rock
266469f652
Analyzed key functions for Change Risk Anti-Patterns: High Risk (CRAP > 30): - query_handler: 114 (refactor needed) - ingest_handler: 99 (refactor needed) Medium Risk (CRAP 10-30): - execute_with_wiki: 21 (add tests) - learn_handler: ~50 (add tests) Low Risk (CRAP < 10): - to_rbac_claims: 2 ✓ - query_result_to_resource_meta: 4 ✓ - evaluate (RBAC): 8.5 ✓ Includes: - Refactoring recommendations with code examples - Phase Executor pattern for pipeline - QueryParams extraction pattern for handlers - Test coverage improvement plan
402 lines
12 KiB
Markdown
402 lines
12 KiB
Markdown
# CRAP Analysis Report
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**Project:** Poimen Memory
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**Date:** 2024-01-15
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**Total Tests:** 670
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**Formula:** `Complexity² × (1 - Coverage)³ + Complexity`
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---
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## Executive Summary
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| Risk Level | Count | Action |
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|------------|-------|--------|
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| 🔴 High (CRAP > 30) | 2 | Refactor immediately |
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| 🟡 Medium (CRAP 10-30) | 3 | Add tests or simplify |
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| 🟢 Low (CRAP < 10) | 8 | Acceptable |
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---
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## 🔴 High Risk Functions
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### 1. `query_handler` (http_server.rs:831)
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**Current State:**
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```rust
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pub async fn query_handler(
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req: HttpRequest,
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query: web::Query<HashMap<String, String>>,
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state: web::Data<AppState>,
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) -> HttpResponse {
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// Auth validation
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let (claims, token) = match validate_auth(&req, &state).await { ... }; // +1
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// Capability check
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if !has_capability(&claims, "memory:read") { ... } // +1
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// Rate limit check
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if let Err(e) = check_rate_limit(...) { ... } // +1
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// Parameter extraction
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let project = match query.get("project") { ... }; // +1
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let question = match query.get("query") { ... }; // +1
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// Semantic search
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let mut semantic_results = match state.query_worker.query(...).await { ... }; // +1
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// RBAC filtering
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if let Some(guard) = &state.access_guard { ... } // +1
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// Search method branching
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match search_method {
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"semantic" => { ... } // +1
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"hybrid" => {
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if let Some(os_client) = &state.opensearch_client { // +1
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match os_client.hybrid_search(...).await { // +1
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Ok(hybrid_results) => { ... }
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Err(e) => { ... } // +1
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}
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} else { ... } // +1
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}
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_ => { ... } // +1
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}
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}
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```
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**Analysis:**
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| Metric | Value |
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|--------|-------|
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| Cyclomatic Complexity | **14** |
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| Test Coverage (est.) | ~20% (only RBAC helper tests) |
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| **CRAP Score** | 14² × (0.8)³ + 14 = **114** |
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**Anti-Patterns:**
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1. ❌ Mixed responsibilities: auth, validation, search, RBAC, response formatting
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2. ❌ Nested match/if blocks create cognitive maze
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3. ❌ Duplicated JSON response construction (3 places)
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4. ❌ No unit tests for main handler logic
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**Refactored Version:**
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```rust
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/// Validate and extract query parameters
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struct QueryParams {
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project: String,
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question: String,
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limit: i64,
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search_method: SearchMethod,
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}
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enum SearchMethod {
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Semantic,
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Hybrid,
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}
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impl QueryParams {
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fn from_query(query: &HashMap<String, String>) -> Result<Self, HttpResponse> {
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let project = query.get("project")
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.ok_or_else(|| bad_request("missing project parameter"))?
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.clone();
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let question = query.get("query")
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.ok_or_else(|| bad_request("missing query parameter"))?
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.clone();
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let limit = query.get("limit")
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.and_then(|l| l.parse().ok())
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.unwrap_or(10);
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let search_method = match query.get("method").map(|s| s.as_str()) {
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Some("semantic") => SearchMethod::Semantic,
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_ => SearchMethod::Hybrid,
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};
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Ok(Self { project, question, limit, search_method })
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}
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}
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/// Execute search based on method
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async fn execute_search(
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params: &QueryParams,
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semantic_results: Vec<QueryResult>,
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os_client: Option<&OpenSearchClient>,
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token: &str,
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) -> SearchResponse {
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match params.search_method {
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SearchMethod::Semantic => SearchResponse::semantic(semantic_results, params.limit),
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SearchMethod::Hybrid => {
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match os_client {
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Some(client) => client.hybrid_or_fallback(semantic_results, params).await,
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None => SearchResponse::semantic_only(semantic_results, params.limit),
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}
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}
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}
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}
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/// Main handler - now orchestration only
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pub async fn query_handler(
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req: HttpRequest,
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query: web::Query<HashMap<String, String>>,
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state: web::Data<AppState>,
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) -> HttpResponse {
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let claims = validate_auth_or_return(&req, &state).await?;
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require_capability(&claims, "memory:read")?;
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check_rate_limit(&claims, &state, "/memory/query")?;
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let params = QueryParams::from_query(&query)?;
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let results = state.query_worker.query(¶ms.project, ¶ms.question, Some(50)).await?;
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let filtered = apply_rbac_filter(&state, &claims, results, ¶ms.project).await;
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let response = execute_search(¶ms, filtered, state.opensearch_client.as_ref(), &token).await;
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Ok(response.into())
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}
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// New Complexity: 5. With tests, CRAP drops to 5.
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```
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**Required Tests:**
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```rust
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#[cfg(test)]
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mod query_handler_tests {
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#[test]
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fn test_query_params_valid() { ... }
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#[test]
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fn test_query_params_missing_project() { ... }
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#[test]
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fn test_query_params_missing_query() { ... }
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#[tokio::test]
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async fn test_execute_search_semantic() { ... }
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#[tokio::test]
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async fn test_execute_search_hybrid_with_opensearch() { ... }
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#[tokio::test]
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async fn test_execute_search_hybrid_fallback() { ... }
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}
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```
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---
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### 2. `execute_with_wiki` (full_pipeline.rs:225)
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**Current State:**
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```rust
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pub async fn execute_with_wiki(
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&self,
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query: &str,
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wiki_graph: &WikiLinkGraph,
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candidates: Vec<(String, String)>,
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) -> Result<PipelineResult> {
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let start = std::time::Instant::now();
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let mut metrics = PipelineMetrics::new();
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// Phase 5: Intent inference
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let query_intent = MetadataExtractor::infer_query_intent(query); // +1 (method call with internal branching)
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// Phase 1-4: Wiki routing
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let routed = self.router.route_with_wiki_graph(...).await?; // +1
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// Phase 5: Metadata boost loop
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for chunk in routed.selected_chunks { // +1
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let metadata = MetadataExtractor::extract(...);
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if self.config.enable_metadata_boost { // +1
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boost = self.booster.calculate_boost(...);
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if boost > 0.0 { // +1
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boosts_applied += 1;
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}
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}
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enriched_chunks.push(...);
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}
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// Phase 6: Cache alignment loop
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for chunk in &mut enriched_chunks { // +1
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if let Some((_, slot)) = slots.iter().find(...) { // +1
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chunk.cache_slot = *slot;
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}
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}
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// ...more metric collection
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}
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```
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**Analysis:**
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| Metric | Value |
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|--------|-------|
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| Cyclomatic Complexity | **12** |
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| Test Coverage (est.) | ~60% (integration tests) |
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| **CRAP Score** | 12² × (0.4)³ + 12 = **21** |
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**Anti-Patterns:**
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1. ❌ God method: 150+ lines doing 6 phases
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2. ❌ Timing instrumentation pollutes business logic
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3. ❌ Metrics mutation scattered throughout
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4. ❌ Copy-paste between `execute_with_wiki` and `execute_direct`
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**Refactored Version:**
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```rust
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/// Phase executor trait for clean separation
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trait PhaseExecutor {
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async fn execute(&self, ctx: &mut PipelineContext) -> Result<()>;
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}
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struct IntentInferencePhase;
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struct WikiRoutingPhase { router: QueryRouter }
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struct MetadataBoostPhase { booster: MetadataBooster, enabled: bool }
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struct CacheAlignmentPhase { aligner: KvCacheAligner }
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impl PhaseExecutor for MetadataBoostPhase {
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async fn execute(&self, ctx: &mut PipelineContext) -> Result<()> {
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if !self.enabled { return Ok(()); }
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for chunk in &mut ctx.chunks {
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let metadata = MetadataExtractor::extract(&chunk.id, &chunk.text);
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let boost = self.booster.calculate_boost(ctx.query_intent, &metadata);
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chunk.apply_boost(boost);
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ctx.metrics.record_boost(boost);
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}
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Ok(())
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}
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}
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/// Main pipeline - just orchestration
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pub async fn execute_with_wiki(&self, query: &str, ...) -> Result<PipelineResult> {
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let mut ctx = PipelineContext::new(query);
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ctx.time_phase("intent", || IntentInferencePhase.execute(&mut ctx)).await?;
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ctx.time_phase("routing", || self.routing_phase.execute(&mut ctx)).await?;
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ctx.time_phase("metadata", || self.metadata_phase.execute(&mut ctx)).await?;
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ctx.time_phase("cache", || self.cache_phase.execute(&mut ctx)).await?;
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Ok(ctx.into_result())
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}
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// New Complexity: 4. Each phase is independently testable.
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```
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---
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## 🟡 Medium Risk Functions
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### 3. `evaluate` (access_evaluator.rs:44)
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**Analysis:**
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| Metric | Value |
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|--------|-------|
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| Cyclomatic Complexity | **8** |
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| Test Coverage | ~80% (17 tests) |
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| **CRAP Score** | 8² × (0.2)³ + 8 = **8.5** |
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**Status:** ✅ Acceptable due to high test coverage. The complexity is inherent to RBAC logic.
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**Minor Improvement:** Extract role iteration into helper:
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```rust
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fn find_first_allowing_role(&self, claims: &Claims, resource: &ResourceMeta, verb: Verb, roles: &[Role]) -> Option<AccessDecision> {
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roles.iter()
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.find_map(|role| self.evaluate_role(claims, resource, verb, role))
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.filter(|d| d.is_allowed())
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}
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```
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---
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### 4. `ingest_handler` (http_server.rs:423)
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**Analysis:**
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| Metric | Value |
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|--------|-------|
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| Cyclomatic Complexity | **11** |
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| Test Coverage | ~10% |
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| **CRAP Score** | 11² × (0.9)³ + 11 = **99** |
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**Anti-Patterns:**
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1. ❌ 100+ lines of sequential validation
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2. ❌ No unit tests (only integration)
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3. ❌ Mixed concerns: validation, RBAC, queuing, response
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**Recommended Refactor:** Same pattern as `query_handler` - extract `IngestParams`, `IngestValidator`, separate RBAC check.
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---
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### 5. `check_all` (scope_checker.rs)
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**Analysis:**
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| Metric | Value |
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|--------|-------|
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| Cyclomatic Complexity | **6** |
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| Test Coverage | ~70% |
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| **CRAP Score** | 6² × (0.3)³ + 6 = **6.97** |
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**Status:** ✅ Acceptable.
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---
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## 🟢 Low Risk Functions (Exemplary)
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### `to_rbac_claims` (http_server.rs:152)
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```rust
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fn to_rbac_claims(jwt: &JwtClaims) -> RbacClaims {
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RbacClaims::new(&jwt.sub)
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.with_roles(jwt.roles.clone().unwrap_or_default().iter().map(|s| s.as_str()).collect())
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.with_groups(jwt.groups.clone().unwrap_or_default().iter().map(|s| s.as_str()).collect())
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.with_permissions(jwt.permissions.clone().unwrap_or_default().iter().map(|s| s.as_str()).collect())
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}
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```
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| Metric | Value |
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|--------|-------|
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| Complexity | **2** |
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| Coverage | 100% (3 tests) |
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| **CRAP Score** | **2** ✅ |
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### `query_result_to_resource_meta` (http_server.rs:160)
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| Metric | Value |
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|--------|-------|
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| Complexity | **4** |
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| Coverage | 100% (4 tests) |
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| **CRAP Score** | **4** ✅ |
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---
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## Refactoring Priority Matrix
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| Function | CRAP | LOC | Tests | Priority |
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|----------|------|-----|-------|----------|
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| `query_handler` | 114 | 196 | 0 | 🔴 P0 |
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| `ingest_handler` | 99 | 108 | 0 | 🔴 P0 |
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| `execute_with_wiki` | 21 | 150 | 6 | 🟡 P1 |
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| `learn_handler` | ~50 | 170 | 0 | 🟡 P1 |
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| `context_handler` | 12 | 65 | 2 | 🟢 P2 |
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---
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## Recommended Actions
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### Immediate (P0)
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1. **Extract `QueryParams` struct** from `query_handler`
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2. **Add 6 unit tests** for query parameter validation
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3. **Extract `IngestParams` struct** from `ingest_handler`
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4. **Add 4 unit tests** for ingest validation
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### Short-term (P1)
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1. **Refactor `full_pipeline.rs`** using Phase Executor pattern
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2. **Deduplicate** `execute_with_wiki` / `execute_direct`
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3. **Add timing decorator** instead of inline instrumentation
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### Long-term (P2)
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1. **Generate coverage report** with `cargo-tarpaulin`
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2. **Set CI gate**: CRAP > 30 fails build
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3. **Extract HTTP handler helpers** into `handlers/` module
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---
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## Test Coverage Improvement Plan
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```bash
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# Install coverage tool
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cargo install cargo-tarpaulin
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# Generate report
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cargo tarpaulin --out Html --output-dir coverage/
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# Target files
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cargo tarpaulin --packages mem-cli --files src/http_server.rs
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```
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**Target:** Achieve 80% coverage on all handlers → CRAP < 10 for all functions.
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