V1

alfred/app.backup.weather_outfits/services/audio_settings.py

@@ -0,0 +1,77 @@
+"""Réglages audio Alfred : ALSA carte 1 et états logiques thread-safe."""
+import os
+import re
+import subprocess
+import threading
+
+_LOCK = threading.RLock()
+_STATE = {'volume': 70, 'speaker_muted': False, 'mic_muted': False, 'mic_gain': None}
+_CARD = os.getenv('ALFRED_ALSA_CARD', '1')
+_CONTROL = os.getenv('ALFRED_ALSA_VOLUME_CONTROL', 'Master')
+
+def _amixer(*args):
+    return subprocess.run(['amixer', '-c', _CARD, *args], capture_output=True,
+                          text=True, timeout=5, check=True).stdout
+
+def initialize():
+    """Lit le volume existant sans modifier les réglages audio au démarrage."""
+    try:
+        output = _amixer('sget', _CONTROL)
+        matches = re.findall(r'\[(\d+)%\]', output)
+        with _LOCK:
+            if matches:
+                _STATE['volume'] = int(matches[0])
+            # ALFRED_MIC_GAIN_V2 : gain Capture, sans toucher à Mic Boost.
+            try:
+                gain_out = _amixer('sget', os.getenv('ALFRED_ALSA_CAPTURE_CONTROL', 'Capture'))
+                gains = re.findall(r'\[(\d+)%\]', gain_out)
+                _STATE['mic_gain'] = int(gains[0]) if gains else None
+            except (OSError, subprocess.SubprocessError) as exc:
+                print(f'[ALFRED AUDIO] Gain Capture indisponible : {exc}', flush=True)
+            # Ne pas déduire speaker_muted du mixer : état propre à Alfred.
+    except (OSError, subprocess.SubprocessError) as exc:
+        print(f'[ALFRED AUDIO] Lecture ALSA impossible : {exc}', flush=True)
+
+def get_settings():
+    with _LOCK:
+        return dict(_STATE)
+
+def update_settings(payload):
+    if not isinstance(payload, dict):
+        raise ValueError('Un objet JSON est attendu')
+    allowed = {'volume', 'speaker_muted', 'mic_muted', 'mic_gain'}
+    if set(payload) - allowed:
+        raise ValueError('Paramètre audio inconnu')
+    with _LOCK:
+        new = dict(_STATE)
+        if 'volume' in payload:
+            v = payload['volume']
+            if isinstance(v, bool) or not isinstance(v, (int, float)) or not 0 <= v <= 100:
+                raise ValueError('volume doit être entre 0 et 100')
+            new['volume'] = round(v)
+        if 'mic_gain' in payload:
+            v = payload['mic_gain']
+            if isinstance(v, bool) or not isinstance(v, (int, float)) or not 0 <= v <= 100:
+                raise ValueError('mic_gain doit être entre 0 et 100')
+            new['mic_gain'] = round(v)
+        for key in ('speaker_muted', 'mic_muted'):
+            if key in payload:
+                if not isinstance(payload[key], bool):
+                    raise ValueError(f'{key} doit être un booléen')
+                new[key] = payload[key]
+        # Le gain Capture ne change que sur demande explicite.
+        # Mic Boost et Internal Mic Boost restent inchangés.
+        if 'mic_gain' in payload and new['mic_gain'] != _STATE['mic_gain']:
+            _amixer('sset', os.getenv('ALFRED_ALSA_CAPTURE_CONTROL', 'Capture'), f"{new['mic_gain']}%")
+        if new['volume'] != _STATE['volume']:
+            _amixer('sset', _CONTROL, f"{new['volume']}%")
+        _STATE.update(new)
+        return dict(_STATE)
+
+def speaker_muted():
+    with _LOCK:
+        return _STATE['speaker_muted']
+
+def mic_muted():
+    with _LOCK:
+        return _STATE['mic_muted']