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// This file is part of elem <https://github.com/Fuwn/elem>.
//
// 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;
use serde_derive::{Deserialize, Serialize};
use tungstenite::{client::IntoClientRequest, Message};
#[derive(Serialize, Deserialize, Debug)]
pub struct DeviceInfo {
pub id: String,
#[serde(rename = "connectionType")]
connection_type: String,
#[serde(rename = "deviceType")]
device_type: String,
#[serde(rename = "displayName")]
pub display_name: String,
}
impl DeviceInfo {
pub fn new(
id: &str,
connection_type: &str,
device_type: &str,
display_name: &str,
) -> Self {
Self {
id: id.to_string(),
connection_type: connection_type.to_string(),
device_type: device_type.to_string(),
display_name: display_name.to_string(),
}
}
pub fn from_device_info(device_info: &Self) -> Self {
Self {
id: device_info.id.clone(),
connection_type: device_info.connection_type.clone(),
device_type: device_info.device_type.clone(),
display_name: device_info.display_name.clone(),
}
}
}
#[derive(Serialize, Deserialize, Debug)]
struct DeviceListPayload {
#[serde(rename = "deviceInfos")]
device_infos: Vec<DeviceInfo>,
}
#[derive(Serialize, Deserialize, Debug)]
struct DeviceList {
payload: DeviceListPayload,
}
#[derive(Serialize, Deserialize, Debug)]
pub struct DevicePayload {
percentage: u64,
}
impl DevicePayload {
pub const fn percentage(&self) -> u64 { self.percentage }
}
#[derive(Serialize, Deserialize, Debug)]
pub struct Device {
payload: DevicePayload,
}
impl Device {
pub const fn payload(&self) -> &DevicePayload { &self.payload }
}
/// Create a connection to the Logitech G HUB `WebSocket` (backtick-ed because
/// rustfmt is forcing me to)
fn connection() -> tungstenite::WebSocket<
tungstenite::stream::MaybeTlsStream<std::net::TcpStream>,
> {
let url = url::Url::parse("ws://localhost:9010").unwrap();
let (mut ws_stream, _) = tungstenite::connect({
let mut request = url.into_client_request().unwrap();
// https://github.com/snapview/tungstenite-rs/issues/279
// https://github.com/snapview/tungstenite-rs/issues/145#issuecomment-713581499
request
.headers_mut()
.insert("Sec-WebSocket-Protocol", "json".parse().unwrap());
request
})
.unwrap();
ws_stream.read_message().unwrap();
ws_stream
}
/// Get a list of only wireless devices from the Logitech G HUB `WebSocket`
pub fn wireless_devices() -> HashMap<String, DeviceInfo> {
let mut stream = connection();
stream
.write_message(Message::binary(
serde_json::json!({
"path": "/devices/list",
"verb": "GET"
})
.to_string(),
))
.unwrap();
let devices = serde_json::from_value::<DeviceList>(
serde_json::from_str(&stream.read_message().unwrap().into_text().unwrap())
.unwrap(),
)
.unwrap();
let wireless = devices
.payload
.device_infos
.iter()
.filter(|device_info| device_info.connection_type == "WIRELESS")
.map(DeviceInfo::from_device_info)
.collect::<Vec<DeviceInfo>>();
let mut mapped = HashMap::new();
for device in wireless {
mapped.insert(device.display_name.clone(), device);
}
// Adding a dummy device to the device list for testing purposes.
//
// I'm also going to keep this in because it's a nice way for the user to make
// sure everything is working properly.
mapped.insert(
"Dummy (Debug)".to_string(),
DeviceInfo::new("dummy_debug", "WIRELESS", "MOUSE", "Dummy (Debug)"),
);
mapped
}
/// Get the battery percentage of a specific wireless device
pub fn device(display_name: &str) -> Device {
if display_name == "Dummy (Debug)" {
return Device {
payload: DevicePayload { percentage: 100 },
};
}
let mut stream = connection();
stream
.write_message(Message::binary(
serde_json::json!({
"path": format!("/battery/{}/state", wireless_devices().get(display_name).unwrap().id),
"verb": "GET"
})
.to_string(),
))
.unwrap();
serde_json::from_value::<Device>(
serde_json::from_str(&stream.read_message().unwrap().into_text().unwrap())
.unwrap(),
)
.unwrap()
}
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