amberjs 1.16.1

// Network Optimizer
// Optimizes network performance for edge computing

use crate::edge::{NodeId, RouteOptimizer};
use serde::{Deserialize, Serialize};
use std::collections::BTreeMap;
use std::sync::{Arc, Mutex, RwLock};
use tokio::time::{TokioDuration, TokioInstant};
use anyhow::{Result, Error};
use std::time::{Duration, Instant};
use std::collections::HashMap;
use std::time::SystemTime;

/// Network optimizer
#[derive(Debug)]
pub struct NetworkOptimizer {
    latency_monitor: Arc<LatencyMonitor>,
    routing_optimizer: Arc<RouteOptimizer>,
}
/// Latency monitor
#[derive(Debug)]
pub struct LatencyMonitor {
    measurements: Arc<RwLock<Vec<LatencyMeasurement>>>,
}
/// Latency measurement
#[derive(Debug, Clone)]
pub struct LatencyMeasurement {
    pub timestamp: std::time::SystemTime,
    pub source: String,
    pub destination: String,
    pub latency_ms: u64,
    pub jitter_ms: f64,
    pub packet_loss_percent: f64,
}
/// Latency optimization result
#[derive(Debug, Clone)]
pub struct LatencyOptimization {
    pub average_latency_reduction_percent: f64,
    pub routes_optimized: usize,
    pub estimated_improvement_ms: u64,
    pub execution_time_ms: u64,
}
/// Network path
#[derive(Debug, Clone)]
pub struct NetworkPath {
    pub nodes: Vec<String>,
    pub total_latency_ms: u64,
    pub total_bandwidth_mbps: u64,
    pub reliability_score: f64,
}
/// Bandwidth manager
#[derive(Debug)]
pub struct BandwidthManager {
    allocator: Arc<BandwidthAllocator>,
    monitor: Arc<BandwidthMonitor>,
}
/// Bandwidth allocator
#[derive(Debug)]
pub struct BandwidthAllocator {
    pools: Arc<RwLock<HashMap<String, BandwidthPool>>>,
}
/// Bandwidth pool
#[derive(Debug, Clone)]
pub struct BandwidthPool {
    pub name: String,
    pub total_bandwidth_mbps: u64,
    pub allocated_bandwidth_mbps: u64,
    pub available_bandwidth_mbps: u64,
    pub active_allocations: Vec<BandwidthAllocation>,
}
/// Bandwidth allocation
#[derive(Debug, Clone)]
pub struct BandwidthAllocation {
    pub id: String,
    pub requester: String,
    pub allocated_mbps: u64,
    pub timestamp: std::time::SystemTime,
}
/// Bandwidth request
#[derive(Debug, Clone)]
pub struct BandwidthRequest {
    pub requester_id: String,
    pub requested_mbps: u64,
    pub duration_ms: u64,
    pub priority: AllocationPriority,
}
/// Allocation priority
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub enum AllocationPriority {
    Low,
    Normal,
    High,
    Critical,
}
/// Allocation result
#[derive(Debug, Clone)]
pub struct Allocation {
    pub allocated: bool,
    pub allocated_mbps: u64,
    pub pool_name: String,
    pub rejection_reason: Option<String>,
}
/// Bandwidth usage
#[derive(Debug, Clone)]
pub struct BandwidthUsage {
    pub total_capacity_mbps: u64,
    pub total_allocated_mbps: u64,
    pub total_available_mbps: u64,
    pub utilization_percent: f64,
    pub peak_usage_mbps: u64,
    pub average_usage_mbps: f64,
}
/// Bandwidth monitor
#[derive(Debug)]
pub struct BandwidthMonitor {
    usage_history: Arc<RwLock<Vec<UsageSample>>>,
}
/// Usage sample
#[derive(Debug, Clone)]
pub struct UsageSample {
    pub timestamp: std::time::SystemTime,
    pub total_usage_mbps: u64,
    pub per_pool_usage: HashMap<String, u64>,
}
impl NetworkOptimizer {
    /// Create a new network optimizer
    pub async fn new() -> Result<Self> {
        let optimizer: _ = NetworkOptimizer {
            latency_monitor: Arc::new(Mutex::new(LatencyMonitor::new()),.await?),
            routing_optimizer: Arc::new(Mutex::new(RouteOptimizer::new()),.await?),
        };
        println!("Network optimizer initialized");
        Ok(optimizer)
    }
    /// Optimize network latency
    pub async fn optimize_latency(&self) -> Result<LatencyOptimization> {
        let start: _ = Instant::now();
        println!("Starting latency optimization...");
        // Get latency measurements
        let measurements: _ = self.latency_monitor.get_recent_measurements().await?;
        // Analyze latency patterns
        let analysis: _ = self.analyze_latency_patterns(&measurements).await?;
        // Optimize routes
        let optimized_routes: _ = self.routing_optimizer.optimize_routes().await?;
        let elapsed: _ = start.elapsed();
        let result: _ = LatencyOptimization {
            average_latency_reduction_percent: analysis.average_reduction,
            routes_optimized: optimized_routes.len(),
            estimated_improvement_ms: analysis.estimated_improvement,
            execution_time_ms: elapsed.as_millis() as u64,
        };
        println!("Latency optimization completed in {}ms ({}% reduction)",
                 result.execution_time_ms, result.average_latency_reduction_percent);
        Ok(result)
    }
    /// Select optimal network path
    pub async fn select_optimal_path(&self, destination: &NodeId) -> Result<NetworkPath> {
        let path: _ = self.routing_optimizer.find_optimal_path(destination).await?;
        Ok(path)
    }
    /// Analyze latency patterns
    async fn analyze_latency_patterns(&self, measurements: &[LatencyMeasurement]) -> Result<LatencyAnalysis> {
        if measurements.is_empty() {
            return Ok(LatencyAnalysis {
                average_reduction: 0.0,
                estimated_improvement: 0,
                problem_areas: Vec::new(),
            });
        }
        // Calculate average latency
        let avg_latency: u64 = measurements.iter().map(|m| m.latency_ms).sum::<u64>() / measurements.len() as u64;
        // Find high-latency routes
        let problem_areas: Vec<String> = measurements
            .iter()
            .filter(|m| m.latency_ms > avg_latency * 2)
            .map(|m| format!("{}-{}", m.source, m.destination))
            .collect();
        // Estimate improvement
        let estimated_improvement: _ = avg_latency / 5; // 20% improvement
        Ok(LatencyAnalysis {
            average_reduction: 20.0,
            estimated_improvement,
            problem_areas,
        })
    }
}
/// Latency analysis result
#[derive(Debug)]
struct LatencyAnalysis {
    average_reduction: f64,
    estimated_improvement: u64,
    problem_areas: Vec<String>,
}
impl LatencyMonitor {
    /// Create a new latency monitor
    pub async fn new() -> Result<Self> {
        let monitor: _ = LatencyMonitor {
            measurements: Arc::new(Mutex::new(Vec::new()))
        };
        println!("Latency monitor initialized");
        Ok(monitor)
    }
    /// Measure latency
    pub async fn measure_latency(&self, source: &str, destination: &str) -> Result<LatencyMeasurement> {
        // Simulate latency measurement
        tokio::time::sleep(Duration::from_millis(5)).await;
        let measurement: _ = LatencyMeasurement {
            timestamp: std::time::SystemTime::now(),
            source: source.to_string(),
            destination: destination.to_string(),
            latency_ms: 50 + (fastrand::u64() % 100),
            jitter_ms: fastrand::f64() * 10.0,
            packet_loss_percent: fastrand::f64() * 2.0,
        };
        // Store measurement
        {
            let mut measurements = self.measurements.write().await;
            measurements.push(measurement.clone());
            // Keep only last 1000 measurements
            if measurements.len() > 1000 {
                measurements.drain(0..measurements.len() - 1000);
            }
        }
        Ok(measurement)
    }
    /// Get recent measurements
    pub async fn get_recent_measurements(&self) -> Result<Vec<LatencyMeasurement> {
        let measurements: _ = self.measurements.read().await;
        let recent: _ = measurements.iter().rev().take(100).cloned().collect();
        Ok(recent)
    }
    /// Get average latency
    pub async fn get_average_latency(&self) -> Result<u64> {
        let measurements: _ = self.measurements.read().await;
        if measurements.is_empty() {
            return Ok(0);
        }
        let avg: u64 = measurements.iter().map(|m| m.latency_ms).sum::<u64>() / measurements.len() as u64;
        Ok(avg)
    }
}
impl RouteOptimizer {
    /// Create a new route optimizer
    pub async fn new() -> Result<Self> {
        let optimizer: _ = RouteOptimizer {
            routes: Arc::new(Mutex::new(HashMap::new()))
        };
        println!("Route optimizer initialized");
        Ok(optimizer)
    }
    /// Find optimal path to destination
    pub async fn find_optimal_path(&self, destination: &NodeId) -> Result<NetworkPath> {
        // Simulate path finding
        tokio::time::sleep(Duration::from_millis(10)).await;
        let path: _ = NetworkPath {
            nodes: vec!["edge-node-1".to_string(), destination.0.clone()],
            total_latency_ms: 45,
            total_bandwidth_mbps: 1000,
            reliability_score: 0.95,
        };
        println!("Found optimal path to {} with {}ms latency",
                 destination.0, path.total_latency_ms);
        Ok(path)
    }
    /// Optimize all routes
    pub async fn optimize_routes(&self) -> Result<Vec<NetworkPath> {
        // Simulate route optimization
        tokio::time::sleep(Duration::from_millis(20)).await;
        Ok(Vec::new())
    }
}
impl BandwidthManager {
    /// Create a new bandwidth manager
    pub async fn new() -> Result<Self> {
        let manager: _ = BandwidthManager {
            allocator: Arc::new(Mutex::new(BandwidthAllocator::new()),.await?),
            monitor: Arc::new(Mutex::new(BandwidthMonitor::new()),.await?),
        };
        println!("Bandwidth manager initialized");
        Ok(manager)
    }
    /// Allocate bandwidth
    pub async fn allocate_bandwidth(&self, request: BandwidthRequest) -> Result<Allocation> {
        let allocation: _ = self.allocator.allocate(&request).await?;
        Ok(allocation)
    }
    /// Monitor bandwidth usage
    pub async fn monitor_usage(&self) -> Result<BandwidthUsage> {
        let usage: _ = self.monitor.get_usage().await?;
        Ok(usage)
    }
    /// Get allocator
    pub fn allocator(&self) -> &Arc<BandwidthAllocator> {
        &self.allocator
    }
    /// Get monitor
    pub fn monitor(&self) -> &Arc<BandwidthMonitor> {
        &self.monitor
    }
}
impl BandwidthAllocator {
    /// Create a new bandwidth allocator
    pub async fn new() -> Result<Self> {
        let allocator: _ = BandwidthAllocator {
            pools: Arc::new(Mutex::new(HashMap::new()))
        };
        // Initialize default pools
        allocator.initialize_default_pools().await?;
        println!("Bandwidth allocator initialized");
        Ok(allocator)
    }
    /// Initialize default bandwidth pools
    async fn initialize_default_pools(&self) -> Result<()> {
        let mut pools = self.pools.write().await;
        pools.insert("high_priority".to_string(), BandwidthPool {
            name: "high_priority".to_string(),
            total_bandwidth_mbps: 1000,
            allocated_bandwidth_mbps: 0,
            available_bandwidth_mbps: 1000,
            active_allocations: Vec::new(),
        });
        pools.insert("normal_priority".to_string(), BandwidthPool {
            name: "normal_priority".to_string(),
            total_bandwidth_mbps: 2000,
            allocated_bandwidth_mbps: 0,
            available_bandwidth_mbps: 2000,
            active_allocations: Vec::new(),
        });
        pools.insert("low_priority".to_string(), BandwidthPool {
            name: "low_priority".to_string(),
            total_bandwidth_mbps: 500,
            allocated_bandwidth_mbps: 0,
            available_bandwidth_mbps: 500,
            active_allocations: Vec::new(),
        });
        Ok(())
    }
    /// Allocate bandwidth
    pub async fn allocate(&self, request: &BandwidthRequest) -> Result<Allocation> {
        let pool_name: _ = match request.priority {
            AllocationPriority::Critical | AllocationPriority::High => "high_priority",
            AllocationPriority::Normal => "normal_priority",
            AllocationPriority::Low => "low_priority",
        };
        let mut pools = self.pools.write().await;
        let pool: _ = pools.get_mut(pool_name)
            .ok_or_else(|| anyhow::anyhow!("Pool not found: {}", pool_name))?;
        // Check if enough bandwidth is available
        if pool.available_bandwidth_mbps >= request.requested_mbps {
            // Allocate bandwidth
            pool.available_bandwidth_mbps -= request.requested_mbps;
            pool.allocated_bandwidth_mbps += request.requested_mbps;
            let allocation: _ = BandwidthAllocation {
                id: format!("alloc-{}", uuid::Uuid::new_v4()),
                requester: request.requester_id.clone(),
                allocated_mbps: request.requested_mbps,
                timestamp: std::time::SystemTime::now(),
            };
            pool.active_allocations.push(allocation.clone());
            println!("Allocated {} Mbps to {} from {} pool",
                     request.requested_mbps, request.requester_id, pool_name);
            Ok(Allocation {
                allocated: true,
                allocated_mbps: request.requested_mbps,
                pool_name: pool_name.to_string(),
                rejection_reason: None,
            })
        } else {
            println!("Failed to allocate {} Mbps to {} - insufficient bandwidth",
                     request.requested_mbps, request.requester_id);
            Ok(Allocation {
                allocated: false,
                allocated_mbps: 0,
                pool_name: pool_name.to_string(),
                rejection_reason: Some("Insufficient bandwidth".to_string()),
            })
        }
    }
    /// Release bandwidth allocation
    pub async fn release_allocation(&self, allocation_id: &str) -> Result<()> {
        let mut pools = self.pools.write().await;
        for pool in pools.values_mut() {
            if let Some(index) = pool.active_allocations.iter().position(|a| a.id == allocation_id) {
                let allocation: _ = pool.active_allocations.remove(index);
                pool.available_bandwidth_mbps += allocation.allocated_mbps;
                pool.allocated_bandwidth_mbps -= allocation.allocated_mbps;
                println!("Released {} Mbps allocation {}",
                         allocation.allocated_mbps, allocation_id);
                return Ok(());
            }
        }
        Err(anyhow::anyhow!("Allocation not found: {}", allocation_id))
    }
    /// Get pool status
    pub async fn get_pool_status(&self) -> Result<Vec<BandwidthPool> {
        let pools: _ = self.pools.read().await;
        Ok(pools.values().cloned().collect())
    }
}
impl BandwidthMonitor {
    /// Create a new bandwidth monitor
    pub async fn new() -> Result<Self> {
        let monitor: _ = BandwidthMonitor {
            usage_history: Arc::new(Mutex::new(Vec::new()))
        };
        println!("Bandwidth monitor initialized");
        Ok(monitor)
    }
    /// Get current bandwidth usage
    pub async fn get_usage(&self) -> Result<BandwidthUsage> {
        let usage: _ = BandwidthUsage {
            total_capacity_mbps: 3500,
            total_allocated_mbps: 2100,
            total_available_mbps: 1400,
            utilization_percent: 60.0,
            peak_usage_mbps: 2800,
            average_usage_mbps: 1900,
        };
        Ok(usage)
    }
    /// Record usage sample
    pub async fn record_usage(&self, sample: UsageSample) {
        let mut history = self.usage_history.write().await;
        history.push(sample);
        // Keep only last 100 samples
        if history.len() > 100 {
            history.drain(0..history.len() - 100);
        }
    }
    /// Get usage history
    pub async fn get_usage_history(&self) -> Vec<UsageSample> {
        let history: _ = self.usage_history.read().await;
        history.clone()
    }
}