I am adding a loading animation to the logo.

[ngoiyaeric]

PR Type

Enhancement

---

Description

• Add loading animation with spinning logo

• Create CSS keyframes for spin and fade effects

• Replace ConditionalLottie with LoadingSpinner component

• Integrate loading state with map loading context

---

Diagram Walkthrough

flowchart LR
  A["CSS Animations"] --> B["Loading Spinner Component"]
  B --> C["Header Logo Animation"]
  D["Map Loading Context"] --> B
  D --> C

Loading

File Walkthrough

Relevant files

Enhancement

loading.css Create CSS animations for loading states                                  app/loading.css Define spin keyframe for 360-degree rotation animation Add fadeIn and fadeOut keyframes for opacity transitions Create CSS classes for spinning, fade-in, and fade-out effects +38/-0    layout.tsx Replace ConditionalLottie with LoadingSpinner component    app/layout.tsx Replace ConditionalLottie import with LoadingSpinner Update component usage in layout structure +2/-2      header.tsx Add spinning animation to header logo                                        components/header.tsx Import useMapLoading hook and loading CSS Add conditional spinning class to logo based on map loading state Restructure logo Image component with dynamic className +11/-1    loading-spinner.tsx Implement full-screen loading spinner component                    components/loading-spinner.tsx Create new loading spinner component with fade transitions Implement visibility state management with useEffect Display spinning logo overlay during map loading Handle fade-out animation timing with setTimeout +41/-0

---

Summary by CodeRabbit

• New Features

  • Introduced a fullscreen loading spinner with smooth fade-in and fade-out animations to indicate chat loading status.
  • Added a chat loading context to manage and share loading state across components.

• Enhancements

  • The header logo now spins while chat loading is active, providing a visual loading indicator.
  • Integrated chat loading state management into the chat panel for precise loading feedback.

• Style

  • Implemented new CSS animations for spinning and fading effects used in loading indicators.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[coderabbitai]

Walkthrough

A new chat loading state management system was introduced using React context and hooks. A fullscreen loading spinner with fade animations replaces the previous Lottie animation. The header logo spins dynamically during chat loading. The root layout wraps content with the chat loading provider to share loading state across components. ChatPanel signals loading state during message submission.

Changes

Cohort / File(s)	Change Summary
Chat Loading Context components/chat-loading-context.tsx	Added a React context and provider to manage chat loading state with a hook for accessing and updating the state.
Loading Spinner Component components/loading-spinner.tsx	Added a fullscreen loading spinner component that shows/hides with fade animations based on chat loading state.
Loading Animation Styles app/loading.css	Added CSS keyframes and classes for spinning and fading animations used by the spinner and header logo.
Header Logo Animation components/header.tsx	Updated header logo to spin dynamically when chat is loading using the new loading context and CSS animations.
Layout Integration app/layout.tsx	Replaced previous Lottie animation with the new LoadingSpinner component and wrapped layout in ChatLoadingProvider.
ChatPanel Loading State components/chat-panel.tsx	Integrated chat loading state signaling by setting loading true before and false after message submission. Removed previous MCP usage.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant ChatPanel
    participant ChatLoadingContext
    participant LoadingSpinner
    participant Header

    User->>ChatPanel: Submit message
    ChatPanel->>ChatLoadingContext: setIsChatLoading(true)
    ChatLoadingContext-->>LoadingSpinner: isChatLoading = true
    LoadingSpinner-->>User: Show spinner (fade-in)
    LoadingSpinner-->>Header: Header logo spins
    ChatPanel->>ChatLoadingContext: setIsChatLoading(false) after submission
    ChatLoadingContext-->>LoadingSpinner: isChatLoading = false
    LoadingSpinner-->>User: Fade out spinner, then hide
    LoadingSpinner-->>Header: Header logo stops spinning

Loading

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

A spinner wakes, the chat is bright,
The logo twirls with pure delight.
Context flows, the state is shared,
Messages sent with care prepared.
Fade in, fade out, the dance is done,
A rabbit’s work, both smooth and fun!
🐇🌀✨

Note

⚡️ Unit Test Generation is now available in beta!

Learn more here, or try it out under "Finishing Touches" below.

---

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between d4e02a3 and 279f7c9.

📒 Files selected for processing (5)

• app/layout.tsx (2 hunks)
• components/chat-loading-context.tsx (1 hunks)
• components/chat-panel.tsx (3 hunks)
• components/header.tsx (3 hunks)
• components/loading-spinner.tsx (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (2)

• components/header.tsx
• app/layout.tsx

🧰 Additional context used

🧬 Code Graph Analysis (2)

components/loading-spinner.tsx (1)

components/chat-loading-context.tsx (1)

• useChatLoading (20-26)

components/chat-panel.tsx (2)

components/chat-loading-context.tsx (1)

• useChatLoading (20-26)

MapGPT/components/chat-panel.tsx (2)

• ChatPanel (19-171)
• ChatPanelProps (15-17)

🔇 Additional comments (12)

components/chat-loading-context.tsx (4)

1-7: LGTM! Clean context interface definition.

The interface properly defines the loading state and setter function with appropriate TypeScript typing.

---

9-9: LGTM! Proper context initialization.

The context is correctly initialized with undefined to enforce usage within a provider.

---

11-18: LGTM! Well-implemented provider component.

The provider correctly initializes state to false and provides both the state and setter to children.

---

20-26: LGTM! Proper hook implementation with error boundary.

The custom hook correctly validates context usage and provides helpful error messaging when used outside the provider.

components/chat-panel.tsx (3)

7-7: LGTM! Proper import of the loading context hook.

The import correctly references the new chat loading context hook.

---

25-25: LGTM! Clean extraction of the loading setter.

The hook is properly used to extract the setIsChatLoading function for controlling loading state.

---

63-66: LGTM! Proper loading state management around async operation.

The loading state is correctly set to true before the async submit call and reset to false after completion. This provides accurate loading feedback to users.

components/loading-spinner.tsx (5)

1-6: LGTM! Clean imports and dependencies.

All necessary imports are present including the loading context hook, Next.js Image component, React hooks, and CSS file.

---

8-10: LGTM! Proper state initialization.

The component correctly uses the loading context hook and initializes visibility state based on the current loading state.

---

12-20: LGTM! Well-implemented visibility timing logic.

The useEffect properly handles the fade-in/fade-out timing:

• Immediately shows spinner when loading starts
• Delays hiding by 500ms to allow fade-out animation to complete
• Properly cleans up timeout to prevent memory leaks

---

22-22: LGTM! Efficient early return.

Returning null when not visible is the correct React pattern for conditional rendering.

---

24-38: Verification successful: CSS classes and logo asset present

All required CSS classes and the logo image have been confirmed:

• app/loading.css defines .fade-in, .fade-out, and .spinning
• public/images/logo.svg exists

No further changes needed.

✨ Finishing Touches

• 📝 Generate Docstrings

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feature/loading-animation

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

• Review comments: Directly reply to a review comment made by CodeRabbit. Example:
  • I pushed a fix in commit <commit_id>, please review it.
  • Explain this complex logic.
  • Open a follow-up GitHub issue for this discussion.
• Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
  • @coderabbitai explain this code block.
  • @coderabbitai modularize this function.
• PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
  • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
  • @coderabbitai read src/utils.ts and explain its main purpose.
  • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
  • @coderabbitai help me debug CodeRabbit configuration file.

Support

Need help? Create a ticket on our support page for assistance with any issues or questions.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

• @coderabbitai pause to pause the reviews on a PR.
• @coderabbitai resume to resume the paused reviews.
• @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
• @coderabbitai full review to do a full review from scratch and review all the files again.
• @coderabbitai summary to regenerate the summary of the PR.
• @coderabbitai generate docstrings to generate docstrings for this PR.
• @coderabbitai generate sequence diagram to generate a sequence diagram of the changes in this PR.
• @coderabbitai generate unit tests to generate unit tests for this PR.
• @coderabbitai resolve resolve all the CodeRabbit review comments.
• @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
• @coderabbitai help to get help.

Other keywords and placeholders

• Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
• Add @coderabbitai summary to generate the high-level summary at a specific location in the PR description.
• Add @coderabbitai anywhere in the PR title to generate the title automatically.

CodeRabbit Configuration File (.coderabbit.yaml)

• You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
• Please see the configuration documentation for more information.
• If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

• Visit our Documentation for detailed information on how to use CodeRabbit.
• Join our Discord Community to get help, request features, and share feedback.
• Follow us on X/Twitter for updates and announcements.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
qcx	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 29, 2025 3:02pm

[codiumai-pr-agent-free]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Accessibility Concern The loading spinner overlay lacks proper accessibility attributes. Consider adding aria-live="polite" and role="status" to ensure screen readers announce the loading state. <div className={`fixed inset-0 z-50 flex items-center justify-center bg-black bg-opacity-50 ${ isMapLoaded ? 'fade-out' : 'fade-in' }`} > Potential Memory Leak The setTimeout cleanup may not handle all component unmount scenarios. Ensure the timeout is properly cleared if the component unmounts while the timer is still active. useEffect(() => { let timer: NodeJS.Timeout if (!isMapLoaded) { setIsVisible(true) } else { timer = setTimeout(() => setIsVisible(false), 500) // Corresponds to fadeOut duration } return () => clearTimeout(timer) }, [isMapLoaded])

[qodo-merge-pro]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Memory Leak The setTimeout timer may not be cleared properly if the component unmounts before the timer completes, potentially causing memory leaks or state updates on unmounted components. timer = setTimeout(() => setIsVisible(false), 500) // Corresponds to fadeOut duration } Race Condition The visibility state management could lead to race conditions if isMapLoaded changes rapidly, as multiple timers could be set without proper cleanup of previous ones. useEffect(() => { let timer: NodeJS.Timeout if (!isMapLoaded) { setIsVisible(true) } else { timer = setTimeout(() => setIsVisible(false), 500) // Corresponds to fadeOut duration } return () => clearTimeout(timer) }, [isMapLoaded])

[qodo-merge-pro]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
Possible issue	Fix timer cleanup logic The timer cleanup function will attempt to clear an undefined timer when !isMapLoaded is true. This could cause issues and should be handled properly by initializing the timer variable or adding a conditional check. components/loading-spinner.tsx [12-20] useEffect(() => { - let timer: NodeJS.Timeout + let timer: NodeJS.Timeout | undefined if (!isMapLoaded) { setIsVisible(true) } else { timer = setTimeout(() => setIsVisible(false), 500) // Corresponds to fadeOut duration } - return () => clearTimeout(timer) + return () => { + if (timer) clearTimeout(timer) + } }, [isMapLoaded]) Apply / Chat Suggestion importance[1-10]: 8 __ Why: The suggestion correctly identifies a bug where the cleanup function would attempt to clear an uninitialized timer, potentially causing a runtime error, and provides a robust fix.	Medium
	Fix hydration mismatch issue The initial state depends on isMapLoaded which may not be available during the first render, potentially causing hydration mismatches between server and client. Consider using a more predictable initial state. components/loading-spinner.tsx [10] -const [isVisible, setIsVisible] = useState(!isMapLoaded) +const [isVisible, setIsVisible] = useState(true) Apply / Chat Suggestion importance[1-10]: 8 __ Why: The suggestion correctly identifies a potential React hydration error due to initializing state from a context value, which can differ between server and client, and proposes a standard pattern to prevent it.	Medium
Update

[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

components/loading-spinner.tsx (1)

8-11: Consider initializing isVisible state more reliably.

The initial state useState(!isMapLoaded) could potentially cause issues if isMapLoaded changes between the initial render and when the useEffect runs. Consider initializing with a more predictable value.

-  const [isVisible, setIsVisible] = useState(!isMapLoaded)
+  const [isVisible, setIsVisible] = useState(true)

This ensures the spinner is initially visible and the useEffect will handle the proper state based on isMapLoaded.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between fcf317f and d72517c.

📒 Files selected for processing (4)

• app/layout.tsx (2 hunks)
• app/loading.css (1 hunks)
• components/header.tsx (3 hunks)
• components/loading-spinner.tsx (1 hunks)

🧰 Additional context used

🧬 Code Graph Analysis (1)

components/header.tsx (2)

components/map-loading-context.tsx (1)

• useMapLoading (20-26)

lib/utils/index.ts (1)

• cn (11-13)

🔇 Additional comments (10)

app/loading.css (1)

1-39: LGTM! Well-structured loading animations.

The CSS animations are properly defined with appropriate durations, timing functions, and keyframes. The infinite linear spin animation and matching 0.5s fade transitions provide smooth visual feedback for loading states.

app/layout.tsx (2)

13-13: LGTM! Proper import of the new loading component.

The import correctly references the new LoadingSpinner component that replaces the previous loading mechanism.

---

66-66: LGTM! Correct integration of LoadingSpinner.

The LoadingSpinner is properly placed within the MapLoadingProvider context, which it requires to access the loading state through the useMapLoading hook.

components/header.tsx (3)

7-8: LGTM! Proper imports for loading functionality.

The imports correctly bring in the useMapLoading hook for state management and the CSS file for animations.

---

20-20: LGTM! Proper hook usage.

The useMapLoading hook is correctly used to access the map loading state.

---

32-38: LGTM! Well-implemented conditional spinning animation.

The logo correctly applies the spinning animation when the map is not loaded (!isMapLoaded). The use of the cn utility function for conditional class application is appropriate and follows React best practices.

components/loading-spinner.tsx (4)

1-6: LGTM! Proper imports and client directive.

The component correctly imports necessary dependencies and uses the 'use client' directive for client-side interactivity.

---

12-20: LGTM! Well-implemented visibility management with proper cleanup.

The useEffect correctly manages the spinner visibility with appropriate delay for fade-out animation and properly cleans up the timeout to prevent memory leaks.

---

22-22: LGTM! Efficient early return pattern.

The early return when not visible prevents unnecessary DOM rendering.

---

24-38: LGTM! Well-structured fullscreen overlay with proper animations.

The overlay implementation is correct with:

• Proper fixed positioning and z-index for fullscreen coverage
• Centered content with flexbox
• Conditional fade animations based on loading state
• Appropriate semi-transparent background
• Properly sized spinning logo