') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ', 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); })(); Develop by pascalkknde · Pull Request #3 · tpximpact/code-exercise-java · GitHub
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Develop - #3

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pascalkknde wants to merge 10 commits into
tpximpact:mainfrom
pascalkknde:develop
Open

Develop#3
pascalkknde wants to merge 10 commits into
tpximpact:mainfrom
pascalkknde:develop

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@pascalkknde

@pascalkkndepascalkknde commented Mar 12, 2026

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@pascalkknde
initialise project structure
1312888
- Add documentation: Backend Architecture, Sequence diagram, Deployment diagram
- Add root .gitignore for Java, Node, Docker and IDE artifacts
- Scaffold Spring Boot 3.2 backend via Spring Initializr
- Verify empty app starts on port 8080
@pascalkknde
add ShortenedUrl entity and JPA repository
03d16ba
- ShortenedUrl entity with alias as natural PK, fullUrl, createdAt
- ShortenedUrlRepository extends JpaRepository<ShortenedUrl, String>
- application.yml: H2 file datasource default, Postgres via env vars
- Hibernate ddl-auto: update for schema bootstrapping
@pascalkknde
feat: define domain exception hierarchy
b5a352d
- UrlShortenerExceptions: AliasNotFoundException, AliasAlreadyTakenException
- InvalidUrlException, InvalidAliasException as static inner classes
- Keeps service layer free of exception definitions
@pascalkknde
feat: implement URL shortener service layer
fa0ad2b
- URL validation: scheme (http/https), host presence via java.net.URI
- Alias validation: regex [a-zA-Z0-9_-]{1,50}
- Random alias: 7-char base62 via SecureRandom with 10-attempt retry
- shorten(), findByAlias(), listAll(), delete(), buildShortUrl()
@pascalkknde
test: unit tests for UrlShortenerService
6c6c6e6
- Validation: blank URL, non-http scheme, malformed URL
- Alias: invalid chars, exceeds 50 chars, already taken
- Happy path: random alias generation, custom alias
- findByAlias throws on missing, delete throws on missing
- listAll returns all entries, buildShortUrl concatenates correctly
@pascalkknde
feat: implement REST controller matching OpenAPI spec
dbd54de
- POST /shorten: 201 with shortUrl, supports optional customAlias
- GET /{alias}: 302 redirect to fullUrl
- DELETE /{alias}: 204 no content
- GET /urls: 200 list of all entries
- Java records for ShortenRequest, ShortenResponse, UrlEntry DTOs
@pascalkknde
feat: add global exception handler
fbb678b
- AliasNotFoundException → 404
- AliasAlreadyTakenException, InvalidUrlException, InvalidAliasException → 400
- MethodArgumentNotValidException → 400 with first field error message
- Generic Exception → 500
- Consistent {"error": "..."} response body via ErrorResponse record
@pascalkknde
feat-ui: add typed API client module
9bc30cb
- UrlEntry interface matching OpenAPI response schema
- handleResponse<T>: centralised error parsing, throws with API error message
- api.shorten(), api.listAll(), api.deleteAlias()
- NEXT_PUBLIC_API_URL env var with typeof window SSR guard
@pascalkknde
feat-ui: ShortenForm client component
bdc3152
- Controlled inputs for fullUrl and customAlias
- Client-side empty URL validation before API call
- Loading spinner state during API request
- Error alert (role=alert) with API error message
- Success alert (role=status) with short URL link and copy button
- Enter key submits from either input field
@pascalkknde
feat-ui: UrlTable client component
9d465a4
 - Renders list of all shortened URLs with alias and truncated fullUrl
- Copy button with 2s "✓" feedback per entry
- Delete button with loading state per row
- Returns null when urls list is empty
- aria-label on all action buttons for accessibility
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@pascalkknde