import CITA

let testnetUrl = URL(string: "http://121.196.200.225:1337")! // Or use any other network
// let testnetUrl = URL(string: "https://node.cryptape.com")! // Also available
let provider = HTTPProvider(testnetUrl)

let cita = CITA(provider: provider)
let peerCount = cita.rpc.peerCount().value!

let privateKey = "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
guard let metaData = try? cita.rpc.getMetaData(), let blockNumber = try? cita.rpc.blockNumber() else {
    return
}
let metaData = try? cita.rpc.getMetaData()
let tx = Transaction(
    to: Address("0x0000000000000000000000000000000000000000"),
    nonce: UUID().uuidString, // Generate a random/unique nonce string
    quota: 1_000_000, // Use 1,000,000 as default quota for sending a transaction
    validUntilBlock: blockNumber + 88,
    data: Data.fromHex("6060604...")!,
    chainId: metaData.chainId,
    version: metaData.version

)
guard let signed = try? Signer().sign(transaction: tx, with: privateKey) else {
    print("Sign fail")
}

DispatchQueue.global().async {
    do {
        let peerCount = try cita.rpc.peerCount()
        DispatchQueue.main.async {
            print("CITA peer count: \(count)")
        }
    } catch let error {
        DispatchQueue.main.async {
            print(error.localizedDescription)
        }
    }
}

/// Get the number of CITA peers currently connected to the client.
///
/// - Returns: Peer count.
func peerCount() throws -> BigUInt

/// Get the number of most recent block.
///
/// - Returns: Current block height.
func blockNumber() throws -> UInt64

/// Send signed transaction to CITA.
///
/// - Parameter signedTx: Signed transaction hex string.
///
/// - Returns: Transaction hash.
func sendRawTransaction(signedTx: String) throws -> String

/// Get a block by hash.
///
/// - Parameters:
///     - hash: The block hash hex string.
///     - fullTransactions: Whether to include transactions in the block object.
///
/// - Returns: The block object matching the hash.
func getBlockByHash(hash: String, fullTransactions: Bool = false) throws -> Block

/// Get a block by number.
///
/// - Parameters:
///     - number: The block number.
///     - fullTransactions: Whether to include transactions in the block object.
///
/// - Returns: The block object matching the number.
func getBlockByNumber(number: BigUInt, fullTransactions: Bool = false) throws -> Block

/// Get the receipt of a transaction by transaction hash.
///
/// - Parameter txhash: transaction hash hex string.
///
/// - Returns: The receipt of transaction matching the txhash.
func getTransactionReceipt(txhash: String) throws -> TransactionReceipt

/// Get all logs matching a given filter object.
///
/// - Parameter filter: The filter object.
///
/// - Returns: An array of all logs matching the filter.
func getLogs(filter: Filter) throws -> [EventLog]

/// Execute a new call immediately on a contract.
///
/// - Parameters:
///    - request: A call request.
///    - blockNumber: A block number
///
/// - Returns: The call result as hex string.
func call(request: CallRequest, blockNumber: String = "latest") throws -> String

/// Get a transaction for a given hash.
///
/// - Parameter txhash: The transaction hash hex string.
///
/// - Returns: A transaction details object.
func getTransaction(txhash: String) throws -> TransactionDetails

/// Get the number of transactions sent from an address.
///
/// - Parameters:
///    - address: An address to check for transaction count for.
///    - blockNumber: A block number.
///
/// - Returns: The number of transactions.
func getTransactionCount(address: String, blockNumber: String = "latest") throws -> BigUInt

/// Get code at a given address.
///
/// - Parameters:
///    - address: An address of the code.
///    - blockNumber: A block number.
///
/// - Returns: The code at the given address.
func getCode(address: String, blockNumber: String = "latest") throws -> String

/// Get ABI at a given address.
///
/// - Parameters:
///    - address: An address of the ABI.
///    - blockNumber: A block number.
///
/// - Returns: The ABI at the given address.
func getAbi(address: String, blockNumber: String = "latest") throws -> String

/// Get the balance of the account of given address.
///
/// - Parameters:
///    - address: An address.
///    - blockNumber: A block number.
///
/// - Returns: The balance of the account of the give address.
func getBalance(address: String, blockNumber: String = "latest") throws -> BigUInt

/// Create a new filter object.
///
/// - Parameter filter: The filter option object.
///
/// - Returns: ID of the new filter.
func newFilter(filter: Filter) throws -> BigUInt

/// Create a new block filter object.
///
/// - Parameter filter: The filter option object.
///
/// - Returns: ID of the new block filter.
func newBlockFilter() throws -> BigUInt

/// Uninstall a filter. Should always be called when watch is no longer needed.
/// Additonally Filters timeout when they aren't requested with getFilterChanges for a period of time.
///
/// - Parameter filterID: ID of the filter to uninstall.
///
/// - Returns: True if the filter was successfully uninstalled, otherwise false.
func uninstallFilter(filterID: BigUInt) throws -> Bool

/// Get an array of logs which occurred since last poll.
///
/// - Parameter filterID: ID of the filter to get changes from.
///
/// - Returns: An array of logs which occurred since last poll.
func getFilterChanges(filterID: BigUInt) throws -> [EventLog]

/// Get an array of all logs matching filter with given id.
///
/// - Parameter filterID: ID of the filter to get logs from.
///
/// - Returns: An array of logs matching the given filter id.
func getFilterLogs(filterID: BigUInt) throws -> [EventLog]

/// Get transaction proof by a given transaction hash.
///
/// - Parameter txhash: The transaction hash.
///
/// - Returns: A proof include transaction, receipt, receipt merkle tree proof, block header.
///     There will be a tool to verify the proof and extract some info.
func getTransactionProof(txhash: String) throws -> String

/// Get CITA metadata by a given block height.
///
/// - Parameter blockNumber: The block height, hex string integer or "latest".
///
/// - Returns: Metadata of given block height.
func getMetaData(blockNumber: String = "latest") throws -> MetaData

/// Get block header by a given block height.
///
/// - Parameter blockNumber: The block height, hex string integer or "latest".
///
/// - Returns: block header of the given block height.
func getBlockHeader(blockNumber: String = "latest") throws -> String

/// Get state proof of special value. Include address, account proof, key, value proof.
///
/// - Parameters:
///    - address: An address.
///    - key: A key, position of the variable.
///    - blockNumber: The block number, hex string integer, or the string "latest", "earliest".
///
/// - Returns: State proof of special value. Include address, account proof, key, value proof.
func getStateProof(address: String, key: String, blockNumber: String = "latest") throws -> String