Add support chat (#1066)

* Add support chat

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Refactor the chat logic

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add HMAC signing

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Update the button styles

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Update the button styles

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Refactor the chat logic

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Fix the chat not loading

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Fix the chat not loading

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

---------

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

front/src/modules/client-config/components/ClientConfigProvider.tsx

@@ -1,9 +1,10 @@
 import { useEffect, useState } from 'react';
-import { useRecoilState } from 'recoil';
+import { useRecoilState, useSetRecoilState } from 'recoil';
 
 import { authProvidersState } from '@/client-config/states/authProvidersState';
 import { isDebugModeState } from '@/client-config/states/isDebugModeState';
 import { isSignInPrefilledState } from '@/client-config/states/isSignInPrefilledState';
+import { supportChatState } from '@/client-config/states/supportChatState';
 import { telemetryState } from '@/client-config/states/telemetryState';
 import { useGetClientConfigQuery } from '~/generated/graphql';
 
@@ -15,6 +16,7 @@ export const ClientConfigProvider: React.FC<React.PropsWithChildren> = ({
   const [, setSignInPrefilled] = useRecoilState(isSignInPrefilledState);
   const [, setTelemetry] = useRecoilState(telemetryState);
   const [isLoading, setIsLoading] = useState(true);
+  const setSupportChat = useSetRecoilState(supportChatState);
 
   const { data, loading } = useGetClientConfigQuery();
 
@@ -31,6 +33,7 @@ export const ClientConfigProvider: React.FC<React.PropsWithChildren> = ({
       setDebugMode(data?.clientConfig.debugMode);
       setSignInPrefilled(data?.clientConfig.signInPrefilled);
       setTelemetry(data?.clientConfig.telemetry);
+      setSupportChat(data?.clientConfig.supportChat);
     }
   }, [
     data,
@@ -40,6 +43,7 @@ export const ClientConfigProvider: React.FC<React.PropsWithChildren> = ({
     setTelemetry,
     setIsLoading,
     loading,
+    setSupportChat,
   ]);
 
   return isLoading ? <></> : <>{children}</>;

front/src/modules/client-config/queries/index.tsx

@@ -13,6 +13,10 @@ export const GET_CLIENT_CONFIG = gql`
         enabled
         anonymizationEnabled
       }
+      supportChat {
+        supportDriver
+        supportFrontendKey
+      }
     }
   }
 `;

front/src/modules/client-config/states/supportChatState.ts

@@ -0,0 +1,11 @@
+import { atom } from 'recoil';
+
+import { SupportChat } from '~/generated/graphql';
+
+export const supportChatState = atom<SupportChat>({
+  key: 'supportChatState',
+  default: {
+    supportDriver: 'front',
+    supportFrontendKey: null,
+  },
+});

front/src/modules/types/custom.d.ts

@@ -0,0 +1,3 @@
+declare interface Window {
+  FrontChat?: (method: string, ...args: any[]) => void;
+}

front/src/modules/ui/navbar/components/MainNavbar.tsx

@@ -2,20 +2,29 @@ import styled from '@emotion/styled';
 
 import NavItemsContainer from './NavItemsContainer';
 import NavWorkspaceButton from './NavWorkspaceButton';
+import SupportChat from './SupportChat';
 
 type OwnProps = {
   children: React.ReactNode;
 };
 
 const StyledContainer = styled.div`
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  justify-content: space-between;
+  margin-bottom: ${({ theme }) => theme.spacing(2.5)};
   width: 100%;
 `;
 
 export default function MainNavbar({ children }: OwnProps) {
   return (
     <StyledContainer>
-      <NavWorkspaceButton />
-      <NavItemsContainer>{children}</NavItemsContainer>
+      <div>
+        <NavWorkspaceButton />
+        <NavItemsContainer>{children}</NavItemsContainer>
+      </div>
+      <SupportChat />
     </StyledContainer>
   );
 }

front/src/modules/ui/navbar/components/SupportChat.tsx

@@ -0,0 +1,115 @@
+import { useEffect, useState } from 'react';
+import styled from '@emotion/styled';
+import { useRecoilValue } from 'recoil';
+
+import { currentUserState } from '@/auth/states/currentUserState';
+import { supportChatState } from '@/client-config/states/supportChatState';
+import {
+  Button,
+  ButtonSize,
+  ButtonVariant,
+} from '@/ui/button/components/Button';
+
+const StyledButtonContainer = styled.div`
+  display: flex;
+`;
+
+const StyledQuestionMark = styled.div`
+  align-items: center;
+  border-radius: 50%;
+  border-style: solid;
+  border-width: ${({ theme }) => theme.spacing(0.25)};
+  display: flex;
+  height: ${({ theme }) => theme.spacing(3.5)};
+  justify-content: center;
+  margin-right: ${({ theme }) => theme.spacing(1)};
+  width: ${({ theme }) => theme.spacing(3.5)};
+`;
+
+// insert a script tag into the DOM right before the closing body tag
+function insertScript({
+  src,
+  innerHTML,
+  onLoad,
+}: {
+  src?: string;
+  innerHTML?: string;
+  onLoad?: (...args: any[]) => void;
+}) {
+  const script = document.createElement('script');
+  if (src) script.src = src;
+  if (innerHTML) script.innerHTML = innerHTML;
+  if (onLoad) script.onload = onLoad;
+  document.body.appendChild(script);
+}
+
+function configureFront(chatId: string) {
+  const url = 'https://chat-assets.frontapp.com/v1/chat.bundle.js';
+  // check if Front Chat script is already loaded
+  const script = document.querySelector(`script[src="${url}"]`);
+
+  if (!script) {
+    // insert script and initialize Front Chat when it loads
+    insertScript({
+      src: url,
+      onLoad: () => {
+        window.FrontChat?.('init', {
+          chatId,
+          useDefaultLauncher: false,
+        });
+      },
+    });
+  }
+}
+
+export default function SupportChat() {
+  const user = useRecoilValue(currentUserState);
+  const supportChatConfig = useRecoilValue(supportChatState);
+  const [isFrontChatLoaded, setIsFrontChatLoaded] = useState(false);
+  const [isChatShowing, setIsChatShowing] = useState(false);
+
+  useEffect(() => {
+    if (
+      supportChatConfig?.supportDriver === 'front' &&
+      supportChatConfig.supportFrontendKey &&
+      !isFrontChatLoaded
+    ) {
+      configureFront(supportChatConfig.supportFrontendKey);
+      setIsFrontChatLoaded(true);
+    }
+    if (user?.email && isFrontChatLoaded) {
+      window.FrontChat?.('identity', {
+        email: user.email,
+        name: user.displayName,
+        userHash: user?.supportHMACKey,
+      });
+    }
+  }, [
+    isFrontChatLoaded,
+    supportChatConfig?.supportDriver,
+    supportChatConfig.supportFrontendKey,
+    user?.displayName,
+    user?.email,
+    user?.supportHMACKey,
+  ]);
+
+  function handleSupportClick() {
+    if (supportChatConfig?.supportDriver === 'front') {
+      const action = isChatShowing ? 'hide' : 'show';
+      setIsChatShowing(!isChatShowing);
+      window.FrontChat?.(action);
+    }
+  }
+
+  return isFrontChatLoaded ? (
+    <StyledButtonContainer>
+      <Button
+        variant={ButtonVariant.Tertiary}
+        size={ButtonSize.Small}
+        title="Support"
+        icon={<StyledQuestionMark>?</StyledQuestionMark>}
+        onClick={handleSupportClick}
+      />
+    </StyledButtonContainer>
+  ) : null;
+}

front/src/modules/users/queries/index.ts

@@ -27,6 +27,7 @@ export const GET_CURRENT_USER = gql`
         locale
         colorScheme
       }
+      supportHMACKey
     }
   }
 `;