Files
next-ai-draw-io/components/chat-message-display.tsx
Dayuan Jiang 96a1111654 fix: ensure markdown text in user messages is visible (#108)
The prose plugin was overriding text colors for markdown elements
(bold, headings, etc.) in user message bubbles, causing text to
blend with the dark primary background.

Added conditional styling that forces all child elements in user
messages to use text-primary-foreground color with !important to
override prose defaults.
2025-12-05 23:16:59 +09:00

513 lines
28 KiB
TypeScript

"use client";
import { useRef, useEffect, useState, useCallback } from "react";
import Image from "next/image";
import ReactMarkdown from "react-markdown";
import { ScrollArea } from "@/components/ui/scroll-area";
import ExamplePanel from "./chat-example-panel";
import { UIMessage } from "ai";
import { convertToLegalXml, replaceNodes, validateMxCellStructure } from "@/lib/utils";
import { Copy, Check, X, ChevronDown, ChevronUp, Cpu, Minus, Plus, ThumbsUp, ThumbsDown, RotateCcw, Pencil } from "lucide-react";
import { CodeBlock } from "./code-block";
interface EditPair {
search: string;
replace: string;
}
function EditDiffDisplay({ edits }: { edits: EditPair[] }) {
return (
<div className="space-y-3">
{edits.map((edit, index) => (
<div key={index} className="rounded-lg border border-border/50 overflow-hidden bg-background/50">
<div className="px-3 py-1.5 bg-muted/40 border-b border-border/30 flex items-center gap-2">
<span className="text-xs font-medium text-muted-foreground">
Change {index + 1}
</span>
</div>
<div className="divide-y divide-border/30">
{/* Search (old) */}
<div className="px-3 py-2">
<div className="flex items-center gap-1.5 mb-1.5">
<Minus className="w-3 h-3 text-red-500" />
<span className="text-[10px] font-medium text-red-600 uppercase tracking-wide">Remove</span>
</div>
<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">
{edit.search}
</pre>
</div>
{/* Replace (new) */}
<div className="px-3 py-2">
<div className="flex items-center gap-1.5 mb-1.5">
<Plus className="w-3 h-3 text-green-500" />
<span className="text-[10px] font-medium text-green-600 uppercase tracking-wide">Add</span>
</div>
<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">
{edit.replace}
</pre>
</div>
</div>
</div>
))}
</div>
);
}
import { useDiagram } from "@/contexts/diagram-context";
const getMessageTextContent = (message: UIMessage): string => {
if (!message.parts) return "";
return message.parts
.filter((part: any) => part.type === "text")
.map((part: any) => part.text)
.join("\n");
};
interface ChatMessageDisplayProps {
messages: UIMessage[];
setInput: (input: string) => void;
setFiles: (files: File[]) => void;
sessionId?: string;
onRegenerate?: (messageIndex: number) => void;
onEditMessage?: (messageIndex: number, newText: string) => void;
}
export function ChatMessageDisplay({
messages,
setInput,
setFiles,
sessionId,
onRegenerate,
onEditMessage,
}: ChatMessageDisplayProps) {
const { chartXML, loadDiagram: onDisplayChart } = useDiagram();
const messagesEndRef = useRef<HTMLDivElement>(null);
const previousXML = useRef<string>("");
const processedToolCalls = useRef<Set<string>>(new Set());
const [expandedTools, setExpandedTools] = useState<Record<string, boolean>>(
{}
);
const [copiedMessageId, setCopiedMessageId] = useState<string | null>(null);
const [copyFailedMessageId, setCopyFailedMessageId] = useState<string | null>(null);
const [feedback, setFeedback] = useState<Record<string, "good" | "bad">>({});
const [editingMessageId, setEditingMessageId] = useState<string | null>(null);
const [editText, setEditText] = useState<string>("");
const copyMessageToClipboard = async (messageId: string, text: string) => {
try {
await navigator.clipboard.writeText(text);
setCopiedMessageId(messageId);
setTimeout(() => setCopiedMessageId(null), 2000);
} catch (err) {
console.error("Failed to copy message:", err);
setCopyFailedMessageId(messageId);
setTimeout(() => setCopyFailedMessageId(null), 2000);
}
};
const submitFeedback = async (messageId: string, value: "good" | "bad") => {
// Toggle off if already selected
if (feedback[messageId] === value) {
setFeedback((prev) => {
const next = { ...prev };
delete next[messageId];
return next;
});
return;
}
setFeedback((prev) => ({ ...prev, [messageId]: value }));
try {
await fetch("/api/log-feedback", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
messageId,
feedback: value,
sessionId,
}),
});
} catch (error) {
console.warn("Failed to log feedback:", error);
}
};
const handleDisplayChart = useCallback(
(xml: string) => {
const currentXml = xml || "";
const convertedXml = convertToLegalXml(currentXml);
if (convertedXml !== previousXML.current) {
const replacedXML = replaceNodes(chartXML, convertedXml);
const validationError = validateMxCellStructure(replacedXML);
if (!validationError) {
previousXML.current = convertedXml;
onDisplayChart(replacedXML);
} else {
console.log("[ChatMessageDisplay] XML validation failed:", validationError);
}
}
},
[chartXML, onDisplayChart]
);
useEffect(() => {
if (messagesEndRef.current) {
messagesEndRef.current.scrollIntoView({ behavior: "smooth" });
}
}, [messages]);
useEffect(() => {
messages.forEach((message) => {
if (message.parts) {
message.parts.forEach((part: any) => {
if (part.type?.startsWith("tool-")) {
const { toolCallId, state } = part;
if (state === "output-available") {
setExpandedTools((prev) => ({
...prev,
[toolCallId]: false,
}));
}
if (
part.type === "tool-display_diagram" &&
part.input?.xml
) {
if (
state === "input-streaming" ||
state === "input-available"
) {
handleDisplayChart(part.input.xml);
} else if (
state === "output-available" &&
!processedToolCalls.current.has(toolCallId)
) {
handleDisplayChart(part.input.xml);
processedToolCalls.current.add(toolCallId);
}
}
}
});
}
});
}, [messages, handleDisplayChart]);
const renderToolPart = (part: any) => {
const callId = part.toolCallId;
const { state, input, output } = part;
const isExpanded = expandedTools[callId] ?? true;
const toolName = part.type?.replace("tool-", "");
const toggleExpanded = () => {
setExpandedTools((prev) => ({
...prev,
[callId]: !isExpanded,
}));
};
const getToolDisplayName = (name: string) => {
switch (name) {
case "display_diagram":
return "Generate Diagram";
case "edit_diagram":
return "Edit Diagram";
default:
return name;
}
};
return (
<div
key={callId}
className="my-3 rounded-xl border border-border/60 bg-muted/30 overflow-hidden"
>
<div className="flex items-center justify-between px-4 py-3 bg-muted/50">
<div className="flex items-center gap-2">
<div className="w-6 h-6 rounded-md bg-primary/10 flex items-center justify-center">
<Cpu className="w-3.5 h-3.5 text-primary" />
</div>
<span className="text-sm font-medium text-foreground/80">
{getToolDisplayName(toolName)}
</span>
</div>
<div className="flex items-center gap-2">
{state === "input-streaming" && (
<div className="h-4 w-4 border-2 border-primary border-t-transparent rounded-full animate-spin" />
)}
{state === "output-available" && (
<span className="text-xs font-medium text-green-600 bg-green-50 px-2 py-0.5 rounded-full">
Complete
</span>
)}
{state === "output-error" && (
<span className="text-xs font-medium text-red-600 bg-red-50 px-2 py-0.5 rounded-full">
Error
</span>
)}
{input && Object.keys(input).length > 0 && (
<button
onClick={toggleExpanded}
className="p-1 rounded hover:bg-muted transition-colors"
>
{isExpanded ? (
<ChevronUp className="w-4 h-4 text-muted-foreground" />
) : (
<ChevronDown className="w-4 h-4 text-muted-foreground" />
)}
</button>
)}
</div>
</div>
{input && isExpanded && (
<div className="px-4 py-3 border-t border-border/40 bg-muted/20">
{typeof input === "object" && input.xml ? (
<CodeBlock code={input.xml} language="xml" />
) : typeof input === "object" && input.edits && Array.isArray(input.edits) ? (
<EditDiffDisplay edits={input.edits} />
) : typeof input === "object" && Object.keys(input).length > 0 ? (
<CodeBlock code={JSON.stringify(input, null, 2)} language="json" />
) : null}
</div>
)}
{output && state === "output-error" && (
<div className="px-4 py-3 border-t border-border/40 text-sm text-red-600">
{output}
</div>
)}
</div>
);
};
return (
<ScrollArea className="h-full w-full scrollbar-thin">
{messages.length === 0 ? (
<ExamplePanel setInput={setInput} setFiles={setFiles} />
) : (
<div className="py-4 px-4 space-y-4">
{messages.map((message, messageIndex) => {
const userMessageText = message.role === "user" ? getMessageTextContent(message) : "";
const isLastAssistantMessage = message.role === "assistant" && (
messageIndex === messages.length - 1 ||
messages.slice(messageIndex + 1).every(m => m.role !== "assistant")
);
const isLastUserMessage = message.role === "user" && (
messageIndex === messages.length - 1 ||
messages.slice(messageIndex + 1).every(m => m.role !== "user")
);
const isEditing = editingMessageId === message.id;
return (
<div
key={message.id}
className={`flex w-full ${message.role === "user" ? "justify-end" : "justify-start"} animate-message-in`}
style={{ animationDelay: `${messageIndex * 50}ms` }}
>
{message.role === "user" && userMessageText && !isEditing && (
<div className="flex items-center gap-1 self-center mr-2">
{/* Edit button - only on last user message */}
{onEditMessage && isLastUserMessage && (
<button
onClick={() => {
setEditingMessageId(message.id);
setEditText(userMessageText);
}}
className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted transition-colors"
title="Edit message"
>
<Pencil className="h-3.5 w-3.5" />
</button>
)}
<button
onClick={() => copyMessageToClipboard(message.id, userMessageText)}
className="p-1.5 rounded-lg text-muted-foreground/60 hover:text-muted-foreground hover:bg-muted transition-colors"
title={copiedMessageId === message.id ? "Copied!" : copyFailedMessageId === message.id ? "Failed to copy" : "Copy message"}
>
{copiedMessageId === message.id ? (
<Check className="h-3.5 w-3.5 text-green-500" />
) : copyFailedMessageId === message.id ? (
<X className="h-3.5 w-3.5 text-red-500" />
) : (
<Copy className="h-3.5 w-3.5" />
)}
</button>
</div>
)}
<div className="max-w-[85%] min-w-0">
{/* Edit mode for user messages */}
{isEditing && message.role === "user" ? (
<div className="flex flex-col gap-2">
<textarea
value={editText}
onChange={(e) => setEditText(e.target.value)}
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"
rows={Math.min(editText.split('\n').length + 1, 6)}
autoFocus
onKeyDown={(e) => {
if (e.key === "Escape") {
setEditingMessageId(null);
setEditText("");
} else if (e.key === "Enter" && (e.metaKey || e.ctrlKey)) {
e.preventDefault();
if (editText.trim() && onEditMessage) {
onEditMessage(messageIndex, editText.trim());
setEditingMessageId(null);
setEditText("");
}
}
}}
/>
<div className="flex justify-end gap-2">
<button
onClick={() => {
setEditingMessageId(null);
setEditText("");
}}
className="px-3 py-1.5 text-xs rounded-lg bg-muted hover:bg-muted/80 transition-colors"
>
Cancel
</button>
<button
onClick={() => {
if (editText.trim() && onEditMessage) {
onEditMessage(messageIndex, editText.trim());
setEditingMessageId(null);
setEditText("");
}
}}
disabled={!editText.trim()}
className="px-3 py-1.5 text-xs rounded-lg bg-primary text-primary-foreground hover:bg-primary/90 disabled:opacity-50 transition-colors"
>
Save & Submit
</button>
</div>
</div>
) : (
/* Text content in bubble */
message.parts?.some((part: any) => part.type === "text" || part.type === "file") && (
<div
className={`px-4 py-3 text-sm leading-relaxed ${
message.role === "user"
? "bg-primary text-primary-foreground rounded-2xl rounded-br-md shadow-sm"
: message.role === "system"
? "bg-destructive/10 text-destructive border border-destructive/20 rounded-2xl rounded-bl-md"
: "bg-muted/60 text-foreground rounded-2xl rounded-bl-md"
} ${message.role === "user" && isLastUserMessage && onEditMessage ? "cursor-pointer hover:opacity-90 transition-opacity" : ""}`}
onClick={() => {
if (message.role === "user" && isLastUserMessage && onEditMessage) {
setEditingMessageId(message.id);
setEditText(userMessageText);
}
}}
title={message.role === "user" && isLastUserMessage && onEditMessage ? "Click to edit" : undefined}
>
{message.parts?.map((part: any, index: number) => {
switch (part.type) {
case "text":
return (
<div key={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={index} 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: any) => {
if (part.type?.startsWith("tool-")) {
return renderToolPart(part);
}
return null;
})}
{/* Action buttons for assistant messages */}
{message.role === "assistant" && (
<div className="flex items-center gap-1 mt-2">
{/* Copy button */}
<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
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
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
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>
);
}