make first runnable version

daemon/src/socket.rs

@@ -0,0 +1,42 @@
+use std::io::{Read, Write};
+use std::os::unix::net::UnixListener;
+use std::sync::{Arc, Mutex};
+use std::thread;
+
+use crate::{protocol::Command, state::DaemonState};
+
+pub fn start_socket(state: Arc<Mutex<DaemonState>>) {
+    let _ = std::fs::remove_file("/tmp/sjnmusic.sock");
+
+    let listener = UnixListener::bind("/tmp/sjnmusic.sock").unwrap();
+
+    for stream in listener.incoming() {
+        let state = state.clone();
+
+        thread::spawn(move || {
+            let mut stream = stream.unwrap();
+
+            let mut buf = [0; 2048];
+            let size = stream.read(&mut buf).unwrap();
+
+            let msg = String::from_utf8_lossy(&buf[..size]);
+
+            if let Ok(cmd) = serde_json::from_str::<Command>(&msg) {
+                handle(cmd, state);
+            }
+
+            let _ = stream.write_all(b"OK");
+        });
+    }
+}
+
+fn handle(cmd: Command, state: Arc<Mutex<DaemonState>>) {
+    let mut state = state.lock().unwrap();
+
+    match cmd {
+        Command::Play(song) => state.play(song),
+        Command::Add(song) => state.add(song),
+        Command::Del(song) => state.delete(song),
+        Command::Init(song) => state.init(song),
+    }
+}