website/templates/join_room.html (5)

28-28: Ensure safe JSON encoding for data attributes.

Embedding reactions as a JSON string in data-reactions is a good approach for synchronizing state. However, ensure that the escapejs filter is always used and that the data is never too large to fit comfortably in a data attribute. If reactions grow large, consider a more scalable approach (e.g., fetching on demand).

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35-67: Server-rendered reactions logic is robust and user-friendly.

The template logic for rendering both existing reactions and default quick reactions is clear and matches the new client-side approach. Good use of accessibility features (button, span, title). Consider adding aria-label attributes for better screen reader support.

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406-467: updateReactions function is robust, but consider accessibility and performance.

• The function now robustly clears and rebuilds the reactions container, handling both existing and quick reactions.
• Good use of logging and error handling.
• Consider adding aria-label to dynamically created buttons for accessibility.
• If the number of reactions grows, rebuilding the entire container on every update could be inefficient; consider diffing or partial updates if performance becomes an issue.

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529-530: Debug logging for WebSocket messages is helpful for development.

Consider gating these logs behind a debug flag or removing them in production for cleaner console output.

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636-637: Console log on DOMContentLoaded is useful for debugging.

As with other logs, consider removing or gating in production.

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Review profile: CHILL
Plan: Pro

website/templates/join_room.html (6)

408-424: Review debug logging and early exit checks in updateReactions
You’ve added console.log and two console.warn calls to trace missing elements, then clear the container. For production, consider gating verbose logs behind a debug flag or removing them to avoid console clutter. The early returns are a good safety net.

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451-462: DRY up common quick reaction button creation
The loop for commonEmojis duplicates markup found elsewhere (e.g., in appendMessage). Extract a helper function or template to reduce duplication. Also, switch from innerHTML to textContent when inserting the emoji to further mitigate XSS concerns.

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465-468: Enhance error messaging in the catch block
The catch logs the raw error and shows a generic notification. Consider including messageId or more context in the notification (e.g., "Failed to update reactions for message ${messageId}") to aid debugging.

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531-531: Remove or gate raw WebSocket message logging
console.log('Received websocket message:', data); is useful for debugging but may expose sensitive chat payloads in production. Wrap it in a debug check or remove once validated.

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638-638: Remove initialization debug log
The console.log('DOM loaded, initializing chat room...'); is helpful during development but should be removed or wrapped under a verbose/debug flag in production.

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680-687: Bind click handlers to “add reaction” buttons
Setting up the .add-reaction-btn event listeners for pre-rendered messages duplicates logic in appendMessage. Extract this into a shared initializer to avoid drift if the handler signature changes.

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Review profile: CHILL
Plan: Pro

website/templates/join_room.html (2)

441-447: Avoid innerHTML to prevent XSS.

Building reactionButton.innerHTML with ${emoji} and ${users.length} can introduce XSS risks if these values are ever user-controlled. Instead, create child <span> elements and assign .textContent to emoji and the count to ensure safe insertion.

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456-460: Sanitize quick reaction button labels.

Similar to existing reactions, using innerHTML for <span>${emoji}</span> could pose injection risks. Construct the <span> via document.createElement('span') and set .textContent = emoji. This change eliminates any potential for HTML injection.

website/templates/join_room.html (6)

50-65: Fallback to default quick reactions.

Providing default emojis when there are no reactions improves discoverability. However, the list here (👍, ❤️, 😊) differs from the JS-side commonEmojis (['👍','❤️','😊','👏','🔥']). Consider centralizing the default emoji list in a shared context variable or constant to avoid discrepancies.

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69-69: Improve accessibility for “add reaction” button.

Changing the span from “😀” to “+” clarifies intent. To further improve accessibility, add an aria-label="Add reaction" or visually hidden text so screen readers announce the button’s purpose.

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408-415: Review debug logging in production.

The initial console.log and console.warn calls help during development but may clutter the console in production. Consider gating these logs behind a debug flag or using a logging library that can adjust verbosity levels.

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638-639: Remove or guard initial debug log.

console.log('DOM loaded, initializing chat room...') is useful for debuggers. In production, wrap such logs under a debug condition or remove them to avoid unnecessary console noise.

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669-677: Deduplicate event listener setup.

Event listeners for .reaction-btn and .add-reaction-btn are registered both here and in appendMessage. Consider extracting this into a helper (e.g., initReactionButtons(container)) and calling it in both places to adhere to DRY principles.

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719-723: Move inline style injection to a CSS file.

Injecting styles via JavaScript can complicate maintenance and make them harder to override. It would be cleaner to place these .reactions-container styles in your Tailwind config or a dedicated CSS file, leveraging existing build tooling.

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