Fix Chat Page Refreshing Before Saving Chat #4
Conversation
…tate` - prevent the UI from refreshing before the db is updated
…conds for performance
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Thanks @Saran33 - I used the code from this PR and it looks like it does solve the issue! |
WalkthroughThis update introduces several changes to improve chat state management and ensure database consistency before UI refreshes. The Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant ChatComponent
participant AIState
participant Database
User->>ChatComponent: Sends message
ChatComponent->>AIState: Updates AI state
AIState->>Database: Calls updateChat() to persist state
Database-->>AIState: Confirms save
AIState->>ChatComponent: Calls aiState.done()
ChatComponent->>ChatComponent: Triggers router.refresh() after save
Assessment against linked issues
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Hello @arvi18, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
Summary of Changes
This pull request addresses a race condition where the UI was refreshing before the database was updated, leading to potential data inconsistencies. To resolve this, the onSetAIState callback has been removed and replaced with an aiStateDone wrapper around aiState.done. This wrapper ensures that the chat is saved to the database before marking AI state updates as complete. Additionally, the Purchase component's status now defaults to requires_action and includes logic to check and update the purchase status based on tool call messages and system messages. A check was added to the chat.tsx to refresh the router if the chat contains 3 messages and the last message is a tool call.
Highlights
- Race Condition Fix: The pull request resolves a race condition by ensuring the database is updated before the UI refreshes, preventing data inconsistencies.
- Purchase Status Handling: The
Purchasecomponent now defaults torequires_actionand includes logic to update the purchase status based on tool call and system messages, including an expiration check. - Router Refresh Logic: The router refresh logic in
chat.tsxhas been updated to handle scenarios where the first user message results in a tool call response.
Changelog
Click here to see the changelog
- components/chat.tsx
- Added import for AI type.
- Updated the
useAIStatehook to specify the type astypeof AI. - Added a check to refresh the router if the chat contains 3 messages and the last message is a tool call.
- components/stocks/stock-purchase.tsx
- Imported
useEffecthook. - Added
toolCallIdprop to thePurchaseinterface. - The
statusprop now defaults torequires_actioninstead ofexpired. - Added a
useEffecthook to check and update the purchase status based on tool call messages and system messages. - Added logic to set purchase status to 'expired' if the tool call message was created more than 30 seconds ago, and an interval to check every 5 seconds whether the status should be
expired.
- Imported
- lib/chat/actions.tsx
- Imported
MutableAIStatetype. - Imported
unixTsNowfromlib/utils. - Replaced direct calls to
aiState.donewith calls toaiStateDoneto ensure the chat is saved before the state is updated. - Added
createdAtproperty to the tool call message. - Passed
toolCallIdas a prop to thePurchasecomponent. - Removed
onSetAIStateand replaced it withaiStateDoneto prevent race conditions. - Added logic to handle errors in
runAsyncFnWithoutBlocking.
- Imported
- lib/types.ts
- Added an optional
createdAtproperty to theMessageinterface. - Added
MutableAIStatetype definition.
- Added an optional
- lib/utils.ts
- Added error handling to
runAsyncFnWithoutBlocking. - Added
unixTsNowfunction to get the current Unix timestamp.
- Added error handling to
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A race, a chase,
UI's swift, DB's slow pace.
Wrapper waits, all's well.
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Code Review
This pull request addresses a race condition in the chat page refreshing logic and improves the purchase component's status updates. The changes seem well-structured and address the identified issues effectively.
Summary of Findings
- Potential infinite loop in
useEffect: TheuseEffectinPurchasecomponent depends onaiState.messages. IfsetAIStateis called within theuseEffectcallback, it could potentially lead to an infinite loop. While the current logic seems to prevent this, it's a pattern that warrants careful consideration. - Clarity of
checkPurchaseStatuslogic: ThecheckPurchaseStatusfunction inPurchasecomponent could benefit from additional comments to clarify the order of operations and the conditions under which the purchase status is updated.
Merge Readiness
The pull request appears to address the identified issues effectively. However, the potential for an infinite loop in the Purchase component's useEffect hook should be carefully considered. I am unable to approve this pull request, and recommend that others review and approve this code before merging. I recommend that the author address the high severity issue before merging.
| useEffect(() => { | ||
| const checkPurchaseStatus = () => { | ||
| if (purchaseStatus !== 'requires_action') { | ||
| return; | ||
| } | ||
| // check for purchase completion | ||
| // Find the tool message with the matching toolCallId | ||
| const toolMessage = aiState.messages.find( | ||
| message => | ||
| message.role === 'tool' && | ||
| message.content.some(part => part.toolCallId === toolCallId) | ||
| ); | ||
|
|
||
| if (toolMessage) { | ||
| const toolMessageIndex = aiState.messages.indexOf(toolMessage); | ||
| // Check if the next message is a system message containing "purchased" | ||
| const nextMessage = aiState.messages[toolMessageIndex + 1]; | ||
| if ( | ||
| nextMessage?.role === 'system' && | ||
| nextMessage.content.includes('purchased') | ||
| ) { | ||
| setPurchaseStatus('completed'); | ||
| } else { | ||
| // Check for expiration | ||
| const requestedAt = toolMessage.createdAt; | ||
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } | ||
| } | ||
| } | ||
| }; | ||
| checkPurchaseStatus(); | ||
|
|
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| let intervalId: NodeJS.Timeout | null = null; | ||
| if (purchaseStatus === 'requires_action') { | ||
| intervalId = setInterval(checkPurchaseStatus, 5000); | ||
| } | ||
|
|
||
| return () => { | ||
| if (intervalId) { | ||
| clearInterval(intervalId); | ||
| } | ||
| }; | ||
| }, [purchaseStatus, toolCallId, aiState.messages]); |
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The useEffect hook depends on aiState.messages. If setPurchaseStatus triggers a re-render and subsequently modifies aiState.messages (directly or indirectly), it could lead to an infinite loop. While the current logic seems to prevent this, it's a pattern that warrants careful consideration. Consider using a more stable dependency or a ref to store the previous state.
| const checkPurchaseStatus = () => { | ||
| if (purchaseStatus !== 'requires_action') { | ||
| return; | ||
| } | ||
| // check for purchase completion | ||
| // Find the tool message with the matching toolCallId | ||
| const toolMessage = aiState.messages.find( | ||
| message => | ||
| message.role === 'tool' && | ||
| message.content.some(part => part.toolCallId === toolCallId) | ||
| ); | ||
|
|
||
| if (toolMessage) { | ||
| const toolMessageIndex = aiState.messages.indexOf(toolMessage); | ||
| // Check if the next message is a system message containing "purchased" | ||
| const nextMessage = aiState.messages[toolMessageIndex + 1]; | ||
| if ( | ||
| nextMessage?.role === 'system' && | ||
| nextMessage.content.includes('purchased') | ||
| ) { | ||
| setPurchaseStatus('completed'); | ||
| } else { | ||
| // Check for expiration | ||
| const requestedAt = toolMessage.createdAt; | ||
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } | ||
| } | ||
| } |
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The logic within checkPurchaseStatus could benefit from additional comments to clarify the order of operations and the conditions under which the purchase status is updated. This would improve readability and maintainability.
| fn().catch(error => { | ||
| console.error('An error occurred in the async function:', error); | ||
| }); |
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This catch block logs errors that occur within the async function. This is good for debugging. Consider adding more context to the error message, such as the function name or arguments.
| fn().catch(error => { | |
| console.error('An error occurred in the async function:', error); | |
| }); | |
| fn().catch(error => { | |
| console.error(`An error occurred in the async function ${fn.name}:`, error); | |
| }); |
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Actionable comments posted: 2
🧹 Nitpick comments (3)
components/stocks/stock-purchase.tsx (1)
89-91: Add fallback for missing timestamps.When checking for expiration, there's a proper check for when
createdAtis undefined, but you might want to add logging to track when this happens as it shouldn't be undefined.// Check for expiration const requestedAt = toolMessage.createdAt; if (!requestedAt || unixTsNow() - requestedAt > 30) { + if (!requestedAt) { + console.warn('Missing createdAt timestamp for tool call', toolCallId); + } setPurchaseStatus('expired'); }lib/chat/actions.tsx (2)
87-100: Minor: avoid multipleaiState.get()calls in the same tickInside
confirmPurchaseyou callaiState.get()three times when constructingnewState. Capture it once to guarantee consistency and reduce overhead:- aiStateDone(aiState, { - ...aiState.get(), - messages: [ - ...aiState.get().messages, + const prev = aiState.get() + aiStateDone(aiState, { + ...prev, + messages: [ + ...prev.messages, { id: nanoid(),
584-590: Props spread can leak unexpected fields intoPurchase
tool.resultalready containssymbol,price,numberOfShares, and now possiblystatus. Spreading the result object means any new property returned by the backend will silently become a prop, bypassingPurchase's explicit interface. Prefer listing allowed props:- props={{ - ...(tool.result as object), - toolCallId: tool.toolCallId, - }} + props={{ + symbol: tool.result.symbol, + price: tool.result.price, + numberOfShares: tool.result.numberOfShares, + status: tool.result.status ?? 'requires_action', + toolCallId: tool.toolCallId, + }}
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (5)
components/chat.tsx(3 hunks)components/stocks/stock-purchase.tsx(4 hunks)lib/chat/actions.tsx(13 hunks)lib/types.ts(2 hunks)lib/utils.ts(2 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
components/chat.tsx (1)
lib/chat/actions.tsx (1)
AI(500-523)
lib/types.ts (1)
lib/chat/actions.tsx (1)
AIState(490-493)
🪛 Biome (1.9.4)
lib/chat/actions.tsx
[error] 530-530: Change to an optional chain.
Unsafe fix: Change to an optional chain.
(lint/complexity/useOptionalChain)
🔇 Additional comments (12)
lib/utils.ts (2)
54-57: Good addition of error handling.Adding error handling to
runAsyncFnWithoutBlockingis a good improvement to prevent unhandled promise rejections. This will help with debugging by ensuring errors are logged rather than silently failing.
93-93: Well-implemented utility function.The
unixTsNowfunction provides a clean way to get Unix timestamps in seconds, which is used for tracking message creation times and determining expiration in the Purchase component.components/chat.tsx (3)
3-3: Good type import for better type safety.Importing the
AItype from actions provides better type checking and IDE support.
29-29: Improved type annotation.Adding the explicit type annotation to
useAIStateensures proper type inference for the AI state.
45-46: Good enhancement to router refresh logic.This additional condition correctly handles the case where the first user message triggers a tool call response, which was part of the race condition issue being fixed in this PR.
lib/types.ts (2)
5-5: Good addition of timestamp property.Adding the optional
createdAttimestamp to theMessagetype supports the new expiration tracking logic in the Purchase component.
44-48: Well-defined type for AI state management.The
MutableAIStategeneric type provides a clear interface for interacting with AI state, supporting the improved state management described in the PR objectives.components/stocks/stock-purchase.tsx (4)
13-13: Good addition of toolCallId for purchase tracking.Adding the
toolCallIdproperty allows the component to identify the specific tool call message in the AI state, enabling proper status tracking.
18-18: Good state management approach.Setting a default status of
'requires_action'and tracking it with an internal state variable allows the component to manage its lifecycle independently while still being initializable from props.Also applies to: 23-23
64-107: Well-implemented purchase status monitoring.This effect properly tracks the purchase status by:
- Finding the tool message with the matching toolCallId
- Checking if a subsequent system message indicates purchase completion
- Checking for expiration based on the timestamp
- Setting up an interval to periodically check status
- Properly cleaning up the interval
This addresses the core issue by ensuring UI state correctly reflects the actual status of the purchase transaction.
118-118: Consistent UI rendering based on internal state.The conditional rendering now correctly uses the internal
purchaseStatusstate instead of the prop, which is consistent with the state management approach.Also applies to: 183-183, 188-188
lib/chat/actions.tsx (1)
383-398: Ensure the extracreatedAtfield complies withMessagetypingAdding
createdAtto atoolmessage is great for timeout logic, but double-check thatMessagein@/lib/typesmarks it as optional. If not, TypeScript will complain in other call sites.
Also consider addingcreatedAtto all messages when they are first inserted (e.g. insubmitUserMessage) to keep the data model uniform.
| const updateChat = async (state: AIState) => { | ||
| 'use server' | ||
|
|
||
| if (session && session.user) { | ||
| const { chatId, messages } = state | ||
|
|
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| const createdAt = new Date() | ||
| const userId = session.user.id as string | ||
| const path = `/chat/${chatId}` | ||
|
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| const firstMessageContent = messages[0].content as string | ||
| const title = firstMessageContent.substring(0, 100) | ||
|
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| const chat: Chat = { | ||
| id: chatId, | ||
| title, | ||
| userId, | ||
| createdAt, | ||
| messages, | ||
| path | ||
| } | ||
| const session = await auth() | ||
|
|
||
| await saveChat(chat) | ||
| } else { | ||
| return | ||
| if (session && session.user) { | ||
| const { chatId, messages } = state | ||
|
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| const createdAt = new Date() | ||
| const userId = session.user.id as string | ||
| const path = `/chat/${chatId}` | ||
|
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| const firstMessageContent = messages[0].content as string | ||
| const title = firstMessageContent.substring(0, 100) | ||
|
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| const chat: Chat = { | ||
| id: chatId, | ||
| title, | ||
| userId, | ||
| createdAt, | ||
| messages, | ||
| path | ||
| } | ||
|
|
||
| await saveChat(chat) |
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🛠️ Refactor suggestion
updateChat omits the chatId field and is fragile when the first message is non-text
-
The
Chatobject you persist containsidbut notchatId, whereas downstream code (seegetUIStateFromAIState) relies onchatId. When the chat is read back from the DB the field will be missing andaiState.chatIdwill beundefined, breaking UI-key generation and router paths. -
titleis produced viamessages[0].content.substring(...).
• Ifmessagesis empty this will throw.
• For tool calls or any structured message,contentis an array, not a string – callingsubstringwill crash.
A robust fix:
- const firstMessageContent = messages[0].content as string
- const title = firstMessageContent.substring(0, 100)
+ const firstContent =
+ typeof messages[0]?.content === 'string' ? messages[0].content : ''
+ const title = firstContent.slice(0, 100)
const chat: Chat = {
+ chatId, // keep in sync with UI layer
id: chatId,
@@
path
}🧰 Tools
🪛 Biome (1.9.4)
[error] 530-530: Change to an optional chain.
Unsafe fix: Change to an optional chain.
(lint/complexity/useOptionalChain)
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | ||
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); | ||
| }; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
aiStateDone needs error handling & preserves race-condition fix
Good idea to gate aiState.done behind updateChat, but if updateChat throws, aiState.done is silently skipped and UI never updates. Wrap the await in try / catch / finally so the UI is never blocked by a persistence failure while still logging the error:
-runAsyncFnWithoutBlocking(async () => {
- await updateChat(newState);
- aiState.done(newState);
-});
+runAsyncFnWithoutBlocking(async () => {
+ try {
+ await updateChat(newState);
+ } catch (err) {
+ console.error('[aiStateDone] failed to persist chat', err);
+ // TODO: surface non-fatal toast to the user if desired
+ } finally {
+ aiState.done(newState);
+ }
+});📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| }); | |
| }; | |
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| try { | |
| await updateChat(newState); | |
| } catch (err) { | |
| console.error('[aiStateDone] failed to persist chat', err); | |
| // TODO: surface non-fatal toast to the user if desired | |
| } finally { | |
| aiState.done(newState); | |
| } | |
| }); | |
| }; |
|
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Code Review: Chat Persistence and Purchase Flow👍 Well Done
📌 Files Processed
📝 Additional Comments
|
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | ||
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); | ||
| }; |
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Race Condition Fix Needs Error Handling
Race condition fix properly sequences database updates before UI state changes, but lacks error handling. If updateChat fails, the UI state may not be updated, potentially causing inconsistency between database and UI state.
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| }); | |
| }; | |
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| try { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| } catch (error) { | |
| console.error('Failed to update chat:', error); | |
| // Still update UI state to prevent blocking the interface | |
| aiState.done(newState); | |
| } | |
| }); | |
| }; |
Standards
- CWE-362
- OWASP-A01
|
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Code Review: Chat Persistence and Purchase Flow👍 Well Done
📌 Files Processed
📝 Additional Comments
|
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); |
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Missing Error Propagation
aiStateDone doesn't handle database update failures. If updateChat fails, aiState.done still executes, potentially causing state inconsistency between UI and database.
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| }); | |
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| try { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| } catch (error) { | |
| console.error('Failed to update chat before state update:', error); | |
| // Still update UI state to prevent UI freezing, but log the inconsistency | |
| aiState.done(newState); | |
| } | |
| }); | |
| }; |
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- ISO-IEC-25010-Functional-Correctness-Appropriateness
|
|
||
| export function Purchase({ | ||
| props: { numberOfShares, symbol, price, status = 'expired' } | ||
| props: { numberOfShares, symbol, price, toolCallId, status = 'requires_action' } |
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Missing Purchase Status
Default status is set to 'requires_action' but the actual status from props is ignored. This creates inconsistency between initial prop value and default parameter, potentially causing incorrect purchase state display.
Standards
- Business-Rule-Validation
- Logic-Verification-Consistency
- Algorithm-Correctness-State-Management
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } |
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Incomplete Status Check
The expiration logic checks if createdAt is missing or exceeds 30 seconds, but doesn't validate the timestamp type or handle invalid timestamps. This could cause incorrect expiration behavior with malformed timestamp data.
Standards
- Data-Validation-Completeness
- Logic-Verification-Boundary-Conditions
- Algorithm-Correctness-Input-Validation
| const requestedAt = toolMessage.createdAt; | ||
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } |
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Missing Expiration Validation
Hardcoded 30-second expiration lacks unit specification (seconds/minutes). If seconds, short timeout could cause premature expiration. If minutes, long timeout increases attack window.
Standards
- CWE-613
- OWASP-A02
| props: Purchase | ||
| }) { | ||
| const [value, setValue] = useState(numberOfShares || 100) | ||
| const [purchaseStatus, setPurchaseStatus] = useState(status); |
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Purchase Status Manipulation
Client-side purchase status state can be manipulated by attackers. Initial status from props can be overridden by malicious client-side code, potentially bypassing purchase controls.
Standards
- CWE-642
- OWASP-A01
| fn().catch(error => { | ||
| console.error('An error occurred in the async function:', error); | ||
| }); |
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Error Handling Gap
Error is caught but only logged, without recovery mechanism. Unhandled errors in async functions could lead to incomplete operations without proper recovery path.
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- SRE-Error-Handling
|
/refacto-test-arvi |
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Code Review: Chat Persistence and Purchase Status Tracking👍 Well Done
📌 Files Processed
📝 Additional Comments
|
| fn().catch(error => { | ||
| console.error('An error occurred in the async function:', error); | ||
| }); | ||
| }; |
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Unhandled Promise Rejection
Error is logged but not propagated. System continues execution after async failure without proper recovery. Could lead to inconsistent state and silent failures.
| fn().catch(error => { | |
| console.error('An error occurred in the async function:', error); | |
| }); | |
| }; | |
| fn().catch(error => { | |
| console.error('An error occurred in the async function:', error); | |
| // Notify application about failure for potential recovery | |
| window.dispatchEvent(new CustomEvent('async-error', { detail: error })); | |
| }); |
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Error-Handling
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | ||
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); | ||
| }; |
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Race Condition Fix
This code correctly resolves a race condition where UI refreshes before database updates complete. However, the implementation has a potential performance issue - if updateChat() fails, aiState.done() never executes, potentially leaving the UI in a loading state indefinitely. Adding error handling would ensure UI responsiveness even during database failures.
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| await updateChat(newState); | |
| aiState.done(newState); | |
| }); | |
| }; | |
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | |
| runAsyncFnWithoutBlocking(async () => { | |
| // resolves race condition in aiState.done - the UI refreshed before db was updated | |
| try { | |
| await updateChat(newState); | |
| } catch (error) { | |
| console.error('Failed to update chat:', error); | |
| } finally { | |
| aiState.done(newState); | |
| } | |
| }); | |
| }; |
Standards
- ISO-IEC-25010-Performance-Time-Behaviour
- Netflix-Error-Handling
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| export function Purchase({ | ||
| props: { numberOfShares, symbol, price, status = 'expired' } | ||
| props: { numberOfShares, symbol, price, toolCallId, status = 'requires_action' } |
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Purchase Status Inconsistency
Default status 'requires_action' overrides actual status passed from parent component. This forces all purchases to start in 'requires_action' state even when they should be 'completed' or 'expired', breaking status continuity.
Standards
- Business-Rule-State-Management
- Logic-Verification-Props-Consistency
| const updateChat = async (state: AIState) => { | ||
| 'use server' | ||
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||
| if (session && session.user) { | ||
| const { chatId, messages } = state | ||
|
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| const createdAt = new Date() | ||
| const userId = session.user.id as string | ||
| const path = `/chat/${chatId}` | ||
|
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| const firstMessageContent = messages[0].content as string | ||
| const title = firstMessageContent.substring(0, 100) | ||
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| const chat: Chat = { | ||
| id: chatId, | ||
| title, | ||
| userId, | ||
| createdAt, | ||
| messages, | ||
| path | ||
| } | ||
| const session = await auth() | ||
|
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||
| await saveChat(chat) | ||
| } else { | ||
| return | ||
| if (session && session.user) { | ||
| const { chatId, messages } = state | ||
|
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| const createdAt = new Date() | ||
| const userId = session.user.id as string | ||
| const path = `/chat/${chatId}` | ||
|
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| const firstMessageContent = messages[0].content as string | ||
| const title = firstMessageContent.substring(0, 100) | ||
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| const chat: Chat = { | ||
| id: chatId, | ||
| title, | ||
| userId, | ||
| createdAt, | ||
| messages, | ||
| path | ||
| } | ||
|
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||
| await saveChat(chat) | ||
| } else { | ||
| return | ||
| } |
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Extract Chat Persistence
The updateChat function duplicates logic from the original onSetAIState method. This violates DRY principle and creates maintenance burden when chat persistence logic changes. Consider refactoring to reuse the existing saveChat functionality.
Standards
- Clean-Code-DRY
- SOLID-SRP
| { | ||
| id: nanoid(), | ||
| role: 'tool', | ||
| createdAt: unixTsNow(), |
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Timestamp Inconsistency
Inconsistent timestamp format between message createdAt (Unix timestamp) and chat createdAt (Date object). This creates confusion and potential bugs when processing timestamps. Consider standardizing timestamp formats across the application.
Standards
- Clean-Code-Consistency
| useEffect(() => { | ||
| const checkPurchaseStatus = () => { | ||
| if (purchaseStatus !== 'requires_action') { | ||
| return; | ||
| } | ||
| // check for purchase completion | ||
| // Find the tool message with the matching toolCallId | ||
| const toolMessage = aiState.messages.find( | ||
| message => | ||
| message.role === 'tool' && | ||
| message.content.some(part => part.toolCallId === toolCallId) | ||
| ); | ||
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| if (toolMessage) { | ||
| const toolMessageIndex = aiState.messages.indexOf(toolMessage); | ||
| // Check if the next message is a system message containing "purchased" | ||
| const nextMessage = aiState.messages[toolMessageIndex + 1]; | ||
| if ( | ||
| nextMessage?.role === 'system' && | ||
| nextMessage.content.includes('purchased') | ||
| ) { | ||
| setPurchaseStatus('completed'); | ||
| } else { | ||
| // Check for expiration | ||
| const requestedAt = toolMessage.createdAt; | ||
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } | ||
| } | ||
| } | ||
| }; | ||
| checkPurchaseStatus(); | ||
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| let intervalId: NodeJS.Timeout | null = null; | ||
| if (purchaseStatus === 'requires_action') { | ||
| intervalId = setInterval(checkPurchaseStatus, 5000); | ||
| } | ||
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| return () => { | ||
| if (intervalId) { | ||
| clearInterval(intervalId); | ||
| } | ||
| }; | ||
| }, [purchaseStatus, toolCallId, aiState.messages]); |
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Purchase Status Race
Purchase status expiration uses fixed 30-second timeout without configuration. Long-running operations may incorrectly expire. System reliability depends on arbitrary timeout value.
Standards
- ISO-IEC-25010-Reliability-Maturity
- ISO-IEC-25010-Functional-Correctness-Appropriateness
| const toolMessage = aiState.messages.find( | ||
| message => | ||
| message.role === 'tool' && | ||
| message.content.some(part => part.toolCallId === toolCallId) | ||
| ); | ||
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| if (toolMessage) { | ||
| const toolMessageIndex = aiState.messages.indexOf(toolMessage); | ||
| // Check if the next message is a system message containing "purchased" | ||
| const nextMessage = aiState.messages[toolMessageIndex + 1]; | ||
| if ( | ||
| nextMessage?.role === 'system' && | ||
| nextMessage.content.includes('purchased') | ||
| ) { | ||
| setPurchaseStatus('completed'); | ||
| } else { | ||
| // Check for expiration | ||
| const requestedAt = toolMessage.createdAt; | ||
| if (!requestedAt || unixTsNow() - requestedAt > 30) { | ||
| setPurchaseStatus('expired'); | ||
| } | ||
| } | ||
| } |
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Purchase Status Validation
The purchase status validation relies on string matching 'purchased' in message content. An attacker could potentially craft a message containing this string to falsely indicate purchase completion.
Standards
- CWE-20
- OWASP-A03
|
/refacto-test-arvi |
|
Refacto is reviewing this PR. Please wait for the review comments to be posted. |
Code Review: Chat and Stock Purchase Components👍 Well Done
📌 Files Processed
📝 Additional Comments
|
| const aiStateDone = (aiState: MutableAIState<AIState>, newState: AIState) => { | ||
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); | ||
| }; |
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Race Condition Fix Needs Error Handling
The aiStateDone function correctly addresses a race condition but introduces a potential reliability issue. If updateChat fails, aiState.done will still be called, potentially causing state inconsistency between UI and database. This could lead to data loss or incorrect UI state.
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Error-Handling
| useEffect(() => { | ||
| const checkPurchaseStatus = () => { | ||
| if (purchaseStatus !== 'requires_action') { | ||
| return; | ||
| } | ||
| // check for purchase completion | ||
| // Find the tool message with the matching toolCallId | ||
| const toolMessage = aiState.messages.find( | ||
| message => | ||
| message.role === 'tool' && | ||
| message.content.some(part => part.toolCallId === toolCallId) | ||
| ); |
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Missing Error Handling
The code accesses message.content without checking if it's an array or if it exists. If message.content is undefined or not an array, this will cause a runtime error. This could lead to the purchase status check failing silently, leaving transactions in an inconsistent state.
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Error-Handling
| let intervalId: NodeJS.Timeout | null = null; | ||
| if (purchaseStatus === 'requires_action') { | ||
| intervalId = setInterval(checkPurchaseStatus, 5000); | ||
| } | ||
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| return () => { | ||
| if (intervalId) { | ||
| clearInterval(intervalId); | ||
| } | ||
| }; |
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Cleanup Missing
The cleanup function correctly clears the interval, but there's no handling for errors that might occur during checkPurchaseStatus execution. If an error occurs in the interval callback, it could cause unhandled promise rejections and leave the component in an inconsistent state.
Standards
- ISO-IEC-25010-Reliability-Recoverability
- SRE-Error-Handling
|
/refacto-test-arvi |
|
Refacto is reviewing this PR. Please wait for the review comments to be posted. |
Code Review: Chat System👍 Well Done
📌 Files Processed
📝 Additional Comments
|
| let intervalId: NodeJS.Timeout | null = null; | ||
| if (purchaseStatus === 'requires_action') { | ||
| intervalId = setInterval(checkPurchaseStatus, 5000); |
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Purchase Status Leak
The interval is created but might not be cleared if the component unmounts while purchaseStatus is still 'requires_action'. This can cause memory leaks and continued execution of the checkPurchaseStatus function after component unmount.
Standards
- ISO-IEC-25010-Reliability-Resource-Utilization
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Resource-Management
| const checkPurchaseStatus = () => { | ||
| if (purchaseStatus !== 'requires_action') { | ||
| return; | ||
| } |
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Missing Error Handling
The checkPurchaseStatus function lacks try/catch error handling. If any part of the function throws an exception, the interval will continue running but the status checking will stop working, potentially leaving purchases in a pending state.
Standards
- ISO-IEC-25010-Reliability-Fault-Tolerance
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Error-Handling
| runAsyncFnWithoutBlocking(async () => { | ||
| // resolves race condition in aiState.done - the UI refreshed before db was updated | ||
| await updateChat(newState); | ||
| aiState.done(newState); | ||
| }); | ||
| }; |
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Potential Race Condition
While this code aims to fix a race condition, it introduces a new one. If multiple aiStateDone calls occur in quick succession, they may execute concurrently, potentially causing database consistency issues. Consider adding a mechanism to queue or debounce these operations.
Standards
- ISO-IEC-25010-Reliability-Maturity
- ISO-IEC-25010-Functional-Correctness-Appropriateness
- SRE-Concurrency-Management
aiState.doneis called beforeonSetAIStateonSetAIStatecallback is removed and instead anaiStateDonewrapper aroundaiState.doneis called in place ofaiState.done. This wrapper function waits until the chat is saved to the db before marking the aiState updates as done.chat.tsx, theuseEffecthook for refreshing the router contains an additional check to refresh the router if the chat contains 3 messages and the last message is a tool call. The existing check only checked for 2 messages, meaning the router was not refreshed if the first user message in a chat resulted in a tool call response.Purchasecomponentstatusnow defaults torequires_action, instead ofexpired, with auseEffecthook added to check and update the purchase status based on the relevant tool call message and any related system messages.toolCallIdis passed as a prop toPurchase. This is used to find the relevant tool call in theaiState.messages.purchased, then the purchase is marked as completed.createdAtproperty is added to theMessageinterface. If the tool call message was created more than 30 seconds ago, the checkout is marked as expired. While the status remains in arequires_actionstate, an interval is set to check every 5 seconds whether the status should beexpired.Summary by CodeRabbit