Move frozen combat handling out of MapModel.

game/server/combat/models.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+from uuid import UUID
+
+from pydantic import BaseModel
+
+from game.server.leaflet import LeafletLatLon, LeafletPoly, ShapelyUtil
+from game.sim.combat import FrozenCombat
+from game.sim.combat.aircombat import AirCombat
+from game.sim.combat.atip import AtIp
+from game.sim.combat.defendingsam import DefendingSam
+from game.theater import ConflictTheater
+
+
+class FrozenCombatJs(BaseModel):
+    id: UUID
+    flight_position: LeafletLatLon | None
+    target_positions: list[LeafletLatLon] | None
+    footprint: list[LeafletPoly] | None
+
+    @staticmethod
+    def for_combat(combat: FrozenCombat, theater: ConflictTheater) -> FrozenCombatJs:
+        if isinstance(combat, AirCombat):
+            return FrozenCombatJs(
+                id=combat.id,
+                flight_position=None,
+                target_positions=None,
+                footprint=ShapelyUtil.polys_to_leaflet(combat.footprint, theater),
+            )
+        if isinstance(combat, AtIp):
+            return FrozenCombatJs(
+                id=combat.id,
+                flight_position=theater.point_to_ll(combat.flight.position()).as_list(),
+                target_positions=[
+                    theater.point_to_ll(combat.flight.package.target.position).as_list()
+                ],
+                footprint=None,
+            )
+        if isinstance(combat, DefendingSam):
+            return FrozenCombatJs(
+                id=combat.id,
+                flight_position=theater.point_to_ll(combat.flight.position()).as_list(),
+                target_positions=[
+                    theater.point_to_ll(sam.position).as_list()
+                    for sam in combat.air_defenses
+                ],
+                footprint=None,
+            )
+        raise NotImplementedError(f"Unhandled FrozenCombat type: {combat.__class__}")