# Copyright (C) 2015, 2023 Tom Tromey <tom@tromey.com>

# This program 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.
#
# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

# Storage management.

from gi.repository import GLib
import os
import errno
import configparser
import atexit


class StorageManager:
    def __init__(self):
        self.dir = os.path.join(GLib.get_user_config_dir(), "gdb")
        self.file = os.path.join(self.dir, "settings")
        try:
            os.mkdir(self.dir, 0o700)
        except OSError as exc:
            if exc.errno is not errno.EEXIST:
                self.file = None
        self.config = configparser.RawConfigParser()
        if self.file is not None:
            self.config.read(self.file)
        if not self.config.has_section("general"):
            self.config.add_section("general")
        atexit.register(self.write)

    def get(self, name):
        if self.config.has_option("general", name):
            return self.config.get("general", name)
        return None

    def getboolean(self, name):
        if self.config.has_option("general", name):
            return self.config.getboolean("general", name)
        return None

    def getint(self, name):
        if self.config.has_option("general", name):
            return self.config.getint("general", name)
        return None

    def set(self, name, value):
        self.config.set("general", name, value)

    def write(self):
        with open(self.file, "wt") as save_file:
            self.config.write(save_file)


storage_manager = StorageManager()