const { ethers } = require("hardhat");

async function main() {
    console.log("Deploying Meridian Protocol contracts...");
    
    const [deployer] = await ethers.getSigners();
    console.log("Deploying with account:", deployer.address);
    console.log("Account balance:", (await deployer.getBalance()).toString());

    // 1. Deploy Compliance contract
    console.log("\n1. Deploying Compliance contract...");
    const Compliance = await ethers.getContractFactory("Compliance");
    const compliance = await Compliance.deploy(deployer.address);
    await compliance.deployed();
    console.log("Compliance deployed to:", compliance.address);

    // 2. Deploy ReserveAggregator contract
    console.log("\n2. Deploying ReserveAggregator contract...");
    const ReserveAggregator = await ethers.getContractFactory("ReserveAggregator");
    const reserveAggregator = await ReserveAggregator.deploy(deployer.address);
    await reserveAggregator.deployed();
    console.log("ReserveAggregator deployed to:", reserveAggregator.address);

    // 3. Deploy MeridianToken for GBP
    console.log("\n3. Deploying MeridianToken (MGBP)...");
    const MeridianToken = await ethers.getContractFactory("MeridianToken");
    const mgbp = await MeridianToken.deploy(
        "Meridian GBP", // name
        "MGBP",         // symbol
        "GBP",          // currency
        "Meridian LLC", // issuer name
        reserveAggregator.address,
        compliance.address,
        deployer.address // admin
    );
    await mgbp.deployed();
    console.log("MGBP Token deployed to:", mgbp.address);

    // 4. Configure initial settings
    console.log("\n4. Configuring initial settings...");
    
    // Set up KYC levels in compliance contract
    await compliance.updateKYCLevelLimits(1, ethers.utils.parseEther("1000"), ethers.utils.parseEther("10000"));
    await compliance.updateKYCLevelLimits(2, ethers.utils.parseEther("10000"), ethers.utils.parseEther("100000"));
    await compliance.updateKYCLevelLimits(3, ethers.utils.parseEther("100000"), ethers.utils.parseEther("1000000"));
    
    // Add deployer to KYC whitelist for testing
    await compliance.whitelistAddress(deployer.address, 3, "UK", 0);
    console.log("Deployer whitelisted for testing");

    // 5. Add initial custodian (placeholder for Anchorage)
    console.log("\n5. Adding initial custodian...");
    const custodianId = ethers.utils.keccak256(ethers.utils.toUtf8Bytes("anchorage-gbp"));
    await reserveAggregator.addCustodian(
        custodianId,
        "Anchorage Digital GBP",
        deployer.address, // placeholder oracle address
        3600, // 1 hour heartbeat
        2     // fund admin type for manual attestation
    );
    console.log("Initial custodian added");

    // 6. Display deployment summary
    console.log("\n=== DEPLOYMENT SUMMARY ===");
    console.log("Network:", network.name);
    console.log("Deployer:", deployer.address);
    console.log("");
    console.log("Contract Addresses:");
    console.log("- Compliance:", compliance.address);
    console.log("- ReserveAggregator:", reserveAggregator.address);
    console.log("- MGBP Token:", mgbp.address);
    console.log("");
    console.log("Token Details:");
    console.log("- Name:", await mgbp.name());
    console.log("- Symbol:", await mgbp.symbol());
    console.log("- Currency:", await mgbp.currency());
    console.log("- Issuer:", await mgbp.issuerName());
    console.log("- Min Collateral Ratio:", (await mgbp.minimumCollateralRatio()).toString() + " (basis points * 100)");
    console.log("");
    console.log("Next Steps:");
    console.log("1. Add real custodian oracles to ReserveAggregator");
    console.log("2. Attest initial reserves");
    console.log("3. Set up Chainlink PoR feeds");
    console.log("4. Configure production KYC whitelist");
    console.log("5. Verify contracts on Etherscan");

    // Save deployment addresses to file
    const fs = require('fs');
    const deploymentInfo = {
        network: network.name,
        timestamp: new Date().toISOString(),
        deployer: deployer.address,
        contracts: {
            Compliance: compliance.address,
            ReserveAggregator: reserveAggregator.address,
            MGBP: mgbp.address
        },
        custodianId: custodianId
    };
    
    fs.writeFileSync(
        `deployment-${network.name}.json`, 
        JSON.stringify(deploymentInfo, null, 2)
    );
    console.log(`\nDeployment info saved to deployment-${network.name}.json`);
}

main()
    .then(() => process.exit(0))
    .catch((error) => {
        console.error(error);
        process.exit(1);
    });