Analyze codebase for improvement opportunities - #119
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Co-authored-by: codes <[email protected]>
Co-authored-by: codes <[email protected]>
WalkthroughThis update introduces a comprehensive suite of improvements: optimized and debounced resource search logic with input sanitization, detailed security utilities, enhanced error boundaries, new security headers, and a robust testing infrastructure. It adds multiple new utility modules, test suites, ESLint and Jest configurations, CI/CD workflow, and expands documentation with analysis and implementation guides. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant SearchInput
participant search-context
participant lib/utils/search.ts
User->>SearchInput: Types search query
SearchInput->>SearchInput: Sanitize input
SearchInput->>search-context: setSearchQuery(sanitizedQuery)
search-context->>lib/utils/search.ts: Debounced search (300ms)
lib/utils/search.ts->>search-context: Return relevance-scored, limited results
search-context->>SearchInput: Update search results
sequenceDiagram
participant User
participant ErrorBoundary
participant ChildComponent
User->>ChildComponent: Triggers action
ChildComponent-->>ErrorBoundary: Throws error
ErrorBoundary->>ErrorBoundary: Catches error, logs (dev only)
ErrorBoundary->>User: Shows fallback UI with retry/home options
Possibly related PRs
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__tests__/contexts/search-context.test.tsxOops! Something went wrong! :( ESLint: 9.24.0 ESLint couldn't find an eslint.config.(js|mjs|cjs) file. From ESLint v9.0.0, the default configuration file is now eslint.config.js. https://eslint.org/docs/latest/use/configure/migration-guide If you still have problems after following the migration guide, please stop by __tests__/contexts/favorites-context.test.tsxOops! Something went wrong! :( ESLint: 9.24.0 ESLint couldn't find an eslint.config.(js|mjs|cjs) file. From ESLint v9.0.0, the default configuration file is now eslint.config.js. https://eslint.org/docs/latest/use/configure/migration-guide If you still have problems after following the migration guide, please stop by components/ui/error-boundary.tsxOops! Something went wrong! :( ESLint: 9.24.0 ESLint couldn't find an eslint.config.(js|mjs|cjs) file. From ESLint v9.0.0, the default configuration file is now eslint.config.js. https://eslint.org/docs/latest/use/configure/migration-guide If you still have problems after following the migration guide, please stop by
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Summary of Changes
Hello @jayvicsanantonio, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request delivers a detailed codebase analysis report and simultaneously implements several high-priority improvements identified within that analysis. The changes focus on establishing a foundational testing framework, enhancing application performance through optimized search, bolstering security with input sanitization and robust headers, improving error handling, and refining overall code quality through updated linting rules.
Highlights
- Code Analysis Report: A comprehensive
CODEBASE_ANALYSIS.mdreport has been added, detailing current issues and providing actionable recommendations across code quality, performance, security, scalability, error handling, and test coverage. AnIMPLEMENTATION_GUIDE.mdis also included to assist with future improvements. - Testing Framework Setup: The project now includes a robust testing infrastructure with Jest and React Testing Library. Initial unit tests have been added for the
FavoritesProviderandSearchProvidercontexts, along withjest.config.jsandjest.setup.jsconfigurations, and new npm scripts for running tests. - Performance Optimizations: Search functionality has been significantly improved in
contexts/search-context.tsxandlib/utils/search.tswith debouncing, relevance scoring, and result limiting. Additionally, theResourceCardcomponent now utilizesReact.memoto prevent unnecessary re-renders. - Security Enhancements: Key security measures have been implemented, including the addition of comprehensive security headers in
next.config.mjs, input sanitization for search queries incomponents/ui/search-input.tsx, and environment-aware logging incontexts/favorites-context.tsx. A newlib/utils/security.tsmodule provides centralized security utilities. - Error Handling Improvements: A global
ErrorBoundarycomponent has been introduced incomponents/ui/error-boundary.tsx, along withuseErrorHandleranduseAsyncErrorhooks, to provide more resilient and user-friendly error management throughout the application. - Code Quality & Linting: The
.eslintrc.jsonconfiguration has been expanded to enforce stricter code quality standards, including TypeScript-specific rules, import order enforcement, and warnings for console statements and unused variables.
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| // Sanitize input to prevent XSS attacks | ||
| const sanitizedValue = value | ||
| .trim() | ||
| .replace(/[<>]/g, '') // Remove potential HTML tags | ||
| .replace(/['"]/g, '') // Remove quotes | ||
| .replace(/javascript:/gi, '') // Remove javascript: protocol | ||
| .substring(0, 100); // Limit length | ||
|
|
||
| setLocalSearchQuery(sanitizedValue); | ||
| setSearchQuery(sanitizedValue); |
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The current input sanitization logic is vulnerable to XSS bypass attacks and may incorrectly modify valid search queries. Relying on replace calls is not a robust security measure.
Since dompurify has been added as a dependency, it should be used for proper sanitization. This will provide stronger XSS protection and be configurable to avoid interfering with legitimate search terms.
// Sanitize input to prevent XSS attacks
const sanitizedValue = DOMPurify.sanitize(value).trim().substring(0, 100);
setLocalSearchQuery(sanitizedValue);
setSearchQuery(sanitizedValue);| export const sanitizeInput = (input: string): string => { | ||
| if (!input) return ''; | ||
|
|
||
| return input | ||
| .trim() | ||
| .replace(/[<>]/g, '') // Remove potential HTML tags | ||
| .replace(/['"]/g, '') // Remove quotes that could break out of attributes | ||
| .replace(/javascript:/gi, '') // Remove javascript: protocol | ||
| .replace(/on\w+=/gi, '') // Remove event handlers | ||
| .substring(0, 1000); // Limit length to prevent DoS | ||
| }; |
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The custom sanitizeInput function uses a regex-based approach that is insufficient for preventing XSS attacks and can be bypassed, providing a false sense of security.
Since dompurify is already a dependency, it should be used for robust HTML sanitization. Handle the server-side case where window is not available.
| export const sanitizeInput = (input: string): string => { | |
| if (!input) return ''; | |
| return input | |
| .trim() | |
| .replace(/[<>]/g, '') // Remove potential HTML tags | |
| .replace(/['"]/g, '') // Remove quotes that could break out of attributes | |
| .replace(/javascript:/gi, '') // Remove javascript: protocol | |
| .replace(/on\w+=/gi, '') // Remove event handlers | |
| .substring(0, 1000); // Limit length to prevent DoS | |
| }; | |
| export const sanitizeInput = (input: string): string => { | |
| if (!input) return ''; | |
| // DOMPurify is client-side only. | |
| if (typeof window === 'undefined') { | |
| // On the server, rely on the framework's output escaping. | |
| return input; | |
| } | |
| return DOMPurify.sanitize(input); | |
| }; |
| const searchIndex = useMemo(() => { | ||
| const allResources = getAllResources(); | ||
| return allResources.map(resource => ({ | ||
| ...resource, | ||
| searchString: `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase() | ||
| })); | ||
| }, []); |
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The memoized searchIndex is currently unused, negating the intended performance benefit. The search logic in performOptimizedSearch recalculates the searchString on every call.
To fix this, performOptimizedSearch should operate on the indexed data. Consider creating the index inside performOptimizedSearch or having separate memoized indexes for each data source.
| export const sanitizeSearchQuery = (query: string): string => { | ||
| return query | ||
| .trim() | ||
| .replace(/[<>]/g, '') // Remove potential HTML tags | ||
| .replace(/['"]/g, '') // Remove quotes | ||
| .substring(0, 100) // Limit length | ||
| } |
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The sanitizeSearchQuery function implements weak, regex-based sanitization that can be easily bypassed. It also duplicates sanitization logic found elsewhere.
Consolidate sanitization logic using DOMPurify and remove this redundant and insecure function.
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Bug: Memoization Ineffectiveness in Search Function
The searchIndex useMemo pre-computes search strings for resources, but the performOptimizedSearch function recalculates these strings for each resource, negating the memoization's performance benefits. Additionally, searchIndex has an empty dependency array, preventing it from updating if underlying resource data changes, which could lead to stale search results.
contexts/search-context.tsx#L96-L134
web-development-hub/contexts/search-context.tsx
Lines 96 to 134 in d853a89
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Actionable comments posted: 8
♻️ Duplicate comments (1)
components/ui/error-boundary.tsx (1)
127-138: Duplicate logging logic in useErrorHandler.Similar to the error boundary, this hook has identical logging for both environments.
🧹 Nitpick comments (8)
components/ui/search-input.tsx (1)
34-44: Input sanitization enhances security but may be overly restrictive.The sanitization logic effectively prevents XSS attacks by removing dangerous characters and patterns. However, the removal of all quotes and angle brackets might be too restrictive for legitimate search queries that could include quoted terms or technical content with brackets.
Consider a more targeted approach that preserves legitimate search functionality:
- const sanitizedValue = value - .trim() - .replace(/[<>]/g, '') // Remove potential HTML tags - .replace(/['"]/g, '') // Remove quotes - .replace(/javascript:/gi, '') // Remove javascript: protocol - .substring(0, 100); // Limit length + const sanitizedValue = value + .trim() + .replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, '') // Remove script tags + .replace(/javascript:/gi, '') // Remove javascript: protocol + .replace(/on\w+\s*=/gi, '') // Remove event handlers + .substring(0, 100); // Limit lengthThis approach maintains search functionality while still preventing the most common XSS vectors.
next.config.mjs (1)
2-32: Security headers implementation is solid with one deprecation note.The security headers configuration effectively enhances protection against common web vulnerabilities. The headers chosen are appropriate for a general web application.
Consider replacing the deprecated
X-XSS-Protectionheader with a more modern CSP approach:- { - key: 'X-XSS-Protection', - value: '1; mode=block', - }, + { + key: 'Content-Security-Policy', + value: "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'", + },The
X-XSS-Protectionheader is deprecated and can actually introduce vulnerabilities in older browsers. A properly configured CSP provides better protection.jest.config.js (1)
1-38: Comprehensive Jest configuration aligns with testing best practices.The configuration properly integrates with Next.js, sets reasonable coverage thresholds, and includes appropriate file patterns for testing. The 70% coverage threshold strikes a good balance between code quality and development velocity.
Consider adding a coverage reporter configuration for better visibility:
coverageThreshold: { global: { branches: 70, functions: 70, lines: 70, statements: 70, }, }, + coverageReporters: ['text', 'lcov', 'html'],This will provide multiple coverage report formats useful for both local development and CI/CD pipelines.
jest.setup.js (1)
47-53: Remove unnecessary constructor.The empty constructor in the IntersectionObserver mock class is unnecessary and can be removed for cleaner code.
-global.IntersectionObserver = class IntersectionObserver { - constructor() {} - disconnect() {} - observe() {} - unobserve() {} -} +global.IntersectionObserver = class IntersectionObserver { + disconnect() {} + observe() {} + unobserve() {} +}CODEBASE_ANALYSIS.md (1)
1-483: Minor: Consider addressing formatting consistency.While the content is excellent, consider standardizing the spacing and formatting throughout the document to improve readability. The static analysis tools flagged several spacing inconsistencies that could be addressed.
# Example of consistent spacing (apply throughout): -## Executive Summary +## Executive Summary -### 🔍 **Code Quality** +### 🔍 **Code Quality** -#### Issues Identified: +#### Issues Identified:IMPLEMENTATION_GUIDE.md (1)
47-58: Add language identifier to the code block.The fenced code block showing the test directory structure should have a language identifier for better syntax highlighting.
-``` +```plaintext __tests__/ ├── contexts/ │ ├── search-context.test.tsx │ └── favorites-context.test.tsx ├── components/ │ └── ui/ │ └── resource-card.test.tsx └── utils/ └── search.test.tsx</blockquote></details> <details> <summary>.github/workflows/ci.yml (1)</summary><blockquote> `1-120`: **Fix YAML formatting issues.** The file has trailing spaces throughout and is missing a newline at the end. This violates YAML best practices. Run a YAML formatter to remove all trailing spaces and add a newline at the end of the file. Most editors can do this automatically with format-on-save enabled. </blockquote></details> <details> <summary>lib/utils/search.ts (1)</summary><blockquote> `1-2`: **Consider consolidating lodash imports and potential bundle size impact.** The lodash import adds to the bundle size. Consider using a more lightweight debounce implementation or importing only the specific function you need. ```diff -import { debounce } from 'lodash' +import debounce from 'lodash/debounce'Alternatively, you could implement a simple debounce function locally to reduce dependencies.
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📒 Files selected for processing (17)
.eslintrc.json(1 hunks).github/workflows/ci.yml(1 hunks)CODEBASE_ANALYSIS.md(1 hunks)IMPLEMENTATION_GUIDE.md(1 hunks)__tests__/contexts/favorites-context.test.tsx(1 hunks)__tests__/contexts/search-context.test.tsx(1 hunks)components/ui/error-boundary.tsx(1 hunks)components/ui/resource-card.tsx(2 hunks)components/ui/search-input.tsx(1 hunks)contexts/favorites-context.tsx(3 hunks)contexts/search-context.tsx(2 hunks)jest.config.js(1 hunks)jest.setup.js(1 hunks)lib/utils/search.ts(1 hunks)lib/utils/security.ts(1 hunks)next.config.mjs(1 hunks)package.json(2 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (3)
__tests__/contexts/favorites-context.test.tsx (1)
contexts/favorites-context.tsx (3)
useFavorites(213-223)Resource(16-22)FavoritesProvider(81-211)
contexts/search-context.tsx (2)
contexts/favorites-context.tsx (1)
Resource(16-22)components/ui/resource-grid.tsx (1)
Resource(6-10)
lib/utils/security.ts (1)
lib/utils/search.ts (1)
validateSearchQuery(130-144)
🪛 LanguageTool
CODEBASE_ANALYSIS.md
[grammar] ~1-~1: Use correct spacing
Context: # Codebase Analysis Report ## Executive Summary This analysis examin...
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Context: ...se Analysis Report ## Executive Summary This analysis examines a Next.js 15 appl...
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Context: ...ing, performance optimization, and data management. ## Key Findings by Category ### 🔍 **Code...
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Context: ...nd data management. ## Key Findings by Category ### 🔍 Code Quality #### Issues Identi...
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Context: ...Key Findings by Category ### 🔍 Code Quality #### Issues Identified: 1. **Large Constant...
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Context: ...y ### 🔍 Code Quality #### Issues Identified: 1. Large Constants File (1,427 lines) ...
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Context: ...coded data structure making maintenance difficult - Impact: Poor maintainability, ...
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Context: ...or maintainability, difficult to update resources 2. Inconsistent Error Handling - **Fi...
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Context: ...r and silent failures - Example: Line 118-132 in `contexts/favorites-context....
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Context: ...failures - Example: Line 118-132 in contexts/favorites-context.tsx 3. Missing Input Validation - **File...
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Context: ...o validation for search queries or user inputs - Impact: Potential runtime erro...
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Context: ...ct:** Potential runtime errors and poor UX 4. Minimal ESLint Configuration - **F...
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Context: ...- Impact: Inconsistent code quality standards #### Recommendations: typescript // 1. Split constants into modular structure // Move from: export const SECTIONS = [...] // 1,427 lines // To: export const LEARNING_RESOURCES = [...]; export const DEVELOPER_TOOLS = [...]; export const SECTIONS = { 'learning-resources': LEARNING_RESOURCES, 'developer-tools': DEVELOPER_TOOLS, // ... }; // 2. Add input validation with Zod const searchSchema = z.object({ query: z.string().min(1).max(100), tags: z.array(z.string()).optional(), }); // 3. Enhanced ESLint configuration { "extends": [ "next/core-web-vitals", "@typescript-eslint/recommended", "plugin:react-hooks/recommended", "plugin:jsx-a11y/recommended" ], "rules": { "no-console": "warn", "prefer-const": "error", "@typescript-eslint/no-unused-vars": "error" } } ### ⚡ Performance #### Issues Identifi...
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Context: ...-unused-vars": "error" } } ``` ### ⚡ Performance #### Issues Identified: 1. **Inefficient Se...
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Context: ...``` ### ⚡ Performance #### Issues Identified: 1. Inefficient Search Implementation ...
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Context: ...complexity, poor performance with large datasets 2. Missing Memoization - Files: `...
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Context: ...x` - Issue: Components re-render unnecessarily - Impact: Degraded performance, ...
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Context: ...Degraded performance, especially during search 3. Large Bundle Size Risk - File:...
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Context: ...vas` - Impact: Slow initial load times 4. No Virtualization for Large Lists ...
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Context: ...Issue:* Renders all search results at once - Impact: DOM performance issues...
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Context: ...act:** DOM performance issues with many results #### Recommendations: typescript // 1. Implement debounced search with memoization import { useMemo, useCallback } from 'react'; import { debounce } from 'lodash'; const useOptimizedSearch = (resources: Resource[]) => { const searchIndex = useMemo(() => { // Create search index for faster lookup return resources.map(resource => ({ ...resource, searchString: `${resource.title} ${resource.description} ${resource.section}`.toLowerCase() })); }, [resources]); const debouncedSearch = useCallback( debounce((query: string) => { // Implement search logic }, 300), [searchIndex] ); return { debouncedSearch }; }; // 2. Add React.memo for components const ResourceCard = React.memo(({ resource, accentColor }: ResourceCardProps) => { // Component implementation }); // 3. Consider dynamic imports for icons const DynamicIcon = dynamic(() => import('@iconify/react'), { loading: () => <div className="w-8 h-8 animate-pulse bg-gray-200 rounded" /> }); ### 🛡️ Security #### Issues Identifie...
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Context: ...g-gray-200 rounded" /> }); ``` ### 🛡️ Security #### Issues Identified: 1. **Console Loggin...
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Context: ... ``` ### 🛡️ Security #### Issues Identified: 1. Console Logging in Production - **...
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Context: ...:** Information disclosure, performance overhead 2. No Input Sanitization - Files:...
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Context: ...tization - Impact: Potential XSS vulnerabilities 3. External Link Security - File:...
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Context: ...l links use rel="noopener noreferrer" correctly - Status: ✅ Good Practice 4...
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Context: ...r"` correctly - Status: ✅ Good Practice 4. Missing Security Headers - **File:...
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Context: ...d - Impact: Vulnerable to common attacks #### Recommendations: typescript // 1. Environment-aware logging const logger = { error: (message: string, error?: Error) => { if (process.env.NODE_ENV === 'development') { console.error(message, error); } // Send to monitoring service in production } }; // 2. Input sanitization import DOMPurify from 'dompurify'; const sanitizeInput = (input: string) => { return DOMPurify.sanitize(input.trim()); }; // 3. Security headers in next.config.mjs const nextConfig = { async headers() { return [ { source: '/(.*)', headers: [ { key: 'X-Content-Type-Options', value: 'nosniff', }, { key: 'X-Frame-Options', value: 'DENY', }, { key: 'X-XSS-Protection', value: '1; mode=block', }, ], }, ]; }, }; ### 🚀 Scalability #### Issues Identif...
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Context: ... ], }, ]; }, }; ``` ### 🚀 Scalability #### Issues Identified: 1. **Context Provid...
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Context: ...`` ### 🚀 Scalability #### Issues Identified: 1. Context Provider Nesting - **File:...
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Context: ...** Performance degradation with complex state 2. Hardcoded Data Structure - **File:...
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Context: ...** Static data prevents dynamic content management - Impact: Cannot scale to suppor...
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Context: ... Cannot scale to support user-generated content 3. No Data Caching Strategy - **Files...
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Context: ...ta - Impact: Poor performance at scale 4. Missing State Management Architecture...
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Context: ...** Context-based state management won't scale - Impact: Complex state updates,...
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Context: ...act:** Complex state updates, difficult debugging #### Recommendations: typescript // 1. Implement centralized state management // Consider Zustand for lightweight state management import { create } from 'zustand'; interface AppState { resources: Resource[]; favorites: Resource[]; searchQuery: string; // Actions setSearchQuery: (query: string) => void; addFavorite: (resource: Resource) => void; } const useAppStore = create<AppState>((set) => ({ resources: [], favorites: [], searchQuery: '', setSearchQuery: (query) => set({ searchQuery: query }), addFavorite: (resource) => set((state) => ({ favorites: [...state.favorites, resource] })), })); // 2. Implement data layer abstraction interface DataService { getResources(): Promise<Resource[]>; searchResources(query: string): Promise<Resource[]>; getFavorites(): Promise<Resource[]>; } // 3. Add caching with React Query import { useQuery } from '@tanstack/react-query'; const useResources = () => { return useQuery({ queryKey: ['resources'], queryFn: () => dataService.getResources(), staleTime: 5 * 60 * 1000, // 5 minutes }); }; ### 🔧 Error Handling #### Issues Iden...
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Context: ... 5 minutes }); }; ``` ### 🔧 Error Handling #### Issues Identified: 1. **Inconsistent E...
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Context: ... ### 🔧 Error Handling #### Issues Identified: 1. Inconsistent Error Boundaries - **...
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Context: ...s** - Issue: No error boundaries implemented - Impact: Unhandled errors crash...
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Context: ...ct:** Unhandled errors crash the entire application 2. Poor Error Messages - File: `c...
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Context: ...ue:** Generic error messages don't help users - Impact: Poor user experience ...
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Context: ...t help users - Impact: Poor user experience 3. Missing Validation - Files: Al...
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Context: ...t:** Poor user experience 3. Missing Validation - Files: All form inputs and user interactions ...
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Context: ...s - Impact: Runtime errors, poor UX #### Recommendations: typescript // 1. Implement Error Boundary class ErrorBoundary extends React.Component< { children: React.ReactNode }, { hasError: boolean } > { constructor(props: { children: React.ReactNode }) { super(props); this.state = { hasError: false }; } static getDerivedStateFromError(error: Error) { return { hasError: true }; } componentDidCatch(error: Error, errorInfo: React.ErrorInfo) { console.error('Error caught by boundary:', error, errorInfo); } render() { if (this.state.hasError) { return <ErrorFallback />; } return this.props.children; } } // 2. Custom error types class SearchError extends Error { constructor(message: string, public readonly code: string) { super(message); this.name = 'SearchError'; } } // 3. Result type for error handling type Result<T, E = Error> = | { success: true; data: T } | { success: false; error: E }; const searchResources = async (query: string): Promise<Result<Resource[]>> => { try { const results = await performSearch(query); return { success: true, data: results }; } catch (error) { return { success: false, error: error as Error }; } }; ### 🧪 Test Coverage #### Issues Ident...
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Context: ...r as Error }; } }; ``` ### 🧪 Test Coverage #### Issues Identified: 1. **No Tests Found...
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Context: ... ### 🧪 Test Coverage #### Issues Identified: 1. No Tests Found - Issue: Zero t...
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Context: ... - Issue: Zero test files in the codebase - Impact: No confidence in code ...
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Context: ...nfidence in code reliability, difficult refactoring 2. No Testing Framework - Issue: ...
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Context: ... - Impact: No infrastructure for testing 3. No CI/CD Pipeline - Issue: No ...
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Context: ...e:** No automated testing in deployment pipeline - Impact: Bugs can reach product...
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Context: ...ipeline - Impact: Bugs can reach production #### Recommendations: typescript // 1. Add testing dependencies // package.json additions: { "devDependencies": { "@testing-library/react": "^14.0.0", "@testing-library/jest-dom": "^6.0.0", "@testing-library/user-event": "^14.0.0", "jest": "^29.0.0", "jest-environment-jsdom": "^29.0.0" } } // 2. Test setup example // __tests__/search-context.test.tsx import { render, screen } from '@testing-library/react'; import { SearchProvider, useSearch } from '@/contexts/search-context'; const TestComponent = () => { const { searchQuery, setSearchQuery } = useSearch(); return ( <div> <input value={searchQuery} onChange={(e) => setSearchQuery(e.target.value)} data-testid="search-input" /> <div data-testid="search-query">{searchQuery}</div> </div> ); }; describe('SearchProvider', () => { it('should update search query', () => { render( <SearchProvider> <TestComponent /> </SearchProvider> ); const input = screen.getByTestId('search-input'); fireEvent.change(input, { target: { value: 'react' } }); expect(screen.getByTestId('search-query')).toHaveTextContent('react'); }); }); // 3. GitHub Actions workflow // .github/workflows/test.yml name: Test on: [push, pull_request] jobs: test: runs-on: ubuntu-latest steps: - uses: actions/checkout@v3 - uses: actions/setup-node@v3 with: node-version: '18' - run: npm ci - run: npm test ## 🎯 Priority Recommendations ### Hi...
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Context: ... - run: npm test ``` ## 🎯 Priority Recommendations ### High Priority (Immediate Action Require...
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Context: ...** ### High Priority (Immediate Action Required) 1. Add Comprehensive Testing - Implem...
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Context: ...* - Implement unit tests for context providers - Add integration tests for search f...
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Context: ...s - Add integration tests for search functionality - Set up CI/CD pipeline 2. **Optimi...
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Context: ... search functionality - Set up CI/CD pipeline 2. Optimize Search Performance - Impl...
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Context: ... Performance** - Implement debounced search - Add search indexing - Use React...
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Context: ...lement debounced search - Add search indexing - Use React.memo for components 3. ...
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Context: ...search indexing - Use React.memo for components 3. Enhance Error Handling - Add error...
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Context: ...Enhance Error Handling** - Add error boundaries - Implement proper validation - C...
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Context: ... error boundaries - Implement proper validation - Create user-friendly error message...
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Context: ...idation - Create user-friendly error messages ### Medium Priority (Next Sprint) 1. **Ref...
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Context: ...ror messages ### Medium Priority (Next Sprint) 1. Refactor Data Management - Split l...
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Context: ...Management** - Split large constants file - Consider database migration - I...
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Context: ...e constants file - Consider database migration - Implement proper caching 2. **Sec...
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Context: ...atabase migration - Implement proper caching 2. Security Improvements - Add securi...
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Context: ...curity Improvements** - Add security headers - Implement input sanitization - ...
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Context: ...d security headers - Implement input sanitization - Remove console logs from productio...
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Context: ...itization - Remove console logs from production ### Low Priority (Future Considerations) 1...
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Context: ...om production ### Low Priority (Future Considerations) 1. Architecture Improvements - Consid...
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Context: ...chitecture Improvements** - Consider state management library - Implement prope...
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Context: ...ements** - Consider state management library - Implement proper data layer - A...
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Context: ...state management library - Implement proper data layer - Add monitoring and anal...
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Context: ...ment library - Implement proper data layer - Add monitoring and analytics 2. *...
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Context: ...oper data layer - Add monitoring and analytics 2. Performance Optimizations - Implem...
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Context: ...formance Optimizations** - Implement virtualization - Optimize bundle size - Add perf...
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Context: ...ent virtualization - Optimize bundle size - Add performance monitoring ## 📊 ...
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Context: ...timize bundle size - Add performance monitoring ## 📊 Implementation Impact Assessment...
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Context: ...nitoring ## 📊 Implementation Impact Assessment | Category | Current State | Recommende...
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Context: ...Quality | Fair | Good | Medium | Medium | ## 🚀 Next Steps 1. Week 1-2: Set...
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Context: ... Good | Medium | Medium | ## 🚀 Next Steps 1. Week 1-2: Set up testing infrastructu...
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Context: ...p testing infrastructure and write core tests 2. Week 3: Implement search perform...
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Context: ...Week 3:* Implement search performance optimizations 3. Week 4: Add error boundaries and...
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Context: ...3. Week 4: Add error boundaries and validation 4. Week 5-6: Refactor data manageme...
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Context: ...factor data management and add security headers 5. Week 7-8: Consider architectural...
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IMPLEMENTATION_GUIDE.md
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Context: # Implementation Guide This guide provides step-by-step instru...
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Context: ...codebase improvements identified in the analysis. ## 🚀 Phase 1: Install Dependencies F...
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Context: ...the analysis. ## 🚀 Phase 1: Install Dependencies First, install all the new dependencies...
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Context: ...endencies** First, install all the new dependencies: bash npm install This will install all the new dependenc...
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Context: ... management (zustand) - Enhanced ESLint configuration ## 🧪 Phase 2: Testing Infrastructure ...
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Context: ...configuration ## 🧪 Phase 2: Testing Infrastructure ### Running Tests ```bash # Run all tests ...
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Context: ...: Testing Infrastructure** ### Running Tests bash # Run all tests npm test # Run tests in watch mode npm run test:watch # Run tests with coverage npm run test:coverage ### Test Coverage Goals The Jest configura...
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Context: ...un test:coverage ``` ### Test Coverage Goals The Jest configuration includes coverag...
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Context: ...nctions: 70% - Lines: 70% - Statements: 70% ### Writing Tests Tests are located in the...
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Context: ...nes: 70% - Statements: 70% ### Writing Tests Tests are located in the __tests__ di...
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Context: ...e __tests__ directory and follow this structure: __tests__/ ├── contexts/ │ ├── search-context.test.tsx │ └── favorites-context.test.tsx ├── components/ │ └── ui/ │ └── resource-card.test.tsx └── utils/ └── search.test.tsx Example test file: ```typescript import...
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Context: ... └── search.test.tsx Example test file:typescript import { render, screen, fireEvent } from '@testing-library/react' import { SearchProvider } from '@/contexts/search-context' describe('SearchProvider', () => { it('should update search query', () => { // Test implementation }) }) ``` ## ⚡ *Phase 3: Performance Optimizations...
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Context: ... }) }) ``` ## ⚡ Phase 3: Performance Optimizations ### 1. Optimized Search Implementation The...
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Context: ...ptimizations** ### 1. Optimized Search Implementation The search functionality has been impro...
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Context: ... search functionality has been improved with: - Debouncing: 300ms delay to prevent ex...
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Context: ...on**: Search index is cached for better performance ### 2. Component Memoization Key component...
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Context: ...or better performance ### 2. Component Memoization Key components have been wrapped with `...
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Context: ... Key components have been wrapped with React.memo: typescript const ResourceCard = React.memo(function ResourceCard({ resource, accentColor, }: ResourceCardProps) { // Component implementation }); ### 3. Search Index Creation The search sy...
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Context: ...ementation }); ``` ### 3. Search Index Creation The search system now creates an indexe...
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Context: ...tes an indexed search string for faster lookups: typescript const searchIndex = useMemo(() => { return resources.map(resource => ({ ...resource, searchString: `${resource.title} ${resource.description} ${resource.section}`.toLowerCase() })); }, [resources]); ## 🛡️ Phase 4: Security Improvements ...
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Context: ...rces]); ``` ## 🛡️ Phase 4: Security Improvements ### 1. Security Headers Added comprehensiv...
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Context: ...ecurity Improvements** ### 1. Security Headers Added comprehensive security headers in...
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Context: ...Added comprehensive security headers in next.config.mjs: javascript async headers() { return [ { source: '/(.*)', headers: [ { key: 'X-Content-Type-Options', value: 'nosniff' }, { key: 'X-Frame-Options', value: 'DENY' }, { key: 'X-XSS-Protection', value: '1; mode=block' }, { key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' }, { key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()' } ] } ]; } ### 2. Input Sanitization Search inputs ar...
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Context: ... ] } ]; } ``` ### 2. Input Sanitization Search inputs are now sanitized to prev...
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Context: ...inputs are now sanitized to prevent XSS attacks: typescript const sanitizedValue = value .trim() .replace(/[<>]/g, '') // Remove HTML tags .replace(/['"]/g, '') // Remove quotes .replace(/javascript:/gi, '') // Remove javascript: protocol .substring(0, 100); // Limit length ### 3. Environment-Aware Logging Console s...
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Context: ...it length ``` ### 3. Environment-Aware Logging Console statements are now conditional ...
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Context: ...statements are now conditional based on environment: typescript if (process.env.NODE_ENV === 'development') { console.error('Error message', error); } ### 4. Security Utilities Use the security...
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Context: ...essage', error); } ``` ### 4. Security Utilities Use the security utilities from `lib/ut...
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Context: ...lities Use the security utilities from lib/utils/security.ts: typescript import { sanitizeInput, validateSearchQuery, validateUrl } from '@/lib/utils/security'; const sanitized = sanitizeInput(userInput); const validation = validateSearchQuery(query); ## 🔧 Phase 5: Error Handling ### 1. ...
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Context: ...ery(query); ``` ## 🔧 Phase 5: Error Handling ### 1. Error Boundaries Implement error bo...
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Context: ...Phase 5: Error Handling** ### 1. Error Boundaries Implement error boundaries in your comp...
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Context: ...ies Implement error boundaries in your components: typescript import { ErrorBoundary } from '@/components/ui/error-boundary'; <ErrorBoundary> <YourComponent /> </ErrorBoundary> ### 2. Async Error Handling Use the async ...
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Context: .../ErrorBoundary> ``` ### 2. Async Error Handling Use the async error hook for promise-ba...
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Context: ... the async error hook for promise-based errors: typescript import { useAsyncError } from '@/components/ui/error-boundary'; const throwError = useAsyncError(); try { await someAsyncOperation(); } catch (error) { throwError(error); } ## 🚀 Phase 6: CI/CD Pipeline ### 1. ...
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Context: ...r(error); } ``` ## 🚀 Phase 6: CI/CD Pipeline ### 1. GitHub Actions The CI/CD pipeline (...
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Context: ...hase 6: CI/CD Pipeline** ### 1. GitHub Actions The CI/CD pipeline (`.github/workflows/...
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Context: ...D pipeline (.github/workflows/ci.yml) includes: - Testing: Runs tests on Node.js 18.x a...
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Context: ... - Deployment: Deploys to Vercel on main branch ### 2. Required Secrets Add these secrets ...
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Context: ... Vercel on main branch ### 2. Required Secrets Add these secrets to your GitHub reposi...
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Context: ...crets Add these secrets to your GitHub repository: - VERCEL_TOKEN: Your Vercel API token - `VERCEL_ORG_I...
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Context: ...VERCEL_PROJECT_ID`: Your Vercel project ID ## 📊 **Phase 7: Enhanced ESLint Configura...
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Context: ...ct ID ## 📊 Phase 7: Enhanced ESLint Configuration ### 1. New Rules The ESLint configuration ...
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Context: ...nced ESLint Configuration** ### 1. New Rules The ESLint configuration now includes: ...
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Context: ...New Rules The ESLint configuration now includes: - TypeScript-specific rules - Import orde...
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Context: ...on now includes: - TypeScript-specific rules - Import order enforcement - Console st...
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Context: ...able detection - React hooks dependency checking ### 2. Running the Linter ```bash npm run ...
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Context: ...dependency checking ### 2. Running the Linter bash npm run lint ### 3. Auto-fixing Issues ```bash npx esli...
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Context: ...sh npm run lint ### 3. Auto-fixing Issues bash npx eslint . --fix ``` ## 🔄 **Phase 8: Data Structure Improvemen...
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Context: ...ix ``` ## 🔄 Phase 8: Data Structure Improvements ### 1. Constants Refactoring The large `co...
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Context: ...ucture Improvements** ### 1. Constants Refactoring The large constants/sections.ts file ...
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Context: ...s.ts` file should be split into smaller modules: typescript // constants/learning-resources.ts export const LEARNING_RESOURCES = [ // Learning resources data ]; // constants/developer-tools.ts export const DEVELOPER_TOOLS = [ // Developer tools data ]; // constants/sections.ts import { LEARNING_RESOURCES } from './learning-resources'; import { DEVELOPER_TOOLS } from './developer-tools'; export const SECTIONS = { 'learning-resources': LEARNING_RESOURCES, 'developer-tools': DEVELOPER_TOOLS, // ... }; ### 2. State Management Migration Consider...
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Context: ... // ... }; ``` ### 2. State Management Migration Consider migrating from Context API to ...
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Context: ... from Context API to Zustand for better performance: typescript import { create } from 'zustand'; interface AppState { searchQuery: string; favorites: Resource[]; setSearchQuery: (query: string) => void; addFavorite: (resource: Resource) => void; } export const useAppStore = create<AppState>((set) => ({ searchQuery: '', favorites: [], setSearchQuery: (query) => set({ searchQuery: query }), addFavorite: (resource) => set((state) => ({ favorites: [...state.favorites, resource] })), })); ## 🎯 *Phase 9: Monitoring and Analytics...
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Context: ...); ``` ## 🎯 Phase 9: Monitoring and Analytics ### 1. Error Monitoring Replace console.er...
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Context: ...onitoring and Analytics** ### 1. Error Monitoring Replace console.error with proper error...
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Context: ...Replace console.error with proper error monitoring: typescript // In production, send to service like Sentry if (process.env.NODE_ENV === 'production') { Sentry.captureException(error); } else { console.error(error); } ### 2. Performance Monitoring Consider add...
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Context: ...error(error); } ``` ### 2. Performance Monitoring Consider adding performance monitoring:...
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Context: ...Monitoring Consider adding performance monitoring: typescript // Web Vitals monitoring import { getCLS, getFID, getFCP, getLCP, getTTFB } from 'web-vitals'; getCLS(console.log); getFID(console.log); getFCP(console.log); getLCP(console.log); getTTFB(console.log); ## 📋 Phase 10: Deployment Checklist ...
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Context: ...log); ``` ## 📋 Phase 10: Deployment Checklist Before deploying to production: - [ ] ...
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Context: ...oyment Checklist** Before deploying to production: - [ ] All tests are passing - [ ] Linting...
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Context: ...ing to production: - [ ] All tests are passing - [ ] Linting issues are resolved - [ ]...
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Context: ...bles are set - [ ] Error boundaries are implemented - [ ] Performance optimizations are app...
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Context: ...ted - [ ] Performance optimizations are applied - [ ] CI/CD pipeline is configured - [ ...
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Context: ...ons are applied - [ ] CI/CD pipeline is configured - [ ] Monitoring is set up ## 🔧 **Tro...
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Context: ...e is configured - [ ] Monitoring is set up ## 🔧 Troubleshooting ### Common Issu...
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Context: ...gured - [ ] Monitoring is set up ## 🔧 Troubleshooting ### Common Issues 1. TypeScript Errors...
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Context: ...? Troubleshooting ### Common Issues 1. TypeScript Errors: Ensure `@types/node...
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Context: ...cript Errors**: Ensure @types/node is installed 2. Test Failures: Check mock implem...
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Context: ...talled 2. Test Failures: Check mock implementations 3. Linting Errors: Run `npm run lin...
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[grammar] ~342-~342: There might be a mistake here.
Context: ...d Errors**: Verify all dependencies are installed ### Getting Help - Check the GitHub Issues...
(QB_NEW_EN_OTHER)
[grammar] ~346-~346: There might be a mistake here.
Context: ...lp - Check the GitHub Issues for known problems - Review the test output for specific e...
(QB_NEW_EN_OTHER)
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Context: ...view the test output for specific error messages - Ensure all environment variables are ...
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Context: ... all environment variables are properly set - Verify Node.js version compatibility ...
(QB_NEW_EN_OTHER)
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Context: ...erify Node.js version compatibility (>= 18.0.0) ## 📈 Performance Monitoring After im...
(QB_NEW_EN_OTHER)
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Context: ...bility (>= 18.0.0) ## 📈 Performance Monitoring After implementation, monitor these met...
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Context: ...** After implementation, monitor these metrics: - Search Performance: Query response ti...
(QB_NEW_EN_OTHER_ERROR_IDS_5)
[grammar] ~355-~355: There might be a mistake here.
Context: ...ance**: Query response time should be < 100ms - Bundle Size: Monitor for increase...
(QB_NEW_EN_OTHER)
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Context: ...Size**: Monitor for increases in bundle size - Error Rate: Track error boundarie...
(QB_NEW_EN_OTHER)
[grammar] ~357-~357: There might be a mistake here.
Context: ...te**: Track error boundaries and failed requests - Test Coverage: Maintain > 70% cov...
(QB_NEW_EN_OTHER)
[grammar] ~358-~358: There might be a mistake here.
Context: ...e**: Maintain > 70% coverage across all metrics ## 🎯 Next Steps 1. Week 1: Insta...
(QB_NEW_EN_OTHER)
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Context: ...verage across all metrics ## 🎯 Next Steps 1. Week 1: Install dependencies and set ...
(QB_NEW_EN_OTHER_ERROR_IDS_5)
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Context: ...Install dependencies and set up testing infrastructure 2. Week 2: Implement performance op...
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Context: ...re 2. Week 2: Implement performance optimizations 3. Week 3: Add security improvement...
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Context: ...**: Add security improvements and error handling 4. Week 4: Set up CI/CD pipeline an...
(QB_NEW_EN_OTHER)
[grammar] ~365-~365: There might be a mistake here.
Context: .... Week 4: Set up CI/CD pipeline and monitoring 5. Week 5+: Refactor data structure...
(QB_NEW_EN_OTHER)
[grammar] ~366-~366: There might be a mistake here.
Context: ...a structures and consider architectural improvements This implementation provides a solid fo...
(QB_NEW_EN_OTHER)
🪛 markdownlint-cli2 (0.17.2)
CODEBASE_ANALYSIS.md
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IMPLEMENTATION_GUIDE.md
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(MD040, fenced-code-language)
🪛 Biome (1.9.4)
jest.setup.js
[error] 49-49: This constructor is unnecessary.
Unsafe fix: Remove the unnecessary constructor.
(lint/complexity/noUselessConstructor)
🪛 actionlint (1.7.7)
.github/workflows/ci.yml
39-39: the runner of "codecov/codecov-action@v3" action is too old to run on GitHub Actions. update the action's version to fix this issue
(action)
66-66: the runner of "actions/upload-artifact@v3" action is too old to run on GitHub Actions. update the action's version to fix this issue
(action)
🪛 YAMLlint (1.37.1)
.github/workflows/ci.yml
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⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)
- GitHub Check: Cursor BugBot
- GitHub Check: Cloudflare Pages
🔇 Additional comments (54)
contexts/favorites-context.tsx (3)
119-124: Environment-aware logging implementation looks good.The conditional logging based on NODE_ENV is a solid best practice that prevents console noise in production while maintaining useful debugging information during development.
135-137: Consistent error logging pattern maintained.The error handling follows the same environment-aware logging pattern as the other error cases, ensuring consistency throughout the file.
158-163: Good implementation of conditional error logging.The localStorage save error handling properly implements the same development-only logging pattern, maintaining consistency with the other error cases in this file.
components/ui/resource-card.tsx (2)
29-125: Excellent performance optimization with React.memo.The component memoization will prevent unnecessary re-renders, which is particularly beneficial for resource cards that may appear in lists or search results. The implementation correctly maintains the function name for better debugging.
127-127: Clean export pattern for memoized component.The default export of the memoized component follows React best practices and maintains clean module boundaries.
.eslintrc.json (4)
3-10: LGTM! Excellent ESLint configuration enhancement.The addition of TypeScript support and comprehensive rules significantly improves code quality standards. The configuration properly extends from recommended presets and includes the necessary parser and plugins.
11-22: Well-balanced rule configuration.The rule set strikes a good balance between strictness and practicality:
no-console: warnallows debugging while discouraging production console usage- TypeScript rules enforce type safety without being overly restrictive
- React rules are appropriately configured for modern React development
23-49: Excellent import ordering configuration.The import order rules are comprehensive and well-structured:
- Proper grouping from builtin → external → internal → relative
- React gets priority positioning as expected
- Internal paths with
@/prefix are properly categorizednewlines-between: neverpromotes consistency
50-55: Appropriate ignore patterns.The ignore patterns cover all necessary build and dependency directories that should be excluded from linting.
jest.setup.js (3)
1-18: Comprehensive Next.js navigation mocks.The
next/navigationmocks are well-structured and cover all essential navigation hooks with appropriate return values and mock functions.
20-30: Proper localStorage mock implementation.The localStorage mock correctly implements all required methods and is properly assigned to the window object for testing.
32-45: Thorough window.matchMedia mock.The matchMedia mock includes both deprecated and modern event listener methods, ensuring compatibility with various testing scenarios.
__tests__/contexts/favorites-context.test.tsx (8)
1-26: Well-structured test imports and mocks.The test properly imports necessary testing utilities and implements appropriate mocks for sections and resource mappings to isolate the context logic.
28-61: Comprehensive test component implementation.The TestComponent effectively exposes all context functionality through a clear UI interface, enabling thorough testing of the favorites context behavior.
63-78: Proper test setup and initialization test.The test setup includes proper mock cleanup and localStorage clearing. The initialization test correctly verifies the default empty state.
80-96: Thorough add favorite functionality test.The test properly uses
act()for state updates and verifies all aspects of adding a favorite including count, status, and content display.
98-121: Complete remove favorite workflow test.The test validates the full add-then-remove workflow, ensuring proper state management throughout the operation.
122-143: Clear favorites functionality test.Tests the clear operation after adding favorites, ensuring complete state reset.
145-160: Important duplicate prevention test.This test ensures the context correctly prevents duplicate favorites based on href, which is crucial for data integrity.
162-178: Proper error handling test.The test correctly suppresses console.error for the expected exception and verifies that the hook throws the appropriate error when used outside the provider. This is essential for proper context usage.
__tests__/contexts/search-context.test.tsx (11)
1-50: Comprehensive mocks and test setup.The test file properly mocks external dependencies and implements a thorough filter hook mock. The mock sections provide good test data coverage for different scenarios.
52-91: Well-designed test component.The TestComponent exposes all search context functionality through a clean interface, enabling comprehensive testing of search query, results, categories, and actions.
94-100: Proper test wrapper with providers.The TestWrapper correctly nests the SearchProvider within FavoritesProvider, matching the actual application structure.
107-116: Solid initialization test.Verifies the search context starts with the correct initial state (empty query and no results).
118-129: Search query update test.Tests the immediate update of search query state when input changes.
131-145: Async search results test.Properly uses
waitForto handle the debounced search behavior and verifies that results are returned correctly.
147-162: Clear search functionality test.Tests the complete workflow of searching and then clearing, ensuring proper state reset.
164-177: Category management test.Verifies that the current category can be set and retrieved correctly.
179-205: Comprehensive search scope test.Excellent test that verifies search works across title, description, and section fields, demonstrating the full search capability.
207-220: Empty results handling test.Tests the edge case of no matching results, ensuring the system handles empty states gracefully.
222-238: Proper error boundary test.Similar to the favorites test, this correctly verifies that the hook throws an appropriate error when used outside the provider.
CODEBASE_ANALYSIS.md (8)
1-7: Comprehensive executive summary.The analysis provides a clear overview of the Next.js 15 application with React 19 and TypeScript, accurately identifying the key improvement areas.
9-69: Detailed code quality analysis with actionable recommendations.The code quality section provides specific, actionable recommendations with code examples. The suggestions for modularizing constants, adding input validation with Zod, and enhancing ESLint configuration are all practical and valuable.
71-131: Excellent performance analysis and solutions.The performance section identifies real issues like inefficient search and missing memoization, providing concrete solutions including debounced search, React.memo usage, and dynamic imports.
132-201: Comprehensive security recommendations.The security analysis covers important aspects like production logging, input sanitization, and security headers. The code examples for DOMPurify integration and security headers configuration are practical and implementable.
202-269: Scalability concerns well-addressed.The scalability section correctly identifies limitations of the current context-based approach and provides solid alternatives like Zustand for state management and React Query for caching.
270-339: Thorough error handling recommendations.The error handling section provides practical solutions including error boundaries, custom error types, and Result type patterns for better error management.
340-420: Comprehensive testing strategy.The testing section correctly identifies the lack of tests and provides a complete roadmap for implementing a testing infrastructure, including Jest setup, test examples, and CI/CD integration.
421-483: Well-structured priority matrix and implementation plan.The priority recommendations are well-organized and the implementation timeline is realistic. The impact assessment table provides clear guidance for decision-making.
package.json (1)
13-15: LGTM! Well-structured dependency additions.The new dependencies align perfectly with the PR objectives:
- Testing infrastructure with Jest and React Testing Library
- Security enhancements with DOMPurify for input sanitization
- Performance improvements with lodash for debouncing
- State management with Zustand as mentioned in the implementation guide
- Enhanced linting with TypeScript ESLint plugins
Also applies to: 32-33, 41-42, 46-62
IMPLEMENTATION_GUIDE.md (1)
1-368: Excellent and comprehensive implementation guide!This guide provides clear, actionable steps for implementing all the improvements. The phased approach with specific timelines is particularly helpful.
lib/utils/search.ts (6)
4-10: LGTM! Well-defined type structure.The
SearchableResourcetype is clearly defined with appropriate fields for search functionality.
12-15: LGTM! Proper extension of the base type.The
SearchResulttype appropriately extendsSearchableResourcewith computed fields for optimization.
20-30: LGTM! Efficient search index creation.The implementation correctly pre-computes search strings for performance optimization. The concatenation approach is efficient for full-text search.
35-63: LGTM! Well-implemented relevance scoring algorithm.The relevance scoring appropriately weights different field matches with title getting the highest score. The bonus for prefix matches is a nice touch.
68-85: LGTM! Solid search implementation with good performance considerations.The search function efficiently filters and sorts results by relevance with a configurable limit to prevent performance issues.
90-114: LGTM! Excellent React hook implementation with proper optimizations.The hook correctly uses
useMemofor the search index and debounced search function, and provides a cleanup function for the debounced operation.lib/utils/security.ts (7)
8-18: LGTM! Comprehensive input sanitization with security focus.The sanitization function properly handles common XSS attack vectors including HTML tags, quotes, JavaScript protocols, and event handlers. The length limit helps prevent DoS attacks.
23-53: LGTM! Robust validation with malicious pattern detection.The validation function includes comprehensive checks for malicious patterns that could be used for XSS attacks. The pattern list covers common attack vectors.
58-87: LGTM! Solid URL validation with security considerations.The URL validation properly restricts protocols to HTTP/HTTPS and blocks potentially dangerous local domains. The try-catch handles malformed URLs gracefully.
92-112: LGTM! Environment-aware logging implementation.The logger properly restricts console output to development mode and includes a placeholder for production monitoring integration.
151-157: LGTM! Proper CSP nonce generation using crypto API.The nonce generation uses the secure
crypto.getRandomValues()API and produces a properly formatted hexadecimal string.
162-168: LGTM! Comprehensive security headers configuration.The headers include essential security controls for XSS protection, clickjacking prevention, and content sniffing protection.
173-189: LGTM! Thorough tag validation with proper sanitization.The function properly validates tag format, length, and character set while providing sanitized output. The regex pattern appropriately restricts to alphanumeric characters, spaces, and hyphens.
| uses: codecov/codecov-action@v3 | ||
| with: | ||
| file: ./coverage/lcov.info | ||
| flags: unittests | ||
| name: codecov-umbrella | ||
| fail_ci_if_error: true |
There was a problem hiding this comment.
Update to the latest action versions.
The codecov-action@v3 and upload-artifact@v3 actions are outdated and won't run on modern GitHub Actions runners.
- - name: Upload coverage to Codecov
- uses: codecov/codecov-action@v3
+ - name: Upload coverage to Codecov
+ uses: codecov/codecov-action@v4
with:
file: ./coverage/lcov.info
flags: unittests
name: codecov-umbrella
fail_ci_if_error: true
- - name: Upload build artifacts
- uses: actions/upload-artifact@v3
+ - name: Upload build artifacts
+ uses: actions/upload-artifact@v4
with:
name: build-files
path: .next/Also applies to: 66-69
🧰 Tools
🪛 actionlint (1.7.7)
39-39: the runner of "codecov/codecov-action@v3" action is too old to run on GitHub Actions. update the action's version to fix this issue
(action)
🤖 Prompt for AI Agents
In .github/workflows/ci.yml around lines 39 to 44 and also lines 66 to 69, the
codecov-action@v3 and upload-artifact@v3 actions are outdated and incompatible
with modern GitHub Actions runners. Update these actions to their latest stable
versions by changing the version tags to the newest releases, ensuring
compatibility and improved functionality.
| - name: Run dependency vulnerability check | ||
| run: npx audit-ci --config audit-ci.json | ||
| continue-on-error: true |
There was a problem hiding this comment.
Remove continue-on-error for security checks.
Security vulnerability checks should fail the build to ensure issues are addressed promptly.
- name: Run dependency vulnerability check
run: npx audit-ci --config audit-ci.json
- continue-on-error: true📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| - name: Run dependency vulnerability check | |
| run: npx audit-ci --config audit-ci.json | |
| continue-on-error: true | |
| - name: Run dependency vulnerability check | |
| run: npx audit-ci --config audit-ci.json |
🤖 Prompt for AI Agents
In .github/workflows/ci.yml around lines 89 to 91, the step running the
dependency vulnerability check uses continue-on-error: true, which allows the
build to pass even if vulnerabilities are found. Remove the continue-on-error
line from this step so that the build fails immediately when security issues are
detected, enforcing prompt resolution.
| const searchIndex = useMemo(() => { | ||
| const allResources = getAllResources(); | ||
| return allResources.map(resource => ({ | ||
| ...resource, | ||
| searchString: `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase() | ||
| })); | ||
| }, []); |
There was a problem hiding this comment.
The memoized searchIndex is never used.
The searchIndex is computed with memoization but performOptimizedSearch recalculates the search string for each resource instead of using this precomputed index.
Either remove the unused searchIndex or update performOptimizedSearch to use it for better performance:
- const searchIndex = useMemo(() => {
- const allResources = getAllResources();
- return allResources.map(resource => ({
- ...resource,
- searchString: `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase()
- }));
- }, []);Or update the search to use the index (see next comment).
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const searchIndex = useMemo(() => { | |
| const allResources = getAllResources(); | |
| return allResources.map(resource => ({ | |
| ...resource, | |
| searchString: `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase() | |
| })); | |
| }, []); |
🤖 Prompt for AI Agents
In contexts/search-context.tsx around lines 97 to 103, the memoized searchIndex
is computed but never used, leading to redundant calculations in
performOptimizedSearch. To fix this, update performOptimizedSearch to utilize
the precomputed searchIndex instead of recalculating the search strings for each
resource, or remove the unused searchIndex entirely if it is not needed.
| const performOptimizedSearch = useCallback((query: string, resources: Resource[]): Resource[] => { | ||
| if (!query.trim()) return []; | ||
|
|
||
| const lowerQuery = query.toLowerCase(); | ||
|
|
||
| return resources | ||
| .filter(resource => { | ||
| const searchString = `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase(); | ||
| return searchString.includes(lowerQuery); | ||
| }) | ||
| .map(resource => { | ||
| // Calculate relevance score | ||
| let score = 0; | ||
| const title = resource.title.toLowerCase(); | ||
| const description = resource.description.toLowerCase(); | ||
| const section = resource.section.toLowerCase(); | ||
|
|
||
| if (title.includes(lowerQuery)) { | ||
| score += 10; | ||
| if (title.startsWith(lowerQuery)) score += 5; | ||
| } | ||
| if (description.includes(lowerQuery)) score += 5; | ||
| if (section.includes(lowerQuery)) score += 2; | ||
| if (resource.tags?.some(tag => tag.toLowerCase().includes(lowerQuery))) score += 3; | ||
|
|
||
| return { ...resource, relevanceScore: score } as Resource & { relevanceScore: number }; | ||
| }) | ||
| .sort((a, b) => (b as any).relevanceScore - (a as any).relevanceScore) | ||
| .slice(0, 50); // Limit results for performance | ||
| }, []); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve type safety and use the memoized searchIndex.
The current implementation has type safety issues with 'as any' casting and doesn't utilize the memoized searchIndex.
- const performOptimizedSearch = useCallback((query: string, resources: Resource[]): Resource[] => {
+ type ResourceWithScore = Resource & { relevanceScore: number };
+
+ const performOptimizedSearch = useCallback((query: string, resources: (Resource & { searchString?: string })[]): Resource[] => {
if (!query.trim()) return [];
const lowerQuery = query.toLowerCase();
return resources
.filter(resource => {
- const searchString = `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase();
+ const searchString = resource.searchString ||
+ `${resource.title} ${resource.description} ${resource.section} ${resource.tags?.join(' ') || ''}`.toLowerCase();
return searchString.includes(lowerQuery);
})
.map(resource => {
// Calculate relevance score
let score = 0;
const title = resource.title.toLowerCase();
const description = resource.description.toLowerCase();
const section = resource.section.toLowerCase();
if (title.includes(lowerQuery)) {
score += 10;
if (title.startsWith(lowerQuery)) score += 5;
}
if (description.includes(lowerQuery)) score += 5;
if (section.includes(lowerQuery)) score += 2;
if (resource.tags?.some(tag => tag.toLowerCase().includes(lowerQuery))) score += 3;
- return { ...resource, relevanceScore: score } as Resource & { relevanceScore: number };
+ return { ...resource, relevanceScore: score } as ResourceWithScore;
})
- .sort((a, b) => (b as any).relevanceScore - (a as any).relevanceScore)
+ .sort((a, b) => (b as ResourceWithScore).relevanceScore - (a as ResourceWithScore).relevanceScore)
.slice(0, 50); // Limit results for performance
}, []);Then update the search calls to use the searchIndex:
- const searchSource = pathname === '/favorites' ? favorites : getAllResources();
+ const searchSource = pathname === '/favorites' ? favorites : searchIndex;
let results = performOptimizedSearch(searchQuery, searchSource);Committable suggestion skipped: line range outside the PR's diff.
🤖 Prompt for AI Agents
In contexts/search-context.tsx around lines 105 to 134, fix the type safety
issue by defining a proper type for the search results that includes
relevanceScore instead of using 'as any' casting. Also, update the
performOptimizedSearch function to use the memoized searchIndex instead of
directly filtering the resources array. Adjust the search calls accordingly to
utilize this updated function with searchIndex for better performance and type
safety.
| // Log error to monitoring service in production | ||
| if (process.env.NODE_ENV === 'production') { | ||
| // Replace with your error monitoring service | ||
| console.error('Error caught by boundary:', error, errorInfo); | ||
| } else { | ||
| console.error('Error caught by boundary:', error, errorInfo); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Production logging needs proper error monitoring service.
The code logs to console in both production and development environments, despite the comment indicating it should use a monitoring service in production.
Consider implementing proper error monitoring for production:
// Log error to monitoring service in production
if (process.env.NODE_ENV === 'production') {
- // Replace with your error monitoring service
- console.error('Error caught by boundary:', error, errorInfo);
+ // Example with Sentry (mentioned in IMPLEMENTATION_GUIDE.md)
+ // if (typeof window !== 'undefined' && window.Sentry) {
+ // window.Sentry.captureException(error, {
+ // contexts: { react: { componentStack: errorInfo.componentStack } }
+ // });
+ // }
+ console.error('Error caught by boundary:', error, errorInfo);
} else {
console.error('Error caught by boundary:', error, errorInfo);
}Would you like me to create an issue to track the integration of a proper error monitoring service like Sentry?
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Log error to monitoring service in production | |
| if (process.env.NODE_ENV === 'production') { | |
| // Replace with your error monitoring service | |
| console.error('Error caught by boundary:', error, errorInfo); | |
| } else { | |
| console.error('Error caught by boundary:', error, errorInfo); | |
| } | |
| // Log error to monitoring service in production | |
| if (process.env.NODE_ENV === 'production') { | |
| // Example with Sentry (mentioned in IMPLEMENTATION_GUIDE.md) | |
| // if (typeof window !== 'undefined' && window.Sentry) { | |
| // window.Sentry.captureException(error, { | |
| // contexts: { react: { componentStack: errorInfo.componentStack } } | |
| // }); | |
| // } | |
| console.error('Error caught by boundary:', error, errorInfo); | |
| } else { | |
| console.error('Error caught by boundary:', error, errorInfo); | |
| } |
🤖 Prompt for AI Agents
In components/ui/error-boundary.tsx around lines 41 to 47, the code currently
logs errors to the console in both production and development, which contradicts
the comment about using a proper error monitoring service in production. To fix
this, replace the console.error call inside the production check with an
integration to a real error monitoring service like Sentry or another tool your
project uses, while keeping console.error for development only. If the
monitoring service is not yet set up, create a placeholder function or comment
indicating where to add it.
| export const sanitizeSearchQuery = (query: string): string => { | ||
| return query | ||
| .trim() | ||
| .replace(/[<>]/g, '') // Remove potential HTML tags | ||
| .replace(/['"]/g, '') // Remove quotes | ||
| .substring(0, 100) // Limit length | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider consolidating sanitization logic with security.ts.
This function duplicates similar functionality found in lib/utils/security.ts. The security module provides a more comprehensive sanitizeInput function that handles additional security concerns.
+import { sanitizeInput } from './security'
+
-export const sanitizeSearchQuery = (query: string): string => {
- return query
- .trim()
- .replace(/[<>]/g, '') // Remove potential HTML tags
- .replace(/['"]/g, '') // Remove quotes
- .substring(0, 100) // Limit length
-}
+export const sanitizeSearchQuery = (query: string): string => {
+ return sanitizeInput(query).substring(0, 100) // Apply search-specific length limit
+}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export const sanitizeSearchQuery = (query: string): string => { | |
| return query | |
| .trim() | |
| .replace(/[<>]/g, '') // Remove potential HTML tags | |
| .replace(/['"]/g, '') // Remove quotes | |
| .substring(0, 100) // Limit length | |
| } | |
| import { sanitizeInput } from './security' | |
| export const sanitizeSearchQuery = (query: string): string => { | |
| return sanitizeInput(query).substring(0, 100) // Apply search-specific length limit | |
| } |
🤖 Prompt for AI Agents
In lib/utils/search.ts around lines 119 to 125, the sanitizeSearchQuery function
duplicates sanitization logic already implemented more comprehensively in
lib/utils/security.ts's sanitizeInput function. Replace the current
sanitizeSearchQuery implementation by importing and using sanitizeInput from
security.ts to consolidate sanitization logic and ensure consistent, thorough
input handling across the codebase.
| export const validateSearchQuery = (query: string): { isValid: boolean; error?: string } => { | ||
| if (!query) { | ||
| return { isValid: true } // Empty queries are valid | ||
| } | ||
|
|
||
| if (query.length > 100) { | ||
| return { isValid: false, error: 'Search query too long' } | ||
| } | ||
|
|
||
| if (query.trim().length < 1) { | ||
| return { isValid: false, error: 'Search query cannot be empty' } | ||
| } | ||
|
|
||
| return { isValid: true } | ||
| } No newline at end of file |
There was a problem hiding this comment.
Remove duplicate function - consolidate with security.ts.
This function duplicates the validateSearchQuery function in lib/utils/security.ts, but the security version includes additional malicious pattern detection. You should remove this version and import from the security module instead.
+import { validateSearchQuery as validateSearchQuerySecurity } from './security'
+
-export const validateSearchQuery = (query: string): { isValid: boolean; error?: string } => {
- if (!query) {
- return { isValid: true } // Empty queries are valid
- }
-
- if (query.length > 100) {
- return { isValid: false, error: 'Search query too long' }
- }
-
- if (query.trim().length < 1) {
- return { isValid: false, error: 'Search query cannot be empty' }
- }
-
- return { isValid: true }
-}
+export const validateSearchQuery = validateSearchQuerySecurity📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export const validateSearchQuery = (query: string): { isValid: boolean; error?: string } => { | |
| if (!query) { | |
| return { isValid: true } // Empty queries are valid | |
| } | |
| if (query.length > 100) { | |
| return { isValid: false, error: 'Search query too long' } | |
| } | |
| if (query.trim().length < 1) { | |
| return { isValid: false, error: 'Search query cannot be empty' } | |
| } | |
| return { isValid: true } | |
| } | |
| import { validateSearchQuery as validateSearchQuerySecurity } from './security' | |
| export const validateSearchQuery = validateSearchQuerySecurity |
🤖 Prompt for AI Agents
In lib/utils/search.ts around lines 130 to 144, remove the entire
validateSearchQuery function since it duplicates the one in
lib/utils/security.ts. Instead, import validateSearchQuery from
lib/utils/security.ts and use that version which includes additional malicious
pattern detection for better security.
| export class RateLimiter { | ||
| private requests: Map<string, number[]> = new Map(); | ||
| private limit: number; | ||
| private windowMs: number; | ||
|
|
||
| constructor(limit: number = 10, windowMs: number = 60000) { | ||
| this.limit = limit; | ||
| this.windowMs = windowMs; | ||
| } | ||
|
|
||
| isAllowed(key: string): boolean { | ||
| const now = Date.now(); | ||
| const requests = this.requests.get(key) || []; | ||
|
|
||
| // Remove old requests outside the window | ||
| const validRequests = requests.filter(time => now - time < this.windowMs); | ||
|
|
||
| if (validRequests.length >= this.limit) { | ||
| return false; | ||
| } | ||
|
|
||
| validRequests.push(now); | ||
| this.requests.set(key, validRequests); | ||
| return true; | ||
| } | ||
|
|
||
| reset(key: string): void { | ||
| this.requests.delete(key); | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Potential memory leak in RateLimiter implementation.
The rate limiter doesn't clean up old entries from the Map, which could lead to memory growth over time in long-running applications.
isAllowed(key: string): boolean {
const now = Date.now();
const requests = this.requests.get(key) || [];
// Remove old requests outside the window
const validRequests = requests.filter(time => now - time < this.windowMs);
if (validRequests.length >= this.limit) {
+ this.requests.set(key, validRequests); // Update with cleaned array
return false;
}
validRequests.push(now);
this.requests.set(key, validRequests);
return true;
}
+
+ // Add periodic cleanup method
+ cleanup(): void {
+ const now = Date.now();
+ for (const [key, requests] of this.requests.entries()) {
+ const validRequests = requests.filter(time => now - time < this.windowMs);
+ if (validRequests.length === 0) {
+ this.requests.delete(key);
+ } else {
+ this.requests.set(key, validRequests);
+ }
+ }
+ }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| export class RateLimiter { | |
| private requests: Map<string, number[]> = new Map(); | |
| private limit: number; | |
| private windowMs: number; | |
| constructor(limit: number = 10, windowMs: number = 60000) { | |
| this.limit = limit; | |
| this.windowMs = windowMs; | |
| } | |
| isAllowed(key: string): boolean { | |
| const now = Date.now(); | |
| const requests = this.requests.get(key) || []; | |
| // Remove old requests outside the window | |
| const validRequests = requests.filter(time => now - time < this.windowMs); | |
| if (validRequests.length >= this.limit) { | |
| return false; | |
| } | |
| validRequests.push(now); | |
| this.requests.set(key, validRequests); | |
| return true; | |
| } | |
| reset(key: string): void { | |
| this.requests.delete(key); | |
| } | |
| } | |
| export class RateLimiter { | |
| private requests: Map<string, number[]> = new Map(); | |
| private limit: number; | |
| private windowMs: number; | |
| constructor(limit: number = 10, windowMs: number = 60000) { | |
| this.limit = limit; | |
| this.windowMs = windowMs; | |
| } | |
| isAllowed(key: string): boolean { | |
| const now = Date.now(); | |
| const requests = this.requests.get(key) || []; | |
| // Remove old requests outside the window | |
| const validRequests = requests.filter(time => now - time < this.windowMs); | |
| if (validRequests.length >= this.limit) { | |
| this.requests.set(key, validRequests); // Update with cleaned array | |
| return false; | |
| } | |
| validRequests.push(now); | |
| this.requests.set(key, validRequests); | |
| return true; | |
| } | |
| reset(key: string): void { | |
| this.requests.delete(key); | |
| } | |
| // Add periodic cleanup method | |
| cleanup(): void { | |
| const now = Date.now(); | |
| for (const [key, requests] of this.requests.entries()) { | |
| const validRequests = requests.filter(time => now - time < this.windowMs); | |
| if (validRequests.length === 0) { | |
| this.requests.delete(key); | |
| } else { | |
| this.requests.set(key, validRequests); | |
| } | |
| } | |
| } | |
| } |
🤖 Prompt for AI Agents
In lib/utils/security.ts between lines 117 and 146, the RateLimiter class stores
request timestamps in a Map but never removes keys for users who no longer have
recent requests, causing potential memory leaks. To fix this, modify the
isAllowed method to delete the key from the Map when the filtered validRequests
array is empty after removing old timestamps, ensuring stale entries are cleaned
up and memory usage stays bounded.
2 participants
Implement key codebase improvements for testing, performance, security, and CI/CD.
This PR addresses the most critical findings from the recent codebase analysis, focusing on establishing a robust testing framework, optimizing search functionality, enhancing application security with input sanitization and security headers, and setting up an automated CI/CD pipeline.
Summary by CodeRabbit
New Features
Improvements
Bug Fixes
Testing
Chores