do not discard decimals of bitcoin virtual tx size

Author: piatoss3612

apps/extension/src/hooks/bitcoin/use-tx-configs-query-string.ts

@@ -39,7 +39,7 @@ export const useBitcoinTxConfigsQueryString = (configs: {
 
     const initialTxSize = searchParams.get("initialTxSize");
     if (initialTxSize) {
-      configs.txSizeConfig.setValue(Number.parseInt(initialTxSize));
+      configs.txSizeConfig.setValue(Number.parseFloat(initialTxSize));
     }
 
     const initialFeeRateType = searchParams.get("initialFeeRateType");

packages/hooks-bitcoin/src/tx/fee.ts

@@ -88,10 +88,15 @@ export class FeeConfig extends TxChainSetter implements IFeeConfig {
         return undefined;
       }
 
-      return new CoinPretty(
-        this.amountConfig.currency,
+      if (this.txSizeConfig.txSize <= 0) {
+        return new CoinPretty(this.amountConfig.currency, new Dec(0));
+      }
+
+      const feeDec = new Dec(
         this.txSizeConfig.txSize * this.feeRateConfig.feeRate + this.remainder
-      );
+      ).roundUpDec();
+
+      return new CoinPretty(this.amountConfig.currency, feeDec);
     }
 
     return new CoinPretty(this.amountConfig.currency, this._value);

packages/hooks-bitcoin/src/tx/psbt-simulator.ts

@@ -80,7 +80,7 @@ class PsbtSimulatorState {
   @action
   setInitialTxSize(value: number | string) {
     if (typeof value === "string") {
-      value = parseInt(value);
+      value = Number.parseFloat(value);
     }
 
     this._initialTxSize = value;

packages/hooks-bitcoin/src/tx/tx-size.ts

@@ -48,7 +48,7 @@ export class TxSizeConfig extends TxChainSetter implements ITxSizeConfig {
       return 0;
     }
 
-    const num = Number.parseInt(this._value);
+    const num = Number.parseFloat(this._value);
     if (Number.isNaN(num)) {
       if (this._disallowZeroTxSize) {
         return undefined;
@@ -67,7 +67,7 @@ export class TxSizeConfig extends TxChainSetter implements ITxSizeConfig {
       };
     }
 
-    const num = Number.parseInt(this._value);
+    const num = Number.parseFloat(this._value);
     if (Number.isNaN(num)) {
       return {
         error: new Error("Tx size is not valid number"),