use anyhow::{Result, anyhow};
use tokio::try_join;

use crate::config::ConfigOpts;
use crate::consul_actor::ConsulActor;
use crate::fw_actor::FirewallActor;
use crate::igd_actor::IgdActor;

pub struct Diplonat {
  consul: ConsulActor,

  firewall: Option<FirewallActor>,
  igd: Option<IgdActor>,
}

impl Diplonat {
  pub async fn new() -> Result<Self> {
    let config = ConfigOpts::from_env()?;
    println!("{:#?}", config);
    
    let consul_actor = ConsulActor::new(config.consul);

    let firewall_actor = FirewallActor::new(
        config.firewall,
        &consul_actor.rx_open_ports
    ).await?;
    
    let igd_actor = IgdActor::new(
      config.igd,
      &consul_actor.rx_open_ports
    ).await?;

    if firewall_actor.is_none() && igd_actor.is_none() {
      return Err(anyhow!(
        "At least enable *one* module, otherwise it's boring!"));
    }

    let ctx = Self {
      consul: consul_actor,
      firewall: firewall_actor,
      igd: igd_actor,
    };

    return Ok(ctx);
  }

  pub async fn listen(&mut self) -> Result<()> {
    let firewall = &mut self.firewall;
    let igd = &mut self.igd;

    try_join!(
      self.consul.listen(),
      async {
        match firewall {
          Some(x) => x.listen().await,
          None => Ok(())
        }
      },
      async {
        match igd {
          Some(x) => x.listen().await,
          None => Ok(())
        }
      },
    )?;

    return Ok(());
  }
}