fix: issue where event next was stale

[cpvalente]

Looks like we have a bug where, if we start the timer, and change a property of the next event, The eventNext object in the server state does not get updated

this is a one liner to fix it

[coderabbitai]

Walkthrough

The changes in this pull request involve modifications to the logic within the RuntimeService class and the runtimeState.ts file. Specifically, the condition for evaluating the affectedIds variable has been adjusted for stricter type checking, and a reset of the eventNext variable has been introduced to streamline event processing logic. These alterations aim to refine the handling of state and event transitions in the application.

Changes

File	Change Summary
apps/server/src/services/runtime-service/RuntimeService.ts	Modified the condition for safeOption to check for strict equality with undefined.
apps/server/src/stores/runtimeState.ts	Added a line to reset runtimeState.eventNext to null before processing the timedEvents array.

Possibly related PRs

• Fix current block #1170: Changes in runtimeState.ts are related as both PRs modify the same file and involve adjustments to state management logic.
• fix: stop integration if output disabled #1219: Focuses on the OscIntegration class and modifies conditional logic within service classes, potentially relating to overall state handling.

Suggested reviewers

• alex-Arc

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Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 177c9a3 and 0ab9f43.

Files selected for processing (2)

• apps/server/src/services/runtime-service/RuntimeService.ts (1 hunks)
• apps/server/src/stores/runtimeState.ts (1 hunks)

Additional comments not posted (3)

apps/server/src/stores/runtimeState.ts (2)

269-271: Approve: Reset eventNext to address stale data issue

This change effectively addresses the issue where the eventNext object was stale. By resetting runtimeState.eventNext to null before the loop, we ensure a clean slate when searching for the next event. This simple addition prevents any potential carry-over of stale data from previous operations.

The comment accurately describes the purpose of this change, which is to simplify the loop logic. This approach is straightforward and doesn't introduce any negative side effects, as the subsequent loop will populate eventNext if a suitable event is found.

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269-271: Consider checking for similar issues in other parts of the codebase

While this change effectively addresses the stale eventNext issue in the loadNext function, it might be worthwhile to review other parts of the codebase for similar patterns where stale data could persist. This proactive approach could prevent similar issues from occurring in other functions or components.

To help identify potential similar issues, you can run the following script:

This script will help identify other locations in the codebase where object properties are assigned, potentially without being reset first. Review the results to determine if any other functions could benefit from a similar reset approach.

Verification successful

Correcting the previous search script

The previous script used --type typescript, which is not recognized by rg. Please use --type ts instead to ensure the commands execute correctly.

---

To further investigate potential issues similar to the stale eventNext problem, we need to perform a more focused search. Let's generate some targeted search commands to identify patterns that might lead to stale data in event and timer-related properties.

These commands will help us focus on areas of the code where event and timer states are being managed, allowing us to identify any patterns that might lead to stale data issues similar to the original problem.

---

Based on the analysis of the search results, it appears that the original issue with the stale eventNext property has been addressed, and similar patterns for resetting state are applied consistently throughout the codebase. The clear() function and various other functions like loadNow(), loadNext(), and updateLoaded() show a consistent approach to resetting state properties to null or initial values when appropriate.

However, given the complexity of the state management in this codebase, particularly in functions like roll() and update(), there are some recommendations to further improve the code and reduce the risk of similar issues in the future:

1. Implement a more systematic state reset mechanism, possibly using a predefined schema or type-safe reset function. This could help ensure that all properties are consistently reset when needed.

2. Add more comprehensive unit tests to cover edge cases in complex functions like roll() and update(). This will help catch potential issues with state management earlier in the development process.

3. Consider enabling TypeScript's strict null checks if not already in use. This can help catch potential null reference issues at compile-time, reducing the risk of runtime errors.

4. Improve documentation around the expected lifecycle of state properties. This will make it clearer when and how they should be reset, helping developers maintain consistent state management practices.

While these suggestions could further improve the codebase, the current implementation appears to have addressed the original issue and applies similar safeguards consistently. Therefore, this review can be considered verified.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Search for patterns where object properties are assigned without being reset first

# Search for assignments to object properties that might benefit from resetting
rg --type typescript -g '!*.test.ts' -g '!*.spec.ts' '\w+\.\w+\s*=\s*' -C 5

# Search for loops that iterate over arrays and assign to object properties
rg --type typescript -g '!*.test.ts' -g '!*.spec.ts' 'for\s*\(.+\)\s*\{[\s\S]+?\.\w+\s*=\s*' -C 10

Length of output: 248

---

Script:

#!/bin/bash
# Description: Search for patterns where object properties are assigned without being reset first

# Search for assignments to object properties that might benefit from resetting
rg --type ts -g '!*.test.ts' -g '!*.spec.ts' '\w+\.\w+\s*=\s*' -C 5

# Search for loops that iterate over arrays and assign to object properties
rg --type ts -g '!*.test.ts' -g '!*.spec.ts' 'for\s*\(.+\)\s*\{[\s\S]+?\.\w+\s*=\s*' -C 10

Length of output: 264470

---

Script:

#!/bin/bash
# Search for assignments to event-related properties
rg --type ts -g '!*.test.ts' -g '!*.spec.ts' '\b(eventNext|eventNow|currentEvent)\s*=\s*' -C 5

# Search for timer-related property assignments
rg --type ts -g '!*.test.ts' -g '!*.spec.ts' '\b(timer\.\w+|playback|phase)\s*=\s*' -C 5

# Search for state updates in runtime-related files
rg --type ts -g '!*.test.ts' -g '!*.spec.ts' -g '**/runtime*.ts' '\.\w+\s*=\s*' -C 5

Length of output: 119870

apps/server/src/services/runtime-service/RuntimeService.ts (1)

235-235: Approve the fix for the safeOption condition.

This change correctly modifies the condition to check if affectedIds is actually undefined, rather than the string 'undefined'. This fixes a logical error and aligns with the PR objective of addressing the bug related to the eventNext object.

Consider using a more explicit check to handle potential edge cases:

-const safeOption = affectedIds === undefined;
+const safeOption = affectedIds === undefined || affectedIds === null || affectedIds.length === 0;

This would ensure that safeOption is true for undefined, null, and empty array cases, which might be more robust depending on how affectedIds is used throughout the codebase.

To ensure this change doesn't introduce any regressions, let's verify the usage of affectedIds throughout the codebase:

Verification successful

Approve the fix for the safeOption condition.

This change correctly modifies the condition to check if affectedIds is actually undefined, rather than the string 'undefined'. This fixes a logical error and aligns with the PR objective of addressing the bug related to the eventNext object.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for all occurrences of 'affectedIds' in TypeScript files
rg --type typescript 'affectedIds'

Length of output: 69

---

Script:

#!/bin/bash
# Search for all occurrences of 'affectedIds' in TypeScript (.ts) files
rg --type ts 'affectedIds'

Length of output: 1048

---

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