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use std::collections::BTreeMap;
use std::time::Duration;
use actix::clock::delay_for;
use actix::dev::*;
use derive_builder::Builder;
use log::info;
use crate::mcaptcha::MCaptcha;
#[derive(Clone)]
pub struct Master {
sites: BTreeMap<String, (Option<()>, Addr<MCaptcha>)>,
gc: u64,
}
impl Master {
pub fn add_site(&mut self, details: AddSite) {
self.sites
.insert(details.id, (None, details.addr.to_owned()));
}
pub fn new(gc: u64) -> Self {
Master {
sites: BTreeMap::new(),
gc,
}
}
pub fn get_site<'a, 'b>(&'a mut self, id: &'b str) -> Option<Addr<MCaptcha>> {
let mut r = None;
if let Some((read_val, addr)) = self.sites.get_mut(id) {
r = Some(addr.clone());
*read_val = Some(());
};
r
}
pub fn rm_site(&mut self, id: &str) {
self.sites.remove(id);
}
}
impl Actor for Master {
type Context = Context<Self>;
fn started(&mut self, ctx: &mut Self::Context) {
let addr = ctx.address();
let task = async move {
addr.send(CleanUp).await.unwrap();
}
.into_actor(self);
ctx.spawn(task);
}
}
#[derive(Message)]
#[rtype(result = "Option<Addr<MCaptcha>>")]
pub struct GetSite(pub String);
impl Handler<GetSite> for Master {
type Result = MessageResult<GetSite>;
fn handle(&mut self, m: GetSite, _ctx: &mut Self::Context) -> Self::Result {
let addr = self.get_site(&m.0);
if addr.is_none() {
return MessageResult(None);
} else {
return MessageResult(Some(addr.unwrap().clone()));
}
}
}
#[derive(Message)]
#[rtype(result = "()")]
pub struct CleanUp;
impl Handler<CleanUp> for Master {
type Result = ();
fn handle(&mut self, _: CleanUp, ctx: &mut Self::Context) -> Self::Result {
let sites = self.sites.clone();
let gc = self.gc;
let master = ctx.address();
info!("init master actor cleanup up");
let task = async move {
for (id, (new, addr)) in sites.iter() {
use crate::mcaptcha::{GetCurrentVisitorCount, Stop};
let visitor_count = addr.send(GetCurrentVisitorCount).await.unwrap();
println!("{}", visitor_count);
if visitor_count == 0 && new.is_some() {
addr.send(Stop).await.unwrap();
master.send(RemoveSite(id.to_owned())).await.unwrap();
println!("cleaned up");
}
}
let duration = Duration::new(gc, 0);
delay_for(duration).await;
master.send(CleanUp).await.unwrap();
}
.into_actor(self);
ctx.spawn(task);
}
}
#[derive(Message)]
#[rtype(result = "()")]
pub struct RemoveSite(pub String);
impl Handler<RemoveSite> for Master {
type Result = ();
fn handle(&mut self, m: RemoveSite, _ctx: &mut Self::Context) -> Self::Result {
self.rm_site(&m.0);
}
}
#[derive(Message, Builder)]
#[rtype(result = "()")]
pub struct AddSite {
pub id: String,
pub addr: Addr<MCaptcha>,
}
impl Handler<AddSite> for Master {
type Result = ();
fn handle(&mut self, m: AddSite, _ctx: &mut Self::Context) -> Self::Result {
self.add_site(m);
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::mcaptcha::tests::*;
#[actix_rt::test]
async fn master_actor_works() {
let addr = Master::new(1).start();
let id = "yo";
let mcaptcha = get_counter().start();
let msg = AddSiteBuilder::default()
.id(id.into())
.addr(mcaptcha.clone())
.build()
.unwrap();
addr.send(msg).await.unwrap();
let mcaptcha_addr = addr.send(GetSite(id.into())).await.unwrap();
assert_eq!(mcaptcha_addr, Some(mcaptcha));
let addr_doesnt_exist = addr.send(GetSite("a".into())).await.unwrap();
assert!(addr_doesnt_exist.is_none());
let timer_expire = Duration::new(DURATION, 0);
delay_for(timer_expire).await;
delay_for(timer_expire).await;
let mcaptcha_addr = addr.send(GetSite(id.into())).await.unwrap();
assert_eq!(mcaptcha_addr, None);
}
}