// Import SDK entrypoint component.
import { TBTC } from "@keep-network/tbtc-v2.ts"

// Create an instance of ethers signer.
const signer = (...)

// Initialize the SDK for Ethereum only.
const sdk = await TBTC.initializeMainnet(signer)

// Access SDK features.
sdk.deposits.(...)
sdk.redemptions.(...)

// Access tBTC smart contracts directly.
sdk.tbtcContracts.(...)

// Access Bitcoin client directly.
sdk.bitcoinClient.(...)

// Import SDK entrypoint component.
import { TBTC } from "@keep-network/tbtc-v2.ts"

// Create an instance of ethers provider.
const ethProvider = (...)

// Create an instance of ethers signer.
const arbitrumSigner = (...)

// Initialize the SDK for Ethereum only.
const sdk = await TBTC.initializeMainnet(ethProvider, true)

// Initialize it for any L2 (E.g., Arbitrum)
await sdk.initializeCrossChain("Arbitrum", arbitrumSigner);

// Access SDK features.
sdk.deposits.(...)
sdk.redemptions.(...)

// Access tBTC smart contracts directly.
sdk.tbtcContracts.(...)

// Access Bitcoin client directly.
sdk.bitcoinClient.(...)

import * as ethers from "ethers"
import { TBTC } from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass the URL of an Ethereum mainnet node.
// For example, Alchemy or Infura.
const provider = new ethers.providers.JsonRpcProvider("...")
// Create an Ethers signer. Pass the private key and the above provider.
const signer = new ethers.Wallet("...", provider)

// If you want to initialize the SDK just for read-only actions, it is
// enough to pass the provider. 
const sdkReadonly = await TBTC.initializeMainnet(provider)
// If you want to make transactions as well, you have to pass the signer.
const sdk = await TBTC.initializeMainnet(signer)

import * as ethers from "ethers"
import { TBTC } from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass the URL of an Ethereum and Arbitrum mainnet node.
// For example, Alchemy or Infura.
const ethProvider = new ethers.providers.JsonRpcProvider("...")
const arbProvider = new ethers.providers.JsonRpcProvider("...")

// Create an Ethers signer. Pass the private key and the above provider.
const arbSigner = new ethers.Wallet("...", provider)

// If you want to initialize the SDK, it is enough to pass the provider.
const sdk = await TBTC.initializeMainnet(ethProvider, true)

// Initialize cross-chain functionality for TBTC on Arbitrum
await sdk.initializeCrossChain("Arbitrum", arbSigner);

// The SDK will be ready to launch read and write in Arbitrum. 

import * as ethers from "ethers"
import { TBTC } from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass the URL of an Ethereum and Arbitrum testnet node.
// For example, Alchemy or Infura.
const ethProvider = new ethers.providers.JsonRpcProvider("...")
const arbProvider = new ethers.providers.JsonRpcProvider("...")

// Create an Ethers signer. Pass the private key and the above provider.
const arbSigner = new ethers.Wallet("...", provider)

// If you want to initialize the SDK, it is enough to pass the provider.
const sdk = await TBTC.initializeSepolia(ethProvider, true)

// Initialize cross-chain functionality for TBTC on Arbitrum
await sdk.initializeCrossChain("Arbitrum", arbSigner);

// The SDK will be ready to launch read and write in Arbitrum. 

import * as ethers from "ethers"
import {
  TBTC,
  TBTCContracts,
  EthereumBridge,
  EthereumTBTCToken,
  EthereumTBTCVault,
  EthereumWalletRegistry,
  ElectrumClient,
} from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass the URL of your local Ethereum node.
const provider = new ethers.providers.JsonRpcProvider("...")
// Create an Ethers signer. Pass the private key and the above provider.
const signer = new ethers.Wallet("...", provider)

// Create a reference to your locally deployed tBTC contracts.
// ABI will be loaded from the following contract packages:
// - @keep-network/tbtc-v2
// - @keep-network/ecdsa
const tbtcContracts: TBTCContracts = {
  bridge: new EthereumBridge({address: "...", signerOrProvider: signer}),
  tbtcToken: new EthereumTBTCToken({address: "...", signerOrProvider: signer}),
  tbtcVault: new EthereumTBTCVault({address: "...", signerOrProvider: signer}),
  walletRegistry: new EthereumWalletRegistry({address: "...", signerOrProvider: signer})
}

// Create an Electrum Bitcoin client pointing to your local regtest node.
const bitcoinClient = ElectrumClient.fromUrl("...")

// Initialize the SDK.
const sdk = await TBTC.initializeCustom(tbtcContracts, bitcoinClient)

import * as ethers from "ethers"
import {
  TBTC,
  TBTCContracts,
  loadEthereumContracts,
  ElectrumClient
} from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass a URL of an Ethereum mainnet node.
// For example, Alchemy or Infura.
const provider = new ethers.providers.JsonRpcProvider("...")
// Create an Ethers signer. Pass the private key and the above provider.
const signer = new ethers.Wallet("...", provider)

// Load tBTC Ethereum mainnet contracts manually.
const tbtcContracts: TBTCContracts = await loadEthereumContracts(signer, "mainnet")

// Create an Electrum Bitcoin client pointing to your own mainnet server.
const bitcoinClient = ElectrumClient.fromUrl("...")

// Initialize the SDK with Electrum Bitcoin client pointing to your own server.
const sdk = await TBTC.initializeCustom(tbtcContracts, bitcoinClient)

import * as ethers from "ethers"
import {
  TBTC,
  TBTCContracts,
  loadEthereumContracts,
  BitcoinClient,
} from "@keep-network/tbtc-v2.ts"

// Create an Ethers provider. Pass a URL of an Ethereum mainnet node.
// For example, Alchemy or Infura.
const provider = new ethers.providers.JsonRpcProvider("...")
// Create an Ethers signer. Pass the private key and the above provider.
const signer = new ethers.Wallet("...", provider)

// Load tBTC Ethereum mainnet contracts manually.
const tbtcContracts: TBTCContracts = await loadEthereumContracts(signer, "mainnet")

// Create your own Bitcoin client implementation.
class OwnBitcoinClientImpl implements BitcoinClient {
  // Implement all required methods
}

// Initialize your own Bitcoin client implementation.
const bitcoinClient = new OwnBitcoinClientImpl()

// Initialize the SDK with your own Bitcoin client implementation.
const sdk = await TBTC.initializeCustom(tbtcContracts, bitcoinClient)

import {
  TBTC,
  TBTCContracts,
  Bridge,
  TBTCToken,
  TBTCVault,
  WalletRegistry,
  BitcoinClient,
} from "@keep-network/tbtc-v2.ts"

// Create mock Bridge contract implementation.
class MockBridge implements Bridge {
  // Implement all required methods
}

// Create mock TBTCToken contract implementation.
class MockTBTCToken implements TBTCToken {
  // Implement all required methods
}

// Create mock TBTCVault contract implementation.
class MockTBTCVault implements TBTCVault {
  // Implement all required methods
}

// Create mock WalletRegistry contract implementation.
class MockWalletRegistry implements WalletRegistry {
  // Implement all required methods
}

// Create mock BitcoinClient contract implementation.
class MockBitcoinClient implements BitcoinClient {
  // Implement all required methods
}

// Create instances of the mock contracts.
const tbtcContracts: TBTCContracts = {
  bridge: new MockBridge(),
  tbtcToken: new MockTBTCToken(),
  tbtcVault: new MockTBTCVault(),
  walletRegistry: new MockWalletRegistry()
}

// Create an instance of the mock Bitcoin client.
const bitcoinClient = new MockBitcoinClient()

// Initialize the SDK.
const sdk = await TBTC.initializeCustom(tbtcContracts, bitcoinClient)

import { TBTC } from "@keep-network/tbtc-v2.ts"

// Initialized SDK.
const sdk: TBTC

// Set the P2WPKH/P2PKH Bitcoin recovery address. It can be used to recover
// deposited BTC in case something exceptional happens.
const bitcoinRecoveryAddress: string = "..."

// Initiate the deposit.
const deposit = await sdk.deposits.initiateDeposit(bitcoinRecoveryAddress)

// Take the Bitcoin deposit address. BTC must be sent here.
const bitcoinDepositAddress = await deposit.getBitcoinAddress()

import { TBTC } from "@keep-network/tbtc-v2.ts"
import { BigNumber } from "ethers"

// Initialized SDK.
const sdk: TBTC

// Set the P2WPKH/P2PKH or P2WSH/P2SH Bitcoin redeemer address. This is the
// address where redeemed BTC will land.
const bitcoinRedeemerAddress: string = "..."

// Set the desired redemption amount using 1e18 precision. No need to do an 
// explicit approval on the TBTC token upfront.
const amount = BigNumber.from(5 * 1e18)

// Request redemption. This action will burn TBTC tokens and register a
// redemption request in the bridge. Returns the hash of the request redemption
// transaction and the target wallet public key that will handle the redemption.
const {
  targetChainTxHash,
  walletPublicKey
} = await sdk.redemptions.requestRedemption(bitcoinRedeemerAddress, amount)