import os
import sys
from dotenv import load_dotenv

# Load variables from .env file
load_dotenv()

# Import the describe_change function
from describe import describe_change

def main():
    # Allow specifying filenames as command line arguments or use defaults
    img1 = sys.argv[1] if len(sys.argv) > 1 else "../uploads/img1.jpg"
    img2 = sys.argv[2] if len(sys.argv) > 2 else "../uploads/img2.jpg"

    print(f"Testing describe_change with:")
    print(f"  Before image: {img1}")
    print(f"  After image:  {img2}")

    # Check if files exist
    if not os.path.exists(img1):
        print(f"Error: Before image '{img1}' does not exist.")
        print("Please place test images or pass paths: python test_describe.py path/to/before.jpg path/to/after.jpg")
        return
    if not os.path.exists(img2):
        print(f"Error: After image '{img2}' does not exist.")
        print("Please place test images or pass paths: python test_describe.py path/to/before.jpg path/to/after.jpg")
        return

    # Check for API key or local setup
    groq_api_key = os.environ.get("GROQ_API_KEY")
    if groq_api_key:
        print(f"Using Groq API for generation (Key starts with: {groq_api_key[:10]}...)")
    else:
        print("Using local Ollama fallback (GROQ_API_KEY not set).")

    # Sample metrics detector hint
    metrics = {
        "added": 1,
        "removed": 0
    }
    
    print("\nGenerating description...")
    try:
        desc = describe_change(img1, img2, metrics)
        print("\n--- Result ---")
        if desc:
            print(desc)
        else:
            print("Failed to generate description (returned None).")
        print("--------------")
    except Exception as e:
        print(f"Error running description: {e}")

if __name__ == "__main__":
    main()