refactor(src): reorganize and modularize src directory structure #12
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This commit refactors and modularizes the source directory structure by splitting large files into smaller modules. Specifically: - Moved message-related types and utilities into their own submodules under `src/message/`. - Created separate submodules for configuration (`src/config/*`) and connection handling (`src/connection/*`). - Introduced protocol-specific submodules (`src/protocol/*`) to handle ACP protocol logic. - Updated imports across the project to reflect these changes. Additionally, some files were renamed or moved around within tests directories to better align with their respective feature areas. These changes aim to improve readability, maintainability, and ease of navigation through the codebase.
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🎯 TL;DR & Recommendation
Recommendation: Request Changes
This PR introduces a significant architectural refactoring that improves modularity but contains breaking changes to public APIs and import paths that could impact external consumers.
📄 Documentation Diagram
This diagram documents the new modular client architecture and workflow introduced by the refactoring.
sequenceDiagram
participant EC as External Consumer
participant IC as IFlowClient
participant CH as ConnectionHandler
participant SC as StdioConnection
participant WC as WebSocketConnection
participant AP as ACPProtocol
note over IC: PR #35;12: New modular structure
EC->>IC: connect()
IC->>CH: initialize(options)
alt Stdio Mode
CH->>SC: handle_connection()
SC->>AP: process_messages()
else WebSocket Mode
CH->>WC: handle_connection()
WC->>AP: process_messages()
end
AP-->>IC: send_message()
IC-->>EC: messages() stream
note over AP: Handles ACP protocol logic
🌟 Strengths
- Solid modularization that enhances code maintainability and organization
- Systematic updates to examples demonstrating proper integration
| Priority | File | Category | Impact Summary | Anchors |
|---|---|---|---|---|
| P1 | src/acp_protocol.rs | Architecture | Import restructuring breaks public interface | path:examples/advanced/mcp_example.rs |
| P1 | src/client.rs | Architecture | Complete removal breaks external API consumers | path:examples/explore_api.rs |
| P2 | src/acp_protocol.rs | Maintainability | Code readability improvement with let-chains | |
| P2 | src/acp_protocol.rs | Architecture | Type path updates reflect new module structure | |
| P2 | Cargo.toml | Architecture | New dependency futures-util added for async | |
| P2 | examples/advanced/logging_example.rs | Testing | Inconsistent import patterns in examples | |
| P2 | src/client/acp_handler.rs | Architecture | Well-structured new modular code |
🔍 Notable Themes
- Architectural Breaking Changes: Multiple P1 findings highlight risks to external API consumers due to module restructuring and removal of key files.
- Improved Code Organization: The refactoring successfully modularizes the codebase, enhancing maintainability and aligning with Rust best practices.
📈 Risk Diagram
This diagram illustrates the risk of breaking changes to external API consumers due to module restructuring.
sequenceDiagram
participant EC as External Consumer
participant IC as IFlowClient
participant MS as Module System
note over EC,MS: R1(P1): Breaking change risk
EC->>IC: call API (old import)
IC->>MS: resolve import
MS-->>IC: import not found
IC-->>EC: compilation error
note over EC: External code breaks due to
note over EC: restructured module paths
⚠️ **Unanchored Suggestions (Manual Review Recommended)**
The following suggestions could not be precisely anchored to a specific line in the diff. This can happen if the code is outside the changed lines, has been significantly refactored, or if the suggestion is a general observation. Please review them carefully in the context of the full file.
📁 File: src/client.rs
The complete removal of src/client.rs (905 lines) and replacement with a new modular structure under src/client/ represents a significant architectural change. The related_context shows multiple examples (explore_api.rs, mcp_example.rs, websocket_client.rs) that import and use IFlowClient. While the examples appear to have been updated, this change could break external consumers who rely on the previous client implementation. The new modular structure improves maintainability but requires careful verification that all public APIs remain compatible.
Related Code:
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| use crate::config::options::IFlowOptions; | ||
| use crate::message::types::{Message, PermissionMode}; |
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P1 | Confidence: High
The import restructuring in acp_protocol.rs reflects the new modular architecture but introduces a breaking change to the module's public interface. The related_context shows examples like mcp_example.rs and permission_modes.rs that use these types. While the examples appear updated, any external code relying on the old import paths will break. This change affects core protocol handling and requires thorough testing to ensure all type references are correctly updated.
Code Suggestion:
use crate::config::options::IFlowOptions;
use crate::message::types::{Message, PermissionMode};Evidence: path:examples/advanced/mcp_example.rs, path:examples/advanced/permission_modes.rs
| if let Some(id) = data.get("id").and_then(|v| v.as_u64()) | ||
| && id == request_id as u64 { | ||
| return Ok(data); | ||
| } |
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P2 | Confidence: High
This change converts nested if-let statements to the more concise && pattern, which is a Rust 1.56+ feature. While this improves code readability, it requires a minimum Rust version that supports let-chains. The change is syntactically correct and maintains the same logic flow, but should be verified to work with the project's supported Rust version.
| "plan" => { | ||
| if let Some(entries) = update.get("entries").and_then(|v| v.as_array()) { | ||
| let entries: Vec<super::types::PlanEntry> = entries | ||
| let entries: Vec<crate::message::types::PlanEntry> = entries |
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P2 | Confidence: High
This change updates the type path from super::types::PlanEntry to crate::message::types::PlanEntry, reflecting the new module structure. While this is correct for the new architecture, it demonstrates the pervasive nature of the refactoring. All such path updates should be verified to ensure they point to the correct locations in the new module hierarchy.
| use crate::logger::MessageLogger; | ||
| use crate::message::types::{Message, PlanEntry, PlanPriority, PlanStatus}; |
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P2 | Confidence: High
The new acp_handler.rs module properly uses the updated import paths, demonstrating good adherence to the new architecture. This suggests the refactoring was systematically applied. The separation of ACP protocol handling from the main client logic improves modularity and testability.
| uuid = { version = "1.18", features = ["v4"] } | ||
| url = "2.5" | ||
| tokio-tungstenite = "0.28" | ||
| futures-util = { version = "0.3.31", features = ["compat"] } |
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P2 | Confidence: Medium
The addition of futures-util dependency suggests the new modular architecture may be using more advanced async patterns. This is a new direct dependency that wasn't present before. While likely necessary for the refactored code, it should be verified that this dependency is actually used and that its version aligns with the project's other async dependencies (tokio, async-trait).
| use iflow_cli_sdk_rust::message::types::{PlanEntry, PlanPriority, PlanStatus}; | ||
| use iflow_cli_sdk_rust::{LoggerConfig, Message, MessageLogger}; |
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P2 | Confidence: Medium
The example updates show the new import structure is being used, which is positive. However, the mixing of direct imports (LoggerConfig, Message, MessageLogger) and module-qualified imports (message::types::{...}) suggests some inconsistency in the public API structure. All examples should consistently use either direct exports or module-qualified imports.
Code Suggestion:
// Either all direct
use iflow_cli_sdk_rust::{LoggerConfig, Message, MessageLogger, PlanEntry, PlanPriority, PlanStatus};
// Or all module-qualified
use iflow_cli_sdk_rust::message::types::{PlanEntry, PlanPriority, PlanStatus};
use iflow_cli_sdk_rust::logger::{LoggerConfig, MessageLogger};
use iflow_cli_sdk_rust::Message;Added a new section in `Cargo.toml` to include end-to-end tests located in `tests/e2e/e2e_tests.rs`. This addition aims to improve the testing coverage by including high-level integration scenarios.
This change adds functionality to send a `TaskFinish` message that includes the actual stop reason after processing a prompt response. This provides more detailed information about why a task has finished, which can be useful for debugging and logging purposes.
Added configurations for new examples in `Cargo.toml`: - explore_api - query_with_config - test_response - websocket_mcp This allows these examples to be run using cargo commands directly.
This change upgrades the `agent-client-protocol` dependency from version `0.5.0` to `0.7.0`. Additionally, code adjustments were made to align with changes in the new version, particularly in handling content blocks and session updates. These modifications ensure compatibility and leverage any improvements or fixes introduced in the newer version.
This commit refactors and modularizes the source directory structure by splitting large files into smaller modules. Specifically:
src/message/.src/config/*) and connection handling (src/connection/*).src/protocol/*) to handle ACP protocol logic.Additionally, some files were renamed or moved around within tests directories to better align with their respective feature areas.
These changes aim to improve readability, maintainability, and ease of navigation through the codebase.