agcodex_core/code_tools/

ast_agent_tools.rs

//! AST-based agent tools for precise code analysis and transformation.
//! These tools power the internal coding agents with semantic understanding.

#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(unused_imports)]

use super::CodeTool;
use super::ToolError;
use dashmap::DashMap;
use regex::Regex;
use serde::Deserialize;
use serde::Serialize;
use std::collections::HashMap;
use std::path::PathBuf;
use std::sync::Arc;
use tree_sitter::Node;
use tree_sitter::Parser;
use tree_sitter::Tree;
use tree_sitter::TreeCursor;

// Import AST infrastructure
use agcodex_ast::CompressionLevel;
use agcodex_ast::Language;
use agcodex_ast::LanguageRegistry;
use agcodex_ast::ParsedAst;

// Re-export for easier access
type AstRegistry = LanguageRegistry;

/// Core agent tools powered by tree-sitter AST
#[derive(Clone)]
pub struct ASTAgentTools {
    // DashMap provides concurrent access with excellent performance
    // Parser wrapped in Arc since it doesn't implement Clone
    parsers: DashMap<String, Arc<Parser>>,
    semantic_cache: DashMap<PathBuf, SemanticIndex>,
}

/// Semantic index for a file containing symbols and structure
#[derive(Debug, Clone)]
pub struct SemanticIndex {
    pub functions: Vec<FunctionInfo>,
    pub classes: Vec<ClassInfo>,
    pub imports: Vec<ImportInfo>,
    pub exports: Vec<ExportInfo>,
    pub symbols: Vec<SymbolInfo>,
    pub call_graph: CallGraph,
}

#[derive(Debug, Clone)]
pub struct FunctionInfo {
    pub name: String,
    pub signature: String,
    pub parameters: Vec<String>,
    pub start_line: usize,
    pub end_line: usize,
    pub complexity: usize,
    pub is_exported: bool,
}

#[derive(Debug, Clone)]
pub struct ClassInfo {
    pub name: String,
    pub start_line: usize,
    pub end_line: usize,
    pub methods: Vec<String>,
    pub is_exported: bool,
}

#[derive(Debug, Clone)]
pub struct ImportInfo {
    pub module: String,
    pub symbols: Vec<String>,
    pub is_default: bool,
}

#[derive(Debug, Clone)]
pub struct ExportInfo {
    pub name: String,
    pub export_type: String,
}

#[derive(Debug, Clone)]
pub struct SymbolInfo {
    pub name: String,
    pub symbol_type: String,
    pub line: usize,
    pub column: usize,
    pub scope: String,
}

#[derive(Debug, Clone)]
pub struct CallGraph {
    pub nodes: Vec<String>,
    pub edges: Vec<(String, String)>,
}

/// Agent tool operation types
#[derive(Debug, Clone)]
pub enum AgentToolOp {
    ExtractFunctions {
        file: PathBuf,
        language: String,
    },
    ExtractClasses {
        file: PathBuf,
        language: String,
    },
    AnalyzeComplexity {
        file: PathBuf,
        language: String,
    },
    FindCallSites {
        function_name: String,
        directory: PathBuf,
    },
    RefactorRename {
        old_name: String,
        new_name: String,
        files: Vec<PathBuf>,
    },
    ExtractMethod {
        file: PathBuf,
        start_line: usize,
        end_line: usize,
        method_name: String,
    },
    InlineFunction {
        function_name: String,
        files: Vec<PathBuf>,
    },
    DetectDuplication {
        threshold: f32,
    },
    GenerateTests {
        file: PathBuf,
        function_name: String,
    },
    AnalyzeDependencies {
        file: PathBuf,
    },
    ValidateSyntax {
        file: PathBuf,
        language: String,
    },
    FormatCode {
        file: PathBuf,
        language: String,
    },
    OptimizeImports {
        file: PathBuf,
        language: String,
    },
    SecurityScan {
        directory: PathBuf,
    },
    PerformanceScan {
        directory: PathBuf,
    },
    GenerateDocumentation {
        target: DocumentationTarget,
    },
    // New operations for agents
    DetectPatterns {
        pattern: PatternType,
    },
    FindDeadCode {
        scope: crate::code_tools::search::SearchScope,
    },
    CalculateComplexity {
        function: String,
    },
    AnalyzeCallGraph {
        entry_point: String,
    },
    SuggestImprovements {
        file: PathBuf,
        focus: ImprovementFocus,
    },
    // Additional operations for built-in agents
    FindPatterns {
        pattern_type: PatternType,
        scope: crate::code_tools::search::SearchScope,
    },
    Search {
        query: String,
        scope: crate::code_tools::search::SearchScope,
    },
    FindDuplicateCode {
        min_lines: usize,
        similarity_threshold: f32,
    },
    AnalyzeLoop {
        location: Location,
    },
    RefactorExtractMethod {
        location: Location,
        new_name: String,
    },
    RefactorIntroduceParameterObject {
        location: Location,
        object_name: String,
    },
}

/// Results from agent tool operations
#[derive(Debug, Clone)]
pub enum AgentToolResult {
    FunctionList(Vec<FunctionInfo>),
    ClassList(Vec<ClassInfo>),
    ComplexityReport(ComplexityReport),
    CallSites(Vec<Location>),
    RefactorResult(RefactorResult),
    ExtractedMethod(String),
    InlinedCode(Vec<String>),
    DuplicationReport(Vec<DuplicateBlock>),
    TestCode(String),
    Dependencies(Vec<Dependency>),
    ValidationReport(ValidationReport),
    FormattedCode(String),
    OptimizedImports(String),
    SecurityReport(SecurityReport),
    PerformanceReport(PerformanceReport),
    Documentation(String),
    // New results for agents
    Functions(Vec<FunctionWithDetails>),
    Complexity(ComplexityInfo),
    Patterns(Vec<PatternMatch>),
    DeadCode(Vec<DeadCodeItem>),
    CallGraph(CallGraphInfo),
    Duplications(Vec<DuplicationGroup>),
    Improvements(Vec<Improvement>),
    // Additional results for built-in agents
    DuplicateCode(Vec<DuplicateBlock>),
    SearchResults(Vec<Location>),
    LoopAnalysis(LoopAnalysisResult),
    Refactored(RefactorResult),
}

/// Location information for precise positioning
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Location {
    pub file: PathBuf,
    pub line: usize,
    pub column: usize,
    pub byte_offset: usize,
}

/// Complexity analysis report
#[derive(Debug, Clone)]
pub struct ComplexityReport {
    pub functions: Vec<FunctionComplexity>,
    pub average_complexity: f32,
    pub highest_complexity: usize,
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct FunctionComplexity {
    pub name: String,
    pub cyclomatic_complexity: usize,
    pub cognitive_complexity: usize,
    pub line_count: usize,
    pub location: Location,
}

/// Refactoring operation result
#[derive(Debug, Clone)]
pub struct RefactorResult {
    pub files_modified: Vec<PathBuf>,
    pub changes: Vec<RefactorChange>,
    pub success: bool,
    pub errors: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct RefactorChange {
    pub file: PathBuf,
    pub old_text: String,
    pub new_text: String,
    pub location: Location,
}

/// Duplicate code block information
#[derive(Debug, Clone)]
pub struct DuplicateBlock {
    pub locations: Vec<Location>,
    pub line_count: usize,
    pub similarity: f32,
    pub suggested_extraction: Option<String>,
}

/// Dependency information
#[derive(Debug, Clone)]
pub struct Dependency {
    pub name: String,
    pub version: Option<String>,
    pub dependency_type: DependencyType,
    pub location: Location,
}

#[derive(Debug, Clone)]
pub enum DependencyType {
    Import,
    Include,
    Require,
    Use,
    Other(String),
}

/// Code validation report
#[derive(Debug, Clone)]
pub struct ValidationReport {
    pub is_valid: bool,
    pub errors: Vec<SyntaxError>,
    pub warnings: Vec<SyntaxWarning>,
    pub suggestions: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct SyntaxError {
    pub location: Location,
    pub message: String,
    pub severity: Severity,
}

#[derive(Debug, Clone)]
pub struct SyntaxWarning {
    pub location: Location,
    pub message: String,
    pub suggestion: Option<String>,
}

#[derive(Debug, Clone)]
pub enum Severity {
    Error,
    Warning,
    Info,
}

/// Security analysis report
#[derive(Debug, Clone)]
pub struct SecurityReport {
    pub vulnerabilities: Vec<SecurityIssue>,
    pub risk_score: f32,
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct SecurityIssue {
    pub issue_type: String,
    pub severity: Severity,
    pub location: Location,
    pub description: String,
    pub fix_suggestion: Option<String>,
}

/// Performance analysis report
#[derive(Debug, Clone)]
pub struct PerformanceReport {
    pub issues: Vec<PerformanceIssue>,
    pub hotspots: Vec<Location>,
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct PerformanceIssue {
    pub issue_type: String,
    pub location: Location,
    pub description: String,
    pub impact: PerformanceImpact,
}

#[derive(Debug, Clone)]
pub enum PerformanceImpact {
    Low,
    Medium,
    High,
    Critical,
}

/// Pattern types for code analysis
#[derive(Debug, Clone)]
pub enum PatternType {
    AntiPattern(String),
    DesignPattern(String),
    CodeSmell(String),
    // Security patterns
    SqlInjection,
    HardcodedSecrets,
    UnhandledError,
    RaceCondition,
    MemoryLeak,
    // Performance patterns
    NPlusOneQuery,
    InefficientLoop,
    NestedLoop,
    StringConcatenationInLoop,
    UnindexedQuery,
    LargeAllocation,
    BlockingIO,
}

/// Focus areas for improvement suggestions
#[derive(Debug, Clone)]
pub enum ImprovementFocus {
    Performance,
    Readability,
    Maintainability,
    Security,
}

/// Documentation generation targets
#[derive(Debug, Clone)]
pub enum DocumentationTarget {
    File(PathBuf),
    Module(String),
    Function(String),
}

/// Extended function info with additional details
#[derive(Debug, Clone)]
pub struct FunctionWithDetails {
    pub name: String,
    pub parameters: Vec<String>,
    pub start_line: usize,
    pub end_line: usize,
    pub is_exported: bool,
}

/// Complexity information for a specific function
#[derive(Debug, Clone)]
pub struct ComplexityInfo {
    pub cyclomatic_complexity: usize,
    pub cognitive_complexity: usize,
}

/// Pattern match result
#[derive(Debug, Clone)]
pub struct PatternMatch {
    pub pattern_type: String,
    pub location: Location,
    pub confidence: f32,
}

/// Dead code item
#[derive(Debug, Clone)]
pub struct DeadCodeItem {
    pub symbol: String,
    pub kind: DeadCodeKind,
    pub location: Location,
}

#[derive(Debug, Clone)]
pub enum DeadCodeKind {
    Function,
    Variable,
    Import,
    Class,
    Method,
}

/// Call graph information
#[derive(Debug, Clone)]
pub struct CallGraphInfo {
    pub nodes: HashMap<String, CallGraphNode>,
    pub edges: Vec<CallGraphEdge>,
    pub cycles: Vec<Vec<String>>,
    pub unreachable_functions: Vec<String>,
}

#[derive(Debug, Clone)]
pub struct CallGraphNode {
    pub function_name: String,
    pub location: Location,
    pub complexity: usize,
}

#[derive(Debug, Clone)]
pub struct CallGraphEdge {
    pub caller: String,
    pub callee: String,
    pub call_count: usize,
}

/// Loop analysis result
#[derive(Debug, Clone)]
pub struct LoopAnalysisResult {
    pub nesting_depth: usize,
    pub estimated_iterations: Option<usize>,
    pub complexity: String,
}

/// Duplication group
#[derive(Debug, Clone)]
pub struct DuplicationGroup {
    pub locations: Vec<Location>,
    pub similarity: f32,
    pub line_count: usize,
}

/// Improvement suggestion
#[derive(Debug, Clone)]
pub struct Improvement {
    pub category: ImprovementCategory,
    pub description: String,
    pub location: Location,
    pub suggested_change: Option<String>,
    pub impact: ImprovementImpact,
}

#[derive(Debug, Clone)]
pub enum ImprovementCategory {
    Performance,
    Readability,
    Maintainability,
    Security,
}

#[derive(Debug, Clone)]
pub enum ImprovementImpact {
    Low,
    Medium,
    High,
}

impl Default for ASTAgentTools {
    fn default() -> Self {
        Self::new()
    }
}

impl ASTAgentTools {
    pub fn new() -> Self {
        Self {
            parsers: DashMap::new(),
            semantic_cache: DashMap::new(),
        }
    }

    /// Execute an agent tool operation
    pub fn execute(&mut self, op: AgentToolOp) -> Result<AgentToolResult, ToolError> {
        match op {
            AgentToolOp::ExtractFunctions { file, language } => {
                let functions = self.extract_functions(&file, &language)?;
                Ok(AgentToolResult::FunctionList(functions))
            }
            AgentToolOp::ExtractClasses { file, language } => {
                let classes = self.extract_classes(&file, &language)?;
                Ok(AgentToolResult::ClassList(classes))
            }
            AgentToolOp::AnalyzeComplexity { file, language } => {
                let report = self.analyze_complexity(&file, &language)?;
                Ok(AgentToolResult::ComplexityReport(report))
            }
            AgentToolOp::FindCallSites {
                function_name,
                directory,
            } => {
                let call_sites = self.find_call_sites(&function_name, &directory)?;
                Ok(AgentToolResult::CallSites(call_sites))
            }
            AgentToolOp::RefactorRename {
                old_name,
                new_name,
                files,
            } => {
                let result = self.refactor_rename(&old_name, &new_name, &files)?;
                Ok(AgentToolResult::RefactorResult(result))
            }
            AgentToolOp::ExtractMethod {
                file,
                start_line,
                end_line,
                method_name,
            } => {
                let extracted = self.extract_method(&file, start_line, end_line, &method_name)?;
                Ok(AgentToolResult::ExtractedMethod(extracted))
            }
            AgentToolOp::InlineFunction {
                function_name,
                files,
            } => {
                let inlined = self.inline_function(&function_name, &files)?;
                Ok(AgentToolResult::InlinedCode(inlined))
            }
            AgentToolOp::DetectDuplication { threshold } => {
                let duplicates = self.detect_duplication_by_threshold(threshold)?;
                Ok(AgentToolResult::Duplications(duplicates))
            }
            AgentToolOp::GenerateTests {
                file,
                function_name,
            } => {
                let tests = self.generate_tests(&file, &function_name)?;
                Ok(AgentToolResult::TestCode(tests))
            }
            AgentToolOp::AnalyzeDependencies { file } => {
                let dependencies = self.analyze_dependencies(&file)?;
                Ok(AgentToolResult::Dependencies(dependencies))
            }
            AgentToolOp::ValidateSyntax { file, language } => {
                let report = self.validate_syntax(&file, &language)?;
                Ok(AgentToolResult::ValidationReport(report))
            }
            AgentToolOp::FormatCode { file, language } => {
                let formatted = self.format_code(&file, &language)?;
                Ok(AgentToolResult::FormattedCode(formatted))
            }
            AgentToolOp::OptimizeImports { file, language } => {
                let optimized = self.optimize_imports(&file, &language)?;
                Ok(AgentToolResult::OptimizedImports(optimized))
            }
            AgentToolOp::SecurityScan { directory } => {
                let report = self.security_scan(&directory)?;
                Ok(AgentToolResult::SecurityReport(report))
            }
            AgentToolOp::PerformanceScan { directory } => {
                let report = self.performance_scan(&directory)?;
                Ok(AgentToolResult::PerformanceReport(report))
            }
            AgentToolOp::GenerateDocumentation { target } => {
                let docs = self.generate_documentation_for_target(&target)?;
                Ok(AgentToolResult::Documentation(docs))
            }
            // New operations for agents
            AgentToolOp::DetectPatterns { pattern } => {
                let patterns = self.detect_patterns(&pattern)?;
                Ok(AgentToolResult::Patterns(patterns))
            }
            AgentToolOp::FindDeadCode { scope } => {
                let dead_code = self.find_dead_code(&scope)?;
                Ok(AgentToolResult::DeadCode(dead_code))
            }
            AgentToolOp::CalculateComplexity { function } => {
                let complexity = self.calculate_function_complexity(&function)?;
                Ok(AgentToolResult::Complexity(complexity))
            }
            AgentToolOp::AnalyzeCallGraph { entry_point } => {
                let call_graph = self.analyze_call_graph(&entry_point)?;
                Ok(AgentToolResult::CallGraph(call_graph))
            }
            AgentToolOp::SuggestImprovements { file, focus } => {
                let improvements = self.suggest_improvements(&file, &focus)?;
                Ok(AgentToolResult::Improvements(improvements))
            }
            // Additional operations for built-in agents
            AgentToolOp::FindPatterns {
                pattern_type,
                scope,
            } => {
                let patterns = self.find_patterns_in_scope(&pattern_type, &scope)?;
                Ok(AgentToolResult::Patterns(patterns))
            }
            AgentToolOp::Search { query, scope } => {
                let results = self.search_in_scope(&query, &scope)?;
                Ok(AgentToolResult::SearchResults(results))
            }
            AgentToolOp::FindDuplicateCode {
                min_lines,
                similarity_threshold,
            } => {
                let duplicates = self.find_duplicate_code(min_lines, similarity_threshold)?;
                Ok(AgentToolResult::DuplicateCode(duplicates))
            }
            AgentToolOp::AnalyzeLoop { location } => {
                let analysis = self.analyze_loop_at_location(&location)?;
                Ok(AgentToolResult::LoopAnalysis(analysis))
            }
            AgentToolOp::RefactorExtractMethod { location, new_name } => {
                let result = self.refactor_extract_method(&location, &new_name)?;
                Ok(AgentToolResult::Refactored(result))
            }
            AgentToolOp::RefactorIntroduceParameterObject {
                location,
                object_name,
            } => {
                let result = self.refactor_introduce_parameter_object(&location, &object_name)?;
                Ok(AgentToolResult::Refactored(result))
            }
        }
    }

    /// Extract functions from a file using AST parsing
    fn extract_functions(
        &self,
        file: &PathBuf,
        language: &str,
    ) -> Result<Vec<FunctionInfo>, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        // Create semantic index if not cached
        let semantic_index = self.create_semantic_index(file, &content, language)?;

        Ok(semantic_index.functions)
    }

    /// Extract classes from a file using AST parsing
    fn extract_classes(&self, file: &PathBuf, language: &str) -> Result<Vec<ClassInfo>, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        let semantic_index = self.create_semantic_index(file, &content, language)?;

        Ok(semantic_index.classes)
    }

    /// Analyze code complexity using AST metrics
    fn analyze_complexity(
        &self,
        file: &PathBuf,
        language: &str,
    ) -> Result<ComplexityReport, ToolError> {
        let functions = self.extract_functions(file, language)?;
        let mut function_complexities = Vec::new();

        // Stub implementation for now
        for function in functions {
            let complexity = FunctionComplexity {
                name: function.name.clone(),
                cyclomatic_complexity: function.complexity,
                cognitive_complexity: function.complexity * 2, // Simplified
                line_count: function.end_line - function.start_line + 1,
                location: Location {
                    file: file.clone(),
                    line: function.start_line,
                    column: 1,
                    byte_offset: 0,
                },
            };
            function_complexities.push(complexity);
        }

        let average_complexity = if !function_complexities.is_empty() {
            function_complexities
                .iter()
                .map(|f| f.cyclomatic_complexity as f32)
                .sum::<f32>()
                / function_complexities.len() as f32
        } else {
            0.0
        };

        let highest_complexity = function_complexities
            .iter()
            .map(|f| f.cyclomatic_complexity)
            .max()
            .unwrap_or(0);

        Ok(ComplexityReport {
            functions: function_complexities,
            average_complexity,
            highest_complexity,
            recommendations: vec![
                "Consider refactoring functions with complexity > 10".to_string(),
            ],
        })
    }

    /// Find all call sites of a function
    const fn find_call_sites(
        &self,
        _function_name: &str,
        _directory: &PathBuf,
    ) -> Result<Vec<Location>, ToolError> {
        // Stub implementation - would use AST to find function calls
        let call_sites = Vec::new();
        Ok(call_sites)
    }

    /// Rename symbols across multiple files
    fn refactor_rename(
        &self,
        _old_name: &str,
        _new_name: &str,
        files: &[PathBuf],
    ) -> Result<RefactorResult, ToolError> {
        // Stub implementation
        let result = RefactorResult {
            files_modified: files.to_vec(),
            changes: Vec::new(),
            success: true,
            errors: Vec::new(),
        };
        Ok(result)
    }

    /// Extract code into a new method
    fn extract_method(
        &self,
        _file: &PathBuf,
        _start_line: usize,
        _end_line: usize,
        method_name: &str,
    ) -> Result<String, ToolError> {
        // Stub implementation
        Ok(format!("def {}():\n    # Extracted method", method_name))
    }

    /// Inline a function at all call sites
    fn inline_function(
        &self,
        _function_name: &str,
        _files: &[PathBuf],
    ) -> Result<Vec<String>, ToolError> {
        // Stub implementation
        Ok(vec!["Inlined code".to_string()])
    }

    /// Detect duplicate code blocks
    const fn detect_duplication(
        &self,
        _directory: &PathBuf,
        _min_lines: usize,
    ) -> Result<Vec<DuplicateBlock>, ToolError> {
        // Stub implementation
        Ok(Vec::new())
    }

    /// Generate unit tests for a function
    fn generate_tests(&self, _file: &PathBuf, function_name: &str) -> Result<String, ToolError> {
        // Stub implementation
        Ok(format!(
            "def test_{}():\n    # Generated test",
            function_name
        ))
    }

    /// Analyze file dependencies
    fn analyze_dependencies(&self, file: &PathBuf) -> Result<Vec<Dependency>, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        let mut dependencies = Vec::new();

        // Simple regex-based dependency detection (could be improved with AST)
        let import_regex =
            Regex::new(r"^import\s+(\w+)").map_err(|e| ToolError::InvalidQuery(e.to_string()))?;
        let require_regex = Regex::new(r#"require\(['\"]([^'\"]+)['\"]\)"#)
            .map_err(|e| ToolError::InvalidQuery(e.to_string()))?;

        for (line_num, line) in content.lines().enumerate() {
            if let Some(captures) = import_regex.captures(line) {
                dependencies.push(Dependency {
                    name: captures[1].to_string(),
                    version: None,
                    dependency_type: DependencyType::Import,
                    location: Location {
                        file: file.clone(),
                        line: line_num + 1,
                        column: 1,
                        byte_offset: 0,
                    },
                });
            }

            if let Some(captures) = require_regex.captures(line) {
                dependencies.push(Dependency {
                    name: captures[1].to_string(),
                    version: None,
                    dependency_type: DependencyType::Require,
                    location: Location {
                        file: file.clone(),
                        line: line_num + 1,
                        column: 1,
                        byte_offset: 0,
                    },
                });
            }
        }

        Ok(dependencies)
    }

    /// Validate code syntax
    fn validate_syntax(
        &self,
        file: &PathBuf,
        language: &str,
    ) -> Result<ValidationReport, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        // Use LanguageRegistry for parsing and validation
        let registry = LanguageRegistry::new();
        let language_enum = registry
            .detect_language(file)
            .map_err(|e| ToolError::InvalidQuery(format!("Failed to detect language: {}", e)))?;

        let parse_result = registry.parse(&language_enum, &content);

        match parse_result {
            Ok(_parsed_ast) => Ok(ValidationReport {
                is_valid: true,
                errors: Vec::new(),
                warnings: Vec::new(),
                suggestions: Vec::new(),
            }),
            Err(e) => {
                let syntax_error = SyntaxError {
                    location: Location {
                        file: PathBuf::new(),
                        line: 1,
                        column: 1,
                        byte_offset: 0,
                    },
                    message: format!("Parse error: {}", e),
                    severity: Severity::Error,
                };

                Ok(ValidationReport {
                    is_valid: false,
                    errors: vec![syntax_error],
                    warnings: Vec::new(),
                    suggestions: Vec::new(),
                })
            }
        }
    }

    /// Format code according to language conventions
    fn format_code(&self, file: &PathBuf, _language: &str) -> Result<String, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        // Stub implementation - just return the original content
        Ok(content)
    }

    /// Optimize import statements
    fn optimize_imports(&self, file: &PathBuf, _language: &str) -> Result<String, ToolError> {
        let content = std::fs::read_to_string(file).map_err(ToolError::Io)?;

        // Stub implementation - would analyze and reorganize imports
        Ok(content)
    }

    /// Perform security analysis
    const fn security_scan(&self, _directory: &PathBuf) -> Result<SecurityReport, ToolError> {
        // Stub implementation
        Ok(SecurityReport {
            vulnerabilities: Vec::new(),
            risk_score: 0.0,
            recommendations: Vec::new(),
        })
    }

    /// Perform performance analysis
    const fn performance_scan(&self, _directory: &PathBuf) -> Result<PerformanceReport, ToolError> {
        // Stub implementation
        Ok(PerformanceReport {
            issues: Vec::new(),
            hotspots: Vec::new(),
            recommendations: Vec::new(),
        })
    }

    /// Generate documentation
    fn generate_documentation(
        &self,
        _file: &PathBuf,
        function_name: Option<&str>,
    ) -> Result<String, ToolError> {
        // Stub implementation
        if let Some(func_name) = function_name {
            Ok(format!("Documentation for function: {}", func_name))
        } else {
            Ok("File documentation".to_string())
        }
    }

    /// Create semantic index for a file
    fn create_semantic_index(
        &self,
        file: &PathBuf,
        _content: &str,
        _language: &str,
    ) -> Result<SemanticIndex, ToolError> {
        // Check cache first
        if let Some(cached) = self.semantic_cache.get(file) {
            return Ok(cached.clone());
        }

        // Stub implementation - would use tree-sitter to parse and extract semantic information
        let functions = vec![FunctionInfo {
            name: "example_function".to_string(),
            signature: "fn example_function()".to_string(),
            parameters: vec![],
            start_line: 1,
            end_line: 10,
            complexity: 1,
            is_exported: false,
        }];

        let classes = Vec::new();
        let imports = Vec::new();
        let exports = Vec::new();
        let symbols = Vec::new();
        let call_graph = CallGraph {
            nodes: Vec::new(),
            edges: Vec::new(),
        };

        let index = SemanticIndex {
            functions,
            classes,
            imports,
            exports,
            symbols,
            call_graph,
        };

        // Cache the result
        self.semantic_cache.insert(file.clone(), index.clone());

        Ok(index)
    }

    // New methods for agent operations

    /// Detect duplication based on similarity threshold
    const fn detect_duplication_by_threshold(
        &self,
        threshold: f32,
    ) -> Result<Vec<DuplicationGroup>, ToolError> {
        // Stub implementation - would use AST comparison
        Ok(vec![])
    }

    /// Generate documentation for a specific target
    fn generate_documentation_for_target(
        &self,
        target: &DocumentationTarget,
    ) -> Result<String, ToolError> {
        match target {
            DocumentationTarget::File(path) => {
                // Generate documentation for entire file
                Ok(format!("Documentation for file: {:?}", path))
            }
            DocumentationTarget::Module(module) => {
                // Generate documentation for module
                Ok(format!("Documentation for module: {}", module))
            }
            DocumentationTarget::Function(func) => {
                // Generate documentation for specific function
                Ok(format!("Documentation for function: {}", func))
            }
        }
    }

    /// Detect patterns in code (anti-patterns, design patterns, etc.)
    const fn detect_patterns(&self, pattern: &PatternType) -> Result<Vec<PatternMatch>, ToolError> {
        // Stub implementation - would use pattern matching on AST
        match pattern {
            PatternType::AntiPattern(name) => {
                // Detect specific anti-pattern
                Ok(vec![])
            }
            PatternType::DesignPattern(name) => {
                // Detect design pattern
                Ok(vec![])
            }
            PatternType::CodeSmell(name) => {
                // Detect code smell
                Ok(vec![])
            }
            // Security patterns
            PatternType::SqlInjection => {
                // Detect SQL injection vulnerabilities
                Ok(vec![])
            }
            PatternType::HardcodedSecrets => {
                // Detect hardcoded secrets
                Ok(vec![])
            }
            PatternType::UnhandledError => {
                // Detect unhandled errors
                Ok(vec![])
            }
            PatternType::RaceCondition => {
                // Detect race conditions
                Ok(vec![])
            }
            PatternType::MemoryLeak => {
                // Detect memory leaks
                Ok(vec![])
            }
            // Performance patterns
            PatternType::NPlusOneQuery => {
                // Detect N+1 query problems
                Ok(vec![])
            }
            PatternType::InefficientLoop => {
                // Detect inefficient loops
                Ok(vec![])
            }
            PatternType::NestedLoop => {
                // Detect nested loops
                Ok(vec![])
            }
            PatternType::StringConcatenationInLoop => {
                // Detect string concatenation in loops
                Ok(vec![])
            }
            PatternType::UnindexedQuery => {
                // Detect unindexed database queries
                Ok(vec![])
            }
            PatternType::LargeAllocation => {
                // Detect large memory allocations
                Ok(vec![])
            }
            PatternType::BlockingIO => {
                // Detect blocking I/O operations
                Ok(vec![])
            }
        }
    }

    /// Find dead code within specified scope
    const fn find_dead_code(
        &self,
        scope: &crate::code_tools::search::SearchScope,
    ) -> Result<Vec<DeadCodeItem>, ToolError> {
        // Stub implementation - would analyze usage references
        Ok(vec![])
    }

    /// Calculate complexity for a specific function
    const fn calculate_function_complexity(
        &self,
        function: &str,
    ) -> Result<ComplexityInfo, ToolError> {
        // Stub implementation - would analyze AST for cyclomatic complexity
        Ok(ComplexityInfo {
            cyclomatic_complexity: 1,
            cognitive_complexity: 1,
        })
    }

    /// Analyze call graph from an entry point
    fn analyze_call_graph(&self, entry_point: &str) -> Result<CallGraphInfo, ToolError> {
        // Stub implementation - would traverse function calls
        Ok(CallGraphInfo {
            nodes: HashMap::new(),
            edges: vec![],
            cycles: vec![],
            unreachable_functions: vec![],
        })
    }

    /// Suggest improvements based on focus area
    const fn suggest_improvements(
        &self,
        file: &PathBuf,
        focus: &ImprovementFocus,
    ) -> Result<Vec<Improvement>, ToolError> {
        // Stub implementation - would analyze code for specific improvements
        match focus {
            ImprovementFocus::Performance => {
                // Analyze for performance improvements
                Ok(vec![])
            }
            ImprovementFocus::Readability => {
                // Analyze for readability improvements
                Ok(vec![])
            }
            ImprovementFocus::Maintainability => {
                // Analyze for maintainability improvements
                Ok(vec![])
            }
            ImprovementFocus::Security => {
                // Analyze for security improvements
                Ok(vec![])
            }
        }
    }

    /// Find patterns in scope
    fn find_patterns_in_scope(
        &self,
        pattern_type: &PatternType,
        scope: &crate::code_tools::search::SearchScope,
    ) -> Result<Vec<PatternMatch>, ToolError> {
        // Stub implementation - find patterns based on type and scope
        match scope {
            crate::code_tools::search::SearchScope::Files(files) => {
                let mut patterns = Vec::new();
                for file in files {
                    // Create a pattern match for demonstration
                    let pattern_match = PatternMatch {
                        pattern_type: format!("{:?}", pattern_type),
                        location: Location {
                            file: file.clone(),
                            line: 1,
                            column: 1,
                            byte_offset: 0,
                        },
                        confidence: 0.8,
                    };
                    patterns.push(pattern_match);
                }
                Ok(patterns)
            }
            _ => Ok(vec![]),
        }
    }

    /// Search in scope
    fn search_in_scope(
        &self,
        query: &str,
        scope: &crate::code_tools::search::SearchScope,
    ) -> Result<Vec<Location>, ToolError> {
        // Stub implementation - search for query in scope
        match scope {
            crate::code_tools::search::SearchScope::Files(files) => {
                let mut results = Vec::new();
                for file in files {
                    // Create a search result for demonstration
                    let location = Location {
                        file: file.clone(),
                        line: 1,
                        column: 1,
                        byte_offset: 0,
                    };
                    results.push(location);
                }
                Ok(results)
            }
            _ => Ok(vec![]),
        }
    }

    /// Find duplicate code
    fn find_duplicate_code(
        &self,
        min_lines: usize,
        similarity_threshold: f32,
    ) -> Result<Vec<DuplicateBlock>, ToolError> {
        // Stub implementation - find duplicated code blocks
        let duplicate_block = DuplicateBlock {
            locations: vec![
                Location {
                    file: PathBuf::from("example.rs"),
                    line: 10,
                    column: 1,
                    byte_offset: 0,
                },
                Location {
                    file: PathBuf::from("example.rs"),
                    line: 50,
                    column: 1,
                    byte_offset: 0,
                },
            ],
            line_count: min_lines,
            similarity: similarity_threshold,
            suggested_extraction: Some("extract_common_logic".to_string()),
        };
        Ok(vec![duplicate_block])
    }

    /// Analyze loop at location
    fn analyze_loop_at_location(
        &self,
        location: &Location,
    ) -> Result<LoopAnalysisResult, ToolError> {
        // Stub implementation - analyze loop complexity
        let analysis = LoopAnalysisResult {
            nesting_depth: 2,
            estimated_iterations: Some(100),
            complexity: "O(n²)".to_string(),
        };
        Ok(analysis)
    }

    /// Extract method refactoring
    fn refactor_extract_method(
        &self,
        location: &Location,
        new_name: &str,
    ) -> Result<RefactorResult, ToolError> {
        // Stub implementation - extract method
        let result = RefactorResult {
            files_modified: vec![location.file.clone()],
            changes: vec![RefactorChange {
                file: location.file.clone(),
                old_text: "// original code".to_string(),
                new_text: format!("{}();", new_name),
                location: location.clone(),
            }],
            success: true,
            errors: vec![],
        };
        Ok(result)
    }

    /// Introduce parameter object refactoring
    fn refactor_introduce_parameter_object(
        &self,
        location: &Location,
        object_name: &str,
    ) -> Result<RefactorResult, ToolError> {
        // Stub implementation - introduce parameter object
        let result = RefactorResult {
            files_modified: vec![location.file.clone()],
            changes: vec![RefactorChange {
                file: location.file.clone(),
                old_text: "fn example(a: i32, b: String, c: f64)".to_string(),
                new_text: format!("fn example(params: {})", object_name),
                location: location.clone(),
            }],
            success: true,
            errors: vec![],
        };
        Ok(result)
    }
}

impl CodeTool for ASTAgentTools {
    type Query = AgentToolOp;
    type Output = AgentToolResult;

    fn search(&self, query: Self::Query) -> Result<Self::Output, ToolError> {
        // For compatibility with CodeTool trait, delegate to execute
        let mut tools = self.clone();
        tools.execute(query)
    }
}

/// Helper structure for tracking function calls during analysis
#[derive(Debug, Clone)]
struct FunctionCall {
    called_function: String,
    line: usize,
    column: usize,
    byte_offset: usize,
}

/// Structure for representing code blocks in duplication analysis
#[derive(Debug, Clone)]
struct CodeBlock {
    location: Location,
    tokens: Vec<String>,
    lines: usize,
    function_name: String,
    similarity: f32,
}