"""MIT License

Copyright (c) 2023 - present Vocard Development

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
"""

import requests, zipfile, os, shutil, argparse
from io import BytesIO

ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
__version__ = "v2.7.0"

GITHUB_API_URL = "https://api.github.com/repos/ChocoMeow/Vocard/releases/latest"
VOCARD_URL = "https://github.com/ChocoMeow/Vocard/archive/"
IGNORE_FILES = ["settings.json", "logs", "last-session.json"]

class bcolors:
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    OKGREEN = '\033[92m'
    ENDC = '\033[0m'

def check_version(with_msg=False):
    """Check for the latest version of the project.

    Args:
        with_msg (bool): option to print the message.

    Returns:
        str: the latest version.
    """
    response = requests.get(GITHUB_API_URL)
    latest_version = response.json().get("name", __version__)
    if with_msg:
        msg = f"{bcolors.OKGREEN}Your bot is up-to-date! - {latest_version}{bcolors.ENDC}" if latest_version == __version__ else \
              f"{bcolors.WARNING}Your bot is not up-to-date! The latest version is {latest_version} and you are currently running version {__version__}\n. Run `python update.py -l` to update your bot!{bcolors.ENDC}"
        print(msg)
    return latest_version

def download_file(version=None):
    """Download the latest version of the project.

    Args:
        version (str): the version to download. If None, download the latest version.

    Returns:
        BytesIO: the downloaded zip file.
    """
    version = version if version else check_version()
    print(f"Downloading Vocard version: {version}")
    response = requests.get(VOCARD_URL + version + ".zip")
    if response.status_code == 404:
        print(f"{bcolors.FAIL}Warning: Version not found!{bcolors.ENDC}")
        exit()
    print("Download Completed")
    return response

def install(response, version):
    """Install the downloaded version of the project.

    Args:
        response (BytesIO): the downloaded zip file.
        version (str): the version to install.
    """
    user_input = input(f"{bcolors.WARNING}--------------------------------------------------------------------------\n"
                           "Note: Before proceeding, please ensure that there are no personal files or\n" \
                           "sensitive information in the directory you're about to delete. This action\n" \
                           "is irreversible, so it's important to double-check that you're making the \n" \
                           f"right decision. {bcolors.ENDC} Continue with caution? (Y/n) ")
        
    if user_input.lower() in ["y", "yes"]:
        print("Installing ...")
        zfile = zipfile.ZipFile(BytesIO(response.content))
        zfile.extractall(ROOT_DIR)

        version = version.replace("v", "")
        source_dir = os.path.join(ROOT_DIR, f"Vocard-{version}")
        if os.path.exists(source_dir):
            for filename in os.listdir(ROOT_DIR):
                if filename in IGNORE_FILES + [f"Vocard-{version}"]:
                    continue

                filename = os.path.join(ROOT_DIR, filename)
                if os.path.isdir(filename):
                    shutil.rmtree(filename)
                else:
                    os.remove(filename)
            for filename in os.listdir(source_dir):
                shutil.move(os.path.join(source_dir, filename), os.path.join(ROOT_DIR, filename))
            os.rmdir(source_dir)
        print(f"{bcolors.OKGREEN}Version {version} installed Successfully! Run `python main.py` to start your bot{bcolors.ENDC}")
    else:
        print("Update canceled!")

def parse_args():
    """Parse command line arguments."""
    parser = argparse.ArgumentParser(description='Update script for Vocard.')
    parser.add_argument('-c', '--check', action='store_true', help='Check the current version of the Vocard')
    parser.add_argument('-v', '--version', type=str, help='Install the specified version of the Vocard')
    parser.add_argument('-l', '--latest', action='store_true', help='Install the latest version of the Vocard from Github')
    parser.add_argument('-b', '--beta', action='store_true', help='Install the beta version of the Vocard from Github')
    return parser.parse_args()

def main():
    """Main function."""
    args = parse_args()

    if args.check:
        check_version(with_msg=True)
        
    elif args.version:
        version = args.version
        response = download_file(version)
        install(response, version)
        
    elif args.latest:
        response = download_file()
        version = check_version()
        install(response, version)
        
    elif args.beta:
        response = download_file("refs/heads/beta")
        install(response, "beta")
        pass

    else:
        print(f"{bcolors.FAIL}No arguments provided. Run `python update.py -h` for help.{bcolors.ENDC}")

if __name__ == "__main__":
    main()