#!/usr/bin/python3
from network.communication import Server
from utils.database.database import Database
from utils.config.config import ServerConfig
from utils.models.models import VMImage
from utils.tools.tools import md5
import logging
import argparse


config = ServerConfig()
logger = logging.getLogger(__name__)
log_level_mapping_dict = {
    "NOTSET": 0,
    "DEBUG": 10,
    "INFO": 20,
    "WARNING": 30,
    "ERROR": 40,
    "CRITICAL": 50,
}
logger.setLevel(log_level_mapping_dict[config.server_loglevel])
logger = logging.getLogger()
logger.setLevel


def run_server():
    server = Server(
        host=config.server_host,
        port=config.server_port,
        name=config.server_name,
        access_password=config.server_password,
        access_username=config.server_access_username,
        jwt_secret=config.jwt_secret,
        version="v0.0.1alpha",
        database_file_path=config.database_file,
        logging_level=config.server_loglevel,
    )
    logger.info(
        f"Running server on host: {config.server_host}, port: {config.server_port}, server name: {config.server_name}"
    )

    server.run()


def add_image(image_name: str, image_file: str, image_version: str):
    try:
        new_image_hash = md5(image_file)
        new_image_object = VMImage(
            image_name=image_name,
            image_file=image_file,
            image_version=image_version,
            image_hash=new_image_hash,
            image_name_version_combo=f"{image_name}@{image_version}",
        )
        db = Database(config.database_file, config.server_loglevel)
        db.add_image(new_image_object)
    except Exception as ex:
        logger.error(f"Error adding image to the database: {str(ex)}")
        exit(-1)

def remove_image(image_name: str, image_version: str):
    try:
        db = Database(config.database_file, config.server_loglevel)
        obj_to_remove = db.get_image_by_name_version_string(f"{image_name}@{image_version}")
        db.delete_image(obj_to_remove)
    except Exception as ex:
        logger.error(f"Error removing image from the database: {str(ex)}")
        exit(-1)

def assign_image(image_name: str, image_version: str, client_mac_address: str):
    try:
        db = Database(config.database_file, config.server_loglevel)
        db.assign_image_to_client(client_mac_address=client_mac_address, image_name_version_combo=f"{image_name}@{image_version}")
    except Exception as ex:
        logger.error(f"Error assigning image to a client: {str(ex)}")
        exit(-1)

def detach_image(image_name: str, image_version: str, client_mac_address: str):
    try:
        db = Database(config.database_file, config.server_loglevel)
        db.detach_image_from_client(client_mac_address=client_mac_address, image_name_version_combo=f"{image_name}@{image_version}")
    except Exception as ex:
        logger.error(f"Error detaching image from the client {client_mac_address}; error was {str(ex)}")


parser = argparse.ArgumentParser(
    prog="fleetcontrol",
    description="Server and configuration utility for orchestrating VM machine clients",
)

function_mapper = {
    "run": run_server,
    "add_image": add_image,
    "remove_image": remove_image,
    "assign_image": assign_image,
    "detach_image": detach_image
}

parser.add_argument("command", choices=function_mapper)

parser.add_argument("--image-name", action="store")
parser.add_argument("--image-filepath", action="store")
parser.add_argument("--image-version", action="store")
parser.add_argument("--mac-address", action="store")

args = parser.parse_args()

fun = function_mapper[args.command]

if "add_image" == args.command:
    fun(
        image_name=args.image_name,
        image_file=args.image_filepath,
        image_version=args.image_version,
    )
elif "remove_image" == args.command:
    fun(
        image_name=args.image_name,
        image_version=args.image_version
    )
elif "assign_image" == args.command:
    fun(
        image_name=args.image_name,
        image_version=args.image_version,
        client_mac_address=args.mac_address,
    )
elif "detach_image" == args.command:
    fun(
        image_name=args.image_name,
        image_version=args.image_version,
        client_mac_address=args.mac_address,
    )
elif "run" == args.command:
    fun()
else:
    logger.error(f"Invalid operand: {args.command}")
    exit(-1)

# vi: ft=python