import os
import platform
from logging import getLogger

from PyQt5.QtCore import pyqtSignal, QProcess, QSettings, QStandardPaths, Qt, QByteArray
from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import QGroupBox, QMessageBox, QAction, QLabel

from rare.shared import LegendaryCoreSingleton, GlobalSignalsSingleton, ArgumentsSingleton
from rare.components.tabs.games.game_utils import GameUtils
from rare.utils import utils
from rare.utils.utils import create_desktop_link

logger = getLogger("Game")


class BaseInstalledWidget(QGroupBox):
    launch_signal = pyqtSignal(str, QProcess, list)
    show_info = pyqtSignal(str)
    finish_signal = pyqtSignal(str, int)
    proc: QProcess()

    def __init__(self, app_name, pixmap: QPixmap, game_utils: GameUtils):
        super(BaseInstalledWidget, self).__init__()
        self.core = LegendaryCoreSingleton()
        self.signals = GlobalSignalsSingleton()
        self.args = ArgumentsSingleton()
        self.game_utils = game_utils

        self.syncing_cloud_saves = False

        self.texts = {
            "needs_verification": self.tr("Please verify game before playing"),
            "hover": {
                "update_available": self.tr("Start game without version check"),
                "launch": self.tr("Launch Game"),
                "launch_origin": self.tr("Launch/Link"),
                "running": self.tr("Game running"),
                "launch_offline": self.tr("Launch offline")
            },
            "default": {
                "running": self.tr("Game running"),
                "syncing": self.tr("Syncing cloud saves"),
                "update_available": self.tr("Update available"),
                "no_meta": self.tr("Game is only offline available")
            },
        }

        self.game = self.core.get_game(app_name)
        self.igame = self.core.get_installed_game(app_name)  # None if origin

        if self.game.app_title == "Unreal Engine":
            self.game.app_title = f"{self.game.app_title} {self.game.app_name.split('_')[-1]}"

        self.is_only_offline = False

        try:
            self.core.get_asset(app_name, platform=self.igame.platform).build_version
        except ValueError:
            logger.warning(f"Game {self.game.app_title} has no metadata. Set offline true")
            self.is_only_offline = True

        self.image = QLabel()
        self.image.setPixmap(
            pixmap.scaled(200, int(200 * 4 / 3), transformMode=Qt.SmoothTransformation)
        )
        self.game_running = False
        self.offline = self.args.offline
        self.update_available = False
        if self.igame and self.core.lgd.assets:
            try:
                remote_version = self.core.get_asset(
                    self.game.app_name, platform=self.igame.platform, update=False
                ).build_version
            except ValueError:
                logger.error(f"Asset error for {self.game.app_title}")
                self.update_available = False
            else:
                if remote_version != self.igame.version:
                    self.update_available = True

        self.data = QByteArray()
        self.setContentsMargins(0, 0, 0, 0)
        self.settings = QSettings()

        self.setContextMenuPolicy(Qt.ActionsContextMenu)
        launch = QAction(self.tr("Launch"), self)
        launch.triggered.connect(self.launch)
        self.addAction(launch)

        if self.game.supports_cloud_saves:
            sync = QAction(self.tr("Sync with cloud"), self)
            sync.triggered.connect(self.sync_game)
            self.addAction(sync)

        desktop = QStandardPaths.writableLocation(QStandardPaths.DesktopLocation)
        if os.path.exists(
                os.path.join(desktop, f"{self.game.app_title}.desktop")
        ) or os.path.exists(os.path.join(desktop, f"{self.game.app_title}.lnk")):
            self.create_desktop = QAction(self.tr("Remove Desktop link"))
        else:
            self.create_desktop = QAction(self.tr("Create Desktop link"))
        if self.igame:
            self.create_desktop.triggered.connect(
                lambda: self.create_desktop_link("desktop")
            )
            self.addAction(self.create_desktop)

        applications = QStandardPaths.writableLocation(QStandardPaths.ApplicationsLocation)
        if platform.system() == "Linux":
            start_menu_file = os.path.join(applications, f"{self.game.app_title}.desktop")
        elif platform.system() == "Windows":
            start_menu_file = os.path.join(applications, "..", f"{self.game.app_title}.lnk")
        else:
            start_menu_file = ""
        if platform.system() in ["Windows", "Linux"]:
            if os.path.exists(start_menu_file):
                self.create_start_menu = QAction(self.tr("Remove start menu link"))
            else:
                self.create_start_menu = QAction(self.tr("Create start menu link"))
            if self.igame:
                self.create_start_menu.triggered.connect(
                    lambda: self.create_desktop_link("start_menu")
                )
                self.addAction(self.create_start_menu)

        reload_image = QAction(self.tr("Reload Image"), self)
        reload_image.triggered.connect(self.reload_image)
        self.addAction(reload_image)

        if self.igame is not None:
            uninstall = QAction(self.tr("Uninstall"), self)
            self.addAction(uninstall)
            uninstall.triggered.connect(
                lambda: self.signals.update_gamelist.emit([self.game.app_name])
                if self.game_utils.uninstall_game(self.game.app_name)
                else None
            )

    def reload_image(self):
        utils.download_image(self.game, True)
        pm = utils.get_pixmap(self.game.app_name)
        self.image.setPixmap(
            pm.scaled(200, int(200 * 4 / 3), transformMode=Qt.SmoothTransformation)
        )

    def create_desktop_link(self, type_of_link):
        if type_of_link == "desktop":
            shortcut_path = QStandardPaths.writableLocation(QStandardPaths.DesktopLocation)
        elif type_of_link == "start_menu":
            shortcut_path = QStandardPaths.writableLocation(QStandardPaths.ApplicationsLocation)
        else:
            return

        if platform.system() == "Windows":
            shortcut_path = os.path.join(shortcut_path, f"{self.game.app_title}.lnk")
        elif platform.system() == "Linux":
            shortcut_path = os.path.join(shortcut_path, f"{self.game.app_title}.desktop")
        else:
            QMessageBox.warning(
                self,
                "Warning",
                f"Create a Desktop link is currently not supported on {platform.system()}",
            )
            return

        if not os.path.exists(shortcut_path):
            try:
                if not create_desktop_link(self.game.app_name, self.core, type_of_link):
                    return
            except PermissionError:
                QMessageBox.warning(
                    self, "Error", "Permission error. Cannot create Desktop Link"
                )
            if type_of_link == "desktop":
                self.create_desktop.setText(self.tr("Remove Desktop link"))
            elif type_of_link == "start_menu":
                self.create_start_menu.setText(self.tr("Remove Start menu link"))
        else:
            if os.path.exists(shortcut_path):
                os.remove(shortcut_path)

            if type_of_link == "desktop":
                self.create_desktop.setText(self.tr("Create Desktop link"))
            elif type_of_link == "start_menu":
                self.create_start_menu.setText(self.tr("Create Start menu link"))

    def launch(self, offline=False, skip_version_check=False):
        if self.game_running:
            return
        offline = offline or self.is_only_offline
        if self.is_only_offline and not self.igame.can_run_offline:
            QMessageBox.warning(self, "Warning",
                                self.tr("This game is probably not in your library and it cannot be launched offline"))
            return

        if self.game.supports_cloud_saves and not offline:
            self.syncing_cloud_saves = True
        self.game_utils.prepare_launch(
            self.game.app_name, offline, skip_version_check
        )

    def sync_finished(self, app_name):
        self.syncing_cloud_saves = False

    def sync_game(self):
        try:
            sync = self.game_utils.cloud_save_utils.sync_before_launch_game(
                self.game.app_name, True
            )
        except Exception:
            sync = False
        if sync:
            self.syncing_cloud_saves = True

    def game_finished(self, app_name, error):
        if error:
            QMessageBox.warning(self, "Error", error)
        self.game_running = False