kiteticker-async-manager 0.4.0

use kiteticker_async_manager::{
  KiteManagerConfig, KiteTickerManager, Mode, TickerMessage,
};
use std::time::Duration;
use tokio::time::sleep;

#[tokio::main]
async fn main() -> Result<(), String> {
  // Initialize with your API credentials
  let api_key = std::env::var("KITE_API_KEY").unwrap_or_default();
  let access_token = std::env::var("KITE_ACCESS_TOKEN").unwrap_or_default();

  if api_key.is_empty() || access_token.is_empty() {
    println!(
      "⚠️ Please set KITE_API_KEY and KITE_ACCESS_TOKEN environment variables"
    );
    return Err("Missing API credentials".to_string());
  }

  // Create configuration
  let config = KiteManagerConfig {
    max_symbols_per_connection: 3000,
    max_connections: 3,
    connection_buffer_size: 5000,
    parser_buffer_size: 10000,
    connection_timeout: Duration::from_secs(30),
    health_check_interval: Duration::from_secs(5),
    max_reconnect_attempts: 5,
    reconnect_delay: Duration::from_secs(2),
    enable_dedicated_parsers: true,
    default_mode: Mode::LTP,
    heartbeat_liveness_threshold: Duration::from_secs(10),
  };

  // Start the manager
  let mut manager = KiteTickerManager::new(api_key, access_token, config);
  manager.start().await?;

  println!("🚀 KiteTicker Manager started!");

  // Example of runtime subscription management
  runtime_subscription_demo(&mut manager).await?;

  // Stop the manager
  manager.stop().await?;
  Ok(())
}

async fn runtime_subscription_demo(
  manager: &mut KiteTickerManager,
) -> Result<(), String> {
  println!("\n📡 Runtime Subscription Management Demo");
  println!("=====================================");

  // 1. Start with initial symbols
  println!("\n1️⃣ Initial subscription to base symbols");
  let initial_symbols = vec![256265, 265, 256777];
  manager
    .subscribe_symbols(&initial_symbols, Some(Mode::LTP))
    .await?;
  print_current_state(manager, "Initial subscription").await;

  sleep(Duration::from_secs(2)).await;

  // 2. Add more symbols dynamically
  println!("\n2️⃣ Adding symbols dynamically");
  let additional_symbols = vec![274441, 260105, 273929];
  manager
    .subscribe_symbols(&additional_symbols, Some(Mode::Quote))
    .await?;
  print_current_state(manager, "After adding symbols").await;

  sleep(Duration::from_secs(2)).await;

  // 3. Change mode for existing symbols
  println!("\n3️⃣ Changing subscription mode");
  let symbols_for_mode_change = vec![256265, 265];
  manager
    .change_mode(&symbols_for_mode_change, Mode::Full)
    .await?;
  print_current_state(manager, "After mode change").await;

  sleep(Duration::from_secs(2)).await;

  // 4. Remove some symbols
  println!("\n4️⃣ Removing symbols dynamically");
  let symbols_to_remove = vec![265, 274441];
  manager.unsubscribe_symbols(&symbols_to_remove).await?;
  print_current_state(manager, "After removing symbols").await;

  sleep(Duration::from_secs(2)).await;

  // 5. Add different symbols with different modes
  println!("\n5️⃣ Adding new symbols with Full mode");
  let full_mode_symbols = vec![257801, 258825];
  manager
    .subscribe_symbols(&full_mode_symbols, Some(Mode::Full))
    .await?;
  print_current_state(manager, "After adding Full mode symbols").await;

  // 6. Monitor live data for a short period
  println!("\n6️⃣ Monitoring live data (5 seconds)");
  monitor_live_data(manager, 5).await?;

  // 7. Complete cleanup
  println!("\n7️⃣ Complete cleanup");
  let all_symbols: Vec<u32> = manager
    .get_symbol_distribution()
    .values()
    .flat_map(|symbols| symbols.iter().cloned())
    .collect();

  if !all_symbols.is_empty() {
    manager.unsubscribe_symbols(&all_symbols).await?;
    print_current_state(manager, "After complete cleanup").await;
  }

  println!("\n✅ Runtime subscription demo completed!");
  Ok(())
}

async fn print_current_state(manager: &KiteTickerManager, context: &str) {
  println!("\n📊 Current State ({})", context);

  // Show distribution
  let distribution = manager.get_symbol_distribution();
  let mut total = 0;
  for (channel_id, symbols) in &distribution {
    println!("   {:?}: {} symbols", channel_id, symbols.len());
    total += symbols.len();
  }
  println!("   📈 Total: {} symbols", total);

  // Show stats
  if let Ok(stats) = manager.get_stats().await {
    println!(
      "   📊 Stats: {} connections, {} messages",
      stats.active_connections, stats.total_messages_received
    );
  }
}

async fn monitor_live_data(
  manager: &mut KiteTickerManager,
  seconds: u64,
) -> Result<(), String> {
  let channels = manager.get_all_channels();
  let mut tasks = Vec::new();

  for (channel_id, mut receiver) in channels {
    let task = tokio::spawn(async move {
      let mut count = 0;
      let start = std::time::Instant::now();

      while start.elapsed() < Duration::from_secs(seconds) {
        match tokio::time::timeout(Duration::from_millis(100), receiver.recv())
          .await
        {
          Ok(Ok(message)) => {
            count += 1;
            if let TickerMessage::Ticks(ticks) = message {
              if count <= 2 {
                // Show first few ticks
                println!(
                  "   📋 {:?}: Received {} ticks",
                  channel_id,
                  ticks.len()
                );
              }
            }
          }
          _ => continue,
        }
      }
      (channel_id, count)
    });
    tasks.push(task);
  }

  // Wait for monitoring to complete
  for task in tasks {
    if let Ok((channel_id, count)) = task.await {
      println!("   📊 {:?}: {} total messages", channel_id, count);
    }
  }

  Ok(())
}