mirror of
https://github.com/DayuanJiang/next-ai-draw-io.git
synced 2026-01-02 14:22:28 +08:00
150eb1ff63
- Add Biome as formatter and linter (replaces Prettier) - Configure Husky + lint-staged for pre-commit hooks - Add VS Code settings for format on save - Ignore components/ui/ (shadcn generated code) - Remove semicolons, use 4-space indent - Reformat all files to new style
577 lines
22 KiB
TypeScript
577 lines
22 KiB
TypeScript
"use client"
|
|
|
|
import { useChat } from "@ai-sdk/react"
|
|
import { DefaultChatTransport } from "ai"
|
|
import {
|
|
CheckCircle,
|
|
PanelRightClose,
|
|
PanelRightOpen,
|
|
Settings,
|
|
} from "lucide-react"
|
|
import Image from "next/image"
|
|
import Link from "next/link"
|
|
import type React from "react"
|
|
import { useEffect, useRef, useState } from "react"
|
|
import { flushSync } from "react-dom"
|
|
import { FaGithub } from "react-icons/fa"
|
|
import { Toaster } from "sonner"
|
|
import { ButtonWithTooltip } from "@/components/button-with-tooltip"
|
|
import { ChatInput } from "@/components/chat-input"
|
|
import {
|
|
SettingsDialog,
|
|
STORAGE_ACCESS_CODE_KEY,
|
|
} from "@/components/settings-dialog"
|
|
import { useDiagram } from "@/contexts/diagram-context"
|
|
import { formatXML, replaceNodes, validateMxCellStructure } from "@/lib/utils"
|
|
import { ChatMessageDisplay } from "./chat-message-display"
|
|
|
|
interface ChatPanelProps {
|
|
isVisible: boolean
|
|
onToggleVisibility: () => void
|
|
drawioUi: "min" | "sketch"
|
|
onToggleDrawioUi: () => void
|
|
isMobile?: boolean
|
|
}
|
|
|
|
export default function ChatPanel({
|
|
isVisible,
|
|
onToggleVisibility,
|
|
drawioUi,
|
|
onToggleDrawioUi,
|
|
isMobile = false,
|
|
}: ChatPanelProps) {
|
|
const {
|
|
loadDiagram: onDisplayChart,
|
|
handleExport: onExport,
|
|
handleExportWithoutHistory,
|
|
resolverRef,
|
|
chartXML,
|
|
clearDiagram,
|
|
} = useDiagram()
|
|
|
|
const onFetchChart = (saveToHistory = true) => {
|
|
return Promise.race([
|
|
new Promise<string>((resolve) => {
|
|
if (resolverRef && "current" in resolverRef) {
|
|
resolverRef.current = resolve
|
|
}
|
|
if (saveToHistory) {
|
|
onExport()
|
|
} else {
|
|
handleExportWithoutHistory()
|
|
}
|
|
}),
|
|
new Promise<string>((_, reject) =>
|
|
setTimeout(
|
|
() =>
|
|
reject(
|
|
new Error(
|
|
"Chart export timed out after 10 seconds",
|
|
),
|
|
),
|
|
10000,
|
|
),
|
|
),
|
|
])
|
|
}
|
|
|
|
const [files, setFiles] = useState<File[]>([])
|
|
const [showHistory, setShowHistory] = useState(false)
|
|
const [showSettingsDialog, setShowSettingsDialog] = useState(false)
|
|
const [accessCodeRequired, setAccessCodeRequired] = useState(false)
|
|
const [input, setInput] = useState("")
|
|
|
|
// Check if access code is required on mount
|
|
useEffect(() => {
|
|
fetch("/api/config")
|
|
.then((res) => res.json())
|
|
.then((data) => setAccessCodeRequired(data.accessCodeRequired))
|
|
.catch(() => setAccessCodeRequired(false))
|
|
}, [])
|
|
|
|
// Generate a unique session ID for Langfuse tracing
|
|
const [sessionId, setSessionId] = useState(
|
|
() => `session-${Date.now()}-${Math.random().toString(36).slice(2, 9)}`,
|
|
)
|
|
|
|
// Store XML snapshots for each user message (keyed by message index)
|
|
const xmlSnapshotsRef = useRef<Map<number, string>>(new Map())
|
|
|
|
// Ref to track latest chartXML for use in callbacks (avoids stale closure)
|
|
const chartXMLRef = useRef(chartXML)
|
|
useEffect(() => {
|
|
chartXMLRef.current = chartXML
|
|
}, [chartXML])
|
|
|
|
const { messages, sendMessage, addToolResult, status, error, setMessages } =
|
|
useChat({
|
|
transport: new DefaultChatTransport({
|
|
api: "/api/chat",
|
|
}),
|
|
async onToolCall({ toolCall }) {
|
|
if (toolCall.toolName === "display_diagram") {
|
|
const { xml } = toolCall.input as { xml: string }
|
|
|
|
const validationError = validateMxCellStructure(xml)
|
|
|
|
if (validationError) {
|
|
addToolResult({
|
|
tool: "display_diagram",
|
|
toolCallId: toolCall.toolCallId,
|
|
output: validationError,
|
|
})
|
|
} else {
|
|
addToolResult({
|
|
tool: "display_diagram",
|
|
toolCallId: toolCall.toolCallId,
|
|
output: "Successfully displayed the diagram.",
|
|
})
|
|
}
|
|
} else if (toolCall.toolName === "edit_diagram") {
|
|
const { edits } = toolCall.input as {
|
|
edits: Array<{ search: string; replace: string }>
|
|
}
|
|
|
|
let currentXml = ""
|
|
try {
|
|
console.log("[edit_diagram] Starting...")
|
|
// Use chartXML from ref directly - more reliable than export
|
|
// especially on Vercel where DrawIO iframe may have latency issues
|
|
// Using ref to avoid stale closure in callback
|
|
const cachedXML = chartXMLRef.current
|
|
if (cachedXML) {
|
|
currentXml = cachedXML
|
|
console.log(
|
|
"[edit_diagram] Using cached chartXML, length:",
|
|
currentXml.length,
|
|
)
|
|
} else {
|
|
// Fallback to export only if no cached XML
|
|
console.log(
|
|
"[edit_diagram] No cached XML, fetching from DrawIO...",
|
|
)
|
|
currentXml = await onFetchChart(false)
|
|
console.log(
|
|
"[edit_diagram] Got XML from export, length:",
|
|
currentXml.length,
|
|
)
|
|
}
|
|
|
|
const { replaceXMLParts } = await import("@/lib/utils")
|
|
const editedXml = replaceXMLParts(currentXml, edits)
|
|
|
|
onDisplayChart(editedXml)
|
|
|
|
addToolResult({
|
|
tool: "edit_diagram",
|
|
toolCallId: toolCall.toolCallId,
|
|
output: `Successfully applied ${edits.length} edit(s) to the diagram.`,
|
|
})
|
|
console.log("[edit_diagram] Success")
|
|
} catch (error) {
|
|
console.error("[edit_diagram] Failed:", error)
|
|
|
|
const errorMessage =
|
|
error instanceof Error
|
|
? error.message
|
|
: String(error)
|
|
|
|
addToolResult({
|
|
tool: "edit_diagram",
|
|
toolCallId: toolCall.toolCallId,
|
|
output: `Edit failed: ${errorMessage}
|
|
|
|
Current diagram XML:
|
|
\`\`\`xml
|
|
${currentXml || "No XML available"}
|
|
\`\`\`
|
|
|
|
Please retry with an adjusted search pattern or use display_diagram if retries are exhausted.`,
|
|
})
|
|
}
|
|
}
|
|
},
|
|
onError: (error) => {
|
|
// Silence access code error in console since it's handled by UI
|
|
if (!error.message.includes("Invalid or missing access code")) {
|
|
console.error("Chat error:", error)
|
|
}
|
|
|
|
// Add system message for error so it can be cleared
|
|
setMessages((currentMessages) => {
|
|
const errorMessage = {
|
|
id: `error-${Date.now()}`,
|
|
role: "system" as const,
|
|
content: error.message,
|
|
parts: [{ type: "text" as const, text: error.message }],
|
|
}
|
|
return [...currentMessages, errorMessage]
|
|
})
|
|
|
|
if (error.message.includes("Invalid or missing access code")) {
|
|
// Show settings button and open dialog to help user fix it
|
|
setAccessCodeRequired(true)
|
|
setShowSettingsDialog(true)
|
|
}
|
|
},
|
|
})
|
|
|
|
const messagesEndRef = useRef<HTMLDivElement>(null)
|
|
|
|
useEffect(() => {
|
|
if (messagesEndRef.current) {
|
|
messagesEndRef.current.scrollIntoView({ behavior: "smooth" })
|
|
}
|
|
}, [messages])
|
|
|
|
const onFormSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
|
|
e.preventDefault()
|
|
const isProcessing = status === "streaming" || status === "submitted"
|
|
if (input.trim() && !isProcessing) {
|
|
try {
|
|
let chartXml = await onFetchChart()
|
|
chartXml = formatXML(chartXml)
|
|
|
|
// Update ref directly to avoid race condition with React's async state update
|
|
// This ensures edit_diagram has the correct XML before AI responds
|
|
chartXMLRef.current = chartXml
|
|
|
|
const parts: any[] = [{ type: "text", text: input }]
|
|
|
|
if (files.length > 0) {
|
|
for (const file of files) {
|
|
const reader = new FileReader()
|
|
const dataUrl = await new Promise<string>((resolve) => {
|
|
reader.onload = () =>
|
|
resolve(reader.result as string)
|
|
reader.readAsDataURL(file)
|
|
})
|
|
|
|
parts.push({
|
|
type: "file",
|
|
url: dataUrl,
|
|
mediaType: file.type,
|
|
})
|
|
}
|
|
}
|
|
|
|
// Save XML snapshot for this message (will be at index = current messages.length)
|
|
const messageIndex = messages.length
|
|
xmlSnapshotsRef.current.set(messageIndex, chartXml)
|
|
|
|
const accessCode =
|
|
localStorage.getItem(STORAGE_ACCESS_CODE_KEY) || ""
|
|
sendMessage(
|
|
{ parts },
|
|
{
|
|
body: {
|
|
xml: chartXml,
|
|
sessionId,
|
|
},
|
|
headers: {
|
|
"x-access-code": accessCode,
|
|
},
|
|
},
|
|
)
|
|
|
|
setInput("")
|
|
setFiles([])
|
|
} catch (error) {
|
|
console.error("Error fetching chart data:", error)
|
|
}
|
|
}
|
|
}
|
|
|
|
const handleInputChange = (
|
|
e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>,
|
|
) => {
|
|
setInput(e.target.value)
|
|
}
|
|
|
|
const handleFileChange = (newFiles: File[]) => {
|
|
setFiles(newFiles)
|
|
}
|
|
|
|
const handleRegenerate = async (messageIndex: number) => {
|
|
const isProcessing = status === "streaming" || status === "submitted"
|
|
if (isProcessing) return
|
|
|
|
// Find the user message before this assistant message
|
|
let userMessageIndex = messageIndex - 1
|
|
while (
|
|
userMessageIndex >= 0 &&
|
|
messages[userMessageIndex].role !== "user"
|
|
) {
|
|
userMessageIndex--
|
|
}
|
|
|
|
if (userMessageIndex < 0) return
|
|
|
|
const userMessage = messages[userMessageIndex]
|
|
const userParts = userMessage.parts
|
|
|
|
// Get the text from the user message
|
|
const textPart = userParts?.find((p: any) => p.type === "text")
|
|
if (!textPart) return
|
|
|
|
// Get the saved XML snapshot for this user message
|
|
const savedXml = xmlSnapshotsRef.current.get(userMessageIndex)
|
|
if (!savedXml) {
|
|
console.error(
|
|
"No saved XML snapshot for message index:",
|
|
userMessageIndex,
|
|
)
|
|
return
|
|
}
|
|
|
|
// Restore the diagram to the saved state
|
|
onDisplayChart(savedXml)
|
|
|
|
// Update ref directly to ensure edit_diagram has the correct XML
|
|
chartXMLRef.current = savedXml
|
|
|
|
// Clean up snapshots for messages after the user message (they will be removed)
|
|
for (const key of xmlSnapshotsRef.current.keys()) {
|
|
if (key > userMessageIndex) {
|
|
xmlSnapshotsRef.current.delete(key)
|
|
}
|
|
}
|
|
|
|
// Remove the user message AND assistant message onwards (sendMessage will re-add the user message)
|
|
// Use flushSync to ensure state update is processed synchronously before sending
|
|
const newMessages = messages.slice(0, userMessageIndex)
|
|
flushSync(() => {
|
|
setMessages(newMessages)
|
|
})
|
|
|
|
// Now send the message after state is guaranteed to be updated
|
|
sendMessage(
|
|
{ parts: userParts },
|
|
{
|
|
body: {
|
|
xml: savedXml,
|
|
sessionId,
|
|
},
|
|
},
|
|
)
|
|
}
|
|
|
|
const handleEditMessage = async (messageIndex: number, newText: string) => {
|
|
const isProcessing = status === "streaming" || status === "submitted"
|
|
if (isProcessing) return
|
|
|
|
const message = messages[messageIndex]
|
|
if (!message || message.role !== "user") return
|
|
|
|
// Get the saved XML snapshot for this user message
|
|
const savedXml = xmlSnapshotsRef.current.get(messageIndex)
|
|
if (!savedXml) {
|
|
console.error(
|
|
"No saved XML snapshot for message index:",
|
|
messageIndex,
|
|
)
|
|
return
|
|
}
|
|
|
|
// Restore the diagram to the saved state
|
|
onDisplayChart(savedXml)
|
|
|
|
// Update ref directly to ensure edit_diagram has the correct XML
|
|
chartXMLRef.current = savedXml
|
|
|
|
// Clean up snapshots for messages after the user message (they will be removed)
|
|
for (const key of xmlSnapshotsRef.current.keys()) {
|
|
if (key > messageIndex) {
|
|
xmlSnapshotsRef.current.delete(key)
|
|
}
|
|
}
|
|
|
|
// Create new parts with updated text
|
|
const newParts = message.parts?.map((part: any) => {
|
|
if (part.type === "text") {
|
|
return { ...part, text: newText }
|
|
}
|
|
return part
|
|
}) || [{ type: "text", text: newText }]
|
|
|
|
// Remove the user message AND assistant message onwards (sendMessage will re-add the user message)
|
|
// Use flushSync to ensure state update is processed synchronously before sending
|
|
const newMessages = messages.slice(0, messageIndex)
|
|
flushSync(() => {
|
|
setMessages(newMessages)
|
|
})
|
|
|
|
// Now send the edited message after state is guaranteed to be updated
|
|
sendMessage(
|
|
{ parts: newParts },
|
|
{
|
|
body: {
|
|
xml: savedXml,
|
|
sessionId,
|
|
},
|
|
},
|
|
)
|
|
}
|
|
|
|
// Collapsed view (desktop only)
|
|
if (!isVisible && !isMobile) {
|
|
return (
|
|
<div className="h-full flex flex-col items-center pt-4 bg-card border border-border/30 rounded-xl">
|
|
<ButtonWithTooltip
|
|
tooltipContent="Show chat panel (Ctrl+B)"
|
|
variant="ghost"
|
|
size="icon"
|
|
onClick={onToggleVisibility}
|
|
className="hover:bg-accent transition-colors"
|
|
>
|
|
<PanelRightOpen className="h-5 w-5 text-muted-foreground" />
|
|
</ButtonWithTooltip>
|
|
<div
|
|
className="text-sm font-medium text-muted-foreground mt-8 tracking-wide"
|
|
style={{
|
|
writingMode: "vertical-rl",
|
|
transform: "rotate(180deg)",
|
|
}}
|
|
>
|
|
AI Chat
|
|
</div>
|
|
</div>
|
|
)
|
|
}
|
|
|
|
// Full view
|
|
return (
|
|
<div className="h-full flex flex-col bg-card shadow-soft animate-slide-in-right rounded-xl border border-border/30 relative">
|
|
<Toaster
|
|
position="bottom-center"
|
|
richColors
|
|
style={{ position: "absolute" }}
|
|
/>
|
|
{/* Header */}
|
|
<header
|
|
className={`${isMobile ? "px-3 py-2" : "px-5 py-4"} border-b border-border/50`}
|
|
>
|
|
<div className="flex items-center justify-between">
|
|
<div className="flex items-center gap-2">
|
|
<div className="flex items-center gap-2">
|
|
<Image
|
|
src="/favicon.ico"
|
|
alt="Next AI Drawio"
|
|
width={isMobile ? 24 : 28}
|
|
height={isMobile ? 24 : 28}
|
|
className="rounded"
|
|
/>
|
|
<h1
|
|
className={`${isMobile ? "text-sm" : "text-base"} font-semibold tracking-tight whitespace-nowrap`}
|
|
>
|
|
Next AI Drawio
|
|
</h1>
|
|
</div>
|
|
{!isMobile && (
|
|
<Link
|
|
href="/about"
|
|
className="text-sm text-muted-foreground hover:text-foreground transition-colors ml-2"
|
|
>
|
|
About
|
|
</Link>
|
|
)}
|
|
{!isMobile && (
|
|
<ButtonWithTooltip
|
|
tooltipContent="Recent generation failures were caused by our AI provider's infrastructure issue, not the app code. After extensive debugging, I've switched providers and observed 6 hours of stability. If issues persist, please report on GitHub."
|
|
variant="ghost"
|
|
size="icon"
|
|
className="h-6 w-6 text-green-500 hover:text-green-600"
|
|
>
|
|
<CheckCircle className="h-4 w-4" />
|
|
</ButtonWithTooltip>
|
|
)}
|
|
</div>
|
|
<div className="flex items-center gap-1">
|
|
<a
|
|
href="https://github.com/DayuanJiang/next-ai-draw-io"
|
|
target="_blank"
|
|
rel="noopener noreferrer"
|
|
className="p-2 rounded-lg text-muted-foreground hover:text-foreground hover:bg-accent transition-colors"
|
|
>
|
|
<FaGithub
|
|
className={`${isMobile ? "w-4 h-4" : "w-5 h-5"}`}
|
|
/>
|
|
</a>
|
|
{accessCodeRequired && (
|
|
<ButtonWithTooltip
|
|
tooltipContent="Settings"
|
|
variant="ghost"
|
|
size="icon"
|
|
onClick={() => setShowSettingsDialog(true)}
|
|
className="hover:bg-accent"
|
|
>
|
|
<Settings
|
|
className={`${isMobile ? "h-4 w-4" : "h-5 w-5"} text-muted-foreground`}
|
|
/>
|
|
</ButtonWithTooltip>
|
|
)}
|
|
{!isMobile && (
|
|
<ButtonWithTooltip
|
|
tooltipContent="Hide chat panel (Ctrl+B)"
|
|
variant="ghost"
|
|
size="icon"
|
|
onClick={onToggleVisibility}
|
|
className="hover:bg-accent"
|
|
>
|
|
<PanelRightClose className="h-5 w-5 text-muted-foreground" />
|
|
</ButtonWithTooltip>
|
|
)}
|
|
</div>
|
|
</div>
|
|
</header>
|
|
|
|
{/* Messages */}
|
|
<main className="flex-1 w-full overflow-hidden">
|
|
<ChatMessageDisplay
|
|
messages={messages}
|
|
setInput={setInput}
|
|
setFiles={handleFileChange}
|
|
sessionId={sessionId}
|
|
onRegenerate={handleRegenerate}
|
|
onEditMessage={handleEditMessage}
|
|
/>
|
|
</main>
|
|
|
|
{/* Input */}
|
|
<footer
|
|
className={`${isMobile ? "p-2" : "p-4"} border-t border-border/50 bg-card/50`}
|
|
>
|
|
<ChatInput
|
|
input={input}
|
|
status={status}
|
|
onSubmit={onFormSubmit}
|
|
onChange={handleInputChange}
|
|
onClearChat={() => {
|
|
setMessages([])
|
|
clearDiagram()
|
|
setSessionId(
|
|
`session-${Date.now()}-${Math.random()
|
|
.toString(36)
|
|
.slice(2, 9)}`,
|
|
)
|
|
xmlSnapshotsRef.current.clear()
|
|
}}
|
|
files={files}
|
|
onFileChange={handleFileChange}
|
|
showHistory={showHistory}
|
|
onToggleHistory={setShowHistory}
|
|
sessionId={sessionId}
|
|
error={error}
|
|
drawioUi={drawioUi}
|
|
onToggleDrawioUi={onToggleDrawioUi}
|
|
/>
|
|
</footer>
|
|
|
|
<SettingsDialog
|
|
open={showSettingsDialog}
|
|
onOpenChange={setShowSettingsDialog}
|
|
/>
|
|
</div>
|
|
)
|
|
}
|