feat: implement English Style Converter
- SvelteKit project scaffolded with TypeScript - Type definitions for Style, StyleCategory, ConversionRequest, ConversionResponse, LLMConfig - Style definitions with 6 categories and 25 sub-styles - Intensity mapping (1-5) with prompt modifier placeholders - LLM client using OpenAI-compatible API (Ollama default) - POST /api/convert endpoint with input validation - Animated loading modal with per-letter animations - Main page UI with category/style selectors, intensity slider - Copy to clipboard, collapsible prompt display - Vitest tests for styles, LLM prompt building, and API validation - Environment configuration for LLM settings
This commit is contained in:
27
src/app.css
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27
src/app.css
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@@ -0,0 +1,27 @@
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@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
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:global(body) {
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margin: 0;
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padding: 0;
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font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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background: #f9fafb;
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color: #1f2937;
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-webkit-font-smoothing: antialiased;
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-moz-osx-font-smoothing: grayscale;
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}
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:global(*) {
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box-sizing: border-box;
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}
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:global(h1, h2, h3, h4, h5, h6) {
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margin: 0;
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}
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:global(button) {
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font-family: inherit;
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}
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:global(textarea) {
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font-family: inherit;
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}
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@@ -1,5 +1,7 @@
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<!doctype html>
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<html lang="en">
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<head>
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<title>English Style Converter</title>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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@@ -1 +0,0 @@
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<svg xmlns="http://www.w3.org/2000/svg" width="107" height="128" viewBox="0 0 107 128"><title>svelte-logo</title><path d="M94.157 22.819c-10.4-14.885-30.94-19.297-45.792-9.835L22.282 29.608A29.92 29.92 0 0 0 8.764 49.65a31.5 31.5 0 0 0 3.108 20.231 30 30 0 0 0-4.477 11.183 31.9 31.9 0 0 0 5.448 24.116c10.402 14.887 30.942 19.297 45.791 9.835l26.083-16.624A29.92 29.92 0 0 0 98.235 78.35a31.53 31.53 0 0 0-3.105-20.232 30 30 0 0 0 4.474-11.182 31.88 31.88 0 0 0-5.447-24.116" style="fill:#ff3e00"/><path d="M45.817 106.582a20.72 20.72 0 0 1-22.237-8.243 19.17 19.17 0 0 1-3.277-14.503 18 18 0 0 1 .624-2.435l.49-1.498 1.337.981a33.6 33.6 0 0 0 10.203 5.098l.97.294-.09.968a5.85 5.85 0 0 0 1.052 3.878 6.24 6.24 0 0 0 6.695 2.485 5.8 5.8 0 0 0 1.603-.704L69.27 76.28a5.43 5.43 0 0 0 2.45-3.631 5.8 5.8 0 0 0-.987-4.371 6.24 6.24 0 0 0-6.698-2.487 5.7 5.7 0 0 0-1.6.704l-9.953 6.345a19 19 0 0 1-5.296 2.326 20.72 20.72 0 0 1-22.237-8.243 19.17 19.17 0 0 1-3.277-14.502 17.99 17.99 0 0 1 8.13-12.052l26.081-16.623a19 19 0 0 1 5.3-2.329 20.72 20.72 0 0 1 22.237 8.243 19.17 19.17 0 0 1 3.277 14.503 18 18 0 0 1-.624 2.435l-.49 1.498-1.337-.98a33.6 33.6 0 0 0-10.203-5.1l-.97-.294.09-.968a5.86 5.86 0 0 0-1.052-3.878 6.24 6.24 0 0 0-6.696-2.485 5.8 5.8 0 0 0-1.602.704L37.73 51.72a5.42 5.42 0 0 0-2.449 3.63 5.79 5.79 0 0 0 .986 4.372 6.24 6.24 0 0 0 6.698 2.486 5.8 5.8 0 0 0 1.602-.704l9.952-6.342a19 19 0 0 1 5.295-2.328 20.72 20.72 0 0 1 22.237 8.242 19.17 19.17 0 0 1 3.277 14.503 18 18 0 0 1-8.13 12.053l-26.081 16.622a19 19 0 0 1-5.3 2.328" style="fill:#fff"/></svg>
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Before Width: | Height: | Size: 1.5 KiB |
256
src/lib/components/LoadingModal.svelte
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256
src/lib/components/LoadingModal.svelte
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@@ -0,0 +1,256 @@
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<script lang="ts">
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const loadingWords = [
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'Bamboozling',
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'Razzmatazzing',
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'Transmogrifying',
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'Alakazamming',
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'Prestidigitating',
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'Metamorphosizing',
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'Enchanting',
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'Voodooing',
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'Witchcrafting',
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'Sorcerizing',
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'Spellcasting',
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'Hocus-pocusing',
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'Incantating',
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'Conjurating',
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'Charmweaving'
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];
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const colors = [
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'coral',
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'teal',
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'violet',
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'amber',
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'emerald',
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'rose',
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'skyblue',
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'fuchsia',
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'orange',
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'indigo'
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];
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const colorValues: Record<string, string> = {
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coral: '#FF6B6B',
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teal: '#2EC4B6',
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violet: '#9B5DE5',
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amber: '#F5B041',
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emerald: '#2ECC71',
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rose: '#E74C6F',
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skyblue: '#5DADE2',
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fuchsia: '#D63384',
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orange: '#F39C12',
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indigo: '#5B2C6F'
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};
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const animationStyles = [
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'slide-up',
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'bounce-in',
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'drop-in',
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'scale-up',
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'fade-rotate',
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'spring-left'
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];
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let currentWordIndex = $state(0);
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let currentColor = $state(colors[0]);
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let currentAnimation = $state('slide-up');
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let letters = $state<string[]>([]);
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$effect(() => {
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const interval = setInterval(() => {
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currentWordIndex = Math.floor(Math.random() * loadingWords.length);
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currentColor = colors[Math.floor(Math.random() * colors.length)];
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currentAnimation = animationStyles[Math.floor(Math.random() * animationStyles.length)];
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letters = loadingWords[currentWordIndex].split('');
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}, 2000);
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// Initialize immediately
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currentWordIndex = Math.floor(Math.random() * loadingWords.length);
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currentColor = colors[Math.floor(Math.random() * colors.length)];
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currentAnimation = animationStyles[Math.floor(Math.random() * animationStyles.length)];
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letters = loadingWords[currentWordIndex].split('');
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return () => clearInterval(interval);
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});
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</script>
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<div class="modal-overlay" role="dialog" aria-label="Loading">
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<div class="modal-content">
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<div class="loading-letters" style="color: {colorValues[currentColor]}">
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{#each letters as letter, i}
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<span
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class="letter {currentAnimation}"
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style="--delay: {i * 60}ms; --color: {colorValues[currentColor]}"
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>
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{letter}
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</span>
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{/each}
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</div>
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<p class="loading-subtitle">Transforming your text...</p>
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</div>
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</div>
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<style>
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.modal-overlay {
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position: fixed;
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inset: 0;
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background: rgba(255, 255, 255, 0.85);
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backdrop-filter: blur(8px);
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display: flex;
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align-items: center;
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justify-content: center;
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z-index: 1000;
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animation: fade-in 0.2s ease-out;
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}
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.modal-content {
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text-align: center;
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padding: 3rem;
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}
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.loading-letters {
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font-size: clamp(2rem, 5vw, 3.5rem);
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font-weight: 700;
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letter-spacing: 0.05em;
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min-height: 4rem;
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display: flex;
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justify-content: center;
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flex-wrap: wrap;
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}
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.letter {
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display: inline-block;
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opacity: 0;
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animation-fill-mode: forwards;
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animation-duration: 0.4s;
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animation-delay: var(--delay);
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}
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/* Slide up */
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.slide-up {
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animation-name: slide-up;
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}
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@keyframes slide-up {
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from {
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opacity: 0;
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transform: translateY(30px);
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}
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to {
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opacity: 1;
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transform: translateY(0);
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}
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}
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/* Bounce in */
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.bounce-in {
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animation-name: bounce-in;
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}
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@keyframes bounce-in {
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0% {
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opacity: 0;
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transform: translateY(-40px);
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}
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60% {
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opacity: 1;
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transform: translateY(8px);
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}
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100% {
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opacity: 1;
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transform: translateY(0);
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}
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}
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/* Drop in */
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.drop-in {
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animation-name: drop-in;
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}
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@keyframes drop-in {
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0% {
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opacity: 0;
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transform: translateY(-60px);
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}
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70% {
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opacity: 1;
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transform: translateY(4px);
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}
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85% {
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transform: translateY(-2px);
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}
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100% {
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opacity: 1;
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transform: translateY(0);
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}
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}
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/* Scale up */
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.scale-up {
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animation-name: scale-up;
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}
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@keyframes scale-up {
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from {
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opacity: 0;
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transform: scale(0.3);
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}
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to {
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opacity: 1;
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transform: scale(1);
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}
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}
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/* Fade rotate */
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.fade-rotate {
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animation-name: fade-rotate;
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}
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@keyframes fade-rotate {
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from {
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opacity: 0;
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transform: rotate(-15deg) scale(0.5);
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}
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to {
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opacity: 1;
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transform: rotate(0deg) scale(1);
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}
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}
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/* Spring from left */
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.spring-left {
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animation-name: spring-left;
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}
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@keyframes spring-left {
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0% {
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opacity: 0;
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transform: translateX(-40px);
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}
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70% {
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opacity: 1;
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transform: translateX(5px);
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}
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100% {
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opacity: 1;
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transform: translateX(0);
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}
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}
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.loading-subtitle {
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margin-top: 1rem;
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color: #6b7280;
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font-size: 1rem;
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font-weight: 400;
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}
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@keyframes fade-in {
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from {
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opacity: 0;
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}
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to {
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opacity: 1;
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}
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}
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</style>
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34
src/lib/llm.test.ts
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34
src/lib/llm.test.ts
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@@ -0,0 +1,34 @@
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import { describe, it, expect } from 'vitest';
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import { buildSystemPrompt, buildUserMessage } from '$lib/llm';
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describe('buildSystemPrompt', () => {
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it('fills in {style} placeholder from intensity instruction', () => {
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const result = buildSystemPrompt(
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'Rewrite in a sarcastic, snarky tone with biting wit',
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'rewrite strongly in a {style} style'
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);
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expect(result).toContain('rewrite strongly in a Rewrite in a sarcastic, snarky tone with biting wit style');
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expect(result).not.toContain('{style}');
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});
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it('includes the style modifier on its own line', () => {
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const result = buildSystemPrompt('some modifier', 'lightly hint at a {style} tone');
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expect(result).toContain('some modifier');
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});
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it('includes the core instruction text', () => {
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const result = buildSystemPrompt('test', 'rewrite with a {style} tone');
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expect(result).toContain('You are an expert English style converter');
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expect(result).toContain('Output ONLY the converted text');
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});
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});
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describe('buildUserMessage', () => {
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it('returns the text as-is', () => {
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expect(buildUserMessage('Hello world')).toBe('Hello world');
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});
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it('preserves whitespace', () => {
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expect(buildUserMessage(' spaced ')).toBe(' spaced ');
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});
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});
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77
src/lib/llm.ts
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77
src/lib/llm.ts
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@@ -0,0 +1,77 @@
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import { env } from '$env/dynamic/private';
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import type { LLMConfig } from './types';
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const DEFAULT_CONFIG: LLMConfig = {
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baseUrl: 'http://localhost:11434/v1',
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apiKey: 'ollama',
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model: 'llama3'
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};
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function getConfig(): LLMConfig {
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return {
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baseUrl: env.OPENAI_BASE_URL || DEFAULT_CONFIG.baseUrl,
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apiKey: env.OPENAI_API_KEY || DEFAULT_CONFIG.apiKey,
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model: env.OPENAI_MODEL || DEFAULT_CONFIG.model
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};
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}
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export interface ConvertResult {
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converted: string;
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systemPrompt: string;
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userMessage: string;
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}
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export function buildSystemPrompt(styleModifier: string, intensityInstruction: string): string {
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const intensityFilled = intensityInstruction.replace('{style}', styleModifier);
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return `You are an expert English style converter.
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${intensityFilled}.
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${styleModifier}
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Preserve the core meaning but fully transform the voice and tone.
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Output ONLY the converted text — no explanations, no labels, no quotes.`;
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}
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export function buildUserMessage(text: string): string {
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return text;
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}
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export async function convertText(
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text: string,
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styleModifier: string,
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intensityInstruction: string,
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overrides?: Partial<LLMConfig>
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): Promise<ConvertResult> {
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const merged: LLMConfig = { ...DEFAULT_CONFIG, ...getConfig(), ...overrides };
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const systemPrompt = buildSystemPrompt(styleModifier, intensityInstruction);
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const userMessage = buildUserMessage(text);
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const response = await fetch(`${merged.baseUrl}/chat/completions`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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Authorization: `Bearer ${merged.apiKey}`
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},
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body: JSON.stringify({
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model: merged.model,
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messages: [
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{ role: 'system', content: systemPrompt },
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{ role: 'user', content: userMessage }
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],
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temperature: 0.8
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})
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});
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if (!response.ok) {
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const errorText = await response.text().catch(() => 'Unknown error');
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throw new Error(`LLM request failed (${response.status}): ${errorText}`);
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}
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const data = await response.json();
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const converted = data.choices?.[0]?.message?.content?.trim();
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if (!converted) {
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throw new Error('LLM returned empty response');
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}
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return { converted, systemPrompt, userMessage };
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}
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112
src/lib/styles.test.ts
Normal file
112
src/lib/styles.test.ts
Normal file
@@ -0,0 +1,112 @@
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import { describe, it, expect } from 'vitest';
|
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import {
|
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styles,
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categories,
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intensityMap,
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getStylesByCategory,
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getStyleById,
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getCategoryById,
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getIntensityConfig
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} from '$lib/styles';
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describe('styles', () => {
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it('all styles have valid ids', () => {
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for (const style of styles) {
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expect(style.id).toBeTruthy();
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expect(typeof style.id).toBe('string');
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}
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});
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it('all styles have valid promptModifiers', () => {
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for (const style of styles) {
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expect(style.promptModifier).toBeTruthy();
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expect(typeof style.promptModifier).toBe('string');
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expect(style.promptModifier.length).toBeGreaterThan(5);
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}
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});
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|
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it('all styles reference existing categories', () => {
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const categoryIds = new Set(categories.map((c) => c.id));
|
||||
for (const style of styles) {
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expect(categoryIds.has(style.categoryId)).toBe(true);
|
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}
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});
|
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|
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it('all style ids are unique', () => {
|
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const ids = styles.map((s) => s.id);
|
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const uniqueIds = new Set(ids);
|
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expect(ids.length).toBe(uniqueIds.size);
|
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});
|
||||
});
|
||||
|
||||
describe('getStylesByCategory', () => {
|
||||
it('returns styles for a known category', () => {
|
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const result = getStylesByCategory('general');
|
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expect(result.length).toBeGreaterThan(0);
|
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for (const style of result) {
|
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expect(style.categoryId).toBe('general');
|
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}
|
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});
|
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|
||||
it('returns empty array for unknown category', () => {
|
||||
const result = getStylesByCategory('nonexistent');
|
||||
expect(result).toEqual([]);
|
||||
});
|
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|
||||
it('general category has 6 styles', () => {
|
||||
const result = getStylesByCategory('general');
|
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expect(result.length).toBe(6);
|
||||
});
|
||||
});
|
||||
|
||||
describe('getStyleById', () => {
|
||||
it('returns a style for a valid id', () => {
|
||||
const result = getStyleById('sarcastic');
|
||||
expect(result).toBeDefined();
|
||||
expect(result!.id).toBe('sarcastic');
|
||||
});
|
||||
|
||||
it('returns undefined for unknown id', () => {
|
||||
const result = getStyleById('nonexistent');
|
||||
expect(result).toBeUndefined();
|
||||
});
|
||||
});
|
||||
|
||||
describe('getCategoryById', () => {
|
||||
it('returns a category for a valid id', () => {
|
||||
const result = getCategoryById('general');
|
||||
expect(result).toBeDefined();
|
||||
expect(result!.id).toBe('general');
|
||||
});
|
||||
|
||||
it('returns undefined for unknown id', () => {
|
||||
const result = getCategoryById('nonexistent');
|
||||
expect(result).toBeUndefined();
|
||||
});
|
||||
});
|
||||
|
||||
describe('getIntensityConfig', () => {
|
||||
it('returns config for valid intensity levels 1-5', () => {
|
||||
for (let i = 1; i <= 5; i++) {
|
||||
const config = getIntensityConfig(i);
|
||||
expect(config).toBeDefined();
|
||||
expect(config!.label).toBeTruthy();
|
||||
expect(config!.instruction).toContain('{style}');
|
||||
}
|
||||
});
|
||||
|
||||
it('returns undefined for intensity 0', () => {
|
||||
expect(getIntensityConfig(0)).toBeUndefined();
|
||||
});
|
||||
|
||||
it('returns undefined for intensity 6', () => {
|
||||
expect(getIntensityConfig(6)).toBeUndefined();
|
||||
});
|
||||
|
||||
it('all intensity instructions contain {style} placeholder', () => {
|
||||
for (let i = 1; i <= 5; i++) {
|
||||
const config = getIntensityConfig(i);
|
||||
expect(config!.instruction).toContain('{style}');
|
||||
}
|
||||
});
|
||||
});
|
||||
@@ -40,7 +40,7 @@ export const styles: Style[] = [
|
||||
{ id: 'gen-z', label: 'Gen Z Slang', categoryId: 'fun', promptModifier: 'Rewrite in Gen Z slang with no cap, fr, and modern internet vernacular' },
|
||||
|
||||
// Game of Thrones
|
||||
{ id: 'got-kings-landing', label: "King's Landing", categoryId: 'got', promptModifier: 'Rewrite as a scheming noble from King'\''s Landing would speak' },
|
||||
{ id: 'got-kings-landing', label: "King's Landing", categoryId: 'got', promptModifier: 'Rewrite as a scheming noble from Kings Landing would speak' },
|
||||
{ id: 'got-wildlings', label: 'Wildlings', categoryId: 'got', promptModifier: 'Rewrite in the rough, free-spirited manner of the Free Folk wildlings' },
|
||||
{ id: 'got-winterfell', label: 'Winterfell', categoryId: 'got', promptModifier: 'Rewrite with the honor-bound stoicism of a Stark from Winterfell' },
|
||||
|
||||
|
||||
@@ -1,11 +1,11 @@
|
||||
<script lang="ts">
|
||||
import favicon from '$lib/assets/favicon.svg';
|
||||
import '../app.css';
|
||||
|
||||
let { children } = $props();
|
||||
</script>
|
||||
|
||||
<svelte:head>
|
||||
<link rel="icon" href={favicon} />
|
||||
<link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>✨</text></svg>" />
|
||||
</svelte:head>
|
||||
|
||||
{@render children()}
|
||||
{@render children()}
|
||||
@@ -1,2 +1,445 @@
|
||||
<h1>Welcome to SvelteKit</h1>
|
||||
<p>Visit <a href="https://svelte.dev/docs/kit">svelte.dev/docs/kit</a> to read the documentation</p>
|
||||
<script lang="ts">
|
||||
import { categories, styles, getStylesByCategory, getIntensityConfig } from '$lib/styles';
|
||||
import type { Style, StyleCategory, ConversionResponse } from '$lib/types';
|
||||
import LoadingModal from '$lib/components/LoadingModal.svelte';
|
||||
|
||||
let inputText = $state('');
|
||||
let selectedCategoryId = $state('');
|
||||
let selectedStyleId = $state('');
|
||||
let intensity = $state(3);
|
||||
let outputText = $state('');
|
||||
let loading = $state(false);
|
||||
let error = $state('');
|
||||
let systemPrompt = $state('');
|
||||
let userMessage = $state('');
|
||||
let showPrompt = $state(false);
|
||||
let copied = $state(false);
|
||||
|
||||
let availableStyles = $derived(
|
||||
selectedCategoryId ? getStylesByCategory(selectedCategoryId) : []
|
||||
);
|
||||
|
||||
let canConvert = $derived(
|
||||
inputText.trim().length > 0 && selectedStyleId.length > 0 && !loading
|
||||
);
|
||||
|
||||
let intensityLabel = $derived(getIntensityConfig(intensity)?.label ?? '');
|
||||
|
||||
function onCategoryChange() {
|
||||
selectedStyleId = '';
|
||||
if (availableStyles.length === 1) {
|
||||
selectedStyleId = availableStyles[0].id;
|
||||
}
|
||||
}
|
||||
|
||||
async function handleConvert() {
|
||||
if (!canConvert) return;
|
||||
|
||||
loading = true;
|
||||
error = '';
|
||||
outputText = '';
|
||||
systemPrompt = '';
|
||||
userMessage = '';
|
||||
showPrompt = false;
|
||||
|
||||
try {
|
||||
const res = await fetch('/api/convert', {
|
||||
method: 'POST',
|
||||
headers: { 'Content-Type': 'application/json' },
|
||||
body: JSON.stringify({
|
||||
text: inputText,
|
||||
styleId: selectedStyleId,
|
||||
intensity
|
||||
})
|
||||
});
|
||||
|
||||
const data = await res.json();
|
||||
|
||||
if (!res.ok) {
|
||||
throw new Error(data.error || 'Conversion failed');
|
||||
}
|
||||
|
||||
const result: ConversionResponse = data;
|
||||
outputText = result.converted;
|
||||
systemPrompt = result.systemPrompt;
|
||||
userMessage = result.userMessage;
|
||||
} catch (err) {
|
||||
error = err instanceof Error ? err.message : 'Something went wrong';
|
||||
} finally {
|
||||
loading = false;
|
||||
}
|
||||
}
|
||||
|
||||
async function handleCopy() {
|
||||
try {
|
||||
await navigator.clipboard.writeText(outputText);
|
||||
copied = true;
|
||||
setTimeout(() => (copied = false), 2000);
|
||||
} catch {
|
||||
// Fallback: select text
|
||||
const textarea = document.querySelector('.output-text');
|
||||
if (textarea instanceof HTMLElement) {
|
||||
const range = document.createRange();
|
||||
range.selectNodeContents(textarea);
|
||||
const sel = window.getSelection();
|
||||
sel?.removeAllRanges();
|
||||
sel?.addRange(range);
|
||||
}
|
||||
}
|
||||
}
|
||||
</script>
|
||||
|
||||
<main class="container">
|
||||
<h1 class="title">English Style Converter</h1>
|
||||
<p class="subtitle">Transform your text into different English styles and tones</p>
|
||||
|
||||
<div class="card">
|
||||
<div class="form-group">
|
||||
<label for="input-text">Your Text</label>
|
||||
<textarea
|
||||
id="input-text"
|
||||
bind:value={inputText}
|
||||
placeholder="Enter the English text you want to convert..."
|
||||
rows="5"
|
||||
disabled={loading}
|
||||
></textarea>
|
||||
</div>
|
||||
|
||||
<div class="selectors">
|
||||
<div class="form-group">
|
||||
<label for="category">Style Category</label>
|
||||
<select
|
||||
id="category"
|
||||
bind:value={selectedCategoryId}
|
||||
onchange={onCategoryChange}
|
||||
disabled={loading}
|
||||
>
|
||||
<option value="">Choose a category...</option>
|
||||
{#each categories as cat}
|
||||
<option value={cat.id}>{cat.emoji} {cat.label}</option>
|
||||
{/each}
|
||||
</select>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="style">Style</label>
|
||||
<select id="style" bind:value={selectedStyleId} disabled={loading || !selectedCategoryId}>
|
||||
{#if !selectedCategoryId}
|
||||
<option value="">Select a category first...</option>
|
||||
{:else if availableStyles.length === 0}
|
||||
<option value="">No styles available</option>
|
||||
{:else}
|
||||
<option value="">Choose a style...</option>
|
||||
{#each availableStyles as style}
|
||||
<option value={style.id}>{style.label}</option>
|
||||
{/each}
|
||||
{/if}
|
||||
</select>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="intensity">
|
||||
Intensity: <span class="intensity-label">{intensityLabel || 'Strong'}</span>
|
||||
</label>
|
||||
<div class="slider-row">
|
||||
<span class="slider-end">Subtle</span>
|
||||
<input
|
||||
id="intensity"
|
||||
type="range"
|
||||
min="1"
|
||||
max="5"
|
||||
step="1"
|
||||
bind:value={intensity}
|
||||
disabled={loading}
|
||||
/>
|
||||
<span class="slider-end">Maximum</span>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button class="convert-btn" onclick={handleConvert} disabled={!canConvert}>
|
||||
{#if loading}
|
||||
Converting...
|
||||
{:else}
|
||||
✨ Convert
|
||||
{/if}
|
||||
</button>
|
||||
</div>
|
||||
|
||||
{#if error}
|
||||
<div class="output-card error-card">
|
||||
<p class="error-text">⚠️ {error}</p>
|
||||
</div>
|
||||
{/if}
|
||||
|
||||
{#if outputText}
|
||||
<div class="output-card">
|
||||
<div class="output-header">
|
||||
<h3>Result</h3>
|
||||
<button class="copy-btn" onclick={handleCopy}>
|
||||
{#if copied}
|
||||
✓ Copied!
|
||||
{:else}
|
||||
📋 Copy
|
||||
{/if}
|
||||
</button>
|
||||
</div>
|
||||
<div class="output-text">{outputText}</div>
|
||||
</div>
|
||||
|
||||
<div class="prompt-section">
|
||||
<button class="prompt-toggle" onclick={() => (showPrompt = !showPrompt)}>
|
||||
{showPrompt ? '▼' : '▶'} Show prompt
|
||||
</button>
|
||||
{#if showPrompt}
|
||||
<div class="prompt-content">
|
||||
<div class="prompt-block">
|
||||
<h4>System Prompt</h4>
|
||||
<pre>{systemPrompt}</pre>
|
||||
</div>
|
||||
<div class="prompt-block">
|
||||
<h4>User Message</h4>
|
||||
<pre>{userMessage}</pre>
|
||||
</div>
|
||||
</div>
|
||||
{/if}
|
||||
</div>
|
||||
{/if}
|
||||
</main>
|
||||
|
||||
{#if loading}
|
||||
<LoadingModal />
|
||||
{/if}
|
||||
|
||||
<style>
|
||||
.container {
|
||||
max-width: 680px;
|
||||
margin: 0 auto;
|
||||
padding: 2rem 1.5rem;
|
||||
min-height: 100vh;
|
||||
}
|
||||
|
||||
.title {
|
||||
font-size: 2rem;
|
||||
font-weight: 800;
|
||||
color: #1f2937;
|
||||
text-align: center;
|
||||
margin-bottom: 0.25rem;
|
||||
}
|
||||
|
||||
.subtitle {
|
||||
text-align: center;
|
||||
color: #6b7280;
|
||||
margin-bottom: 2rem;
|
||||
font-size: 1.05rem;
|
||||
}
|
||||
|
||||
.card {
|
||||
background: #ffffff;
|
||||
border: 1px solid #e5e7eb;
|
||||
border-radius: 12px;
|
||||
padding: 1.5rem;
|
||||
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
|
||||
}
|
||||
|
||||
.form-group {
|
||||
margin-bottom: 1.25rem;
|
||||
}
|
||||
|
||||
.form-group label {
|
||||
display: block;
|
||||
font-weight: 600;
|
||||
font-size: 0.9rem;
|
||||
color: #374151;
|
||||
margin-bottom: 0.4rem;
|
||||
}
|
||||
|
||||
textarea,
|
||||
select {
|
||||
width: 100%;
|
||||
padding: 0.75rem;
|
||||
border: 1px solid #d1d5db;
|
||||
border-radius: 8px;
|
||||
font-size: 0.95rem;
|
||||
font-family: inherit;
|
||||
background: #fafafa;
|
||||
color: #1f2937;
|
||||
transition: border-color 0.2s;
|
||||
}
|
||||
|
||||
textarea:focus,
|
||||
select:focus {
|
||||
outline: none;
|
||||
border-color: #3b82f6;
|
||||
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
|
||||
}
|
||||
|
||||
textarea {
|
||||
resize: vertical;
|
||||
min-height: 100px;
|
||||
}
|
||||
|
||||
.selectors {
|
||||
display: grid;
|
||||
grid-template-columns: 1fr 1fr;
|
||||
gap: 1rem;
|
||||
}
|
||||
|
||||
.intensity-label {
|
||||
color: #3b82f6;
|
||||
font-weight: 700;
|
||||
}
|
||||
|
||||
.slider-row {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 0.75rem;
|
||||
}
|
||||
|
||||
.slider-end {
|
||||
font-size: 0.8rem;
|
||||
color: #9ca3af;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
input[type='range'] {
|
||||
flex: 1;
|
||||
accent-color: #3b82f6;
|
||||
height: 6px;
|
||||
}
|
||||
|
||||
.convert-btn {
|
||||
width: 100%;
|
||||
padding: 0.85rem;
|
||||
background: #3b82f6;
|
||||
color: #ffffff;
|
||||
border: none;
|
||||
border-radius: 8px;
|
||||
font-size: 1.05rem;
|
||||
font-weight: 700;
|
||||
cursor: pointer;
|
||||
transition: background 0.2s, opacity 0.2s;
|
||||
}
|
||||
|
||||
.convert-btn:hover:not(:disabled) {
|
||||
background: #2563eb;
|
||||
}
|
||||
|
||||
.convert-btn:disabled {
|
||||
opacity: 0.5;
|
||||
cursor: not-allowed;
|
||||
}
|
||||
|
||||
.output-card {
|
||||
margin-top: 1.5rem;
|
||||
background: #ffffff;
|
||||
border: 1px solid #e5e7eb;
|
||||
border-radius: 12px;
|
||||
padding: 1.25rem;
|
||||
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
|
||||
}
|
||||
|
||||
.error-card {
|
||||
border-color: #fca5a5;
|
||||
background: #fef2f2;
|
||||
}
|
||||
|
||||
.error-text {
|
||||
color: #dc2626;
|
||||
font-weight: 500;
|
||||
}
|
||||
|
||||
.output-header {
|
||||
display: flex;
|
||||
justify-content: space-between;
|
||||
align-items: center;
|
||||
margin-bottom: 0.75rem;
|
||||
}
|
||||
|
||||
.output-header h3 {
|
||||
margin: 0;
|
||||
font-size: 1.1rem;
|
||||
color: #1f2937;
|
||||
}
|
||||
|
||||
.copy-btn {
|
||||
padding: 0.35rem 0.75rem;
|
||||
background: #f3f4f6;
|
||||
border: 1px solid #d1d5db;
|
||||
border-radius: 6px;
|
||||
font-size: 0.85rem;
|
||||
cursor: pointer;
|
||||
transition: background 0.2s;
|
||||
}
|
||||
|
||||
.copy-btn:hover {
|
||||
background: #e5e7eb;
|
||||
}
|
||||
|
||||
.output-text {
|
||||
white-space: pre-wrap;
|
||||
line-height: 1.6;
|
||||
color: #1f2937;
|
||||
font-size: 1rem;
|
||||
}
|
||||
|
||||
.prompt-section {
|
||||
margin-top: 1rem;
|
||||
}
|
||||
|
||||
.prompt-toggle {
|
||||
background: none;
|
||||
border: none;
|
||||
color: #3b82f6;
|
||||
font-size: 0.9rem;
|
||||
font-weight: 600;
|
||||
cursor: pointer;
|
||||
padding: 0.5rem 0;
|
||||
}
|
||||
|
||||
.prompt-toggle:hover {
|
||||
text-decoration: underline;
|
||||
}
|
||||
|
||||
.prompt-content {
|
||||
margin-top: 0.75rem;
|
||||
}
|
||||
|
||||
.prompt-block {
|
||||
margin-bottom: 1rem;
|
||||
}
|
||||
|
||||
.prompt-block h4 {
|
||||
font-size: 0.85rem;
|
||||
color: #6b7280;
|
||||
margin-bottom: 0.4rem;
|
||||
text-transform: uppercase;
|
||||
letter-spacing: 0.05em;
|
||||
}
|
||||
|
||||
.prompt-block pre {
|
||||
background: #f9fafb;
|
||||
border: 1px solid #e5e7eb;
|
||||
border-radius: 8px;
|
||||
padding: 0.75rem;
|
||||
font-size: 0.85rem;
|
||||
white-space: pre-wrap;
|
||||
word-break: break-word;
|
||||
color: #374151;
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
@media (max-width: 600px) {
|
||||
.selectors {
|
||||
grid-template-columns: 1fr;
|
||||
}
|
||||
|
||||
.container {
|
||||
padding: 1rem;
|
||||
}
|
||||
|
||||
.title {
|
||||
font-size: 1.5rem;
|
||||
}
|
||||
}
|
||||
</style>
|
||||
62
src/routes/api/convert/+server.ts
Normal file
62
src/routes/api/convert/+server.ts
Normal file
@@ -0,0 +1,62 @@
|
||||
import { json } from '@sveltejs/kit';
|
||||
import type { RequestHandler } from './$types';
|
||||
import { getStyleById, getIntensityConfig } from '$lib/styles';
|
||||
import { convertText } from '$lib/llm';
|
||||
import type { ConversionRequest, ConversionResponse } from '$lib/types';
|
||||
|
||||
export const POST: RequestHandler = async ({ request }) => {
|
||||
let body: ConversionRequest;
|
||||
try {
|
||||
body = await request.json();
|
||||
} catch {
|
||||
return json({ error: 'Invalid JSON body' }, { status: 400 });
|
||||
}
|
||||
|
||||
const { text, styleId, intensity } = body;
|
||||
|
||||
// Validate text
|
||||
if (!text || typeof text !== 'string' || text.trim().length === 0) {
|
||||
return json({ error: 'Text is required and must be non-empty' }, { status: 400 });
|
||||
}
|
||||
|
||||
// Validate styleId
|
||||
if (!styleId || typeof styleId !== 'string') {
|
||||
return json({ error: 'styleId is required' }, { status: 400 });
|
||||
}
|
||||
|
||||
const style = getStyleById(styleId);
|
||||
if (!style) {
|
||||
return json({ error: `Unknown style: ${styleId}` }, { status: 400 });
|
||||
}
|
||||
|
||||
// Validate intensity
|
||||
if (typeof intensity !== 'number' || !Number.isInteger(intensity) || intensity < 1 || intensity > 5) {
|
||||
return json({ error: 'Intensity must be an integer between 1 and 5' }, { status: 400 });
|
||||
}
|
||||
|
||||
const intensityConfig = getIntensityConfig(intensity);
|
||||
if (!intensityConfig) {
|
||||
return json({ error: 'Invalid intensity level' }, { status: 400 });
|
||||
}
|
||||
|
||||
try {
|
||||
const result = convertText(text, style.promptModifier, intensityConfig.instruction);
|
||||
|
||||
// Await the promise
|
||||
const { converted, systemPrompt, userMessage } = await result;
|
||||
|
||||
const response: ConversionResponse = {
|
||||
original: text,
|
||||
converted,
|
||||
styleId,
|
||||
intensity,
|
||||
systemPrompt,
|
||||
userMessage
|
||||
};
|
||||
|
||||
return json(response);
|
||||
} catch (err) {
|
||||
const message = err instanceof Error ? err.message : 'LLM call failed';
|
||||
return json({ error: `Failed to convert text: ${message}` }, { status: 502 });
|
||||
}
|
||||
};
|
||||
69
src/routes/api/convert/server.test.ts
Normal file
69
src/routes/api/convert/server.test.ts
Normal file
@@ -0,0 +1,69 @@
|
||||
import { describe, it, expect, vi } from 'vitest';
|
||||
|
||||
// We test the validation logic by importing the handler indirectly
|
||||
// Since SvelteKit route handlers are hard to unit test directly,
|
||||
// we test the underlying functions that handle validation
|
||||
|
||||
import { getStyleById, getIntensityConfig } from '$lib/styles';
|
||||
|
||||
describe('API validation logic', () => {
|
||||
it('returns undefined for invalid style id', () => {
|
||||
expect(getStyleById('nonexistent')).toBeUndefined();
|
||||
});
|
||||
|
||||
it('returns valid style for known id', () => {
|
||||
expect(getStyleById('sarcastic')).toBeDefined();
|
||||
});
|
||||
|
||||
it('returns undefined for out-of-range intensity', () => {
|
||||
expect(getIntensityConfig(0)).toBeUndefined();
|
||||
expect(getIntensityConfig(6)).toBeUndefined();
|
||||
});
|
||||
|
||||
it('returns valid config for in-range intensity', () => {
|
||||
for (let i = 1; i <= 5; i++) {
|
||||
expect(getIntensityConfig(i)).toBeDefined();
|
||||
}
|
||||
});
|
||||
|
||||
describe('request body validation', () => {
|
||||
it('rejects empty text', () => {
|
||||
const text = '' as string;
|
||||
expect(!text || text.trim().length === 0).toBe(true);
|
||||
});
|
||||
|
||||
it('rejects whitespace-only text', () => {
|
||||
const text = ' ';
|
||||
expect(text.trim().length === 0).toBe(true);
|
||||
});
|
||||
|
||||
it('rejects non-integer intensity', () => {
|
||||
const intensity = 3.5;
|
||||
expect(!Number.isInteger(intensity)).toBe(true);
|
||||
});
|
||||
|
||||
it('rejects intensity below 1', () => {
|
||||
const intensity = 0;
|
||||
expect(intensity < 1).toBe(true);
|
||||
});
|
||||
|
||||
it('rejects intensity above 5', () => {
|
||||
const intensity = 6;
|
||||
expect(intensity > 5).toBe(true);
|
||||
});
|
||||
|
||||
it('accepts valid inputs', () => {
|
||||
const text = 'Hello world';
|
||||
const styleId = 'sarcastic';
|
||||
const intensity = 3;
|
||||
const style = getStyleById(styleId);
|
||||
const intensityConfig = getIntensityConfig(intensity);
|
||||
|
||||
expect(text.trim().length > 0).toBe(true);
|
||||
expect(style).toBeDefined();
|
||||
expect(Number.isInteger(intensity)).toBe(true);
|
||||
expect(intensity >= 1 && intensity <= 5).toBe(true);
|
||||
expect(intensityConfig).toBeDefined();
|
||||
});
|
||||
});
|
||||
});
|
||||
Reference in New Issue
Block a user