import requests
import os

def download_file(url, save_path):
    print(f"Downloading {url}...")
    try:
        response = requests.get(url, stream=True, timeout=30)
        response.raise_for_status()
        with open(save_path, 'wb') as f:
            for chunk in response.iter_content(chunk_size=8192):
                f.write(chunk)
        print(f"Successfully downloaded to {save_path} (Size: {os.path.getsize(save_path)} bytes)")
    except Exception as e:
        print(f"Failed to download: {e}")

if __name__ == "__main__":
    # Nguồn metadata chính thức từ GitHub của tác giả
    url = "https://raw.githubusercontent.com/erkil1452/gaze360/master/metadata.mat"
    save_path = "data/raw/metadata.mat"
    os.makedirs(os.path.dirname(save_path), exist_ok=True)
    download_file(url, save_path)