fix(Map): Add ability to copy and past systems (UI part)

assets/js/hooks/Mapper/helpers/index.ts

@@ -3,3 +3,4 @@ export * from './parseSignatures';
 export * from './getSystemById';
 export * from './getEveImageUrl';
 export * from './toastHelpers';
+export * from './recenterSystems';

assets/js/hooks/Mapper/helpers/recenterSystems.ts

@@ -0,0 +1,39 @@
+import { XYPosition } from 'reactflow';
+
+export type WithPosition<T = unknown> = T & { position: XYPosition };
+
+export const computeBoundsCenter = (items: Array<WithPosition>): XYPosition => {
+  if (items.length === 0) return { x: 0, y: 0 };
+
+  let minX = Infinity;
+  let maxX = -Infinity;
+  let minY = Infinity;
+  let maxY = -Infinity;
+
+  for (const { position } of items) {
+    if (position.x < minX) minX = position.x;
+    if (position.x > maxX) maxX = position.x;
+    if (position.y < minY) minY = position.y;
+    if (position.y > maxY) maxY = position.y;
+  }
+
+  return {
+    x: minX + (maxX - minX) / 2,
+    y: minY + (maxY - minY) / 2,
+  };
+};
+
+/** Смещает все точки так, чтобы центр области стал (0,0) */
+export const recenterSystemsByBounds = <T extends WithPosition>(items: T[]): { center: XYPosition; systems: T[] } => {
+  const center = computeBoundsCenter(items);
+
+  const systems = items.map(it => ({
+    ...it,
+    position: {
+      x: it.position.x - center.x,
+      y: it.position.y - center.y,
+    },
+  }));
+
+  return { center, systems };
+};