Update app.py

Trying a better solution for temp files

app.py

@@ -4,6 +4,12 @@ import asyncio
 import tempfile
 import os
 
+from pathlib import Path
+
+# Crea una directory per i file audio
+AUDIO_DIR = Path("audio_files")
+AUDIO_DIR.mkdir(exist_ok=True)
+
 async def get_voices():
     voices = await edge_tts.list_voices()
     return {f"{v['ShortName']} - {v['Locale']} ({v['Gender']})": v['ShortName'] for v in voices}
@@ -18,12 +24,40 @@ async def text_to_speech(text, voice, rate, pitch):
     rate_str = f"{rate:+d}%"
     pitch_str = f"{pitch:+d}Hz"
     communicate = edge_tts.Communicate(text, voice_short_name, rate=rate_str, pitch=pitch_str)
-    with tempfile.NamedTemporaryFile(delete=False, suffix=".mp3") as tmp_file:
-        tmp_path = tmp_file.name
-        await communicate.save(tmp_path)
-    return tmp_path, None
+    
+    # Crea un nome file univoco basato sul contenuto
+    import hashlib
+    content_hash = hashlib.md5(f"{text}{voice}{rate}{pitch}".encode()).hexdigest()
+    output_path = AUDIO_DIR / f"{content_hash}.mp3"
+    
+    # Genera l'audio solo se non esiste già
+    if not output_path.exists():
+        await communicate.save(str(output_path))
+    
+    return str(output_path), None
+
+# Funzione di pulizia per rimuovere i file più vecchi
+def cleanup_old_files(directory: Path, max_files: int = 100, max_age_hours: int = 24):
+    files = list(directory.glob("*.mp3"))
+    
+    # Rimuovi i file più vecchi di max_age_hours
+    current_time = datetime.datetime.now()
+    for file in files:
+        file_age = current_time - datetime.datetime.fromtimestamp(file.stat().st_mtime)
+        if file_age.total_seconds() > (max_age_hours * 3600):
+            file.unlink()
+    
+    # Se ci sono ancora troppi file, rimuovi i più vecchi
+    files = list(directory.glob("*.mp3"))
+    if len(files) > max_files:
+        files.sort(key=lambda x: x.stat().st_mtime)
+        for file in files[:-max_files]:
+            file.unlink()
 
 async def tts_interface(text, voice, rate, pitch):
+    # Esegui la pulizia prima di generare un nuovo file
+    cleanup_old_files(AUDIO_DIR)
+    
     audio, warning = await text_to_speech(text, voice, rate, pitch)
     if warning:
         return audio, gr.Warning(warning)