feat(trading): include fees in transfer amount (#3345)

libs/accounts/src/lib/transfer-form.spec.tsx

@@ -1,4 +1,10 @@
-import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import {
+  act,
+  fireEvent,
+  render,
+  screen,
+  waitFor,
+} from '@testing-library/react';
 import BigNumber from 'bignumber.js';
 import { AddressField, TransferFee, TransferForm } from './transfer-form';
 import { AccountType } from '@vegaprotocol/types';
@@ -27,6 +33,34 @@ describe('TransferForm', () => {
     submitTransfer: jest.fn(),
   };
 
+  it('validates a manually entered address', async () => {
+    render(<TransferForm {...props} />);
+    submit();
+    expect(await screen.findAllByText('Required')).toHaveLength(3);
+    const toggle = screen.getByText('Enter manually');
+    fireEvent.click(toggle);
+    // has switched to input
+    expect(toggle).toHaveTextContent('Select from wallet');
+    expect(screen.getByLabelText('Vega key')).toHaveAttribute('type', 'text');
+    fireEvent.change(screen.getByLabelText('Vega key'), {
+      target: { value: 'invalid-address' },
+    });
+    await waitFor(() => {
+      const errors = screen.getAllByTestId('input-error-text');
+      expect(errors[0]).toHaveTextContent('Invalid Vega key');
+    });
+
+    // same pubkey
+    fireEvent.change(screen.getByLabelText('Vega key'), {
+      target: { value: pubKey },
+    });
+
+    await waitFor(() => {
+      const errors = screen.getAllByTestId('input-error-text');
+      expect(errors[0]).toHaveTextContent('Vega key is the same');
+    });
+  });
+
   it('validates fields and submits', async () => {
     render(<TransferForm {...props} />);
 
@@ -62,15 +96,17 @@ describe('TransferForm', () => {
       formatNumber(asset.balance, asset.decimals)
     );
 
+    const amountInput = screen.getByLabelText('Amount');
+
     // Test amount validation
-    fireEvent.change(screen.getByLabelText('Amount'), {
+    fireEvent.change(amountInput, {
       target: { value: '0.00000001' },
     });
     expect(
       await screen.findByText('Value is below minimum')
     ).toBeInTheDocument();
 
-    fireEvent.change(screen.getByLabelText('Amount'), {
+    fireEvent.change(amountInput, {
       target: { value: '9999999' },
     });
     expect(
@@ -78,7 +114,7 @@ describe('TransferForm', () => {
     ).toBeInTheDocument();
 
     // set valid amount
-    fireEvent.change(screen.getByLabelText('Amount'), {
+    fireEvent.change(amountInput, {
       target: { value: amount },
     });
     expect(screen.getByTestId('transfer-fee')).toHaveTextContent(
@@ -100,35 +136,139 @@ describe('TransferForm', () => {
     });
   });
 
-  it('validates a manually entered address', async () => {
+  describe('IncludeFeesCheckbox', () => {
+    it('validates fields and submits when checkbox is checked', async () => {
       render(<TransferForm {...props} />);
+
+      // check current pubkey not shown
+      const keySelect: HTMLSelectElement = screen.getByLabelText('Vega key');
+      expect(keySelect.children).toHaveLength(2);
+      expect(Array.from(keySelect.options).map((o) => o.value)).toEqual([
+        '',
+        props.pubKeys[1],
+      ]);
+
       submit();
       expect(await screen.findAllByText('Required')).toHaveLength(3);
-    const toggle = screen.getByText('Enter manually');
+
-    fireEvent.click(toggle);
+      // Select a pubkey
-    // has switched to input
-    expect(toggle).toHaveTextContent('Select from wallet');
-    expect(screen.getByLabelText('Vega key')).toHaveAttribute('type', 'text');
       fireEvent.change(screen.getByLabelText('Vega key'), {
-      target: { value: 'invalid-address' },
+        target: { value: props.pubKeys[1] },
-    });
-    await waitFor(() => {
-      const errors = screen.getAllByTestId('input-error-text');
-      expect(errors[0]).toHaveTextContent('Invalid Vega key');
       });
 
-    // same pubkey
+      // Select asset
-    fireEvent.change(screen.getByLabelText('Vega key'), {
+      fireEvent.change(
-      target: { value: pubKey },
+        // Bypass RichSelect and target hidden native select
+        // eslint-disable-next-line
+        document.querySelector('select[name="asset"]')!,
+        { target: { value: asset.id } }
+      );
+
+      // assert rich select as updated
+      expect(await screen.findByTestId('select-asset')).toHaveTextContent(
+        asset.name
+      );
+      expect(screen.getByTestId('asset-balance')).toHaveTextContent(
+        formatNumber(asset.balance, asset.decimals)
+      );
+
+      const amountInput = screen.getByLabelText('Amount');
+      const checkbox = screen.getByTestId('include-transfer-fee');
+      expect(checkbox).not.toBeChecked();
+      act(() => {
+        /* fire events that update state */
+        // set valid amount
+        fireEvent.change(amountInput, {
+          target: { value: amount },
+        });
+        // check include fees checkbox
+        fireEvent.click(checkbox);
       });
 
+      expect(checkbox).toBeChecked();
+      const expectedFee = new BigNumber(amount)
+        .times(props.feeFactor)
+        .toFixed();
+      const expectedAmount = new BigNumber(amount).minus(expectedFee).toFixed();
+      expect(screen.getByTestId('transfer-fee')).toHaveTextContent(expectedFee);
+      expect(screen.getByTestId('transfer-amount')).toHaveTextContent(
+        expectedAmount
+      );
+      expect(screen.getByTestId('total-transfer-fee')).toHaveTextContent(
+        amount
+      );
+
+      submit();
+
       await waitFor(() => {
-      const errors = screen.getAllByTestId('input-error-text');
+        expect(props.submitTransfer).toHaveBeenCalledTimes(1);
-      expect(errors[0]).toHaveTextContent('Vega key is the same');
+        expect(props.submitTransfer).toHaveBeenCalledWith({
+          fromAccountType: AccountType.ACCOUNT_TYPE_GENERAL,
+          toAccountType: AccountType.ACCOUNT_TYPE_GENERAL,
+          to: props.pubKeys[1],
+          asset: asset.id,
+          amount: removeDecimal(amount, asset.decimals),
+          oneOff: {},
         });
       });
     });
 
+    it('validates fields when checkbox is not checked', async () => {
+      render(<TransferForm {...props} />);
+
+      // check current pubkey not shown
+      const keySelect: HTMLSelectElement = screen.getByLabelText('Vega key');
+      expect(keySelect.children).toHaveLength(2);
+      expect(Array.from(keySelect.options).map((o) => o.value)).toEqual([
+        '',
+        props.pubKeys[1],
+      ]);
+
+      submit();
+      expect(await screen.findAllByText('Required')).toHaveLength(3);
+
+      // Select a pubkey
+      fireEvent.change(screen.getByLabelText('Vega key'), {
+        target: { value: props.pubKeys[1] },
+      });
+
+      // Select asset
+      fireEvent.change(
+        // Bypass RichSelect and target hidden native select
+        // eslint-disable-next-line
+        document.querySelector('select[name="asset"]')!,
+        { target: { value: asset.id } }
+      );
+
+      // assert rich select as updated
+      expect(await screen.findByTestId('select-asset')).toHaveTextContent(
+        asset.name
+      );
+      expect(screen.getByTestId('asset-balance')).toHaveTextContent(
+        formatNumber(asset.balance, asset.decimals)
+      );
+
+      const amountInput = screen.getByLabelText('Amount');
+      const checkbox = screen.getByTestId('include-transfer-fee');
+      expect(checkbox).not.toBeChecked();
+      act(() => {
+        /* fire events that update state */
+        // set valid amount
+        fireEvent.change(amountInput, {
+          target: { value: amount },
+        });
+      });
+      expect(checkbox).not.toBeChecked();
+      const expectedFee = new BigNumber(amount)
+        .times(props.feeFactor)
+        .toFixed();
+      const total = new BigNumber(amount).plus(expectedFee).toFixed();
+      expect(screen.getByTestId('transfer-fee')).toHaveTextContent(expectedFee);
+      expect(screen.getByTestId('transfer-amount')).toHaveTextContent(amount);
+      expect(screen.getByTestId('total-transfer-fee')).toHaveTextContent(total);
+    });
+  });
+
   describe('AddressField', () => {
     const props = {
       pubKeys: ['pubkey-1', 'pubkey-2'],
@@ -165,6 +305,9 @@ describe('TransferFee', () => {
     const props = {
       amount: '200',
       feeFactor: '0.001',
+      fee: '0.2',
+      transferAmount: '200',
+      decimals: 8,
     };
     it('calculates and renders the transfer fee', () => {
       render(<TransferFee {...props} />);
@@ -172,6 +315,12 @@ describe('TransferFee', () => {
       const expected = new BigNumber(props.amount)
         .times(props.feeFactor)
         .toFixed();
+      const total = new BigNumber(props.amount).plus(expected).toFixed();
       expect(screen.getByTestId('transfer-fee')).toHaveTextContent(expected);
+      expect(screen.getByTestId('transfer-amount')).toHaveTextContent(
+        props.amount
+      );
+      expect(screen.getByTestId('total-transfer-fee')).toHaveTextContent(total);
+    });
   });
 });

libs/accounts/src/lib/transfer-form.tsx

@@ -16,6 +16,7 @@ import {
   RichSelect,
   Select,
   Tooltip,
+  Checkbox,
 } from '@vegaprotocol/ui-toolkit';
 import type { Transfer } from '@vegaprotocol/wallet';
 import { normalizeTransfer } from '@vegaprotocol/wallet';
@@ -63,6 +64,26 @@ export const TransferForm = ({
   const amount = watch('amount');
   const assetId = watch('asset');
 
+  const [includeFee, setIncludeFee] = useState(false);
+
+  const transferAmount = useMemo(() => {
+    if (!amount) return undefined;
+    if (includeFee && feeFactor) {
+      return new BigNumber(1).minus(feeFactor).times(amount).toString();
+    }
+    return amount;
+  }, [amount, includeFee, feeFactor]);
+
+  const fee = useMemo(() => {
+    if (!transferAmount) return undefined;
+    if (includeFee) {
+      return new BigNumber(amount).minus(transferAmount).toString();
+    }
+    return (
+      feeFactor && new BigNumber(feeFactor).times(transferAmount).toString()
+    );
+  }, [amount, includeFee, transferAmount, feeFactor]);
+
   const asset = useMemo(() => {
     return assets.find((a) => a.id === assetId);
   }, [assets, assetId]);
@@ -72,13 +93,16 @@ export const TransferForm = ({
       if (!asset) {
         throw new Error('Submitted transfer with no asset selected');
       }
-      const transfer = normalizeTransfer(fields.toAddress, fields.amount, {
+      if (!transferAmount) {
+        throw new Error('Submitted transfer with no amount selected');
+      }
+      const transfer = normalizeTransfer(fields.toAddress, transferAmount, {
         id: asset.id,
         decimals: asset.decimals,
       });
       submitTransfer(transfer);
     },
-    [asset, submitTransfer]
+    [asset, submitTransfer, transferAmount]
   );
 
   const min = useMemo(() => {
@@ -213,7 +237,32 @@ export const TransferForm = ({
           <InputError forInput="amount">{errors.amount.message}</InputError>
         )}
       </FormGroup>
-      <TransferFee amount={amount} feeFactor={feeFactor} />
+      <div className="mb-4">
+        <Checkbox
+          name="include-transfer-fee"
+          disabled={!transferAmount}
+          label={
+            <Tooltip
+              description={t(
+                `The fee will be taken from the amount you are transferring.`
+              )}
+            >
+              <div>{t('Include transfer fee')}</div>
+            </Tooltip>
+          }
+          checked={includeFee}
+          onCheckedChange={() => setIncludeFee(!includeFee)}
+        />
+      </div>
+      {transferAmount && fee && (
+        <TransferFee
+          amount={transferAmount}
+          transferAmount={transferAmount}
+          feeFactor={feeFactor}
+          fee={fee}
+          decimals={asset?.decimals}
+        />
+      )}
       <Button type="submit" variant="primary" fill={true}>
         {t('Confirm transfer')}
       </Button>
@@ -223,34 +272,71 @@ export const TransferForm = ({
 
 export const TransferFee = ({
   amount,
+  transferAmount,
   feeFactor,
+  fee,
+  decimals,
 }: {
   amount: string;
+  transferAmount: string;
   feeFactor: string | null;
+  fee?: string;
+  decimals?: number;
 }) => {
-  if (!feeFactor || !amount) return null;
+  if (!feeFactor || !amount || !transferAmount || !fee) return null;
 
-  // using toFixed without an argument will always return a
+  const totalValue = new BigNumber(transferAmount).plus(fee).toString();
-  // number in normal notation without rounding, formatting functions
-  // arent working in a way which won't round the decimal places
-  const value = new BigNumber(amount).times(feeFactor).toFixed();
 
   return (
-    <div className="mb-4 flex justify-between items-center gap-4 flex-wrap">
+    <div className="mb-4 flex flex-col gap-2 text-xs">
-      <div>
+      <div className="flex justify-between gap-1 items-center flex-wrap">
         <Tooltip
           description={t(
-            `The transfer fee is set by the network parameter transfer.fee.factor, currently set to ${feeFactor}`
+            `The transfer fee is set by the network parameter transfer.fee.factor, currently set to %s`,
+            [feeFactor]
           )}
         >
           <div>{t('Transfer fee')}</div>
         </Tooltip>
-      </div>
+
         <div
           data-testid="transfer-fee"
           className="text-neutral-500 dark:text-neutral-300"
         >
-        {value}
+          {formatNumber(fee, decimals)}
+        </div>
+      </div>
+      <div className="flex justify-between gap-1 items-center flex-wrap">
+        <Tooltip
+          description={t(
+            `The total amount to be transferred (without the fee)`
+          )}
+        >
+          <div>{t('Amount to be transferred')}</div>
+        </Tooltip>
+
+        <div
+          data-testid="transfer-amount"
+          className="text-neutral-500 dark:text-neutral-300"
+        >
+          {formatNumber(amount, decimals)}
+        </div>
+      </div>
+      <div className="flex justify-between gap-1 items-center flex-wrap">
+        <Tooltip
+          description={t(
+            `The total amount taken from your account. The amount to be transferred plus the fee.`
+          )}
+        >
+          <div>{t('Total amount (with fee)')}</div>
+        </Tooltip>
+
+        <div
+          data-testid="total-transfer-fee"
+          className="text-neutral-500 dark:text-neutral-300"
+        >
+          {formatNumber(totalValue, decimals)}
+        </div>
       </div>
     </div>
   );

libs/accounts/src/setup-tests.ts

@@ -1 +1,6 @@
 import '@testing-library/jest-dom';
+import ResizeObserver from 'resize-observer-polyfill';
+import { defaultFallbackInView } from 'react-intersection-observer';
+
+defaultFallbackInView(true);
+global.ResizeObserver = ResizeObserver;