//! ACC-721唯一资产证书协议使用示例
//!
//! 本示例演示如何使用NAC SDK与ACC-721协议交互
//!
//! 运行方式：
//! ```bash
//! cargo run --example acc721_example
//! ```

use nac_sdk::client::NacLensClient;
use nac_sdk::protocols::ACC721;
use nac_sdk::error::Result;
use nac_udm::primitives::{Address, Hash, Timestamp};
use nac_udm::l1_protocol::acc::acc721::{AssetId, AssetValuation};

#[tokio::main]
async fn main() -> Result<()> {
    println!("=== NAC ACC-721 唯一资产证书协议示例 ===\n");
    
    // 1. 创建NAC Lens客户端
    println!("1. 连接到NAC节点...");
    let client = NacLensClient::new("https://rpc.newassetchain.io");
    let acc721 = ACC721::new(client);
    println!("   ✓ 已连接到NAC RPC节点\n");
    
    // 2. 准备测试数据
    println!("2. 准备测试数据...");
    let certificate_address = Address::from_hex("0x12345678901234567890123456789012345678901234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    let owner_address = Address::from_hex("0x22345678901234567890123456789012345678902234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    let custodian_address = Address::from_hex("0x42345678901234567890123456789012345678904234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    let insurer_address = Address::from_hex("0x52345678901234567890123456789012345678905234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    
    let asset_id: AssetId = 1;
    let metadata_uri = "ipfs://QmRealEstateAsset123456789".to_string();
    
    // 生成资产DNA组件
    let physical_fingerprint = Hash::sha3_384(b"3D_scan_data_of_real_estate");
    let legal_document_hash = Hash::sha3_384(b"property_deed_and_title");
    
    println!("   ✓ 证书地址: {}", certificate_address);
    println!("   ✓ 资产持有者: {}", owner_address);
    println!("   ✓ 托管方: {}", custodian_address);
    println!("   ✓ 保险方: {}", insurer_address);
    println!("   ✓ 资产ID: {}", asset_id);
    println!("   ✓ 元数据URI: {}\n", metadata_uri);
    
    // 3. 铸造唯一资产
    println!("3. 铸造唯一资产...");
    let insurance_coverage = 5_000_000_000_000_000_000u128; // 5 XTZH
    let insurance_expiry = Timestamp::from_secs(Timestamp::now().as_secs() + 365 * 24 * 3600);
    
    println!("   正在铸造资产（含DNA、托管、保险）...");
    // 注意：这是示例代码，实际运行需要连接到NAC节点
    // let asset_dna = acc721.mint_asset(
    //     &certificate_address,
    //     &owner_address,
    //     asset_id,
    //     metadata_uri.clone(),
    //     physical_fingerprint,
    //     legal_document_hash,
    //     custodian_address,
    //     insurer_address,
    //     insurance_coverage,
    //     insurance_expiry,
    // ).await?;
    // 
    // println!("   ✓ 资产铸造成功！");
    // println!("   ✓ DNA哈希: {}", asset_dna.dna_hash.to_hex());
    // println!("   ✓ 物理指纹: {}", asset_dna.physical_fingerprint.to_hex());
    // println!("   ✓ 法律文件哈希: {}\n", asset_dna.legal_document_hash.to_hex());
    
    println!("   [示例模式] 资产铸造功能已准备就绪\n");
    
    // 4. 查询资产信息
    println!("4. 查询资产信息...");
    // let holder = acc721.get_asset_holder(&certificate_address, asset_id).await?;
    // println!("   ✓ 当前持有者: {}", holder);
    // 
    // let metadata = acc721.get_asset_metadata(&certificate_address, asset_id).await?;
    // println!("   ✓ 元数据URI: {}\n", metadata);
    
    println!("   [示例模式] 资产查询功能已准备就绪\n");
    
    // 5. 查询托管信息
    println!("5. 查询托管信息...");
    // let custody_info = acc721.get_custody_info(&certificate_address, asset_id).await?;
    // println!("   ✓ 托管方: {}", custody_info.custodian);
    // println!("   ✓ 托管状态: {}", if custody_info.is_active { "托管中" } else { "已解除" });
    // println!("   ✓ 托管证明: {}\n", custody_info.custody_proof.to_hex());
    
    println!("   [示例模式] 托管信息查询功能已准备就绪\n");
    
    // 6. 查询保险信息
    println!("6. 查询保险信息...");
    // let insurance_info = acc721.get_insurance_info(&certificate_address, asset_id).await?;
    // println!("   ✓ 保险方: {}", insurance_info.insurer);
    // println!("   ✓ 保险金额: {} XTZH", insurance_info.coverage_xtzh as f64 / 1e18);
    // println!("   ✓ 保险单号: {}\n", insurance_info.policy_number);
    
    println!("   [示例模式] 保险信息查询功能已准备就绪\n");
    
    // 7. 更新资产估值
    println!("7. 更新资产估值...");
    let valuation_provider = Address::from_hex("0x62345678901234567890123456789012345678906234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    
    let valuation = AssetValuation {
        value_xtzh: 10_000_000_000_000_000_000u128, // 10 XTZH
        valuation_provider,
        valued_at: Timestamp::now(),
        validity_period: 30 * 24 * 3600, // 30天
    };
    
    // acc721.update_valuation(&certificate_address, asset_id, valuation).await?;
    // println!("   ✓ 资产估值已更新为 10 XTZH\n");
    
    println!("   [示例模式] 资产估值功能已准备就绪\n");
    
    // 8. 资产碎片化
    println!("8. 资产碎片化（NAC独有功能）...");
    let fragment_count = 1000u64;
    let fragment_price = 10_000_000_000_000_000u128; // 0.01 XTZH per fragment
    
    // let pool = acc721.fragmentize_asset(
    //     &certificate_address,
    //     &owner_address,
    //     asset_id,
    //     fragment_count,
    //     fragment_price,
    // ).await?;
    // 
    // println!("   ✓ 资产已碎片化为 {} 个ACC-20代币", fragment_count);
    // println!("   ✓ 碎片代币地址: {}", pool.fragment_token_address);
    // println!("   ✓ 每个碎片价格: {} XTZH", fragment_price as f64 / 1e18);
    // println!("   ✓ 可重组: {}\n", if pool.is_recomposable { "是" } else { "否" });
    
    println!("   [示例模式] 资产碎片化功能已准备就绪\n");
    
    // 9. 转移资产
    println!("9. 转移资产...");
    let recipient_address = Address::from_hex("0x32345678901234567890123456789012345678903234567890123456789012345678901234567890")
        .map_err(|e| nac_sdk::error::NACError::InvalidAddress(e))?;
    
    // let receipt_hash = acc721.transfer_asset(
    //     &certificate_address,
    //     &owner_address,
    //     &recipient_address,
    //     asset_id,
    // ).await?;
    // 
    // println!("   ✓ 资产转移成功！");
    // println!("   ✓ 宪法收据哈希: {}\n", receipt_hash.to_hex());
    
    println!("   [示例模式] 资产转移功能已准备就绪\n");
    
    println!("=== ACC-721示例完成 ===");
    println!("\n提示：本示例运行在演示模式。");
    println!("要连接到实际的NAC节点，请取消注释相应的代码行。");
    
    Ok(())
}