fix: set localStorage for endpoints on login page #86
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Reviewer's Guide by SourceryThis PR fixes a bug where localStorage was not being set for endpoints on the login page. The change introduces a useEffect hook that checks for stored endpoint settings upon app initialization. If no settings are found, default values are stored in localStorage. Sequence diagram for endpoint settings initializationsequenceDiagram
participant App
participant LocalStorage
participant Config
App->>Config: getStoredEndpointSettings()
Config->>LocalStorage: Check settings
LocalStorage-->>Config: Return stored settings
Config-->>App: Return settings
alt No stored settings
App->>Config: getDefaultServer()
Config-->>App: Return default server
App->>Config: getDefaultAppId()
Config-->>App: Return default app ID
App->>Config: setEndpointSettings(server, appId)
Config->>LocalStorage: Store settings
end
Flow diagram for endpoint settings initializationgraph TD
A[Start] --> B{Check stored
endpoint settings}
B -->|Settings exist| C[Continue with
existing settings]
B -->|No settings| D[Get default server]
D --> E[Get default app ID]
E --> F[Set endpoint settings
in localStorage]
F --> C
File-Level Changes
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AI Code Review
🔴 BUGS & LOGICAL ISSUES:
• Incomplete validation of stored settings:
Description: The code checks if getStoredEndpointSettings() returns a falsy value and then sets endpoint defaults. However, there is no validation to ensure “storedSettings” is actually correct or complete. If it is partially corrupt or missing certain fields (not strictly falsy), the application might continue with invalid settings.
Potential impacts: Users could end up running the app with incorrect or partially set configurations without noticing.
Reproduction scenarios:
1. If getStoredEndpointSettings() returns an empty object instead of null/undefined, the current logic will not reset the settings.
2. If getStoredEndpointSettings() throws or returns malformed data, the effect might fail silently.
Fix implementation:
useEffect(() => {
let storedSettings;
try {
storedSettings = getStoredEndpointSettings();
// Add a check for structure or required fields:
if (!storedSettings || !storedSettings.server || !storedSettings.appId) {
throw new Error("Invalid or incomplete stored settings");
}
} catch (error) {
// Fallback to defaults if settings are invalid or retrieval fails
setEndpointSettings(getDefaultServer(), getDefaultAppId());
}
}, []);
🟡 RELIABILITY CONCERNS:
• Potential lack of error handling if config retrieval fails:
Edge cases: For instance, if the stored settings are fetched from local storage and local storage is disabled or corrupted, getStoredEndpointSettings() might throw an error or return invalid data.
Potential failure scenarios: The browser might be in private mode or under strict security policies and fail to read from local storage, causing an unhandled exception.
Mitigation steps:
- Wrap getStoredEndpointSettings() in a try/catch block.
- Provide a user-facing warning or fallback UI if reading from storage fails.
- Implement robust checks for presence and validity of stored settings.
💡 ROBUSTNESS IMPROVEMENTS:
• Error handling enhancements:
- Return or log detailed error messages when getStoredEndpointSettings() or setEndpointSettings() fails:
try {
const storedSettings = getStoredEndpointSettings();
if (!storedSettings) {
setEndpointSettings(getDefaultServer(), getDefaultAppId());
}
} catch (error) {
console.error("Failed to retrieve settings:", error);
setEndpointSettings(getDefaultServer(), getDefaultAppId());
}
• Input validation additions:
- Validate the shape of storedSettings and handle unexpected fields to avoid future incompatibilities:
const validateSettings = (settings) => {
return settings && typeof settings.server === "string" && typeof settings.appId === "number";
};
• State management improvements:
- Consider whether the effect should run again if storedSettings changes externally. If so, remove [] dependency to re-validate when needed:
useEffect(() => {
// logic...
}, [/* dependencies as needed */]);
• Code example for improved checks and fallback:
useEffect(() => {
try {
const storedSettings = getStoredEndpointSettings();
if (!validateSettings(storedSettings)) {
console.warn("Stored settings are incomplete or invalid, using defaults.");
setEndpointSettings(getDefaultServer(), getDefaultAppId());
}
} catch (err) {
console.error("Error retrieving stored settings:", err);
setEndpointSettings(getDefaultServer(), getDefaultAppId());
}
}, []);
![sourcery-ai[bot]](https://avatars.githubusercontent.com/in/48477?s=60&v=4){kind=small}
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Hey @aum-deriv - I've reviewed your changes - here's some feedback:
Overall Comments:
- Please fill out the PR description template, especially the sections describing the issue being fixed and how the changes were tested. This context is important for changes affecting application initialization.
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
src/App.jsx
Outdated
| useEffect(() => { | ||
| const storedSettings = getStoredEndpointSettings(); | ||
| if (!storedSettings) { | ||
| setEndpointSettings(getDefaultServer(), getDefaultAppId()); | ||
| } | ||
| }, []); |
There was a problem hiding this comment.
suggestion: Consider adding error handling around the storage operations
Storage operations can fail due to various reasons (quota exceeded, privacy mode, etc.). Wrap the operations in a try-catch block to gracefully handle potential errors.
| useEffect(() => { | |
| const storedSettings = getStoredEndpointSettings(); | |
| if (!storedSettings) { | |
| setEndpointSettings(getDefaultServer(), getDefaultAppId()); | |
| } | |
| }, []); | |
| useEffect(() => { | |
| try { | |
| const storedSettings = getStoredEndpointSettings(); | |
| if (!storedSettings) { | |
| setEndpointSettings(getDefaultServer(), getDefaultAppId()); | |
| } | |
| } catch (error) { | |
| console.error('Failed to access storage for endpoint settings:', error); | |
| // Ensure app can still function by using defaults without storing them | |
| const defaultServer = getDefaultServer(); | |
| const defaultAppId = getDefaultAppId(); | |
| try { | |
| setEndpointSettings(defaultServer, defaultAppId); | |
| } catch (storageError) { | |
| console.error('Failed to store default endpoint settings:', storageError); | |
| } | |
| } | |
| }, []); |
|
@sourcery-ai review |
🔗 Linked Issue
❓ Type of Change
📝 Description
🧪 How Has This Been Tested?
📷 Screenshots (if appropriate)
Summary by Sourcery
Bug Fixes: