pub mod httpconnector;

use std::net::IpAddr;

use crate::{client::Client, executor::Executor};
use remote_control_rs::tasks::{IntoTask, NETWORK_T};

pub type Result<T: std::fmt::Display + IntoTask, E: std::fmt::Debug> = std::result::Result<T, E>;

pub trait Connection {
    type Ok: std::fmt::Display + IntoTask + AsRef<str> = String;
    type Err: std::fmt::Debug;

    // should use channel to notify update
    fn update(&self) -> Result<Self::Ok, Self::Err>; // None if no update(content is same)

    // TODO: queue failed ntfy
    // TODO: impl type of data
    fn ntfy(&self, data: String) -> std::result::Result<(), Self::Err>;

    fn is_prev(&mut self, str: &Self::Ok) -> bool;

    fn get_ip(&self) -> Option<IpAddr>;

    fn force_network(&mut self) {
        _ = Executor::new(&NETWORK_T, ["on".to_string()]);
    }

    fn init(&self, c: &Client<Self>) -> std::result::Result<(), Self::Err>
    where
        Self: std::marker::Sized,
    {
        self.ntfy(format!(
            r#"New client:
            {c}
            "#,
        ))
    }

    fn reinit(&mut self) {
        self.force_network();
    }

    fn tick(&mut self) {
        // tradeoff: if I put this at the ened of the loop, then the continue would just skip it, and continue doing update() until with no waiting, this wastes lot of cpu/IO
        // however, of course we can add a manual sleep before it continue and put this in the end, but that's code duplication
        // the cons of the current approch is that the first time we've entered, it would start sleeping
        self.reinit();

        match self.update() {
            Result::Ok(s) => {
                if self.is_prev(&s) {
                    return;
                }

                let mut it = s.as_ref().split_whitespace();
                let task = match it.next() {
                    Some(t) => t,
                    None => return,
                };
                // FIXME: handle the errors... peak prod code
                self.ntfy(
                    Executor::new(task, it.map(str::to_string))
                        .unwrap()
                        .run()
                        .unwrap()
                        .clone()
                        .unwrap(),
                )
                .unwrap();
            }
            Result::Err(e) => {
                #[cfg(debug_assertions)]
                std::eprintln!(
                    "[{}:{}:{}] {} = {:#?}",
                    std::file!(),
                    std::line!(),
                    std::column!(),
                    std::stringify!(e),
                    &&e as &dyn std::fmt::Debug,
                );
            }
        }
    }
}