            _logger.LogInformation("Route {RouteId}: Starting sequential region processing for {PointCount} points", 
+                routeId, routePointsList.Count);
+            
+            var firstPoint = routePointsList.First();
+            var regionId = Guid.NewGuid();
+            
+            await regionService.RequestRegionAsync(
+                regionId,
+                firstPoint.Latitude,
+                firstPoint.Longitude,
+                route.RegionSizeMeters,
+                route.ZoomLevel,
+                stitchTiles: false);
+            
+            await _routeRepository.LinkRouteToRegionAsync(routeId, regionId);
+            
+            _logger.LogInformation("Route {RouteId}: Queued first region {RegionId} (1/{TotalPoints})", 
+                routeId, regionId, routePointsList.Count);
             return;
         }
         
-        var allCompleted = true;
+        var lastRegion = await _regionRepository.GetByIdAsync(regionIdsList.Last());
-        var anyFailed = false;
+        if (lastRegion == null)
-
-        foreach (var regionId in regionIds)
-        {
-            var region = await _regionRepository.GetByIdAsync(regionId);
-            if (region == null)
-            {
-                _logger.LogWarning("Region {RegionId} not found for route {RouteId}", regionId, routeId);
-                continue;
-            }
-
-            if (region.Status == "failed")
-            {
-                anyFailed = true;
-            }
-            else if (region.Status != "completed")
-            {
-                allCompleted = false;
-            }
-        }
-
-        if (!allCompleted)
         {
             return;
         }
         
-        if (anyFailed)
+        if (lastRegion.Status == "queued" || lastRegion.Status == "processing")
         {
-            _logger.LogWarning("Route {RouteId} has failed regions, skipping processing", routeId);
             return;
         }
         
-        _logger.LogInformation("All regions completed for route {RouteId}, starting final processing", routeId);
+        if (lastRegion.Status == "failed")
+        {
+            _logger.LogError("Route {RouteId}: Region {RegionId} failed. Stopping route processing.", 
+                routeId, lastRegion.Id);
             
-        await GenerateRouteMapsAsync(routeId, route, regionIds, cancellationToken);
+            route.MapsReady = false;
+            route.UpdatedAt = DateTime.UtcNow;
+            await _routeRepository.UpdateRouteAsync(route);
+            return;
+        }
+        
+        if (regionIdsList.Count < routePointsList.Count)
+        {
+            using var scope = _serviceProvider.CreateScope();
+            var regionService = scope.ServiceProvider.GetRequiredService<Common.Interfaces.IRegionService>();
+            
+            var nextPoint = routePointsList[regionIdsList.Count];
+            var regionId = Guid.NewGuid();
+            
+            await regionService.RequestRegionAsync(
+                regionId,
+                nextPoint.Latitude,
+                nextPoint.Longitude,
+                route.RegionSizeMeters,
+                route.ZoomLevel,
+                stitchTiles: false);
+            
+            await _routeRepository.LinkRouteToRegionAsync(routeId, regionId);
+            
+            _logger.LogInformation("Route {RouteId}: Queued next region {RegionId} ({CurrentRegion}/{TotalPoints})", 
+                routeId, regionId, regionIdsList.Count + 1, routePointsList.Count);
+            return;
+        }
+        
+        _logger.LogInformation("Route {RouteId}: All {RegionCount} regions completed, generating final maps", 
+            routeId, regionIdsList.Count);
+        
+        await GenerateRouteMapsAsync(routeId, route, regionIdsList, cancellationToken);
     }
 
     private async Task GenerateRouteMapsAsync(
@@ -353,8 +392,8 @@ public class RouteProcessingService : BackgroundService
                     
                     if (tileImage.Width != tileSizePixels || tileImage.Height != tileSizePixels)
                     {
-                        _logger.LogWarning("Tile {FilePath} has wrong size {Width}x{Height}, expected {Expected}x{Expected}",
+                        _logger.LogWarning("Tile {FilePath} has wrong size {Width}x{Height}, expected {ExpectedWidth}x{ExpectedHeight}",
-                            tile.FilePath, tileImage.Width, tileImage.Height, tileSizePixels);
+                            tile.FilePath, tileImage.Width, tileImage.Height, tileSizePixels, tileSizePixels);
                     }
                     
                     stitchedImage.Mutate(ctx => ctx.DrawImage(tileImage, new Point(destX, destY), 1f));

SatelliteProvider.Services/RouteService.cs

@@ -65,7 +65,7 @@ public class RouteService : IRouteService
                 totalDistance += distanceFromPrevious.Value;
             }
 
-            var pointType = isStart ? "start" : (isEnd ? "end" : "waypoint");
+            var pointType = isStart ? "start" : (isEnd ? "end" : "action");
             
             allPoints.Add(new RoutePointDto
             {
@@ -147,26 +147,8 @@ public class RouteService : IRouteService
 
         if (request.RequestMaps)
         {
-            _logger.LogInformation("Route {RouteId}: Requesting regions for all {Count} points", 
+            _logger.LogInformation("Route {RouteId}: Maps requested. Regions will be processed sequentially by background service.", 
-                request.Id, allPoints.Count);
+                request.Id);
-            
-            foreach (var point in allPoints)
-            {
-                var regionId = Guid.NewGuid();
-                
-                await _regionService.RequestRegionAsync(
-                    regionId,
-                    point.Latitude,
-                    point.Longitude,
-                    request.RegionSizeMeters,
-                    request.ZoomLevel,
-                    stitchTiles: false);
-                
-                await _routeRepository.LinkRouteToRegionAsync(request.Id, regionId);
-            }
-            
-            _logger.LogInformation("Route {RouteId}: {Count} regions requested", 
-                request.Id, allPoints.Count);
         }
 
         _logger.LogInformation("Route {RouteId} created successfully", request.Id);