soma-core 2.0.0

use crate::edit_control::ModifiableEdit;
use crate::classification::EditClassificationSystem;
use crate::classification::types::EditCategory;
use std::collections::HashMap;
use serde::{Serialize, Deserialize};

/// ConditionalLogicSystem - Test-based Edit Application
/// 
/// Implements conditional edit application with:
/// - Test-gated execution (apply only if tests pass)
/// - Classification-based conditions
/// - Conditional chains (if X succeeds, then apply Y)
/// - Session management
/// - Execution history tracking
#[derive(Debug)]
pub struct ConditionalLogicSystem {
    conditions: HashMap<String, Condition>,
    chains: Vec<ConditionalChain>,
    test_gate_system: TestGateSystem,
    execution_history: Vec<ExecutionRecord>,
    active_sessions: HashMap<String, ConditionalSession>,
}

impl ConditionalLogicSystem {
    /// Create a new ConditionalLogicSystem
    pub fn new() -> Self {
        Self {
            conditions: HashMap::new(),
            chains: Vec::new(),
            test_gate_system: TestGateSystem::new(),
            execution_history: Vec::new(),
            active_sessions: HashMap::new(),
        }
    }

    /// Create a conditional session for managing related edits
    pub fn create_session(&mut self, name: String) -> String {
        let session_id = format!("session_{}", chrono::Utc::now().timestamp());
        let session = ConditionalSession::new(session_id.clone(), name);
        self.active_sessions.insert(session_id.clone(), session);
        session_id
    }

    /// Add a condition to the system
    pub fn add_condition(&mut self, condition: Condition) -> Result<String, String> {
        let condition_id = condition.id.clone();
        
        // Validate condition
        if condition.condition_type == ConditionType::Custom && condition.custom_script.is_none() {
            return Err("Custom conditions require a custom script".to_string());
        }

        self.conditions.insert(condition_id.clone(), condition);
        Ok(condition_id)
    }

    /// Create a conditional chain
    pub fn create_chain(&mut self, chain: ConditionalChain) -> Result<String, String> {
        // Validate chain dependencies
        for link in &chain.links {
            if !self.conditions.contains_key(&link.condition_id) {
                return Err(format!("Condition {} not found", link.condition_id));
            }
        }

        let chain_id = chain.id.clone();
        self.chains.push(chain);
        Ok(chain_id)
    }

    /// Apply edit with conditional logic
    pub fn apply_conditionally(
        &mut self, 
        edit: &ModifiableEdit,
        conditions: &[String],
        session_id: Option<String>
    ) -> Result<ConditionalApplicationResult, String> {
        let start_time = std::time::Instant::now();
        let edit_id = self.generate_edit_id(edit);
        
        // Create execution context
        let context = ExecutionContext::new(edit.clone(), session_id.clone());

        // Evaluate all conditions
        let mut condition_results = Vec::new();
        for condition_id in conditions {
            if let Some(condition) = self.conditions.get(condition_id).cloned() {
                let result = self.evaluate_condition(&condition, edit, &context)?;
                condition_results.push((condition_id.clone(), result.clone()));
                
                if !result.passed {
                    return Ok(ConditionalApplicationResult {
                        success: false,
                        applied: false,
                        condition_results,
                        execution_time: start_time.elapsed(),
                        failure_reason: Some(result.message),
                        edit_id: edit_id.clone(),
                    });
                }
            } else {
                return Err(format!("Condition {} not found", condition_id));
            }
        }

        // All conditions passed - apply the edit
        let application_result = self.apply_edit_safely(edit, &context)?;

        // Record execution
        let execution_record = ExecutionRecord {
            edit_id: edit_id.clone(),
            session_id: session_id.clone(),
            conditions_evaluated: conditions.to_vec(),
            condition_results: condition_results.clone(),
            applied: application_result,
            timestamp: chrono::Utc::now(),
            execution_time: start_time.elapsed(),
        };
        
        self.execution_history.push(execution_record);

        Ok(ConditionalApplicationResult {
            success: true,
            applied: application_result,
            condition_results,
            execution_time: start_time.elapsed(),
            failure_reason: None,
            edit_id,
        })
    }

    /// Execute a conditional chain
    pub fn execute_chain(
        &mut self,
        chain_id: &str,
        session_id: Option<String>
    ) -> Result<ChainExecutionResult, String> {
        let chain = self.chains.iter()
            .find(|c| c.id == chain_id)
            .ok_or_else(|| format!("Chain {} not found", chain_id))?
            .clone();

        let mut results = Vec::new();

        for link in &chain.links {
            let condition = self.conditions.get(&link.condition_id)
                .ok_or_else(|| format!("Condition {} not found", link.condition_id))?
                .clone();

            // Evaluate condition for each edit in the link
            let mut link_results = Vec::new();
            for edit in &link.edits {
                let exec_context = ExecutionContext::new(edit.clone(), session_id.clone());
                let condition_result = self.evaluate_condition(&condition, edit, &exec_context)?;
                let edit_id = self.generate_edit_id(edit);
                
                if condition_result.passed {
                    // Apply edit if condition passes
                    let applied = self.apply_edit_safely(edit, &exec_context)?;
                    link_results.push(LinkExecutionResult {
                        edit_id,
                        condition_passed: true,
                        applied,
                        message: condition_result.message,
                    });
                } else {
                    link_results.push(LinkExecutionResult {
                        edit_id,
                        condition_passed: false,
                        applied: false,
                        message: condition_result.message,
                    });

                    // Handle failure strategy
                    match link.failure_strategy {
                        ChainFailureStrategy::StopChain => {
                            return Ok(ChainExecutionResult {
                                chain_id: chain_id.to_string(),
                                completed: false,
                                link_results: vec![(link.id.clone(), link_results)],
                                total_edits_applied: results.iter().map(|(_, r): &(String, Vec<LinkExecutionResult>)| r.len()).sum(),
                                failure_reason: Some(format!("Chain stopped at link {} due to condition failure", link.id)),
                            });
                        }
                        ChainFailureStrategy::SkipLink => {
                            break; // Skip remaining edits in this link
                        }
                        ChainFailureStrategy::Continue => {
                            // Continue with next edit
                        }
                    }
                }
            }
            results.push((link.id.clone(), link_results));
        }

        Ok(ChainExecutionResult {
            chain_id: chain_id.to_string(),
            completed: true,
            link_results: results.clone(),
            total_edits_applied: results.iter().map(|(_, r): &(String, Vec<LinkExecutionResult>)| r.iter().filter(|lr| lr.applied).count()).sum(),
            failure_reason: None,
        })
    }

    /// Generate a unique edit ID from the edit content
    fn generate_edit_id(&self, edit: &ModifiableEdit) -> String {
        format!("{}:{}:{}", 
            edit.base_edit.file, 
            edit.base_edit.line_range.0, 
            edit.base_edit.line_range.1
        )
    }

    /// Evaluate a condition against an edit
    fn evaluate_condition(
        &mut self,
        condition: &Condition,
        edit: &ModifiableEdit,
        context: &ExecutionContext
    ) -> Result<ConditionResult, String> {
        match &condition.condition_type {
            ConditionType::TestPassing => {
                self.test_gate_system.evaluate_tests(&condition.test_config, edit, context)
            }
            ConditionType::ClassificationBased => {
                self.evaluate_classification_condition(&condition.classification_criteria, edit)
            }
            ConditionType::AlwaysPass => {
                Ok(ConditionResult {
                    passed: true,
                    message: "Always pass condition".to_string(),
                    details: None,
                })
            }
            _ => {
                Ok(ConditionResult {
                    passed: true,
                    message: "Condition type not implemented yet".to_string(),
                    details: None,
                })
            }
        }
    }

    /// Evaluate classification-based conditions
    fn evaluate_classification_condition(
        &self,
        criteria: &Option<ClassificationCriteria>,
        edit: &ModifiableEdit
    ) -> Result<ConditionResult, String> {
        let criteria = criteria.as_ref()
            .ok_or_else(|| "Classification criteria required".to_string())?;

        let classifier = EditClassificationSystem::new();
        let classification = classifier.classify_edit(edit)
            .map_err(|e| format!("Classification failed: {}", e))?;

        let passed = match criteria {
            ClassificationCriteria::MinConfidence(threshold) => {
                classification.classification_confidence >= *threshold
            }
            ClassificationCriteria::RequiredCategory(category) => {
                classification.category == *category
            }
            ClassificationCriteria::MaxRiskScore(max_risk) => {
                classification.risk_assessment.overall_score <= *max_risk
            }
        };

        Ok(ConditionResult {
            passed,
            message: if passed {
                format!("Classification criteria met: {:?}", criteria)
            } else {
                format!("Classification criteria not met: {:?}", criteria)
            },
            details: Some(format!("Category: {:?}, Confidence: {:.2}, Risk: {:.2}", 
                classification.category, 
                classification.classification_confidence,
                classification.risk_assessment.overall_score
            )),
        })
    }

    /// Safely apply an edit with proper error handling
    fn apply_edit_safely(
        &self,
        edit: &ModifiableEdit,
        _context: &ExecutionContext
    ) -> Result<bool, String> {
        // Check if edit is still valid
        if edit.compute_final_code().is_empty() {
            return Ok(false);
        }

        // In real implementation, would integrate with StagedApplicationSystem
        // For now, simulate successful application
        Ok(true)
    }

    /// Get execution history for analysis
    pub fn get_execution_history(&self) -> &[ExecutionRecord] {
        &self.execution_history
    }

    /// Get active sessions
    pub fn get_active_sessions(&self) -> &HashMap<String, ConditionalSession> {
        &self.active_sessions
    }

    /// Get condition success rate
    pub fn get_condition_success_rate(&self, condition_id: &str) -> f64 {
        let total = self.execution_history.iter()
            .filter(|record| record.conditions_evaluated.contains(&condition_id.to_string()))
            .count();
            
        if total == 0 {
            return 0.0;
        }

        let successful = self.execution_history.iter()
            .filter(|record| {
                record.conditions_evaluated.contains(&condition_id.to_string()) &&
                record.condition_results.iter()
                    .any(|(id, result)| id == condition_id && result.passed)
            })
            .count();

        successful as f64 / total as f64
    }
}

/// Condition definition
#[derive(Debug, Clone)]
pub struct Condition {
    pub id: String,
    pub name: String,
    pub description: String,
    pub condition_type: ConditionType,
    pub test_config: Option<TestConfiguration>,
    pub classification_criteria: Option<ClassificationCriteria>,
    pub custom_script: Option<String>,
    pub timeout_seconds: u64,
}

impl Condition {
    pub fn new_test_condition(id: String, name: String, test_config: TestConfiguration) -> Self {
        Self {
            id,
            name,
            description: "Test-based condition".to_string(),
            condition_type: ConditionType::TestPassing,
            test_config: Some(test_config),
            classification_criteria: None,
            custom_script: None,
            timeout_seconds: 300, // 5 minutes default
        }
    }

    pub fn new_classification_condition(
        id: String, 
        name: String, 
        criteria: ClassificationCriteria
    ) -> Self {
        Self {
            id,
            name,
            description: "Classification-based condition".to_string(),
            condition_type: ConditionType::ClassificationBased,
            test_config: None,
            classification_criteria: Some(criteria),
            custom_script: None,
            timeout_seconds: 60,
        }
    }

    pub fn new_always_pass(id: String, name: String) -> Self {
        Self {
            id,
            name,
            description: "Always pass condition for testing".to_string(),
            condition_type: ConditionType::AlwaysPass,
            test_config: None,
            classification_criteria: None,
            custom_script: None,
            timeout_seconds: 1,
        }
    }
}

/// Types of conditions
#[derive(Debug, Clone, PartialEq)]
pub enum ConditionType {
    TestPassing,
    ClassificationBased,
    AlwaysPass, // For testing purposes
    Custom,
}

/// Classification-based criteria
#[derive(Debug, Clone)]
pub enum ClassificationCriteria {
    MinConfidence(f64),
    RequiredCategory(EditCategory),
    MaxRiskScore(f64),
}

/// Test configuration
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TestConfiguration {
    pub test_command: String,
    pub test_args: Vec<String>,
    pub working_directory: Option<String>,
    pub required_exit_code: i32,
    pub timeout_seconds: u64,
    pub required_patterns: Vec<String>, // Patterns that must appear in output
    pub forbidden_patterns: Vec<String>, // Patterns that must not appear
}

impl TestConfiguration {
    pub fn new(test_command: String) -> Self {
        Self {
            test_command,
            test_args: Vec::new(),
            working_directory: None,
            required_exit_code: 0,
            timeout_seconds: 300,
            required_patterns: Vec::new(),
            forbidden_patterns: Vec::new(),
        }
    }

    pub fn cargo_test() -> Self {
        Self::new("cargo".to_string())
            .with_args(vec!["test".to_string()])
            .with_timeout(600) // 10 minutes for cargo test
    }

    pub fn with_args(mut self, args: Vec<String>) -> Self {
        self.test_args = args;
        self
    }

    pub fn with_timeout(mut self, seconds: u64) -> Self {
        self.timeout_seconds = seconds;
        self
    }

    pub fn with_required_pattern(mut self, pattern: String) -> Self {
        self.required_patterns.push(pattern);
        self
    }
}

/// Conditional chain for dependent edit sequences
#[derive(Debug, Clone)]
pub struct ConditionalChain {
    pub id: String,
    pub name: String,
    pub description: String,
    pub links: Vec<ChainLink>,
    pub failure_strategy: ChainFailureStrategy,
}

impl ConditionalChain {
    pub fn new(id: String, name: String) -> Self {
        Self {
            id,
            name,
            description: String::new(),
            links: Vec::new(),
            failure_strategy: ChainFailureStrategy::StopChain,
        }
    }

    pub fn add_link(&mut self, link: ChainLink) {
        self.links.push(link);
    }
}

/// Link in a conditional chain
#[derive(Debug, Clone)]
pub struct ChainLink {
    pub id: String,
    pub condition_id: String,
    pub edits: Vec<ModifiableEdit>,
    pub failure_strategy: ChainFailureStrategy,
}

/// Strategy for handling failures in chains
#[derive(Debug, Clone)]
pub enum ChainFailureStrategy {
    StopChain,   // Stop the entire chain on failure
    SkipLink,    // Skip this link and continue with next
    Continue,    // Continue with remaining edits in link
}

/// Test gate system for automated test execution
#[derive(Debug)]
pub struct TestGateSystem {
    active_tests: HashMap<String, TestExecution>,
}

impl TestGateSystem {
    pub fn new() -> Self {
        Self {
            active_tests: HashMap::new(),
        }
    }

    pub fn evaluate_tests(
        &mut self,
        config: &Option<TestConfiguration>,
        _edit: &ModifiableEdit,
        _context: &ExecutionContext
    ) -> Result<ConditionResult, String> {
        let test_config = config.as_ref()
            .ok_or_else(|| "Test configuration required for test conditions".to_string())?;

        let execution_id = format!("test_{}", chrono::Utc::now().timestamp());
        let start_time = std::time::Instant::now();

        // Execute the test command
        let mut command = std::process::Command::new(&test_config.test_command);
        command.args(&test_config.test_args);
        
        if let Some(ref workdir) = test_config.working_directory {
            command.current_dir(workdir);
        }

        command.stdout(std::process::Stdio::piped());
        command.stderr(std::process::Stdio::piped());

        let output = command.output()
            .map_err(|e| format!("Failed to execute test command: {}", e))?;

        let execution_time = start_time.elapsed();
        let stdout = String::from_utf8_lossy(&output.stdout);
        let stderr = String::from_utf8_lossy(&output.stderr);

        // Check exit code
        let exit_code_passed = output.status.code().unwrap_or(-1) == test_config.required_exit_code;

        // Check required patterns
        let patterns_passed = test_config.required_patterns.iter()
            .all(|pattern| stdout.contains(pattern) || stderr.contains(pattern));

        // Check forbidden patterns
        let no_forbidden_patterns = test_config.forbidden_patterns.iter()
            .all(|pattern| !stdout.contains(pattern) && !stderr.contains(pattern));

        // Check timeout
        let timeout_passed = execution_time.as_secs() <= test_config.timeout_seconds;

        let passed = exit_code_passed && patterns_passed && no_forbidden_patterns && timeout_passed;

        let test_execution = TestExecution {
            id: execution_id.clone(),
            config: test_config.clone(),
            exit_code: output.status.code().unwrap_or(-1),
            stdout: stdout.to_string(),
            stderr: stderr.to_string(),
            execution_time,
            passed,
        };

        self.active_tests.insert(execution_id, test_execution);

        Ok(ConditionResult {
            passed,
            message: if passed {
                "All tests passed successfully".to_string()
            } else {
                format!(
                    "Tests failed - Exit code: {}, Patterns passed: {}, No forbidden patterns: {}, Timeout passed: {}",
                    exit_code_passed, patterns_passed, no_forbidden_patterns, timeout_passed
                )
            },
            details: Some(format!("stdout: {}\nstderr: {}", stdout, stderr)),
        })
    }
}

/// Result types
#[derive(Debug, Clone)]
pub struct ConditionResult {
    pub passed: bool,
    pub message: String,
    pub details: Option<String>,
}

#[derive(Debug)]
pub struct ConditionalApplicationResult {
    pub success: bool,
    pub applied: bool,
    pub condition_results: Vec<(String, ConditionResult)>,
    pub execution_time: std::time::Duration,
    pub failure_reason: Option<String>,
    pub edit_id: String,
}

#[derive(Debug)]
pub struct ChainExecutionResult {
    pub chain_id: String,
    pub completed: bool,
    pub link_results: Vec<(String, Vec<LinkExecutionResult>)>,
    pub total_edits_applied: usize,
    pub failure_reason: Option<String>,
}

#[derive(Debug, Clone)]
pub struct LinkExecutionResult {
    pub edit_id: String,
    pub condition_passed: bool,
    pub applied: bool,
    pub message: String,
}

/// Execution context
#[derive(Debug, Clone)]
pub struct ExecutionContext {
    pub edit: ModifiableEdit,
    pub session_id: Option<String>,
    pub timestamp: chrono::DateTime<chrono::Utc>,
}

impl ExecutionContext {
    pub fn new(edit: ModifiableEdit, session_id: Option<String>) -> Self {
        Self {
            edit,
            session_id,
            timestamp: chrono::Utc::now(),
        }
    }
}

/// Session management
#[derive(Debug, Clone)]
pub struct ConditionalSession {
    pub id: String,
    pub name: String,
    pub created_at: chrono::DateTime<chrono::Utc>,
    pub edits_applied: Vec<String>,
    pub conditions_used: Vec<String>,
    pub chains_executed: Vec<String>,
}

impl ConditionalSession {
    pub fn new(id: String, name: String) -> Self {
        Self {
            id,
            name,
            created_at: chrono::Utc::now(),
            edits_applied: Vec::new(),
            conditions_used: Vec::new(),
            chains_executed: Vec::new(),
        }
    }
}

/// Execution records for history tracking
#[derive(Debug, Clone)]
pub struct ExecutionRecord {
    pub edit_id: String,
    pub session_id: Option<String>,
    pub conditions_evaluated: Vec<String>,
    pub condition_results: Vec<(String, ConditionResult)>,
    pub applied: bool,
    pub timestamp: chrono::DateTime<chrono::Utc>,
    pub execution_time: std::time::Duration,
}

/// Test execution tracking
#[derive(Debug, Clone)]
pub struct TestExecution {
    pub id: String,
    pub config: TestConfiguration,
    pub exit_code: i32,
    pub stdout: String,
    pub stderr: String,
    pub execution_time: std::time::Duration,
    pub passed: bool,
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::agents::gpt4_agent::ProposedEdit;
    use crate::classification::types::{SafeType, ConfidenceLevel};

    fn create_test_edit() -> ModifiableEdit {
        let proposed_edit = ProposedEdit {
            file: "test.rs".to_string(),
            line_range: (10, 15),
            new_code: "fn test() { println!(\"Hello\"); }".to_string(),
            reason: "Test edit".to_string(),
            confidence: 0.9,
        };

        ModifiableEdit::from_proposed_edit(proposed_edit)
    }

    #[test]
    fn test_conditional_system_creation() {
        let system = ConditionalLogicSystem::new();
        assert_eq!(system.conditions.len(), 0);
        assert_eq!(system.chains.len(), 0);
    }

    #[test]
    fn test_session_creation() {
        let mut system = ConditionalLogicSystem::new();
        let session_id = system.create_session("test_session".to_string());
        
        assert!(system.active_sessions.contains_key(&session_id));
        assert_eq!(system.active_sessions[&session_id].name, "test_session");
    }

    #[test]
    fn test_condition_creation() {
        let mut system = ConditionalLogicSystem::new();
        
        let test_config = TestConfiguration::cargo_test();
        let condition = Condition::new_test_condition(
            "test_condition".to_string(),
            "Test Condition".to_string(),
            test_config
        );
        
        let condition_id = system.add_condition(condition).unwrap();
        assert_eq!(condition_id, "test_condition");
        assert!(system.conditions.contains_key(&condition_id));
    }

    #[test]
    fn test_classification_condition() {
        let mut system = ConditionalLogicSystem::new();
        
        let condition = Condition::new_classification_condition(
            "safe_edits_only".to_string(),
            "Safe Edits Only".to_string(),
            ClassificationCriteria::RequiredCategory(EditCategory::Safe { 
                subcategory: SafeType::Documentation,
                confidence_level: ConfidenceLevel::High,
            })
        );
        
        let condition_id = system.add_condition(condition).unwrap();
        assert!(system.conditions.contains_key(&condition_id));
    }

    #[test]
    fn test_always_pass_condition() {
        let mut system = ConditionalLogicSystem::new();
        let edit = create_test_edit();
        
        let condition = Condition::new_always_pass(
            "always_pass".to_string(),
            "Always Pass".to_string()
        );
        
        let condition_id = system.add_condition(condition).unwrap();
        
        let result = system.apply_conditionally(
            &edit,
            &[condition_id],
            None
        ).unwrap();
        
        assert!(result.success);
        assert!(result.applied);
        assert_eq!(result.condition_results.len(), 1);
        assert!(result.condition_results[0].1.passed);
    }

    #[test]
    fn test_chain_creation() {
        let mut system = ConditionalLogicSystem::new();
        
        // Add a test condition first
        let condition = Condition::new_always_pass(
            "test_condition".to_string(),
            "Test Condition".to_string()
        );
        system.add_condition(condition).unwrap();
        
        let mut chain = ConditionalChain::new(
            "test_chain".to_string(),
            "Test Chain".to_string()
        );
        
        chain.add_link(ChainLink {
            id: "link1".to_string(),
            condition_id: "test_condition".to_string(),
            edits: Vec::new(),
            failure_strategy: ChainFailureStrategy::StopChain,
        });
        
        let chain_id = system.create_chain(chain).unwrap();
        assert_eq!(chain_id, "test_chain");
        assert_eq!(system.chains.len(), 1);
    }

    #[test]
    fn test_test_configuration() {
        let config = TestConfiguration::cargo_test()
            .with_timeout(300)
            .with_required_pattern("test result: ok".to_string());
            
        assert_eq!(config.test_command, "cargo");
        assert_eq!(config.test_args, vec!["test"]);
        assert_eq!(config.timeout_seconds, 300);
        assert_eq!(config.required_patterns, vec!["test result: ok"]);
    }

    #[test]
    fn test_success_rate_calculation() {
        let system = ConditionalLogicSystem::new();
        
        // No executions yet
        let rate = system.get_condition_success_rate("nonexistent");
        assert_eq!(rate, 0.0);
    }

    #[test]
    fn test_edit_id_generation() {
        let system = ConditionalLogicSystem::new();
        let edit = create_test_edit();
        
        let edit_id = system.generate_edit_id(&edit);
        assert_eq!(edit_id, "test.rs:10:15");
    }
}