// Copyright (c) 2022 Yuki Kishimoto
// Distributed under the MIT software license

extern crate nostr_sdk_base;

use std::error::Error;
use std::str::FromStr;

use nostr_sdk_base::{Event, Keys};
use secp256k1::SecretKey;

const ALICE_SK: &str = "6b911fd37cdf5c81d4c0adb1ab7fa822ed253ab0ad9aa18d77257c88b29b718e";

fn main() -> Result<(), Box<dyn Error>> {
    env_logger::init();

    let alice_keys = Keys::new(SecretKey::from_str(ALICE_SK)?);

    let pow_difficulty = 20; // leading zero bits
    let msg_content = "This is a Nostr message with embedded proof-of-work";

    let event = Event::new_pow_text_note(&alice_keys, msg_content, &[], pow_difficulty)?;

    event.verify().unwrap();

    println!("{:#?}", event);

    Ok(())
}