Factor out game creation parameters in main.

Want to move this deeper into the launch process so that it can use the
UI, but don't want to pass the loosely typed argparse namespace any
more than we have to.

qt_ui/main.py

@@ -1,8 +1,11 @@
+from __future__ import annotations
+
 import argparse
 import logging
 import ntpath
 import os
 import sys
+from dataclasses import dataclass
 from datetime import datetime
 from pathlib import Path
 from typing import Optional
@@ -261,19 +264,38 @@ def parse_args() -> argparse.Namespace:
     return parser.parse_args()
 
 
-def create_game(
-    campaign_path: Path,
-    blue: str,
-    red: str,
-    supercarrier: bool,
-    auto_procurement: bool,
-    inverted: bool,
-    cheats: bool,
-    start_date: datetime,
-    restrict_weapons_by_date: bool,
-    advanced_iads: bool,
-    use_new_squadron_rules: bool,
-) -> Game:
+@dataclass(frozen=True)
+class CreateGameParams:
+    campaign_path: Path
+    blue: str
+    red: str
+    supercarrier: bool
+    auto_procurement: bool
+    inverted: bool
+    cheats: bool
+    start_date: datetime
+    restrict_weapons_by_date: bool
+    advanced_iads: bool
+    use_new_squadron_rules: bool
+
+    @staticmethod
+    def from_args(args: argparse.Namespace) -> CreateGameParams:
+        return CreateGameParams(
+            args.campaign,
+            args.blue,
+            args.red,
+            args.supercarrier,
+            args.auto_procurement,
+            args.inverted,
+            args.cheats,
+            args.date,
+            args.restrict_weapons_by_date,
+            args.advanced_iads,
+            args.use_new_squadron_rules,
+        )
+
+
+def create_game(params: CreateGameParams) -> Game:
     first_start = liberation_install.init()
     if first_start:
         sys.exit(
@@ -289,32 +311,32 @@ def create_game(
     # for loadouts) without saving the generated campaign and reloading it the normal
     # way.
     inject_custom_payloads(Path(persistence.base_path()))
-    campaign = Campaign.from_file(campaign_path)
-    theater = campaign.load_theater(advanced_iads)
+    campaign = Campaign.from_file(params.campaign_path)
+    theater = campaign.load_theater(params.advanced_iads)
     faction_loader = Factions.load()
     lua_plugin_manager = LuaPluginManager.load()
     lua_plugin_manager.merge_player_settings()
     generator = GameGenerator(
-        faction_loader.get_by_name(blue),
-        faction_loader.get_by_name(red),
+        faction_loader.get_by_name(params.blue),
+        faction_loader.get_by_name(params.red),
         theater,
         campaign.load_air_wing_config(theater),
         Settings(
-            supercarrier=supercarrier,
-            automate_runway_repair=auto_procurement,
-            automate_front_line_reinforcements=auto_procurement,
-            automate_aircraft_reinforcements=auto_procurement,
-            enable_frontline_cheats=cheats,
-            enable_base_capture_cheat=cheats,
-            restrict_weapons_by_date=restrict_weapons_by_date,
-            enable_squadron_aircraft_limits=use_new_squadron_rules,
+            supercarrier=params.supercarrier,
+            automate_runway_repair=params.auto_procurement,
+            automate_front_line_reinforcements=params.auto_procurement,
+            automate_aircraft_reinforcements=params.auto_procurement,
+            enable_frontline_cheats=params.cheats,
+            enable_base_capture_cheat=params.cheats,
+            restrict_weapons_by_date=params.restrict_weapons_by_date,
+            enable_squadron_aircraft_limits=params.use_new_squadron_rules,
         ),
         GeneratorSettings(
-            start_date=start_date,
+            start_date=params.start_date,
             start_time=campaign.recommended_start_time,
             player_budget=DEFAULT_BUDGET,
             enemy_budget=DEFAULT_BUDGET,
-            inverted=inverted,
+            inverted=params.inverted,
             advanced_iads=theater.iads_network.advanced_iads,
             no_carrier=False,
             no_lha=False,
@@ -334,7 +356,7 @@ def create_game(
         lua_plugin_manager,
     )
     game = generator.generate()
-    game.begin_turn_0(squadrons_start_full=use_new_squadron_rules)
+    game.begin_turn_0(squadrons_start_full=params.use_new_squadron_rules)
     return game
 
 
@@ -417,19 +439,7 @@ def main():
 
     if args.subcommand == "new-game":
         with logged_duration("New game creation"):
-            game = create_game(
-                args.campaign,
-                args.blue,
-                args.red,
-                args.supercarrier,
-                args.auto_procurement,
-                args.inverted,
-                args.cheats,
-                args.date,
-                args.restrict_weapons_by_date,
-                args.advanced_iads,
-                args.use_new_squadron_rules,
-            )
+            game = create_game(CreateGameParams.from_args(args))
     if args.subcommand == "lint-weapons":
         lint_weapon_data_for_aircraft(AircraftType.named(args.aircraft))
         return