"""
VocalGuard Backend Test Script
Run this to verify backend setup is working correctly.
"""
import sys
import os

print("=" * 60)
print("VocalGuard Backend Test")
print("=" * 60)

# Test 1: Python Version
print("\n✓ Testing Python version...")
if sys.version_info >= (3, 8):
    print(f"  ✅ Python {sys.version.split()[0]} (OK)")
else:
    print(f"  ❌ Python {sys.version.split()[0]} (Need 3.8+)")
    sys.exit(1)

# Test 2: Import Core Libraries
print("\n✓ Testing core libraries...")
try:
    import fastapi
    print(f"  ✅ FastAPI {fastapi.__version__}")
except ImportError:
    print("  ❌ FastAPI not found. Run: pip install -r requirements.txt")
    sys.exit(1)

try:
    import firebase_admin
    print(f"  ✅ Firebase Admin SDK installed")
except ImportError:
    print("  ❌ Firebase Admin not found. Run: pip install -r requirements.txt")
    sys.exit(1)

try:
    import librosa
    print(f"  ✅ Librosa {librosa.__version__}")
except ImportError:
    print("  ❌ Librosa not found. Run: pip install -r requirements.txt")
    sys.exit(1)

try:
    import numpy
    print(f"  ✅ NumPy {numpy.__version__}")
except ImportError:
    print("  ❌ NumPy not found. Run: pip install -r requirements.txt")
    sys.exit(1)

# Test 3: Check Environment Variables
print("\n✓ Checking environment configuration...")
env_file = ".env"
if os.path.exists(env_file):
    print(f"  ✅ .env file found")
    with open(env_file) as f:
        content = f.read()
        if "GOOGLE_APPLICATION_CREDENTIALS" in content:
            print(f"  ✅ GOOGLE_APPLICATION_CREDENTIALS configured")
        else:
            print(f"  ⚠️  GOOGLE_APPLICATION_CREDENTIALS not set in .env")
else:
    print(f"  ⚠️  .env file not found (optional)")

# Test 4: Check Processor Module
print("\n✓ Testing processor module...")
try:
    import processor
    print(f"  ✅ Processor module loaded")
    print(f"  📊 Chunk size: {processor.CHUNK_SECONDS}s")
    print(f"  🎤 Sample rate: {processor.TARGET_SR}Hz")
except Exception as e:
    print(f"  ❌ Processor import failed: {e}")
    sys.exit(1)

# Test 5: Check Main API Module
print("\n✓ Testing main API module...")
try:
    import main
    print(f"  ✅ Main API module loaded")
    print(f"  🌐 FastAPI app created")
except Exception as e:
    print(f"  ❌ Main module import failed: {e}")
    sys.exit(1)

# Test 6: Optional - Check AI Models
print("\n✓ Checking AI models (optional)...")
try:
    import torch
    print(f"  ✅ PyTorch {torch.__version__}")
    if torch.cuda.is_available():
        print(f"  🚀 CUDA available (GPU acceleration)")
    else:
        print(f"  💻 CPU mode (slower processing)")
except ImportError:
    print("  ⚠️  PyTorch not installed (will use heuristics)")

try:
    from transformers import WhisperProcessor
    print(f"  ✅ Transformers library available")
except ImportError:
    print("  ⚠️  Transformers not installed (transcription disabled)")

try:
    from sentence_transformers import SentenceTransformer
    print(f"  ✅ Sentence Transformers available")
except ImportError:
    print("  ⚠️  Sentence Transformers not installed")

# Summary
print("\n" + "=" * 60)
print("✅ Backend test completed successfully!")
print("=" * 60)
print("\n📝 Next steps:")
print("  1. Configure Firebase credentials in .env")
print("  2. Update frontend/app.js with Firebase config")
print("  3. Run: python main.py")
print("  4. Open: http://localhost:8000 (should see {\"status\":\"ok\"})")
print("\n🚀 To start backend: python main.py")
print("=" * 60)