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Use common _decodeAndPrepareMessages for processing of STATE and STATE_SYNC messages #1931

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VeskeR
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@VeskeR VeskeR commented Nov 29, 2024

This implements the proposal from one of the earlier PRs: #1897 (comment)

Summary by CodeRabbit

  • New Features

    • Enhanced message processing capabilities for state management, now supporting StateMessage alongside existing message types.
  • Bug Fixes

    • Consolidated logic for handling STATE and STATE_SYNC actions, improving maintainability and reducing redundancy.

…`STATE_SYNC` messages

This implements the proposal from one of the earlier PRs [1]

[1] #1897 (comment)
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coderabbitai bot commented Nov 29, 2024

Walkthrough

The pull request introduces modifications to the RealtimeChannel class, specifically in the src/common/lib/client/realtimechannel.ts file. A new type, StateMessage, is added to enhance the _decodeAndPrepareMessages method, allowing it to process multiple message types, including StateMessage, Message, and PresenceMessage. The handling of STATE and STATE_SYNC actions has been consolidated into a single case to simplify control flow. The method's signature has been updated to reflect these changes, improving the overall message processing capabilities.

Changes

File Path Change Summary
src/common/lib/client/realtimechannel.ts - Added StateMessage type from plugins/liveobjects.
- Updated _decodeAndPrepareMessages method signature to include StateMessage.
- Consolidated handling of STATE and STATE_SYNC actions into a single case.

Possibly related PRs

Suggested reviewers

  • mschristensen
  • owenpearson
  • ttypic

🐇 In the channel where messages flow,
A new type joins the show!
StateMessage now takes its place,
Simplifying the message race.
With actions merged, oh what a sight,
Realtime's dance is smooth and bright! 🌟


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Actionable comments posted: 1

🧹 Outside diff range and nitpick comments (1)
src/common/lib/client/realtimechannel.ts (1)

Line range hint 745-755: Handle 'unrecoverableError' flag appropriately

In the return statement of _decodeAndPrepareMessages, the method returns { unrecoverableError: false } by default. Ensure that any caller of this method checks the unrecoverableError flag and handles it correctly to prevent unintended behavior.

Consider adding comments or documentation to clarify the expected handling of the unrecoverableError flag.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 0575e5e and 6876339.

📒 Files selected for processing (1)
  • src/common/lib/client/realtimechannel.ts (3 hunks)
🔇 Additional comments (4)
src/common/lib/client/realtimechannel.ts (4)

610-612: Handle the case when '_liveObjects' is undefined

The check for !this._liveObjects results in an early return. Ensure that this condition is expected and that skipping further processing won't lead to missed essential operations.

Confirm that _liveObjects is properly initialized when the LiveObjects plugin is available.


620-625: Ensure correct handling of 'STATE' and 'STATE_SYNC' actions

After processing state messages, the code distinguishes between STATE and STATE_SYNC actions to call the appropriate handler. Verify that these handlers (handleStateMessages and handleStateSyncMessages) are correctly implemented and that message.channelSerial is available when needed.

Check the implementations of the handlers and ensure channelSerial is properly utilized.


33-33: Verify the existence and correct export of 'LiveObjects' and 'StateMessage'

The import statement introduces LiveObjects and StateMessage from 'plugins/liveobjects'. Ensure that the 'plugins/liveobjects' module exists and that these types are correctly exported to prevent import errors.

Run the following script to check the module and exports:

✅ Verification successful

Both LiveObjects and StateMessage types are correctly exported from the module

The verification confirms that:

  • The module exists at src/plugins/liveobjects/liveobjects.ts
  • Both LiveObjects and StateMessage are properly exported:
    • LiveObjects is defined as a class in src/plugins/liveobjects/liveobjects.ts
    • StateMessage is defined as a class in src/plugins/liveobjects/statemessage.ts
    • Both are explicitly exported in src/plugins/liveobjects/index.ts
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that 'LiveObjects' and 'StateMessage' are exported from 'plugins/liveobjects'

# Check if 'liveobjects.ts' file exists
fd 'liveobjects.ts' --exec echo "Found: {}"

# Search for 'LiveObjects' and 'StateMessage' exports
rg 'export.*LiveObjects' -A 2
rg 'export.*StateMessage' -A 2

Length of output: 1623


Line range hint 735-740: Update all calls to '_decodeAndPrepareMessages' with the new generic type

The method _decodeAndPrepareMessages now includes StateMessage in its generic type parameter <T>. Ensure that all invocations of this method are updated to reflect the new type definition to prevent type mismatches.

Run the following script to locate all usages:

src/common/lib/client/realtimechannel.ts Show resolved Hide resolved
@VeskeR VeskeR requested a review from mschristensen November 29, 2024 08:41
Base automatically changed from liveobjects/2024-11-29-merge-main to integration/liveobjects December 4, 2024 03:40
@VeskeR VeskeR merged commit f08222d into integration/liveobjects Dec 4, 2024
8 of 14 checks passed
@VeskeR VeskeR deleted the liveobjects/refactor-state-message-processing branch December 4, 2024 03:41
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2 participants