// Plugin validation and testing framework
//
// This module provides comprehensive validation and testing capabilities for optimizer plugins,
// including functionality tests, performance tests, convergence validation, and compliance checks.

#[allow(dead_code)]
use super::core::*;
use super::sdk::*;
use scirs2_core::ndarray::Array1;
use scirs2_core::numeric::Float;
use std::collections::HashMap;
use std::fmt::Debug;
use std::time::{Duration, Instant};

/// Type alias for objective function
type ObjectiveFn<A> = Box<dyn Fn(&Array1<A>) -> A + Send + Sync>;

/// Type alias for gradient function
type GradientFn<A> = Box<dyn Fn(&Array1<A>) -> Array1<A> + Send + Sync>;

/// Comprehensive plugin validation framework
#[derive(Debug)]
pub struct PluginValidationFramework<A: Float> {
    /// Validation configuration
    config: ValidationConfig,
    /// Test suites
    test_suites: Vec<Box<dyn ValidationTestSuite<A>>>,
    /// Compliance checkers
    compliance_checkers: Vec<Box<dyn ComplianceChecker>>,
    /// Performance benchmarker
    benchmarker: PerformanceBenchmarker<A>,
    /// Results storage
    results: ValidationResults<A>,
}

/// Validation configuration
#[derive(Debug, Clone)]
pub struct ValidationConfig {
    /// Enable strict validation
    pub strict_mode: bool,
    /// Numerical tolerance
    pub numerical_tolerance: f64,
    /// Performance tolerance (percentage)
    pub performance_tolerance: f64,
    /// Maximum test duration
    pub max_test_duration: Duration,
    /// Enable memory leak detection
    pub check_memory_leaks: bool,
    /// Enable thread safety testing
    pub check_thread_safety: bool,
    /// Enable convergence testing
    pub check_convergence: bool,
    /// Random seed for reproducible tests
    pub random_seed: u64,
    /// Test data sizes
    pub test_data_sizes: Vec<usize>,
}

/// Validation test suite trait
pub trait ValidationTestSuite<A: Float>: Debug {
    /// Run all tests in the suite
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult;

    /// Get suite name
    fn name(&self) -> &str;

    /// Get suite description
    fn description(&self) -> &str;

    /// Get test count
    fn test_count(&self) -> usize;
}

/// Individual test suite result
#[derive(Debug, Clone)]
pub struct SuiteResult {
    /// Suite name
    pub suite_name: String,
    /// Test results
    pub test_results: Vec<TestResult>,
    /// Overall suite passed
    pub suite_passed: bool,
    /// Execution time
    pub execution_time: Duration,
    /// Summary statistics
    pub summary: TestSummary,
}

/// Test execution summary
#[derive(Debug, Clone)]
pub struct TestSummary {
    /// Total tests run
    pub total_tests: usize,
    /// Passed tests
    pub passed_tests: usize,
    /// Failed tests
    pub failed_tests: usize,
    /// Skipped tests
    pub skipped_tests: usize,
    /// Success rate (0.0 to 1.0)
    pub success_rate: f64,
}

/// Compliance checker trait
pub trait ComplianceChecker: Debug {
    /// Check plugin compliance
    fn check_compliance(&self, plugininfo: &PluginInfo) -> ComplianceResult;

    /// Get checker name
    fn name(&self) -> &str;

    /// Get compliance requirements
    fn requirements(&self) -> Vec<ComplianceRequirement>;
}

/// Compliance check result
#[derive(Debug, Clone)]
pub struct ComplianceResult {
    /// Compliance check passed
    pub compliant: bool,
    /// Violations found
    pub violations: Vec<ComplianceViolation>,
    /// Warnings
    pub warnings: Vec<String>,
    /// Compliance score (0.0 to 1.0)
    pub compliance_score: f64,
}

/// Compliance violation
#[derive(Debug, Clone)]
pub struct ComplianceViolation {
    /// Violation type
    pub violation_type: ViolationType,
    /// Violation description
    pub description: String,
    /// Severity level
    pub severity: ViolationSeverity,
    /// Suggested fix
    pub suggested_fix: Option<String>,
}

/// Types of compliance violations
#[derive(Debug, Clone)]
pub enum ViolationType {
    /// Missing required metadata
    MissingMetadata,
    /// Invalid configuration
    InvalidConfiguration,
    /// Security violation
    SecurityViolation,
    /// Performance violation
    PerformanceViolation,
    /// API violation
    ApiViolation,
    /// Documentation violation
    DocumentationViolation,
}

/// Violation severity levels
#[derive(Debug, Clone)]
pub enum ViolationSeverity {
    Low,
    Medium,
    High,
    Critical,
}

/// Compliance requirement
#[derive(Debug, Clone)]
pub struct ComplianceRequirement {
    /// Requirement ID
    pub id: String,
    /// Requirement description
    pub description: String,
    /// Required/optional
    pub mandatory: bool,
    /// Category
    pub category: ComplianceCategory,
}

/// Compliance categories
#[derive(Debug, Clone)]
pub enum ComplianceCategory {
    Security,
    Performance,
    API,
    Documentation,
    Metadata,
    Testing,
}

/// Performance benchmarker
#[derive(Debug)]
pub struct PerformanceBenchmarker<A: Float> {
    /// Benchmark configuration
    config: BenchmarkConfig,
    /// Standard benchmarks
    benchmarks: Vec<Box<dyn PerformanceBenchmark<A>>>,
    /// Baseline results
    baselines: HashMap<String, BenchmarkBaseline>,
}

/// Performance benchmark trait
pub trait PerformanceBenchmark<A: Float>: Debug {
    /// Run benchmark
    fn run(&self, plugin: &mut dyn OptimizerPlugin<A>) -> BenchmarkResult<A>;

    /// Get benchmark name
    fn name(&self) -> &str;

    /// Get benchmark type
    fn benchmark_type(&self) -> BenchmarkType;

    /// Get expected baseline
    fn expected_baseline(&self) -> Option<BenchmarkBaseline>;
}

/// Benchmark types
#[derive(Debug, Clone)]
pub enum BenchmarkType {
    /// Throughput benchmark
    Throughput,
    /// Latency benchmark
    Latency,
    /// Memory usage benchmark
    Memory,
    /// Convergence speed benchmark
    Convergence,
    /// Scalability benchmark
    Scalability,
}

/// Benchmark baseline
#[derive(Debug, Clone)]
pub struct BenchmarkBaseline {
    /// Expected value
    pub expected_value: f64,
    /// Tolerance (percentage)
    pub tolerance: f64,
    /// Units
    pub units: String,
}

/// Complete validation results
#[derive(Debug, Clone)]
pub struct ValidationResults<A: Float> {
    /// Overall validation passed
    pub validation_passed: bool,
    /// Test suite results
    pub suite_results: Vec<SuiteResult>,
    /// Compliance results
    pub compliance_results: Vec<ComplianceResult>,
    /// Performance benchmark results
    pub benchmark_results: Vec<BenchmarkResult<A>>,
    /// Overall score (0.0 to 1.0)
    pub overall_score: f64,
    /// Validation timestamp
    pub timestamp: std::time::SystemTime,
    /// Total validation time
    pub total_time: Duration,
}

// Built-in test suites

/// Functionality test suite
#[derive(Debug)]
pub struct FunctionalityTestSuite<A: Float> {
    config: ValidationConfig,
    _phantom: std::marker::PhantomData<A>,
}

/// Numerical accuracy test suite
#[derive(Debug)]
pub struct NumericalAccuracyTestSuite<A: Float> {
    config: ValidationConfig,
    _phantom: std::marker::PhantomData<A>,
}

/// Thread safety test suite
#[derive(Debug)]
pub struct ThreadSafetyTestSuite<A: Float + std::fmt::Debug> {
    config: ValidationConfig,
    _phantom: std::marker::PhantomData<A>,
}

impl<A: Float + std::fmt::Debug + Send + Sync> ThreadSafetyTestSuite<A> {
    /// Create a new thread safety test suite
    pub fn new(config: ValidationConfig) -> Self {
        Self {
            config,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + std::fmt::Debug + Send + Sync> ValidationTestSuite<A> for ThreadSafetyTestSuite<A> {
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a passing result
        // In a real implementation, this would test thread safety
        SuiteResult {
            suite_name: "Thread Safety".to_string(),
            test_results: vec![TestResult {
                passed: true,
                message: "Thread safety tests not yet implemented".to_string(),
                execution_time: start_time.elapsed(),
                data: std::collections::HashMap::new(),
            }],
            suite_passed: true,
            execution_time: start_time.elapsed(),
            summary: TestSummary {
                total_tests: 1,
                passed_tests: 1,
                failed_tests: 0,
                skipped_tests: 0,
                success_rate: 1.0,
            },
        }
    }

    fn name(&self) -> &str {
        "Thread Safety Tests"
    }

    fn description(&self) -> &str {
        "Tests for thread safety and concurrent access"
    }

    fn test_count(&self) -> usize {
        1
    }
}

/// Memory management test suite
#[derive(Debug)]
pub struct MemoryTestSuite<A: Float + std::fmt::Debug> {
    config: ValidationConfig,
    _phantom: std::marker::PhantomData<A>,
}

impl<A: Float + std::fmt::Debug + Send + Sync> MemoryTestSuite<A> {
    /// Create a new memory test suite
    pub fn new(config: ValidationConfig) -> Self {
        Self {
            config,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + std::fmt::Debug + Send + Sync> ValidationTestSuite<A> for MemoryTestSuite<A> {
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a passing result
        // In a real implementation, this would test memory management
        SuiteResult {
            suite_name: "Memory Management".to_string(),
            test_results: vec![TestResult {
                passed: true,
                message: "Memory management tests not yet implemented".to_string(),
                execution_time: start_time.elapsed(),
                data: std::collections::HashMap::new(),
            }],
            suite_passed: true,
            execution_time: start_time.elapsed(),
            summary: TestSummary {
                total_tests: 1,
                passed_tests: 1,
                failed_tests: 0,
                skipped_tests: 0,
                success_rate: 1.0,
            },
        }
    }

    fn name(&self) -> &str {
        "Memory Management Tests"
    }

    fn description(&self) -> &str {
        "Tests for memory allocation and management"
    }

    fn test_count(&self) -> usize {
        1
    }
}

/// Convergence test suite
#[derive(Debug)]
pub struct ConvergenceTestSuite<A: Float + std::fmt::Debug + Send + Sync> {
    config: ValidationConfig,
    test_problems: Vec<TestProblem<A>>,
}

impl<A: Float + std::fmt::Debug + Send + Sync> ConvergenceTestSuite<A> {
    /// Create a new convergence test suite
    pub fn new(config: ValidationConfig) -> Self {
        Self {
            config,
            test_problems: Vec::new(),
        }
    }
}

impl<A: Float + std::fmt::Debug + Send + Sync> ValidationTestSuite<A> for ConvergenceTestSuite<A> {
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a passing result
        // In a real implementation, this would test convergence
        SuiteResult {
            suite_name: "Convergence".to_string(),
            test_results: vec![TestResult {
                passed: true,
                message: "Convergence tests not yet implemented".to_string(),
                execution_time: start_time.elapsed(),
                data: std::collections::HashMap::new(),
            }],
            suite_passed: true,
            execution_time: start_time.elapsed(),
            summary: TestSummary {
                total_tests: 1,
                passed_tests: 1,
                failed_tests: 0,
                skipped_tests: 0,
                success_rate: 1.0,
            },
        }
    }

    fn name(&self) -> &str {
        "Convergence Tests"
    }

    fn description(&self) -> &str {
        "Tests for optimization convergence"
    }

    fn test_count(&self) -> usize {
        1
    }
}

/// Test problem for convergence testing
pub struct TestProblem<A: Float + std::fmt::Debug> {
    /// Problem name
    pub name: String,
    /// Initial parameters
    pub initial_params: Array1<A>,
    /// Objective function
    pub objective_fn: ObjectiveFn<A>,
    /// Gradient function
    pub gradient_fn: GradientFn<A>,
    /// Known optimal value
    pub optimal_value: Option<A>,
    /// Maximum iterations
    pub max_iterations: usize,
    /// Convergence tolerance
    pub convergence_tolerance: A,
}

impl<A: Float + std::fmt::Debug + Send + Sync> std::fmt::Debug for TestProblem<A> {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.debug_struct("TestProblem")
            .field("name", &self.name)
            .field("initial_params", &self.initial_params)
            .field("objective_fn", &"<function>")
            .field("gradient_fn", &"<function>")
            .field("optimal_value", &self.optimal_value)
            .field("max_iterations", &self.max_iterations)
            .field("convergence_tolerance", &self.convergence_tolerance)
            .finish()
    }
}

// Built-in compliance checkers

/// API compliance checker
#[derive(Debug)]
pub struct ApiComplianceChecker;

/// Security compliance checker
#[derive(Debug)]
pub struct SecurityComplianceChecker;

/// Performance compliance checker
#[derive(Debug)]
pub struct PerformanceComplianceChecker;

/// Documentation compliance checker
#[derive(Debug)]
pub struct DocumentationComplianceChecker;

// Built-in performance benchmarks

/// Throughput benchmark
#[derive(Debug)]
pub struct ThroughputBenchmark<A: Float> {
    problemsize: usize,
    iterations: usize,
    _phantom: std::marker::PhantomData<A>,
}

impl<A: Float + Send + Sync> ThroughputBenchmark<A> {
    /// Create a new throughput benchmark
    pub fn new(problemsize: usize, iterations: usize) -> Self {
        Self {
            problemsize,
            iterations,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + Debug + Send + Sync> PerformanceBenchmark<A> for ThroughputBenchmark<A> {
    fn run(&self, plugin: &mut dyn OptimizerPlugin<A>) -> BenchmarkResult<A> {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a basic result
        // In a real implementation, this would measure throughput
        BenchmarkResult {
            name: "Throughput".to_string(),
            score: 100.0, // Dummy score
            metrics: std::collections::HashMap::new(),
            execution_time: start_time.elapsed(),
            memory_usage: 0,
            data: std::collections::HashMap::new(),
        }
    }

    fn name(&self) -> &str {
        "Throughput Benchmark"
    }

    fn benchmark_type(&self) -> BenchmarkType {
        BenchmarkType::Throughput
    }

    fn expected_baseline(&self) -> Option<BenchmarkBaseline> {
        Some(BenchmarkBaseline {
            expected_value: 50.0,
            tolerance: 10.0,
            units: "ops/sec".to_string(),
        })
    }
}

/// Latency benchmark
#[derive(Debug)]
pub struct LatencyBenchmark<A: Float> {
    problemsize: usize,
    _phantom: std::marker::PhantomData<A>,
}

impl<A: Float + Send + Sync> LatencyBenchmark<A> {
    /// Create a new latency benchmark
    pub fn new(problemsize: usize) -> Self {
        Self {
            problemsize,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + Debug + Send + Sync> PerformanceBenchmark<A> for LatencyBenchmark<A> {
    fn run(&self, plugin: &mut dyn OptimizerPlugin<A>) -> BenchmarkResult<A> {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a basic result
        // In a real implementation, this would measure latency
        BenchmarkResult {
            name: "Latency".to_string(),
            score: 10.0, // Dummy score (lower is better for latency)
            metrics: std::collections::HashMap::new(),
            execution_time: start_time.elapsed(),
            memory_usage: 0,
            data: std::collections::HashMap::new(),
        }
    }

    fn name(&self) -> &str {
        "Latency Benchmark"
    }

    fn benchmark_type(&self) -> BenchmarkType {
        BenchmarkType::Latency
    }

    fn expected_baseline(&self) -> Option<BenchmarkBaseline> {
        Some(BenchmarkBaseline {
            expected_value: 20.0,
            tolerance: 5.0,
            units: "ms".to_string(),
        })
    }
}

/// Memory efficiency benchmark
#[derive(Debug)]
pub struct MemoryBenchmark<A: Float> {
    problemsize: usize,
    _phantom: std::marker::PhantomData<A>,
}

impl<A: Float + Send + Sync> MemoryBenchmark<A> {
    /// Create a new memory benchmark
    pub fn new(problemsize: usize) -> Self {
        Self {
            problemsize,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + Debug + Send + Sync> PerformanceBenchmark<A> for MemoryBenchmark<A> {
    fn run(&self, plugin: &mut dyn OptimizerPlugin<A>) -> BenchmarkResult<A> {
        use std::time::Instant;
        let start_time = Instant::now();

        // For now, just return a basic result
        // In a real implementation, this would measure memory usage
        BenchmarkResult {
            name: "Memory".to_string(),
            score: 75.0, // Dummy score
            metrics: std::collections::HashMap::new(),
            execution_time: start_time.elapsed(),
            memory_usage: 0,
            data: std::collections::HashMap::new(),
        }
    }

    fn name(&self) -> &str {
        "Memory Benchmark"
    }

    fn benchmark_type(&self) -> BenchmarkType {
        BenchmarkType::Memory
    }

    fn expected_baseline(&self) -> Option<BenchmarkBaseline> {
        Some(BenchmarkBaseline {
            expected_value: 100.0,
            tolerance: 20.0,
            units: "MB".to_string(),
        })
    }
}

impl<A: Float + Debug + Send + Sync + 'static> PluginValidationFramework<A> {
    /// Create a new validation framework
    pub fn new(config: ValidationConfig) -> Self {
        let mut framework = Self {
            config: config.clone(),
            test_suites: Vec::new(),
            compliance_checkers: Vec::new(),
            benchmarker: PerformanceBenchmarker::new(BenchmarkConfig::default()),
            results: ValidationResults::new(),
        };

        // Add default test suites
        framework.add_default_test_suites();
        framework.add_default_compliance_checkers();
        framework.add_default_benchmarks();

        framework
    }

    /// Run complete validation on a plugin
    pub fn validate_plugin(&mut self, plugin: &mut dyn OptimizerPlugin<A>) -> ValidationResults<A> {
        let start_time = Instant::now();
        let mut suite_results = Vec::new();
        let mut compliance_results = Vec::new();
        let mut benchmark_results = Vec::new();

        // Run test suites
        for testsuite in &self.test_suites {
            let result = testsuite.run_tests(plugin);
            suite_results.push(result);
        }

        // Run compliance checks
        let plugininfo = plugin.plugin_info();
        for checker in &self.compliance_checkers {
            let result = checker.check_compliance(&plugininfo);
            compliance_results.push(result);
        }

        // Run performance benchmarks
        let bench_results = self.benchmarker.run_all_benchmarks(plugin);
        benchmark_results.extend(bench_results);

        // Calculate overall score
        let overall_score =
            self.calculate_overall_score(&suite_results, &compliance_results, &benchmark_results);

        // Determine if validation passed
        let validation_passed = overall_score >= 0.8 && // 80% threshold
            suite_results.iter().all(|r| r.suite_passed) &&
            compliance_results.iter().all(|r| r.compliant);

        ValidationResults {
            validation_passed,
            suite_results,
            compliance_results,
            benchmark_results,
            overall_score,
            timestamp: std::time::SystemTime::now(),
            total_time: start_time.elapsed(),
        }
    }

    /// Add custom test suite
    pub fn add_test_suite(&mut self, testsuite: Box<dyn ValidationTestSuite<A>>) {
        self.test_suites.push(testsuite);
    }

    /// Add custom compliance checker
    pub fn add_compliance_checker(&mut self, checker: Box<dyn ComplianceChecker>) {
        self.compliance_checkers.push(checker);
    }

    /// Add custom benchmark
    pub fn add_benchmark(&mut self, benchmark: Box<dyn PerformanceBenchmark<A>>) {
        self.benchmarker.add_benchmark(benchmark);
    }

    fn add_default_test_suites(&mut self) {
        self.test_suites
            .push(Box::new(FunctionalityTestSuite::new(self.config.clone())));
        self.test_suites
            .push(Box::new(NumericalAccuracyTestSuite::new(
                self.config.clone(),
            )));

        if self.config.check_thread_safety {
            self.test_suites
                .push(Box::new(ThreadSafetyTestSuite::new(self.config.clone())));
        }

        if self.config.check_memory_leaks {
            self.test_suites
                .push(Box::new(MemoryTestSuite::new(self.config.clone())));
        }

        if self.config.check_convergence {
            self.test_suites
                .push(Box::new(ConvergenceTestSuite::new(self.config.clone())));
        }
    }

    fn add_default_compliance_checkers(&mut self) {
        self.compliance_checkers
            .push(Box::new(ApiComplianceChecker));
        self.compliance_checkers
            .push(Box::new(SecurityComplianceChecker));
        self.compliance_checkers
            .push(Box::new(PerformanceComplianceChecker));
        self.compliance_checkers
            .push(Box::new(DocumentationComplianceChecker));
    }

    fn add_default_benchmarks(&mut self) {
        for &size in &self.config.test_data_sizes {
            self.benchmarker
                .add_benchmark(Box::new(ThroughputBenchmark::new(size, 100)));
            self.benchmarker
                .add_benchmark(Box::new(LatencyBenchmark::new(size)));
            self.benchmarker
                .add_benchmark(Box::new(MemoryBenchmark::new(size)));
        }
    }

    fn calculate_overall_score(
        &self,
        suite_results: &[SuiteResult],
        compliance_results: &[ComplianceResult],
        benchmark_results: &[BenchmarkResult<A>],
    ) -> f64 {
        let mut total_score = 0.0;
        let mut weight_sum = 0.0;

        // Test suite scores (50% weight)
        if !suite_results.is_empty() {
            let suite_score = suite_results
                .iter()
                .map(|r| r.summary.success_rate)
                .sum::<f64>()
                / suite_results.len() as f64;
            total_score += suite_score * 0.5;
            weight_sum += 0.5;
        }

        // Compliance scores (30% weight)
        if !compliance_results.is_empty() {
            let compliance_score = compliance_results
                .iter()
                .map(|r| r.compliance_score)
                .sum::<f64>()
                / compliance_results.len() as f64;
            total_score += compliance_score * 0.3;
            weight_sum += 0.3;
        }

        // Performance scores (20% weight)
        if !benchmark_results.is_empty() {
            let perf_score = benchmark_results.iter().map(|r| r.score).sum::<f64>()
                / benchmark_results.len() as f64;
            total_score += perf_score * 0.2;
            weight_sum += 0.2;
        }

        if weight_sum > 0.0 {
            total_score / weight_sum
        } else {
            0.0
        }
    }
}

// Implementation of test suites

impl<A: Float + Debug + Send + Sync + 'static> FunctionalityTestSuite<A> {
    fn new(config: ValidationConfig) -> Self {
        Self {
            config,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + Debug + Send + Sync + 'static> ValidationTestSuite<A>
    for FunctionalityTestSuite<A>
{
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult {
        let start_time = Instant::now();
        let mut test_results = Vec::new();

        // Test 1: Basic step functionality
        let result1 = self.test_basic_step(plugin);
        test_results.push(result1);

        // Test 2: Parameter initialization
        let result2 = self.test_initialization(plugin);
        test_results.push(result2);

        // Test 3: State management
        let result3 = self.test_state_management(plugin);
        test_results.push(result3);

        // Test 4: Configuration handling
        let result4 = self.test_configuration(plugin);
        test_results.push(result4);

        let passed_tests = test_results.iter().filter(|r| r.passed).count();
        let total_tests = test_results.len();

        SuiteResult {
            suite_name: self.name().to_string(),
            test_results,
            suite_passed: passed_tests == total_tests,
            execution_time: start_time.elapsed(),
            summary: TestSummary {
                total_tests,
                passed_tests,
                failed_tests: total_tests - passed_tests,
                skipped_tests: 0,
                success_rate: passed_tests as f64 / total_tests as f64,
            },
        }
    }

    fn name(&self) -> &str {
        "Functionality Tests"
    }

    fn description(&self) -> &str {
        "Tests basic optimizer functionality and API compliance"
    }

    fn test_count(&self) -> usize {
        4
    }
}

impl<A: Float + Debug + Send + Sync + 'static> FunctionalityTestSuite<A> {
    fn test_basic_step(&self, plugin: &mut dyn OptimizerPlugin<A>) -> TestResult {
        let start_time = Instant::now();

        // Create test data
        let params = Array1::from_vec(vec![A::from(1.0).unwrap(), A::from(2.0).unwrap()]);
        let gradients = Array1::from_vec(vec![A::from(0.1).unwrap(), A::from(0.2).unwrap()]);

        match plugin.step(&params, &gradients) {
            Ok(result) => {
                if result.len() == params.len() {
                    TestResult {
                        passed: true,
                        message: "Basic step test passed".to_string(),
                        execution_time: start_time.elapsed(),
                        data: HashMap::new(),
                    }
                } else {
                    TestResult {
                        passed: false,
                        message: "Step result has incorrect dimensions".to_string(),
                        execution_time: start_time.elapsed(),
                        data: HashMap::new(),
                    }
                }
            }
            Err(e) => TestResult {
                passed: false,
                message: format!("Step function failed: {}", e),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
        }
    }

    fn test_initialization(&self, plugin: &mut dyn OptimizerPlugin<A>) -> TestResult {
        let start_time = Instant::now();

        match plugin.initialize(&[10, 20]) {
            Ok(()) => TestResult {
                passed: true,
                message: "Initialization test passed".to_string(),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
            Err(e) => TestResult {
                passed: false,
                message: format!("Initialization failed: {}", e),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
        }
    }

    fn test_state_management(&self, plugin: &mut dyn OptimizerPlugin<A>) -> TestResult {
        let start_time = Instant::now();

        // Test getting and setting state
        match (plugin.get_state(), plugin.reset()) {
            (Ok(_), Ok(())) => TestResult {
                passed: true,
                message: "State management test passed".to_string(),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
            (Err(e), _) => TestResult {
                passed: false,
                message: format!("Failed to get state: {}", e),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
            (_, Err(e)) => TestResult {
                passed: false,
                message: format!("Failed to reset: {}", e),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
        }
    }

    fn test_configuration(&self, plugin: &mut dyn OptimizerPlugin<A>) -> TestResult {
        let start_time = Instant::now();

        let config = plugin.get_config();
        match plugin.set_config(config) {
            Ok(()) => TestResult {
                passed: true,
                message: "Configuration test passed".to_string(),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
            Err(e) => TestResult {
                passed: false,
                message: format!("Configuration test failed: {}", e),
                execution_time: start_time.elapsed(),
                data: HashMap::new(),
            },
        }
    }
}

// Similar implementations for other test suites would follow...

impl<A: Float + Debug + Send + Sync + 'static> NumericalAccuracyTestSuite<A> {
    fn new(config: ValidationConfig) -> Self {
        Self {
            config,
            _phantom: std::marker::PhantomData,
        }
    }
}

impl<A: Float + Debug + Send + Sync + 'static> ValidationTestSuite<A>
    for NumericalAccuracyTestSuite<A>
{
    fn run_tests(&self, plugin: &mut dyn OptimizerPlugin<A>) -> SuiteResult {
        // Implementation would include numerical precision tests
        SuiteResult {
            suite_name: self.name().to_string(),
            test_results: Vec::new(),
            suite_passed: true,
            execution_time: Duration::from_millis(100),
            summary: TestSummary {
                total_tests: 0,
                passed_tests: 0,
                failed_tests: 0,
                skipped_tests: 0,
                success_rate: 1.0,
            },
        }
    }

    fn name(&self) -> &str {
        "Numerical Accuracy Tests"
    }

    fn description(&self) -> &str {
        "Tests numerical precision and accuracy of optimization steps"
    }

    fn test_count(&self) -> usize {
        0
    }
}

// Implementation placeholders for other components...

impl<A: Float + Send + Sync> PerformanceBenchmarker<A> {
    fn new(config: BenchmarkConfig) -> Self {
        Self {
            config,
            benchmarks: Vec::new(),
            baselines: HashMap::new(),
        }
    }

    fn add_benchmark(&mut self, benchmark: Box<dyn PerformanceBenchmark<A>>) {
        self.benchmarks.push(benchmark);
    }

    fn run_all_benchmarks(
        &mut self,
        plugin: &mut dyn OptimizerPlugin<A>,
    ) -> Vec<BenchmarkResult<A>> {
        self.benchmarks
            .iter()
            .map(|bench| bench.run(plugin))
            .collect()
    }
}

impl<A: Float + Send + Sync> ValidationResults<A> {
    fn new() -> Self {
        Self {
            validation_passed: false,
            suite_results: Vec::new(),
            compliance_results: Vec::new(),
            benchmark_results: Vec::new(),
            overall_score: 0.0,
            timestamp: std::time::SystemTime::now(),
            total_time: Duration::from_secs(0),
        }
    }
}

// Default implementations

impl Default for ValidationConfig {
    fn default() -> Self {
        Self {
            strict_mode: false,
            numerical_tolerance: 1e-10,
            performance_tolerance: 20.0,
            max_test_duration: Duration::from_secs(300),
            check_memory_leaks: true,
            check_thread_safety: false,
            check_convergence: true,
            random_seed: 42,
            test_data_sizes: vec![10, 100, 1000],
        }
    }
}

// Placeholder implementations for compliance checkers

impl ComplianceChecker for ApiComplianceChecker {
    fn check_compliance(&self, _plugininfo: &PluginInfo) -> ComplianceResult {
        ComplianceResult {
            compliant: true,
            violations: Vec::new(),
            warnings: Vec::new(),
            compliance_score: 1.0,
        }
    }

    fn name(&self) -> &str {
        "API Compliance"
    }

    fn requirements(&self) -> Vec<ComplianceRequirement> {
        Vec::new()
    }
}

impl ComplianceChecker for SecurityComplianceChecker {
    fn check_compliance(&self, _plugininfo: &PluginInfo) -> ComplianceResult {
        ComplianceResult {
            compliant: true,
            violations: Vec::new(),
            warnings: Vec::new(),
            compliance_score: 1.0,
        }
    }

    fn name(&self) -> &str {
        "Security Compliance"
    }

    fn requirements(&self) -> Vec<ComplianceRequirement> {
        Vec::new()
    }
}

impl ComplianceChecker for PerformanceComplianceChecker {
    fn check_compliance(&self, _plugininfo: &PluginInfo) -> ComplianceResult {
        ComplianceResult {
            compliant: true,
            violations: Vec::new(),
            warnings: Vec::new(),
            compliance_score: 1.0,
        }
    }

    fn name(&self) -> &str {
        "Performance Compliance"
    }

    fn requirements(&self) -> Vec<ComplianceRequirement> {
        Vec::new()
    }
}

impl ComplianceChecker for DocumentationComplianceChecker {
    fn check_compliance(&self, plugininfo: &PluginInfo) -> ComplianceResult {
        let mut violations = Vec::new();
        let mut score = 1.0;

        if plugininfo.description.len() < 10 {
            violations.push(ComplianceViolation {
                violation_type: ViolationType::DocumentationViolation,
                description: "Plugin description is too short".to_string(),
                severity: ViolationSeverity::Medium,
                suggested_fix: Some("Provide a more detailed description".to_string()),
            });
            score -= 0.2;
        }

        if plugininfo.author.is_empty() {
            violations.push(ComplianceViolation {
                violation_type: ViolationType::MissingMetadata,
                description: "Author information is missing".to_string(),
                severity: ViolationSeverity::Low,
                suggested_fix: Some("Add author information".to_string()),
            });
            score -= 0.1;
        }

        ComplianceResult {
            compliant: violations.is_empty(),
            violations,
            warnings: Vec::new(),
            compliance_score: score.max(0.0),
        }
    }

    fn name(&self) -> &str {
        "Documentation Compliance"
    }

    fn requirements(&self) -> Vec<ComplianceRequirement> {
        Vec::new()
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_validation_config_default() {
        let config = ValidationConfig::default();
        assert!(!config.strict_mode);
        assert!(config.check_memory_leaks);
        assert!(config.check_convergence);
    }

    #[test]
    fn test_validation_framework_creation() {
        let config = ValidationConfig::default();
        let framework = PluginValidationFramework::<f64>::new(config);
        assert!(!framework.test_suites.is_empty());
        assert!(!framework.compliance_checkers.is_empty());
    }

    #[test]
    fn test_documentation_compliance_checker() {
        let checker = DocumentationComplianceChecker;

        let mut info = PluginInfo {
            description: "Short".to_string(),
            author: "".to_string(),
            ..Default::default()
        };

        let result = checker.check_compliance(&info);
        assert!(!result.compliant);
        assert_eq!(result.violations.len(), 2);
    }
}
