use spin::Lazy;

pub static KERNEL_STATE: Lazy<spin::Mutex<KernelInternalState>> =
    Lazy::new(|| spin::Mutex::new(KernelInternalState::new()));

pub struct KernelInternalState {
    pub hostname: String,
    should_shutdown: bool,
}

impl KernelInternalState {
    pub fn new() -> Self {
        Self {
            should_shutdown: false,
            hostname: "".to_string(),
        }
    }

    pub fn set_hostname(&mut self, hostname: String) {
        self.hostname = hostname;
    }
    pub fn shutdown(&mut self) {
        self.should_shutdown = true;
    }
    pub fn update_state(&mut self) {
        if self.should_shutdown {
            crate::arch::shutdown();
        }
    }
}

impl Default for KernelInternalState {
    fn default() -> Self {
        Self::new()
    }
}