//! Unit tests for client builder and factory
//!
//! Tests TliClientBuilder, ClientFactory, and TliClientSuite.

use tli::client::{
    TliClientBuilder, ClientFactory, ServiceEndpoints,
    connection_manager::ConnectionConfig,
    trading_client::TradingClientConfig,
    backtesting_client::BacktestingClientConfig,
    ml_training_client::MLTrainingClientConfig,
};

/// Test ServiceEndpoints localhost defaults
#[test]
fn test_service_endpoints_localhost() {
    let endpoints = ServiceEndpoints::localhost();

    assert_eq!(endpoints.trading_engine, "https://localhost:50050");
    assert_eq!(endpoints.market_data, "https://localhost:50050");
    assert_eq!(endpoints.backtesting_service, "https://localhost:50050");
    assert_eq!(endpoints.ml_training_service, "https://localhost:50050");
}

/// Test ServiceEndpoints default
#[test]
fn test_service_endpoints_default() {
    let endpoints = ServiceEndpoints::default();

    // All fields should be empty strings
    assert_eq!(endpoints.trading_engine, "");
    assert_eq!(endpoints.market_data, "");
    assert_eq!(endpoints.backtesting_service, "");
    assert_eq!(endpoints.ml_training_service, "");
}

/// Test ServiceEndpoints clone
#[test]
fn test_service_endpoints_clone() {
    let endpoints = ServiceEndpoints::localhost();
    let cloned = endpoints.clone();

    assert_eq!(cloned.trading_engine, endpoints.trading_engine);
    assert_eq!(cloned.market_data, endpoints.market_data);
}

/// Test ServiceEndpoints serialization
#[test]
fn test_service_endpoints_serialization() {
    let endpoints = ServiceEndpoints::localhost();
    let json = serde_json::to_string(&endpoints).unwrap();

    let deserialized: ServiceEndpoints = serde_json::from_str(&json).unwrap();
    assert_eq!(deserialized.trading_engine, endpoints.trading_engine);
}

/// Test ClientFactory creation
#[test]
fn test_client_factory_creation() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    assert!(format!("{:?}", factory).contains("ClientFactory"));
}

/// Test ClientFactory create_trading_client
#[test]
fn test_client_factory_create_trading_client() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    let trading_config = TradingClientConfig::default();
    let _client = factory.create_trading_client(trading_config);

    // Client should be created successfully
}

/// Test ClientFactory create_backtesting_client
#[test]
fn test_client_factory_create_backtesting_client() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    let backtesting_config = BacktestingClientConfig::default();
    let _client = factory.create_backtesting_client(backtesting_config);

    // Client should be created successfully
}

/// Test ClientFactory create_ml_training_client
#[test]
fn test_client_factory_create_ml_training_client() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    let ml_config = MLTrainingClientConfig::default();
    let _client = factory.create_ml_training_client(ml_config);

    // Client should be created successfully
}

/// Test TliClientBuilder creation
#[test]
fn test_tli_client_builder_new() {
    let builder = TliClientBuilder::new();

    // Builder should have default state
    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder default
#[test]
fn test_tli_client_builder_default() {
    let builder = TliClientBuilder::default();

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with_connection_config
#[test]
fn test_tli_client_builder_with_connection_config() {
    let config = ConnectionConfig {
        server_url: "https://custom:8080".to_string(),
        auth_token: Some("token".to_string()),
        timeout_ms: 5000,
        max_retries: 5,
    };

    let builder = TliClientBuilder::new().with_connection_config(config);

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with_service_endpoint
#[test]
fn test_tli_client_builder_with_service_endpoint() {
    let builder = TliClientBuilder::new()
        .with_service_endpoint("trading".to_string(), "https://trading:50051".to_string());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with multiple service endpoints
#[test]
fn test_tli_client_builder_multiple_endpoints() {
    let builder = TliClientBuilder::new()
        .with_service_endpoint("trading".to_string(), "https://trading:50051".to_string())
        .with_service_endpoint("backtesting".to_string(), "https://backtesting:50052".to_string())
        .with_service_endpoint("ml".to_string(), "https://ml:50053".to_string());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with_trading_config
#[test]
fn test_tli_client_builder_with_trading_config() {
    let trading_config = TradingClientConfig::default();
    let builder = TliClientBuilder::new().with_trading_config(trading_config);

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with_backtesting_config
#[test]
fn test_tli_client_builder_with_backtesting_config() {
    let backtesting_config = BacktestingClientConfig::default();
    let builder = TliClientBuilder::new().with_backtesting_config(backtesting_config);

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with_ml_training_config
#[test]
fn test_tli_client_builder_with_ml_training_config() {
    let ml_config = MLTrainingClientConfig::default();
    let builder = TliClientBuilder::new().with_ml_training_config(ml_config);

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder chaining multiple configs
#[test]
fn test_tli_client_builder_chaining() {
    let builder = TliClientBuilder::new()
        .with_connection_config(ConnectionConfig::default())
        .with_service_endpoint("trading".to_string(), "https://trading:50051".to_string())
        .with_trading_config(TradingClientConfig::default())
        .with_backtesting_config(BacktestingClientConfig::default())
        .with_ml_training_config(MLTrainingClientConfig::default());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test ServiceEndpoints with custom values
#[test]
fn test_service_endpoints_custom() {
    let endpoints = ServiceEndpoints {
        trading_engine: "https://trading.example.com:50051".to_string(),
        market_data: "https://market-data.example.com:50052".to_string(),
        backtesting_service: "https://backtesting.example.com:50053".to_string(),
        ml_training_service: "https://ml.example.com:50054".to_string(),
    };

    assert_eq!(endpoints.trading_engine, "https://trading.example.com:50051");
    assert_eq!(endpoints.market_data, "https://market-data.example.com:50052");
}

/// Test ServiceEndpoints debug formatting
#[test]
fn test_service_endpoints_debug() {
    let endpoints = ServiceEndpoints::localhost();
    let debug_str = format!("{:?}", endpoints);

    assert!(debug_str.contains("ServiceEndpoints"));
}

/// Test ClientFactory add_service
#[tokio::test]
async fn test_client_factory_add_service() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config.clone());

    let result = factory.add_service("test_service".to_string(), config).await;
    assert!(result.is_ok());
}

/// Test ClientFactory get_connection_stats
#[tokio::test]
async fn test_client_factory_get_connection_stats() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    let stats = factory.get_connection_stats().await;
    assert!(stats.is_empty()); // Default implementation returns empty
}

/// Test ClientFactory shutdown
#[tokio::test]
async fn test_client_factory_shutdown() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    // Should complete without error
    factory.shutdown().await;
}

/// Test ClientFactory debug formatting
#[test]
fn test_client_factory_debug() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config);

    let debug_str = format!("{:?}", factory);
    assert!(debug_str.contains("ClientFactory"));
}

/// Test ServiceEndpoints with empty strings
#[test]
fn test_service_endpoints_empty() {
    let endpoints = ServiceEndpoints {
        trading_engine: "".to_string(),
        market_data: "".to_string(),
        backtesting_service: "".to_string(),
        ml_training_service: "".to_string(),
    };

    assert!(endpoints.trading_engine.is_empty());
    assert!(endpoints.market_data.is_empty());
}

/// Test ServiceEndpoints round-trip serialization
#[test]
fn test_service_endpoints_roundtrip() {
    let original = ServiceEndpoints::localhost();
    let json = serde_json::to_string(&original).unwrap();
    let deserialized: ServiceEndpoints = serde_json::from_str(&json).unwrap();

    assert_eq!(deserialized.trading_engine, original.trading_engine);
    assert_eq!(deserialized.market_data, original.market_data);
    assert_eq!(deserialized.backtesting_service, original.backtesting_service);
    assert_eq!(deserialized.ml_training_service, original.ml_training_service);
}

/// Test TliClientBuilder with only trading config
#[test]
fn test_tli_client_builder_trading_only() {
    let builder = TliClientBuilder::new()
        .with_service_endpoint("trading".to_string(), "https://trading:50051".to_string())
        .with_trading_config(TradingClientConfig::default());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with only backtesting config
#[test]
fn test_tli_client_builder_backtesting_only() {
    let builder = TliClientBuilder::new()
        .with_service_endpoint("backtesting".to_string(), "https://backtesting:50052".to_string())
        .with_backtesting_config(BacktestingClientConfig::default());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test TliClientBuilder with only ml config
#[test]
fn test_tli_client_builder_ml_only() {
    let builder = TliClientBuilder::new()
        .with_service_endpoint("ml".to_string(), "https://ml:50053".to_string())
        .with_ml_training_config(MLTrainingClientConfig::default());

    assert!(format!("{:?}", builder).contains("TliClientBuilder"));
}

/// Test ClientFactory with multiple service additions
#[tokio::test]
async fn test_client_factory_multiple_services() {
    let config = ConnectionConfig::default();
    let factory = ClientFactory::new(config.clone());

    // Add multiple services
    for i in 0..5 {
        let service_name = format!("service_{}", i);
        let result = factory.add_service(service_name, config.clone()).await;
        assert!(result.is_ok());
    }
}

/// Test ClientFactory concurrent service additions
#[tokio::test]
async fn test_client_factory_concurrent_additions() {
    use std::sync::Arc;

    let config = ConnectionConfig::default();
    let factory = Arc::new(ClientFactory::new(config.clone()));

    let mut handles = vec![];
    for i in 0..10 {
        let factory_clone = factory.clone();
        let config_clone = config.clone();
        let handle = tokio::spawn(async move {
            let service_name = format!("service_{}", i);
            factory_clone.add_service(service_name, config_clone).await
        });
        handles.push(handle);
    }

    for handle in handles {
        let result = handle.await.unwrap();
        assert!(result.is_ok());
    }
}

/// Test ServiceEndpoints with IPv6 addresses
#[test]
fn test_service_endpoints_ipv6() {
    let endpoints = ServiceEndpoints {
        trading_engine: "https://[::1]:50051".to_string(),
        market_data: "https://[2001:db8::1]:50052".to_string(),
        backtesting_service: "https://[::1]:50053".to_string(),
        ml_training_service: "https://[::1]:50054".to_string(),
    };

    assert!(endpoints.trading_engine.contains("[::1]"));
    assert!(endpoints.market_data.contains("[2001:db8::1]"));
}