MGMT-20953: Add AI ChatBot

.containerignore

@@ -0,0 +1,2 @@
+node_modules
+build

docs/DEVELOPMENT.md

@@ -78,6 +78,7 @@ apply for `libs/locales` as well.
    yalc link @openshift-assisted/ui-lib
    yalc link @openshift-assisted/locales
    yalc link @openshift-assisted/types
+   yalc link @openshift-assisted/chatbot
    ```
 
    **Note**: `yalc link` needs to be executed following the `npm install` command.  

libs/chatbot/.eslintrc.cjs

@@ -0,0 +1,27 @@
+/** @type {import('eslint').ESLint.ConfigData} */
+module.exports = {
+  overrides: [
+    {
+      files: ['./vitest.config.ts'],
+      extends: ['@openshift-assisted/eslint-config'],
+      env: {
+        node: true,
+      },
+      parserOptions: {
+        tsconfigRootDir: __dirname,
+        project: 'tsconfig.eslint.json',
+      },
+      rules: {
+        'no-console': 'off',
+      },
+    },
+    {
+      files: ['./lib/**/*.{ts,tsx}'],
+      extends: ['@openshift-assisted/eslint-config'],
+      parserOptions: {
+        tsconfigRootDir: __dirname,
+        project: 'tsconfig.eslint.json',
+      },
+    },
+  ],
+};

libs/chatbot/lib/components/ChatBot/ChatBot.tsx

@@ -0,0 +1,35 @@
+import * as React from 'react';
+import { ChatbotToggle } from '@patternfly-6/chatbot';
+
+import ChatBotWindow, { ChatBotWindowProps } from './ChatBotWindow';
+
+import './Chatbot.css';
+
+type ChatBotProps = Pick<ChatBotWindowProps, 'onApiCall' | 'username'>;
+
+const ChatBot = ({ onApiCall, username }: ChatBotProps) => {
+  const [conversationId, setConversationId] = React.useState<string>();
+  const [messages, setMessages] = React.useState<ChatBotWindowProps['messages']>([]);
+  const [chatbotVisible, setChatbotVisible] = React.useState<boolean>(false);
+  return (
+    <div className="ai-chatbot">
+      <ChatbotToggle
+        tooltipLabel="Chatbot"
+        isChatbotVisible={chatbotVisible}
+        onToggleChatbot={() => setChatbotVisible(!chatbotVisible)}
+      />
+      {chatbotVisible && (
+        <ChatBotWindow
+          setMessages={setMessages}
+          messages={messages}
+          conversationId={conversationId}
+          setConversationId={setConversationId}
+          onApiCall={onApiCall}
+          username={username}
+        />
+      )}
+    </div>
+  );
+};
+
+export default ChatBot;

libs/chatbot/lib/components/ChatBot/ChatBotWindow.tsx

@@ -0,0 +1,245 @@
+import * as React from 'react';
+import isString from 'lodash-es/isString.js';
+import {
+  Chatbot,
+  ChatbotAlert,
+  ChatbotContent,
+  ChatbotDisplayMode,
+  ChatbotFooter,
+  ChatbotFootnote,
+  ChatbotWelcomePrompt,
+  Message,
+  MessageBar,
+  MessageBox,
+} from '@patternfly-6/chatbot';
+import { Alert, AlertActionCloseButton, Button } from '@patternfly-6/react-core';
+import { ExternalLinkAltIcon } from '@patternfly-6/react-icons/dist/js/icons/external-link-alt-icon';
+
+import AIAvatar from '../../assets/rh-logo.svg';
+import UserAvatar from '../../assets/avatarimg.svg';
+
+type StreamEvent =
+  | { event: 'start'; data: { conversation_id: string } }
+  | { event: 'token'; data: { token: string; role: string } }
+  | { event: 'end' };
+
+const getErrorMessage = (error: unknown) => {
+  if (error instanceof Error) {
+    return error.message;
+  }
+  if (isString(error)) {
+    return error;
+  }
+  return 'Unexpected error';
+};
+
+const CHAT_ALERT_LOCAL_STORAGE_KEY = 'assisted.hide.chat.alert';
+
+type MsgProps = React.ComponentProps<typeof Message>;
+
+export type ChatBotWindowProps = {
+  conversationId: string | undefined;
+  setConversationId: (id: string) => void;
+  setMessages: React.Dispatch<React.SetStateAction<MsgProps[]>>;
+  messages: MsgProps[];
+  onApiCall: typeof fetch;
+  username: string;
+};
+
+const ChatBotWindow = ({
+  conversationId,
+  setConversationId,
+  messages,
+  setMessages,
+  onApiCall,
+  username,
+}: ChatBotWindowProps) => {
+  const [error, setError] = React.useState<string>();
+  const [isLoading, setIsLoading] = React.useState(false);
+  const [isStreaming, setIsStreaming] = React.useState(false);
+  const [announcement, setAnnouncement] = React.useState<string>();
+  const [isAlertVisible, setIsAlertVisible] = React.useState(
+    localStorage.getItem(CHAT_ALERT_LOCAL_STORAGE_KEY) !== 'true',
+  );
+  const scrollToBottomRef = React.useRef<HTMLDivElement>(null);
+
+  const handleSend = async (message: string | number) => {
+    setError(undefined);
+    setIsLoading(true);
+    let reader: ReadableStreamDefaultReader<Uint8Array> | undefined = undefined;
+    try {
+      setMessages((msgs) => [
+        ...msgs,
+        {
+          role: 'user',
+          content: `${message}`,
+          name: username,
+          avatar: UserAvatar,
+          timestamp: new Date().toLocaleString(),
+        },
+      ]);
+      setAnnouncement(`Message from User: ${message}. Message from Bot is loading.`);
+
+      let convId = '';
+
+      const resp = await onApiCall('/v1/streaming_query', {
+        method: 'POST',
+        body: JSON.stringify({
+          query: `${message}`,
+          conversation_id: conversationId,
+        }),
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      });
+
+      reader = resp.body?.getReader();
+      const decoder = new TextDecoder();
+
+      const timestamp = new Date().toLocaleString();
+
+      let completeMsg = '';
+      while (reader) {
+        const { done, value } = await reader.read();
+        if (done) {
+          break;
+        }
+
+        const chunk = decoder.decode(value, { stream: true });
+        const ev = JSON.parse(chunk.slice(5).trim()) as StreamEvent;
+        if (ev.event === 'start') {
+          convId = ev.data.conversation_id;
+        } else if (ev.event === 'token' && ev.data.role === 'inference') {
+          setIsLoading(false);
+          setIsStreaming(true);
+          const token = ev.data.token;
+          completeMsg = `${completeMsg}${token}`;
+          setMessages((msgs) => {
+            const lastMsg = msgs[msgs.length - 1];
+            const msg =
+              lastMsg.timestamp === timestamp && lastMsg.role === 'bot' ? lastMsg : undefined;
+            if (!msg) {
+              return [
+                ...msgs,
+                {
+                  role: 'bot',
+                  content: token,
+                  name: 'AI',
+                  avatar: AIAvatar,
+                  timestamp: timestamp,
+                },
+              ];
+            }
+
+            const allButLast = msgs.slice(0, -1);
+            return [
+              ...allButLast,
+              {
+                ...msg,
+                content: `${msg.content || ''}${token}`,
+              },
+            ];
+          });
+        }
+      }
+
+      setConversationId(convId);
+      setAnnouncement(`Message from Bot: ${completeMsg}`);
+    } catch (e) {
+      if (reader) {
+        try {
+          await reader.cancel('An error occured');
+        } catch (e) {
+          // eslint-disable-next-line
+          console.warn('Failed to cancel reader:', e);
+        }
+      }
+      setError(getErrorMessage(e));
+    } finally {
+      setIsStreaming(false);
+      setIsLoading(false);
+    }
+  };
+
+  React.useEffect(() => {
+    scrollToBottomRef.current?.scrollIntoView({ behavior: 'smooth' });
+  }, [messages]);
+
+  return (
+    <Chatbot displayMode={ChatbotDisplayMode.default}>
+      <ChatbotContent>
+        <MessageBox announcement={announcement} position={'top'}>
+          {isAlertVisible && (
+            <Alert
+              variant="info"
+              isInline
+              title={
+                <>
+                  This feature uses AI technology. Do not include personal or sensitive information
+                  in your input. Interactions may be used to improve Red Hat's products or services.
+                  For more information about Red Hat's privacy practices, please refer to the
+                  <Button
+                    variant="link"
+                    isInline
+                    icon={<ExternalLinkAltIcon />}
+                    component="a"
+                    href="https://www.redhat.com/en/about/privacy-policy"
+                    iconPosition="end"
+                    target="_blank"
+                    rel="noopener noreferrer"
+                  >
+                    Red Hat Privacy Statement
+                  </Button>
+                </>
+              }
+              actionClose={
+                <AlertActionCloseButton
+                  onClose={() => {
+                    localStorage.setItem(CHAT_ALERT_LOCAL_STORAGE_KEY, 'true');
+                    setIsAlertVisible(false);
+                  }}
+                />
+              }
+            />
+          )}
+          {messages.length === 0 && (
+            <ChatbotWelcomePrompt
+              title={`Hi, ${username}!`}
+              description="How can I help you today?"
+            />
+          )}
+          {messages.map((message, index) => (
+            <Message key={conversationId ? `${conversationId}-${index}` : index} {...message} />
+          ))}
+          {isLoading && <Message isLoading role="bot" avatar={AIAvatar} />}
+          {error && (
+            <ChatbotAlert
+              variant="danger"
+              onClose={() => setError(undefined)}
+              title="Failed to send the message"
+            >
+              {error}
+            </ChatbotAlert>
+          )}
+          <div ref={scrollToBottomRef} />
+        </MessageBox>
+      </ChatbotContent>
+      <ChatbotFooter>
+        <MessageBar
+          onSendMessage={(msg) => void handleSend(msg)}
+          isSendButtonDisabled={isLoading || isStreaming}
+          hasAttachButton={false}
+        />
+        <ChatbotFootnote
+          label="Always review AI generated content prior to use"
+          popover={{
+            title: 'Feature preview',
+            description: `This tool is a preview, and while we strive for accuracy, there's always a possibility of errors. We recommend that you review AI generated content prior to use.`,
+          }}
+        />
+      </ChatbotFooter>
+    </Chatbot>
+  );
+};
+
+export default ChatBotWindow;

libs/chatbot/lib/components/ChatBot/Chatbot.css

@@ -0,0 +1,14 @@
+.ai-chatbot {
+  position: fixed;
+  z-index: 29999;
+}
+
+.ai-chatbot .pf-chatbot__button {
+  inset-block-end: 20px;
+  inset-inline-end: 20px;
+}
+
+.ai-chatbot .pf-chatbot {
+  inset-block-end: 80px;
+  inset-inline-end: 20px;
+}

libs/chatbot/lib/index.ts

@@ -0,0 +1,2 @@
+export { default as ChatBot } from './components/ChatBot/ChatBot';
+export type { ChatBotWindowProps } from './components/ChatBot/ChatBotWindow';

libs/chatbot/lib/typings.d.ts

@@ -0,0 +1,4 @@
+declare module '*.svg' {
+  const content: string;
+  export default content;
+}