import json
import requests
import os
from concurrent.futures import ThreadPoolExecutor
from pathlib import Path
import time
from tqdm import tqdm
import logging

logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s'
)
logger = logging.getLogger(__name__)

def download_image(item):
    image_id = item['image_id']
    prompt = item['prompt']
    url = f"https://api.recraft.ai/image/{image_id}"
    
    output_dir = Path("downloaded_images")
    output_dir.mkdir(exist_ok=True)
    
    image_path = output_dir / f"{image_id}.jpg"
    prompt_path = output_dir / f"{image_id}.txt"
    
    try:
        if image_path.exists() and prompt_path.exists():
            logger.info(f"File exists, skipping: {image_id}")
            return True
            
        response = requests.get(url)
        response.raise_for_status()
        
        with open(image_path, 'wb') as f:
            f.write(response.content)
            
        with open(prompt_path, 'w', encoding='utf-8') as f:
            f.write(prompt)
        
        logger.debug(f"Successfully downloaded: {image_id}")    
        return True
    except Exception as e:
        logger.error(f"Download failed {image_id}: {str(e)}")
        return False

def main():
    print("=== Recraft Image Downloader ===")
    
    if not Path('merged.json').exists():
        logger.error("merged.json file not found!")
        return
        
    try:
        with open('merged.json', 'r', encoding='utf-8') as f:
            data = json.load(f)
    except Exception as e:
        logger.error(f"Failed to read JSON file: {str(e)}")
        return
    
    total_images = len(data['recraft_images'])
    print(f"\nFound {total_images} images")
    
    user_input = input("\nStart downloading? (y/n): ")
    if user_input.lower() != 'y':
        print("Download cancelled")
        return
    
    success_count = 0
    start_time = time.time()
    
    print("\nStarting download...")
    with ThreadPoolExecutor(max_workers=10) as executor:
        results = list(tqdm(
            executor.map(download_image, data['recraft_images']),
            total=total_images,
            desc="Download Progress",
            unit="images"
        ))
        success_count = sum(results)
    
    end_time = time.time()
    
    print("\n=== Download Complete! ===")
    print(f"Success: {success_count} images")
    print(f"Failed: {total_images - success_count} images") 
    print(f"Total time: {end_time - start_time:.2f} seconds")
    print(f"Average speed: {total_images / (end_time - start_time):.2f} images/sec")

if __name__ == "__main__":
    main()