Centralize configuration into config.yaml

- All settings moved to config.yaml
- configs/load.py reads from config.yaml with env var overrides
- Environment variables still work for backward compatibility
- Added pyyaml to requirements

configs/default.py

@@ -1,32 +0,0 @@
-from __future__ import annotations
-
-import os
-from pathlib import Path
-
-# ── Server ──────────────────────────────────────────────────────────────────
-WS_HOST = os.getenv("POSEFIT_WS_HOST", "0.0.0.0")
-WS_PORT = int(os.getenv("POSEFIT_WS_PORT", "8765"))
-WS_MAX_SIZE = int(os.getenv("POSEFIT_WS_MAX_SIZE", str(10 * 1024 * 1024)))
-
-# ── Video processing ────────────────────────────────────────────────────────
-PROCESS_EVERY_N_FRAMES = max(1, int(os.getenv("POSEFIT_PROCESS_EVERY_N_FRAMES", "1")))
-
-# ── Model ───────────────────────────────────────────────────────────────────
-MODEL_DIR: Path = Path(__file__).resolve().parent.parent / "pose_models"
-MODEL_PATH = os.getenv("POSEFIT_MODEL_PATH", str(MODEL_DIR / "pose_landmarker_full.task"))
-PREFER_GPU = os.getenv("POSEFIT_PREFER_GPU", "1") not in ("0", "false", "False")
-
-# ── Dead bug exercise ───────────────────────────────────────────────────────
-VISIBILITY_THRESHOLD = float(os.getenv("POSEFIT_VISIBILITY_THRESHOLD", "0.45"))
-EXTENSION_CONFIRM_FRAMES = int(os.getenv("POSEFIT_EXTENSION_CONFIRM_FRAMES", "4"))
-RESET_CONFIRM_FRAMES = int(os.getenv("POSEFIT_RESET_CONFIRM_FRAMES", "3"))
-
-# ── Audio ───────────────────────────────────────────────────────────────────
-REP_ANNOUNCER_ENABLED = os.getenv("POSEFIT_REP_ANNOUNCER_ENABLED", "1") not in ("0", "false", "False")
-REP_ANNOUNCER_RATE = int(os.getenv("POSEFIT_REP_ANNOUNCER_RATE", "185"))
-REP_ANNOUNCER_VOLUME = float(os.getenv("POSEFIT_REP_ANNOUNCER_VOLUME", "1.0"))
-
-# ── Logging ─────────────────────────────────────────────────────────────────
-LOG_DIR: Path = Path(__file__).resolve().parent.parent / "logs"
-LOG_ROTATION = os.getenv("POSEFIT_LOG_ROTATION", "20 MB")
-LOG_RETENTION = os.getenv("POSEFIT_LOG_RETENTION", "14 days")

configs/load.py

@@ -0,0 +1,83 @@
+from __future__ import annotations
+
+import os
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+_PROJECT_ROOT = Path(__file__).resolve().parent.parent
+
+_ENV_MAP = {
+    "POSEFIT_WS_HOST": ("server", "host"),
+    "POSEFIT_WS_PORT": ("server", "port", int),
+    "POSEFIT_WS_MAX_SIZE": ("server", "max_ws_size", int),
+    "POSEFIT_PROCESS_EVERY_N_FRAMES": ("video", "process_every_n_frames", int),
+    "POSEFIT_MODEL_PATH": ("model", "path"),
+    "POSEFIT_PREFER_GPU": ("model", "prefer_gpu", lambda v: v not in ("0", "false", "False")),
+    "POSEFIT_VISIBILITY_THRESHOLD": ("dead_bug", "visibility_threshold", float),
+    "POSEFIT_EXTENSION_CONFIRM_FRAMES": ("dead_bug", "extension_confirm_frames", int),
+    "POSEFIT_RESET_CONFIRM_FRAMES": ("dead_bug", "reset_confirm_frames", int),
+    "POSEFIT_REP_ANNOUNCER_ENABLED": ("audio", "rep_announcer_enabled", lambda v: v not in ("0", "false", "False")),
+    "POSEFIT_REP_ANNOUNCER_RATE": ("audio", "rep_announcer_rate", int),
+    "POSEFIT_REP_ANNOUNCER_VOLUME": ("audio", "rep_announcer_volume", float),
+    "POSEFIT_LOG_ROTATION": ("logging", "rotation"),
+    "POSEFIT_LOG_RETENTION": ("logging", "retention"),
+    "POSEFIT_LOG_DIR": ("logging", "dir"),
+}
+
+
+def _load_yaml() -> dict[str, Any]:
+    config_path = _PROJECT_ROOT / "config.yaml"
+    if config_path.exists():
+        with open(config_path, encoding="utf-8") as f:
+            return yaml.safe_load(f) or {}
+    return {}
+
+
+def _apply_env_overrides(config: dict) -> None:
+    for env_var, (section, key, *rest) in _ENV_MAP.items():
+        value = os.getenv(env_var)
+        if value is None:
+            continue
+        if rest:
+            value = rest[0](value)
+        config.setdefault(section, {})[key] = value
+
+
+_cfg = _load_yaml()
+_apply_env_overrides(_cfg)
+
+
+def _get(section: str, key: str, default: Any = None) -> Any:
+    return _cfg.get(section, {}).get(key, default)
+
+
+# ── Server ──────────────────────────────────────────────────────────────────
+WS_HOST = _get("server", "host", "0.0.0.0")
+WS_PORT = _get("server", "port", 8765)
+WS_MAX_SIZE = _get("server", "max_ws_size", 10485760)
+
+# ── Video processing ────────────────────────────────────────────────────────
+PROCESS_EVERY_N_FRAMES = max(1, _get("video", "process_every_n_frames", 1))
+
+# ── Model ───────────────────────────────────────────────────────────────────
+MODEL_DIR: Path = _PROJECT_ROOT / "pose_models"
+_model_path = _get("model", "path", "")
+MODEL_PATH = _model_path if _model_path else str(MODEL_DIR / "pose_landmarker_full.task")
+PREFER_GPU = bool(_get("model", "prefer_gpu", True))
+
+# ── Dead bug exercise ───────────────────────────────────────────────────────
+VISIBILITY_THRESHOLD = float(_get("dead_bug", "visibility_threshold", 0.45))
+EXTENSION_CONFIRM_FRAMES = int(_get("dead_bug", "extension_confirm_frames", 4))
+RESET_CONFIRM_FRAMES = int(_get("dead_bug", "reset_confirm_frames", 3))
+
+# ── Audio ───────────────────────────────────────────────────────────────────
+REP_ANNOUNCER_ENABLED = bool(_get("audio", "rep_announcer_enabled", True))
+REP_ANNOUNCER_RATE = int(_get("audio", "rep_announcer_rate", 185))
+REP_ANNOUNCER_VOLUME = float(_get("audio", "rep_announcer_volume", 1.0))
+
+# ── Logging ─────────────────────────────────────────────────────────────────
+LOG_DIR: Path = _PROJECT_ROOT / _get("logging", "dir", "logs")
+LOG_ROTATION = _get("logging", "rotation", "20 MB")
+LOG_RETENTION = _get("logging", "retention", "14 days")