// Copyright 2019-2022 Parity Technologies (UK) Ltd.
// This file is dual-licensed as Apache-2.0 or GPL-3.0.
// see LICENSE for license details.

//! To run this example, a local polkadot node should be running. Example verified against polkadot v0.9.28-9ffe6e9e3da.
//!
//! E.g.
//! ```bash
//! curl "https://github.com/paritytech/polkadot/releases/download/v0.9.28/polkadot" --output /usr/local/bin/polkadot --location
//! polkadot --dev --tmp
//! ```

use sp_core::{
    sr25519,
    Pair,
};
use sp_keyring::AccountKeyring;
use subxt::{
    utils::AccountId32,
    OnlineClient,
    PolkadotConfig,
};

// #[subxt::subxt(runtime_metadata_path = "../artifacts/polkadot_metadata.scale")]
// pub mod polkadot {}

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    tracing_subscriber::fmt::init();

    // Create a client to use:
    let api = OnlineClient::<PolkadotConfig>::new().await?;

    // let active_era_addr = polkadot::storage().staking().active_era();
    // let era = api.storage().fetch(&active_era_addr, None).await?.unwrap();
    // println!(
    //     "Staking active era: index: {:?}, start: {:?}",
    //     era.index, era.start
    // );

    // let alice_id = AccountKeyring::Alice.to_account_id();
    // println!("  Alice account id:        {:?}", alice_id);

    // // Get Alice' Stash account ID
    // let alice_stash_id: AccountId32 = sr25519::Pair::from_string("//Alice//stash", None)
    //     .expect("Could not obtain stash signer pair")
    //     .public()
    //     .into();
    // println!("  Alice//stash account id: {:?}", alice_stash_id);

    // // Map from all locked "stash" accounts to the controller account.
    // let controller_acc_addr = polkadot::storage().staking().bonded(&alice_stash_id);
    // let controller_acc = api
    //     .storage()
    //     .fetch(&controller_acc_addr, None)
    //     .await?
    //     .unwrap();
    // println!("    account controlled by: {:?}", controller_acc);

    // let era_reward_addr = polkadot::storage().staking().eras_reward_points(era.index);
    // let era_result = api.storage().fetch(&era_reward_addr, None).await?;
    // println!("Era reward points: {:?}", era_result);

    Ok(())
}