//! Advanced Mode Demonstration
//!
//! This example demonstrates the basic functionality of the Advanced mode
//! coordinator and its optimized integrators.

use ndarray::{Array1, ArrayView1};
use scirs2_integrate::error::IntegrateResult;
use scirs2_integrate::mode_coordinator::{
    AdvancedModeConfig, AdvancedModeCoordinator, PerformanceTargets,
};
use std::time::Duration;

#[allow(dead_code)]
fn main() -> IntegrateResult<()> {
    println!("🚀 Advanced Mode Demonstration");

    // Create Advanced mode configuration
    let config = AdvancedModeConfig {
        enable_gpu: false, // Disable GPU for demo
        enable_memory_optimization: true,
        enable_simd: true,
        enable_adaptive_optimization: true,
        enable_neural_rl: false, // Disable for simplicity
        performance_targets: PerformanceTargets {
            target_throughput: 1000.0,
            max_memory_usage: 1024 * 1024 * 1024, // 1GB
            target_accuracy: 1e-8,
            max_execution_time: Duration::from_secs(1),
        },
    };

    // Create Advanced mode coordinator
    println!("📊 Creating Advanced mode coordinator...");
    let coordinator = AdvancedModeCoordinator::<f64>::new(config)?;

    // Initialize adaptive optimization
    println!("⚙️  Initializing adaptive optimization...");
    coordinator.initialize_adaptive_optimization()?;

    // Define a simple test ODE: dy/dt = -y (exponential decay)
    let ode_function =
        |_t: f64, y: &ArrayView1<f64>| -> IntegrateResult<Array1<f64>> { Ok(-y.to_owned()) };

    // Test data
    let initial_y = Array1::from_vec(vec![1.0, 0.5, -0.2, 0.8]);
    let t = 0.0;
    let h = 0.01;

    // Perform advanced-optimized RK4 integration
    println!("🧮 Performing advanced-optimized RK4 integration...");
    let result = coordinator.advanced_rk4_integration(t, &initial_y.view(), h, ode_function)?;

    println!("✅ Integration completed successfully!");
    println!("   Solution length: {}", result.solution.len());
    println!(
        "   Execution time: {:?}",
        result.performance_metrics.execution_time
    );
    println!(
        "   Optimizations applied: {:?}",
        result.optimizations_applied
    );
    println!(
        "   Peak memory usage: {} bytes",
        result.performance_metrics.peak_memory_usage
    );
    println!(
        "   GPU utilization: {:.1}%",
        result.performance_metrics.gpu_utilization
    );
    println!(
        "   SIMD efficiency: {:.1}%",
        result.performance_metrics.simd_efficiency
    );
    println!(
        "   Cache hit rate: {:.1}%",
        result.performance_metrics.cache_hit_rate * 100.0
    );
    println!(
        "   Throughput: {:.1} ops/sec",
        result.performance_metrics.throughput
    );

    // Test adaptive integration
    println!("\n🎯 Testing adaptive integration...");
    let rtol = 1e-6;
    let atol = 1e-8;

    let adaptive_result = coordinator.advanced_adaptive_integration(
        t,
        &initial_y.view(),
        h,
        rtol,
        atol,
        ode_function,
    )?;

    println!("✅ Adaptive integration completed!");
    println!(
        "   Optimizations applied: {:?}",
        adaptive_result.optimizations_applied
    );
    println!(
        "   Execution time: {:?}",
        adaptive_result.performance_metrics.execution_time
    );

    // Get performance report
    println!("\n📈 Generating performance report...");
    let performance_report = coordinator.get_performance_report()?;

    println!("✅ Performance report generated!");
    println!(
        "   Active components: {}",
        performance_report.components_active
    );
    println!(
        "   Estimated speedup: {:.2}x",
        performance_report.estimated_speedup
    );
    println!(
        "   Memory efficiency: {:.1}%",
        performance_report.memory_efficiency * 100.0
    );
    println!(
        "   Power efficiency: {:.1}%",
        performance_report.power_efficiency * 100.0
    );

    if !performance_report.recommendations.is_empty() {
        println!("   Recommendations:");
        for rec in &performance_report.recommendations {
            println!("     • {rec}");
        }
    }

    println!("\n🎉 Advanced mode demonstration completed successfully!");

    Ok(())
}
