added applet and updated README

daemon_client.py

@@ -0,0 +1,118 @@
+"""Socket client for acer-rgbd daemon communication."""
+
+import socket
+from dataclasses import dataclass
+from typing import Optional
+
+SOCKET_PATH = "/run/acer-rgbd.sock"
+
+EFFECTS = [
+    ("static", "Static"),
+    ("breathing", "Breathing"),
+    ("neon", "Neon"),
+    ("wave", "Wave"),
+    ("ripple", "Ripple"),
+    ("zoom", "Zoom"),
+    ("snake", "Snake"),
+    ("disco", "Disco"),
+    ("shifting", "Shifting"),
+]
+
+DEVICES = ["keyboard", "lid", "button"]
+
+
+@dataclass
+class RGBState:
+    device: str = "keyboard"
+    hidraw: str = "/dev/hidraw4"
+    effect: str = "static"
+    brightness: int = 100
+    speed: int = 0
+    direction: str = "none"
+    r: int = 255
+    g: int = 255
+    b: int = 255
+    zone: str = "all"
+
+    def to_command(self) -> str:
+        return (
+            f"SET dev={self.device} hidraw={self.hidraw} "
+            f"effect={self.effect} bright={self.brightness} "
+            f"speed={self.speed} dir={self.direction} "
+            f"r={self.r} g={self.g} b={self.b} zone={self.zone}"
+        )
+
+    @classmethod
+    def from_line(cls, line: str) -> "RGBState":
+        state = cls()
+        for pair in line.split():
+            if "=" not in pair:
+                continue
+            key, val = pair.split("=", 1)
+            if key == "dev":
+                state.device = val
+            elif key == "hidraw":
+                state.hidraw = val
+            elif key == "effect":
+                state.effect = val
+            elif key == "bright":
+                state.brightness = int(val)
+            elif key == "speed":
+                state.speed = int(val)
+            elif key == "dir":
+                state.direction = val
+            elif key == "r":
+                state.r = int(val)
+            elif key == "g":
+                state.g = int(val)
+            elif key == "b":
+                state.b = int(val)
+            elif key == "zone":
+                state.zone = val
+        return state
+
+
+def send_command(cmd: str) -> str:
+    """Send command to daemon and return response."""
+    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+    sock.connect(SOCKET_PATH)
+    sock.sendall(cmd.encode() + b"\n")
+    response = sock.recv(8192).decode()
+    sock.close()
+    return response
+
+
+def is_daemon_running() -> bool:
+    """Check if daemon is available."""
+    try:
+        send_command("GET")
+        return True
+    except (FileNotFoundError, ConnectionRefusedError):
+        return False
+
+
+def get_states() -> dict[str, RGBState]:
+    """Get current state for all devices."""
+    response = send_command("GET")
+    states = {}
+    for line in response.strip().split("\n"):
+        if line.startswith("SET"):
+            state = RGBState.from_line(line)
+            states[state.device] = state
+    return states
+
+
+def set_rgb(state: RGBState) -> tuple[bool, str]:
+    """Send RGB command to daemon. Returns (success, message)."""
+    try:
+        response = send_command(state.to_command())
+        if response.strip().startswith("OK"):
+            return True, "OK"
+        else:
+            return False, response.strip()
+    except FileNotFoundError:
+        return False, "Daemon not running (socket not found)"
+    except ConnectionRefusedError:
+        return False, "Cannot connect to daemon"
+    except Exception as e:
+        return False, str(e)