import { describe, it, expect } from 'vitest';

describe('SourcesPage Sync Functionality', () => {
  it('should have both Quick Sync and Deep Scan options', () => {
    // Test documents the new sync modal functionality
    // The sync button now opens a modal with two options:
    
    const syncOptions = {
      quickSync: {
        name: 'Quick Sync',
        description: 'Fast incremental sync using ETags. Only processes new or changed files.',
        endpoint: '/sources/{id}/sync',
        method: 'POST',
        recommended: true,
        supportedSources: ['webdav', 'local_folder', 's3'],
      },
      deepScan: {
        name: 'Deep Scan', 
        description: 'Complete rescan that resets ETag expectations. Use for troubleshooting sync issues.',
        endpoint: '/sources/{id}/deep-scan',
        method: 'POST',
        recommended: false,
        supportedSources: ['webdav'], // Currently only WebDAV
      }
    };
    
    // Verify both options exist
    expect(syncOptions.quickSync).toBeDefined();
    expect(syncOptions.deepScan).toBeDefined();
    
    // Verify Quick Sync supports all source types
    expect(syncOptions.quickSync.supportedSources).toEqual(['webdav', 'local_folder', 's3']);
    
    // Verify Deep Scan is WebDAV only
    expect(syncOptions.deepScan.supportedSources).toEqual(['webdav']);
    
    // Verify API endpoints
    expect(syncOptions.quickSync.endpoint).toBe('/sources/{id}/sync');
    expect(syncOptions.deepScan.endpoint).toBe('/sources/{id}/deep-scan');
  });

  it('should show appropriate options based on source type', () => {
    const sourceTypes = ['webdav', 'local_folder', 's3'];
    
    sourceTypes.forEach(sourceType => {
      const availableOptions = [];
      
      // Quick Sync is always available
      availableOptions.push('Quick Sync');
      
      // Deep Scan only for WebDAV
      if (sourceType === 'webdav') {
        availableOptions.push('Deep Scan');
      }
      
      if (sourceType === 'webdav') {
        expect(availableOptions).toEqual(['Quick Sync', 'Deep Scan']);
      } else {
        expect(availableOptions).toEqual(['Quick Sync']);
      }
    });
  });

  it('should use correct API services', () => {
    // Test documents the API service usage
    const apiServices = {
      triggerSync: 'sourcesService.triggerSync(sourceId)',
      triggerDeepScan: 'sourcesService.triggerDeepScan(sourceId)', 
      stopSync: 'sourcesService.stopSync(sourceId)',
    };
    
    // Verify service methods exist
    expect(apiServices.triggerSync).toBe('sourcesService.triggerSync(sourceId)');
    expect(apiServices.triggerDeepScan).toBe('sourcesService.triggerDeepScan(sourceId)');
    expect(apiServices.stopSync).toBe('sourcesService.stopSync(sourceId)');
  });

  it('should handle deep scan errors for non-WebDAV sources', () => {
    // Test documents error handling for deep scan on unsupported sources
    const errorScenarios = [
      {
        sourceType: 'local_folder',
        expectedBehavior: 'Deep scan option should be disabled/grayed out',
        apiResponse: 'Should not call deep scan API',
      },
      {
        sourceType: 's3',
        expectedBehavior: 'Deep scan option should be disabled/grayed out', 
        apiResponse: 'Should not call deep scan API',
      },
      {
        sourceType: 'webdav',
        expectedBehavior: 'Deep scan option should be enabled and clickable',
        apiResponse: 'Should call sourcesService.triggerDeepScan()',
      }
    ];
    
    errorScenarios.forEach(scenario => {
      if (scenario.sourceType === 'webdav') {
        expect(scenario.expectedBehavior).toBe('Deep scan option should be enabled and clickable');
      } else {
        expect(scenario.expectedBehavior).toBe('Deep scan option should be disabled/grayed out');
      }
    });
  });

  it('should provide clear user feedback', () => {
    // Test documents the UX improvements
    const userFeedback = {
      modalTitle: 'Choose Sync Type',
      quickSyncBadge: 'Recommended',
      deepScanBadge: {
        webdav: 'WebDAV Only',
        others: 'Not Available'
      },
      infoAlert: 'Deep scan is currently only available for WebDAV sources. Other source types will use quick sync.',
      descriptions: {
        quickSync: 'Fast incremental sync using ETags. Only processes new or changed files.',
        deepScan: 'Complete rescan that resets ETag expectations. Use for troubleshooting sync issues.'
      }
    };
    
    // Verify user-friendly messaging exists
    expect(userFeedback.modalTitle).toBe('Choose Sync Type');
    expect(userFeedback.quickSyncBadge).toBe('Recommended');
    expect(userFeedback.deepScanBadge.webdav).toBe('WebDAV Only');
    expect(userFeedback.deepScanBadge.others).toBe('Not Available');
    expect(userFeedback.descriptions.quickSync).toContain('ETags');
    expect(userFeedback.descriptions.deepScan).toContain('resets ETag expectations');
  });
});