use crate::event::event::Event;
use crate::event::manager::EventHandle;
use crate::event::manager::EventManager;
use crate::event::manager::EventQueue;
use crate::packet::packet::Packet;
use crate::session::session::Session;
use std::cell::RefCell;
use std::rc::Rc;

#[derive(Clone)]
pub struct ExamplePulgin {
    plugin_name: &'static str,
    plugin_ctx: Rc<RefCell<String>>,
}

impl ExamplePulgin {
    pub fn new(plugin_name: &'static str) -> ExamplePulgin {
        ExamplePulgin {
            plugin_name,
            plugin_ctx: Rc::new(RefCell::new(String::new())),
        }
    }
}

impl EventHandle for ExamplePulgin {
    fn init(&mut self, event_mgr: &mut EventManager) {
        event_mgr.register(Event::TCPOpeningEvent, Box::new(self.clone()));
        event_mgr.register(Event::TCPActiveEvent, Box::new(self.clone()));
        event_mgr.register(Event::TCPExpireEvent, Box::new(self.clone()));
        event_mgr.register(Event::TCPClosedEvent, Box::new(self.clone()));
        event_mgr.register(Event::HTTPRequestEvent, Box::new(self.clone()));
    }

    fn handle(
        &mut self,
        event: Event,
        queue: &mut EventQueue,
        packet: Option<&Packet>,
        session: Option<Rc<RefCell<Session>>>,
    ) {
        self.plugin_ctx.borrow_mut().push_str("1");

        if session.is_none() {
            return;
        }

        if packet.is_none() {
            println!("{} handle Packet: None", self.plugin_name);
        }

        let session = session.unwrap();
        session.borrow_mut().inc_session_c2s_metrics(0, 0, 1, 1);
        match event {
            Event::TCPOpeningEvent => {
                println!("{} handle TCPOpeningEvent: {:?}", self.plugin_name, session);
                let (src_port, dst_port) = packet.unwrap().get_innermost_port().unwrap();
                if src_port == 80 || dst_port == 80 {
                    println!("{} add HTTPRequestEvent", self.plugin_name);
                    queue.add(Event::HTTPRequestEvent, Some(session));
                }
            }
            Event::TCPActiveEvent => {
                println!("{} handle TCPActiveEvent: {:?}", self.plugin_name, session);
            }
            Event::TCPExpireEvent => {
                println!("{} handle TCPExpireEvent: {:?}", self.plugin_name, session);
            }
            Event::TCPClosedEvent => {
                println!("{} handle TCPClosedEvent: {:?}", self.plugin_name, session);
            }
            Event::HTTPRequestEvent => {
                println!(
                    "{} handle HTTPRequestEvent: {:?}",
                    self.plugin_name, session
                );
            }
            _ => {
                println!("{} handle UnknownEvent: {:?}", self.plugin_name, session);
            }
        }
    }
}