mirror of
https://github.com/DayuanJiang/next-ai-draw-io.git
synced 2026-01-03 06:42:27 +08:00
b1bc1a6dc6
- Save and restore chat messages, XML snapshots, session ID, and diagram XML to localStorage - Restore diagram when DrawIO becomes ready (using new onLoad callback) - Change close protection default to false since auto-save handles persistence - Clear localStorage when clearing chat - Handle edge cases: undefined edit fields, empty chartXML, missing access code header
746 lines
40 KiB
TypeScript
746 lines
40 KiB
TypeScript
"use client"
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import type { UIMessage } from "ai"
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import {
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Check,
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ChevronDown,
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ChevronUp,
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Copy,
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Cpu,
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Minus,
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Pencil,
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Plus,
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RotateCcw,
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ThumbsDown,
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ThumbsUp,
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X,
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} from "lucide-react"
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import Image from "next/image"
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import { useCallback, useEffect, useRef, useState } from "react"
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import ReactMarkdown from "react-markdown"
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import { ScrollArea } from "@/components/ui/scroll-area"
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import {
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convertToLegalXml,
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replaceNodes,
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validateMxCellStructure,
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} from "@/lib/utils"
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import ExamplePanel from "./chat-example-panel"
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import { CodeBlock } from "./code-block"
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interface EditPair {
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search: string
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replace: string
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}
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// Tool part interface for type safety
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interface ToolPartLike {
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type: string
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toolCallId: string
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state?: string
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input?: { xml?: string; edits?: EditPair[] } & Record<string, unknown>
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output?: string
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}
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function EditDiffDisplay({ edits }: { edits: EditPair[] }) {
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return (
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<div className="space-y-3">
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{edits.map((edit, index) => (
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<div
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key={`${(edit.search || "").slice(0, 50)}-${(edit.replace || "").slice(0, 50)}-${index}`}
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className="rounded-lg border border-border/50 overflow-hidden bg-background/50"
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>
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<div className="px-3 py-1.5 bg-muted/40 border-b border-border/30 flex items-center gap-2">
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<span className="text-xs font-medium text-muted-foreground">
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Change {index + 1}
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</span>
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</div>
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<div className="divide-y divide-border/30">
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{/* Search (old) */}
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<div className="px-3 py-2">
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<div className="flex items-center gap-1.5 mb-1.5">
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<Minus className="w-3 h-3 text-red-500" />
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<span className="text-[10px] font-medium text-red-600 uppercase tracking-wide">
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Remove
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</span>
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</div>
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<pre className="text-[11px] font-mono text-red-700 bg-red-50 rounded px-2 py-1.5 overflow-x-auto whitespace-pre-wrap break-all">
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{edit.search}
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</pre>
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</div>
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{/* Replace (new) */}
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<div className="px-3 py-2">
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<div className="flex items-center gap-1.5 mb-1.5">
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<Plus className="w-3 h-3 text-green-500" />
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<span className="text-[10px] font-medium text-green-600 uppercase tracking-wide">
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Add
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</span>
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</div>
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<pre className="text-[11px] font-mono text-green-700 bg-green-50 rounded px-2 py-1.5 overflow-x-auto whitespace-pre-wrap break-all">
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{edit.replace}
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</pre>
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</div>
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</div>
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</div>
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))}
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</div>
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)
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}
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import { useDiagram } from "@/contexts/diagram-context"
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const getMessageTextContent = (message: UIMessage): string => {
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if (!message.parts) return ""
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return message.parts
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.filter((part) => part.type === "text")
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.map((part) => (part as { text: string }).text)
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.join("\n")
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}
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interface ChatMessageDisplayProps {
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messages: UIMessage[]
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setInput: (input: string) => void
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setFiles: (files: File[]) => void
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sessionId?: string
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onRegenerate?: (messageIndex: number) => void
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onEditMessage?: (messageIndex: number, newText: string) => void
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}
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export function ChatMessageDisplay({
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messages,
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setInput,
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setFiles,
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sessionId,
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onRegenerate,
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onEditMessage,
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}: ChatMessageDisplayProps) {
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const { chartXML, loadDiagram: onDisplayChart } = useDiagram()
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const messagesEndRef = useRef<HTMLDivElement>(null)
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const previousXML = useRef<string>("")
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const processedToolCalls = useRef<Set<string>>(new Set())
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const [expandedTools, setExpandedTools] = useState<Record<string, boolean>>(
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{},
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)
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const [copiedMessageId, setCopiedMessageId] = useState<string | null>(null)
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const [copyFailedMessageId, setCopyFailedMessageId] = useState<
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string | null
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>(null)
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const [feedback, setFeedback] = useState<Record<string, "good" | "bad">>({})
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const [editingMessageId, setEditingMessageId] = useState<string | null>(
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null,
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)
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const editTextareaRef = useRef<HTMLTextAreaElement>(null)
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const [editText, setEditText] = useState<string>("")
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const copyMessageToClipboard = async (messageId: string, text: string) => {
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try {
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await navigator.clipboard.writeText(text)
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setCopiedMessageId(messageId)
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setTimeout(() => setCopiedMessageId(null), 2000)
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} catch (err) {
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console.error("Failed to copy message:", err)
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setCopyFailedMessageId(messageId)
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setTimeout(() => setCopyFailedMessageId(null), 2000)
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}
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}
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const submitFeedback = async (messageId: string, value: "good" | "bad") => {
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// Toggle off if already selected
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if (feedback[messageId] === value) {
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setFeedback((prev) => {
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const next = { ...prev }
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delete next[messageId]
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return next
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})
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return
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}
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setFeedback((prev) => ({ ...prev, [messageId]: value }))
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try {
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await fetch("/api/log-feedback", {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({
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messageId,
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feedback: value,
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sessionId,
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}),
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})
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} catch (error) {
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console.warn("Failed to log feedback:", error)
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}
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}
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const handleDisplayChart = useCallback(
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(xml: string) => {
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const currentXml = xml || ""
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const convertedXml = convertToLegalXml(currentXml)
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if (convertedXml !== previousXML.current) {
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// If chartXML is empty, use the converted XML directly
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const replacedXML = chartXML
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? replaceNodes(chartXML, convertedXml)
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: convertedXml
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const validationError = validateMxCellStructure(replacedXML)
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if (!validationError) {
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previousXML.current = convertedXml
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onDisplayChart(replacedXML)
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} else {
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console.log(
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"[ChatMessageDisplay] XML validation failed:",
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validationError,
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)
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}
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}
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},
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[chartXML, onDisplayChart],
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)
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useEffect(() => {
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if (messagesEndRef.current) {
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messagesEndRef.current.scrollIntoView({ behavior: "smooth" })
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}
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}, [messages])
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useEffect(() => {
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if (editingMessageId && editTextareaRef.current) {
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editTextareaRef.current.focus()
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}
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}, [editingMessageId])
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useEffect(() => {
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messages.forEach((message) => {
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if (message.parts) {
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message.parts.forEach((part) => {
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if (part.type?.startsWith("tool-")) {
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const toolPart = part as ToolPartLike
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const { toolCallId, state, input } = toolPart
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if (state === "output-available") {
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setExpandedTools((prev) => ({
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...prev,
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[toolCallId]: false,
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}))
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}
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if (
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part.type === "tool-display_diagram" &&
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input?.xml
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) {
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const xml = input.xml as string
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if (
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state === "input-streaming" ||
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state === "input-available"
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) {
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handleDisplayChart(xml)
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} else if (
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state === "output-available" &&
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!processedToolCalls.current.has(toolCallId)
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) {
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handleDisplayChart(xml)
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processedToolCalls.current.add(toolCallId)
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}
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}
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}
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})
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}
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})
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}, [messages, handleDisplayChart])
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const renderToolPart = (part: ToolPartLike) => {
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const callId = part.toolCallId
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const { state, input, output } = part
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const isExpanded = expandedTools[callId] ?? true
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const toolName = part.type?.replace("tool-", "")
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const toggleExpanded = () => {
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setExpandedTools((prev) => ({
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...prev,
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[callId]: !isExpanded,
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}))
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}
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const getToolDisplayName = (name: string) => {
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switch (name) {
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case "display_diagram":
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return "Generate Diagram"
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case "edit_diagram":
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return "Edit Diagram"
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default:
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return name
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}
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}
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return (
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<div
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key={callId}
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className="my-3 rounded-xl border border-border/60 bg-muted/30 overflow-hidden"
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>
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<div className="flex items-center justify-between px-4 py-3 bg-muted/50">
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<div className="flex items-center gap-2">
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<div className="w-6 h-6 rounded-md bg-primary/10 flex items-center justify-center">
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<Cpu className="w-3.5 h-3.5 text-primary" />
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</div>
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<span className="text-sm font-medium text-foreground/80">
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{getToolDisplayName(toolName)}
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</span>
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</div>
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<div className="flex items-center gap-2">
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{state === "input-streaming" && (
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<div className="h-4 w-4 border-2 border-primary border-t-transparent rounded-full animate-spin" />
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)}
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{state === "output-available" && (
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<span className="text-xs font-medium text-green-600 bg-green-50 px-2 py-0.5 rounded-full">
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Complete
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</span>
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)}
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{state === "output-error" && (
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<span className="text-xs font-medium text-red-600 bg-red-50 px-2 py-0.5 rounded-full">
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Error
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</span>
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)}
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{input && Object.keys(input).length > 0 && (
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<button
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type="button"
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onClick={toggleExpanded}
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className="p-1 rounded hover:bg-muted transition-colors"
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>
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{isExpanded ? (
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<ChevronUp className="w-4 h-4 text-muted-foreground" />
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) : (
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<ChevronDown className="w-4 h-4 text-muted-foreground" />
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)}
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</button>
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)}
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</div>
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</div>
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{input && isExpanded && (
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<div className="px-4 py-3 border-t border-border/40 bg-muted/20">
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{typeof input === "object" && input.xml ? (
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<CodeBlock code={input.xml} language="xml" />
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) : typeof input === "object" &&
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input.edits &&
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Array.isArray(input.edits) ? (
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<EditDiffDisplay edits={input.edits} />
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) : typeof input === "object" &&
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Object.keys(input).length > 0 ? (
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<CodeBlock
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code={JSON.stringify(input, null, 2)}
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language="json"
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/>
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) : null}
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</div>
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)}
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{output && state === "output-error" && (
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<div className="px-4 py-3 border-t border-border/40 text-sm text-red-600">
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{output}
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</div>
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)}
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</div>
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)
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}
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return (
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<ScrollArea className="h-full w-full scrollbar-thin">
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{messages.length === 0 ? (
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<ExamplePanel setInput={setInput} setFiles={setFiles} />
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) : (
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<div className="py-4 px-4 space-y-4">
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{messages.map((message, messageIndex) => {
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const userMessageText =
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message.role === "user"
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? getMessageTextContent(message)
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: ""
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const isLastAssistantMessage =
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message.role === "assistant" &&
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(messageIndex === messages.length - 1 ||
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messages
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.slice(messageIndex + 1)
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.every((m) => m.role !== "assistant"))
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const isLastUserMessage =
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message.role === "user" &&
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(messageIndex === messages.length - 1 ||
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messages
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.slice(messageIndex + 1)
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.every((m) => m.role !== "user"))
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const isEditing = editingMessageId === message.id
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return (
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<div
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key={message.id}
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className={`flex w-full ${message.role === "user" ? "justify-end" : "justify-start"} animate-message-in`}
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style={{
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animationDelay: `${messageIndex * 50}ms`,
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}}
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>
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{message.role === "user" &&
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userMessageText &&
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!isEditing && (
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<div className="flex items-center gap-1 self-center mr-2">
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{/* Edit button - only on last user message */}
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{onEditMessage &&
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isLastUserMessage && (
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<button
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type="button"
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onClick={() => {
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setEditingMessageId(
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message.id,
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)
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setEditText(
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userMessageText,
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)
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}}
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className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted transition-colors"
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title="Edit message"
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>
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<Pencil className="h-3.5 w-3.5" />
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</button>
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)}
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<button
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type="button"
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onClick={() =>
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copyMessageToClipboard(
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message.id,
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userMessageText,
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)
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}
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className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted transition-colors"
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title={
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copiedMessageId ===
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message.id
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? "Copied!"
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: copyFailedMessageId ===
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message.id
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? "Failed to copy"
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: "Copy message"
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}
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>
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{copiedMessageId ===
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message.id ? (
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<Check className="h-3.5 w-3.5 text-green-500" />
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) : copyFailedMessageId ===
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message.id ? (
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<X className="h-3.5 w-3.5 text-red-500" />
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) : (
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<Copy className="h-3.5 w-3.5" />
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)}
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</button>
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</div>
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)}
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<div className="max-w-[85%] min-w-0">
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{/* Edit mode for user messages */}
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{isEditing && message.role === "user" ? (
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<div className="flex flex-col gap-2">
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<textarea
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ref={editTextareaRef}
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value={editText}
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onChange={(e) =>
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setEditText(e.target.value)
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}
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className="w-full min-w-[300px] px-4 py-3 text-sm rounded-2xl border border-primary bg-background text-foreground resize-none focus:outline-none focus:ring-2 focus:ring-primary"
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rows={Math.min(
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editText.split("\n")
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.length + 1,
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6,
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)}
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onKeyDown={(e) => {
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if (e.key === "Escape") {
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setEditingMessageId(
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null,
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)
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setEditText("")
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} else if (
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e.key === "Enter" &&
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(e.metaKey || e.ctrlKey)
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) {
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e.preventDefault()
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if (
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editText.trim() &&
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onEditMessage
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) {
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onEditMessage(
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messageIndex,
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editText.trim(),
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)
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setEditingMessageId(
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null,
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)
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setEditText("")
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}
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}
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}}
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/>
|
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<div className="flex justify-end gap-2">
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<button
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type="button"
|
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onClick={() => {
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setEditingMessageId(
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null,
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)
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setEditText("")
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}}
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className="px-3 py-1.5 text-xs rounded-lg bg-muted hover:bg-muted/80 transition-colors"
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>
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Cancel
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</button>
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|
<button
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type="button"
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onClick={() => {
|
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if (
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editText.trim() &&
|
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onEditMessage
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) {
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onEditMessage(
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messageIndex,
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editText.trim(),
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)
|
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setEditingMessageId(
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null,
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)
|
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setEditText("")
|
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}
|
|
}}
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disabled={!editText.trim()}
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className="px-3 py-1.5 text-xs rounded-lg bg-primary text-primary-foreground hover:bg-primary/90 disabled:opacity-50 transition-colors"
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>
|
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Save & Submit
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|
</button>
|
|
</div>
|
|
</div>
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) : (
|
|
/* Text content in bubble */
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|
message.parts?.some(
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(part) =>
|
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part.type === "text" ||
|
|
part.type === "file",
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) && (
|
|
<div
|
|
className={`px-4 py-3 text-sm leading-relaxed ${
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|
message.role === "user"
|
|
? "bg-primary text-primary-foreground rounded-2xl rounded-br-md shadow-sm"
|
|
: message.role ===
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"system"
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? "bg-destructive/10 text-destructive border border-destructive/20 rounded-2xl rounded-bl-md"
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: "bg-muted/60 text-foreground rounded-2xl rounded-bl-md"
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} ${message.role === "user" && isLastUserMessage && onEditMessage ? "cursor-pointer hover:opacity-90 transition-opacity" : ""}`}
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role={
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message.role === "user" &&
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isLastUserMessage &&
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onEditMessage
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? "button"
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: undefined
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}
|
|
tabIndex={
|
|
message.role === "user" &&
|
|
isLastUserMessage &&
|
|
onEditMessage
|
|
? 0
|
|
: undefined
|
|
}
|
|
onClick={() => {
|
|
if (
|
|
message.role ===
|
|
"user" &&
|
|
isLastUserMessage &&
|
|
onEditMessage
|
|
) {
|
|
setEditingMessageId(
|
|
message.id,
|
|
)
|
|
setEditText(
|
|
userMessageText,
|
|
)
|
|
}
|
|
}}
|
|
onKeyDown={(e) => {
|
|
if (
|
|
(e.key === "Enter" ||
|
|
e.key === " ") &&
|
|
message.role ===
|
|
"user" &&
|
|
isLastUserMessage &&
|
|
onEditMessage
|
|
) {
|
|
e.preventDefault()
|
|
setEditingMessageId(
|
|
message.id,
|
|
)
|
|
setEditText(
|
|
userMessageText,
|
|
)
|
|
}
|
|
}}
|
|
title={
|
|
message.role === "user" &&
|
|
isLastUserMessage &&
|
|
onEditMessage
|
|
? "Click to edit"
|
|
: undefined
|
|
}
|
|
>
|
|
{message.parts?.map(
|
|
(part, index) => {
|
|
switch (part.type) {
|
|
case "text":
|
|
return (
|
|
<div
|
|
key={`${message.id}-text-${index}`}
|
|
className={`prose prose-sm max-w-none break-words [&>*:first-child]:mt-0 [&>*:last-child]:mb-0 ${
|
|
message.role ===
|
|
"user"
|
|
? "[&_*]:!text-primary-foreground prose-code:bg-white/20"
|
|
: "dark:prose-invert"
|
|
}`}
|
|
>
|
|
<ReactMarkdown>
|
|
{
|
|
part.text
|
|
}
|
|
</ReactMarkdown>
|
|
</div>
|
|
)
|
|
case "file":
|
|
return (
|
|
<div
|
|
key={`${message.id}-file-${part.url}`}
|
|
className="mt-2"
|
|
>
|
|
<Image
|
|
src={
|
|
part.url
|
|
}
|
|
width={
|
|
200
|
|
}
|
|
height={
|
|
200
|
|
}
|
|
alt={`Uploaded diagram or image for AI analysis`}
|
|
className="rounded-lg border border-white/20"
|
|
style={{
|
|
objectFit:
|
|
"contain",
|
|
}}
|
|
/>
|
|
</div>
|
|
)
|
|
default:
|
|
return null
|
|
}
|
|
},
|
|
)}
|
|
</div>
|
|
)
|
|
)}
|
|
{/* Tool calls outside bubble */}
|
|
{message.parts?.map((part) => {
|
|
if (part.type?.startsWith("tool-")) {
|
|
return renderToolPart(
|
|
part as ToolPartLike,
|
|
)
|
|
}
|
|
return null
|
|
})}
|
|
{/* Action buttons for assistant messages */}
|
|
{message.role === "assistant" && (
|
|
<div className="flex items-center gap-1 mt-2">
|
|
{/* Copy button */}
|
|
<button
|
|
type="button"
|
|
onClick={() =>
|
|
copyMessageToClipboard(
|
|
message.id,
|
|
getMessageTextContent(
|
|
message,
|
|
),
|
|
)
|
|
}
|
|
className={`p-1.5 rounded-lg transition-colors ${
|
|
copiedMessageId ===
|
|
message.id
|
|
? "text-green-600 bg-green-100"
|
|
: "text-muted-foreground/60 hover:text-foreground hover:bg-muted"
|
|
}`}
|
|
title={
|
|
copiedMessageId ===
|
|
message.id
|
|
? "Copied!"
|
|
: "Copy response"
|
|
}
|
|
>
|
|
{copiedMessageId ===
|
|
message.id ? (
|
|
<Check className="h-3.5 w-3.5" />
|
|
) : (
|
|
<Copy className="h-3.5 w-3.5" />
|
|
)}
|
|
</button>
|
|
{/* Regenerate button - only on last assistant message */}
|
|
{onRegenerate &&
|
|
isLastAssistantMessage && (
|
|
<button
|
|
type="button"
|
|
onClick={() =>
|
|
onRegenerate(
|
|
messageIndex,
|
|
)
|
|
}
|
|
className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-foreground hover:bg-muted transition-colors"
|
|
title="Regenerate response"
|
|
>
|
|
<RotateCcw className="h-3.5 w-3.5" />
|
|
</button>
|
|
)}
|
|
{/* Divider */}
|
|
<div className="w-px h-4 bg-border mx-1" />
|
|
{/* Thumbs up */}
|
|
<button
|
|
type="button"
|
|
onClick={() =>
|
|
submitFeedback(
|
|
message.id,
|
|
"good",
|
|
)
|
|
}
|
|
className={`p-1.5 rounded-lg transition-colors ${
|
|
feedback[message.id] ===
|
|
"good"
|
|
? "text-green-600 bg-green-100"
|
|
: "text-muted-foreground/60 hover:text-green-600 hover:bg-green-50"
|
|
}`}
|
|
title="Good response"
|
|
>
|
|
<ThumbsUp className="h-3.5 w-3.5" />
|
|
</button>
|
|
{/* Thumbs down */}
|
|
<button
|
|
type="button"
|
|
onClick={() =>
|
|
submitFeedback(
|
|
message.id,
|
|
"bad",
|
|
)
|
|
}
|
|
className={`p-1.5 rounded-lg transition-colors ${
|
|
feedback[message.id] ===
|
|
"bad"
|
|
? "text-red-600 bg-red-100"
|
|
: "text-muted-foreground/60 hover:text-red-600 hover:bg-red-50"
|
|
}`}
|
|
title="Bad response"
|
|
>
|
|
<ThumbsDown className="h-3.5 w-3.5" />
|
|
</button>
|
|
</div>
|
|
)}
|
|
</div>
|
|
</div>
|
|
)
|
|
})}
|
|
</div>
|
|
)}
|
|
<div ref={messagesEndRef} />
|
|
</ScrollArea>
|
|
)
|
|
}
|