//! A handle is a u128 with a set of permissions
//! and a resource connected to it

use crate::Path;
use crate::{arch::generate_process_pass, channels::Channel};
use core::fmt::Display;

#[derive(Debug)]
pub struct BinaryData {
    name: String,
    data: Vec<u8>,
}

#[derive(Debug)]
pub enum HandleResource {
    Channel(Channel),
    // Device
    BinaryData(BinaryData),
}

#[derive(Debug)]
pub struct Handle {
    inner: u128,
    res: HandleResource,
}

impl Display for Handle {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        write!(f, "Handle-{:032x}", self.inner)?;
        match &self.res {
            HandleResource::Channel(_) => write!(f, "-Channel")?,
            HandleResource::BinaryData(data) => write!(f, "-Binary-{}", &data.name)?,
        }

        Ok(())
    }
}

use crate::handle::HandleResource::*;
impl Handle {
    pub fn from_channel(channel: Channel) -> Self {
        Self {
            inner: generate_process_pass(),
            res: Channel(channel),
        }
    }
}