Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[ECO-5001] Some spec alignment #156

Merged
merged 14 commits into from
Nov 28, 2024
Merged

Conversation

lawrence-forooghian
Copy link
Collaborator

@lawrence-forooghian lawrence-forooghian commented Nov 27, 2024

Part of #66. This brings us up to date with the latest version of some spec points, and implements some newly-added spec points. See commit messages for details.

Summary by CodeRabbit

  • New Features
    • Introduced a new DiscontinuityEvent struct for better handling of discontinuity events.
  • Improvements
    • Updated various subscription methods to return Subscription<DiscontinuityEvent> instead of Subscription<ARTErrorInfo?>, enhancing event specificity.
    • Enhanced error handling and logging across multiple classes to improve robustness and clarity in subscription management.
  • Tests
    • Modified test cases to align with the new event handling structure, ensuring accurate representation and comparison of discontinuity events.

This spec point was removed because it was redundant.
This has been clarified in the spec.
Mistake in b6c3ddb.
It was a redundant spec point that was implied by CHA-RL4b7.
Mistake in 775ec51.
This is what you’ll now receive when you subscribe to a room feature’s
discontinuities. I should have done this in 30cfd30, when we started
allowing a discontinuity’s error to be nil; it’s not nice to work with
an AsyncSequence that emits optional values, because it makes the return
value of operators like `first` ambiguous; did you reach the end of the
sequence or did you get a discontinuity without an associated error?
This is implied by the latest version of CHA-RL4a3, which states that
you must not overwrite an existing pending discontinuity (will implement
and test this behaviour in the next commit).
This requirement was added to CHA-RL4a3 subsequent to my implementing
the spec point.
Have used the modified “has been attached” criterion from 8b5aa47, for
consistency.
@lawrence-forooghian lawrence-forooghian changed the title Some spec alignment [ECO-5001] Some spec alignment Nov 27, 2024
Copy link

coderabbitai bot commented Nov 27, 2024

Walkthrough

The pull request introduces significant changes across multiple classes in the Ably Chat SDK, primarily focusing on the subscribeToDiscontinuities method. The return type of this method has been updated from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent> in various actors and classes, reflecting a shift towards handling specific discontinuity events. Additionally, several classes have enhanced error handling and logging capabilities, improving the robustness of subscription management and presence operations. A new struct, DiscontinuityEvent, has also been introduced to encapsulate event-related data.

Changes

File Path Change Summary
Example/AblyChatExample/Mocks/MockClients.swift Updated return type of subscribeToDiscontinuities in multiple actors from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent>.
Sources/AblyChat/DefaultMessages.swift Changed return type of subscribeToDiscontinuities to Subscription<DiscontinuityEvent>, updated comments, and refined handleAttach and error handling.
Sources/AblyChat/DefaultOccupancy.swift Modified subscribeToDiscontinuities return type to Subscription<DiscontinuityEvent> and enhanced error handling in subscribe(bufferingPolicy:).
Sources/AblyChat/DefaultPresence.swift Updated subscribeToDiscontinuities return type to Subscription<DiscontinuityEvent> and improved error handling across several methods.
Sources/AblyChat/DefaultRoomLifecycleContributor.swift Changed discontinuitySubscriptions type to Subscription<DiscontinuityEvent> and modified related methods to reflect this change.
Sources/AblyChat/DefaultRoomReactions.swift Updated subscribeToDiscontinuities return type to Subscription<DiscontinuityEvent>, added error handling, and marked class with @MainActor.
Sources/AblyChat/DefaultTyping.swift Changed subscribeToDiscontinuities return type to Subscription<DiscontinuityEvent> and enhanced error handling and logging in presence operations.
Sources/AblyChat/EmitsDiscontinuities.swift Introduced new struct DiscontinuityEvent and updated subscribeToDiscontinuities in the protocol to return Subscription<DiscontinuityEvent>.
Sources/AblyChat/Errors.swift Updated ErrorCode and ChatError enums to reflect new error categorization and improved messaging.
Sources/AblyChat/RoomFeature.swift Changed subscribeToDiscontinuities return type to Subscription<DiscontinuityEvent> and clarified error handling in waitToBeAbleToPerformPresenceOperations.
Sources/AblyChat/RoomLifecycleManager.swift Modified protocols and internal state management to utilize DiscontinuityEvent, streamlining event handling.
Tests/AblyChatTests/DefaultMessagesTests.swift Updated tests to reflect changes in discontinuity event handling and comparison methods.
Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift Adjusted tests for pending discontinuity events to align with new structure and improved clarity in test logic.
Tests/AblyChatTests/DefaultRoomReactionsTests.swift Updated tests to reflect changes in discontinuity event handling and comparison methods.
Tests/AblyChatTests/Mocks/MockFeatureChannel.swift Changed subscription and event handling types to DiscontinuityEvent.
Tests/AblyChatTests/Mocks/MockRoomLifecycleContributor.swift Updated property and method types to DiscontinuityEvent for better alignment with new event handling logic.

Possibly related PRs

Suggested reviewers

  • umair-ably
  • maratal

🐇 In the land of code where bunnies play,
Discontinuities hop in a brand new way!
With events so clear, and errors in sight,
Our chat's now robust, oh what a delight!
So let’s celebrate with a joyful cheer,
For changes that make our coding so dear! 🐰✨


Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media?

❤️ Share
🪧 Tips

Chat

There are 3 ways to chat with CodeRabbit:

  • Review comments: Directly reply to a review comment made by CodeRabbit. Example:
    • I pushed a fix in commit <commit_id>, please review it.
    • Generate unit testing code for this file.
    • Open a follow-up GitHub issue for this discussion.
  • Files and specific lines of code (under the "Files changed" tab): Tag @coderabbitai in a new review comment at the desired location with your query. Examples:
    • @coderabbitai generate unit testing code for this file.
    • @coderabbitai modularize this function.
  • PR comments: Tag @coderabbitai in a new PR comment to ask questions about the PR branch. For the best results, please provide a very specific query, as very limited context is provided in this mode. Examples:
    • @coderabbitai gather interesting stats about this repository and render them as a table. Additionally, render a pie chart showing the language distribution in the codebase.
    • @coderabbitai read src/utils.ts and generate unit testing code.
    • @coderabbitai read the files in the src/scheduler package and generate a class diagram using mermaid and a README in the markdown format.
    • @coderabbitai help me debug CodeRabbit configuration file.

Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments.

CodeRabbit Commands (Invoked using PR comments)

  • @coderabbitai pause to pause the reviews on a PR.
  • @coderabbitai resume to resume the paused reviews.
  • @coderabbitai review to trigger an incremental review. This is useful when automatic reviews are disabled for the repository.
  • @coderabbitai full review to do a full review from scratch and review all the files again.
  • @coderabbitai summary to regenerate the summary of the PR.
  • @coderabbitai resolve resolve all the CodeRabbit review comments.
  • @coderabbitai configuration to show the current CodeRabbit configuration for the repository.
  • @coderabbitai help to get help.

Other keywords and placeholders

  • Add @coderabbitai ignore anywhere in the PR description to prevent this PR from being reviewed.
  • Add @coderabbitai summary to generate the high-level summary at a specific location in the PR description.
  • Add @coderabbitai anywhere in the PR title to generate the title automatically.

CodeRabbit Configuration File (.coderabbit.yaml)

  • You can programmatically configure CodeRabbit by adding a .coderabbit.yaml file to the root of your repository.
  • Please see the configuration documentation for more information.
  • If your editor has YAML language server enabled, you can add the path at the top of this file to enable auto-completion and validation: # yaml-language-server: $schema=https://coderabbit.ai/integrations/schema.v2.json

Documentation and Community

  • Visit our Documentation for detailed information on how to use CodeRabbit.
  • Join our Discord Community to get help, request features, and share feedback.
  • Follow us on X/Twitter for updates and announcements.

Copy link

@coderabbitai coderabbitai bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Actionable comments posted: 3

🧹 Outside diff range and nitpick comments (12)
Sources/AblyChat/EmitsDiscontinuities.swift (1)

3-10: Add comprehensive documentation for the struct.

The implementation looks good with appropriate protocol conformance and access levels. Consider enhancing the documentation to include:

  • Purpose of the struct
  • Usage examples
  • When errors might be present/nil

Add documentation like this:

+/// Represents a discontinuity event in the Ably Chat system.
+///
+/// A discontinuity event occurs when there's an interruption or change in the normal flow of operations,
+/// such as connection issues or state transitions.
+///
+/// Example usage:
+/// ```swift
+/// let event = DiscontinuityEvent(error: someError)
+/// // Handle the discontinuity...
+/// ```
 public struct DiscontinuityEvent: Sendable, Equatable {
Tests/AblyChatTests/Mocks/MockFeatureChannel.swift (1)

Line range hint 24-28: LGTM: Method properly handles the new DiscontinuityEvent type

The implementation correctly emits the discontinuity event to all subscriptions. Consider adding a brief documentation comment explaining the purpose of this method in the test context.

Add documentation:

+/// Emits a discontinuity event to all registered subscriptions.
+/// Used in tests to simulate discontinuity scenarios.
 func emitDiscontinuity(_ discontinuity: DiscontinuityEvent) {
Tests/AblyChatTests/DefaultRoomReactionsTests.swift (1)

74-80: LGTM! Test correctly verifies discontinuity event propagation.

The test properly validates that discontinuity events are propagated through the DefaultRoomReactions instance. The change from ARTErrorInfo to DiscontinuityEvent aligns with the broader changes in the codebase, and the switch to value equality makes sense for comparing event objects.

Consider adding these improvements to make the test more robust:

 let featureChannelDiscontinuity = DiscontinuityEvent(error: ARTErrorInfo.createUnknownError() /* arbitrary */ )
 let messagesDiscontinuitySubscription = await roomReactions.subscribeToDiscontinuities()
 await featureChannel.emitDiscontinuity(featureChannelDiscontinuity)

 // Then: The DefaultRoomReactions instance emits this discontinuity through `subscribeToDiscontinuities`
-let messagesDiscontinuity = try #require(await messagesDiscontinuitySubscription.first { _ in true })
+// Add timeout to prevent test from hanging
+let messagesDiscontinuity = try #require(await messagesDiscontinuitySubscription.first { _ in true }.timeout(.seconds(5)))
 #expect(messagesDiscontinuity == featureChannelDiscontinuity)
+
+// Verify no additional events are emitted
+let noMoreEvents = await messagesDiscontinuitySubscription.first { _ in true }.timeout(.milliseconds(100))
+#expect(noMoreEvents == nil)
Tests/AblyChatTests/DefaultMessagesTests.swift (1)

89-89: Consider enhancing the test coverage.

While the basic functionality is well-tested, consider adding more test cases to verify:

  1. Multiple discontinuity events in sequence
  2. Specific error scenarios rather than using an arbitrary unknown error
  3. Subscription behavior when no discontinuities occur

Example enhancement:

@Test
func subscribeToDiscontinuities() async throws {
    // ... existing setup ...

    // Test multiple specific discontinuity events
+   let specificError = ARTErrorInfo.create(withCode: 90001, status: 500, message: "Channel disconnected")
+   let secondDiscontinuity = DiscontinuityEvent(error: specificError)
+   await featureChannel.emitDiscontinuity(secondDiscontinuity)
+   let secondEvent = try #require(await messagesDiscontinuitySubscription.first { $0.error?.code == 90001 })
+   #expect(secondEvent == secondDiscontinuity)

    // Test no discontinuities scenario
+   let emptySubscription = await messages.subscribeToDiscontinuities()
+   let hasEvents = await emptySubscription.contains { _ in true }
+   #expect(!hasEvents)
}
Example/AblyChatExample/Mocks/MockClients.swift (2)

386-388: Consider implementing a basic mock subscription

While the current unimplemented subscribeToDiscontinuities in MockOccupancy follows the established pattern, this actor already has a working implementation of createSubscription() that could be leveraged. Consider implementing a basic mock subscription to improve testing capabilities.

Here's a suggested implementation:

-    func subscribeToDiscontinuities() -> Subscription<DiscontinuityEvent> {
-        fatalError("Not yet implemented")
-    }
+    func subscribeToDiscontinuities() -> Subscription<DiscontinuityEvent> {
+        let subscription = MockSubscription<DiscontinuityEvent>(randomElement: {
+            DiscontinuityEvent(reason: .connectionDisconnected)
+        }, interval: 10)
+        return .init(mockAsyncSequence: subscription)
+    }

Protocol conformance issue detected in mock implementations

The mock implementations (MockRoomReactions, MockTyping, MockPresence, MockOccupancy) are not correctly conforming to the EmitsDiscontinuities protocol. The protocol requires an async function:

func subscribeToDiscontinuities() async -> Subscription<DiscontinuityEvent>

But the mock implementations are using a non-async signature:

func subscribeToDiscontinuities() -> Subscription<DiscontinuityEvent>

The async keyword is missing in all mock implementations, which makes them incompatible with the protocol requirements.

🔗 Analysis chain

Line range hint 147-388: Verify protocol conformance across implementations

The return type change from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent> appears consistent across all implementations. Let's verify this change aligns with the protocol requirements.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for protocol definitions that might contain subscribeToDiscontinuities
rg -l "protocol.*\{" | xargs rg "subscribeToDiscontinuities.*->.*Subscription"

Length of output: 330


Script:

#!/bin/bash
# Let's check the EmitsDiscontinuities protocol definition and its usage
rg -A 5 "protocol EmitsDiscontinuities"

# Also check for any other implementations of subscribeToDiscontinuities
ast-grep --pattern 'func subscribeToDiscontinuities() $$$'

Length of output: 355

Sources/AblyChat/DefaultMessages.swift (1)

Line range hint 1-270: Excellent documentation and error handling.

The code demonstrates high quality in several areas:

  • Comprehensive spec references in comments
  • Well-tracked TODOs with GitHub issues
  • Thorough error handling with detailed logging
  • Proper use of actor-based concurrency

Consider adding a class-level documentation comment explaining the role of DefaultMessages in the SDK architecture and its relationship with EmitsDiscontinuities.

Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift (1)

Line range hint 1357-1625: Consider extracting setup logic to improve test readability.

The contributor event handling tests provide excellent coverage and are well-structured with clear Given/When/Then sections. However, some test methods are quite long and contain repeated setup logic. Consider extracting common setup code into helper methods, particularly for:

  • Contributor state change creation
  • Manager initialization with specific states
  • Assertion verification

Example refactoring:

private func createContributorStateChange(
    current: ARTRealtimeChannelState,
    previous: ARTRealtimeChannelState,
    event: ARTChannelEvent,
    reason: ARTErrorInfo? = nil,
    resumed: Bool = false
) -> ARTChannelStateChange {
    ARTChannelStateChange(
        current: current,
        previous: previous,
        event: event,
        reason: reason,
        resumed: resumed
    )
}
Sources/AblyChat/RoomLifecycleManager.swift (4)

114-114: Update initializers to include pendingDiscontinuityEvents parameter

The internal init method now includes a pendingDiscontinuityEvents parameter. Ensure that all initializations provide appropriate values for this parameter, especially in test cases where this initializer is used.


399-400: Test utility method for accessing pendingDiscontinuityEvent

The addition of testsOnly_pendingDiscontinuityEvent(for:) provides a way to access pendingDiscontinuityEvent during testing. Ensure this method remains confined to testing environments and does not affect production code.

Consider adding documentation to clarify that this method is intended for testing purposes only.


867-869: Emitting pending discontinuity events to contributors

The emitPendingDiscontinuityEvents method iterates over contributors and emits any pending discontinuity events. Verify that this asynchronous operation properly handles any potential concurrency issues.

Consider adding error handling for the await contributor.emitDiscontinuity(pendingDiscontinuityEvent) call to catch and log any exceptions that might occur during the emission.


1059-1059: Maintain consistency in status transition cases

The inclusion of multiple statuses in a single line improves readability but may deviate from standard formatting practices.

Consider formatting each case on its own line for better clarity:

case .attached,
     .attachingDueToAttachOperation,
     .attachingDueToRetryOperation,
     .attachingDueToContributorStateChange,
     .detaching,
     .suspendedAwaitingStartOfRetryOperation,
     .suspended,
     .failed:
    break
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 5923c21 and b41cadc.

📒 Files selected for processing (16)
  • Example/AblyChatExample/Mocks/MockClients.swift (5 hunks)
  • Sources/AblyChat/DefaultMessages.swift (1 hunks)
  • Sources/AblyChat/DefaultOccupancy.swift (1 hunks)
  • Sources/AblyChat/DefaultPresence.swift (1 hunks)
  • Sources/AblyChat/DefaultRoomLifecycleContributor.swift (2 hunks)
  • Sources/AblyChat/DefaultRoomReactions.swift (1 hunks)
  • Sources/AblyChat/DefaultTyping.swift (1 hunks)
  • Sources/AblyChat/EmitsDiscontinuities.swift (1 hunks)
  • Sources/AblyChat/Errors.swift (1 hunks)
  • Sources/AblyChat/RoomFeature.swift (1 hunks)
  • Sources/AblyChat/RoomLifecycleManager.swift (14 hunks)
  • Tests/AblyChatTests/DefaultMessagesTests.swift (1 hunks)
  • Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift (18 hunks)
  • Tests/AblyChatTests/DefaultRoomReactionsTests.swift (1 hunks)
  • Tests/AblyChatTests/Mocks/MockFeatureChannel.swift (2 hunks)
  • Tests/AblyChatTests/Mocks/MockRoomLifecycleContributor.swift (1 hunks)
🧰 Additional context used
📓 Learnings (6)
Example/AblyChatExample/Mocks/MockClients.swift (1)
Learnt from: maratal
PR: ably-labs/ably-chat-swift#34
File: Example/AblyChatExample/Mocks/MockClients.swift:367-369
Timestamp: 2024-11-12T15:07:31.865Z
Learning: In mock implementations, it's acceptable to leave `subscribeToDiscontinuities` unimplemented during early development.
Sources/AblyChat/DefaultRoomReactions.swift (1)
Learnt from: umair-ably
PR: ably-labs/ably-chat-swift#89
File: Sources/AblyChat/DefaultRoomReactions.swift:73-75
Timestamp: 2024-11-12T15:07:31.866Z
Learning: In the 'ably-chat-swift' repository (Swift project), always ignore giving feedback on usage of `fatalError("Not implemented")` in the code, including for methods like `subscribeToDiscontinuities()`.
Sources/AblyChat/RoomLifecycleManager.swift (1)
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#54
File: Sources/AblyChat/RoomLifecycleManager.swift:0-0
Timestamp: 2024-11-12T15:07:31.866Z
Learning: In `RoomLifecycleManager`, handling of unexpected contributor states after attach failure will be addressed in issue #49.
Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift (6)
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#54
File: Tests/AblyChatTests/RoomLifecycleManagerTests.swift:627-631
Timestamp: 2024-11-12T15:07:39.465Z
Learning: The closure `detachImpl` in `RoomLifecycleManagerTests.swift` functions as intended without external state variables to track invocation count.
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#54
File: Tests/AblyChatTests/RoomLifecycleManagerTests.swift:335-335
Timestamp: 2024-11-12T15:07:31.865Z
Learning: In Swift Testing, test method names do not need to start with `test`.
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#67
File: Tests/AblyChatTests/RoomLifecycleManagerTests.swift:941-941
Timestamp: 2024-11-12T15:07:31.866Z
Learning: When a TODO comment references an existing GitHub issue, it's acceptable to leave it in the code without requesting its removal.
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#118
File: Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift:988-988
Timestamp: 2024-11-18T19:45:48.787Z
Learning: In Swift, not awaiting an `async let` variable does not lead to resource leaks.
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#54
File: Tests/AblyChatTests/RoomLifecycleManagerTests.swift:499-504
Timestamp: 2024-11-12T15:07:31.865Z
Learning: In test closures, parameters like `callCount` may be used to track invocation counts correctly across invocations.
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#67
File: Tests/AblyChatTests/RoomLifecycleManagerTests.swift:836-836
Timestamp: 2024-11-12T15:07:31.866Z
Learning: Before suggesting the removal of TODO comments, check if they reference existing GitHub issues that track the pending work.
Tests/AblyChatTests/Mocks/MockFeatureChannel.swift (1)
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#115
File: Tests/AblyChatTests/Mocks/MockFeatureChannel.swift:30-30
Timestamp: 2024-11-18T16:02:11.878Z
Learning: Swift supports typed `throws` syntax, allowing function declarations to specify the type of errors they can throw using the syntax `throws(ErrorType)`.
Tests/AblyChatTests/Mocks/MockRoomLifecycleContributor.swift (1)
Learnt from: lawrence-forooghian
PR: ably-labs/ably-chat-swift#67
File: Tests/AblyChatTests/Mocks/MockRoomLifecycleContributorChannel.swift:98-102
Timestamp: 2024-11-12T15:07:31.865Z
Learning: The cleanup of old subscriptions in `MockRoomLifecycleContributorChannel` is acknowledged with a TODO comment and is tracked in issue #36.
🔇 Additional comments (36)
Tests/AblyChatTests/Mocks/MockRoomLifecycleContributor.swift (2)

8-8: LGTM: Property type updated to align with new spec

The change from [ARTErrorInfo?] to [DiscontinuityEvent] correctly aligns with the broader refactoring of discontinuity handling across the codebase.


15-16: LGTM: Method updated to handle DiscontinuityEvent

The implementation correctly records discontinuity events for test verification purposes.

Let's verify that this change aligns with the protocol definition:

✅ Verification successful

LGTM: Method signature matches protocol definition

The implementation in MockRoomLifecycleContributor correctly matches the RoomLifecycleContributor protocol definition, which requires an async method emitDiscontinuity(_ discontinuity: DiscontinuityEvent). The mock implementation appropriately records the events for test verification.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the RoomLifecycleContributor protocol definition matches this implementation

# Search for the protocol definition
ast-grep --pattern 'protocol RoomLifecycleContributor {
  $$$
  func emitDiscontinuity($_) async
  $$$
}'

Length of output: 107


Script:

#!/bin/bash
# Let's try a broader search for the protocol definition
rg -l "protocol RoomLifecycleContributor"

Length of output: 87


Script:

#!/bin/bash
# Search for any file containing emitDiscontinuity method
rg "func emitDiscontinuity"

Length of output: 523


Script:

#!/bin/bash
# Search for files containing DiscontinuityEvent to understand the type
rg "DiscontinuityEvent"

Length of output: 12135


Script:

#!/bin/bash
# Let's check the protocol definition in RoomLifecycleManager.swift
rg -A 5 "protocol RoomLifecycleContributor" Sources/AblyChat/RoomLifecycleManager.swift

Length of output: 690


Script:

#!/bin/bash
# Let's get more context from the RoomLifecycleContributor protocol
rg -A 15 "protocol RoomLifecycleContributor" Sources/AblyChat/RoomLifecycleManager.swift

Length of output: 1785

Tests/AblyChatTests/Mocks/MockFeatureChannel.swift (2)

7-7: LGTM: Property type update aligns with system-wide changes

The updated type for discontinuitySubscriptions properly reflects the transition from ARTErrorInfo? to DiscontinuityEvent as mentioned in the PR summary.


18-22: LGTM: Method signature and implementation properly updated

The implementation correctly creates and manages subscriptions with the new DiscontinuityEvent type.

Let's verify that all consumers of this mock have been updated to handle the new type:

✅ Verification successful

Let me search for actual usage of subscribeToDiscontinuities to verify the consumers are properly handling the new type.


Method signature and implementation are correctly used across the codebase

The verification shows that all consumers (DefaultRoomReactionsTests and DefaultMessagesTests) are properly handling the DiscontinuityEvent type and correctly using the subscribeToDiscontinuities method. The tests demonstrate proper type handling, subscription management, and event verification.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for test files using MockFeatureChannel to ensure they handle DiscontinuityEvent
rg -t swift "MockFeatureChannel" Tests/ -C 3

Length of output: 6942


Script:

#!/bin/bash
# Search for usage of subscribeToDiscontinuities to verify type handling
rg -t swift "subscribeToDiscontinuities" Tests/ -C 5

Length of output: 5684

Sources/AblyChat/DefaultRoomLifecycleContributor.swift (2)

6-6: LGTM: Type update aligns with spec changes

The update from ARTErrorInfo? to DiscontinuityEvent is consistent with the spec alignment objectives.


15-18: LGTM: Method signature and implementation correctly updated

The changes to emitDiscontinuity properly handle the new DiscontinuityEvent type.

Sources/AblyChat/DefaultOccupancy.swift (1)

53-55: LGTM! Implementation aligns with spec point CHA-O5.

The change correctly updates the return type to Subscription<DiscontinuityEvent> and properly delegates to the feature channel.

Let's verify the implementation in featureChannel:

✅ Verification successful

Implementation verified and correctly follows protocol requirements

The verification shows that:

  1. FeatureChannel is a protocol that inherits from EmitsDiscontinuities
  2. DefaultFeatureChannel is the concrete implementation used in production
  3. Multiple features (Messages, Presence, Typing, etc.) consistently delegate to their featureChannel.subscribeToDiscontinuities()
  4. The return type Subscription<DiscontinuityEvent> is consistent across all implementations

The implementation in DefaultOccupancy correctly follows the established pattern and protocol requirements.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of subscribeToDiscontinuities in FeatureChannel
# Expected: Find the implementation to confirm proper delegation

# Search for FeatureChannel class and its subscribeToDiscontinuities implementation
ast-grep --pattern 'class FeatureChannel {
  $$$
  func subscribeToDiscontinuities($$$) {
    $$$
  }
  $$$
}'

Length of output: 112


Script:

#!/bin/bash
# Let's try a broader search to find the FeatureChannel implementation
# First, find files that might contain FeatureChannel
fd "FeatureChannel" --type f

# Then use ripgrep to find the implementation with context
rg "class FeatureChannel" -A 10

# Also search for the method specifically
rg "func subscribeToDiscontinuities" -A 5

Length of output: 8248


Script:

#!/bin/bash
# Let's find the actual FeatureChannel protocol or class definition
rg "protocol FeatureChannel|class FeatureChannel" -A 15

# Also search for any files containing FeatureChannel in their content
rg "FeatureChannel" --type swift

Length of output: 5863

Tests/AblyChatTests/DefaultMessagesTests.swift (1)

83-85: LGTM! The discontinuity event setup and emission is well-structured.

The code correctly tests the new DiscontinuityEvent type and follows good testing practices with clear setup and execution steps.

Sources/AblyChat/RoomFeature.swift (2)

61-63: LGTM: Return type change improves type safety

The change from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent> makes the return type more specific and meaningful, improving type safety and clarity.


Line range hint 65-67: LGTM: Explicit error type improves error handling clarity

The explicit error type throws(ARTErrorInfo) clearly communicates the error handling contract to API consumers, aligning with the documented error cases in the function's documentation.

Sources/AblyChat/DefaultRoomReactions.swift (2)

83-85: LGTM! Clean implementation following specification point CHA-ER5.

The method correctly delegates to the feature channel's implementation, maintaining a clean separation of concerns.


Line range hint 1-4: Verify the status of task isolation issue #83.

The TODO comment indicates that @MainActor is a temporary fix for task isolation. Let's check the status of this issue.

✅ Verification successful

Task isolation issue #83 is still open and requires further investigation.

The issue is actively tracking the need for @MainActor annotation. According to the issue description:

  • This was introduced to fix an "Incorrect actor executor assumption" error that appeared with Swift 6
  • It's considered a temporary solution pending further investigation
  • The team plans to revisit this once there's more functionality implemented and better understanding of Swift Concurrency

Since this is a known limitation being tracked, and the current solution is working as intended, no immediate action is required.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check the status of issue #83 and related discussions
gh issue view 83 --json title,state,body,comments

Length of output: 1176

Sources/AblyChat/Errors.swift (2)

Line range hint 1-248: Track TODOs in GitHub issues.

The implementation follows Swift best practices for error handling. I notice there are TODOs referencing GitHub issues #32. This is good practice, but let's verify these are being tracked.

Let's check the referenced issue:

✅ Verification successful

TODOs are properly tracked in issue #32

The TODOs in the error handling implementation are being tracked in issue #32, which is currently open and actively maintained. The issue specifically addresses:

  • Custom error domain and error codes implementation
  • The copied code in init(errorCode:)
  • The broader discussion about error handling approach
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check if issue #32 exists and is open
# Expected: Find an open issue tracking these TODOs

gh issue view 32 --json title,state,body

Length of output: 1316


41-59: LGTM! Verify spec alignment for status codes.

The status code mappings have been updated to align with the "Chat-specific Error Codes" section of the spec. Moving detachment failures to 500 status codes correctly indicates these as server-side errors.

Let's verify the spec alignment:

Example/AblyChatExample/Mocks/MockClients.swift (4)

147-149: LGTM: Implementation follows mock pattern

The unimplemented subscribeToDiscontinuities method in MockMessages follows the established pattern for mock implementations. This aligns with the learning from PR #34 where it's acceptable to leave this method unimplemented during early development.


198-200: LGTM: Implementation follows mock pattern

The unimplemented subscribeToDiscontinuities method in MockRoomReactions maintains consistency with other mock implementations.


247-249: LGTM: Implementation follows mock pattern

The unimplemented subscribeToDiscontinuities method in MockTyping follows the same pattern as other mock implementations.


351-353: LGTM: Implementation follows mock pattern

The unimplemented subscribeToDiscontinuities method in MockPresence maintains consistency with other mock implementations.

Sources/AblyChat/DefaultPresence.swift (2)

197-199: LGTM: Return type change aligns with spec

The change from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent> aligns with the spec update and provides more specific event handling. The implementation correctly delegates to the feature channel.

Let's verify consistent implementation across related files:

✅ Verification successful

Return type change is consistently implemented across the codebase

The search results confirm that the change from ARTErrorInfo? to DiscontinuityEvent is consistently implemented across all related files:

  • The EmitsDiscontinuities protocol defines the interface with Subscription<DiscontinuityEvent>
  • All implementations (DefaultPresence, DefaultTyping, DefaultOccupancy, DefaultMessages, DefaultRoomReactions) correctly return Subscription<DiscontinuityEvent>
  • The mock implementations and tests are aligned with this return type
  • The change is part of a broader spec-compliant implementation where discontinuity events are properly managed through the RoomLifecycleManager
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify consistent implementation of subscribeToDiscontinuities
# across all related files

# Search for all implementations of subscribeToDiscontinuities
ast-grep --pattern 'func subscribeToDiscontinuities() async -> Subscription<$_>'

# Search for any remaining references to ARTErrorInfo in discontinuity contexts
rg "Subscription<ARTErrorInfo" 

Length of output: 115


Script:

#!/bin/bash
# Let's try a broader search to find all references to subscribeToDiscontinuities
rg "subscribeToDiscontinuities" -A 2 -B 2

# Also search for any protocol definitions or implementations related to discontinuities
ast-grep --pattern 'protocol $_Presence {
  $$$
}'

# And search for DiscontinuityEvent usage
rg "DiscontinuityEvent" -A 2 -B 2

Length of output: 49374


196-199: Verify documentation reflects the new return type

The implementation looks good, but since this is a spec change (CHA-PR8), please ensure that any relevant documentation (README, API docs, etc.) has been updated to reflect the new DiscontinuityEvent return type.

Let's check for documentation that might need updates:

✅ Verification successful

Let me search for documentation related to discontinuity events and subscriptions.


Based on the search results, I can now generate the final response:

Documentation appears to be consistent with the new return type

The implementation of subscribeToDiscontinuities() returning Subscription<DiscontinuityEvent> is well-documented in the codebase. The DiscontinuityEvent type and its usage are properly documented in the source files, particularly in EmitsDiscontinuities.swift. No documentation updates are needed as this appears to be an internal API change that's consistently implemented across the codebase.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Look for documentation files that might need updates

# Search for documentation files
fd -e md -e txt

# Search for references to the old return type in documentation
rg -i "arterrorinfo" 

Length of output: 24453


Script:

#!/bin/bash
# Search for documentation about discontinuity events and subscriptions
rg -i "discontinuit|subscrib" README.md CONTRIBUTING.md

# Search for API documentation
fd "README|API" -e md

# Look for any Swift documentation comments related to discontinuity events
rg -A 3 "/// .*discontinuit" 

Length of output: 2428

Sources/AblyChat/DefaultMessages.swift (1)

112-114: LGTM! Verify protocol conformance across codebase.

The return type change from Subscription<ARTErrorInfo?> to Subscription<DiscontinuityEvent> aligns with the spec updates. The implementation correctly delegates to featureChannel.

Let's verify the protocol conformance and usage:

✅ Verification successful

Return type change is consistent across the codebase

The verification shows that:

  • The EmitsDiscontinuities protocol correctly defines the method with Subscription<DiscontinuityEvent> return type
  • All implementations (DefaultMessages, DefaultTyping, DefaultPresence, DefaultOccupancy, DefaultRoomReactions, RoomFeature) consistently use the new return type
  • Test files and mocks have been updated accordingly
  • The change is properly integrated across the entire codebase
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify EmitsDiscontinuities protocol implementation and usage

# Check EmitsDiscontinuities protocol definition and implementations
ast-grep --pattern 'protocol EmitsDiscontinuities {
  $$$
}'

# Check other implementations of subscribeToDiscontinuities
ast-grep --pattern 'func subscribeToDiscontinuities() async -> Subscription<DiscontinuityEvent>'

# Check usages of subscribeToDiscontinuities
rg -A 2 'subscribeToDiscontinuities\(\)'

Length of output: 5685

Tests/AblyChatTests/DefaultRoomLifecycleManagerTests.swift (2)

57-57: LGTM! Parameter type change improves efficiency.

The change from array to dictionary for pendingDiscontinuityEvents is a good improvement. Using a dictionary with contributor IDs as keys provides more efficient lookups and better represents the relationship between contributors and their discontinuity events.


Line range hint 752-873: Great test refactoring using parameterization!

Excellent refactoring of the release operation tests. Using @Test(arguments:) to combine related test cases reduces code duplication while maintaining clear test coverage for both detached and initialized states. The implementation is clean and well-documented.

Sources/AblyChat/DefaultTyping.swift (1)

163-163: LGTM!

The subscribeToDiscontinuities() method correctly returns Subscription<DiscontinuityEvent> and delegates to featureChannel.subscribeToDiscontinuities(). The implementation aligns with the updated return type and the overall design.

Sources/AblyChat/RoomLifecycleManager.swift (12)

133-133: Consistent initialization of pendingDiscontinuityEvents

The private initializer now includes pendingDiscontinuityEvents to initialize ContributorAnnotations. This change ensures that pending discontinuity events are properly managed during initialization.


265-265: Addition of pendingDiscontinuityEvent property to ContributorAnnotation

The new pendingDiscontinuityEvent property in ContributorAnnotation allows for individual tracking of pending discontinuity events per contributor. This enhances state management and contributes to more precise event handling.


281-281: Initialize ContributorAnnotations with pendingDiscontinuityEvents

When creating ContributorAnnotations, you now initialize it with pendingDiscontinuityEvents. Verify that this initialization correctly maps pending events to the corresponding contributors.


286-286: Accurate mapping of pending discontinuity events

The assignment of pendingDiscontinuityEvent using pendingDiscontinuityEvents[contributor.id] ensures correct association. This mapping is crucial for handling pending events specific to each contributor.


310-310: Clearing pendingDiscontinuityEvent in clearPendingDiscontinuityEvents

Resetting pendingDiscontinuityEvent to nil when clearing pending events ensures that old events do not persist unintentionally. This maintains the integrity of the event handling process.


443-446: Prevent processing for contributors not yet attached

The guard statement ensures that state changes are only processed for contributors that have already been attached. This prevents unnecessary handling of events for unattached contributors.


452-452: Record pending discontinuity event during operations

When operations are in progress, discontinuity events are now recorded for later processing. This ensures that events are not lost and are handled appropriately once the operation concludes.


455-456: Immediate emission of discontinuity events when no operations are in progress

If there are no ongoing operations, discontinuity events are emitted immediately to the contributor. This aligns with the expected behavior for real-time event handling.


584-594: Implementation of recordPendingDiscontinuityEvent method

The recordPendingDiscontinuityEvent method checks for existing pending events before recording a new one, preventing overwriting unhandled events. This logic ensures that each event is processed in order.


969-969: Proper error creation for detachment failures

Creating an ARTErrorInfo with detachmentFailed ensures that detachment errors are accurately represented and can be handled appropriately by the calling functions.


1047-1051: Consolidate status handling in RELEASE operation

The switch cases for the RELEASE operation now include .detached, .detachedDueToRetryOperation, and .initialized statuses, transitioning directly to .released. This streamlines the release process.


40-40: Ensure all conforming implementations of emitDiscontinuity are updated

The emitDiscontinuity method in the RoomLifecycleContributor protocol now accepts a DiscontinuityEvent instead of an optional ARTErrorInfo. Please ensure that all conforming types and their implementations have been updated to reflect this signature change.

Run the following script to verify all implementations:

✅ Verification successful

All implementations of emitDiscontinuity are correctly updated to use DiscontinuityEvent

Based on the search results, all implementations of emitDiscontinuity have been properly updated to use the DiscontinuityEvent parameter type:

  • MockRoomLifecycleContributor.swift: func emitDiscontinuity(_ discontinuity: DiscontinuityEvent)
  • DefaultRoomLifecycleContributor.swift: func emitDiscontinuity(_ discontinuity: DiscontinuityEvent)
  • MockFeatureChannel.swift: func emitDiscontinuity(_ discontinuity: DiscontinuityEvent)
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that all conforming types implement the updated `emitDiscontinuity` method.

# Find all implementations of `RoomLifecycleContributor` and check their `emitDiscontinuity` methods.
ast-grep --pattern $'extension $_: RoomLifecycleContributor {
  $$$
  func emitDiscontinuity(_ discontinuity: $_) {
    $$$
  }
  $$$
}'

Length of output: 137


Script:

#!/bin/bash
# Let's try a different approach to find implementations
# First, let's find all Swift files that mention RoomLifecycleContributor
rg -l "RoomLifecycleContributor" --type swift

# Then let's look for any emitDiscontinuity implementations
rg "func emitDiscontinuity" --type swift -A 2

Length of output: 1702

Copy link
Collaborator

@maratal maratal left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM, left minor question.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Development

Successfully merging this pull request may close these issues.

2 participants