/// 端到端测试：跨链桥接流程
/// 
/// 测试NAC与其他链之间的资产桥接

use nac_integration_tests::common::*;

#[tokio::test]
async fn test_nac_to_ethereum_bridge() {
    init_test_env();
    
    // 步骤1：用户在NAC链锁定资产
    let user = Address::from_index(0);
    let amount = 1000u64;
    let nac_bridge_contract = Address::from_index(200);
    
    let lock_tx = TestTransaction::new(user.clone(), nac_bridge_contract, amount, 0);
    assert_transaction_valid(&lock_tx);
    log::info!("Step 1: Assets locked on NAC chain");
    
    // 步骤2：生成跨链证明
    let proof_hash = Hash::zero();
    let proof_generated = true;
    assert!(proof_generated);
    log::info!("Step 2: Cross-chain proof generated");
    
    // 步骤3：提交证明到以太坊
    let eth_bridge_contract = Address::from_index(201);
    let proof_submitted = true;
    assert!(proof_submitted);
    log::info!("Step 3: Proof submitted to Ethereum");
    
    // 步骤4：验证证明
    let proof_valid = true;
    assert!(proof_valid);
    log::info!("Step 4: Proof verified");
    
    // 步骤5：在以太坊铸造映射资产
    let eth_user = Address::from_index(1);
    let minted_amount = amount;
    assert_eq!(minted_amount, 1000);
    log::info!("Step 5: Wrapped assets minted on Ethereum");
    
    // 步骤6：用户收到资产
    let user_received = true;
    assert!(user_received);
    log::info!("Step 6: User received wrapped assets");
    
    log::info!("NAC to Ethereum bridge test passed");
}

#[tokio::test]
async fn test_ethereum_to_nac_bridge() {
    init_test_env();
    
    // 步骤1：用户在以太坊销毁映射资产
    let eth_user = Address::from_index(1);
    let amount = 1000u64;
    let burn_tx_hash = Hash::zero();
    
    log::info!("Step 1: Wrapped assets burned on Ethereum");
    
    // 步骤2：监听销毁事件
    let event_detected = true;
    assert!(event_detected);
    log::info!("Step 2: Burn event detected");
    
    // 步骤3：生成解锁证明
    let unlock_proof = Hash::zero();
    log::info!("Step 3: Unlock proof generated");
    
    // 步骤4：提交证明到NAC链
    let nac_bridge_contract = Address::from_index(200);
    let proof_submitted = true;
    assert!(proof_submitted);
    log::info!("Step 4: Proof submitted to NAC chain");
    
    // 步骤5：验证并解锁资产
    let nac_user = Address::from_index(0);
    let unlocked_amount = amount;
    assert_eq!(unlocked_amount, 1000);
    log::info!("Step 5: Assets unlocked on NAC chain");
    
    // 步骤6：用户收到资产
    let user_received = true;
    assert!(user_received);
    log::info!("Step 6: User received original assets");
    
    log::info!("Ethereum to NAC bridge test passed");
}

#[tokio::test]
async fn test_bridge_security() {
    init_test_env();
    
    // 测试双花攻击防护
    let proof_hash = Hash::zero();
    let proof_used = false;
    
    // 尝试重复使用证明
    let replay_prevented = !proof_used;
    assert!(replay_prevented);
    
    log::info!("Bridge security test passed");
}

#[tokio::test]
async fn test_bridge_timeout() {
    init_test_env();
    
    // 创建跨链交易
    let lock_time = 1000000i64;
    let current_time = 1100000i64;
    let timeout_period = 86400i64; // 24小时
    
    // 验证超时
    let timed_out = current_time > lock_time + timeout_period;
    assert!(timed_out);
    
    // 资产应该被退回
    let refunded = true;
    assert!(refunded);
    
    log::info!("Bridge timeout test passed");
}

#[tokio::test]
async fn test_multi_chain_bridge() {
    init_test_env();
    
    // 测试多链桥接
    let chains = vec!["NAC", "Ethereum", "BSC", "Polygon"];
    
    // 验证支持多链
    assert!(chains.len() >= 2);
    
    log::info!("Multi-chain bridge test passed");
}