Initial commit: Javis project

javis-slave/src/javis_slave/config.py

@@ -0,0 +1,90 @@
+"""Slave-local configuration: master address, credentials, audio devices.
+
+Persisted to ``%LOCALAPPDATA%/JavisSlave/slave_config.json`` (or
+``~/.javis-slave/slave_config.json`` on non-Windows).  Set
+``JAVIS_SLAVE_CONFIG_DIR`` to override (useful for systemd services).
+"""
+from __future__ import annotations
+
+import json
+import os
+import uuid
+from dataclasses import asdict, dataclass, field
+from pathlib import Path
+from typing import Optional
+
+
+def config_dir() -> Path:
+    override = os.environ.get("JAVIS_SLAVE_CONFIG_DIR")
+    if override:
+        return Path(override).expanduser()
+    base = os.environ.get("LOCALAPPDATA")
+    if base:
+        return Path(base) / "JavisSlave"
+    return Path.home() / ".javis-slave"
+
+
+def config_path() -> Path:
+    return config_dir() / "slave_config.json"
+
+
+@dataclass
+class WakeWordSettings:
+    """Wake-word block received from the master."""
+    model: str = "hey_jarvis"
+    threshold: float = 0.5
+    vad_threshold: float = 0.5
+    silence_ms: int = 800
+
+
+@dataclass
+class SlaveConfig:
+    device_id: str = field(default_factory=lambda: str(uuid.uuid4()))
+    device_name: str = ""
+    master_host: str = ""
+    master_port: int = 8765
+    api_key: str = ""
+    room: Optional[str] = None            # cached; refreshed from master
+    input_device: Optional[int] = None
+    output_device: Optional[int] = None
+    input_gain: float = 1.0
+    sample_rate: int = 16000
+    wake_word: WakeWordSettings = field(default_factory=WakeWordSettings)
+    # Local MCP control server bind (review A-6: was hardcoded to 127.0.0.1,
+    # unreachable by remote controllers). 0.0.0.0 lets other devices reach it.
+    api_host: str = "0.0.0.0"
+    api_port: int = 8766
+
+    @property
+    def paired(self) -> bool:
+        return bool(self.master_host and self.api_key)
+
+    @property
+    def base_url(self) -> str:
+        return f"http://{self.master_host}:{self.master_port}"
+
+
+def load_config() -> SlaveConfig:
+    path = config_path()
+    cfg = SlaveConfig()
+    if path.exists():
+        try:
+            raw = json.loads(path.read_text(encoding="utf-8"))
+            ww_raw = raw.pop("wake_word", {}) or {}
+            for key, val in raw.items():
+                if hasattr(cfg, key) and key != "wake_word":
+                    setattr(cfg, key, val)
+            for key, val in ww_raw.items():
+                if hasattr(cfg.wake_word, key):
+                    setattr(cfg.wake_word, key, val)
+        except Exception:  # noqa: BLE001
+            pass
+    return cfg
+
+
+def save_config(cfg: SlaveConfig) -> None:
+    path = config_path()
+    path.parent.mkdir(parents=True, exist_ok=True)
+    tmp = path.with_suffix(".tmp")
+    tmp.write_text(json.dumps(asdict(cfg), indent=2), encoding="utf-8")
+    tmp.replace(path)