UTS chat adapter #90
UTS chat adapter #90
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WalkthroughThe changes in this pull request introduce several new files and modifications primarily related to the Changes
Possibly related PRs
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🚧 Files skipped from review as they are similar to previous changes (20)
🔇 Additional comments (1).swiftlint.yml (1)
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Actionable comments posted: 33
🧹 Outside diff range and nitpick comments (18)
UTSChatAdapter/UTSChatAdapter/main.swift (1)
3-19: Add proper resource management and timeout handlingThe WebSocket connection needs proper lifecycle management and timeout handling for RPC calls.
Consider these improvements:
- Add timeout handling for RPC calls
- Implement proper WebSocket cleanup
- Add connection health checks
Example implementation structure:
func serve() async throws { let webSocket = await WebSocketWrapper() var adapter = await ChatAdapter(webSocket: webSocket) // Add connection health check let healthCheckTask = Task { while true { try await Task.sleep(nanoseconds: 30_000_000_000) // 30 seconds try await webSocket.ping() } } defer { healthCheckTask.cancel() try? await webSocket.close() } try await withTimeout(seconds: 300) { // 5 minute timeout try await webSocket.start { message in // ... existing message handling ... } } }Sources/AblyChat/ChatClient.swift (1)
30-32: Document the fallback behavior for clientID.While the implementation is functional, the fallback value "" should be documented. Consider:
- Using a more meaningful default or making it configurable
- Adding documentation explaining the fallback behavior
Consider this enhancement:
+/// The ID of the connected client. +/// Returns the Ably client ID if available, otherwise falls back to "<Noname>". public nonisolated var clientID: String { realtime.clientId ?? "<Noname>" }UTSChatAdapter/UTSChatAdapter/NanoID.swift (3)
1-6: Update the copyright noticeThe copyright notice is outdated. Consider updating it to reflect the current year and organization.
-// Copyright © 2018 Anton Lovchikov. All rights reserved. +// Copyright © 2024 Ably. All rights reserved.
10-25: Enhance documentation with Swift-style doc commentsConsider using Swift's documentation style with
///for better IDE integration and documentation generation.-/// USAGE -/// -/// Nano ID with default alphabet (0-9a-zA-Z_~) and length (21 chars) -/// let id = NanoID.new() +/// A utility for generating unique identifiers based on the Nano ID specification. +/// +/// Example usage: +/// ```swift +/// // Generate with default alphabet (0-9a-zA-Z_~) and length (21 chars) +/// let id = NanoID.new() +/// +/// // Generate with default alphabet and custom length +/// let id = NanoID.new(12) +/// +/// // Generate with custom alphabet and length +/// let id = NanoID.new(alphabet: .uppercasedLatinLetters, size: 15) +/// +/// // Create a reusable generator with custom parameters +/// let generator = NanoID(alphabet: .lowercasedLatinLetters, .numbers, size: 10) +/// let id1 = generator.new() +/// let id2 = generator.new() +/// ```
98-125: Improve enum implementation and efficiencyThe current implementation has a few areas for improvement:
- Remove unnecessary default case in
chars()- Optimize urlSafe case implementation
- Consider using static stored properties for character sets
enum NanoIDAlphabet { + // Static character sets for better performance + private static let uppercased = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + private static let lowercased = "abcdefghijklmnopqrstuvwxyz" + private static let numeric = "1234567890" + private static let special = "~_" + case urlSafe case uppercasedLatinLetters case lowercasedLatinLetters case numbers func toString() -> String { switch self { case .uppercasedLatinLetters, .lowercasedLatinLetters, .numbers: return self.chars() case .urlSafe: - return ("\(NanoIDAlphabet.uppercasedLatinLetters.chars())\(NanoIDAlphabet.lowercasedLatinLetters.chars())\(NanoIDAlphabet.numbers.chars())~_") + // Pre-computed string is more efficient + return NanoIDAlphabet.uppercased + NanoIDAlphabet.lowercased + NanoIDAlphabet.numeric + NanoIDAlphabet.special } } private func chars() -> String { switch self { case .uppercasedLatinLetters: - return "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + return NanoIDAlphabet.uppercased case .lowercasedLatinLetters: - return "abcdefghijklmnopqrstuvwxyz" + return NanoIDAlphabet.lowercased case .numbers: - return "1234567890" - default: - return "" + return NanoIDAlphabet.numeric } } }Sources/AblyChat/Errors.swift (1)
Line range hint
39-56: Consider enhancing the error handling robustness.The status code implementation could be improved in several ways:
- Add a default case to the switch statement to handle future error codes
- Define status code constants instead of using magic numbers (400, 500)
- Consider adding error code ranges validation to ensure no overlaps
internal var statusCode: Int { switch self { case .inconsistentRoomOptions, .messagesDetachmentFailed, .presenceDetachmentFailed, .reactionsDetachmentFailed, .occupancyDetachmentFailed, .typingDetachmentFailed, .roomInFailedState, .roomIsReleasing, .roomIsReleased: - 400 + StatusCode.badRequest case .messagesAttachmentFailed, .presenceAttachmentFailed, .reactionsAttachmentFailed, .occupancyAttachmentFailed, .typingAttachmentFailed: - 500 + StatusCode.serverError + @unknown default: + StatusCode.serverError } } private enum StatusCode { static let badRequest = 400 static let serverError = 500 }Sources/AblyChat/DefaultMessages.swift (1)
47-47: LGTM! Improved subscription initialization.The simplified subscription point initialization with guaranteed timeserial value (even if empty) makes the code more predictable and aligns well with the CHA-M4a requirement for subscription registration.
This change reduces complexity and potential race conditions by removing async operations from the subscription initialization path.
UTSChatAdapter/UTSChatAdapter/WebSocketWrapper.swift (1)
10-10: Consider making the WebSocket URL configurableHardcoding the WebSocket URL limits flexibility and complicates deployment across different environments (development, staging, production). Consider injecting the URL as a parameter, reading it from a configuration file, or using environment variables to make it configurable.
UTSChatAdapter/UTSChatAdapter/Schema+Adjustments.swift (2)
16-16: Clarify the purpose of the emptyPresenceDataWrapperstructThe
PresenceDataWrapperstruct is currently empty. If it serves as a placeholder or marker, consider adding a comment to clarify its intended use. Otherwise, if it's unnecessary, you might remove it.
77-77: Consider convertingoptions()method to a computed propertyIn the
Roomextension,func options() -> RoomOptions { options }could be more idiomatically written as a computed property for better readability.Apply this diff to refactor:
-extension Room { - func options() -> RoomOptions { options } +extension Room { + var options: RoomOptions { + options + }UTSChatAdapter/UTSChatAdapter/Utils.swift (2)
303-314: Improve type handling inPresenceDataWrapper.fromThe current implementation checks for specific dictionary types and then force casts. This can be error-prone and inflexible.
Refactor the method to handle various types more elegantly:
static func from(_ value: Any?) -> PresenceData { if let data = value as? PresenceData { return data } else if let stringValue = value as? String { return stringValue } else { return "" // Or handle default case appropriately } }
262-271: Handle unexpected log level strings gracefullyIn
LogLevel.from(string:), an unknown string defaults to.debug, which might not be the intended behavior.Consider adding a default case that handles unexpected values explicitly:
static func from(string: String) -> Self { switch string.lowercased() { case "trace": return .trace case "debug": return .debug case "info": return .info case "warn": return .warn case "error": return .error case "silent": return .silent default: print("Unknown log level '\(string)'; defaulting to .debug") return .debug } }UTSChatAdapter/UTSChatAdapter/ChatAdapterGenerator.swift (4)
213-214: Clarify the comment regarding simplification to one callback parameter.The comment
// code below simplifies it to just one callback parameter(line 213) indicates an intentional limitation. However, this may not be sufficient for all use cases where callbacks have multiple parameters.Consider updating the comment to explain why only one parameter is handled or refactor the code to support multiple callback parameters.
39-42: Provide custom implementations or address unimplemented paths.In several methods, you check if a given
implPathis inSchema.skipPathsand print a message indicating that it is not yet implemented or requires custom implementation. Examples:
- Lines 39-42 in
generateConstructorForType- Lines 66-70 in
generateMethodForType- Lines 126-133 in
generateFieldForType- Lines 169-173 in
generateMethodWithCallbackForTypeConsider implementing these paths or providing a mechanism to handle unimplemented methods to prevent incomplete code generation. You may also raise warnings or errors during generation to alert developers.
Also applies to: 66-70, 126-133, 169-173
94-116: Simplify result handling logic ingenerateMethodForType.The current implementation has nested conditions to handle different result types. This could be simplified for better readability.
Refactor the result handling by using a switch-case or strategy pattern to manage different result scenarios more cleanly.
8-8: Consider initializinggeneratedFileContentusing a StringBuilder.Accumulating strings using
+=can lead to performance issues for large content.In Swift, while there's no built-in
StringBuilder, consider collecting the generated lines in an array and joining them at the end:var generatedLines: [String] = ["// GENERATED CONTENT BEGIN\n"] ... generatedFileContent = generatedLines.joined(separator: "\n")UTSChatAdapter/UTSChatAdapter/Schema.swift (1)
15-994: Consider externalizing the schema content for better maintainabilityEmbedding a large JSON schema directly within the code can make the file lengthy and harder to manage. Consider loading the schema from an external file or resource to improve maintainability and readability.
For example, you could place the JSON schema in a file like
Schema.jsonand load it as follows:static var json: [JSON] { guard let url = Bundle.main.url(forResource: "Schema", withExtension: "json"), let data = try? Data(contentsOf: url) else { print("Failed to load schema JSON file.") return [] } do { if let jsonArray = try JSONSerialization.jsonObject(with: data) as? [JSON] { return jsonArray } else { print("Schema JSON is not an array of JSON objects.") return [] } } catch { print("Couldn't parse schema JSON: \(error.localizedDescription)") return [] } }UTSChatAdapter/UTSChatAdapter/ChatAdapter.swift (1)
44-775: RefactorhandleRpcCallmethod to improve maintainabilityThe
handleRpcCallfunction is over 700 lines long and contains a largeswitchstatement handling numerous cases. This can make the method difficult to read and maintain.Consider refactoring the
handleRpcCallfunction by extracting each case into its own method. This will enhance code modularity and readability.Example:
mutating func handleRpcCall(rpcParams: JSON) async throws -> String { do { let method = try rpcParams.method() switch method { case "ChatClient#rooms": return try await handleChatClientRooms(rpcParams) // Other cases... default: return try handleDefaultCase(rpcParams, method: method) } } catch { // Error handling } } func handleChatClientRooms(_ rpcParams: JSON) async throws -> String { // Implementation of the "ChatClient#rooms" case } func handleDefaultCase(_ rpcParams: JSON, method: String) throws -> String { logger.warning("Method '\(method)' was not found") return jsonRpcError(try rpcParams.requestId(), error: AdapterError.methodNotFound(method)) }By separating the logic, you can also unit test each handler method individually, improving code quality.
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📒 Files selected for processing (15)
AblyChat.xcworkspace/contents.xcworkspacedata(1 hunks)Sources/AblyChat/ChatClient.swift(1 hunks)Sources/AblyChat/DefaultMessages.swift(2 hunks)Sources/AblyChat/Errors.swift(1 hunks)UTSChatAdapter/UTSChatAdapter.xcodeproj/project.pbxproj(1 hunks)UTSChatAdapter/UTSChatAdapter.xcodeproj/project.xcworkspace/contents.xcworkspacedata(1 hunks)UTSChatAdapter/UTSChatAdapter.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved(1 hunks)UTSChatAdapter/UTSChatAdapter/ChatAdapter.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/ChatAdapterGenerator.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/NanoID.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/Schema+Adjustments.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/Schema.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/Utils.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/WebSocketWrapper.swift(1 hunks)UTSChatAdapter/UTSChatAdapter/main.swift(1 hunks)
✅ Files skipped from review due to trivial changes (3)
- AblyChat.xcworkspace/contents.xcworkspacedata
- UTSChatAdapter/UTSChatAdapter.xcodeproj/project.xcworkspace/contents.xcworkspacedata
- UTSChatAdapter/UTSChatAdapter.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
🔇 Additional comments (10)
UTSChatAdapter/UTSChatAdapter/main.swift (1)
12-12: Verify RPC method implementation completeness
The PR mentions that most tests will fail with "Method not implemented". Let's verify which RPC methods are currently implemented.
Sources/AblyChat/ChatClient.swift (2)
Line range hint 3-10: LGTM! Well-structured protocol definition.
The protocol is well-designed with appropriate use of Swift's type system and concurrency features. The Sendable conformance ensures thread safety when used with actors.
Line range hint 44-47: Verify the status of issue #10.
The internal test helper method references issue #10 regarding making the struct Equatable.
✅ Verification successful
Issue #10 is still open and actively tracked
The referenced issue about making types like ClientOptions conform to protocols such as Equatable remains open. The issue has been updated to track similar protocol conformance needs, including a recent update regarding Hashable conformance for the Message type in PR #45.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check the status of the referenced issue
gh issue view 10 --repo ably-labs/ably-chat-swift --json state,title,body
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UTSChatAdapter/UTSChatAdapter/NanoID.swift (1)
1-125: Verify NanoID usage in chat adapter
Let's verify how this utility is being used in the chat adapter to ensure proper initialization and thread safety.
✅ Verification successful
Let me search for more specific usage patterns to ensure thread safety and proper initialization.
Based on the search results, I can now provide a final verification. The NanoID utility is used safely and correctly in the codebase:
NanoID usage is properly implemented and thread-safe
- The NanoID implementation uses
arc4random_uniform()which is thread-safe - It's only used through the
generateId()utility function which provides a clean abstraction - The function is used correctly for generating reference IDs in the adapter layer, with no shared mutable state
- All usages are synchronous and don't have any threading concerns
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The following scripts were executed for the analysis:
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echo "Checking for main thread usage..."
rg "DispatchQueue.main" --type swift -C 3
Length of output: 7278
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# Search for any concurrent/async usage contexts around NanoID
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rg "generateId\(\)" --type swift -C 3
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Sources/AblyChat/Errors.swift (1)
17-17:
Verify the impact of changing the error code value.
The change of inconsistentRoomOptions from 1 to 40000 is a breaking change that could affect error handling in client code. Additionally, this value (40000) is in a different range compared to other error codes (102xxx).
Consider:
- Adding a migration guide if this is an intentional breaking change
- Aligning the error code with the existing 102xxx range for consistency
- Addressing the TODO comment regarding issue Revisit the errors thrown by library #32
✅ Verification successful
Let me gather more information about error code usage and potential impacts.
Error code change is intentional and properly handled
The change from error code 1 to 40000 appears to be a deliberate change that is:
- Properly documented with a TODO comment linking to issue Revisit the errors thrown by library #32
- Used consistently throughout the codebase
- Part of an internal API (all usages are marked as
internal) - Only used in expected locations: error definitions, error handling, and tests
The different range from other error codes (102xxx) is acceptable as this represents a different category of errors (room-related vs attachment-related).
🏁 Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash
# Search for any usage of the old error code value
rg -l "inconsistentRoomOptions.*=.*1" || echo "No occurrences of old error code found"
# Search for error handling code that might be affected
ast-grep --pattern 'switch $_ {
case $inconsistentRoomOptions:
$$$
}'
Length of output: 204
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# Search for any references to inconsistentRoomOptions
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rg "[^0-9]102[0-9]{3}" -A 1 -B 1
# Look for any error handling or switch statements with this error
rg "case.*inconsistentRoomOptions" -A 3 -B 3
# Check git history for this error code
git log -p | rg "inconsistentRoomOptions"
Length of output: 9477
UTSChatAdapter/UTSChatAdapter.xcodeproj/project.pbxproj (2)
136-144: Verify source files configuration
The source files phase is empty, but the PR objectives mention adapter code implementation. Ensure all necessary source files are properly added to the project.
Let's check for Swift source files in the project directory:
313-316: Verify local package reference path
The relative path "../../ably-chat-swift" assumes a specific directory structure. Ensure this path correctly points to the Ably Chat Swift package in your development environment.
Let's verify the package reference:
UTSChatAdapter/UTSChatAdapter/Schema+Adjustments.swift (2)
90-90: Ensure Presence has a subscribe(events:) method
The subscribeAll() method uses subscribe(events:). Verify that Presence provides this method accepting an array of PresenceEvent values.
Run the following script to confirm:
#!/bin/bash
# Description: Verify the existence of `subscribe(events:)` in `Presence`.
# Search for `subscribe(events:)` method in Presence.swift files
fd -e swift -x grep -H 'func subscribe(events: ' {}58-68: Verify the existence of isBefore, isAfter, and isEqual methods in Message
The before, after, and equal methods rely on isBefore, isAfter, and isEqual methods of Message. Ensure these methods are implemented; otherwise, calling them will result in a runtime error.
Run the following script to check for these methods:
✅ Verification successful
Let me try a different search strategy to locate these methods.
All required methods are properly implemented in Message class
The search results confirm that all three methods (isBefore, isAfter, and isEqual) are properly implemented in Sources/AblyChat/Message.swift with appropriate error handling and tests. Each method:
- Has a complete implementation
- Is properly documented with specifications (CHA-M2a, CHA-M2b, CHA-M2c)
- Has comprehensive test coverage in
MessageTests.swiftincluding positive, negative, and error cases
Therefore, the code in Schema+Adjustments.swift is safe to use these methods.
🏁 Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash
# Description: Verify that `Message` has `isBefore`, `isAfter`, and `isEqual` methods.
# Search for method definitions in Message.swift files
fd -e swift -x grep -H -E 'func isBefore|func isAfter|func isEqual' {}
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# Search for Message class and its method definitions
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# Also search for protocol definitions that might declare these methods
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rg "(isBefore|isAfter|isEqual).*Message" --type swift -A 2 -B 2
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UTSChatAdapter/UTSChatAdapter/Utils.swift (1)
75-77: Ensure compatibility with Swift version for guard let syntax
The use of guard let json else { ... } syntax is available from Swift 5.7 onwards. If your project's minimum Swift version is earlier, this syntax will cause compilation errors.
Check the project's minimum Swift version. If necessary, adjust the syntax as follows:
guard let json = json else {
throw RPCError.invalidJSON
}
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Actionable comments posted: 25
🧹 Outside diff range and nitpick comments (27)
UTSChatAdapter/Sources/Generator/main.swift (1)
1-1: Consider adding a runtime mode check.Since the PR instructions mention disabling the
generateoption in the project scheme, it would be helpful to have a clear separation between generation and runtime modes.Consider implementing a mode check:
+// Check if running in generation mode +let isGenerationMode = ProcessInfo.processInfo.environment["GENERATION_MODE"] == "1" + +guard isGenerationMode else { + print("Generation mode is disabled. Skipping generation.") + exit(0) +} + do { print("Starting chat adapter generation...") try ChatAdapterGenerator().generate() print("Chat adapter generation completed successfully") } catch { print("Failed to generate chat adapter: \(error)") exit(1) }This way, you can control the generation through an environment variable instead of modifying the scheme settings.
UTSChatAdapter/Sources/Generator/Utils.swift (2)
3-3: Consider using Codable for type-safe JSON handling.While
[String: Any]is flexible, it bypasses Swift's type system and can lead to runtime errors. Consider usingCodableprotocol for safer JSON handling where possible.Example of a type-safe approach:
struct SafeJSON: Codable { private let storage: [String: AnyCodable] // Add type-safe accessors here } // Use for dynamic values that must be preserved struct AnyCodable: Codable { let value: Any // Implementation details... }
5-8: Add documentation and handle edge cases.The string transformation methods could benefit from documentation and edge case handling.
Consider this improved implementation:
extension StringProtocol { + /// Converts the first character of the string to lowercase + /// - Returns: A new string with the first character in lowercase, or the original string if empty func firstLowercased() -> String { - prefix(1).lowercased() + dropFirst() + guard !isEmpty else { return String(self) } + return prefix(1).lowercased() + dropFirst() } + /// Converts the first character of the string to uppercase + /// - Returns: A new string with the first character in uppercase, or the original string if empty func firstUppercased() -> String { - prefix(1).uppercased() + dropFirst() + guard !isEmpty else { return String(self) } + return prefix(1).uppercased() + dropFirst() } }UTSChatAdapter/Sources/Adapter/main.swift (2)
21-27: Improve main execution block with proper signal handling and error codesThe main execution block should handle system signals and provide more specific error codes.
Here's a suggested improvement:
+enum ExitCode: Int32 { + case success = 0 + case connectionError = 1 + case rpcError = 2 + case unexpectedError = 3 +} + +func setupSignalHandling() { + signal(SIGTERM) { _ in + print("Received SIGTERM, shutting down...") + exit(ExitCode.success.rawValue) + } +} + +setupSignalHandling() + do { try await serve() } catch { - print("Exiting due to fatal error: \(error)") // TODO: replace with logger - exit(1) + let exitCode: ExitCode + switch error { + case is WebSocketError: + exitCode = .connectionError + case is JsonRpcError: + exitCode = .rpcError + default: + exitCode = .unexpectedError + } + print("Exiting due to fatal error: \(error)") // TODO: replace with logger + exit(exitCode.rawValue) }
16-16: Replace print statements with proper logging frameworkThe current implementation uses print statements with TODO comments. Consider implementing a proper logging strategy.
Consider the following recommendations:
- Use a logging framework (e.g., SwiftyBeaver, CocoaLumberjack)
- Implement different log levels (debug, info, error)
- Include contextual information (timestamp, correlation ID)
- Configure log destinations (console, file, remote)
Would you like me to provide an example implementation of a logging service?
Also applies to: 25-25
UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift (5)
4-5: Consider consolidating error type aliases.Having both
ErrorInfoandAblyErrorInfoas aliases for the same type (ARTErrorInfo) could lead to confusion. Consider using just one of these aliases consistently throughout the codebase.typealias ErrorInfo = ARTErrorInfo -typealias AblyErrorInfo = ARTErrorInfo
16-16: Document the purpose of empty struct.The
PresenceDataWrapperstruct is currently empty. Please add documentation explaining its intended purpose and future implementation plans, or remove if not needed.
18-30: Add documentation for public methods and error handling.The public methods
before,after, andequalshould include:
- Documentation explaining their behavior
- The conditions under which errors are thrown
- Examples of usage
Also, consider using more descriptive method names than
isBefore,isAfter, andisEqualfor the internal implementations.
32-34: Consider removing redundant wrapper method.The
options()method appears to be a simple wrapper around theoptionsproperty. Unless there's a specific reason for this indirection (e.g., future validation or transformation), consider using the property directly.
36-42: Simplify extension and add documentation for async methods.The extension appears to contain unnecessary wrapper methods. Consider:
- Using properties directly instead of wrapper methods for
hasNextandisLast- Adding documentation for async methods explaining:
- Possible error conditions
- When
nilmight be returned- Performance implications
UTSChatAdapter/Sources/Adapter/NanoID.swift (2)
64-96: Optimize string generation performance.The current implementation uses string concatenation in a loop which can be inefficient for large IDs. Consider using
String.UnicodeScalarViewor pre-allocated array for better performance.Here's an optimized version:
static func generate(from alphabet: String, of length: Int) -> String { - var nanoID = "" + var scalars = Array<UnicodeScalar>() + scalars.reserveCapacity(length) for _ in 0..<length { let randomCharacter = NanoIDHelper.randomCharacter(from: alphabet) - nanoID.append(randomCharacter) + scalars.append(randomCharacter.unicodeScalars.first!) } - return nanoID + return String(String.UnicodeScalarView(scalars)) }
26-125: Add documentation and unit tests.While there are usage examples in comments, the public APIs lack proper documentation:
- Add documentation comments for public methods explaining parameters, return values, and possible errors
- Add unit tests to verify:
- ID generation with different alphabets and sizes
- Collision probability
- Performance benchmarks
Would you like me to help generate comprehensive unit tests for this utility?
UTSChatAdapter/Sources/Generator/Schema+Generator.swift (3)
3-16: Consider improving type mapping consistency and flexibility.The type mapping structure has a few potential issues:
- The
PaginatedResulttoPaginatedResultMessagemapping seems too specific and might not work for paginated results of other types.- Some mappings like
MessageEventPayloadtoMessagesuggest inconsistent naming conventions between the schema and implementation.Consider:
- Making
PaginatedResultmapping more generic using generics- Documenting the reasoning behind naming convention differences
41-45: Improve method naming for clarity.The
bigD()function name is not descriptive of its purpose. Consider renaming it to better reflect its functionality.extension String { - func bigD() -> String { + func standardizeIdSuffix() -> String { replacingOccurrences(of: "Id", with: "ID") } }
97-129: Consider using a more standard approach for feature flags.Using a tilde prefix convention for marking unimplemented features is non-standard and might be error-prone. Consider using feature flags or the standard
@availableattribute instead.Some alternatives to consider:
- Use feature flags in configuration
- Use
@availableattribute with a custom platform version- Create an explicit
ImplementationStatusenumWould you like me to provide an example implementation for any of these approaches?
UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift (3)
24-25: Properly close WebSocket when the task is canceledWhen the task is canceled and the loop exits, the
WebSocketconnection remains open. Ensure thewebSocketis closed to free resources.Apply this diff to close the
WebSocketafter the loop:} + webSocket.cancel(with: .goingAway, reason: nil) }
28-28: Review logging of potentially sensitive informationPrinting the contents of
textmay expose sensitive information in logs. Consider redacting or omitting sensitive data.
35-38: Consider usingCodablefor JSON serializationManually constructing JSON strings can be error-prone and hard to maintain. Using
Codablestructs andJSONEncoderimproves reliability and readability.Here's how you might implement it:
struct RoleMessage: Codable { let role: String } // ... Task { let message = RoleMessage(role: "ADAPTER") if let jsonData = try? JSONEncoder().encode(message), let jsonString = String(data: jsonData, encoding: .utf8) { try await send(text: jsonString) } }UTSChatAdapter/Sources/Adapter/Utils.swift (2)
164-171: Enhance type checking injsonString(_:)functionThe function may not handle all types correctly and uses
fatalErrorif the type is notJsonSerialisable. Consider improving type checks and handling or extending support for additional types.
281-290: Simplify and enhance type casting inPresenceDataWrapper.fromThe current implementation checks for specific dictionary types and force casts. Consider using a more flexible approach to handle different data types safely.
Apply this diff for a more robust implementation:
- if value is Dictionary<String, Int64> { - return value as! Dictionary<String, Int64> - } - else if value is Dictionary<String, String> { - return value as! Dictionary<String, String> - } - if value is String { - return value as! String - } - return "" + if let presenceData = value as? PresenceData { + return presenceData + } else { + return "" + }UTSChatAdapter/Sources/Generator/ChatAdapterGenerator.swift (2)
11-14: Use a logging framework instead ofThe
generate()method usesConsider replacing
os_logor a third-party framework to enhance logging capabilities.
49-250: Improve code generation maintainability using a templating engineBuilding the
generatedFileContentby concatenating large strings can make the code hard to read and maintain. Utilizing a templating engine (e.g., Stencil or Sourcery) would simplify the code generation process and improve readability.Implementing a templating engine can help manage complex code structures and make future modifications easier.
UTSChatAdapter/Sources/Generator/Schema.swift (1)
8-8: Enhance Error Logging by Including Error DetailsIncluding the error details in the print statement can aid in debugging by providing more context about the failure.
Apply this diff:
- print("Couldn't parse schema JSON.") + print("Couldn't parse schema JSON: \(error).")UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (4)
792-792: Fix typo in error messageThe error message in line 792 has a typo: 'tne' should be 'the'.
Apply this diff to correct the typo:
-return "Object of type '\(type)' with tne refId '\(refId)' was not found." +return "Object of type '\(type)' with the refId '\(refId)' was not found."
747-747: Correct typo in commentThe word 'enougth' in the comment should be 'enough'.
Apply this diff to correct the typo:
-// `events` is an array of strings in schema file which is not enougth for param auto-generation (should be `PresenceEventType`) +// `events` is an array of strings in schema file which is not enough for param auto-generation (should be `PresenceEventType`)
772-772: ReplaceThe
Apply this diff to use a logging framework:
-print("Warning: method `\(method)` was not found") // TODO: use logger +logger.warning("Method `\(method)` was not found")-print("Error: \(error)") // TODO: use logger +logger.error("Error: \(error)")Ensure that a logging framework is integrated and used consistently throughout the codebase for better log management and configurability.
Also applies to: 778-778
726-728: Avoid redundant calls torpcParams.refId()The method
try rpcParams.refId()is called multiple times. Consider storing the result in a variable to improve efficiency and readability.Apply this diff:
-case "Message#createdAt": - guard let message = idToMessage[try rpcParams.refId()] else { - throw AdapterError.objectNotFound(type: "Message", refId: try rpcParams.refId()) - } +case "Message#createdAt": + let refId = try rpcParams.refId() + guard let message = idToMessage[refId] else { + throw AdapterError.objectNotFound(type: "Message", refId: refId) + }This pattern can be applied to other cases where
try rpcParams.refId()is called multiple times.
🛑 Comments failed to post (25)
UTSChatAdapter/Sources/Generator/main.swift (1)
1-1: 🛠️ Refactor suggestion
Add error handling and logging for the generation process.
The generator should provide feedback about its progress and handle potential failures gracefully.
Consider this improvement:
-ChatAdapterGenerator().generate() +do { + print("Starting chat adapter generation...") + try ChatAdapterGenerator().generate() + print("Chat adapter generation completed successfully") +} catch { + print("Failed to generate chat adapter: \(error)") + exit(1) +}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.do { print("Starting chat adapter generation...") try ChatAdapterGenerator().generate() print("Chat adapter generation completed successfully") } catch { print("Failed to generate chat adapter: \(error)") exit(1) }UTSChatAdapter/Sources/Generator/Utils.swift (1)
10-16: 🛠️ Refactor suggestion
Enhance sorting flexibility and add documentation.
The current sorting implementation uses a fixed descending order which might not be suitable for all use cases.
Consider this improved implementation:
extension JSON { + /// Sort dictionary elements by key + /// - Parameter ascending: Sort order (default: true for ascending) + /// - Returns: Array of key-value pairs sorted by key - func sortedByKey() -> Array<Element> { - sorted { - $0.key > $1.key - } + func sortedByKey(ascending: Bool = true) -> Array<Element> { + sorted { ascending ? $0.key < $1.key : $0.key > $1.key } } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.extension JSON { /// Sort dictionary elements by key /// - Parameter ascending: Sort order (default: true for ascending) /// - Returns: Array of key-value pairs sorted by key func sortedByKey(ascending: Bool = true) -> Array<Element> { sorted { ascending ? $0.key < $1.key : $0.key > $1.key } } }UTSChatAdapter/Sources/Adapter/main.swift (2)
1-1:
⚠️ Potential issueAdd missing imports for WebSocketWrapper and ChatAdapter
The file uses
WebSocketWrapperandChatAdapterbut their imports are missing.Add the required imports:
import Foundation +import WebSocketWrapper +import ChatAdapterCommittable suggestion skipped: line range outside the PR's diff.
3-19: 🛠️ Refactor suggestion
Enhance error handling and add connection management
The WebSocket connection handling could be more robust. Consider the following improvements:
- Add JSON message validation
- Implement connection timeout handling
- Add graceful shutdown mechanism
- Handle WebSocket connection errors explicitly
Here's a suggested implementation:
func serve() async throws { + let timeout = TimeInterval(30) // 30 seconds timeout let webSocket = await WebSocketWrapper() var adapter = await ChatAdapter(webSocket: webSocket) + // Setup shutdown handler + Task { + await handleShutdown(webSocket: webSocket) + } + + // Validate connection + guard try await webSocket.waitForConnection(timeout: timeout) else { + throw AdapterError.connectionTimeout + } try await webSocket.start { message in do { + // Validate JSON-RPC message structure + guard try message.isValidJsonRpc() else { + throw AdapterError.invalidJsonRpc + } + let params = try message.json() print("RPC params: \(params)") let rpcResponse = try await adapter.handleRpcCall(rpcParams: params) try await webSocket.send(text: rpcResponse) } catch { - print("Unhandled exception occured: \(error)") // TODO: replace with logger + let errorResponse = JsonRpcError(error: error).response() + try? await webSocket.send(text: errorResponse) } } }Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift (1)
44-48: 🛠️ Refactor suggestion
Add access modifier and error handling.
For the
subscribeAllmethod:
- Consider making it
publicif it's meant to be used outside the module- Add error handling for the async operation
- Document the behavior and any potential failure scenarios
extension Presence { - func subscribeAll() async -> Subscription<PresenceEvent> { + public func subscribeAll() async throws -> Subscription<PresenceEvent> { await subscribe(events: [.enter, .leave, .present, .update]) } }Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Adapter/NanoID.swift (2)
113-124: 🛠️ Refactor suggestion
Remove unreachable default case.
The
defaultcase in thechars()method is unreachable as all enum cases are explicitly handled. This makes the code less maintainable and could hide bugs when new cases are added.Apply this diff:
private func chars() -> String { switch self { case .uppercasedLatinLetters: return "ABCDEFGHIJKLMNOPQRSTUVWXYZ" case .lowercasedLatinLetters: return "abcdefghijklmnopqrstuvwxyz" case .numbers: return "1234567890" - default: - return "" } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.private func chars() -> String { switch self { case .uppercasedLatinLetters: return "ABCDEFGHIJKLMNOPQRSTUVWXYZ" case .lowercasedLatinLetters: return "abcdefghijklmnopqrstuvwxyz" case .numbers: return "1234567890" } }
26-62: 🛠️ Refactor suggestion
⚠️ Potential issueConsider using a more secure random number generator.
The implementation relies on
arc4random_uniform(indirectly throughNanoIDHelper), which might not be cryptographically secure on all platforms. Consider usingSecRandomCopyBytesfor better security.Apply this diff to improve security:
class NanoID { + private static func secureRandom(upperBound: UInt32) -> UInt32 { + var randomNumber: UInt32 = 0 + let status = SecRandomCopyBytes(kSecRandomDefault, MemoryLayout<UInt32>.size, &randomNumber) + guard status == errSecSuccess else { + // Fallback to arc4random if secure random fails + return arc4random_uniform(upperBound) + } + return randomNumber % upperBound + }Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Generator/Schema+Generator.swift (1)
18-31:
⚠️ Potential issueFix critical issues in JSON primitive type handling.
There are two issues that need attention:
- The
isJsonPrimitiveTypefunction has a bug in the contains check - it's passing an array[typeName]instead of justtypeName.- The
jsonPrimitiveTypesMapis missing mappings for floating-point numbers.Apply these fixes:
fileprivate let jsonPrimitiveTypesMap = [ "string": "\(String.self)", "boolean": "\(Bool.self)", - "number": "\(Int.self)" + "number": "\(Double.self)", + "integer": "\(Int.self)" ] func isJsonPrimitiveType(_ typeName: String) -> Bool { - jsonPrimitiveTypesMap.keys.contains([typeName]) + jsonPrimitiveTypesMap.keys.contains(typeName) }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.fileprivate let jsonPrimitiveTypesMap = [ "string": "\(String.self)", "boolean": "\(Bool.self)", "number": "\(Double.self)", "integer": "\(Int.self)" ] fileprivate let altMethodsMap = [ "onDiscontinuity": "subscribeToDiscontinuities", "subscribe_listener": "subscribeAll", ] func isJsonPrimitiveType(_ typeName: String) -> Bool { jsonPrimitiveTypesMap.keys.contains(typeName) }UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift (4)
8-10:
⚠️ Potential issueIncorrect use of
delegateQueueinURLSessioninitializationUsing
OperationQueue.currentfordelegateQueuemay result in unexpected behavior since it can beniloutside of anOperationQueue. It's safer to specify a dedicatedOperationQueueor useOperationQueue.main.Apply this diff to fix the issue:
- let session = URLSession(configuration: .default, delegate: self, delegateQueue: .current) + let session = URLSession(configuration: .default, delegate: self, delegateQueue: .main)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.func start(onMessage: @escaping (URLSessionWebSocketTask.Message) async throws -> Void) async throws { let session = URLSession(configuration: .default, delegate: self, delegateQueue: .main) let url = URL(string: "ws://localhost:3000")!
19-20:
⚠️ Potential issueAvoid blocking with
sleepin asynchronous codeUsing
sleep(5)blocks the current thread and is not suitable for asynchronous functions. Instead, usetry await Task.sleep(nanoseconds:)to suspend the task without blocking.Apply this diff to fix the issue:
- sleep(5) // try again in 5 seconds + try await Task.sleep(nanoseconds: 5 * 1_000_000_000) // try again in 5 seconds📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.print("Can't connect to \(url): \(error.localizedDescription)") try await Task.sleep(nanoseconds: 5 * 1_000_000_000) // try again in 5 seconds
27-30:
⚠️ Potential issueHandle possible uninitialized
webSocketinsend(text:)Since
webSocketis force-unwrapped, callingsend(text:)beforestart()is called or ifwebSocketisnilwill cause a runtime crash. Consider checking ifwebSocketis initialized.Apply this diff to handle uninitialized
webSocket:func send(text: String) async throws { + guard webSocket != nil else { + throw URLError(.badURL) // Or define a custom error + } print("Sending: \(text)") try await webSocket.send(URLSessionWebSocketTask.Message.string(text)) }Committable suggestion skipped: line range outside the PR's diff.
21-23: 🛠️ Refactor suggestion
Ensure previous WebSocket task is properly canceled before creating a new one
Before creating a new
WebSockettask, the previous task should be canceled to prevent resource leaks or unexpected behavior.Apply this diff to address the issue:
print("Can't connect to \(url): \(error.localizedDescription)") - try await Task.sleep(nanoseconds: 5 * 1_000_000_000) // try again in 5 seconds + try await Task.sleep(nanoseconds: 5 * 1_000_000_000) // try again in 5 seconds + webSocket.cancel(with: .goingAway, reason: nil) webSocket = session.webSocketTask(with: url) // without recreating the task it doesn't work webSocket.resume()Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Adapter/Utils.swift (9)
175-175: 🛠️ Refactor suggestion
Implement the
frommethod or handle the unimplemented case properlyThe
frommethod currently contains afatalError("Not implemented"), which will crash at runtime if called. Implement the method or throw a meaningful error.Would you like assistance in implementing the
frommethod forMessage? I can help provide a basic implementation.
223-224:
⚠️ Potential issueCorrect the assignment to avoid overwriting
presence.enterThe code assigns
presence.entertwice, potentially overwriting the first value. Likely, the second assignment should be topresence.subscribe.Apply this diff to fix the issue:
presence.enter = presenceJson["enter"] as? Bool ?? false - presence.enter = presenceJson["subscribe"] as? Bool ?? false + presence.subscribe = presenceJson["subscribe"] as? Bool ?? false📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.presence.enter = presenceJson["enter"] as? Bool ?? false presence.subscribe = presenceJson["subscribe"] as? Bool ?? false
257-257:
⚠️ Potential issueSafely unwrap optionals when extracting
logLevelForce casting
json["logLevel"] as! Stringcan cause a crash iflogLevelis missing or not aString. Use safe unwrapping to handle potential errors.Apply this diff to fix the issue:
- options.logLevel = .from(string: json["logLevel"] as! String) + if let logLevelString = json["logLevel"] as? String { + options.logLevel = .from(string: logLevelString) + } else { + options.logLevel = .debug // or a default value + }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.if let logLevelString = json["logLevel"] as? String { options.logLevel = .from(string: logLevelString) } else { options.logLevel = .debug // or a default value }
269-269:
⚠️ Potential issueHandle missing or invalid
environmentkey safelyForce casting
json["environment"] as! Stringmay crash ifenvironmentisnilor not aString. Safely unwrap and provide a default or handle the error.Apply this diff to fix the issue:
- options.environment = json["environment"] as! String + guard let environment = json["environment"] as? String else { + fatalError("Expected 'environment' to be a String in ARTClientOptions") + } + options.environment = environment📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.guard let environment = json["environment"] as? String else { fatalError("Expected 'environment' to be a String in ARTClientOptions") } options.environment = environment
271-271:
⚠️ Potential issueEnsure safe casting when setting
logLevelCasting
json["logLevel"] as! UIntcan crash if the value is not present or not aUInt. Safely unwrap and validate the value.Apply this diff to fix the issue:
- options.logLevel = .init(rawValue: json["logLevel"] as! UInt) ?? .debug + if let logLevelRaw = json["logLevel"] as? UInt, + let logLevel = ARTLogLevel(rawValue: logLevelRaw) { + options.logLevel = logLevel + } else { + options.logLevel = .debug // or handle the error accordingly + }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.if let logLevelRaw = json["logLevel"] as? UInt, let logLevel = ARTLogLevel(rawValue: logLevelRaw) { options.logLevel = logLevel } else { options.logLevel = .debug // or handle the error accordingly }
68-70:
⚠️ Potential issueAvoid force unwrapping optionals to prevent runtime crashes
Using
string.data(using: .utf8)!force unwraps an optional, which can cause a runtime crash if the conversion fails. Instead, safely unwrap the optional to handle potentialnilvalues.Apply this diff to fix the issue:
- json = try JSONSerialization.jsonObject(with: string.data(using: .utf8)!) as? JSON + guard let data = string.data(using: .utf8) else { + throw RPCError.invalidJSON + } + json = try JSONSerialization.jsonObject(with: data) as? JSON📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.json = try JSONSerialization.jsonObject(with: data) as? [String: Any] case .string(let string): guard let data = string.data(using: .utf8) else { throw RPCError.invalidJSON } json = try JSONSerialization.jsonObject(with: data) as? JSON
105-105:
⚠️ Potential issueEscape strings properly when constructing JSON strings
When building JSON strings manually, ensure that special characters in
reasonare properly escaped to prevent invalid JSON.Apply this diff to fix the issue using
JSONSerialization:- "{\"code\": \(code), \"statusCode\": \(statusCode), \"reason\": \"\(reason ?? description)\"}" + let jsonDict: [String: Any] = [ + "code": code, + "statusCode": statusCode, + "reason": reason ?? description + ] + let data = try? JSONSerialization.data(withJSONObject: jsonDict) + let jsonString = String(data: data!, encoding: .utf8)! + return jsonStringCommittable suggestion skipped: line range outside the PR's diff.
39-39:
⚠️ Potential issueSafely serialize
ErrorInfoto JSON to handle special charactersDirectly inserting
error.descriptioninto a JSON string may result in invalid JSON if the description contains special characters. UseJSONSerializationorJSONEncoderto ensure proper escaping.Apply this diff to fix the issue:
- return "{\"jsonrpc\":\"2.0\",\"id\":\"\(requestId)\",\"error\":{\"message\": \"\(error.description)\", \"data\": {\"ablyError\": true, \"errorInfo\": \(error.jsonString())}}}" + let errorDict: [String: Any] = [ + "jsonrpc": "2.0", + "id": requestId, + "error": [ + "message": error.description, + "data": [ + "ablyError": true, + "errorInfo": error.jsonString() + ] + ] + ] + let data = try? JSONSerialization.data(withJSONObject: errorDict) + return String(data: data!, encoding: .utf8)!📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.let errorDict: [String: Any] = [ "jsonrpc": "2.0", "id": requestId, "error": [ "message": error.description, "data": [ "ablyError": true, "errorInfo": error.jsonString() ] ] ] let data = try? JSONSerialization.data(withJSONObject: errorDict) return String(data: data!, encoding: .utf8)!
194-195:
⚠️ Potential issueAvoid force casting to prevent runtime crashes
Force casting
json["text"] as! Stringcan lead to a runtime crash if the value isnilor not aString. Safely unwrap the optional and handle the error appropriately.Apply this diff to fix the issue:
- return SendMessageParams(text: json["text"] as! String) + guard let text = json["text"] as? String else { + fatalError("Expected 'text' to be a String in SendMessageParams") + } + return SendMessageParams(text: text)Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Generator/ChatAdapterGenerator.swift (2)
74-75:
⚠️ Potential issueAvoid force casting (
as!) and force unwrapping (!) to prevent runtime crashesIn multiple places, the code uses force casting and force unwrapping, which can lead to runtime exceptions if the cast fails or an optional is
nil. Specifically:
- Line 74:
let argSchema = $0.value as! JSON- Line 215:
let argType = ($0.value as! JSON).type!- Line 258:
var result: JSON { self["result"] as! JSON }Consider using safe casting (
as?) and optional binding (if letorguard let) to handle these cases gracefully.Apply this diff to safely unwrap and cast values:
- let argSchema = $0.value as! JSON + guard let argSchema = $0.value as? JSON else { + return print("Invalid argument schema for \($0.key).") + } - let argType = ($0.value as! JSON).type! + guard let argValue = $0.value as? JSON, let argType = argValue.type else { + return print("Invalid argument type for \($0.key).") + } - var result: JSON { self["result"] as! JSON } + var result: JSON? { self["result"] as? JSON }Ensure that the rest of the code handles optional values appropriately to prevent unexpected crashes.
Also applies to: 215-216, 258-259
226-240: 🛠️ Refactor suggestion
Refactor
generateCallbackto safely handle optionals and improve readabilityIn the
generateCallbackmethod, the current implementation force unwraps optionals, which can lead to crashes if values arenil. Specifically:
- Line 226:
(callbackArgs.first?.value as? JSON)?.isOptional ?? falseConsider safely unwrapping these optionals to enhance code safety and readability.
Apply this diff to refactor the code:
- if (callbackArgs.first?.value as? JSON)?.isOptional ?? false { + if let firstArgValue = callbackArgs.first?.value as? JSON, firstArgValue.isOptional { // Handle the optional parameter case } else { // Handle the non-optional parameter case }This ensures that you're only accessing properties on non-
nilvalues, preventing potential runtime exceptions.Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Generator/Schema.swift (1)
5-11:
⚠️ Potential issueAvoid Force Unwrapping Optionals to Prevent Runtime Crashes
Using
!to force unwrap optionals can lead to runtime crashes if the value isnil. It's safer to use optional binding withguard letorif letto handle potential failures gracefully.Apply this diff to fix the issue:
do { - return try JSONSerialization.jsonObject(with: Self.content.data(using: .utf8)!) as! [JSON] + guard let data = Self.content.data(using: .utf8) else { + print("Couldn't convert content to data.") + return [] + } + let jsonObject = try JSONSerialization.jsonObject(with: data) + guard let jsonArray = jsonObject as? [JSON] else { + print("JSON is not in expected format.") + return [] + } + return jsonArray } catch { print("Couldn't parse schema JSON.") return [] }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.do { guard let data = Self.content.data(using: .utf8) else { print("Couldn't convert content to data.") return [] } let jsonObject = try JSONSerialization.jsonObject(with: data) guard let jsonArray = jsonObject as? [JSON] else { print("JSON is not in expected format.") return [] } return jsonArray } catch { print("Couldn't parse schema JSON.") return [] }UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (1)
777-779:
⚠️ Potential issueHandle potential error when retrieving
requestIdincatchblockIn the
catchblock, callingtry rpcParams.requestId()might fail ifrpcParamsis invalid or incomplete, potentially leading to an unhandled error. Consider safely retrievingrequestIdor providing a default error response.Apply this diff to safeguard against errors:
catch { - print("Error: \(error)") // TODO: use logger - return jsonRpcError(try rpcParams.requestId(), error: error) + logger.error("Error: \(error)") + let requestId = (try? rpcParams.requestId()) ?? "unknown" + return jsonRpcError(requestId, error: error) }This ensures that even if
requestIdcannot be retrieved, the error response can still be sent without causing a crash.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.logger.error("Error: \(error)") let requestId = (try? rpcParams.requestId()) ?? "unknown" return jsonRpcError(requestId, error: error) }
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Actionable comments posted: 15
🧹 Outside diff range and nitpick comments (10)
UTSChatAdapter/Sources/Adapter/NanoID.swift (2)
1-25: Add proper attribution and improve documentation format.The code appears to be derived from third-party work. Please ensure:
- Proper attribution and license compliance
- Convert usage examples to Swift-style documentation format using
///and markdownExample format:
-/// USAGE -/// -/// Nano ID with default alphabet (0-9a-zA-Z_~) and length (21 chars) -/// let id = NanoID.new() +/// Generates unique identifiers with customizable alphabets and lengths. +/// +/// Example usage: +/// ```swift +/// // Generate ID with default alphabet (0-9a-zA-Z_~) and length (21 chars) +/// let id = NanoID.new() +/// ```
64-96: Optimize string operations for better performance.The current implementation could be optimized by:
- Pre-allocating string capacity
- Using a more efficient string building approach
Suggested optimization:
static func generate(from alphabet: String, of length: Int) -> String { - var nanoID = "" + var nanoID = String() + nanoID.reserveCapacity(length) for _ in 0..<length { let randomCharacter = NanoIDHelper.randomCharacter(from: alphabet) nanoID.append(randomCharacter) } return nanoID }UTSChatAdapter/Sources/Adapter/Utils.swift (1)
281-291: SimplifyPresenceDataWrapper.from(_:)methodThe method checks the type of
valueagainst multiple specific dictionary types. Consider simplifying the method by usingAnydirectly or by validating the acceptable types more generally.Apply this diff to simplify type checking:
static func from(_ value: Any?) -> PresenceData { if let presenceData = value as? PresenceData { return presenceData } // Handle other cases or throw an error return "" }UTSChatAdapter/Sources/Generator/ChatAdapterGenerator.swift (5)
40-42: Replace 'print' statements with appropriate error handlingIn these sections,
Suggested change at lines 40-42:
- if Schema.skipPaths.contains([implPath]) { - return print("\(implPath) was not yet implemented or requires custom implementation.") - } + if Schema.skipPaths.contains([implPath]) { + throw AdapterError.unimplementedPath("\(implPath) requires custom implementation.") + }Apply similar changes at lines 68-70, 131-133, and 171-173, defining
AdapterError.unimplementedPathas needed.Also applies to: 68-70, 131-133, 171-173
38-64: Refactor common code to reduce duplicationThe methods
generateConstructorForTypeandgenerateMethodForTypeshare similar logic and structure. Refactoring common functionality into shared helper methods can improve maintainability and reduce code duplication.Consider creating helper methods for:
- Parameter declaration generation
- Call parameter assembly
- Result handling logic
Also applies to: 66-124
213-214: Modify callback handling to support multiple parametersCurrently, the callback generation simplifies to handling only one parameter by using
callbackArgs.prefix(1). This could be limiting for callbacks that require multiple arguments.Suggested change:
- let paramsSignatures = callbackArgs.prefix(1).compactMap { // code below simplifies it to just one callback parameter + let paramsSignatures = callbackArgs.compactMap {Adjust the subsequent code in
generateCallbackto handle all callback arguments appropriately.
254-267: Namespace JSON extensions to prevent conflictsAdding computed properties directly to the
JSONtype may cause conflicts if other parts of the codebase or third-party libraries extendJSON. Consider namespacing these extensions or using a wrapper type.Example:
extension JSONAdapterExtensions where Base == JSON { var name: String? { base["name"] as? String } // Other properties... }This approach avoids polluting the global
JSONnamespace.
95-101: Streamline JSON serialization for response generationThe serialization logic for JSON primitive types and complex objects is handled differently in multiple places. Consolidating this into a single utility function can simplify the code and reduce redundancy.
Suggested approach:
Create a function like
serializeResponse(_:)to handle both primitive and complex types, which checks the type and returns the appropriate JSON string.func serializeResponse(_ value: Any) -> String { if let primitiveValue = value as? PrimitiveType { return "{\\"response\\": \\"\\(primitiveValue)\\"}" } else { return "{\\"response\\": \\(jsonString(value))}" } }Then use this function in the relevant sections.
Also applies to: 145-151
UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (2)
793-793: Typo in error message: 'tne' should be 'the'There's a typo in the error message on line 793. The word 'tne' should be corrected to 'the' for clarity.
747-747: Typo in comment: 'enougth' should be 'enough'In the comment on line 747, 'enougth' is misspelled. It should be 'enough'.
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (19)
AblyChat.xcworkspace/contents.xcworkspacedata(1 hunks)AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved(1 hunks)Sources/AblyChat/ChatClient.swift(1 hunks)Sources/AblyChat/DefaultMessages.swift(2 hunks)Sources/AblyChat/Errors.swift(1 hunks)UTSChatAdapter/.gitignore(1 hunks)UTSChatAdapter/Package.resolved(1 hunks)UTSChatAdapter/Package.swift(1 hunks)UTSChatAdapter/Sources/Adapter/ChatAdapter.swift(1 hunks)UTSChatAdapter/Sources/Adapter/NanoID.swift(1 hunks)UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift(1 hunks)UTSChatAdapter/Sources/Adapter/Utils.swift(1 hunks)UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift(1 hunks)UTSChatAdapter/Sources/Adapter/main.swift(1 hunks)UTSChatAdapter/Sources/Generator/ChatAdapterGenerator.swift(1 hunks)UTSChatAdapter/Sources/Generator/Schema+Generator.swift(1 hunks)UTSChatAdapter/Sources/Generator/Schema.swift(1 hunks)UTSChatAdapter/Sources/Generator/Utils.swift(1 hunks)UTSChatAdapter/Sources/Generator/main.swift(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (15)
- AblyChat.xcworkspace/contents.xcworkspacedata
- AblyChat.xcworkspace/xcshareddata/swiftpm/Package.resolved
- Sources/AblyChat/ChatClient.swift
- Sources/AblyChat/DefaultMessages.swift
- Sources/AblyChat/Errors.swift
- UTSChatAdapter/.gitignore
- UTSChatAdapter/Package.resolved
- UTSChatAdapter/Package.swift
- UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift
- UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift
- UTSChatAdapter/Sources/Adapter/main.swift
- UTSChatAdapter/Sources/Generator/Schema+Generator.swift
- UTSChatAdapter/Sources/Generator/Schema.swift
- UTSChatAdapter/Sources/Generator/Utils.swift
- UTSChatAdapter/Sources/Generator/main.swift
🔇 Additional comments (2)
UTSChatAdapter/Sources/Adapter/Utils.swift (1)
184-186: Verify the ordering logic in QueryOptions.from(_:)
The orderBy parameter in QueryOptions.from(_:) is set based on the direction field. Currently, when direction is "forwards", orderBy is set to .newestFirst. Please verify if this matches the intended behavior, as "forwards" might suggest ordering from oldest to newest.
Ensure that the ordering logic aligns with the expected behavior. If necessary, adjust the comparison to reflect the correct order.
UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (1)
68-68: Verify the use of '~' prefix in case labels
Several case labels in the handleRpcCall method include a tilde ~ prefix (e.g., case "~ChatClient#connection":). Please verify whether the tilde is intentional and necessary for method matching, as it may affect the handling of RPC calls if not appropriately processed.
Also applies to: 94-94, 230-230, 282-282, 301-301, 378-378, 387-387, 396-396, 423-423, 442-442, 465-465, 474-474, 484-484, 503-503, 526-526, 550-550, 578-578, 588-588, 598-598, 618-618, 635-635, 643-643, 651-651, 659-659, 669-669, 688-688
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@coderabbitai full review (ignore NanoID.swift file) |
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@maratal: Understood, I will perform a full review of the PR excluding the 1. AblyChat.xcworkspace/contents.xcworkspacedata
2. Sources/AblyChat/ChatClient.swift
3. Sources/AblyChat/DefaultMessages.swift
4. Sources/AblyChat/Errors.swift
5. UTSChatAdapter/.gitignore
6. UTSChatAdapter/Package.swift
7. UTSChatAdapter/Sources/Adapter/ChatAdapter.swift
8. UTSChatAdapter/Sources/Adapter/Utils.swift
9. UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift
10. UTSChatAdapter/Sources/Generator/ChatAdapterGenerator.swift
11. UTSChatAdapter/Sources/Generator/Schema.swift
12. General Comments
Let me know if you have any questions or need further assistance. ✅ Actions performedFull review triggered. |
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@coderabbitai remove all your posts where it's marked "Outdated" |
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@maratal: Understood, I will resolve all my comments that are marked as "Outdated". ✅ Actions performedComments resolved. |
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@umair-ably @ttypic @lawrence-forooghian Now it's on the CI. |
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🧹 Outside diff range and nitpick comments (2)
.github/workflows/unified-test-suite.yml (2)
23-24: Consider using local package installationGlobal package installation in CI environments can lead to versioning conflicts and pollution of the global npm space. Consider installing the package locally or using
npxto run it directly.Apply this diff:
- - name: Install uts-chat globally - run: npm install -g @ably-labs/uts-chat + - name: Install uts-chat + run: npm install @ably-labs/uts-chat
26-30: Document Xcode version requirementThe comment indicates this step is temporary, but it's important to document the minimum Xcode version requirement in the project's README or documentation.
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@umair-ably I've made a different fix to the hanging problem, which was caused by the channel be in |
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Actionable comments posted: 14
🧹 Outside diff range and nitpick comments (8)
UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift (4)
4-5: Consider consolidating redundant type aliases
ErrorInfoandAblyErrorInfoare both aliased toARTErrorInfo. This redundancy could lead to confusion. Consider keeping only one of these aliases to maintain a single source of truth.typealias ErrorInfo = ARTErrorInfo -typealias AblyErrorInfo = ARTErrorInfo
16-16: Document or implement the empty structThe purpose of
PresenceDataWrapperis unclear. If this is a placeholder for future implementation, please add documentation explaining its intended use. If it's not needed, consider removing it.
36-42: Add error handling documentation for async operationsThe async methods should include documentation describing:
- The possible error cases
- The meaning of nil returns
- Any preconditions for successful execution
extension PaginatedResult { + /// Returns true if there are more results available func hasNext() -> Bool { hasNext } + /// Returns true if this is the last page of results func isLast() -> Bool { isLast } + /// Asynchronously fetches the next page of results + /// - Throws: Network errors or invalid pagination state + /// - Returns: The next page of results, or nil if no more results exist func next() async throws -> (any PaginatedResult<T>)? { try await next }
44-48: Consider parameterizing presence event typesThe
subscribeAllmethod hard-codes the event types. Consider making it more flexible by allowing callers to specify which events they want to subscribe to.extension Presence { - func subscribeAll() async -> Subscription<PresenceEvent> { - await subscribe(events: [.enter, .leave, .present, .update]) + /// Subscribe to specified presence events + /// - Parameter events: Array of presence events to subscribe to. Defaults to all events. + /// - Returns: A subscription for the specified presence events + func subscribeAll(events: [PresenceEvent.Kind] = [.enter, .leave, .present, .update]) async -> Subscription<PresenceEvent> { + await subscribe(events: events) } }UTSChatAdapter/Sources/Adapter/NanoID.swift (1)
43-44: Document rationale for default parametersAdd documentation explaining why 21 characters and URL-safe alphabet were chosen as defaults. This helps future maintainers understand the security and compatibility considerations.
UTSChatAdapter/Sources/Generator/Schema.swift (1)
14-994: Consider improving schema management and documentationThe current implementation has several architectural concerns:
- Schema is hardcoded as a large string literal, making it difficult to maintain
- No versioning information for schema compatibility
- Missing documentation for schema format and validation
Consider these improvements:
- Move schema to a separate JSON file and load it at runtime
- Add version field to track schema changes
- Add documentation for schema format
- Add validation for required fields
Example implementation:
// Schema.swift enum Schema { /// Schema version for compatibility checking static let version = "1.0.0" /// Path to schema file relative to bundle private static let schemaFile = "chat_schema.json" static var json: [JSON] { do { guard let url = Bundle.module.url(forResource: schemaFile, withExtension: nil), let data = try? Data(contentsOf: url), let parsed = try JSONSerialization.jsonObject(with: data) as? [JSON] else { print("Failed to load schema file") return [] } // Validate schema version guard let schemaVersion = parsed.first?["version"] as? String, schemaVersion == version else { print("Schema version mismatch") return [] } return parsed } catch { print("Failed to parse schema: \(error)") return [] } } }Would you like me to help create a separate issue to track these improvements?
UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift (2)
9-9: Make the WebSocket URL configurableHardcoding the WebSocket URL limits flexibility and makes it difficult to connect to different servers or environments. Consider injecting the URL via an initializer parameter or configuration file to allow for better adaptability.
Example of making the URL configurable:
final class WebSocketWrapper: NSObject, URLSessionWebSocketDelegate { private var webSocket: URLSessionWebSocketTask? private let url: URL init(url: URL) { self.url = url } // ... }
18-22: Enhance error handling and reconnection logicRecreating the
webSockettask upon any error may not be optimal, as some errors might be recoverable without restarting the connection. Additionally, the previouswebSockettask should be canceled to prevent resource leaks. Consider refining the error handling to distinguish between different error types and ensure proper cleanup.Example modification:
catch { print("Connection error: \(error.localizedDescription). Retrying in 5 seconds...") webSocket.cancel() try await Task.sleep(nanoseconds: 5 * 1_000_000_000) webSocket = session.webSocketTask(with: url) webSocket.resume() }
🛑 Comments failed to post (14)
UTSChatAdapter/Sources/Adapter/Schema+Adapter.swift (1)
18-30: 🛠️ Refactor suggestion
Add documentation and parameter validation
The message comparison methods lack documentation and parameter validation. Consider:
- Adding documentation explaining the comparison logic
- Validating the input parameter for null/invalid values
public extension Message { + /// Checks if the current message occurred before the given message + /// - Parameter message: The message to compare against + /// - Throws: If either message is invalid or comparison fails + /// - Returns: true if the current message is before the given message func before(message: Message) throws -> Bool { + guard message.id != nil else { + throw ErrorInfo(code: 40000, message: "Invalid message: missing id") + } try isBefore(message) }Committable suggestion skipped: line range outside the PR's diff.
UTSChatAdapter/Sources/Adapter/NanoID.swift (5)
110-121: 🛠️ Refactor suggestion
Improve enum implementation
Several improvements needed:
- Remove unnecessary default case
- Define character sets as static constants
- Add validation for duplicate characters in urlSafe case
Apply this diff:
+ private static let UPPERCASE_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + private static let LOWERCASE_CHARS = "abcdefghijklmnopqrstuvwxyz" + private static let NUMBER_CHARS = "1234567890" + private static let SPECIAL_CHARS = "~_" + private func chars() -> String { switch self { case .uppercasedLatinLetters: - "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + Self.UPPERCASE_CHARS case .lowercasedLatinLetters: - "abcdefghijklmnopqrstuvwxyz" + Self.LOWERCASE_CHARS case .numbers: - "1234567890" + Self.NUMBER_CHARS - default: - "" } }Committable suggestion skipped: line range outside the PR's diff.
51-55:
⚠️ Potential issueAdd input validation in static factory method
The static
new(alphabet:size:)method should validate its inputs similar to the instance initializer.Apply this diff:
static func new(alphabet: NanoIDAlphabet..., size: Int) -> String { + guard size > 0 else { + preconditionFailure("Size must be greater than 0") + } + guard !alphabet.isEmpty else { + preconditionFailure("Alphabet must not be empty") + } let charactersString = NanoIDHelper.parse(alphabet) + guard !charactersString.isEmpty else { + preconditionFailure("Parsed alphabet must not be empty") + } return NanoIDHelper.generate(from: charactersString, of: size) }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements./// Generates a Nano ID using given occasional parameters static func new(alphabet: NanoIDAlphabet..., size: Int) -> String { guard size > 0 else { preconditionFailure("Size must be greater than 0") } guard !alphabet.isEmpty else { preconditionFailure("Alphabet must not be empty") } let charactersString = NanoIDHelper.parse(alphabet) guard !charactersString.isEmpty else { preconditionFailure("Parsed alphabet must not be empty") } return NanoIDHelper.generate(from: charactersString, of: size) }
32-35:
⚠️ Potential issueAdd input validation in initializer
The initializer should validate its inputs to prevent runtime issues:
- Validate that size is positive
- Ensure alphabet array is not empty
- Check for and handle duplicate characters in the alphabet
Apply this diff:
init(alphabet: NanoIDAlphabet..., size: Int) { + guard size > 0 else { + preconditionFailure("Size must be greater than 0") + } + guard !alphabet.isEmpty else { + preconditionFailure("Alphabet must not be empty") + } self.size = size self.alphabet = NanoIDHelper.parse(alphabet) + guard !self.alphabet.isEmpty else { + preconditionFailure("Parsed alphabet must not be empty") + } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.init(alphabet: NanoIDAlphabet..., size: Int) { guard size > 0 else { preconditionFailure("Size must be greater than 0") } guard !alphabet.isEmpty else { preconditionFailure("Alphabet must not be empty") } self.size = size self.alphabet = NanoIDHelper.parse(alphabet) guard !self.alphabet.isEmpty else { preconditionFailure("Parsed alphabet must not be empty") } }
88-92:
⚠️ Potential issueReplace arc4random_uniform with SecRandomCopyBytes
Using
arc4random_uniformfor cryptographic purposes is not secure. UseSecRandomCopyBytesinstead for better security.Apply this diff:
static func randomCharacter(from string: String) -> Character { - let randomNum = Int(arc4random_uniform(UInt32(string.count))) + var bytes = [UInt8](repeating: 0, count: 1) + guard SecRandomCopyBytes(kSecRandomDefault, bytes.count, &bytes) == errSecSuccess else { + preconditionFailure("Failed to generate secure random number") + } + let randomNum = Int(bytes[0]) % string.count let randomIndex = string.index(string.startIndex, offsetBy: randomNum) return string[randomIndex] }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.static func randomCharacter(from string: String) -> Character { var bytes = [UInt8](repeating: 0, count: 1) guard SecRandomCopyBytes(kSecRandomDefault, bytes.count, &bytes) == errSecSuccess else { preconditionFailure("Failed to generate secure random number") } let randomNum = Int(bytes[0]) % string.count let randomIndex = string.index(string.startIndex, offsetBy: randomNum) return string[randomIndex] }
1-122: 💡 Codebase verification
Add test coverage for NanoID implementation
The verification reveals:
- No test directory exists in UTSChatAdapter
- NanoID is used for ID generation in Utils.swift but lacks test coverage
- The implementation includes critical functionality (random generation, character sets) that should be tested for reliability
Please add tests to cover:
- Basic functionality of
NanoID.new()with default parameters- Custom alphabet and size combinations
- Validation of generated IDs against specified character sets
- Edge cases (empty alphabet, zero size)
- Random number generation reliability
Create tests in a new directory:
UTSChatAdapter/Tests/AdapterTests/🔗 Analysis chain
Add comprehensive test coverage
Please add unit tests to verify:
- Input validation
- Random number generation
- Collision probability
- Character set handling
- Edge cases
Run the following script to check for existing test coverage:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check test coverage for NanoID implementation # Find test files echo "Looking for NanoID test files..." fd -e swift "test|Test" | rg -i "nano" # Check test references echo "Checking test references to NanoID..." rg "NanoID" -t swift -g "*test*" -A 3Length of output: 385
Script:
#!/bin/bash # Let's try a broader search for test files first echo "Looking for test directories and files..." fd -t d "test" -i fd -t f -e swift # Then check for any NanoID related files echo -e "\nSearching for NanoID related files..." rg -l "NanoID" -t swift # Look for potential test frameworks/patterns echo -e "\nChecking for test framework patterns..." rg -l "XCTest|@testable" -t swiftLength of output: 5038
Script:
#!/bin/bash # Let's check if there are any tests for NanoID in UTSChatAdapter directory echo "Checking for NanoID tests in UTSChatAdapter..." fd -t d "test" -i -p "UTSChatAdapter" # Check how NanoID is used in Utils.swift since it references it echo -e "\nChecking NanoID usage in Utils.swift..." rg "NanoID" UTSChatAdapter/Sources/Adapter/Utils.swift -C 3 # Look for any test files in UTSChatAdapter echo -e "\nLooking for test files in UTSChatAdapter..." fd -e swift -p "UTSChatAdapter" | rg -i "test"Length of output: 556
UTSChatAdapter/Sources/Generator/Schema.swift (2)
4-11:
⚠️ Potential issueImprove error handling and avoid force unwrapping
The current implementation has several issues:
- Force unwrapping (
!) can lead to runtime crashes- Error handling is too basic and loses error context
- No validation of parsed content
Consider this safer implementation:
static var json: [JSON] { do { - return try JSONSerialization.jsonObject(with: content.data(using: .utf8)!) as! [JSON] + guard let data = content.data(using: .utf8) else { + print("Failed to encode schema content as UTF-8") + return [] + } + guard let parsed = try JSONSerialization.jsonObject(with: data) as? [JSON] else { + print("Failed to parse schema JSON: invalid format") + return [] + } + return parsed } catch { - print("Couldn't parse schema JSON.") + print("Failed to parse schema JSON: \(error)") return [] } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.static var json: [JSON] { do { guard let data = content.data(using: .utf8) else { print("Failed to encode schema content as UTF-8") return [] } guard let parsed = try JSONSerialization.jsonObject(with: data) as? [JSON] else { print("Failed to parse schema JSON: invalid format") return [] } return parsed } catch { print("Failed to parse schema JSON: \(error)") return [] } }
944-947: 💡 Codebase verification
Schema's serialization configuration for TypingEvent should be
trueThe
TypingEventis explicitly required to be serializable in the codebase:
- It implements the
JsonSerialisableprotocol inUTSChatAdapter/Sources/Adapter/Utils.swift- It's used in WebSocket communication where the adapter serializes it to JSON in
ChatAdapter.swift- The current schema marking it as
"serializable": falsecontradicts the actual implementation and usage🔗 Analysis chain
Verify serialization configuration for TypingEvent
The
TypingEventtype in the subscription callback is marked as non-serializable, but it appears to be used in a context where serialization might be needed for event handling.
Let me analyze the findings. The search results show that
TypingEventis used in several contexts:
- It's defined as a simple struct in
Sources/AblyChat/Typing.swiftcontaining just a set of strings- It's used in subscriptions and mock implementations
- It implements
JsonSerialisableinUTSChatAdapter/Sources/Adapter/Utils.swift- The schema marks it as non-serializable, but the adapter actually needs to serialize it for WebSocket communication
Let me verify one more aspect about the serialization implementation:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for TypingEvent usage to verify serialization requirements rg "TypingEvent" -A 5 -B 5Length of output: 8481
Script:
#!/bin/bash # Check the JsonSerialisable protocol definition and implementation rg "JsonSerialisable" -A 5 -B 5Length of output: 5959
UTSChatAdapter/Sources/Adapter/WebSocketWrapper.swift (6)
5-5:
⚠️ Potential issueAvoid using implicitly unwrapped optionals for
webSocketDeclaring
webSocketas an implicitly unwrapped optional (URLSessionWebSocketTask!) can lead to runtime crashes if it's accessed before being initialized. Consider defining it as an optional and safely unwrapping it where necessary.Apply this diff to address the issue:
-private var webSocket: URLSessionWebSocketTask! +private var webSocket: URLSessionWebSocketTask?📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.private var webSocket: URLSessionWebSocketTask?
8-8:
⚠️ Potential issueReview the use of
.currentfordelegateQueueUsing
.currentfordelegateQueuemay not behave as expected if there's no currentOperationQueue. This could lead to delegate callbacks not being executed on the correct thread. Consider specifyingnilto use the default delegate queue or creating a dedicatedOperationQueue.Apply this diff to specify the default delegate queue:
-let session = URLSession(configuration: .default, delegate: self, delegateQueue: .current) +let session = URLSession(configuration: .default, delegate: self, delegateQueue: nil)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.let session = URLSession(configuration: .default, delegate: self, delegateQueue: nil)
33-38:
⚠️ Potential issueEnsure correct actor isolation when calling
send(text:)fromnonisolatedcontextSince
send(text:)is actor-isolated to theMainActor, calling it from anonisolatedmethod requires explicit coordination to maintain thread safety. Useawait MainActor.runto execute the send operation on the main actor.Apply this diff to ensure proper actor isolation:
Task { - do { - try await send(text: "{\"role\":\"ADAPTER\"}") - } catch { - print("Failed to send initial message: \(error.localizedDescription)") - } + await MainActor.run { + Task { + do { + try await self.send(text: "{\"role\":\"ADAPTER\"}") + } catch { + print("Failed to send initial message: \(error.localizedDescription)") + } + } + } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.nonisolated func urlSession(_: URLSession, webSocketTask _: URLSessionWebSocketTask, didOpenWithProtocol _: String?) { print("Connected to server") Task { await MainActor.run { Task { do { try await self.send(text: "{\"role\":\"ADAPTER\"}") } catch { print("Failed to send initial message: \(error.localizedDescription)") } } } } }
33-38:
⚠️ Potential issueHandle errors when sending the initial message in
didOpenWithProtocolThe
send(text:)method isasync throws, but the current implementation does not handle potential errors. This could lead to unhandled exceptions if the message fails to send. Wrap the call in ado-catchblock to handle errors appropriately.Apply this diff to handle errors:
Task { - try await send(text: "{\"role\":\"ADAPTER\"}") + do { + try await send(text: "{\"role\":\"ADAPTER\"}") + } catch { + print("Failed to send initial message: \(error.localizedDescription)") + } }📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.nonisolated func urlSession(_: URLSession, webSocketTask _: URLSessionWebSocketTask, didOpenWithProtocol _: String?) { print("Connected to server") Task { do { try await send(text: "{\"role\":\"ADAPTER\"}") } catch { print("Failed to send initial message: \(error.localizedDescription)") } } }
19-19:
⚠️ Potential issueUse
Task.sleepinstead ofsleepin async contextCalling
sleep(5)blocks the current thread, which is not appropriate in an async context and can lead to performance issues. Replace it withtry await Task.sleep(nanoseconds:)to suspend the task without blocking the thread.Apply this diff to fix the issue:
-print("Can't connect to \(url): \(error.localizedDescription)") -sleep(5) // try again in 5 seconds +print("Connection error: \(error.localizedDescription). Retrying in 5 seconds...") +try await Task.sleep(nanoseconds: 5 * 1_000_000_000) // try again in 5 secondsCommittable suggestion skipped: line range outside the PR's diff.
26-28:
⚠️ Potential issueEnsure
webSocketis connected before sending messagesBefore attempting to send a message, verify that
webSocketis notniland is in the connected state to prevent potential crashes or unexpected behavior.Apply this diff to add a safety check:
func send(text: String) async throws { print("Sending: \(text)") + guard let webSocket = webSocket else { + throw URLError(.notConnectedToInternet) + } try await webSocket.send(.string(text)) }Committable suggestion skipped: line range outside the PR's diff.
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (4)
UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (4)
810-810: Fix typographical error in error messageThere's a typo in the error description string: "tne" should be "the".
Apply this diff to correct the typo:
- "Object of type '\(type)' with tne refId '\(refId)' was not found." + "Object of type '\(type)' with the refId '\(refId)' was not found."
747-747: Correct typo in comment: 'enougth' should be 'enough'In the comment on line 747, "enougth" is misspelled. Correcting this improves code readability.
Apply this diff:
- // `events` is an array of strings in schema file which is not enougth for param auto-generation (should be `PresenceEventType`) + // `events` is an array of strings in schema file which is not enough for param auto-generation (should be `PresenceEventType`)
55-55: Use JSON encoding instead of manual string interpolationThroughout the code, JSON responses are constructed using manual string interpolation, which can lead to errors if the data contains special characters. It's safer and more robust to use JSON serialization.
For example, replace:
return try jsonRpcResult(rpcParams.requestId(), "{\"refId\":\"\(fieldRefId)\"}")With:
let responseData = try JSONEncoder().encode(["refId": fieldRefId]) let responseString = String(data: responseData, encoding: .utf8)! return try jsonRpcResult(rpcParams.requestId(), responseString)This ensures that all strings are properly escaped and the JSON is valid. Applying this change to all similar instances improves code reliability.
Also applies to: 65-65, 75-75, 101-101, 137-137, 145-145, 153-153, 161-161, 169-169, 177-177, 187-187, 198-198, 209-209, 247-247, 295-295, 318-318, 335-335, 338-338, 347-347, 358-358, 367-367, 376-376, 402-402, 411-411, 421-421, 440-440, 463-463, 472-472, 501-501, 524-524, 540-540, 548-548, 576-576, 606-606, 616-616, 641-641, 649-649, 657-657, 667-667, 686-686, 709-709, 722-722, 730-730, 732-732
47-788: Consider refactoring to reduce repetitive code in switch casesMany cases in the
handleRpcCallmethod share similar patterns of retrieving therefId, fetching objects from dictionaries, and handling errors. Refactoring this pattern can enhance code maintainability and readability.Introduce a generic helper function:
func getObject<T>(from dict: [String: T], refId: String, typeName: String) throws -> T { guard let obj = dict[refId] else { throw AdapterError.objectNotFound(type: typeName, refId: refId) } return obj }Then, update the cases. For example, replace:
let refId = try rpcParams.refId() guard let chatClientRef = idToChatClient[refId] else { throw AdapterError.objectNotFound(type: "ChatClient", refId: refId) }With:
let refId = try rpcParams.refId() let chatClientRef = try getObject(from: idToChatClient, refId: refId, typeName: "ChatClient")This refactoring reduces duplication and simplifies each case, making the codebase easier to manage.
📜 Review details
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📒 Files selected for processing (4)
Sources/AblyChat/ChatClient.swift(1 hunks)Sources/AblyChat/DefaultMessages.swift(1 hunks)Sources/AblyChat/Errors.swift(1 hunks)UTSChatAdapter/Sources/Adapter/ChatAdapter.swift(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- Sources/AblyChat/ChatClient.swift
- Sources/AblyChat/DefaultMessages.swift
- Sources/AblyChat/Errors.swift
🔇 Additional comments (1)
UTSChatAdapter/Sources/Adapter/ChatAdapter.swift (1)
791-791: Verify the use of print statements and consider logging
The print statements on lines 791 and 795 are marked with TODO comments. Ensure that these are replaced with a proper logging framework to adhere to best practices.
Previous comments and TODO marks already acknowledge this. No further action is required at this time.
Also applies to: 795-795
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To run adapter locally:
cdtounified-test-suite-chatrepo directory and runnpm run start:dispatchercommandUTSChatAdaptertarget in Xcodeunified-test-suite-chatrun tests:npm run start:testcommandMost of it will fail with "Method not implemented". But I'm opening the PR since the generator and adapter code will not change much since this point.
Temporary fix is needed (see "DefaultMessages.swift" file changes) without which one of the history tests hangs, @umair-ably couldn't you take a look at it? You can run only messages tests passing test file name to the test command:
npm run start:test messages.integration.test.tsSummary by CodeRabbit
Release Notes
New Features
ChatAdapterfor managing chat operations and handling RPC calls.WebSocketWrapperclass to manage WebSocket connections with automatic reconnection.ChatAdapterGeneratorfor generating Swift code based on a defined schema.NanoIDclass for generating unique identifiers.UTSChatAdapter.Improvements
clientIDproperty in the chat client.New Files
.gitignoreandPackage.resolvedfor theUTSChatAdapterproject.main.swiftfiles for bothAdapterandGeneratorto streamline execution.