# itch_source.py
#
# Copyright 2022-2023 kramo
# Copyright 2023 Geoffrey Coulaud
#
# 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/>.
#
# SPDX-License-Identifier: GPL-3.0-or-later

from shutil import rmtree
from sqlite3 import connect
from time import time
from typing import NamedTuple

from src import shared
from src.game import Game
from src.importer.sources.location import Location, LocationSubPath
from src.importer.sources.source import SourceIterable, URLExecutableSource
from src.utils.sqlite import copy_db


class ItchSourceIterable(SourceIterable):
    source: "ItchSource"

    def __iter__(self):
        """Generator method producing games"""

        # Query the database
        db_request = """
        SELECT
            games.id,
            games.title,
            games.cover_url,
            games.still_cover_url,
            caves.id
        FROM
            'caves'
        INNER JOIN
            'games'
        ON
            caves.game_id = games.id
        ;
        """
        db_path = copy_db(self.source.locations.config["butler.db"])
        connection = connect(db_path)
        cursor = connection.execute(db_request)

        added_time = int(time())

        # Create games from the db results
        for row in cursor:
            values = {
                "added": added_time,
                "source": self.source.source_id,
                "name": row[1],
                "game_id": self.source.game_id_format.format(game_id=row[0]),
                "executable": self.source.executable_format.format(cave_id=row[4]),
            }
            additional_data = {"online_cover_url": row[3] or row[2]}
            game = Game(values)
            yield (game, additional_data)

        # Cleanup
        rmtree(str(db_path.parent))


class ItchLocations(NamedTuple):
    config: Location


class ItchSource(URLExecutableSource):
    source_id = "itch"
    name = _("itch")
    iterable_class = ItchSourceIterable
    url_format = "itch://caves/{cave_id}/launch"
    available_on = {"linux", "win32"}

    locations: ItchLocations

    def __init__(self) -> None:
        super().__init__()
        self.locations = ItchLocations(
            Location(
                schema_key="itch-location",
                candidates=(
                    shared.flatpak_dir / "io.itch.itch" / "config" / "itch",
                    shared.config_dir / "itch",
                    shared.home / ".config" / "itch",
                    shared.appdata_dir / "itch",
                ),
                paths={
                    "butler.db": LocationSubPath("db/butler.db"),
                },
                invalid_subtitle=Location.CONFIG_INVALID_SUBTITLE,
            )
        )