extern crate shuttle_sdk;
use std::str::FromStr;
use shuttle_sdk::{Amount, KeyPair, Result, Server};
use shuttle_sdk::{Account, Network, OperationBuilder, TransactionBuilder};

const TESTNET_URL: &'static str = "https://horizon-testnet.stellar.org";

fn create_account() -> Result<()> {
    let keypair = KeyPair::random()?;
    let public_key = keypair.public_key();
    let account_id = public_key.account_id()?;
    println!("Funding account {}", account_id);

    let server = Server::new(TESTNET_URL)?;
    let network = Network::test_network();
    // Fund account
    server.friendbot(&public_key)?.send()?;

    let new_keypair = KeyPair::random()?;
    println!("creating {}", &new_keypair.public_key().account_id()?);

    // Retrieve sequence number
    let account_details = server.accounts().account_id(&public_key)?.send()?;
    let mut account = Account::new(public_key.clone(), account_details.sequence);
    let tx = TransactionBuilder::new(&mut account)
        .operation(
            OperationBuilder::create_account(
                new_keypair.public_key().clone(),
                Amount::from_str("20.0")?,
            ).build(),
        )
        .build();
    let signed_tx = tx.sign(&keypair, &network)?;

    println!("Submitting tx");
    let response = server.submit_transaction(&signed_tx)?.send()?;
    println!("response = {:?}", response);
    Ok(())
}

fn main() {
    create_account().unwrap();
}