Add FastAPI interface between the game and map.

A possible explanation for the infrequent CTDs we've been seeing since
adding fast forward is that QWebChannel doesn't keep a reference to the
python objects that it passes to js, so if the object is GC'd before the
front end is done with it, it crashes.

We don't really like QWebChannel anyway, so this begins replacing that
with FastAPI.

game/ato/flight.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import uuid
 from datetime import datetime, timedelta
 from typing import Any, List, Optional, TYPE_CHECKING
 
@@ -36,6 +37,7 @@ class Flight:
         cargo: Optional[TransferOrder] = None,
         roster: Optional[FlightRoster] = None,
     ) -> None:
+        self.id = uuid.uuid4()
         self.package = package
         self.country = country
         self.squadron = squadron
@@ -91,6 +93,8 @@ class Flight:
         state["state"] = Uninitialized(self, state["squadron"].settings)
         if "props" not in state:
             state["props"] = {}
+        if "id" not in state:
+            state["id"] = uuid.uuid4()
         self.__dict__.update(state)
 
     @property

game/server/__init__.py

@@ -0,0 +1,2 @@
+from .dependencies import GameContext
+from .server import Server

game/server/app.py

@@ -0,0 +1,6 @@
+from fastapi import FastAPI
+
+from . import debuggeometries
+
+app = FastAPI()
+app.include_router(debuggeometries.router)

game/server/debuggeometries/__init__.py

@@ -0,0 +1 @@
+from .routes import router

game/server/debuggeometries/models.py

@@ -0,0 +1,126 @@
+from __future__ import annotations
+
+from pydantic import BaseModel, Field
+
+from game import Game
+from game.ato import Flight
+from game.flightplan import HoldZoneGeometry, IpZoneGeometry, JoinZoneGeometry
+from ..leaflet import LeafletPoly, ShapelyUtil
+
+
+class HoldZonesJs(BaseModel):
+    home_bubble: LeafletPoly = Field(alias="homeBubble")
+    target_bubble: LeafletPoly = Field(alias="targetBubble")
+    join_bubble: LeafletPoly = Field(alias="joinBubble")
+    excluded_zones: list[LeafletPoly] = Field(alias="excludedZones")
+    permissible_zones: list[LeafletPoly] = Field(alias="permissibleZones")
+    preferred_lines: list[LeafletPoly] = Field(alias="preferredLines")
+
+    @classmethod
+    def empty(cls) -> HoldZonesJs:
+        return HoldZonesJs(
+            homeBubble=[],
+            targetBubble=[],
+            joinBubble=[],
+            excludedZones=[],
+            permissibleZones=[],
+            preferredLines=[],
+        )
+
+    @classmethod
+    def for_flight(cls, flight: Flight, game: Game) -> HoldZonesJs:
+        target = flight.package.target
+        home = flight.departure
+        if flight.package.waypoints is None:
+            return HoldZonesJs.empty()
+        ip = flight.package.waypoints.ingress
+        join = flight.package.waypoints.join
+        geometry = HoldZoneGeometry(
+            target.position, home.position, ip, join, game.blue, game.theater
+        )
+        return HoldZonesJs(
+            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
+            targetBubble=ShapelyUtil.poly_to_leaflet(
+                geometry.target_bubble, game.theater
+            ),
+            joinBubble=ShapelyUtil.poly_to_leaflet(geometry.join_bubble, game.theater),
+            excludedZones=ShapelyUtil.polys_to_leaflet(
+                geometry.excluded_zones, game.theater
+            ),
+            permissibleZones=ShapelyUtil.polys_to_leaflet(
+                geometry.permissible_zones, game.theater
+            ),
+            preferredLines=ShapelyUtil.lines_to_leaflet(
+                geometry.preferred_lines, game.theater
+            ),
+        )
+
+
+class IpZonesJs(BaseModel):
+    home_bubble: LeafletPoly = Field(alias="homeBubble")
+    ipBubble: LeafletPoly = Field(alias="ipBubble")
+    permissibleZone: LeafletPoly = Field(alias="permissibleZone")
+    safeZones: list[LeafletPoly] = Field(alias="safeZones")
+
+    @classmethod
+    def empty(cls) -> IpZonesJs:
+        return IpZonesJs(homeBubble=[], ipBubble=[], permissibleZone=[], safeZones=[])
+
+    @classmethod
+    def for_flight(cls, flight: Flight, game: Game) -> IpZonesJs:
+        target = flight.package.target
+        home = flight.departure
+        geometry = IpZoneGeometry(target.position, home.position, game.blue)
+        return IpZonesJs(
+            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
+            ipBubble=ShapelyUtil.poly_to_leaflet(geometry.ip_bubble, game.theater),
+            permissibleZone=ShapelyUtil.poly_to_leaflet(
+                geometry.permissible_zone, game.theater
+            ),
+            safeZones=ShapelyUtil.polys_to_leaflet(geometry.safe_zones, game.theater),
+        )
+
+
+class JoinZonesJs(BaseModel):
+    home_bubble: LeafletPoly = Field(alias="homeBubble")
+    target_bubble: LeafletPoly = Field(alias="targetBubble")
+    ip_bubble: LeafletPoly = Field(alias="ipBubble")
+    excluded_zones: list[LeafletPoly] = Field(alias="excludedZones")
+    permissible_zones: list[LeafletPoly] = Field(alias="permissibleZones")
+    preferred_lines: list[LeafletPoly] = Field(alias="preferredLines")
+
+    @classmethod
+    def empty(cls) -> JoinZonesJs:
+        return JoinZonesJs(
+            homeBubble=[],
+            targetBubble=[],
+            ipBubble=[],
+            excludedZones=[],
+            permissibleZones=[],
+            preferredLines=[],
+        )
+
+    @classmethod
+    def for_flight(cls, flight: Flight, game: Game) -> JoinZonesJs:
+        target = flight.package.target
+        home = flight.departure
+        if flight.package.waypoints is None:
+            return JoinZonesJs.empty()
+        ip = flight.package.waypoints.ingress
+        geometry = JoinZoneGeometry(target.position, home.position, ip, game.blue)
+        return JoinZonesJs(
+            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
+            targetBubble=ShapelyUtil.poly_to_leaflet(
+                geometry.target_bubble, game.theater
+            ),
+            ipBubble=ShapelyUtil.poly_to_leaflet(geometry.ip_bubble, game.theater),
+            excludedZones=ShapelyUtil.polys_to_leaflet(
+                geometry.excluded_zones, game.theater
+            ),
+            permissibleZones=ShapelyUtil.polys_to_leaflet(
+                geometry.permissible_zones, game.theater
+            ),
+            preferredLines=ShapelyUtil.lines_to_leaflet(
+                geometry.preferred_lines, game.theater
+            ),
+        )

game/server/debuggeometries/routes.py

@@ -0,0 +1,38 @@
+from uuid import UUID
+
+from fastapi import APIRouter, Depends
+
+from game import Game
+from game.ato import Flight
+from game.server import GameContext
+from .models import HoldZonesJs, IpZonesJs, JoinZonesJs
+
+router = APIRouter(prefix="/debug/waypoint-geometries")
+
+
+# TODO: Maintain map of UUID -> Flight in Game.
+def find_flight(game: Game, flight_id: UUID) -> Flight:
+    for coalition in game.coalitions:
+        for package in coalition.ato.packages:
+            for flight in package.flights:
+                if flight.id == flight_id:
+                    return flight
+    raise KeyError(f"No flight found with ID {flight_id}")
+
+
+@router.get("/hold/{flight_id}")
+def hold_zones(flight_id: UUID, game: Game = Depends(GameContext.get)) -> HoldZonesJs:
+    flight = find_flight(game, flight_id)
+    return HoldZonesJs.for_flight(flight, game)
+
+
+@router.get("/ip/{flight_id}")
+def ip_zones(flight_id: UUID, game: Game = Depends(GameContext.get)) -> IpZonesJs:
+    flight = find_flight(game, flight_id)
+    return IpZonesJs.for_flight(flight, game)
+
+
+@router.get("/join/{flight_id}")
+def join_zones(flight_id: UUID, game: Game = Depends(GameContext.get)) -> JoinZonesJs:
+    flight = find_flight(game, flight_id)
+    return JoinZonesJs.for_flight(flight, game)

game/server/dependencies.py

@@ -0,0 +1,15 @@
+from game import Game
+
+
+class GameContext:
+    _game: Game | None
+
+    @classmethod
+    def set(cls, game: Game | None) -> None:
+        cls._game = game
+
+    @classmethod
+    def get(cls) -> Game:
+        if cls._game is None:
+            raise RuntimeError("GameContext has no Game set")
+        return cls._game

game/server/leaflet.py

@@ -1,10 +1,14 @@
+from __future__ import annotations
+
 from typing import Union
 
 from dcs import Point
 from shapely.geometry import LineString, MultiLineString, MultiPolygon, Polygon
 
 from game.theater import ConflictTheater
-from .leaflet import LeafletLatLon, LeafletPoly
+
+LeafletLatLon = list[float]
+LeafletPoly = list[LeafletLatLon]
 
 
 class ShapelyUtil:

game/server/server.py

@@ -0,0 +1,35 @@
+import time
+from collections.abc import Iterator
+from contextlib import contextmanager
+from threading import Thread
+
+import uvicorn
+from uvicorn import Config
+
+from game.server.settings import ServerSettings
+
+
+class Server(uvicorn.Server):
+    def __init__(self) -> None:
+        super().__init__(
+            Config(
+                "game.server.app:app",
+                host=ServerSettings.get().server_bind_address,
+                port=ServerSettings.get().server_port,
+                log_level="info",
+            )
+        )
+
+    @contextmanager
+    def run_in_thread(self) -> Iterator[None]:
+        # This relies on undocumented behavior, but it is what the developer recommends:
+        # https://github.com/encode/uvicorn/issues/742
+        thread = Thread(target=self.run)
+        thread.start()
+        try:
+            while not self.started:
+                time.sleep(1e-3)
+            yield
+        finally:
+            self.should_exit = True
+            thread.join()

game/server/settings.py

@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from functools import lru_cache
+
+from pydantic import BaseSettings
+
+
+class ServerSettings(BaseSettings):
+    """Settings controlling server behavior.
+
+    The values listed here will be automatically modified based on the environment. e.g.
+    running with SERVER_BIND_ADDRESS=0.0.0.0 will cause the server to bind to all
+    interfaces.
+
+    https://fastapi.tiangolo.com/advanced/settings
+    """
+
+    # WARNING: Be extremely cautious exposing the server to other machines. As there is
+    # no client/server workflow yet, security has not been a focus.
+    server_bind_address: str = "::1"
+
+    # If you for some reason change the port, you'll need to also update map.js.
+    server_port: int = 5000
+
+    @classmethod
+    @lru_cache
+    def get(cls) -> ServerSettings:
+        return cls()

mypy.ini

@@ -22,3 +22,6 @@ ignore_missing_imports = True
 [mypy-shapely.*]
 # https://github.com/Toblerity/Shapely/issues/721
 ignore_missing_imports = True
+
+[mypy-uvicorn.*]
+ignore_missing_imports = True

qt_ui/main.py

@@ -9,7 +9,7 @@ from typing import Optional
 from PySide2 import QtWidgets
 from PySide2.QtCore import Qt
 from PySide2.QtGui import QPixmap
-from PySide2.QtWidgets import QApplication, QSplashScreen, QCheckBox
+from PySide2.QtWidgets import QApplication, QCheckBox, QSplashScreen
 from dcs.payloads import PayloadDirectories
 
 from game import Game, VERSION, persistency
@@ -18,6 +18,7 @@ from game.data.weapons import Pylon, Weapon, WeaponGroup
 from game.db import FACTIONS
 from game.dcs.aircrafttype import AircraftType
 from game.profiling import logged_duration
+from game.server import GameContext, Server
 from game.settings import Settings
 from game.theater.start_generator import GameGenerator, GeneratorSettings, ModSettings
 from qt_ui import (
@@ -135,6 +136,7 @@ def run_ui(game: Optional[Game]) -> None:
 
     # Apply CSS (need works)
     GameUpdateSignal()
+    GameUpdateSignal.get_instance().game_loaded.connect(GameContext.set)
 
     # Start window
     window = QLiberationWindow(game)
@@ -333,6 +335,7 @@ def main():
         lint_weapon_data_for_aircraft(AircraftType.named(args.aircraft))
         return
 
+    with Server().run_in_thread():
         run_ui(game)
 
 

qt_ui/widgets/map/QLiberationMap.py

@@ -10,6 +10,7 @@ from PySide2.QtCore import QUrl
 from PySide2.QtWebChannel import QWebChannel
 from PySide2.QtWebEngineWidgets import (
     QWebEnginePage,
+    QWebEngineSettings,
     QWebEngineView,
 )
 
@@ -48,6 +49,11 @@ class QLiberationMap(QWebEngineView):
         self.channel.registerObject("game", self.map_model)
 
         self.page = LoggingWebPage(self)
+        # Required to allow "cross-origin" access from file:// scoped canvas.html to the
+        # localhost HTTP backend.
+        self.page.settings().setAttribute(
+            QWebEngineSettings.LocalContentCanAccessRemoteUrls, True
+        )
         self.page.setWebChannel(self.channel)
         self.page.load(
             QUrl.fromLocalFile(str(Path("resources/ui/map/canvas.html").resolve()))

qt_ui/widgets/map/model/aircombatjs.py

@@ -1,9 +1,8 @@
 from PySide2.QtCore import Property, QObject, Signal
 
+from game.server.leaflet import LeafletPoly, ShapelyUtil
 from game.sim.combat.aircombat import AirCombat
 from game.theater import ConflictTheater
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
 
 
 class AirCombatJs(QObject):

qt_ui/widgets/map/model/config.py

@@ -1,3 +0,0 @@
-# Set to True to enable computing expensive debugging information. At the time of
-# writing this only controls computing the waypoint placement zones.
-ENABLE_EXPENSIVE_DEBUG_TOOLS = False

qt_ui/widgets/map/model/controlpointjs.py

@@ -5,12 +5,12 @@ from typing import Optional
 from PySide2.QtCore import Property, QObject, Signal, Slot
 from dcs import Point
 
+from game.server.leaflet import LeafletLatLon
 from game.theater import ConflictTheater, ControlPoint, ControlPointStatus, LatLon
 from game.utils import meters, nautical_miles
 from qt_ui.dialogs import Dialog
 from qt_ui.models import GameModel
 from qt_ui.windows.basemenu.QBaseMenu2 import QBaseMenu2
-from .leaflet import LeafletLatLon
 
 MAX_SHIP_DISTANCE = nautical_miles(80)
 

qt_ui/widgets/map/model/flightjs.py

@@ -8,12 +8,11 @@ from shapely.geometry import LineString, Point as ShapelyPoint
 from game.ato import Flight, FlightWaypoint
 from game.ato.flightstate import InFlight
 from game.ato.flightwaypointtype import FlightWaypointType
+from game.server.leaflet import LeafletLatLon, LeafletPoly, ShapelyUtil
 from game.theater import ConflictTheater
 from game.utils import meters
 from gen.flights.flightplan import CasFlightPlan, PatrollingFlightPlan
 from qt_ui.models import AtoModel
-from .leaflet import LeafletLatLon, LeafletPoly
-from .shapelyutil import ShapelyUtil
 from .waypointjs import WaypointJs
 
 

qt_ui/widgets/map/model/frontlinejs.py

@@ -4,10 +4,10 @@ from typing import List
 
 from PySide2.QtCore import Property, QObject, Signal, Slot
 
+from game.server.leaflet import LeafletLatLon
 from game.theater import ConflictTheater, FrontLine
 from game.utils import nautical_miles
 from qt_ui.dialogs import Dialog
-from .leaflet import LeafletLatLon
 
 
 class FrontLineJs(QObject):

qt_ui/widgets/map/model/groundobjectjs.py

@@ -8,9 +8,9 @@ from dcs.vehicles import vehicle_map
 
 from game import Game
 from game.dcs.groundunittype import GroundUnitType
+from game.server.leaflet import LeafletLatLon
 from game.theater import TheaterGroundObject
 from qt_ui.dialogs import Dialog
-from qt_ui.widgets.map.model.leaflet import LeafletLatLon
 from qt_ui.windows.groundobject.QGroundObjectMenu import QGroundObjectMenu
 
 

qt_ui/widgets/map/model/holdzonesjs.py

@@ -1,60 +0,0 @@
-from __future__ import annotations
-
-from pydantic import BaseModel, Field
-
-from game import Game
-from game.ato import Flight
-from game.flightplan import HoldZoneGeometry
-from .config import ENABLE_EXPENSIVE_DEBUG_TOOLS
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
-
-
-class HoldZonesJs(BaseModel):
-    home_bubble: LeafletPoly = Field(alias="homeBubble")
-    target_bubble: LeafletPoly = Field(alias="targetBubble")
-    join_bubble: LeafletPoly = Field(alias="joinBubble")
-    excluded_zones: list[LeafletPoly] = Field(alias="excludedZones")
-    permissible_zones: list[LeafletPoly] = Field(alias="permissibleZones")
-    preferred_lines: list[LeafletPoly] = Field(alias="preferredLines")
-
-    @classmethod
-    def empty(cls) -> HoldZonesJs:
-        return HoldZonesJs(
-            homeBubble=[],
-            targetBubble=[],
-            joinBubble=[],
-            excludedZones=[],
-            permissibleZones=[],
-            preferredLines=[],
-        )
-
-    @classmethod
-    def for_flight(cls, flight: Flight, game: Game) -> HoldZonesJs:
-        if not ENABLE_EXPENSIVE_DEBUG_TOOLS:
-            return HoldZonesJs.empty()
-        target = flight.package.target
-        home = flight.departure
-        if flight.package.waypoints is None:
-            return HoldZonesJs.empty()
-        ip = flight.package.waypoints.ingress
-        join = flight.package.waypoints.join
-        geometry = HoldZoneGeometry(
-            target.position, home.position, ip, join, game.blue, game.theater
-        )
-        return HoldZonesJs(
-            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
-            targetBubble=ShapelyUtil.poly_to_leaflet(
-                geometry.target_bubble, game.theater
-            ),
-            joinBubble=ShapelyUtil.poly_to_leaflet(geometry.join_bubble, game.theater),
-            excludedZones=ShapelyUtil.polys_to_leaflet(
-                geometry.excluded_zones, game.theater
-            ),
-            permissibleZones=ShapelyUtil.polys_to_leaflet(
-                geometry.permissible_zones, game.theater
-            ),
-            preferredLines=ShapelyUtil.lines_to_leaflet(
-                geometry.preferred_lines, game.theater
-            ),
-        )

qt_ui/widgets/map/model/ipzonesjs.py

@@ -1,37 +0,0 @@
-from __future__ import annotations
-
-from pydantic import BaseModel, Field
-
-from game import Game
-from game.ato import Flight
-from game.flightplan import IpZoneGeometry
-from .config import ENABLE_EXPENSIVE_DEBUG_TOOLS
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
-
-
-class IpZonesJs(BaseModel):
-    home_bubble: LeafletPoly = Field(alias="homeBubble")
-    ipBubble: LeafletPoly = Field(alias="ipBubble")
-    permissibleZone: LeafletPoly = Field(alias="permissibleZone")
-    safeZones: list[LeafletPoly] = Field(alias="safeZones")
-
-    @classmethod
-    def empty(cls) -> IpZonesJs:
-        return IpZonesJs(homeBubble=[], ipBubble=[], permissibleZone=[], safeZones=[])
-
-    @classmethod
-    def for_flight(cls, flight: Flight, game: Game) -> IpZonesJs:
-        if not ENABLE_EXPENSIVE_DEBUG_TOOLS:
-            return IpZonesJs.empty()
-        target = flight.package.target
-        home = flight.departure
-        geometry = IpZoneGeometry(target.position, home.position, game.blue)
-        return IpZonesJs(
-            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
-            ipBubble=ShapelyUtil.poly_to_leaflet(geometry.ip_bubble, game.theater),
-            permissibleZone=ShapelyUtil.poly_to_leaflet(
-                geometry.permissible_zone, game.theater
-            ),
-            safeZones=ShapelyUtil.polys_to_leaflet(geometry.safe_zones, game.theater),
-        )

qt_ui/widgets/map/model/joinzonesjs.py

@@ -1,58 +0,0 @@
-from __future__ import annotations
-
-from pydantic import Field
-from pydantic.main import BaseModel
-
-from game import Game
-from game.ato import Flight
-from game.flightplan import JoinZoneGeometry
-from .config import ENABLE_EXPENSIVE_DEBUG_TOOLS
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
-
-
-class JoinZonesJs(BaseModel):
-    home_bubble: LeafletPoly = Field(alias="homeBubble")
-    target_bubble: LeafletPoly = Field(alias="targetBubble")
-    ip_bubble: LeafletPoly = Field(alias="ipBubble")
-    excluded_zones: list[LeafletPoly] = Field(alias="excludedZones")
-    permissible_zones: list[LeafletPoly] = Field(alias="permissibleZones")
-    preferred_lines: list[LeafletPoly] = Field(alias="preferredLines")
-
-    @classmethod
-    def empty(cls) -> JoinZonesJs:
-        return JoinZonesJs(
-            homeBubble=[],
-            targetBubble=[],
-            ipBubble=[],
-            excludedZones=[],
-            permissibleZones=[],
-            preferredLines=[],
-        )
-
-    @classmethod
-    def for_flight(cls, flight: Flight, game: Game) -> JoinZonesJs:
-        if not ENABLE_EXPENSIVE_DEBUG_TOOLS:
-            return JoinZonesJs.empty()
-        target = flight.package.target
-        home = flight.departure
-        if flight.package.waypoints is None:
-            return JoinZonesJs.empty()
-        ip = flight.package.waypoints.ingress
-        geometry = JoinZoneGeometry(target.position, home.position, ip, game.blue)
-        return JoinZonesJs(
-            homeBubble=ShapelyUtil.poly_to_leaflet(geometry.home_bubble, game.theater),
-            targetBubble=ShapelyUtil.poly_to_leaflet(
-                geometry.target_bubble, game.theater
-            ),
-            ipBubble=ShapelyUtil.poly_to_leaflet(geometry.ip_bubble, game.theater),
-            excludedZones=ShapelyUtil.polys_to_leaflet(
-                geometry.excluded_zones, game.theater
-            ),
-            permissibleZones=ShapelyUtil.polys_to_leaflet(
-                geometry.permissible_zones, game.theater
-            ),
-            preferredLines=ShapelyUtil.lines_to_leaflet(
-                geometry.preferred_lines, game.theater
-            ),
-        )

qt_ui/widgets/map/model/leaflet.py

@@ -1,4 +0,0 @@
-from __future__ import annotations
-
-LeafletLatLon = list[float]
-LeafletPoly = list[LeafletLatLon]

qt_ui/widgets/map/model/mapmodel.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import json
 import logging
 from typing import List, Optional, Tuple
 
@@ -10,6 +9,7 @@ from dcs import Point
 from game import Game
 from game.ato.airtaaskingorder import AirTaskingOrder
 from game.profiling import logged_duration
+from game.server.leaflet import LeafletLatLon
 from game.sim.combat import FrozenCombat
 from game.sim.combat.aircombat import AirCombat
 from game.sim.combat.atip import AtIp
@@ -26,11 +26,7 @@ from .controlpointjs import ControlPointJs
 from .flightjs import FlightJs
 from .frontlinejs import FrontLineJs
 from .groundobjectjs import GroundObjectJs
-from .holdzonesjs import HoldZonesJs
 from .ipcombatjs import IpCombatJs
-from .ipzonesjs import IpZonesJs
-from .joinzonesjs import JoinZonesJs
-from .leaflet import LeafletLatLon
 from .mapzonesjs import MapZonesJs
 from .navmeshjs import NavMeshJs
 from .samcombatjs import SamCombatJs
@@ -69,12 +65,10 @@ class MapModel(QObject):
     navmeshesChanged = Signal()
     mapZonesChanged = Signal()
     unculledZonesChanged = Signal()
-    ipZonesChanged = Signal()
-    joinZonesChanged = Signal()
-    holdZonesChanged = Signal()
     airCombatsChanged = Signal()
     samCombatsChanged = Signal()
     ipCombatsChanged = Signal()
+    selectedFlightChanged = Signal(str)
 
     def __init__(self, game_model: GameModel, sim_controller: SimController) -> None:
         super().__init__()
@@ -91,9 +85,6 @@ class MapModel(QObject):
         self._navmeshes = NavMeshJs([], [])
         self._map_zones = MapZonesJs([], [], [])
         self._unculled_zones = []
-        self._ip_zones = IpZonesJs.empty()
-        self._join_zones = JoinZonesJs.empty()
-        self._hold_zones = HoldZonesJs.empty()
         self._selected_flight_index: Optional[Tuple[int, int]] = None
         self._air_combats = []
         self._sam_combats = []
@@ -128,7 +119,6 @@ class MapModel(QObject):
         self._navmeshes = NavMeshJs([], [])
         self._map_zones = MapZonesJs([], [], [])
         self._unculled_zones = []
-        self._ip_zones = IpZonesJs.empty()
         self._air_combats = []
         self._sam_combats = []
         self._ip_combats = []
@@ -155,7 +145,6 @@ class MapModel(QObject):
         else:
             self._selected_flight_index = index, 0
         self.select_current_flight()
-        self.reset_debug_zones()
 
     def set_flight_selection(self, index: int) -> None:
         self.deselect_current_flight()
@@ -174,7 +163,6 @@ class MapModel(QObject):
             self._selected_flight_index = self._selected_flight_index[0], None
         self._selected_flight_index = self._selected_flight_index[0], index
         self.select_current_flight()
-        self.reset_debug_zones()
 
     @property
     def _selected_flight(self) -> Optional[FlightJs]:
@@ -193,8 +181,10 @@ class MapModel(QObject):
     def select_current_flight(self):
         flight = self._selected_flight
         if flight is None:
+            self.selectedFlightChanged.emit(None)
             return None
         flight.set_selected(True)
+        self.selectedFlightChanged.emit(str(flight.flight.id))
 
     @staticmethod
     def leaflet_coord_for(point: Point, theater: ConflictTheater) -> LeafletLatLon:
@@ -249,23 +239,6 @@ class MapModel(QObject):
             self.game.blue.ato, blue=True
         ) | self._flights_in_ato(self.game.red.ato, blue=False)
         self.flightsChanged.emit()
-        self.reset_debug_zones()
-
-    def reset_debug_zones(self) -> None:
-        selected_flight = None
-        if self._selected_flight is not None:
-            selected_flight = self._selected_flight.flight
-        if selected_flight is None:
-            self._ip_zones = IpZonesJs.empty()
-            self._join_zones = JoinZonesJs.empty()
-            self._hold_zones = HoldZonesJs.empty()
-        else:
-            self._ip_zones = IpZonesJs.for_flight(selected_flight, self.game)
-            self._join_zones = JoinZonesJs.for_flight(selected_flight, self.game)
-            self._hold_zones = HoldZonesJs.for_flight(selected_flight, self.game)
-        self.ipZonesChanged.emit()
-        self.joinZonesChanged.emit()
-        self.holdZonesChanged.emit()
 
     @Property(list, notify=flightsChanged)
     def flights(self) -> list[FlightJs]:
@@ -397,20 +370,6 @@ class MapModel(QObject):
     def unculledZones(self) -> list[UnculledZone]:
         return self._unculled_zones
 
-    @Property(str, notify=ipZonesChanged)
-    def ipZones(self) -> str:
-        return json.dumps(self._ip_zones.dict(by_alias=True))
-
-    @Property(str, notify=joinZonesChanged)
-    def joinZones(self) -> str:
-        # Must be dumped as a string and deserialized in js because QWebChannel can't
-        # handle a dict. Can be cleaned up by switching from QWebChannel to FastAPI.
-        return json.dumps(self._join_zones.dict(by_alias=True))
-
-    @Property(str, notify=holdZonesChanged)
-    def holdZones(self) -> str:
-        return json.dumps(self._hold_zones.dict(by_alias=True))
-
     def reset_combats(self) -> None:
         self._air_combats = []
         self._sam_combats = []

qt_ui/widgets/map/model/mapzonesjs.py

@@ -3,8 +3,7 @@ from __future__ import annotations
 from PySide2.QtCore import Property, QObject, Signal
 
 from game import Game
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
+from game.server.leaflet import LeafletPoly, ShapelyUtil
 
 
 class MapZonesJs(QObject):

qt_ui/widgets/map/model/navmeshjs.py

@@ -4,8 +4,8 @@ from PySide2.QtCore import Property, QObject, Signal
 
 from game import Game
 from game.navmesh import NavMesh
+from game.server.leaflet import LeafletPoly
 from game.theater import ConflictTheater
-from .leaflet import LeafletPoly
 from .navmeshpolyjs import NavMeshPolyJs
 
 

qt_ui/widgets/map/model/navmeshpolyjs.py

@@ -3,9 +3,8 @@ from __future__ import annotations
 from PySide2.QtCore import Property, QObject, Signal
 
 from game.navmesh import NavMeshPoly
+from game.server.leaflet import LeafletPoly, ShapelyUtil
 from game.theater import ConflictTheater
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
 
 
 class NavMeshPolyJs(QObject):

qt_ui/widgets/map/model/supplyroutejs.py

@@ -5,9 +5,9 @@ from typing import List
 from PySide2.QtCore import Property, QObject, Signal
 
 from game import Game
+from game.server.leaflet import LeafletLatLon
 from game.theater import ControlPoint
 from game.transfers import MultiGroupTransport, TransportMap
-from .leaflet import LeafletLatLon
 
 
 class SupplyRouteJs(QObject):

qt_ui/widgets/map/model/threatzonesjs.py

@@ -2,10 +2,9 @@ from __future__ import annotations
 
 from PySide2.QtCore import Property, QObject, Signal
 
+from game.server.leaflet import LeafletPoly, ShapelyUtil
 from game.theater import ConflictTheater
 from game.threatzones import ThreatZones
-from .leaflet import LeafletPoly
-from .shapelyutil import ShapelyUtil
 
 
 class ThreatZonesJs(QObject):

qt_ui/widgets/map/model/unculledzonejs.py

@@ -5,7 +5,7 @@ from typing import Iterator
 from PySide2.QtCore import Property, QObject, Signal
 
 from game import Game
-from .leaflet import LeafletLatLon
+from game.server.leaflet import LeafletLatLon
 
 
 class UnculledZone(QObject):

qt_ui/widgets/map/model/waypointjs.py

@@ -7,10 +7,10 @@ from PySide2.QtCore import Property, QObject, Signal, Slot
 
 from game.ato import Flight, FlightWaypoint
 from game.ato.flightwaypointtype import FlightWaypointType
+from game.server.leaflet import LeafletLatLon
 from game.theater import ConflictTheater, LatLon
 from gen.flights.flightplan import FlightPlan
 from qt_ui.models import AtoModel
-from .leaflet import LeafletLatLon
 
 if TYPE_CHECKING:
     from .flightjs import FlightJs

requirements.txt

@@ -1,4 +1,6 @@
 altgraph==0.17.2
+anyio==3.5.0
+asgiref==3.5.0
 atomicwrites==1.4.0
 attrs==21.4.0
 black==22.1.0
@@ -8,9 +10,13 @@ click==8.0.3
 colorama==0.4.4
 distlib==0.3.4
 Faker==12.3.0
+fastapi==0.73.0
 filelock==3.4.2
 future==0.18.2
+h11==0.13.0
+httptools==0.3.0
 identify==2.4.9
+idna==3.3
 iniconfig==1.1.1
 Jinja2==3.0.3
 MarkupSafe==2.0.1
@@ -34,11 +40,14 @@ pyproj==3.3.0
 PySide2==5.15.2.1
 pytest==7.0.1
 python-dateutil==2.8.2
+python-dotenv==0.19.2
 pywin32-ctypes==0.2.0
 PyYAML==6.0
 ./wheels/Shapely-1.8.0-cp310-cp310-win_amd64.whl
 shiboken2==5.15.2.1
 six==1.16.0
+sniffio==1.2.0
+starlette==0.17.1
 tabulate==0.8.9
 text-unidecode==1.3
 toml==0.10.2
@@ -49,4 +58,7 @@ types-Pillow==9.0.6
 types-PyYAML==6.0.4
 types-tabulate==0.8.5
 typing_extensions==4.0.1
+uvicorn==0.17.4
 virtualenv==20.13.1
+watchgod==0.7
+websockets==10.1

resources/ui/map/map.js

@@ -1,6 +1,12 @@
-// Won't actually enable anything unless the same property is set in
-// mapmodel.py.
 const ENABLE_EXPENSIVE_DEBUG_TOOLS = false;
+// Must be kept in sync with game.server.settings.ServerSettings.
+const HTTP_BACKEND = "http://[::1]:5000";
+
+function getJson(endpoint) {
+  return fetch(`${HTTP_BACKEND}${endpoint}`).then((response) =>
+    response.json()
+  );
+}
 
 const Colors = Object.freeze({
   Blue: "#0084ff",
@@ -350,18 +356,29 @@ new QWebChannel(qt.webChannelTransport, function (channel) {
   game.navmeshesChanged.connect(drawNavmeshes);
   game.mapZonesChanged.connect(drawMapZones);
   game.unculledZonesChanged.connect(drawUnculledZones);
-  game.ipZonesChanged.connect(drawIpZones);
-  game.joinZonesChanged.connect(drawJoinZones);
-  game.holdZonesChanged.connect(drawHoldZones);
   game.airCombatsChanged.connect(drawCombat);
   game.samCombatsChanged.connect(drawCombat);
   game.ipCombatsChanged.connect(drawCombat);
+  game.selectedFlightChanged.connect(updateSelectedFlight);
 });
 
 function recenterMap(center) {
   map.setView(center, 8, { animate: true, duration: 1 });
 }
 
+function updateSelectedFlight(id) {
+  if (id == null) {
+    holdZones.clearLayers();
+    ipZones.clearLayers();
+    joinZones.clearLayers();
+    return;
+  }
+
+  drawHoldZones(id);
+  drawIpZones(id);
+  drawJoinZones(id);
+}
+
 class ControlPoint {
   constructor(cp) {
     this.cp = cp;
@@ -1099,15 +1116,14 @@ function drawUnculledZones() {
   }
 }
 
-function drawIpZones() {
+function drawIpZones(id) {
   ipZones.clearLayers();
 
   if (!ENABLE_EXPENSIVE_DEBUG_TOOLS) {
     return;
   }
 
-  const iz = JSON.parse(game.ipZones);
-
+  getJson(`/debug/waypoint-geometries/ip/${id}`).then((iz) => {
     L.polygon(iz.homeBubble, {
       color: Colors.Highlight,
       fillOpacity: 0.1,
@@ -1133,17 +1149,17 @@ function drawIpZones() {
         interactive: false,
       }).addTo(ipZones);
     }
+  });
 }
 
-function drawJoinZones() {
+function drawJoinZones(id) {
   joinZones.clearLayers();
 
   if (!ENABLE_EXPENSIVE_DEBUG_TOOLS) {
     return;
   }
 
-  const jz = JSON.parse(game.joinZones);
-
+  getJson(`/debug/waypoint-geometries/join/${id}`).then((jz) => {
     L.polygon(jz.homeBubble, {
       color: Colors.Highlight,
       fillOpacity: 0.1,
@@ -1184,17 +1200,17 @@ function drawJoinZones() {
         interactive: false,
       }).addTo(joinZones);
     }
+  });
 }
 
-function drawHoldZones() {
+function drawHoldZones(id) {
   holdZones.clearLayers();
 
   if (!ENABLE_EXPENSIVE_DEBUG_TOOLS) {
     return;
   }
 
-  const hz = JSON.parse(game.holdZones);
-
+  getJson(`/debug/waypoint-geometries/hold/${id}`).then((hz) => {
     L.polygon(hz.homeBubble, {
       color: Colors.Highlight,
       fillOpacity: 0.1,
@@ -1235,6 +1251,7 @@ function drawHoldZones() {
         interactive: false,
       }).addTo(holdZones);
     }
+  });
 }
 
 function drawCombat() {
@@ -1276,9 +1293,6 @@ function drawInitialMap() {
   drawNavmeshes();
   drawMapZones();
   drawUnculledZones();
-  drawIpZones();
-  drawJoinZones();
-  drawHoldZones();
   drawCombat();
 }