import { createSignal, Show, For } from "solid-js"; import { ChatContainer, ChatContainerContent, ChatContainerScrollAnchor, Message, MessageAvatar, MessageContent, MessageActions, PromptInput, PromptInputTextarea, PromptInputActions, ConversationList, ModelSwitcher, PromptSuggestion, ScrollButton, Button, Separator, Context, ContextTrigger, ContextContent, ContextContentHeader, ContextContentBody, ContextContentFooter, ContextInputUsage, ContextOutputUsage, Reasoning, ReasoningTrigger, ReasoningContent, Tool, ThinkingBar, ChatConfig, } from "../index"; import type { ProseSize } from "../index"; import type { ConversationSummary, ConversationGroup, ModelOption, } from "../types"; import { Attachments, Attachment, AttachmentPreview, AttachmentInfo, AttachmentRemove, } from "../components/attachments"; import type { AttachmentData } from "../components/attachments"; import { ResizablePanelGroup, ResizablePanel, ResizableHandle } from "../ui/resizable"; import { Copy, ThumbsUp, ThumbsDown, RefreshCw, ArrowUp, Paperclip, Globe, Mic, Pencil, Trash, Plus, MoreHorizontal, } from "lucide-solid"; const scope = { type: "document" as const }; const groups: ConversationGroup[] = [ { id: "today", name: "Today", sortOrder: 0, createdAt: "2026-04-10" }, { id: "yesterday", name: "Yesterday", sortOrder: 1, createdAt: "2026-04-09" }, { id: "week", name: "Previous 7 Days", sortOrder: 2, createdAt: "2026-04-05", }, ]; const conversations: ConversationSummary[] = [ { id: "1", title: "SolidJS reactivity vs React hooks", groupId: "today", scope, messageCount: 8, lastMessageAt: "2026-04-10T15:30:00Z", updatedAt: "2026-04-10T15:30:00Z", }, { id: "2", title: "Tailwind v4 migration guide", groupId: "today", scope, messageCount: 14, lastMessageAt: "2026-04-10T11:20:00Z", updatedAt: "2026-04-10T11:20:00Z", }, { id: "3", title: "Chrome extension content scripts", groupId: "today", scope, messageCount: 6, lastMessageAt: "2026-04-10T09:00:00Z", updatedAt: "2026-04-10T09:00:00Z", }, { id: "4", title: "Vite HMR not working with web workers", groupId: "yesterday", scope, messageCount: 11, lastMessageAt: "2026-04-09T17:45:00Z", updatedAt: "2026-04-09T17:45:00Z", }, { id: "5", title: "IndexedDB vs OPFS performance", groupId: "yesterday", scope, messageCount: 9, lastMessageAt: "2026-04-09T14:00:00Z", updatedAt: "2026-04-09T14:00:00Z", }, { id: "6", title: "WebSocket reconnection strategies", groupId: "week", scope, messageCount: 7, lastMessageAt: "2026-04-07T10:30:00Z", updatedAt: "2026-04-07T10:30:00Z", }, { id: "7", title: "TypeScript discriminated unions", groupId: "week", scope, messageCount: 16, lastMessageAt: "2026-04-06T16:20:00Z", updatedAt: "2026-04-06T16:20:00Z", }, { id: "8", title: "CSS container queries", groupId: "week", scope, messageCount: 5, lastMessageAt: "2026-04-05T13:00:00Z", updatedAt: "2026-04-05T13:00:00Z", }, ]; const models: ModelOption[] = [ { id: "claude-4", name: "Claude 4 Opus", provider: "Anthropic" }, { id: "claude-4-sonnet", name: "Claude 4 Sonnet", provider: "Anthropic" }, { id: "gpt-4o", name: "GPT-4o", provider: "OpenAI" }, ]; const assistantResponse1 = `**SolidJS** takes a fundamentally different approach to reactivity compared to React hooks. ### Signals vs useState In SolidJS, signals are **fine-grained reactive primitives** that track their own subscribers. When a signal updates, only the specific DOM nodes that read that signal are updated — no virtual DOM diffing required. \`\`\`typescript // SolidJS — runs once, DOM updates surgically const [count, setCount] = createSignal(0); return
{count()}
; // only this text node re-renders // React — entire component re-renders const [count, setCount] = useState(0); return{count}
; // whole function re-executes \`\`\` ### Key Differences 1. **No re-renders** — SolidJS components run once; only reactive expressions update 2. **No dependency arrays** — \`createEffect\` auto-tracks dependencies 3. **No stale closures** — signals are getter functions, always current 4. **Derived values** are just functions, no \`useMemo\` needed ### When to choose SolidJS - Performance-critical UIs with frequent updates - Projects where you want predictable reactivity - When you're tired of \`useCallback\` and dependency arrays`; const assistantResponse2 = `\`createEffect\` in SolidJS is synchronous by default and automatically tracks all reactive dependencies read inside it — no dependency array needed. \`\`\`typescript // SolidJS — auto-tracks count and name createEffect(() => { console.log(count(), name()); }); // React — must manually declare deps useEffect(() => { console.log(count, name); }, [count, name]); // easy to get wrong \`\`\` The biggest win: **no stale closure bugs**. Since \`count()\` is a function call, you always get the latest value. In React, closures capture the value at render time, which leads to subtle bugs with intervals, timeouts, and event handlers.`; /** The full chat application scene, shared by the Full Chat App story and the * theme editor's live preview. `class` controls the root sizing (defaults to * full-viewport; the editor passes `h-full` to fit its canvas). */ export function ChatScene(props: { class?: string }) { const [activeId, setActiveId] = createSignal("1"); const [modelId, setModelId] = createSignal("claude-4"); const [inputValue, setInputValue] = createSignal(""); const [proseSize, setProseSize] = createSignal