setup project with daemon, socket, cmd, air, notifying, state

internal/bus/bus.go

@@ -0,0 +1,57 @@
+package bus
+
+import (
+	"bufio"
+	"net"
+	"os"
+	"path/filepath"
+)
+
+const SockName = "control.sock"
+const ProtoVer = "0.1"
+
+// ~/.cache/hyprvoice/control.sock
+func SockPath() (string, error) {
+	dir, err := os.UserCacheDir()
+	if err != nil {
+		return "", err
+	}
+	hd := filepath.Join(dir, "hyprvoice")
+	return filepath.Join(hd, SockName), nil
+}
+
+func Listen() (net.Listener, error) {
+	sp, err := SockPath()
+	if err != nil {
+		return nil, err
+	}
+	if err := os.MkdirAll(filepath.Dir(sp), 0o700); err != nil {
+		return nil, err
+	}
+	_ = os.Remove(sp) // stale socket from last run
+	return net.Listen("unix", sp)
+}
+
+func Dial() (net.Conn, error) {
+	sp, err := SockPath()
+	if err != nil {
+		return nil, err
+	}
+	return net.Dial("unix", sp)
+}
+
+func SendCommand(cmd byte) (string, error) {
+	c, err := Dial()
+	if err != nil {
+		return "", err
+	}
+	defer c.Close()
+
+	_, err = c.Write([]byte{cmd, '\n'})
+	if err != nil {
+		return "", err
+	}
+
+	resp, err := bufio.NewReader(c).ReadString('\n')
+	return resp, err
+}