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import paramiko
import numpy as np
import io, os
from PIL import Image
import requests
import json
from .constants import SSH_SERVER, SSH_PORT, SSH_USER, SSH_PASSWORD, SSH_LOG

def create_ssh_client(server, port, user, password):
    ssh = paramiko.SSHClient()
    ssh.load_system_host_keys()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect(server, port, user, password)
    return ssh

def get_image_from_url(image_url):
    response = requests.get(image_url)
    response.raise_for_status()  # success
    return Image.open(io.BytesIO(response.content))

def upload_image_via_sftp(ssh, image, remote_image_path):
    if isinstance(image, str):
        print("get url image")
        image = get_image_from_url(image)
    with ssh.open_sftp() as sftp:
        with io.BytesIO() as image_byte_stream:
            image.save(image_byte_stream, format='JPEG')
            image_byte_stream.seek(0)  
            sftp.putfo(image_byte_stream, remote_image_path)
        print(f"Successfully uploaded image to {remote_image_path}")
        
def upload_json_via_sftp(ssh, data, remote_json_path):
    json_data = json.dumps(data, indent=4)
    with ssh.open_sftp() as sftp:
        with io.BytesIO(json_data.encode('utf-8')) as json_byte_stream:
            sftp.putfo(json_byte_stream, remote_json_path)
        print(f"Successfully uploaded JSON data to {remote_json_path}")

def upload_image(states, output_dir):
    ssh = create_ssh_client(SSH_SERVER, SSH_PORT, SSH_USER, SSH_PASSWORD)
    for i in range(len(states)):
        output_file = os.path.join(output_dir, f"{i}.jpg")
        upload_image_via_sftp(ssh, states[i].output, output_file)

def upload_informance(data, data_path):
    ssh = create_ssh_client(SSH_SERVER, SSH_PORT, SSH_USER, SSH_PASSWORD)
    upload_json_via_sftp(ssh, data, data_path)

def create_remote_directory(remote_directory):
    ssh = create_ssh_client(SSH_SERVER, SSH_PORT, SSH_USER, SSH_PASSWORD)

    stdin, stdout, stderr = ssh.exec_command(f'mkdir -p {SSH_LOG}/{remote_directory}')
    error = stderr.read().decode('utf-8')
    if error:
        print(f"Error: {error}")
    else:
        print(f"Directory {remote_directory} created successfully.")
    # ssh.close()
    return f'{SSH_LOG}/{remote_directory}'