Create engine_lygo.py

engine_lygo.py

@@ -0,0 +1,73 @@
+#!/usr/bin/env python3
+"""
+engine_lygo.py – LYGO Resonance Engine Module
+Importable by app.py. Returns (log, audio_path, downloadable_files).
+"""
+
+import os
+from pathlib import Path
+from resonance_engine import ResonanceEngine, PRESETS
+from utils import safe_sf_write, logger
+
+def run_lygo_resonance(image_path, style, seed, duration, noise_filter, 
+                       enable_ldq, genre_manifold, percussion_mode, perceptual_polish,
+                       bpm, swing, export_stems, export_midi):
+    """
+    Run LYGO Resonance Engine with given parameters.
+    Returns (log_message, audio_path, list_of_files).
+    """
+    if not image_path or not os.path.exists(image_path):
+        return "❌ No valid image provided.", None, []
+
+    # Build config
+    config = {
+        "duration": duration,
+        "random_seed": int(seed) if seed != 0 else None,
+        "verbose": False,
+        "use_ldq": enable_ldq,
+        "genre_manifold": genre_manifold,
+        "percussion_mode": percussion_mode,
+        "perceptual_polish": perceptual_polish,
+        "tempo_bpm": bpm,
+        "swing": swing,
+        "export_stems": export_stems,
+        "export_midi": export_midi,
+    }
+    if noise_filter > 0:
+        config["noise_lowpass_hz"] = noise_filter
+
+    preset = PRESETS.get(style, {})
+    config.update(preset)
+
+    # Initialize and run
+    engine = ResonanceEngine(config)
+    out_path = f"lygo_{Path(image_path).stem}.wav"
+    
+    try:
+        engine.process(image_path, out_path)
+    except Exception as e:
+        logger.error(f"LYGO engine error: {e}", exc_info=True)
+        return f"❌ LYGO Error: {str(e)}", None, []
+
+    # Collect files
+    downloadable = [out_path]
+    if export_stems:
+        base = out_path.replace(".wav", "")
+        for suffix in ["noise", "drone", "melody", "glitch"]:
+            stem_path = f"{base}_{suffix}.wav"
+            if os.path.exists(stem_path):
+                downloadable.append(stem_path)
+    if export_midi:
+        mid_path = out_path.replace(".wav", ".mid")
+        if os.path.exists(mid_path):
+            downloadable.append(mid_path)
+
+    log_msg = (
+        f"✅ LYGO Resonance Engine complete.\n"
+        f"Output: {out_path}\n"
+        f"LDQ enabled: {enable_ldq}\n"
+        f"Genre: {genre_manifold}\n"
+        f"Percussion: {percussion_mode}\n"
+        f"BPM: {bpm}, Swing: {swing}"
+    )
+    return log_msg, out_path, downloadable