"""
Debug script to test Gemini service with API keys from environment.
Keys should be in GEMINI_KEYS environment variable, comma-separated.

Usage:
    GEMINI_KEYS="key1,key2,key3" python tests/debug_gemini_service.py
"""
import os
import sys
import asyncio
import logging
import base64
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

# Add parent directory to path
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))

from services.gemini_service import GeminiService, MODELS

# Configure logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

# Test image path
TEST_IMAGE_PATH = os.path.join(os.path.dirname(os.path.dirname(__file__)), "test.jpg")


def load_test_image():
    """Load test image and return base64 + mime type."""
    if not os.path.exists(TEST_IMAGE_PATH):
        logger.error(f"Test image not found: {TEST_IMAGE_PATH}")
        return None, None
    
    with open(TEST_IMAGE_PATH, "rb") as f:
        image_data = f.read()
    
    base64_image = base64.b64encode(image_data).decode("utf-8")
    mime_type = "image/jpeg"
    
    logger.info(f"Loaded test image: {TEST_IMAGE_PATH} ({len(image_data)} bytes)")
    return base64_image, mime_type


async def test_generate_text(service: GeminiService, key_index: int):
    """Test simple text generation."""
    logger.info(f"[Key {key_index}] Testing text generation...")
    try:
        result = await service.generate_text("Say hello in one word.")
        logger.info(f"[Key {key_index}] Text generation result: {result[:100]}...")
        return True
    except Exception as e:
        logger.error(f"[Key {key_index}] Text generation failed: {e}")
        return False


async def test_analyze_image(service: GeminiService, key_index: int, base64_image: str, mime_type: str):
    """Test image analysis."""
    logger.info(f"[Key {key_index}] Testing image analysis...")
    try:
        result = await service.analyze_image(
            base64_image=base64_image,
            mime_type=mime_type,
            prompt="Describe this image in one sentence."
        )
        logger.info(f"[Key {key_index}] Image analysis result: {result[:100]}...")
        return True
    except Exception as e:
        logger.error(f"[Key {key_index}] Image analysis failed: {e}")
        return False


async def test_generate_animation_prompt(service: GeminiService, key_index: int, base64_image: str, mime_type: str):
    """Test animation prompt generation."""
    logger.info(f"[Key {key_index}] Testing animation prompt generation...")
    try:
        result = await service.generate_animation_prompt(
            base64_image=base64_image,
            mime_type=mime_type
        )
        logger.info(f"[Key {key_index}] Animation prompt result: {result[:100]}...")
        return True
    except Exception as e:
        logger.error(f"[Key {key_index}] Animation prompt generation failed: {e}")
        return False


async def test_key(api_key: str, key_index: int, base64_image: str, mime_type: str):
    """Test all basic operations with a single API key."""
    logger.info(f"\n{'='*50}")
    logger.info(f"Testing Key {key_index}: {api_key[:10]}...{api_key[-4:]}")
    logger.info(f"{'='*50}")
    
    try:
        service = GeminiService(api_key)
    except Exception as e:
        logger.error(f"[Key {key_index}] Failed to initialize service: {e}")
        return {"key_index": key_index, "valid": False, "error": str(e)}
    
    results = {
        "key_index": key_index,
        "key_preview": f"{api_key[:10]}...{api_key[-4:]}",
        "text_generation": await test_generate_text(service, key_index),
        "image_analysis": await test_analyze_image(service, key_index, base64_image, mime_type),
        "animation_prompt": await test_generate_animation_prompt(service, key_index, base64_image, mime_type),
    }
    
    results["valid"] = all([
        results["text_generation"],
        results["image_analysis"],
        results["animation_prompt"]
    ])
    
    return results


async def main():
    # Load test image
    base64_image, mime_type = load_test_image()
    if not base64_image:
        logger.error("Cannot run tests without test image. Please add test.jpg to project root.")
        return
    
    gemini_keys_str = os.getenv("GEMINI_KEYS", "")
    
    if not gemini_keys_str:
        logger.error("GEMINI_KEYS environment variable not set.")
        logger.info("Usage: GEMINI_KEYS='key1,key2,key3' python tests/debug_gemini_service.py")
        return
    
    keys = [k.strip() for k in gemini_keys_str.split(",") if k.strip()]
    
    if not keys:
        logger.error("No valid keys found in GEMINI_KEYS.")
        return
    
    logger.info(f"Found {len(keys)} API key(s) to test.")
    logger.info(f"Available models: {MODELS}")
    
    all_results = []
    for i, key in enumerate(keys):
        result = await test_key(key, i + 1, base64_image, mime_type)
        all_results.append(result)
    
    # Summary
    logger.info(f"\n{'='*50}")
    logger.info("SUMMARY")
    logger.info(f"{'='*50}")
    
    valid_count = sum(1 for r in all_results if r.get("valid", False))
    logger.info(f"Valid keys: {valid_count}/{len(keys)}")
    
    for result in all_results:
        status = "✓ VALID" if result.get("valid") else "✗ INVALID"
        logger.info(f"  Key {result['key_index']}: {status}")
        if not result.get("valid"):
            for test_name in ["text_generation", "image_analysis", "animation_prompt"]:
                if test_name in result and not result[test_name]:
                    logger.info(f"    - {test_name}: FAILED")


if __name__ == "__main__":
    asyncio.run(main())