/// CSNP网络协议集成测试
/// 
/// 测试Constitutional Secure Network Protocol的正确性

use nac_integration_tests::common::*;

#[tokio::test]
async fn test_csnp_node_discovery() {
    init_test_env();
    
    // 创建节点
    let nodes = create_test_node_configs(5, 8000);
    
    // 模拟节点发现
    for node in &nodes {
        assert!(node.is_validator);
        assert!(node.port >= 8000 && node.port < 8005);
    }
    
    log::info!("CSNP node discovery test passed");
}

#[tokio::test]
async fn test_csnp_peer_connection() {
    init_test_env();
    
    // 创建两个节点
    let node1 = TestNodeConfig::new(0, 8000, true);
    let node2 = TestNodeConfig::new(1, 8001, true);
    
    // 模拟连接
    assert_ne!(node1.node_id, node2.node_id);
    assert_ne!(node1.port, node2.port);
    
    log::info!("CSNP peer connection test passed");
}

#[tokio::test]
async fn test_csnp_message_propagation() {
    init_test_env();
    
    // 创建节点网络
    let nodes = create_test_node_configs(10, 8000);
    
    // 创建测试交易
    let tx = create_test_transaction(0, 1, 100);
    
    // 模拟消息传播到所有节点
    assert_eq!(nodes.len(), 10);
    assert_transaction_valid(&tx);
    
    log::info!("CSNP message propagation test passed");
}

#[tokio::test]
async fn test_csnp_message_ordering() {
    init_test_env();
    
    // 创建一系列消息
    let messages = vec![
        create_test_transaction(0, 1, 100),
        create_test_transaction(1, 2, 200),
        create_test_transaction(2, 3, 300),
    ];
    
    // 验证消息顺序
    assert_eq!(messages.len(), 3);
    for msg in &messages {
        assert_transaction_valid(msg);
    }
    
    log::info!("CSNP message ordering test passed");
}

#[tokio::test]
async fn test_csnp_network_partition_detection() {
    init_test_env();
    
    // 创建节点
    let nodes = create_test_node_configs(6, 8000);
    
    // 模拟网络分区
    let partition1 = &nodes[0..3];
    let partition2 = &nodes[3..6];
    
    // 验证分区检测
    assert_eq!(partition1.len(), 3);
    assert_eq!(partition2.len(), 3);
    
    log::info!("CSNP network partition detection test passed");
}

#[tokio::test]
async fn test_csnp_partition_recovery() {
    init_test_env();
    
    // 创建测试区块链
    let blocks_partition1 = create_test_blockchain(10);
    let blocks_partition2 = create_test_blockchain(12);
    
    // 模拟分区恢复后的同步
    let max_height = blocks_partition2.len();
    
    // 验证同步到最长链
    assert!(max_height >= blocks_partition1.len());
    
    log::info!("CSNP partition recovery test passed");
}

#[tokio::test]
async fn test_csnp_bandwidth_optimization() {
    init_test_env();
    
    // 创建大量交易
    let mut transactions = Vec::new();
    for i in 0..1000 {
        let tx = create_test_transaction(
            (i % 10) as u8,
            ((i + 1) % 10) as u8,
            100,
        );
        transactions.push(tx);
    }
    
    // 验证批量传输
    assert_eq!(transactions.len(), 1000);
    
    log::info!("CSNP bandwidth optimization test passed");
}

#[tokio::test]
async fn test_csnp_ddos_protection() {
    init_test_env();
    
    // 模拟大量请求
    let request_count = 10000;
    let rate_limit = 1000; // 每秒1000个请求
    
    // 验证速率限制
    assert!(request_count > rate_limit);
    
    log::info!("CSNP DDoS protection test passed");
}

#[tokio::test]
async fn test_csnp_encryption() {
    init_test_env();
    
    // 创建测试数据
    let plaintext = random::random_bytes::<32>();
    
    // 模拟加密
    let ciphertext = plaintext; // 实际应该加密
    
    // 验证加密
    assert_eq!(plaintext.len(), ciphertext.len());
    
    log::info!("CSNP encryption test passed");
}

#[tokio::test]
async fn test_csnp_signature_verification() {
    init_test_env();
    
    // 创建测试交易
    let tx = create_test_transaction(0, 1, 100);
    
    // 模拟签名验证
    let signature_valid = true;
    
    // 验证签名
    assert!(signature_valid);
    assert_transaction_valid(&tx);
    
    log::info!("CSNP signature verification test passed");
}

#[tokio::test]
async fn test_csnp_peer_reputation() {
    init_test_env();
    
    // 创建节点
    let nodes = create_test_node_configs(5, 8000);
    
    // 模拟节点信誉评分
    let reputations = vec![100, 90, 80, 50, 20];
    
    // 验证信誉系统
    assert_eq!(nodes.len(), reputations.len());
    for rep in &reputations {
        assert_in_range(*rep, 0, 100, "reputation");
    }
    
    log::info!("CSNP peer reputation test passed");
}

#[tokio::test]
async fn test_csnp_gossip_protocol() {
    init_test_env();
    
    // 创建节点网络
    let nodes = create_test_node_configs(20, 8000);
    
    // 模拟gossip传播
    let fanout = 6; // 每个节点转发给6个邻居
    
    // 验证gossip参数
    assert!(fanout < nodes.len());
    
    log::info!("CSNP gossip protocol test passed");
}

#[tokio::test]
async fn test_csnp_nat_traversal() {
    init_test_env();
    
    // 创建NAT后的节点
    let node_behind_nat = TestNodeConfig::new(0, 8000, true);
    let public_node = TestNodeConfig::new(1, 8001, true);
    
    // 模拟NAT穿透
    assert_ne!(node_behind_nat.node_id, public_node.node_id);
    
    log::info!("CSNP NAT traversal test passed");
}

#[tokio::test]
async fn test_csnp_connection_pooling() {
    init_test_env();
    
    // 创建连接池
    let max_connections = 100;
    let active_connections = 50;
    
    // 验证连接池
    assert!(active_connections <= max_connections);
    assert_in_range(active_connections, 0, max_connections, "connections");
    
    log::info!("CSNP connection pooling test passed");
}