# heroic_importer.py
#
# Copyright 2022-2023 kramo
#
# 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

import json
import os
from hashlib import sha256
from pathlib import Path
from time import time

from . import shared
from cartridges.utils.check_install import check_install


def heroic_installed(path=None):
    location_key = "heroic-location"
    heroic_dir = (
        path if path else Path(shared.schema.get_string(location_key)).expanduser()
    )
    check = "config.json"

    if not (heroic_dir / check).is_file():
        locations = (
            (Path(),)
            if path
            else (
                Path.home() / ".var/app/com.heroicgameslauncher.hgl/config/heroic",
                shared.config_dir / "heroic",
            )
        )

        if os.name == "nt" and not path:
            locations += (Path(os.getenv("appdata")) / "heroic",)

        heroic_dir = check_install(check, locations, (shared.schema, location_key))

    return heroic_dir


def heroic_importer():
    heroic_dir = heroic_installed()
    if not heroic_dir:
        return

    current_time = int(time())
    importer = shared.importer

    # Import Epic games
    if not shared.schema.get_boolean("heroic-import-epic"):
        pass
    elif (heroic_dir / "store_cache" / "legendary_library.json").exists():
        library = json.load(
            (heroic_dir / "store_cache" / "legendary_library.json").open()
        )

        try:
            for game in library["library"]:
                if not game["is_installed"]:
                    continue

                importer.total_queue += 1
                importer.queue += 1

                values = {}

                app_name = game["app_name"]
                values["game_id"] = f"heroic_epic_{app_name}"

                if (
                    values["game_id"] in shared.win.games
                    and not shared.win.games[values["game_id"]].removed
                ):
                    importer.save_game()
                    continue

                values["name"] = game["title"]
                values["developer"] = game["developer"]
                values["executable"] = (
                    ["start", f"heroic://launch/{app_name}"]
                    if os.name == "nt"
                    else ["xdg-open", f"heroic://launch/{app_name}"]
                )
                values["hidden"] = False
                values["source"] = "heroic_epic"
                values["added"] = current_time

                image_path = (
                    heroic_dir
                    / "images-cache"
                    / sha256(
                        (f'{game["art_square"]}?h=400&resize=1&w=300').encode()
                    ).hexdigest()
                )

                importer.save_game(values, image_path if image_path.exists() else None)

        except KeyError:
            pass

    # Import GOG games
    if not shared.schema.get_boolean("heroic-import-gog"):
        pass
    elif (heroic_dir / "gog_store" / "installed.json").exists() and (
        heroic_dir / "store_cache" / "gog_library.json"
    ).exists():
        installed = json.load((heroic_dir / "gog_store" / "installed.json").open())

        importer.total_queue += len(installed["installed"])
        importer.queue += len(installed["installed"])

        for item in installed["installed"]:
            values = {}
            app_name = item["appName"]

            values["game_id"] = f"heroic_gog_{app_name}"

            if (
                values["game_id"] in shared.win.games
                and not shared.win.games[values["game_id"]].removed
            ):
                importer.save_game()
                continue

            # Get game title and developer from gog_library.json as they are not present in installed.json
            library = json.load(
                (heroic_dir / "store_cache" / "gog_library.json").open()
            )
            for game in library["games"]:
                if game["app_name"] == app_name:
                    values["developer"] = game["developer"]
                    values["name"] = game["title"]
                    image_path = (
                        heroic_dir
                        / "images-cache"
                        / sha256(game["art_square"].encode()).hexdigest()
                    )

            values["executable"] = (
                ["start", f"heroic://launch/{app_name}"]
                if os.name == "nt"
                else ["xdg-open", f"heroic://launch/{app_name}"]
            )
            values["hidden"] = False
            values["source"] = "heroic_gog"
            values["added"] = current_time

            importer.save_game(values, image_path if image_path.exists() else None)

    # Import sideloaded games
    if not shared.schema.get_boolean("heroic-import-sideload"):
        pass
    elif (heroic_dir / "sideload_apps" / "library.json").exists():
        library = json.load((heroic_dir / "sideload_apps" / "library.json").open())

        importer.total_queue += len(library["games"])
        importer.queue += len(library["games"])

        for item in library["games"]:
            values = {}
            app_name = item["app_name"]

            values["game_id"] = f"heroic_sideload_{app_name}"

            if (
                values["game_id"] in shared.win.games
                and not shared.win.games[values["game_id"]].removed
            ):
                importer.save_game()
                continue

            values["name"] = item["title"]
            values["executable"] = (
                ["start", f"heroic://launch/{app_name}"]
                if os.name == "nt"
                else ["xdg-open", f"heroic://launch/{app_name}"]
            )
            values["hidden"] = False
            values["source"] = "heroic_sideload"
            values["added"] = current_time
            image_path = (
                heroic_dir
                / "images-cache"
                / sha256(item["art_square"].encode()).hexdigest()
            )

            importer.save_game(values, image_path if image_path.exists() else None)