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Greptile Overview

Greptile Summary

Fixed logs redirection issue caused by empty stream objects by initializing stream state to null instead of empty objects and adding optional chaining throughout the codebase.

Key Changes:

• Changed initial state from {} to null for all stream types (logs, metrics, traces, enrichment_tables, index, metadata)
• Added optional chaining (?.) before array index access in getMultiStreams and setStreams functions to safely handle null values
• Fixed property name from areStreamsFetched to areAllStreamsFetched in test

Issue Found:

• Duplicate assignment in isStreamFetched function (lines 394-395) where line 395 overwrites line 394's value

Confidence Score: 4/5

• Safe to merge with one minor logic issue that should be addressed
• The PR correctly addresses the empty streams redirection bug by changing initialization from empty objects to null. The optional chaining additions are appropriate and safe. However, there's a duplicate assignment in the isStreamFetched function that should be fixed - line 394 is immediately overwritten by line 395, making it redundant code
• Pay attention to web/src/composables/useStreams.ts - duplicate assignment on lines 394-395

Important Files Changed

File Analysis

Sequence Diagram

sequenceDiagram
    participant App as Application
    participant Store as Vuex Store
    participant useStreams as useStreams Composable
    participant Cache as streamsCache

    Note over Store: BEFORE: Initial state = {}
    Note over Store: AFTER: Initial state = null

    App->>useStreams: isStreamFetched(streamType)
    useStreams->>Cache: Check streamsCache[streamType]?.value?.list
    
    alt Stream state is null (NEW behavior)
        Cache-->>useStreams: Returns undefined
        useStreams-->>App: Returns false (not fetched)
    else Stream state is {} (OLD behavior)
        Cache-->>useStreams: {}.list = undefined
        useStreams-->>App: Returns false (not fetched)
    end

    App->>useStreams: getStream(name, type, schema)
    useStreams->>useStreams: Check if stream fetched
    useStreams->>Store: Access streamsIndexMapping[streamType][streamName]
    useStreams->>Cache: streamsCache[streamType].value?.list?.[index]
    
    Note over useStreams,Cache: Optional chaining (?.) prevents<br/>errors when value is null
    
    Cache-->>useStreams: Return stream or {}
    useStreams-->>App: Stream data