RareGameBase: Add default_platform property

This property reports the default platform to use for a game based
on legendary's configuration and if they platform is available in the
game's assets.

Using that property we can make better choices on what platform to operate
on without user intervention. Currently we use it to infer the platform
in when installing, importing, and calculating game versions.

rare/components/dialogs/install_dialog.py

@@ -78,9 +78,7 @@ class InstallDialog(QDialog):
         elif rgame.is_installed:
             base_path = rgame.install_path
         else:
-            base_path = self.core.get_default_install_dir(
-                self.core.default_platform if self.core.default_platform in rgame.platforms else "Windows"
-            )
+            base_path = self.core.get_default_install_dir(rgame.default_platform)
 
         self.install_dir_edit = PathEdit(
             path=base_path,
@@ -103,13 +101,7 @@ class InstallDialog(QDialog):
         self.error_box()
 
         self.ui.platform_combo.addItems(reversed(rgame.platforms))
-        combo_text = (
-            rgame.igame.platform
-            if rgame.is_installed
-            else self.core.default_platform
-            if self.core.default_platform in rgame.platforms
-            else "Windows"
-        )
+        combo_text = rgame.igame.platform if rgame.is_installed else rgame.default_platform
         self.ui.platform_combo.setCurrentIndex(self.ui.platform_combo.findText(combo_text))
         self.ui.platform_combo.currentIndexChanged.connect(lambda i: self.option_changed(None))
         self.ui.platform_combo.currentIndexChanged.connect(self.check_incompatible_platform)

rare/components/tabs/games/game_info/game_info.py

@@ -286,7 +286,7 @@ class GameInfo(QWidget, SideTabContents):
         self.ui.platform.setText(
             self.rgame.igame.platform
             if self.rgame.is_installed and not self.rgame.is_non_asset
-            else self.core.default_platform
+            else self.rgame.default_platform
         )
 
         self.ui.lbl_grade.setDisabled(

rare/components/tabs/games/integrations/import_group.py

@@ -253,10 +253,10 @@ class ImportGroup(QGroupBox):
 
     def set_game(self, app_name: str):
         if app_name:
-            game = self.rcore.get_game(app_name)
-            folder = game.folder_name
-            platform = self.core.default_platform if self.core.default_platform in game.platforms else "Windows"
-            self.path_edit.setText(os.path.join(self.core.get_default_install_dir(platform), folder))
+            rgame = self.rcore.get_game(app_name)
+            self.path_edit.setText(
+                os.path.join(self.core.get_default_install_dir(rgame.default_platform), rgame.folder_name)
+            )
             self.app_name_edit.setText(app_name)
 
     def path_edit_callback(self, path) -> Tuple[bool, str, int]:

rare/models/base_game.py

@@ -121,6 +121,10 @@ class RareGameBase(QObject):
         """
         return tuple(self.game.asset_infos.keys())
 
+    @property
+    def default_platform(self) -> str:
+        return self.core.default_platform if self.core.default_platform in self.platforms else "Windows"
+
     @property
     def is_mac(self) -> bool:
         """!
@@ -169,7 +173,7 @@ class RareGameBase(QObject):
 
         @return str The current version of the game
         """
-        return self.igame.version if self.igame is not None else self.game.app_version(self.core.default_platform)
+        return self.igame.version if self.igame is not None else self.game.app_version(self.default_platform)
 
     @property
     def install_path(self) -> Optional[str]:

rare/models/game.py

@@ -167,7 +167,7 @@ class RareGame(RareGameSlim):
     def update_game(self):
         self.game = self.core.get_game(
             self.app_name, update_meta=False,
-            platform=self.igame.platform if self.igame else self.core.default_platform
+            platform=self.igame.platform if self.igame else self.default_platform
         )
 
     def update_igame(self):
@@ -229,7 +229,7 @@ class RareGame(RareGameSlim):
         if self.igame is not None:
             return self.game.app_version(self.igame.platform)
         else:
-            return self.game.app_version(self.core.default_platform)
+            return self.game.app_version(self.default_platform)
 
     @property
     def has_update(self) -> bool: