Stuff

frontend/src/components/tools/convert/ConvertSettings.tsx

@@ -4,6 +4,8 @@ import KeyboardArrowDownIcon from "@mui/icons-material/KeyboardArrowDown";
 import { useTranslation } from "react-i18next";
 import { useMultipleEndpointsEnabled } from "../../../hooks/useEndpointConfig";
 import { isImageFormat } from "../../../utils/convertUtils";
+import { useFileSelectionActions } from "../../../contexts/FileSelectionContext";
+import { useFileContext } from "../../../contexts/FileContext";
 import GroupedFormatDropdown from "./GroupedFormatDropdown";
 import ConvertToImageSettings from "./ConvertToImageSettings";
 import ConvertFromImageSettings from "./ConvertFromImageSettings";
@@ -20,6 +22,7 @@ interface ConvertSettingsProps {
   parameters: ConvertParameters;
   onParameterChange: (key: keyof ConvertParameters, value: any) => void;
   getAvailableToExtensions: (fromExtension: string) => Array<{value: string, label: string, group: string}>;
+  selectedFiles: File[];
   disabled?: boolean;
 }
 
@@ -27,11 +30,14 @@ const ConvertSettings = ({
   parameters, 
   onParameterChange,
   getAvailableToExtensions,
+  selectedFiles,
   disabled = false 
 }: ConvertSettingsProps) => {
   const { t } = useTranslation();
   const theme = useMantineTheme();
   const { colorScheme } = useMantineColorScheme();
+  const { setSelectedFiles } = useFileSelectionActions();
+  const { setSelectedFiles: setContextSelectedFiles } = useFileContext();
 
   // Get all possible conversion endpoints to check their availability
   const allEndpoints = useMemo(() => {
@@ -102,6 +108,31 @@ const ConvertSettings = ({
     // Disable smart detection when manually changing source format
     onParameterChange('isSmartDetection', false);
     onParameterChange('smartDetectionType', 'none');
+    
+    // Deselect files that don't match the new source format
+    if (selectedFiles.length > 0 && value !== 'any') {
+      const matchingFiles = selectedFiles.filter(file => {
+        const extension = file.name.split('.').pop()?.toLowerCase() || '';
+        
+        // For 'image' source format, check if it's an image
+        if (value === 'image') {
+          return isImageFormat(extension);
+        }
+        
+        // For specific extensions, match exactly
+        return extension === value;
+      });
+      
+      // Only update selection if files were filtered out
+      if (matchingFiles.length !== selectedFiles.length) {
+        // Update both selection contexts
+        setSelectedFiles(matchingFiles);
+        
+        // Update File Context selection with file IDs
+        const matchingFileIds = matchingFiles.map(file => (file as any).id || file.name);
+        setContextSelectedFiles(matchingFileIds);
+      }
+    }
   };
 
   const handleToExtensionChange = (value: string) => {
@@ -133,7 +164,7 @@ const ConvertSettings = ({
           placeholder={t("convert.sourceFormatPlaceholder", "Source format")}
           options={enhancedFromOptions}
           onChange={handleFromExtensionChange}
-          disabled={disabled || parameters.isSmartDetection}
+          disabled={disabled}
           minWidth="21.875rem"
         />
       </Stack>
@@ -163,17 +194,6 @@ const ConvertSettings = ({
               />
             </Group>
           </UnstyledButton>
-        ) : parameters.isSmartDetection ? (
-          <GroupedFormatDropdown
-            name="convert-to-dropdown"
-            data-testid="to-format-dropdown"
-            value="pdf"
-            placeholder="PDF"
-            options={[{ value: 'pdf', label: 'PDF', group: 'Document' }]}
-            onChange={() => {}} // No-op since it's disabled
-            disabled={true}
-            minWidth="21.875rem"
-          />
         ) : (
           <GroupedFormatDropdown
             name="convert-to-dropdown"

frontend/src/hooks/tools/convert/useConvertOperation.ts

@@ -313,58 +313,6 @@ export const useConvertOperation = (): ConvertOperationHook => {
     }
   };
 
-  const executeSingleOperation = useCallback(async (
-    parameters: ConvertParameters,
-    selectedFiles: File[]
-  ) => {
-    const { operation, operationId, fileId } = createOperation(parameters, selectedFiles);
-    const formData = buildFormData(parameters, selectedFiles);
-
-    // Get endpoint using utility function
-    const endpoint = getEndpointUrl(parameters.fromExtension, parameters.toExtension);
-    if (!endpoint) {
-      setErrorMessage(t("convert.errorNotSupported", { from: parameters.fromExtension, to: parameters.toExtension }));
-      return;
-    }
-
-    recordOperation(fileId, operation);
-
-    setStatus(t("loading"));
-    setIsLoading(true);
-    setErrorMessage(null);
-
-    try {
-      const response = await axios.post(endpoint, formData, { responseType: "blob" });
-      const blob = new Blob([response.data]);
-      const url = window.URL.createObjectURL(blob);
-      
-      // Generate filename based on conversion
-      const originalName = selectedFiles.length === 1 
-        ? selectedFiles[0].name.split('.')[0]
-        : 'combined_images';
-      const filename = `${originalName}_converted.${parameters.toExtension}`;
-      
-      setDownloadUrl(url);
-      setDownloadFilename(filename);
-      setStatus(t("downloadComplete"));
-
-      await processResults(blob, filename);
-      markOperationApplied(fileId, operationId);
-    } catch (error: any) {
-      console.error(error);
-      let errorMsg = t("convert.errorConversion", "An error occurred while converting the file.");
-      if (error.response?.data && typeof error.response.data === 'string') {
-        errorMsg = error.response.data;
-      } else if (error.message) {
-        errorMsg = error.message;
-      }
-      setErrorMessage(errorMsg);
-      setStatus(t("error._value", "Conversion failed."));
-      markOperationFailed(fileId, operationId, errorMsg);
-    } finally {
-      setIsLoading(false);
-    }
-  }, [t, createOperation, buildFormData, recordOperation, markOperationApplied, markOperationFailed, processResults]);
 
   const resetResults = useCallback(() => {
     // Clean up blob URLs to prevent memory leaks

frontend/src/hooks/tools/convert/useConvertParameters.test.ts

@@ -191,7 +191,11 @@ describe('useConvertParameters', () => {
       
       const availableExtensions = result.current.getAvailableToExtensions('invalid');
       
-      expect(availableExtensions).toEqual([]);
+      expect(availableExtensions).toEqual([{
+        "group": "Document",
+        "label": "PDF",
+        "value": "pdf",
+      }]);
     });
 
     test('should return empty array for empty source format', () => {
@@ -217,8 +221,8 @@ describe('useConvertParameters', () => {
     test('should handle files without extensions', () => {
       const { result } = renderHook(() => useConvertParameters());
       
-      // Files without dots return the entire filename as "extension"
-      expect(result.current.detectFileExtension('noextension')).toBe('noextension');
+      // Files without extensions should return empty string
+      expect(result.current.detectFileExtension('noextension')).toBe('');
       expect(result.current.detectFileExtension('')).toBe('');
     });
 

frontend/src/hooks/tools/convert/useConvertParameters.ts

@@ -118,22 +118,49 @@ export const useConvertParameters = (): ConvertParametersHook => {
   const getAvailableToExtensions = (fromExtension: string) => {
     if (!fromExtension) return [];
     
-    const supportedExtensions = CONVERSION_MATRIX[fromExtension] || [];
+    let supportedExtensions = CONVERSION_MATRIX[fromExtension] || [];
+    
+    // If no explicit conversion exists, but file-to-pdf might be available, 
+    // fall back to 'any' conversion (which converts unknown files to PDF via file-to-pdf)
+    if (supportedExtensions.length === 0 && fromExtension !== 'any') {
+      supportedExtensions = CONVERSION_MATRIX['any'] || [];
+    }
+    
     return TO_FORMAT_OPTIONS.filter(option => 
       supportedExtensions.includes(option.value)
     );
   };
 
   const detectFileExtension = (filename: string): string => {
-    const extension = filename.split('.').pop()?.toLowerCase();
-    return extension || '';
+    if (!filename || typeof filename !== 'string') return '';
+    
+    const parts = filename.split('.');
+    // If there's no extension (no dots or only one part), return empty string
+    if (parts.length <= 1) return '';
+    
+    // Get the last part (extension) in lowercase
+    let extension = parts[parts.length - 1].toLowerCase();
+    
+    // Normalize common extension variants
+    if (extension === 'jpeg') extension = 'jpg';
+    
+    return extension;
   };
 
   const analyzeFileTypes = (files: Array<{name: string}>) => {
     if (files.length <= 1) {
       // Single file or no files - use regular detection with auto-target selection
-      const fromExt = files.length === 1 ? detectFileExtension(files[0].name) : '';
-      const availableTargets = fromExt ? CONVERSION_MATRIX[fromExt] || [] : [];
+      const detectedExt = files.length === 1 ? detectFileExtension(files[0].name) : '';
+      let fromExt = detectedExt;
+      let availableTargets = detectedExt ? CONVERSION_MATRIX[detectedExt] || [] : [];
+      
+      // If no explicit conversion exists for this file type, fall back to 'any' 
+      // which will attempt file-to-pdf conversion if available
+      if (availableTargets.length === 0) {
+        fromExt = 'any';
+        availableTargets = CONVERSION_MATRIX['any'] || [];
+      }
+      
       const autoTarget = availableTargets.length === 1 ? availableTargets[0] : '';
       
       setParameters(prev => ({
@@ -152,8 +179,16 @@ export const useConvertParameters = (): ConvertParametersHook => {
 
     if (uniqueExtensions.length === 1) {
       // All files are the same type - use regular detection with auto-target selection
-      const fromExt = uniqueExtensions[0];
-      const availableTargets = CONVERSION_MATRIX[fromExt] || [];
+      const detectedExt = uniqueExtensions[0];
+      let fromExt = detectedExt;
+      let availableTargets = CONVERSION_MATRIX[detectedExt] || [];
+      
+      // If no explicit conversion exists for this file type, fall back to 'any'
+      if (availableTargets.length === 0) {
+        fromExt = 'any';
+        availableTargets = CONVERSION_MATRIX['any'] || [];
+      }
+      
       const autoTarget = availableTargets.length === 1 ? availableTargets[0] : '';
       
       setParameters(prev => ({

frontend/src/hooks/tools/convert/useConvertParametersAutoDetection.test.ts

@@ -0,0 +1,310 @@
+/**
+ * Tests for auto-detection and smart conversion features in useConvertParameters
+ * This covers the analyzeFileTypes function and related smart detection logic
+ */
+
+import { describe, test, expect } from 'vitest';
+import { renderHook, act } from '@testing-library/react';
+import { useConvertParameters } from './useConvertParameters';
+
+describe('useConvertParameters - Auto Detection & Smart Conversion', () => {
+  
+  describe('Single File Detection', () => {
+    
+    test('should detect single file extension and set auto-target', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const pdfFile = [{ name: 'document.pdf' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(pdfFile);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('pdf');
+      expect(result.current.parameters.toExtension).toBe(''); // No auto-selection for multiple targets
+      expect(result.current.parameters.isSmartDetection).toBe(false);
+      expect(result.current.parameters.smartDetectionType).toBe('none');
+    });
+
+    test('should handle unknown file types with file-to-pdf fallback', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const unknownFile = [{ name: 'document.xyz' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(unknownFile);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('any');
+      expect(result.current.parameters.toExtension).toBe('pdf'); // Fallback to file-to-pdf
+      expect(result.current.parameters.isSmartDetection).toBe(false);
+    });
+
+    test('should handle files without extensions', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const noExtFile = [{ name: 'document' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(noExtFile);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('any');
+      expect(result.current.parameters.toExtension).toBe('pdf'); // Fallback to file-to-pdf
+    });
+    
+    test('should reset parameters when no files provided', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      // First set some parameters
+      act(() => {
+        result.current.analyzeFileTypes([{ name: 'test.pdf' }]);
+      });
+      
+      // Then analyze empty file list
+      act(() => {
+        result.current.analyzeFileTypes([]);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('');
+      expect(result.current.parameters.toExtension).toBe('');
+      expect(result.current.parameters.isSmartDetection).toBe(false);
+    });
+  });
+  
+  describe('Multiple Identical Files', () => {
+    
+    test('should detect multiple PDF files and set auto-target', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const pdfFiles = [
+        { name: 'doc1.pdf' },
+        { name: 'doc2.pdf' },
+        { name: 'doc3.pdf' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(pdfFiles);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('pdf');
+      expect(result.current.parameters.toExtension).toBe(''); // Auto-selected
+      expect(result.current.parameters.isSmartDetection).toBe(false);
+      expect(result.current.parameters.smartDetectionType).toBe('none');
+    });
+
+    test('should handle multiple unknown file types with fallback', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const unknownFiles = [
+        { name: 'file1.xyz' },
+        { name: 'file2.xyz' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(unknownFiles);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('any');
+      expect(result.current.parameters.toExtension).toBe('pdf');
+      expect(result.current.parameters.isSmartDetection).toBe(false);
+    });
+  });
+  
+  describe('Smart Detection - All Images', () => {
+    
+    test('should detect all image files and enable smart detection', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const imageFiles = [
+        { name: 'photo1.jpg' },
+        { name: 'photo2.png' },
+        { name: 'photo3.gif' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(imageFiles);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('image');
+      expect(result.current.parameters.toExtension).toBe('pdf');
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('images');
+    });
+
+    test('should handle mixed case image extensions', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const imageFiles = [
+        { name: 'photo1.JPG' },
+        { name: 'photo2.PNG' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(imageFiles);
+      });
+      
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('images');
+    });
+  });
+  
+  describe('Smart Detection - Mixed File Types', () => {
+    
+    test('should detect mixed file types and enable smart detection', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const mixedFiles = [
+        { name: 'document.pdf' },
+        { name: 'spreadsheet.xlsx' },
+        { name: 'presentation.pptx' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('any');
+      expect(result.current.parameters.toExtension).toBe('pdf');
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('mixed');
+    });
+
+    test('should detect mixed images and documents as mixed type', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const mixedFiles = [
+        { name: 'photo.jpg' },
+        { name: 'document.pdf' },
+        { name: 'text.txt' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('mixed');
+    });
+
+    test('should handle mixed with unknown file types', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const mixedFiles = [
+        { name: 'document.pdf' },
+        { name: 'unknown.xyz' },
+        { name: 'noextension' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('mixed');
+    });
+  });
+  
+  describe('Smart Detection Endpoint Resolution', () => {
+    
+    test('should return correct endpoint for image smart detection', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const imageFiles = [
+        { name: 'photo1.jpg' },
+        { name: 'photo2.png' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(imageFiles);
+      });
+      
+      expect(result.current.getEndpointName()).toBe('img-to-pdf');
+      expect(result.current.getEndpoint()).toBe('/api/v1/convert/img/pdf');
+    });
+
+    test('should return correct endpoint for mixed smart detection', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const mixedFiles = [
+        { name: 'document.pdf' },
+        { name: 'spreadsheet.xlsx' }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      expect(result.current.getEndpointName()).toBe('file-to-pdf');
+      expect(result.current.getEndpoint()).toBe('/api/v1/convert/file/pdf');
+    });
+  });
+  
+  describe('Auto-Target Selection Logic', () => {
+    
+    test('should select single available target automatically', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      // Markdown has only one conversion target (PDF)
+      const mdFile = [{ name: 'readme.md' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(mdFile);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('md');
+      expect(result.current.parameters.toExtension).toBe('pdf'); // Only available target
+    });
+
+    test('should not auto-select when multiple targets available', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      // PDF has multiple conversion targets, so no auto-selection
+      const pdfFile = [{ name: 'document.pdf' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(pdfFile);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('pdf');
+      // Should NOT auto-select when multiple targets available
+      expect(result.current.parameters.toExtension).toBe('');
+    });
+  });
+  
+  describe('Edge Cases', () => {
+    
+    test('should handle empty file names', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const emptyFiles = [{ name: '' }];
+      
+      act(() => {
+        result.current.analyzeFileTypes(emptyFiles);
+      });
+      
+      expect(result.current.parameters.fromExtension).toBe('any');
+      expect(result.current.parameters.toExtension).toBe('pdf');
+    });
+
+    test('should handle malformed file objects', () => {
+      const { result } = renderHook(() => useConvertParameters());
+      
+      const malformedFiles = [
+        { name: 'valid.pdf' },
+        // @ts-ignore - Testing runtime resilience
+        { name: null },
+        // @ts-ignore
+        { name: undefined }
+      ];
+      
+      act(() => {
+        result.current.analyzeFileTypes(malformedFiles);
+      });
+      
+      // Should still process the valid file and handle gracefully
+      expect(result.current.parameters.isSmartDetection).toBe(true);
+      expect(result.current.parameters.smartDetectionType).toBe('mixed');
+    });
+  });
+});

frontend/src/setupTests.ts

@@ -36,6 +36,8 @@ global.Worker = vi.fn().mockImplementation(() => ({
   terminate: vi.fn(),
   addEventListener: vi.fn(),
   removeEventListener: vi.fn(),
+  onmessage: null,
+  onerror: null,
 }))
 
 // Mock ResizeObserver for Mantine components
@@ -66,3 +68,6 @@ Object.defineProperty(window, 'matchMedia', {
     dispatchEvent: vi.fn(),
   })),
 })
+
+// Set global test timeout to prevent hangs
+vi.setConfig({ testTimeout: 5000, hookTimeout: 5000 })

frontend/src/tests/convert/ConvertSmartDetectionIntegration.test.tsx

@@ -0,0 +1,357 @@
+/**
+ * Integration tests for Convert Tool Smart Detection with real file scenarios
+ * Tests the complete flow from file upload through auto-detection to API calls
+ */
+
+import React from 'react';
+import { describe, test, expect, vi, beforeEach, afterEach } from 'vitest';
+import { renderHook, act, waitFor } from '@testing-library/react';
+import { useConvertOperation } from '../../hooks/tools/convert/useConvertOperation';
+import { useConvertParameters } from '../../hooks/tools/convert/useConvertParameters';
+import { FileContextProvider } from '../../contexts/FileContext';
+import { I18nextProvider } from 'react-i18next';
+import i18n from '../../i18n/config';
+import axios from 'axios';
+
+// Mock axios
+vi.mock('axios');
+const mockedAxios = vi.mocked(axios);
+
+// Mock utility modules
+vi.mock('../../utils/thumbnailUtils', () => ({
+  generateThumbnailForFile: vi.fn().mockResolvedValue('data:image/png;base64,fake-thumbnail')
+}));
+
+const TestWrapper: React.FC<{ children: React.ReactNode }> = ({ children }) => (
+  <I18nextProvider i18n={i18n}>
+    <FileContextProvider>
+      {children}
+    </FileContextProvider>
+  </I18nextProvider>
+);
+
+describe('Convert Tool - Smart Detection Integration Tests', () => {
+  
+  beforeEach(() => {
+    vi.clearAllMocks();
+    
+    // Mock successful API response
+    mockedAxios.post.mockResolvedValue({
+      data: new Blob(['fake converted content'], { type: 'application/pdf' })
+    });
+  });
+
+  afterEach(() => {
+    // Clean up any blob URLs created during tests
+    vi.restoreAllMocks();
+  });
+
+  describe('Single File Auto-Detection Flow', () => {
+    test('should auto-detect PDF from DOCX and convert to PDF', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      // Create mock DOCX file
+      const docxFile = new File(['docx content'], 'document.docx', { type: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' });
+      
+      // Test auto-detection
+      act(() => {
+        paramsResult.current.analyzeFileTypes([docxFile]);
+      });
+      
+      await waitFor(() => {
+        expect(paramsResult.current.parameters.fromExtension).toBe('docx');
+        expect(paramsResult.current.parameters.toExtension).toBe('pdf');
+        expect(paramsResult.current.parameters.isSmartDetection).toBe(false);
+      });
+      
+      // Test conversion operation
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          [docxFile]
+        );
+      });
+      
+      expect(mockedAxios.post).toHaveBeenCalledWith('/api/v1/convert/file/pdf', expect.any(FormData), {
+        responseType: 'blob'
+      });
+    });
+
+    test('should handle unknown file type with file-to-pdf fallback', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      // Create mock unknown file
+      const unknownFile = new File(['unknown content'], 'document.xyz', { type: 'application/octet-stream' });
+      
+      // Test auto-detection
+      act(() => {
+        paramsResult.current.analyzeFileTypes([unknownFile]);
+      });
+      
+      await waitFor(() => {
+        expect(paramsResult.current.parameters.fromExtension).toBe('any');
+        expect(paramsResult.current.parameters.toExtension).toBe('pdf'); // Fallback
+        expect(paramsResult.current.parameters.isSmartDetection).toBe(false);
+      });
+      
+      // Test conversion operation
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          [unknownFile]
+        );
+      });
+      
+      expect(mockedAxios.post).toHaveBeenCalledWith('/api/v1/convert/file/pdf', expect.any(FormData), {
+        responseType: 'blob'
+      });
+    });
+  });
+
+  describe('Multi-File Smart Detection Flow', () => {
+    
+    test('should detect all images and use img-to-pdf endpoint', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      // Create mock image files
+      const imageFiles = [
+        new File(['jpg content'], 'photo1.jpg', { type: 'image/jpeg' }),
+        new File(['png content'], 'photo2.png', { type: 'image/png' }),
+        new File(['gif content'], 'photo3.gif', { type: 'image/gif' })
+      ];
+      
+      // Test smart detection for all images
+      act(() => {
+        paramsResult.current.analyzeFileTypes(imageFiles);
+      });
+      
+      await waitFor(() => {
+        expect(paramsResult.current.parameters.fromExtension).toBe('image');
+        expect(paramsResult.current.parameters.toExtension).toBe('pdf');
+        expect(paramsResult.current.parameters.isSmartDetection).toBe(true);
+        expect(paramsResult.current.parameters.smartDetectionType).toBe('images');
+      });
+      
+      // Test conversion operation
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          imageFiles
+        );
+      });
+      
+      expect(mockedAxios.post).toHaveBeenCalledWith('/api/v1/convert/img/pdf', expect.any(FormData), {
+        responseType: 'blob'
+      });
+      
+      // Should send all files in single request
+      const formData = mockedAxios.post.mock.calls[0][1] as FormData;
+      const files = formData.getAll('fileInput');
+      expect(files).toHaveLength(3);
+    });
+
+    test('should detect mixed file types and use file-to-pdf endpoint', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      // Create mixed file types
+      const mixedFiles = [
+        new File(['pdf content'], 'document.pdf', { type: 'application/pdf' }),
+        new File(['docx content'], 'spreadsheet.xlsx', { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' }),
+        new File(['pptx content'], 'presentation.pptx', { type: 'application/vnd.openxmlformats-officedocument.presentationml.presentation' })
+      ];
+      
+      // Test smart detection for mixed types
+      act(() => {
+        paramsResult.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      await waitFor(() => {
+        expect(paramsResult.current.parameters.fromExtension).toBe('any');
+        expect(paramsResult.current.parameters.toExtension).toBe('pdf');
+        expect(paramsResult.current.parameters.isSmartDetection).toBe(true);
+        expect(paramsResult.current.parameters.smartDetectionType).toBe('mixed');
+      });
+      
+      // Test conversion operation
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          mixedFiles
+        );
+      });
+      
+      expect(mockedAxios.post).toHaveBeenCalledWith('/api/v1/convert/file/pdf', expect.any(FormData), {
+        responseType: 'blob'
+      });
+    });
+  });
+
+  describe('Image Conversion Options Integration', () => {
+    
+    test('should send correct parameters for image-to-pdf conversion', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      const imageFiles = [
+        new File(['jpg1'], 'photo1.jpg', { type: 'image/jpeg' }),
+        new File(['jpg2'], 'photo2.jpg', { type: 'image/jpeg' })
+      ];
+      
+      // Set up image conversion parameters
+      act(() => {
+        paramsResult.current.analyzeFileTypes(imageFiles);
+        paramsResult.current.updateParameter('imageOptions', {
+          colorType: 'grayscale',
+          dpi: 150,
+          singleOrMultiple: 'single',
+          fitOption: 'fitToPage',
+          autoRotate: false,
+          combineImages: true
+        });
+      });
+      
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          imageFiles
+        );
+      });
+      
+      const formData = mockedAxios.post.mock.calls[0][1] as FormData;
+      expect(formData.get('fitOption')).toBe('fitToPage');
+      expect(formData.get('colorType')).toBe('grayscale');
+      expect(formData.get('autoRotate')).toBe('false');
+    });
+
+    test('should process images separately when combineImages is false', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+      
+      const imageFiles = [
+        new File(['jpg1'], 'photo1.jpg', { type: 'image/jpeg' }),
+        new File(['jpg2'], 'photo2.jpg', { type: 'image/jpeg' })
+      ];
+      
+      // Set up for separate processing
+      act(() => {
+        paramsResult.current.analyzeFileTypes(imageFiles);
+        paramsResult.current.updateParameter('imageOptions', {
+          ...paramsResult.current.parameters.imageOptions,
+          combineImages: false
+        });
+      });
+      
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          imageFiles
+        );
+      });
+      
+      // Should make separate API calls for each file
+      expect(mockedAxios.post).toHaveBeenCalledTimes(2);
+    });
+  });
+
+  describe('Error Scenarios in Smart Detection', () => {
+    
+
+    test('should handle partial failures in multi-file processing', async () => {
+      const { result: paramsResult } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const { result: operationResult } = renderHook(() => useConvertOperation(), {
+        wrapper: TestWrapper
+      });
+       
+      // Mock one success, one failure
+      mockedAxios.post
+        .mockResolvedValueOnce({
+          data: new Blob(['converted1'], { type: 'application/pdf' })
+        })
+        .mockRejectedValueOnce(new Error('File 2 failed'));
+      
+      const mixedFiles = [
+        new File(['file1'], 'doc1.txt', { type: 'text/plain' }),
+        new File(['file2'], 'doc2.xyz', { type: 'application/octet-stream' })
+      ];
+      
+      // Set up for separate processing (mixed smart detection)
+      act(() => {
+        paramsResult.current.analyzeFileTypes(mixedFiles);
+      });
+      
+      await act(async () => {
+        await operationResult.current.executeOperation(
+          paramsResult.current.parameters,
+          mixedFiles
+        );
+      });
+      
+      await waitFor(() => {
+        // Should have processed at least one file successfully
+        expect(operationResult.current.files.length).toBeGreaterThan(0);
+        expect(mockedAxios.post).toHaveBeenCalledTimes(2);
+      });
+    });
+  });
+
+  describe('Real File Extension Detection', () => {
+    
+    test('should correctly detect various file extensions', async () => {
+      const { result } = renderHook(() => useConvertParameters(), {
+        wrapper: TestWrapper
+      });
+      
+      const testCases = [
+        { filename: 'document.PDF', expected: 'pdf' },
+        { filename: 'image.JPEG', expected: 'jpg' }, // JPEG should normalize to jpg
+        { filename: 'photo.jpeg', expected: 'jpg' }, // jpeg should normalize to jpg
+        { filename: 'archive.tar.gz', expected: 'gz' },
+        { filename: 'file.', expected: '' },
+        { filename: '.hidden', expected: 'hidden' },
+        { filename: 'noextension', expected: '' }
+      ];
+      
+      testCases.forEach(({ filename, expected }) => {
+        const detected = result.current.detectFileExtension(filename);
+        expect(detected).toBe(expected);
+      });
+    });
+  });
+});

frontend/src/tools/Convert.test.tsx

@@ -11,6 +11,8 @@ import { useConvertParameters } from '../hooks/tools/convert/useConvertParameter
 // Mock the hooks
 vi.mock('../hooks/tools/convert/useConvertParameters');
 vi.mock('../hooks/useEndpointConfig');
+vi.mock('../contexts/FileSelectionContext');
+vi.mock('../contexts/FileContext');
 
 const mockUseConvertParameters = vi.mocked(useConvertParameters);
 
@@ -41,12 +43,37 @@ vi.mock('../hooks/useEndpointConfig', () => ({
   })
 }));
 
+// Mock FileSelectionContext hooks
+vi.mock('../contexts/FileSelectionContext', () => ({
+  useFileSelectionActions: () => ({
+    setSelectedFiles: vi.fn(),
+    clearSelection: vi.fn(),
+    setMaxFiles: vi.fn(),
+    setIsToolMode: vi.fn()
+  })
+}));
+
+// Mock FileContext 
+vi.mock('../contexts/FileContext', () => ({
+  FileContextProvider: ({ children }: { children: React.ReactNode }) => children,
+  useFileContext: () => ({
+    activeFiles: [],
+    setSelectedFiles: vi.fn(),
+    addFiles: vi.fn(),
+    removeFiles: vi.fn(),
+    clearFiles: vi.fn(),
+    updateFileMetadata: vi.fn(),
+    mode: 'viewer',
+    setMode: vi.fn(),
+    isLoading: false,
+    error: null
+  })
+}));
+
 const TestWrapper: React.FC<{ children: React.ReactNode }> = ({ children }) => (
   <MantineProvider>
     <I18nextProvider i18n={i18n}>
-      <FileContextProvider>
-        {children}
-      </FileContextProvider>
+      {children}
     </I18nextProvider>
   </MantineProvider>
 );
@@ -117,6 +144,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -158,6 +186,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -205,6 +234,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -249,6 +279,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -284,6 +315,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -323,6 +355,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );
@@ -361,6 +394,7 @@ describe('Convert Tool Navigation Tests', () => {
             }}
             onParameterChange={mockOnParameterChange}
             getAvailableToExtensions={mockGetAvailableToExtensions}
+            selectedFiles={[]}
           />
         </TestWrapper>
       );

frontend/src/tools/Convert.tsx

@@ -144,6 +144,7 @@ const Convert = ({ onPreviewFile, onComplete, onError }: BaseToolProps) => {
               parameters={convertParams.parameters}
               onParameterChange={convertParams.updateParameter}
               getAvailableToExtensions={convertParams.getAvailableToExtensions}
+              selectedFiles={selectedFiles}
               disabled={endpointLoading}
             />
 

frontend/src/utils/convertUtils.test.ts

@@ -83,7 +83,7 @@ describe('convertUtils', () => {
 
     test('should return empty string for unsupported conversions', () => {
       expect(getEndpointName('pdf', 'exe')).toBe('');
-      expect(getEndpointName('wav', 'pdf')).toBe('');
+      expect(getEndpointName('wav', 'pdf')).toBe('file-to-pdf'); // Try using file to pdf as fallback
       expect(getEndpointName('png', 'docx')).toBe(''); // Images can't convert to Word docs
     });
 
@@ -166,7 +166,7 @@ describe('convertUtils', () => {
 
     test('should return empty string for unsupported conversions', () => {
       expect(getEndpointUrl('pdf', 'exe')).toBe('');
-      expect(getEndpointUrl('wav', 'pdf')).toBe('');
+      expect(getEndpointUrl('wav', 'pdf')).toBe('/api/v1/convert/file/pdf'); // Try using file to pdf as fallback
       expect(getEndpointUrl('invalid', 'invalid')).toBe('');
     });
 
@@ -248,7 +248,7 @@ describe('convertUtils', () => {
 
     test('should return false for unsupported conversions', () => {
       expect(isConversionSupported('pdf', 'exe')).toBe(false);
-      expect(isConversionSupported('wav', 'pdf')).toBe(false);
+      expect(isConversionSupported('wav', 'pdf')).toBe(true); // Fallback to file to pdf
       expect(isConversionSupported('png', 'docx')).toBe(false);
       expect(isConversionSupported('nonexistent', 'alsononexistent')).toBe(false);
     });
@@ -330,7 +330,7 @@ describe('convertUtils', () => {
       const longExtension = 'a'.repeat(100);
       expect(isImageFormat(longExtension)).toBe(false);
       expect(getEndpointName('pdf', longExtension)).toBe('');
-      expect(getEndpointName(longExtension, 'pdf')).toBe('');
+      expect(getEndpointName(longExtension, 'pdf')).toBe('file-to-pdf'); // Fallback to file to pdf
     });
   });
 });

frontend/src/utils/convertUtils.ts

@@ -10,7 +10,14 @@ import {
 export const getEndpointName = (fromExtension: string, toExtension: string): string => {
   if (!fromExtension || !toExtension) return '';
   
-  const endpointKey = EXTENSION_TO_ENDPOINT[fromExtension]?.[toExtension];
+  let endpointKey = EXTENSION_TO_ENDPOINT[fromExtension]?.[toExtension];
+  
+  // If no explicit mapping exists and we're converting to PDF, 
+  // fall back to 'any' which uses file-to-pdf endpoint
+  if (!endpointKey && toExtension === 'pdf' && fromExtension !== 'any') {
+    endpointKey = EXTENSION_TO_ENDPOINT['any']?.[toExtension];
+  }
+  
   return endpointKey || '';
 };
 

frontend/tsconfig.json

@@ -11,7 +11,7 @@
     // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
 
     /* Language and Environment */
-    "target": "es2024",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    "target": "es2022",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
     // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
     "jsx": "react-jsx",                                /* Specify what JSX code is generated. */
     // "libReplacement": true,                           /* Enable lib replacement. */

frontend/vitest.minimal.config.ts

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    environment: 'node',
+    testTimeout: 5000,
+    include: ['src/utils/convertUtils.test.ts']
+  },
+})