ENS Utilities

/**
 * Deploy complete ENS system for testing
 * @param signer - Signer to deploy ENS contracts with
 * @returns Promise resolving to ENS instance
 */
function deployENS(signer: Signer): Promise<ENS>;

/**
 * Create resolver contract for ENS domain resolution
 * @param signer - Signer to deploy resolver with
 * @param ens - ENS registry contract
 * @returns Promise resolving to resolver contract
 */
function createResolver(signer: Signer, ens: Contract): Promise<Contract>;

/**
 * Create reverse registrar for reverse DNS lookups
 * @param signer - Signer to deploy reverse registrar with
 * @param ens - ENS registry contract
 * @param resolver - Resolver contract
 * @returns Promise resolving to reverse registrar contract
 */
function createReverseRegistrar(
  signer: Signer, 
  ens: Contract, 
  resolver: Contract
): Promise<Contract>;

import { deployENS } from "@ethereum-waffle/ens";

// Deploy complete ENS system
const provider = new MockProvider();
const [wallet] = provider.getWallets();

const ens = await deployENS(wallet);

// ENS system is now ready for domain registration and testing
await ens.createTopLevelDomain("test");
await ens.setAddress("example.test", wallet.address);

/**
 * Complete ENS management system for testing
 */
class ENS {
  /** signer used for ENS operations */
  signer: Signer;
  /** ENS registry contract */
  ens: Contract;
  /** Default resolver contract */
  resolver: Contract;
  /** Map of TLD registrars */
  registrars: Record<string, Contract>;
  /** Reverse registrar contract */
  reverseRegistrar: Contract;

  constructor(
    signer: Signer, 
    ens: Contract, 
    resolver: Contract, 
    reverseRegistrar: Contract
  );

  /**
   * Create top-level domain (e.g., "test", "eth")
   * @param domain - TLD name without dot
   */
  createTopLevelDomain(domain: string): Promise<void>;

  /**
   * Create domain with optional recursive parent creation
   * @param domain - Full domain name (e.g., "example.test")
   * @param options - Domain registration options
   */
  createDomain(domain: string, options?: DomainRegistrationOptions): Promise<void>;

  /**
   * Create subdomain under existing domain
   * @param domain - Full subdomain name (e.g., "sub.example.test")
   * @param options - Domain registration options
   */
  createSubDomain(domain: string, options?: DomainRegistrationOptions): Promise<void>;

  /**
   * Ensure domain exists, creating parent domains if needed
   * @param domain - Domain name to ensure exists
   * @param options - Domain registration options
   */
  ensureDomainExist(domain: string, options?: DomainRegistrationOptions): Promise<void>;

  /**
   * Set address for domain resolution
   * @param domain - Domain name
   * @param address - Ethereum address to resolve to
   * @param options - Domain registration options
   */
  setAddress(domain: string, address: string, options?: DomainRegistrationOptions): Promise<void>;

  /**
   * Set address with reverse DNS entry
   * @param domain - Domain name
   * @param signer - Signer whose address to set
   * @param options - Domain registration options
   */
  setAddressWithReverse(domain: string, signer: Signer, options?: DomainRegistrationOptions): Promise<void>;
}

/**
 * Options for domain registration operations
 */
interface DomainRegistrationOptions {
  /** Create parent domains recursively if they don't exist */
  recursive?: boolean;
}

import { deployENS, ENS } from "@ethereum-waffle/ens";

const provider = new MockProvider();
const [wallet, otherWallet] = provider.getWallets();

// Deploy and setup ENS
const ens = await deployENS(wallet);

// Create domains
await ens.createTopLevelDomain("test");
await ens.createDomain("example.test");
await ens.createSubDomain("api.example.test");

// Set addresses
await ens.setAddress("example.test", wallet.address);
await ens.setAddress("api.example.test", otherWallet.address);

// Set with reverse lookup
await ens.setAddressWithReverse("wallet.test", wallet);

// Use with provider for name resolution
await provider.setupENS(wallet);
const resolvedAddress = await provider.resolveName("example.test");
console.log(resolvedAddress); // wallet.address

import { deployENS } from "@ethereum-waffle/ens";

const ens = await deployENS(wallet);

// Create nested domain structure automatically
await ens.createDomain("deeply.nested.example.test", { recursive: true });
// This creates: "test" -> "example.test" -> "nested.example.test" -> "deeply.nested.example.test"

// Set addresses for the entire hierarchy
await ens.setAddress("test", registryAddress);
await ens.setAddress("example.test", exampleAddress);
await ens.setAddress("nested.example.test", nestedAddress);
await ens.setAddress("deeply.nested.example.test", deepAddress);

import { deployENS } from "@ethereum-waffle/ens";

const ens = await deployENS(wallet);

// Create multiple top-level domains
await ens.createTopLevelDomain("test");
await ens.createTopLevelDomain("local"); 
await ens.createTopLevelDomain("dev");

// Create domains under different TLDs
await ens.createDomain("api.test");
await ens.createDomain("frontend.local");
await ens.createDomain("backend.dev");

// Set different addresses for each
await ens.setAddress("api.test", apiContractAddress);
await ens.setAddress("frontend.local", frontendAddress);
await ens.setAddress("backend.dev", backendAddress);

import { deployENS, deployContract, MockProvider } from "ethereum-waffle";

// Setup ENS and contracts
const provider = new MockProvider();
const [wallet] = provider.getWallets();

const ens = await deployENS(wallet);
const registry = await deployContract(wallet, RegistryJson);
const token = await deployContract(wallet, TokenJson);

// Register contracts with ENS
await ens.createTopLevelDomain("contracts");
await ens.setAddress("registry.contracts", registry.address);
await ens.setAddress("token.contracts", token.address);

// Setup provider to use ENS
await provider.setupENS(wallet);

// Test contract interactions using ENS names
const resolvedRegistry = await provider.resolveName("registry.contracts");
expect(resolvedRegistry).to.equal(registry.address);

// Use in other contracts
const client = await deployContract(wallet, ClientJson, ["registry.contracts"]);

import { expect } from "chai";
import { deployENS, MockProvider } from "ethereum-waffle";

describe("ENS Integration", () => {
  let provider: MockProvider;
  let wallet: Wallet;
  let ens: ENS;

  beforeEach(async () => {
    provider = new MockProvider();
    [wallet] = provider.getWallets();
    ens = await deployENS(wallet);
    await provider.setupENS(wallet);
  });

  it("should resolve domain names", async () => {
    await ens.createTopLevelDomain("test");
    await ens.setAddress("example.test", wallet.address);
    
    const resolved = await provider.resolveName("example.test");
    expect(resolved).to.equal(wallet.address);
  });

  it("should handle subdomains", async () => {
    await ens.createTopLevelDomain("test");
    await ens.createDomain("example.test");
    await ens.createSubDomain("api.example.test");
    await ens.setAddress("api.example.test", wallet.address);
    
    const resolved = await provider.resolveName("api.example.test");
    expect(resolved).to.equal(wallet.address);
  });

  it("should support reverse lookups", async () => {
    await ens.createTopLevelDomain("test");
    await ens.setAddressWithReverse("wallet.test", wallet);
    
    const reverseName = await provider.lookupAddress(wallet.address);
    expect(reverseName).to.equal("wallet.test");
  });
});