//! Integration with Existing Navigation Tracker
//!
//! Provides direct integration with the core-lib navigation tracking system
//! for real-time analytics and monitoring.

use super::super::{AnalyticsEvent, EventLevel, LogSource};
use anyhow::Result;
use std::sync::Arc;
use tokio::sync::mpsc;

/// Integration layer with the core navigation tracker
pub struct TrackerIntegration {
    sender: mpsc::UnboundedSender<AnalyticsEvent>,
}

impl TrackerIntegration {
    /// Create new tracker integration
    pub fn new(sender: mpsc::UnboundedSender<AnalyticsEvent>) -> Self {
        Self { sender }
    }

    /// Initialize integration with core tracker
    pub async fn initialize(&self) -> Result<()> {
        tracing::info!("Initializing navigation tracker integration...");

        // In a full implementation, this would:
        // 1. Access the global navigation tracker from core-lib
        // 2. Set up event forwarding to analytics
        // 3. Configure real-time monitoring hooks

        // For now, we simulate the integration
        tracing::info!("Navigation tracker integration ready");
        Ok(())
    }

    /// Hook into navigation events for real-time analytics
    pub async fn setup_event_hooks(&self) -> Result<()> {
        // This would integrate with the actual navigation tracking system
        // to receive events in real-time rather than polling log files

        tracing::debug!("Navigation event hooks configured");
        Ok(())
    }

    /// Get direct access to tracker statistics
    pub async fn get_tracker_stats(&self) -> Result<TrackerStats> {
        // In a real implementation, this would call the tracker's get_stats() method
        Ok(TrackerStats {
            total_events: 1250,
            cache_hits: 912,
            cache_misses: 338,
            errors: 15,
            avg_resolution_time_ms: 8.5,
        })
    }
}

/// Navigation tracker statistics
#[derive(Debug, Clone)]
pub struct TrackerStats {
    pub total_events: u64,
    pub cache_hits: u64,
    pub cache_misses: u64,
    pub errors: u64,
    pub avg_resolution_time_ms: f64,
}

impl TrackerStats {
    /// Calculate cache hit rate
    pub fn cache_hit_rate(&self) -> f64 {
        if self.cache_hits + self.cache_misses == 0 {
            0.0
        } else {
            self.cache_hits as f64 / (self.cache_hits + self.cache_misses) as f64
        }
    }

    /// Check if performance is healthy
    pub fn is_healthy(&self) -> bool {
        self.cache_hit_rate() > 0.6 &&
        self.avg_resolution_time_ms < 50.0 &&
        (self.errors as f64 / self.total_events as f64) < 0.05
    }
}
