use serde::{Deserialize, Serialize};

/// Account state in the account-based model.
#[derive(Debug, Clone, Serialize, Deserialize, Default)]
pub struct AccountState {
    pub balance: u64,
    pub nonce: u64,
}

impl AccountState {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn with_balance(balance: u64) -> Self {
        AccountState { balance, nonce: 0 }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_default_account() {
        let account = AccountState::new();
        assert_eq!(account.balance, 0);
        assert_eq!(account.nonce, 0);
    }
}