Fix NaN rendering error in About section from Directus CMS data (#62)
* Initial plan * Fix NaN error in gaming and custom activities rendering Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Add unit tests for NaN handling in ActivityFeed Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Refactor: Extract gaming text logic to helper function Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Address code review feedback: improve types and tests Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Fix NaN error in About component (tech stack and hobbies) Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Update TypeScript interfaces to match actual data types Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> * Improve NaN handling with defensive logging and better null checks Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: denshooter <44590296+denshooter@users.noreply.github.com>
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150
app/__tests__/components/ActivityFeed.test.tsx
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150
app/__tests__/components/ActivityFeed.test.tsx
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import '@testing-library/jest-dom';
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/**
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* Unit tests for ActivityFeed NaN handling
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*
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* This test suite validates that the ActivityFeed component correctly handles
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* NaN and numeric values in gaming and custom activity data to prevent
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* "Received NaN for the children attribute" React errors.
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*/
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describe('ActivityFeed NaN Handling', () => {
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describe('Gaming activity rendering logic', () => {
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// Helper function to simulate getSafeGamingText behavior
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const getSafeGamingText = (details: string | number | undefined, state: string | number | undefined, fallback: string): string => {
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if (typeof details === 'string' && details.trim().length > 0) return details;
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if (typeof state === 'string' && state.trim().length > 0) return state;
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if (typeof details === 'number' && !isNaN(details)) return String(details);
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if (typeof state === 'number' && !isNaN(state)) return String(state);
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return fallback;
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};
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it('should safely handle NaN in gaming.details', () => {
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const result = getSafeGamingText(NaN, 'Playing', 'Playing...');
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expect(result).toBe('Playing'); // Should fall through NaN to state
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expect(result).not.toBe(NaN);
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expect(typeof result).toBe('string');
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});
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it('should safely handle NaN in both gaming.details and gaming.state', () => {
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const result = getSafeGamingText(NaN, NaN, 'Playing...');
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expect(result).toBe('Playing...'); // Should use fallback
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expect(typeof result).toBe('string');
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});
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it('should prioritize string details over numeric state', () => {
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const result = getSafeGamingText('Details text', 42, 'Playing...');
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expect(result).toBe('Details text'); // String details takes precedence
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expect(typeof result).toBe('string');
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});
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it('should prioritize string state over numeric details', () => {
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const result = getSafeGamingText(42, 'State text', 'Playing...');
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expect(result).toBe('State text'); // String state takes precedence over numeric details
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expect(typeof result).toBe('string');
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});
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it('should convert valid numeric details to string', () => {
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const result = getSafeGamingText(42, undefined, 'Playing...');
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expect(result).toBe('42');
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expect(typeof result).toBe('string');
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});
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it('should handle empty strings correctly', () => {
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const result1 = getSafeGamingText('', 'Playing', 'Playing...');
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expect(result1).toBe('Playing'); // Empty string should fall through to state
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const result2 = getSafeGamingText(' ', 'Playing', 'Playing...');
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expect(result2).toBe('Playing'); // Whitespace-only should fall through to state
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});
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it('should convert gaming.name to string safely', () => {
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const validName = String('Test Game' || '');
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expect(validName).toBe('Test Game');
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expect(typeof validName).toBe('string');
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// In the actual code, we use String(data.gaming.name || '')
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// If data.gaming.name is NaN, (NaN || '') evaluates to '' because NaN is falsy
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const nanName = String(NaN || '');
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expect(nanName).toBe(''); // NaN is falsy, so it falls back to ''
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expect(typeof nanName).toBe('string');
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});
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});
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describe('Custom activities progress handling', () => {
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it('should only render progress bar when progress is a valid number', () => {
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const validProgress = 75;
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const shouldRender = validProgress !== undefined &&
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typeof validProgress === 'number' &&
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!isNaN(validProgress);
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expect(shouldRender).toBe(true);
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});
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it('should not render progress bar when progress is NaN', () => {
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const invalidProgress = NaN;
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const shouldRender = invalidProgress !== undefined &&
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typeof invalidProgress === 'number' &&
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!isNaN(invalidProgress);
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expect(shouldRender).toBe(false);
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});
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it('should not render progress bar when progress is undefined', () => {
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const undefinedProgress = undefined;
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const shouldRender = undefinedProgress !== undefined &&
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typeof undefinedProgress === 'number' &&
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!isNaN(undefinedProgress);
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expect(shouldRender).toBe(false);
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});
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});
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describe('Custom activities dynamic field rendering', () => {
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it('should safely convert valid numeric values to string', () => {
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const value = 42;
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const shouldRender = typeof value === 'string' ||
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(typeof value === 'number' && !isNaN(value));
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expect(shouldRender).toBe(true);
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if (shouldRender) {
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const stringValue = String(value);
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expect(stringValue).toBe('42');
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expect(typeof stringValue).toBe('string');
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}
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});
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it('should not render NaN values', () => {
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const value = NaN;
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const shouldRender = typeof value === 'string' ||
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(typeof value === 'number' && !isNaN(value));
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expect(shouldRender).toBe(false);
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});
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it('should render valid string values', () => {
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const value = 'Test String';
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const shouldRender = typeof value === 'string' ||
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(typeof value === 'number' && !isNaN(value));
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expect(shouldRender).toBe(true);
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if (shouldRender) {
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const stringValue = String(value);
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expect(stringValue).toBe('Test String');
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expect(typeof stringValue).toBe('string');
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}
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});
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it('should render zero as a valid numeric value', () => {
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const value = 0;
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const shouldRender = typeof value === 'string' ||
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(typeof value === 'number' && !isNaN(value));
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expect(shouldRender).toBe(true);
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if (shouldRender) {
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const stringValue = String(value);
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expect(stringValue).toBe('0');
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expect(typeof stringValue).toBe('string');
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}
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});
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});
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});
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@@ -11,7 +11,7 @@ import CurrentlyReading from "./CurrentlyReading";
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// Type definitions for CMS data
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interface TechStackItem {
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id: string;
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name: string;
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name: string | number | null | undefined;
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url?: string;
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icon_url?: string;
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sort: number;
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@@ -30,7 +30,7 @@ interface Hobby {
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id: string;
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key: string;
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icon: string;
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title: string;
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title: string | number | null | undefined;
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description?: string;
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}
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@@ -172,20 +172,59 @@ const About = () => {
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// Use CMS Hobbies if available, otherwise fallback
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const hobbies = hobbiesFromCMS
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? hobbiesFromCMS.map((hobby: Hobby) => ({
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icon: iconMap[hobby.icon] || Code,
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text: hobby.title
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}))
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? hobbiesFromCMS
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.map((hobby: Hobby) => {
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// Convert to string, handling NaN/null/undefined
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const text = hobby.title == null || (typeof hobby.title === 'number' && isNaN(hobby.title))
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? ''
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: String(hobby.title);
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return {
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icon: iconMap[hobby.icon] || Code,
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text
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};
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})
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.filter(h => {
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const isValid = h.text.trim().length > 0;
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if (!isValid && process.env.NODE_ENV === 'development') {
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console.log('[About] Filtered out invalid hobby:', h);
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}
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return isValid;
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})
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: hobbiesFallback;
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// Use CMS Tech Stack if available, otherwise fallback
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const techStack = techStackFromCMS
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? techStackFromCMS.map((cat: TechStackCategory) => ({
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key: cat.key,
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category: cat.name,
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icon: iconMap[cat.icon] || Code,
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items: cat.items.map((item: TechStackItem) => item.name)
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}))
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? techStackFromCMS.map((cat: TechStackCategory) => {
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const items = cat.items
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.map((item: TechStackItem) => {
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// Convert to string, handling NaN/null/undefined
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if (item.name == null || (typeof item.name === 'number' && isNaN(item.name))) {
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if (process.env.NODE_ENV === 'development') {
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console.log('[About] Invalid item.name in category', cat.key, ':', item);
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}
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return '';
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}
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return String(item.name);
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})
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.filter(name => {
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const isValid = name.trim().length > 0;
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if (!isValid && process.env.NODE_ENV === 'development') {
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console.log('[About] Filtered out empty item name in category', cat.key);
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}
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return isValid;
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});
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if (items.length === 0 && process.env.NODE_ENV === 'development') {
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console.warn('[About] Category has no valid items after filtering:', cat.key);
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}
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return {
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key: cat.key,
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category: cat.name,
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icon: iconMap[cat.icon] || Code,
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items
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};
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})
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: techStackFallback;
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return (
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@@ -297,7 +336,7 @@ const About = () => {
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: "bg-liquid-sky/10 border-liquid-sky/30 hover:bg-liquid-sky/20 hover:border-liquid-sky/50"
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}`}
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>
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{item}
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{String(item)}
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</span>
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))}
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</div>
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@@ -336,7 +375,7 @@ const About = () => {
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>
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<hobby.icon size={20} className="text-stone-600" />
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<span className="text-stone-700 font-medium">
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{hobby.text}
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{String(hobby.text)}
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</span>
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</motion.div>
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))}
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@@ -37,8 +37,8 @@ interface StatusData {
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isPlaying: boolean;
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name: string;
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image: string | null;
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state?: string;
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details?: string;
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state?: string | number;
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details?: string | number;
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} | null;
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coding: {
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isActive: boolean;
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@@ -54,6 +54,20 @@ interface StatusData {
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customActivities?: Record<string, CustomActivity>; // Dynamisch!
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}
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/**
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* Safely converts gaming activity details/state to a string, filtering out NaN values.
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* Priority: string details > string state > numeric details > numeric state > fallback
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*/
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function getSafeGamingText(details: string | number | undefined, state: string | number | undefined, fallback: string): string {
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// Check string values first (maintain original precedence)
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if (typeof details === 'string' && details.trim().length > 0) return details;
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if (typeof state === 'string' && state.trim().length > 0) return state;
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// Check numeric values, but filter out NaN
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if (typeof details === 'number' && !isNaN(details)) return String(details);
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if (typeof state === 'number' && !isNaN(state)) return String(state);
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return fallback;
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}
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export default function ActivityFeed() {
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const [data, setData] = useState<StatusData | null>(null);
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const [isExpanded, setIsExpanded] = useState(true);
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@@ -1803,12 +1817,10 @@ export default function ActivityFeed() {
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</span>
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</div>
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<p className="font-bold text-sm text-white truncate mb-0.5">
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{data.gaming.name}
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{String(data.gaming.name || "")}
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</p>
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<p className="text-xs text-indigo-200/60 truncate">
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{data.gaming.details ||
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data.gaming.state ||
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"Playing..."}
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{getSafeGamingText(data.gaming.details, data.gaming.state, "Playing...")}
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</p>
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</div>
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</div>
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@@ -1967,7 +1979,7 @@ export default function ActivityFeed() {
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)}
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{/* Progress Bar wenn vorhanden */}
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{activity.progress !== undefined && typeof activity.progress === 'number' && (
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{activity.progress !== undefined && typeof activity.progress === 'number' && !isNaN(activity.progress) && (
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<div className="mt-1.5">
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<div className="h-1 bg-white/10 rounded-full overflow-hidden">
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<motion.div
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@@ -1990,12 +2002,12 @@ export default function ActivityFeed() {
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return null;
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}
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// Nur einfache Werte rendern
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if (typeof value === 'string' || typeof value === 'number') {
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// Nur einfache Werte rendern, aber NaN ausfiltern
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if (typeof value === 'string' || (typeof value === 'number' && !isNaN(value))) {
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return (
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<div key={key} className="text-[10px] text-white/50 mt-0.5">
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<span className="capitalize">{key.replace(/_/g, ' ')}: </span>
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<span className="font-medium">{value}</span>
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<span className="font-medium">{String(value)}</span>
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</div>
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);
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}
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