added export conversation feature.

public/chat/export_conversation_template.md

@@ -0,0 +1,7 @@
+# From: {role} 
+
+{timestamp}
+
+{content}
+
+---

src/App.css

@@ -669,9 +669,9 @@ body {
   color: #e0e0e0;
 }
 
-.export-dropdown .quant-dropdown {
+.chatbox-export-dropdown .quant-dropdown {
-  width: 200px;
+  width: 250px;
-  left: 0;
+  left: -200px;
 }
 
 .key-signature-dropdown .quant-dropdown {
@@ -1039,6 +1039,10 @@ body {
   flex-shrink: 0;
 }
 
+.chatbox.is-hidden {
+  display: none;
+}
+
 /* Instrument Selection Panel */
 .instrument-selection {
   display: flex;
@@ -1197,6 +1201,25 @@ body {
   border-radius: 3px;
 }
 
+/* ChatBox export button wrapper and dropdown positioning */
+.chatbox-export-wrapper {
+  position: relative;
+  display: inline-block;
+}
+
+.chatbox-export-btn {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.chatbox-export-dropdown-anchor {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  z-index: 10000;
+}
+
 .chatbox-header h3 {
   color: #e0e0e0;
   font-size: 12px;

src/components/ChatBox.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useRef, useEffect, memo, useCallback } from 'react';
-import { FaPlus, FaBan } from 'react-icons/fa';
+import { FaPlus, FaBan, FaDownload } from 'react-icons/fa';
 import { UserMessage, AssistantMessage } from './chat';
 import { AgentCore } from '../agent/core/AgentCore';
 import { OpenAIProvider } from '../agent/llm/OpenAIProvider';
@@ -14,6 +14,10 @@ import { processUserMessage } from '../util/messageFilter/UserMessageFilter';
 import { useStreamProcessor } from '../hooks/useStreamProcessor';
 import { createMessage, addWelcomeMessage } from '../utils/chatMessageUtils';
 import { extractActionableTools, executeAllTools } from '../utils/toolExecutionUtils';
+import { formatLocalDateTime } from '../util/timeUtil';
+import { downloadBlob, buildTimestampSuffix } from '../util/miscUtil';
+import { wrapXmlBlocksInContent } from '../util/xmlUtil';
+import KGDropdown from './common/KGDropdown';
 
 import type { ChatMessage } from '../types/projectTypes';
 
@@ -60,6 +64,65 @@ const ChatBox: React.FC<ChatBoxProps> = ({ isVisible }) => {
   // Track if this is the first message (for system prompt logging)
   const [isFirstMessage, setIsFirstMessage] = useState(true);
 
+  // Export dropdown state and options
+  const [showExportDropdown, setShowExportDropdown] = useState(false);
+  const exportOptions = [
+    'Export conversation as JSON',
+    'Export conversation as Markdown'
+  ];
+
+  const handleExportOptionSelect = (option: string) => {
+    if (option === 'Export conversation as JSON') {
+      try {
+        const messages = AgentCore.instance().getAgentState().getMessages();
+        const exportMessages = messages.map((m) => ({
+          id: m.id,
+          role: m.role,
+          content: m.content,
+          timestamp: formatLocalDateTime(new Date(m.timestamp))
+        }));
+        const json = JSON.stringify(exportMessages, null, 2);
+        const filename = `kgstudio-conversation-${buildTimestampSuffix()}.json`;
+        downloadBlob(json, 'application/json', filename);
+      } catch (err) {
+        console.error('Failed to export conversation as JSON:', err);
+      }
+    } else if (option === 'Export conversation as Markdown') {
+      (async () => {
+        try {
+          const messages = AgentCore.instance().getAgentState().getMessages();
+          const templateUrl = `${import.meta.env.BASE_URL}chat/export_conversation_template.md`;
+          const res = await fetch(templateUrl);
+          const template = await res.text();
+
+          const isAutomatedUserMessage = (content: string): boolean => {
+            return /^tool:\s.*\nsuccess:\s*(true|false)/i.test(content);
+          };
+
+          const sections = messages.map((m) => {
+            const isAutomaticUserMessage = isAutomatedUserMessage(m.content);
+            const roleLabel = m.role === 'assistant' ? 'Assistant' : (isAutomaticUserMessage ? 'User (Automatic)' : 'User');
+            const ts = formatLocalDateTime(new Date(m.timestamp));
+            const contentWithXml = isAutomaticUserMessage ? "```\n" + m.content + "\n```" : wrapXmlBlocksInContent(m.content);
+            return template
+              .replace('{role}', roleLabel)
+              .replace('{timestamp}', ts)
+              .replace('{content}', contentWithXml);
+          });
+
+          const markdown = sections.join('\n');
+          const filename = `kgstudio-conversation-${buildTimestampSuffix()}.md`;
+          downloadBlob(markdown, 'text/markdown', filename);
+        } catch (err) {
+          console.error('Failed to export conversation as Markdown:', err);
+        }
+      })();
+    } else {
+      console.log('Chat export selected:', option);
+    }
+    setShowExportDropdown(false);
+  };
+
   // Message update callbacks for stream processor
   const handleMessageUpdate = useCallback((messageId: string, updater: (msg: ChatMessage) => ChatMessage) => {
     setMessages(prev => prev.map(msg => msg.id === messageId ? updater(msg) : msg));
@@ -323,7 +386,7 @@ const ChatBox: React.FC<ChatBoxProps> = ({ isVisible }) => {
   }, [isProcessing, isExecutingTools]);
 
   return (
-    <div className="chatbox" style={{ display: isVisible ? 'flex' : 'none' }}>
+    <div className={`chatbox ${isVisible ? '' : 'is-hidden'}`}>
       <div className="chatbox-header">
         <h3>K.G.Studio Musician Assistant</h3>
         <div className="chatbox-actions">
@@ -337,6 +400,28 @@ const ChatBox: React.FC<ChatBoxProps> = ({ isVisible }) => {
               <FaBan />
             </button>
           )}
+          <div className="chatbox-export-wrapper">
+            <button
+              type="button"
+              title="Export"
+              onClick={() => setShowExportDropdown(!showExportDropdown)}
+              className="chatbox-action-btn chatbox-export-btn"
+            >
+              <FaDownload />
+            </button>
+            <div className="chatbox-export-dropdown-anchor">
+              <KGDropdown
+                options={exportOptions}
+                value={exportOptions[0]}
+                onChange={handleExportOptionSelect}
+                label="Export"
+                hideButton={true}
+                isOpen={showExportDropdown}
+                onToggle={setShowExportDropdown}
+                className="chatbox-export-dropdown"
+              />
+            </div>
+          </div>
           <button
             type="button"
             title="New Chat"

src/util/miscUtil.ts

@@ -66,4 +66,27 @@ export const generateNewRegionName = (trackId: string): string => {
     }
     i++;
   }
-};
+};
+
+/** Create and trigger a download for a text/blob payload */
+export function downloadBlob(content: BlobPart, mimeType: string, filename: string): void {
+  const blob = new Blob([content], { type: mimeType });
+  const url = URL.createObjectURL(blob);
+  const link = document.createElement('a');
+  link.href = url;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(url);
+}
+
+/** Pad number with leading zero to 2 digits */
+export function pad2(n: number): string {
+  return n.toString().padStart(2, '0');
+}
+
+/** Build timestamped filename suffix YYYY-MM-DD-hh-mm-ss */
+export function buildTimestampSuffix(date: Date = new Date()): string {
+  return `${date.getFullYear()}-${pad2(date.getMonth() + 1)}-${pad2(date.getDate())}-${pad2(date.getHours())}-${pad2(date.getMinutes())}-${pad2(date.getSeconds())}`;
+}

src/util/timeUtil.ts

@@ -87,4 +87,22 @@ export function beatsToTimeString(
   const mmm = milliseconds.toString().padStart(3, '0');
   
   return `${BBB}:${B} | ${mm}:${ss}:${mmm}`;
-} 
+} 
+
+/**
+ * Format a Date object into a human-readable local datetime string with timezone.
+ * Example: 2025/08/21, 19:57:11 GMT-7
+ */
+export function formatLocalDateTime(date: Date): string {
+  const options: Intl.DateTimeFormatOptions = {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+    hour12: false,
+    timeZoneName: 'short'
+  };
+  return date.toLocaleString(undefined, options);
+}

src/util/xmlUtil.ts

@@ -49,4 +49,21 @@ export function extractXMLFromString(input: string): string[] {
   }
   
   return matches;
-}
+}
+
+/**
+ * Wrap XML blocks in content with fenced code blocks
+ * @param content - The input string that may contain XML blocks
+ * @returns The input string with XML blocks wrapped in fenced code blocks
+ */
+export const wrapXmlBlocksInContent = (content: string): string => {
+  if (!content) return content;
+  const xmlBlocks = extractXMLFromString(content);
+  if (!xmlBlocks || xmlBlocks.length === 0) return content;
+  let result = content;
+  for (const block of xmlBlocks) {
+    const fenced = '```\n' + block + '\n```';
+    result = result.split(block).join(fenced);
+  }
+  return result;
+};