104 lines
3.5 KiB
Rust
104 lines
3.5 KiB
Rust
use std::io::ErrorKind;
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use std::time::Duration;
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use std::collections::HashMap;
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use std::sync::Mutex;
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use tauri::Manager;
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use once_cell::sync::Lazy;
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use crate::animation;
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#[derive(Default)]
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pub struct PortMap(Mutex<HashMap<String, Box<dyn serialport::SerialPort>>>);
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static PORT_MAP: Mutex<Lazy<HashMap<String, Box<dyn serialport::SerialPort>>>> = Mutex::new(Lazy::new(|| HashMap::new()));
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static PORT_NAME: Mutex<Lazy<String>> = Mutex::new(Lazy::new(|| String::from("/dev/ttyUSB0")));
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#[derive(Clone, serde::Serialize)]
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pub struct PayloadPortState {
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open: bool,
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}
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#[tauri::command]
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pub fn write_serial(input: &str) -> Result<(), String> {
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let port_name = PORT_NAME.lock().unwrap().to_string();
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match PORT_MAP.lock().unwrap().get(&port_name) {
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Some(port) => {
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let mut clone = port.try_clone().expect("Failed to clone");
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match clone.write(input.as_bytes()) {
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Ok(_) => {
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Ok(())
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},
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Err(err) => Err(err.to_string()),
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}
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}
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None => {
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Err(String::from("Port is closed"))
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}
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}
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}
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#[tauri::command]
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pub fn get_serial_ports() -> Vec<String> {
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let ports = serialport::available_ports().expect("No ports found");
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let mut vec: Vec<String> = Vec::new();
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for p in ports {
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vec.push(p.port_name);
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}
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vec
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}
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#[tauri::command]
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pub fn close_port(app_handle: tauri::AppHandle) {
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let port_name = PORT_NAME.lock().unwrap().to_string();
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match PORT_MAP.lock().unwrap().remove(&port_name) {
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Some(_) => {
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println!("Port {:?} closed", port_name);
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app_handle.emit_all("port-state", PayloadPortState { open: false }).unwrap();
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},
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None => println!("Port {:?} was already closed", port_name),
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}
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}
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#[tauri::command]
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pub async fn open_port(app_handle: tauri::AppHandle, baud: u32) -> Result<(), String> {
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let port_name = PORT_NAME.lock().unwrap().to_string();
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match serialport::new(&port_name, baud).timeout(Duration::from_millis(10)).open() {
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Ok(port) => {
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// port_map.0.lock().unwrap().insert(port_name.to_string(), port.try_clone().expect("Error cloning"));
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PORT_MAP.lock().unwrap().insert(port_name.clone(), port.try_clone().expect("Error cloning port"));
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let mut clone = port.try_clone().expect("Failed to clone");
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let mut buffer: Vec<u8> = vec![0; 1024];
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println!("Port {:?} is open", port_name);
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app_handle.emit_all("port-state", PayloadPortState { open: true }).unwrap();
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loop {
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match clone.read(buffer.as_mut_slice()) {
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Ok(bytes_read) => {
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if bytes_read > 0 {
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let data = &buffer[..bytes_read];
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let data = String::from_utf8_lossy(data).to_string();
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if !data.trim().is_empty() {
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println!("{}", data.trim());
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if data.trim() == "1" {
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animation::start();
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app_handle.emit_all("button-on", PayloadPortState { open: true }).unwrap();
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}
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}
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}
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},
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Err(ref e) if e.kind() == ErrorKind::TimedOut => (),
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Err(e) => return Err(e.to_string()),
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};
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}
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},
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Err(err) => return Err(err.to_string()),
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}
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}
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