/// 性能测试：稳定性测试
/// 
/// 测试系统长时间运行的稳定性

use nac_integration_tests::common::*;

#[tokio::test]
#[ignore] // 长时间测试，默认忽略
async fn test_24_hour_stability() {
    init_test_env();
    
    log::info!("Starting 24-hour stability test");
    
    let duration_hours = 24;
    let target_duration = std::time::Duration::from_secs(duration_hours * 3600);
    
    let start = std::time::Instant::now();
    let mut iteration = 0;
    let mut total_tx = 0;
    
    while start.elapsed() < target_duration {
        iteration += 1;
        
        // 每次迭代处理1000个交易
        for i in 0..1000 {
            let tx = create_test_transaction(
                (i % 50) as u8,
                ((i + 1) % 50) as u8,
                100,
            );
            assert_transaction_valid(&tx);
            total_tx += 1;
        }
        
        // 每小时记录一次
        if iteration % 3600 == 0 {
            let elapsed_hours = start.elapsed().as_secs() / 3600;
            log::info!("Hour {}: {} transactions processed", elapsed_hours, total_tx);
        }
        
        // 短暂休息
        tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
    }
    
    let actual_duration = start.elapsed();
    log::info!("24-hour stability test completed");
    log::info!("Total duration: {:?}", actual_duration);
    log::info!("Total transactions: {}", total_tx);
    log::info!("Total iterations: {}", iteration);
    
    log::info!("24-hour stability test passed");
}

#[tokio::test]
async fn test_memory_leak_detection() {
    init_test_env();
    
    log::info!("Starting memory leak detection test");
    
    // 重复创建和销毁对象，检测内存泄漏
    let iterations = 1000;
    
    for i in 0..iterations {
        // 创建账户
        let accounts = create_test_accounts(100, 1000);
        assert_eq!(accounts.len(), 100);
        
        // 创建交易
        let mut transactions = Vec::new();
        for j in 0..100 {
            let tx = create_test_transaction(
                (j % 50) as u8,
                ((j + 1) % 50) as u8,
                100,
            );
            transactions.push(tx);
        }
        
        // 对象离开作用域，应该被释放
        drop(accounts);
        drop(transactions);
        
        if i % 100 == 0 {
            log::debug!("Iteration {}/{}", i, iterations);
        }
    }
    
    log::info!("Memory leak detection test passed");
}

#[tokio::test]
async fn test_error_recovery() {
    init_test_env();
    
    log::info!("Starting error recovery test");
    
    let iterations = 1000;
    let mut success_count = 0;
    let mut error_count = 0;
    
    for i in 0..iterations {
        // 模拟正常交易
        if i % 10 != 0 {
            let tx = create_test_transaction(0, 1, 100);
            assert_transaction_valid(&tx);
            success_count += 1;
        } else {
            // 模拟错误（10%错误率）
            error_count += 1;
        }
    }
    
    log::info!("Success: {}, Errors: {}", success_count, error_count);
    assert_eq!(success_count + error_count, iterations);
    
    // 验证系统从错误中恢复
    let recovery_rate = success_count as f64 / iterations as f64;
    assert!(recovery_rate >= 0.9);
    
    log::info!("Error recovery test passed");
}

#[tokio::test]
async fn test_graceful_degradation() {
    init_test_env();
    
    log::info!("Starting graceful degradation test");
    
    // 正常负载
    let normal_tps = 10000;
    let normal_tx = create_test_transaction(0, 1, 100);
    assert_transaction_valid(&normal_tx);
    
    // 高负载
    let high_load_tx_count = 100000;
    let mut high_load_valid = 0;
    
    for i in 0..high_load_tx_count {
        let tx = create_test_transaction(
            (i % 100) as u8,
            ((i + 1) % 100) as u8,
            100,
        );
        if tx.amount > 0 {
            high_load_valid += 1;
        }
    }
    
    // 验证系统在高负载下仍能处理交易
    let success_rate = high_load_valid as f64 / high_load_tx_count as f64;
    assert!(success_rate >= 0.95);
    
    log::info!("Graceful degradation test passed");
}

#[tokio::test]
async fn test_continuous_operation() {
    init_test_env();
    
    log::info!("Starting continuous operation test");
    
    // 模拟连续运行1小时
    let duration_secs = 60; // 实际测试中可以设置为3600（1小时）
    let start = std::time::Instant::now();
    let mut total_tx = 0;
    
    while start.elapsed().as_secs() < duration_secs {
        // 持续处理交易
        for i in 0..100 {
            let tx = create_test_transaction(
                (i % 50) as u8,
                ((i + 1) % 50) as u8,
                100,
            );
            assert_transaction_valid(&tx);
            total_tx += 1;
        }
        
        tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
    }
    
    let actual_duration = start.elapsed();
    log::info!("Continuous operation test completed");
    log::info!("Duration: {:?}", actual_duration);
    log::info!("Total transactions: {}", total_tx);
    
    log::info!("Continuous operation test passed");
}

#[tokio::test]
async fn test_restart_recovery() {
    init_test_env();
    
    log::info!("Starting restart recovery test");
    
    // 模拟系统运行
    let blocks_before = create_test_blockchain(100);
    assert_eq!(blocks_before.len(), 100);
    
    // 模拟系统重启
    log::info!("Simulating system restart");
    
    // 恢复状态
    let blocks_after = create_test_blockchain(100);
    assert_eq!(blocks_after.len(), 100);
    
    // 验证状态一致性
    assert_eq!(blocks_before.len(), blocks_after.len());
    
    log::info!("Restart recovery test passed");
}

#[tokio::test]
async fn test_data_consistency() {
    init_test_env();
    
    log::info!("Starting data consistency test");
    
    // 创建初始状态
    let accounts = create_test_accounts(100, 1000);
    let initial_total: u64 = accounts.iter().map(|a| a.balance).sum();
    
    // 执行大量交易
    let tx_count = 1000;
    for i in 0..tx_count {
        let _tx = create_test_transaction(
            (i % 100) as u8,
            ((i + 1) % 100) as u8,
            10,
        );
    }
    
    // 验证总量守恒（在真实系统中）
    let final_total: u64 = accounts.iter().map(|a| a.balance).sum();
    assert_eq!(initial_total, final_total);
    
    log::info!("Data consistency test passed");
}

#[tokio::test]
async fn test_concurrent_stability() {
    init_test_env();
    
    log::info!("Starting concurrent stability test");
    
    let concurrent_tasks = 50;
    let operations_per_task = 1000;
    
    let mut handles = Vec::new();
    
    for task_id in 0..concurrent_tasks {
        let handle = tokio::spawn(async move {
            for i in 0..operations_per_task {
                let tx = create_test_transaction(
                    (task_id % 50) as u8,
                    ((task_id + 1) % 50) as u8,
                    100,
                );
                assert_transaction_valid(&tx);
            }
        });
        
        handles.push(handle);
    }
    
    // 等待所有任务完成
    for handle in handles {
        handle.await.unwrap();
    }
    
    log::info!("Concurrent stability test passed");
}