test.py

# backend/utils/terrain_analyzer/road_detection_model/test.py

import json
import os
import sys
import time
from datetime import datetime


# Add the current directory to Python path to import local modules
sys.path.append(os.path.dirname(os.path.abspath(__file__)))

from dotenv import load_dotenv

load_dotenv()
HF_TOKEN = os.environ.get("HUGGING_FACE_INFERENCE_TOKEN")


def test_gradio_client():
    """Test the model via Gradio client (if deployed)."""
    print("\n🌐 Testing via Gradio Client")
    print("=" * 50)

    try:
        from gradio_client import Client

        space_url = "https://dunedain-ai-road-detection-model.hf.space"

        print(f"🔗 Connecting to: {space_url}")
        client = Client(space_url, hf_token=HF_TOKEN)

        # Test with example file
        example_path = (
            "utils/terrain_analyzer/road_detection_model/examples/example.png"
        )

        if not os.path.exists(example_path):
            print(f"❌ Example file not found: {example_path}")
            return None

        print("📤 Uploading image and running prediction...")
        start_time = time.time()

        # Use the predict function (adjust based on your Gradio interface)

        # Load the image and convert to base64-encoded string
        import base64

        with open(example_path, "rb") as f:
            img_bytes = f.read()
            image_b64 = base64.b64encode(img_bytes).decode("utf-8")

        payload = json.dumps({"image_b64": image_b64})

        result = client.predict(
            payload,
            api_name="/predict",  # API endpoint
        )

        end_time = time.time()
        inference_time = end_time - start_time

        print(f"⏱️  Remote inference time: {inference_time:.3f} seconds")

        # INSERT_YOUR_CODE
        # The result is a JSON string with a key "mask_base64" containing the b64-encoded PNG mask.

        result_json = json.loads(result)
        print(result_json.keys())
        mask_b64 = result_json.get("mask_base64")
        # INSERT_YOUR_CODE
        from datetime import datetime

        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
        if mask_b64:
            output_dir = "utils/terrain_analyzer/road_detection_model/test_results"
            os.makedirs(output_dir, exist_ok=True)
            mask_path = os.path.join(output_dir, f"remote_pred_mask_{timestamp}.png")
            with open(mask_path, "wb") as f:
                f.write(base64.b64decode(mask_b64))
            print(f"🖼️  Remote predicted mask saved: {mask_path}")
        else:
            print("❌ No mask_base64 found in result.")

        # Save remote test results
        save_remote_test_results(result, inference_time, space_url)

        return result

    except ImportError:
        print("❌ gradio_client not installed. Install with: pip install gradio-client")
        return None
    except Exception as e:
        print(f"❌ Remote test failed: {e}")
        return None


def save_remote_test_results(result, inference_time, space_url):
    """Save remote test results."""
    output_dir = "utils/terrain_analyzer/road_detection_model/test_results"
    os.makedirs(output_dir, exist_ok=True)

    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")

    # Save remote test results
    remote_stats = {
        "timestamp": timestamp,
        "test_type": "remote_gradio",
        "space_url": space_url,
        "inference_time_seconds": round(inference_time, 3),
        "result": str(result),
    }

    remote_path = os.path.join(output_dir, f"remote_test_{timestamp}.json")
    with open(remote_path, "w") as f:
        json.dump(remote_stats, f, indent=2)
    print(f"🌐 Remote test results saved: {remote_path}")


def main():
    """Run comprehensive tests."""
    print("🚀 Road Detection Model Test Suite")
    print("=" * 60)

    # Test Remote Gradio client
    print("\n" + "=" * 60)
    remote_result = test_gradio_client()

    # Summary
    print("\n" + "=" * 60)
    print("🎯 Test Summary")
    print("=" * 60)

    if remote_result:
        print("✅ Remote test: PASSED")
    else:
        print("❌ Remote test: FAILED")

    print("🏁 Test suite completed!")


if __name__ == "__main__":
    main()