# This file is part of SSHare.
#
# SSHare is free software: you can redistribute it and/or modify it under the terms of
# the GNU General Public License as published by the Free Software Foundation,
# either version 3 of the License, or (at your option) any later version.
#
# SSHare is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# SSHare. If not, see <https://www.gnu.org/licenses/>.

import os
from pathlib import Path

from sshare.plugins.config import Argument
from sshare.plugins.config import Flag
from sshare.plugins.config import NoDefault
from sshare.plugins.source import File

plugin_type = "source"

activate = [ "directory" ]
config = {
    "directory": NoDefault
}
args = {
    "directory": Argument(
        short="l",
        long="latest",
        nargs="?",
        const=Flag,
        help="Upload the latest file from a directory",
    )
}

def init():
    directory = Path(config.directory)
    if not directory.is_dir():
        logger.fatal(f"Error: 'plugins.latest.directory => {config.directory}' is not a directory")
    config.directory = directory

def source():
    key           = os.path.getmtime
    files         = config.directory.iterdir()
    selection     = next(files)
    selection_key = key(selection)
    for file in files:
        file = file.as_posix()
        new_key = key(file)
        if new_key > selection_key:
            selection     = file
            selection_key = new_key
    logger.info(f"Uploading file '{selection}'")
    return File(selection)