Merge pull request paraswap#169 from paraswap/feat/optimism-fees-est

Feat/optimism fees est
keccak384 · Aug 18, 2022 · b1e29fc · b1e29fc
2 parents b37c184 + 4ccf0f7
commit b1e29fc
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Showing 3 changed files with 15 additions and 5 deletions.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@paraswap/dex-lib",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "main": "build/index.js",
   "types": "build/index.d.ts",
   "repository": "https://github.com/paraswap/paraswap-dex-lib",

diff --git a/src/dex/paraswap-limit-orders/paraswap-limit-orders.ts b/src/dex/paraswap-limit-orders/paraswap-limit-orders.ts
@@ -137,7 +137,11 @@ export class ParaSwapLimitOrders
         prices: [unit],
       } = this._getPrices([unitVolume], orderBook, isSell);
 
-      const { prices, gasCosts } = this._getPrices(amounts, orderBook, isSell);
+      const { prices, gasCosts, maxOrdersCount } = this._getPrices(
+        amounts,
+        orderBook,
+        isSell,
+      );
 
       if (unit === 0n) {
         // If we didn't fulfill unit amount, scale up latest amount till unit
@@ -148,7 +152,10 @@ export class ParaSwapLimitOrders
         {
           unit,
           prices,
-          data: { orderInfos: null },
+          data: {
+            orderInfos: null,
+            maxOrdersCount,
+          },
           poolIdentifier: expectedIdentifier,
           exchange: this.dexKey,
           gasCost: gasCosts.map(v => Number(v)),
@@ -409,9 +416,10 @@ export class ParaSwapLimitOrders
     amounts: bigint[],
     orderBook: ParaSwapOrderBook[],
     isSell: boolean,
-  ): { prices: bigint[]; gasCosts: bigint[] } {
+  ): { prices: bigint[]; gasCosts: bigint[]; maxOrdersCount: number } {
     const prices = new Array<bigint>(amounts.length).fill(0n);
     const gasCosts = new Array<bigint>(amounts.length).fill(0n);
+    let maxOrdersCount = 0;
 
     const calcOutFunc = isSell
       ? this._calcMakerFromTakerAmount
@@ -488,13 +496,14 @@ export class ParaSwapLimitOrders
         } else if (toFill === 0n) {
           prices[i] = filled;
           gasCosts[i] = numberOfOrders * ONE_ORDER_GASCOST;
+          maxOrdersCount = Math.max(maxOrdersCount, +numberOfOrders.toString());
         } else {
           prices[i] = 0n;
           gasCosts[i] = 0n;
         }
       }
     }
-    return { prices, gasCosts };
+    return { prices, gasCosts, maxOrdersCount };
   }
 
   private _calcTakerFromMakerAmount(

diff --git a/src/dex/paraswap-limit-orders/types.ts b/src/dex/paraswap-limit-orders/types.ts
@@ -41,6 +41,7 @@ export type ParaSwapOrderBook = {
 
 export type ParaSwapLimitOrdersData = {
   orderInfos: OrderInfo[] | null;
+  maxOrdersCount?: number;
 };
 
 export type DexParams = {