[Simulator] quick fix - send opposite budget to the result

src/pages/simulator/overlapping/index.tsx

@@ -1,4 +1,8 @@
-import { calculateOverlappingPrices } from '@bancor/carbon-sdk/strategy-management';
+import {
+  calculateOverlappingBuyBudget,
+  calculateOverlappingPrices,
+  calculateOverlappingSellBudget,
+} from '@bancor/carbon-sdk/strategy-management';
 import { useNavigate } from '@tanstack/react-router';
 import { Button } from 'components/common/button';
 import { CreateOverlappingStrategy } from 'components/simulator/input/overlapping/CreateOverlappingStrategy';
@@ -64,37 +68,60 @@ export const SimulatorInputOverlappingPage = () => {
   const submit = (e: FormEvent<HTMLFormElement>) => {
     e.preventDefault();
     if (isPending || isError || noBudget) return;
+    if (!state.baseToken || !state.quoteToken) return;
     const start = state.start ?? defaultStart();
     const end = state.end ?? defaultEnd();
 
+    const search = {
+      baseToken: state.baseToken.address,
+      quoteToken: state.quoteToken.address,
+      buyMin: roundSearchParam(state.buy.min),
+      buyMax: roundSearchParam(state.buy.max),
+      buyBudget: roundSearchParam(state.buy.budget),
+      buyMarginal: '',
+      buyIsRange: true,
+      sellMin: roundSearchParam(state.sell.min),
+      sellMax: roundSearchParam(state.sell.max),
+      sellBudget: roundSearchParam(state.sell.budget),
+      sellMarginal: '',
+      sellIsRange: true,
+      start: start.toString(),
+      end: end.toString(),
+      type: 'overlapping' as const,
+      spread: state.spread,
+    };
+
+    if (search.buyBudget) {
+      search.sellBudget = calculateOverlappingSellBudget(
+        state.baseToken.decimals,
+        state.quoteToken.decimals,
+        state.buy.min,
+        state.sell.max,
+        marketPrice!.toString(),
+        state.spread,
+        search.buyBudget
+      );
+    } else {
+      search.buyBudget = calculateOverlappingBuyBudget(
+        state.baseToken.decimals,
+        state.quoteToken.decimals,
+        state.buy.min,
+        state.sell.max,
+        marketPrice!.toString(),
+        state.spread,
+        search.sellBudget
+      );
+    }
+
     const { buyPriceMarginal, sellPriceMarginal } = calculateOverlappingPrices(
       formatNumber(state.buy.min),
       formatNumber(state.sell.max),
       marketPrice!.toString(),
       state.spread
     );
-
-    navigate({
-      to: '/simulate/result',
-      search: {
-        baseToken: state.baseToken?.address || '',
-        quoteToken: state.quoteToken?.address || '',
-        buyMin: roundSearchParam(state.buy.min),
-        buyMax: roundSearchParam(state.buy.max),
-        buyBudget: roundSearchParam(state.buy.budget),
-        buyMarginal: roundSearchParam(buyPriceMarginal),
-        buyIsRange: true,
-        sellMin: roundSearchParam(state.sell.min),
-        sellMax: roundSearchParam(state.sell.max),
-        sellBudget: roundSearchParam(state.sell.budget),
-        sellMarginal: roundSearchParam(sellPriceMarginal),
-        sellIsRange: true,
-        start: start.toString(),
-        end: end.toString(),
-        type: 'overlapping',
-        spread: state.spread,
-      },
-    });
+    search.buyMarginal = buyPriceMarginal;
+    search.sellMarginal = sellPriceMarginal;
+    navigate({ to: '/simulate/result', search });
   };
 
   return (