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// This file is part of Locus <https://github.com/gemrest/locus>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
use std::{collections::HashMap, lazy::SyncLazy, sync::Mutex};
use tokio::time::Instant;
#[cfg(debug_assertions)]
pub const CACHE_RATE: u64 = 1;
#[cfg(not(debug_assertions))]
pub const CACHE_RATE: u64 = 60 * 5;
pub static ROUTES: SyncLazy<Mutex<HashMap<String, Route>>> =
SyncLazy::new(|| Mutex::new(HashMap::new()));
#[derive(Debug)]
pub struct Route {
pub description: String,
pub text_cache: String,
}
impl Route {
pub fn new(description: &str) -> Self {
Self {
description: description.to_string(),
text_cache: "".to_string(),
}
}
}
pub fn hits_from(route: &str) -> i32 {
if let Ok(database) = crate::DATABASE.lock() {
(*database)
.get::<i32>(if route.is_empty() { "/" } else { route })
.unwrap()
} else {
0
}
}
pub fn track_mount(
router: &mut windmark::Router,
route: &str,
description: &str,
handler: windmark::handler::RouteResponse,
) {
(*ROUTES.lock().unwrap()).insert(route.to_string(), Route::new(description));
router.mount(route, handler);
}
pub fn cache(context: &windmark::returnable::RouteContext<'_>, response: &str) {
static LAST_CACHED: SyncLazy<Mutex<Instant>> =
SyncLazy::new(|| Mutex::new(Instant::now()));
if (*LAST_CACHED.lock().unwrap()).elapsed()
>= std::time::Duration::from_secs(CACHE_RATE)
|| (*ROUTES.lock().unwrap())
.get(context.url.path())
.is_some_and(|&r| r.text_cache.is_empty())
{
(*LAST_CACHED.lock().unwrap()) = Instant::now();
if let Some(route) = (*ROUTES.lock().unwrap()).get_mut(context.url.path()) {
route.text_cache = response.to_string();
info!("cache set for {}", context.url.path());
} else {
warn!(
"cache could not be set for {} as it is not being tracked",
context.url.path()
);
}
trace!("recache for {}", context.url.path());
}
}
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