Refactor simulation and viewer architecture

apps/viewer/src/viewerSelection.ts

@@ -0,0 +1,216 @@
+import type { SystemSnapshot } from "./contracts";
+import type {
+  CameraMode,
+  OrbitalAnchor,
+  Selectable,
+  SelectionGroup,
+  WorldState,
+} from "./viewerTypes";
+
+export function describeSelectable(world: WorldState | undefined, item: Selectable): string {
+  if (!world) {
+    return item.kind;
+  }
+  if (item.kind === "ship") {
+    return world.ships.get(item.id)?.label ?? item.id;
+  }
+  if (item.kind === "station") {
+    return world.stations.get(item.id)?.label ?? item.id;
+  }
+  if (item.kind === "node") {
+    return item.id;
+  }
+  if (item.kind === "spatial-node") {
+    return `${world.spatialNodes.get(item.id)?.kind ?? "node"} ${item.id}`;
+  }
+  if (item.kind === "bubble") {
+    return `bubble ${item.id}`;
+  }
+  if (item.kind === "claim") {
+    return `claim ${item.id}`;
+  }
+  if (item.kind === "construction-site") {
+    return `construction ${item.id}`;
+  }
+  if (item.kind === "planet") {
+    return world.systems.get(item.systemId)?.planets[item.planetIndex]?.label ?? `${item.systemId}:${item.planetIndex}`;
+  }
+  return world.systems.get(item.id)?.label ?? item.id;
+}
+
+export function getSelectionGroup(item: Selectable): SelectionGroup {
+  if (item.kind === "ship") {
+    return "ships";
+  }
+  if (
+    item.kind === "station"
+    || item.kind === "node"
+    || item.kind === "spatial-node"
+    || item.kind === "bubble"
+    || item.kind === "claim"
+    || item.kind === "construction-site"
+  ) {
+    return "structures";
+  }
+  return "celestials";
+}
+
+export function resolveSelectableSystemId(world: WorldState | undefined, selection: Selectable): string | undefined {
+  if (!world) {
+    return undefined;
+  }
+
+  if (selection.kind === "ship") {
+    return world.ships.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "station") {
+    return world.stations.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "node") {
+    return world.nodes.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "spatial-node") {
+    return world.spatialNodes.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "bubble") {
+    return world.localBubbles.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "claim") {
+    return world.claims.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "construction-site") {
+    return world.constructionSites.get(selection.id)?.systemId;
+  }
+  if (selection.kind === "planet") {
+    return selection.systemId;
+  }
+  return selection.id;
+}
+
+export function resolveFocusedBubbleId(world: WorldState | undefined, selectedItems: Selectable[]): string | undefined {
+  if (!world || selectedItems.length !== 1) {
+    return undefined;
+  }
+
+  const selected = selectedItems[0];
+  if (selected.kind === "bubble") {
+    return selected.id;
+  }
+  if (selected.kind === "ship") {
+    return world.ships.get(selected.id)?.bubbleId ?? world.ships.get(selected.id)?.spatialState.currentBubbleId ?? undefined;
+  }
+  if (selected.kind === "station") {
+    return world.stations.get(selected.id)?.bubbleId ?? undefined;
+  }
+  if (selected.kind === "spatial-node") {
+    return world.spatialNodes.get(selected.id)?.bubbleId ?? undefined;
+  }
+  if (selected.kind === "claim") {
+    return world.claims.get(selected.id)?.bubbleId ?? undefined;
+  }
+  if (selected.kind === "construction-site") {
+    return world.constructionSites.get(selected.id)?.bubbleId ?? undefined;
+  }
+  return undefined;
+}
+
+export function describeOrbitalParent(world: WorldState | undefined, systemId?: string, anchor?: OrbitalAnchor): string {
+  if (!world || !systemId) {
+    return "unknown";
+  }
+
+  const system = world.systems.get(systemId);
+  if (!system) {
+    return systemId;
+  }
+
+  if (!anchor || anchor.kind === "star") {
+    return `${system.label} star`;
+  }
+
+  const planet = system.planets[anchor.planetIndex];
+  if (!planet) {
+    return `${system.label} star`;
+  }
+
+  if (anchor.kind === "planet") {
+    return planet.label;
+  }
+
+  return `${planet.label} moon ${anchor.moonIndex + 1}`;
+}
+
+export function renderSystemDetails(
+  world: WorldState | undefined,
+  system: SystemSnapshot,
+  activeContext: boolean,
+  cameraMode: CameraMode,
+  cameraTargetShipId?: string,
+): string {
+  if (!world) {
+    return "";
+  }
+
+  let shipCount = 0;
+  let stationCount = 0;
+  let nodeCount = 0;
+  let spatialNodeCount = 0;
+  let bubbleCount = 0;
+  let claimCount = 0;
+  let constructionCount = 0;
+  let moonCount = 0;
+
+  for (const ship of world.ships.values()) {
+    if (ship.systemId === system.id) {
+      shipCount += 1;
+    }
+  }
+  for (const station of world.stations.values()) {
+    if (station.systemId === system.id) {
+      stationCount += 1;
+    }
+  }
+  for (const node of world.nodes.values()) {
+    if (node.systemId === system.id) {
+      nodeCount += 1;
+    }
+  }
+  for (const node of world.spatialNodes.values()) {
+    if (node.systemId === system.id) {
+      spatialNodeCount += 1;
+    }
+  }
+  for (const bubble of world.localBubbles.values()) {
+    if (bubble.systemId === system.id) {
+      bubbleCount += 1;
+    }
+  }
+  for (const claim of world.claims.values()) {
+    if (claim.systemId === system.id) {
+      claimCount += 1;
+    }
+  }
+  for (const site of world.constructionSites.values()) {
+    if (site.systemId === system.id) {
+      constructionCount += 1;
+    }
+  }
+  for (const planet of system.planets) {
+    moonCount += planet.moonCount;
+  }
+
+  const followText = activeContext && cameraMode === "follow" && cameraTargetShipId
+    ? `<p>Camera locked to ${world.ships.get(cameraTargetShipId)?.label ?? cameraTargetShipId}</p>`
+    : "";
+
+  return `
+    <p>${system.id}${activeContext ? " · active system" : ""}</p>
+    <p>${system.starKind} · ${system.starCount} star${system.starCount > 1 ? "s" : ""}</p>
+    <p>Planets ${system.planets.length}<br>Moons ${moonCount}<br>Ships ${shipCount}<br>Stations ${stationCount}</p>
+    <p>Spatial nodes ${spatialNodeCount}<br>Resource nodes ${nodeCount}<br>Bubbles ${bubbleCount}</p>
+    <p>Claims ${claimCount}<br>Construction sites ${constructionCount}</p>
+    <p>Height ${system.galaxyPosition.y.toFixed(0)}</p>
+    <p>${system.planets.slice(0, 8).map((planet) => `${planet.label} (${planet.planetType})`).join("<br>")}</p>
+    ${followText}
+  `;
+}