1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
/*
* This file is part of sdbclient
* Copyright (C) 2022 Jonni Liljamo <jonni@liljamo.com>
*
* Licensed under GPL-3.0-only.
* See LICENSE for licensing information.
*/
use bevy::{
prelude::*,
tasks::{AsyncComputeTaskPool, Task},
};
use futures_lite::future;
use crate::{api, cfg::CfgHidden};
/// This plugin will check if we can connect to the API
pub struct ConnectionCheckPlugin;
impl Plugin for ConnectionCheckPlugin {
fn build(&self, app: &mut App) {
app
// Start the check at the start
.add_startup_system(start_connection_check)
.add_system(handle_connection_check);
}
}
#[derive(Component)]
struct ConnectionCheck(Task<api::APIInfo>);
fn start_connection_check(mut commands: Commands, cfg_hidden: Res<CfgHidden>) {
let api_address = cfg_hidden.api_server.clone();
let thread_pool = AsyncComputeTaskPool::get();
let task = thread_pool.spawn(async move {
let api_info = api::info(api_address);
api_info
});
commands.spawn(ConnectionCheck(task));
}
fn handle_connection_check(
mut commands: Commands,
mut connection_check_tasks: Query<(Entity, &mut ConnectionCheck)>,
) {
for (entity, mut task) in &mut connection_check_tasks {
if let Some(api_info) = future::block_on(future::poll_once(&mut task.0)) {
info!("API connection check passed");
info!("API version: {}", api_info.ver);
// Remove the task, since it's done now
commands.entity(entity).remove::<ConnectionCheck>();
commands.entity(entity).despawn_recursive();
}
}
}