add command history

client/src/App.tsx

@@ -19,6 +19,7 @@ import ResourcesTab, { Resource } from "./components/ResourcesTab";
 import NotificationsTab from "./components/NotificationsTab";
 import PromptsTab, { Prompt } from "./components/PromptsTab";
 import ToolsTab, { Tool as ToolType } from "./components/ToolsTab";
+import CommandHistory from "./components/CommandHistory";
 
 const App = () => {
   const [socket, setSocket] = useState<WebSocket | null>(null);
@@ -39,6 +40,9 @@ const App = () => {
     "/Users/ashwin/code/example-servers/build/everything/index.js",
   );
   const [mcpConnected, setMcpConnected] = useState<boolean>(false);
+  const [commandHistory, setCommandHistory] = useState<
+    Array<{ command: string; response: string | null }>
+  >([]);
 
   useEffect(() => {
     const ws = new WebSocket("ws://localhost:3000");
@@ -55,25 +59,33 @@ const App = () => {
       if (message.type === "resources") {
         setResources(message.data.resources);
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "resource") {
         setResourceContent(JSON.stringify(message.data, null, 2));
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "prompts") {
         setPrompts(message.data.prompts);
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "prompt") {
         setPromptContent(JSON.stringify(message.data, null, 2));
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "tools") {
         setTools(message.data.tools);
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "toolResult") {
         setToolResult(JSON.stringify(message.data, null, 2));
         setError(null);
+        updateCommandHistory(message);
       } else if (message.type === "error") {
         setError(message.message);
+        updateCommandHistory(message);
       } else if (message.type === "connected") {
         setMcpConnected(true);
+        updateCommandHistory(message);
       }
     };
 
@@ -89,10 +101,29 @@ const App = () => {
     return () => ws.close();
   }, []);
 
+  const updateCommandHistory = (response: unknown) => {
+    setCommandHistory((prev) => {
+      const lastCommand = prev[prev.length - 1];
+      if (lastCommand && lastCommand.response === null) {
+        const updatedHistory = [...prev];
+        updatedHistory[updatedHistory.length - 1] = {
+          ...lastCommand,
+          response: JSON.stringify(response),
+        };
+        return updatedHistory;
+      }
+      return prev;
+    });
+  };
+
   const sendWebSocketMessage = (message: object) => {
     if (socket) {
       console.log("Sending WebSocket message:", message);
       socket.send(JSON.stringify(message));
+      setCommandHistory((prev) => [
+        ...prev,
+        { command: JSON.stringify(message), response: null },
+      ]);
     }
   };
 
@@ -136,97 +167,100 @@ const App = () => {
       <Sidebar connectionStatus={connectionStatus} />
       <div className="flex-1 flex flex-col overflow-hidden">
         <h1 className="text-2xl font-bold p-4">MCP Inspector</h1>
-        <div className="flex-1 overflow-auto">
-          <div className="p-4 bg-white shadow-md m-4 rounded-md">
-            <h2 className="text-lg font-semibold mb-2">Connect MCP Server</h2>
-            <div className="flex space-x-2 mb-2">
-              <Input
-                placeholder="Command"
-                value={command}
-                onChange={(e) => setCommand(e.target.value)}
-              />
-              <Input
-                placeholder="Arguments (space-separated)"
-                value={args}
-                onChange={(e) => setArgs(e.target.value)}
-              />
-              <Button onClick={connectMcpServer}>
-                <Play className="w-4 h-4 mr-2" />
-                Connect
-              </Button>
-            </div>
-          </div>
-          {mcpConnected ? (
-            <Tabs defaultValue="resources" className="w-full p-4">
-              <TabsList className="mb-4 p-0">
-                <TabsTrigger value="resources">
-                  <Files className="w-4 h-4 mr-2" />
-                  Resources
-                </TabsTrigger>
-                <TabsTrigger value="prompts">
-                  <MessageSquare className="w-4 h-4 mr-2" />
-                  Prompts
-                </TabsTrigger>
-                <TabsTrigger value="requests" disabled>
-                  <Send className="w-4 h-4 mr-2" />
-                  Requests
-                </TabsTrigger>
-                <TabsTrigger value="notifications" disabled>
-                  <Bell className="w-4 h-4 mr-2" />
-                  Notifications
-                </TabsTrigger>
-                <TabsTrigger value="tools" disabled>
-                  <Hammer className="w-4 h-4 mr-2" />
-                  Tools
-                </TabsTrigger>
-                <TabsTrigger value="console" disabled>
-                  <Terminal className="w-4 h-4 mr-2" />
-                  Console
-                </TabsTrigger>
-              </TabsList>
-
-              <div className="w-full">
-                <ResourcesTab
-                  resources={resources}
-                  listResources={listResources}
-                  readResource={readResource}
-                  selectedResource={selectedResource}
-                  setSelectedResource={setSelectedResource}
-                  resourceContent={resourceContent}
-                  error={error}
+        <div className="flex-1 overflow-auto flex">
+          <div className="flex-1">
+            <div className="p-4 bg-white shadow-md m-4 rounded-md">
+              <h2 className="text-lg font-semibold mb-2">Connect MCP Server</h2>
+              <div className="flex space-x-2 mb-2">
+                <Input
+                  placeholder="Command"
+                  value={command}
+                  onChange={(e) => setCommand(e.target.value)}
                 />
-                <NotificationsTab />
-                <PromptsTab
-                  prompts={prompts}
-                  listPrompts={listPrompts}
-                  getPrompt={getPrompt}
-                  selectedPrompt={selectedPrompt}
-                  setSelectedPrompt={setSelectedPrompt}
-                  promptContent={promptContent}
-                  error={error}
+                <Input
+                  placeholder="Arguments (space-separated)"
+                  value={args}
+                  onChange={(e) => setArgs(e.target.value)}
                 />
-                <RequestsTab />
-                <ToolsTab
-                  tools={tools}
-                  listTools={listTools}
-                  callTool={callTool}
-                  selectedTool={selectedTool}
-                  setSelectedTool={setSelectedTool}
-                  toolResult={toolResult}
-                  error={error}
-                />
-                <ConsoleTab />
+                <Button onClick={connectMcpServer}>
+                  <Play className="w-4 h-4 mr-2" />
+                  Connect
+                </Button>
               </div>
-            </Tabs>
-          ) : (
-            <div className="flex items-center justify-center h-full">
-              <p className="text-lg text-gray-500">
-                Connect to an MCP server to start inspecting
-              </p>
             </div>
-          )}
+            {mcpConnected ? (
+              <Tabs defaultValue="resources" className="w-full p-4">
+                <TabsList className="mb-4 p-0">
+                  <TabsTrigger value="resources">
+                    <Files className="w-4 h-4 mr-2" />
+                    Resources
+                  </TabsTrigger>
+                  <TabsTrigger value="prompts">
+                    <MessageSquare className="w-4 h-4 mr-2" />
+                    Prompts
+                  </TabsTrigger>
+                  <TabsTrigger value="requests" disabled>
+                    <Send className="w-4 h-4 mr-2" />
+                    Requests
+                  </TabsTrigger>
+                  <TabsTrigger value="notifications" disabled>
+                    <Bell className="w-4 h-4 mr-2" />
+                    Notifications
+                  </TabsTrigger>
+                  <TabsTrigger value="tools" disabled>
+                    <Hammer className="w-4 h-4 mr-2" />
+                    Tools
+                  </TabsTrigger>
+                  <TabsTrigger value="console" disabled>
+                    <Terminal className="w-4 h-4 mr-2" />
+                    Console
+                  </TabsTrigger>
+                </TabsList>
+
+                <div className="w-full">
+                  <ResourcesTab
+                    resources={resources}
+                    listResources={listResources}
+                    readResource={readResource}
+                    selectedResource={selectedResource}
+                    setSelectedResource={setSelectedResource}
+                    resourceContent={resourceContent}
+                    error={error}
+                  />
+                  <NotificationsTab />
+                  <PromptsTab
+                    prompts={prompts}
+                    listPrompts={listPrompts}
+                    getPrompt={getPrompt}
+                    selectedPrompt={selectedPrompt}
+                    setSelectedPrompt={setSelectedPrompt}
+                    promptContent={promptContent}
+                    error={error}
+                  />
+                  <RequestsTab />
+                  <ToolsTab
+                    tools={tools}
+                    listTools={listTools}
+                    callTool={callTool}
+                    selectedTool={selectedTool}
+                    setSelectedTool={setSelectedTool}
+                    toolResult={toolResult}
+                    error={error}
+                  />
+                  <ConsoleTab />
+                </div>
+              </Tabs>
+            ) : (
+              <div className="flex items-center justify-center h-full">
+                <p className="text-lg text-gray-500">
+                  Connect to an MCP server to start inspecting
+                </p>
+              </div>
+            )}
+          </div>
         </div>
       </div>
+      <CommandHistory commandHistory={commandHistory} />
     </div>
   );
 };