Add Destination field to Invoke transaction.

Extend transactions Account UI.

components/Select.tsx

@@ -3,13 +3,11 @@ import { mauve, mauveDark, purple, purpleDark } from '@radix-ui/colors'
 import { useTheme } from 'next-themes'
 import { styled } from '../stitches.config'
 import dynamic from 'next/dynamic'
-import type { Props } from 'react-select'
+import type { Props, StylesConfig } from 'react-select'
 const SelectInput = dynamic(() => import('react-select'), { ssr: false })
+const CreatableSelectInput = dynamic(() => import('react-select/creatable'), { ssr: false })
 
-// eslint-disable-next-line react/display-name
-const Select = forwardRef<any, Props>((props, ref) => {
-  const { theme } = useTheme()
-  const isDark = theme === 'dark'
+const getColors = (isDark: boolean) => {
   const colors: any = {
     // primary: pink.pink9,
     active: isDark ? purpleDark.purple9 : purple.purple9,
@@ -30,11 +28,12 @@ const Select = forwardRef<any, Props>((props, ref) => {
   }
   colors.outline = colors.background
   colors.selected = colors.secondary
-  return (
-    <SelectInput
-      ref={ref}
-      menuPosition={props.menuPosition || 'fixed'}
-      styles={{
+  return colors
+}
+
+const getStyles = (isDark: boolean) => {
+  const colors = getColors(isDark)
+  const styles: StylesConfig = {
     container: provided => {
       return {
         ...provided,
@@ -108,16 +107,57 @@ const Select = forwardRef<any, Props>((props, ref) => {
     dropdownIndicator: (provided, state) => {
       return {
         ...provided,
+        padding: 6,
         color: state.isFocused ? colors.border : colors.secondary,
         ':hover': {
           color: colors.border
         }
       }
+    },
+    clearIndicator: provided => {
+      return {
+        ...provided,
+        padding: 6,
+        color: colors.secondary,
+        ':hover': {
+          color: colors.border
         }
-      }}
+      }
+    }
+  }
+  return styles
+}
+
+// eslint-disable-next-line react/display-name
+const Select = forwardRef<any, Props>((props, ref) => {
+  const { theme } = useTheme()
+  const isDark = theme === 'dark'
+  const styles = getStyles(isDark)
+  return (
+    <SelectInput
+      ref={ref}
+      menuPosition={props.menuPosition || 'fixed'}
+      styles={styles}
+      {...props}
+    />
+  )
+})
+
+// eslint-disable-next-line react/display-name
+const Creatable = forwardRef<any, Props>((props, ref) => {
+  const { theme } = useTheme()
+  const isDark = theme === 'dark'
+  const styles = getStyles(isDark)
+  return (
+    <CreatableSelectInput
+      ref={ref}
+      formatCreateLabel={label => `Enter "${label}"`}
+      menuPosition={props.menuPosition || 'fixed'}
+      styles={styles}
       {...props}
     />
   )
 })
 
 export default styled(Select, {})
+export const CreatableSelect = styled(Creatable, {})

components/Sequence.tsx

@@ -38,7 +38,7 @@ const AccountSequence: FC<AccountSequenceProps> = ({ address }) => {
     <Flex row align="center" fluid>
       <Input
         placeholder="Account sequence"
-        value={account?.sequence}
+        value={account?.sequence || ""}
         disabled={!account}
         type="number"
         readOnly={true}

components/Transaction/index.tsx

@@ -43,7 +43,6 @@ const Transaction: FC<TransactionProps> = ({ header, state: txState, ...props })
     (state: Partial<TransactionState> = txState) => {
       const {
         selectedTransaction,
-        selectedDestAccount,
         selectedAccount,
         txFields,
         selectedFlags,
@@ -52,7 +51,6 @@ const Transaction: FC<TransactionProps> = ({ header, state: txState, ...props })
       } = state
 
       const TransactionType = selectedTransaction?.value || null
-      const Destination = selectedDestAccount?.value || txFields?.Destination
       const Account = selectedAccount?.value || null
       const Flags = combineFlags(selectedFlags?.map(flag => flag.value)) || txFields?.Flags
       const HookParameters = Object.entries(hookParameters || {}).reduce<
@@ -75,7 +73,6 @@ const Transaction: FC<TransactionProps> = ({ header, state: txState, ...props })
         HookParameters,
         Flags,
         TransactionType,
-        Destination,
         Account,
         Memos
       })
@@ -128,11 +125,12 @@ const Transaction: FC<TransactionProps> = ({ header, state: txState, ...props })
         throw Error('Account must be selected from imported accounts!')
       }
       const options = prepareOptions(st)
-
-      const fields = getTxFields(options.TransactionType)
-      if (fields.Destination && !options.Destination) {
-        throw Error('Destination account is required!')
+      // delete unnecessary fields
+      Object.keys(options).forEach(field => {
+        if (!options[field]) {
+          delete options[field]
         }
+      })
 
       await sendTransaction(account, options, { logPrefix })
     } catch (error) {
@@ -167,13 +165,6 @@ const Transaction: FC<TransactionProps> = ({ header, state: txState, ...props })
         selectedTransaction: transactionType
       }
 
-      if (fields.Destination !== undefined) {
-        nwState.selectedDestAccount = null
-        fields.Destination = ''
-      } else {
-        fields.Destination = undefined
-      }
-
       if (transactionType?.value && transactionFlags[transactionType?.value] && fields.Flags) {
         nwState.selectedFlags = extractFlags(transactionType.value, fields.Flags)
         fields.Flags = undefined

components/Transaction/ui.tsx

@@ -1,25 +1,25 @@
-import { FC, ReactNode, useCallback, useEffect, useMemo, useState } from 'react'
+import { FC, ReactNode, useCallback, useEffect, useState } from 'react'
 import Container from '../Container'
 import Flex from '../Flex'
 import Input from '../Input'
-import Select from '../Select'
+import Select, { CreatableSelect } from '../Select'
 import Text from '../Text'
 import {
   SelectOption,
   TransactionState,
   transactionsOptions,
   TxFields,
-  getTxFields,
   defaultTransactionType
 } from '../../state/transactions'
 import { useSnapshot } from 'valtio'
 import state from '../../state'
 import { streamState } from '../DebugStream'
-import { Button } from '..'
+import { Box, Button } from '..'
 import Textarea from '../Textarea'
 import { getFlags } from '../../state/constants/flags'
 import { Plus, Trash } from 'phosphor-react'
 import AccountSequence from '../Sequence'
+import { capitalize, typeIs } from '../../utils/helpers'
 
 interface UIProps {
   setState: (pTx?: Partial<TransactionState> | undefined) => TransactionState | undefined
@@ -37,28 +37,14 @@ export const TxUI: FC<UIProps> = ({
   switchToJson
 }) => {
   const { accounts } = useSnapshot(state)
-  const {
-    selectedAccount,
-    selectedDestAccount,
-    selectedTransaction,
-    txFields,
-    selectedFlags,
-    hookParameters,
-    memos
-  } = txState
+  const { selectedAccount, selectedTransaction, txFields, selectedFlags, hookParameters, memos } =
+    txState
 
   const accountOptions: SelectOption[] = accounts.map(acc => ({
     label: acc.name,
     value: acc.address
   }))
 
-  const destAccountOptions: SelectOption[] = accounts
-    .map(acc => ({
-      label: acc.name,
-      value: acc.address
-    }))
-    .filter(acc => acc.value !== selectedAccount?.value)
-
   const flagsOptions: SelectOption[] = Object.entries(
     getFlags(selectedTransaction?.value) || {}
   ).map(([label, value]) => ({
@@ -87,6 +73,22 @@ export const TxUI: FC<UIProps> = ({
     [setState, txFields]
   )
 
+  const setRawField = useCallback(
+    (field: keyof TxFields, type: string, value: any) => {
+      // TODO $type should be a narrowed type
+      setState({
+        txFields: {
+          ...txFields,
+          [field]: {
+            $type: type,
+            $value: value
+          }
+        }
+      })
+    },
+    [setState, txFields]
+  )
+
   const handleEstimateFee = useCallback(
     async (state?: TransactionState, silent?: boolean) => {
       setFeeLoading(true)
@@ -119,21 +121,23 @@ export const TxUI: FC<UIProps> = ({
     }
   }, [handleChangeTxType, selectedTransaction?.value])
 
-  const fields = useMemo(
-    () => getTxFields(selectedTransaction?.value),
-    [selectedTransaction?.value]
-  )
-
   const richFields = ['TransactionType', 'Account', 'HookParameters', 'Memos']
-  if (fields.Destination !== undefined) {
-    richFields.push('Destination')
-  }
 
   if (flagsOptions.length) {
     richFields.push('Flags')
   }
 
   const otherFields = Object.keys(txFields).filter(k => !richFields.includes(k)) as [keyof TxFields]
+  const amountOptions = [
+    { label: 'XRP', value: 'xrp' },
+    { label: 'Token', value: 'token' }
+  ] as const
+
+  const defaultTokenAmount = {
+    value: '0',
+    currency: '',
+    issuer: ''
+  }
   return (
     <Container
       css={{
@@ -165,18 +169,6 @@ export const TxUI: FC<UIProps> = ({
         <TxField label="Sequence">
           <AccountSequence address={selectedAccount?.value} />
         </TxField>
-        {richFields.includes('Destination') && (
-          <TxField label="Destination account">
-            <Select
-              instanceId="to-account"
-              placeholder="Select the destination account"
-              options={destAccountOptions}
-              value={selectedDestAccount}
-              isClearable
-              onChange={(acc: any) => setState({ selectedDestAccount: acc })}
-            />
-          </TxField>
-        )}
         {richFields.includes('Flags') && (
           <TxField label="Flags">
             <Select
@@ -198,23 +190,133 @@ export const TxUI: FC<UIProps> = ({
           let _value = txFields[field]
 
           let value: string | undefined
-          if (typeof _value === 'object') {
-            if (_value.$type === 'json' && typeof _value.$value === 'object') {
+          if (typeIs(_value, 'object')) {
+            if (_value.$type === 'json' && typeIs(_value.$value, ['object', 'array'])) {
               value = JSON.stringify(_value.$value, null, 2)
             } else {
-              value = _value.$value.toString()
+              value = _value.$value?.toString()
             }
           } else {
             value = _value?.toString()
           }
 
-          const isXrp = typeof _value === 'object' && _value.$type === 'xrp'
+          const isAccount = typeIs(_value, 'object') && _value.$type === 'account'
+          const isXrpAmount = typeIs(_value, 'object') && _value.$type === 'amount.xrp'
+          const isTokenAmount = typeIs(_value, 'object') && _value.$type === 'amount.token'
           const isJson = typeof _value === 'object' && _value.$type === 'json'
           const isFee = field === 'Fee'
           let rows = isJson ? (value?.match(/\n/gm)?.length || 0) + 1 : undefined
           if (rows && rows > 5) rows = 5
+          let tokenAmount = defaultTokenAmount
+          if (isTokenAmount && typeIs(_value, 'object') && typeIs(_value.$value, 'object')) {
+            tokenAmount = {
+              value: _value.$value.value,
+              currency: _value.$value.currency,
+              issuer: _value.$value.issuer
+            }
+          }
+
+          if (isXrpAmount || isTokenAmount) {
             return (
-            <TxField key={field} label={field + (isXrp ? ' (XRP)' : '')}>
+              <TxField key={field} label={field}>
+                <Flex fluid css={{ alignItems: 'center' }}>
+                  {isTokenAmount ? (
+                    <Flex
+                      fluid
+                      row
+                      align="center"
+                      justify="space-between"
+                      css={{ position: 'relative' }}
+                    >
+                      {/*  <Input
+                        type="text"
+                        placeholder="Issuer"
+                        value={tokenAmount.issuer}
+                        onChange={e =>
+                          setRawField(field, 'amount.token', {
+                            ...tokenAmount,
+                            issuer: e.target.value
+                          })
+                        }
+                      /> */}
+                      <Input
+                        type="text"
+                        value={tokenAmount.currency}
+                        placeholder="Currency"
+                        onChange={e => {
+                          setRawField(field, 'amount.token', {
+                            ...tokenAmount,
+                            currency: e.target.value
+                          })
+                        }}
+                      />
+                      <Input
+                        css={{ mx: '$1' }}
+                        type="number"
+                        value={tokenAmount.value}
+                        placeholder="Value"
+                        onChange={e => {
+                          setRawField(field, 'amount.token', {
+                            ...tokenAmount,
+                            value: e.target.value
+                          })
+                        }}
+                      />
+                      <Box css={{ width: '50%' }}>
+                        <CreatableAccount
+                          value={tokenAmount.issuer}
+                          field={'Issuer' as any}
+                          placeholder="Issuer"
+                          setField={(_, value = '') => {
+                            setRawField(field, 'amount.token', {
+                              ...tokenAmount,
+                              issuer: value
+                            })
+                          }}
+                        />
+                      </Box>
+                    </Flex>
+                  ) : (
+                    <Input
+                      css={{ flex: 'inherit' }}
+                      type="number"
+                      value={value}
+                      onChange={e => handleSetField(field, e.target.value)}
+                    />
+                  )}
+                  <Box
+                    css={{
+                      ml: '$2',
+                      width: '150px'
+                    }}
+                  >
+                    <Select
+                      instanceId="currency-type"
+                      options={amountOptions}
+                      value={isXrpAmount ? amountOptions['0'] : amountOptions['1']}
+                      onChange={(e: any) => {
+                        const opt = e as typeof amountOptions[number]
+                        if (opt.value === 'xrp') {
+                          setRawField(field, 'amount.xrp', '0')
+                        } else {
+                          setRawField(field, 'amount.token', defaultTokenAmount)
+                        }
+                      }}
+                    />
+                  </Box>
+                </Flex>
+              </TxField>
+            )
+          }
+          if (isAccount) {
+            return (
+              <TxField key={field} label={field}>
+                <CreatableAccount value={value} field={field} setField={handleSetField} />
+              </TxField>
+            )
+          }
+          return (
+            <TxField key={field} label={field}>
               {isJson ? (
                 <Textarea
                   rows={rows}
@@ -425,6 +527,35 @@ export const TxUI: FC<UIProps> = ({
   )
 }
 
+export const CreatableAccount: FC<{
+  value: string | undefined
+  field: keyof TxFields
+  placeholder?: string
+  setField: (field: keyof TxFields, value: string, opFields?: TxFields) => void
+}> = ({ value, field, setField, placeholder }) => {
+  const { accounts } = useSnapshot(state)
+  const accountOptions: SelectOption[] = accounts.map(acc => ({
+    label: acc.name,
+    value: acc.address
+  }))
+  const label = accountOptions.find(a => a.value === value)?.label || value
+  const val = {
+    value,
+    label
+  }
+  placeholder = placeholder || `${capitalize(field)} account`
+  return (
+    <CreatableSelect
+      isClearable
+      instanceId={field}
+      placeholder={placeholder}
+      options={accountOptions}
+      value={value ? val : undefined}
+      onChange={(acc: any) => setField(field, acc?.value)}
+    />
+  )
+}
+
 export const TxField: FC<{ label: string; children: ReactNode; multiLine?: boolean }> = ({
   label,
   children,
@@ -438,7 +569,7 @@ export const TxField: FC<{ label: string; children: ReactNode; multiLine?: boole
         justifyContent: 'flex-end',
         alignItems: multiLine ? 'flex-start' : 'center',
         position: 'relative',
-        mb: '$3',
+        mb: '$2',
         mt: '1px',
         pr: '1px'
       }}

content/transactions.json

@@ -2,7 +2,10 @@
   {
     "TransactionType": "AccountDelete",
     "Account": "rWYkbWkCeg8dP6rXALnjgZSjjLyih5NXm",
-    "Destination": "rPT1Sjq2YGrBMTttX4GZHjKu9dyfzbpAYe",
+    "Destination": {
+      "$type": "account",
+      "$value": ""
+    },
     "DestinationTag": 13,
     "Fee": "2000000",
     "Sequence": 2470665,
@@ -28,7 +31,11 @@
     "TransactionType": "CheckCash",
     "Amount": {
       "$value": "100",
-      "$type": "xrp"
+      "$type": "amount.xrp"
+    },
+    "DeliverMin": {
+      "$value": "",
+      "$type": "amount.xrp"
     },
     "CheckID": "838766BA2B995C00744175F69A1B11E32C3DBC40E64801A4056FCBD657F57334",
     "Fee": "12"
@@ -36,7 +43,10 @@
   {
     "TransactionType": "CheckCreate",
     "Account": "rUn84CUYbNjRoTQ6mSW7BVJPSVJNLb1QLo",
-    "Destination": "rfkE1aSy9G8Upk4JssnwBxhEv5p4mn2KTy",
+    "Destination": {
+      "$type": "account",
+      "$value": ""
+    },
     "SendMax": "100000000",
     "Expiration": 570113521,
     "InvoiceID": "6F1DFD1D0FE8A32E40E1F2C05CF1C15545BAB56B617F9C6C2D63A6B704BEF59B",
@@ -54,7 +64,10 @@
   {
     "Account": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
     "TransactionType": "EscrowCancel",
-    "Owner": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+    "Owner": {
+      "$type": "account",
+      "$value": ""
+    },
     "OfferSequence": 7,
     "Fee": "10"
   },
@@ -63,9 +76,12 @@
     "TransactionType": "EscrowCreate",
     "Amount": {
       "$value": "100",
-      "$type": "xrp"
+      "$type": "amount.xrp"
+    },
+    "Destination": {
+      "$type": "account",
+      "$value": ""
     },
-    "Destination": "rsA2LpzuawewSBQXkiju3YQTMzW13pAAdW",
     "CancelAfter": 533257958,
     "FinishAfter": 533171558,
     "Condition": "A0258020E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855810100",
@@ -76,7 +92,10 @@
   {
     "Account": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
     "TransactionType": "EscrowFinish",
-    "Owner": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
+    "Owner": {
+      "$type": "account",
+      "$value": ""
+    },
     "OfferSequence": 7,
     "Condition": "A0258020E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855810100",
     "Fulfillment": "A0028000",
@@ -120,10 +139,17 @@
     "NFTokenID": "000100001E962F495F07A990F4ED55ACCFEEF365DBAA76B6A048C0A200000007",
     "Amount": {
       "$value": "100",
-      "$type": "xrp"
+      "$type": "amount.xrp"
     },
     "Flags": "1",
-    "Destination": "",
+    "Destination": {
+      "$type": "account",
+      "$value": ""
+    },
+    "Owner": {
+      "$type": "account",
+      "$value": ""
+    },
     "Fee": "10"
   },
   {
@@ -142,19 +168,29 @@
     "Flags": "0",
     "LastLedgerSequence": 7108682,
     "Sequence": 8,
-    "TakerGets": "6000000",
-    "Amount": {
-      "$value": "100",
-      "$type": "xrp"
+    "TakerGets": {
+      "$type": "amount.xrp",
+      "$value": "6000000"
+    },
+    "TakerPays": {
+      "$type": "amount.token",
+      "$value": {
+        "currency": "GKO",
+        "issuer": "ruazs5h1qEsqpke88pcqnaseXdm6od2xc",
+        "value": "2"
+      }
     }
   },
   {
     "TransactionType": "Payment",
     "Account": "rf1BiGeXwwQoi8Z2ueFYTEXSwuJYfV2Jpn",
-    "Destination": "ra5nK24KXen9AHvsdFTKHSANinZseWnPcX",
+    "Destination": {
+      "$type": "account",
+      "$value": ""
+    },
     "Amount": {
       "$value": "100",
-      "$type": "xrp"
+      "$type": "amount.xrp"
     },
     "Fee": "12",
     "Flags": "2147483648",
@@ -165,9 +201,12 @@
     "TransactionType": "PaymentChannelCreate",
     "Amount": {
       "$value": "100",
-      "$type": "xrp"
+      "$type": "amount.xrp"
+    },
+    "Destination": {
+      "$type": "account",
+      "$value": ""
     },
-    "Destination": "rsA2LpzuawewSBQXkiju3YQTMzW13pAAdW",
     "SettleDelay": 86400,
     "PublicKey": "32D2471DB72B27E3310F355BB33E339BF26F8392D5A93D3BC0FC3B566612DA0F0A",
     "CancelAfter": 533171558,
@@ -181,7 +220,7 @@
     "Channel": "C1AE6DDDEEC05CF2978C0BAD6FE302948E9533691DC749DCDD3B9E5992CA6198",
     "Amount": {
       "$value": "200",
-      "$type": "xrp"
+      "$type": "amount.xrp"
     },
     "Expiration": 543171558,
     "Fee": "10"
@@ -237,7 +276,7 @@
     "Flags": "262144",
     "LastLedgerSequence": 8007750,
     "LimitAmount": {
-      "$type": "json",
+      "$type": "amount.token",
       "$value": {
         "currency": "USD",
         "issuer": "rsP3mgGb2tcYUrxiLFiHJiQXhsziegtwBc",
@@ -248,6 +287,10 @@
   },
   {
     "TransactionType": "Invoke",
+    "Destination": {
+      "$type": "account",
+      "$value": ""
+    },
     "Fee": "12"
   },
   {

state/actions/deleteAccount.ts

@@ -14,11 +14,4 @@ export const deleteAccount = (addr?: string) => {
       if (!acc) return
       acc.label = acc.value
     })
-  transactionsState.transactions
-    .filter(t => t.state.selectedDestAccount?.value === addr)
-    .forEach(t => {
-      const acc = t.state.selectedDestAccount
-      if (!acc) return
-      acc.label = acc.value
-    })
 }

state/actions/sendTransaction.tsx

@@ -10,7 +10,6 @@ interface TransactionOptions {
   TransactionType: string
   Account?: string
   Fee?: string
-  Destination?: string
   [index: string]: any
 }
 interface OtherOptions {

state/transactions.ts

@@ -6,6 +6,7 @@ import { showAlert } from '../state/actions/showAlert'
 import { parseJSON } from '../utils/json'
 import { extractFlags, getFlags } from './constants/flags'
 import { fromHex } from '../utils/setHook'
+import { typeIs } from '../utils/helpers'
 
 export type SelectOption = {
   value: string
@@ -27,7 +28,6 @@ export type Memos = {
 export interface TransactionState {
   selectedTransaction: SelectOption | null
   selectedAccount: SelectOption | null
-  selectedDestAccount: SelectOption | null
   selectedFlags: SelectOption[] | null
   hookParameters: HookParameters
   memos: Memos
@@ -50,7 +50,6 @@ export type TxFields = Omit<
 export const defaultTransaction: TransactionState = {
   selectedTransaction: null,
   selectedAccount: null,
-  selectedDestAccount: null,
   selectedFlags: null,
   hookParameters: {},
   memos: {},
@@ -130,46 +129,51 @@ export const modifyTxState = (
   return tx.state
 }
 
-// state to tx options
 export const prepareTransaction = (data: any) => {
   let options = { ...data }
 
   Object.keys(options).forEach(field => {
     let _value = options[field]
-    // convert xrp
-    if (_value && typeof _value === 'object' && _value.$type === 'xrp') {
-      if (+_value.$value) {
-        options[field] = (+_value.$value * 1000000 + '') as any
+    if (!typeIs(_value, 'object')) return
+    // amount.xrp
+    if (_value.$type === 'amount.xrp') {
+      if (_value.$value) {
+        options[field] = (+(_value as any).$value * 1000000 + '')
       } else {
-        options[field] = undefined // 👇 💀
+        options[field] = ""
       }
     }
-    // handle type: `json`
-    if (_value && typeof _value === 'object' && _value.$type === 'json') {
-      if (typeof _value.$value === 'object') {
+    // amount.token
+    if (_value.$type === 'amount.token') {
+      if (typeIs(_value.$value, 'string')) {
+        options[field] = parseJSON(_value.$value)
+      } else if (typeIs(_value.$value, 'object')) {
         options[field] = _value.$value
       } else {
-        try {
-          options[field] = JSON.parse(_value.$value)
-        } catch (error) {
-          const message = `Input error for json field '${field}': ${error instanceof Error ? error.message : ''
-            }`
-          console.error(message)
-          options[field] = _value.$value
+        options[field] = undefined
       }
     }
+    // account
+    if (_value.$type === 'account') {
+      options[field] = (_value.$value as any)?.toString() || ""
+    }
+    // json
+    if (_value.$type === 'json') {
+      const val = _value.$value;
+      let res: any = val;
+      if (typeIs(val, ["object", "array"])) {
+        options[field] = res
+      } else if (typeIs(val, "string") && (res = parseJSON(val))) {
+        options[field] = res;
+      } else {
+        options[field] = res;
       }
-
-    // delete unnecessary fields
-    if (!options[field]) {
-      delete options[field]
     }
   })
 
   return options
 }
 
-// editor value to state
 export const prepareState = (value: string, transactionType?: string) => {
   const options = parseJSON(value)
   if (!options) {
@@ -179,7 +183,7 @@ export const prepareState = (value: string, transactionType?: string) => {
     return
   }
 
-  const { Account, TransactionType, Destination, HookParameters, Memos, ...rest } = options
+  const { Account, TransactionType, HookParameters, Memos, ...rest } = options
   let tx: Partial<TransactionState> = {}
   const schema = getTxFields(transactionType)
 
@@ -225,24 +229,6 @@ export const prepareState = (value: string, transactionType?: string) => {
     }, {})
   }
 
-  if (schema.Destination !== undefined) {
-    const dest = state.accounts.find(acc => acc.address === Destination)
-    if (dest) {
-      tx.selectedDestAccount = {
-        label: dest.name,
-        value: dest.address
-      }
-    } else if (Destination) {
-      tx.selectedDestAccount = {
-        label: Destination,
-        value: Destination
-      }
-    } else {
-      tx.selectedDestAccount = null
-    }
-  } else if (Destination) {
-    rest.Destination = Destination
-  }
 
   if (getFlags(TransactionType) && rest.Flags) {
     const flags = extractFlags(TransactionType, rest.Flags)
@@ -254,17 +240,31 @@ export const prepareState = (value: string, transactionType?: string) => {
   Object.keys(rest).forEach(field => {
     const value = rest[field]
     const schemaVal = schema[field as keyof TxFields]
-    const isXrp =
-      typeof value !== 'object' &&
-      schemaVal &&
-      typeof schemaVal === 'object' &&
-      schemaVal.$type === 'xrp'
-    if (isXrp) {
+
+    const isAmount = schemaVal &&
+      typeIs(schemaVal, "object") &&
+      schemaVal.$type.startsWith('amount.');
+    const isAccount = schemaVal &&
+      typeIs(schemaVal, "object") &&
+      schemaVal.$type.startsWith("account");
+
+    if (isAmount && ["number", "string"].includes(typeof value)) {
       rest[field] = {
-        $type: 'xrp',
+        $type: 'amount.xrp', // TODO narrow typed $type.
         $value: +value / 1000000 // ! maybe use bigint?
       }
-    } else if (typeof value === 'object') {
+    } else if (isAmount && typeof value === 'object') {
+      rest[field] = {
+        $type: 'amount.token',
+        $value: value
+      }
+    } else if (isAccount) {
+      rest[field] = {
+        $type: "account",
+        $value: value?.toString() || ""
+      }
+    }
+    else if (typeof value === 'object') {
       rest[field] = {
         $type: 'json',
         $value: value

utils/estimateFee.ts

@@ -24,6 +24,9 @@ const estimateFee = async (
     const { signedTransaction } = sign(copyTx, keypair)
 
     const res = await xrplSend({ command: 'fee', tx_blob: signedTransaction })
+    if (res.error) {
+      throw new Error(`[${res.error}] ${res.error_exception}.`);
+    }
     if (res && res.drops) {
       return res.drops
     }
@@ -31,7 +34,8 @@ const estimateFee = async (
   } catch (err) {
     if (!opts.silent) {
       console.error(err)
-      toast.error('Cannot estimate fee.') // ? Some better msg
+      const msg = err instanceof Error ? err.message : 'Error estimating fee!';
+      toast.error(msg);
     }
     return null
   }

utils/helpers.ts

@@ -19,3 +19,17 @@ export const getFileExtention = (filename?: string): string | undefined => {
   const ext = (filename.includes('.') && filename.split('.').pop()) || undefined
   return ext
 }
+
+type Type = "array" | "undefined" | "object" | "string" | "number" | "bigint" | "boolean" | "symbol" | "function"
+type obj = Record<string | number | symbol, unknown>
+type arr = unknown[]
+
+export const typeIs = <T extends Type>(arg: any, t: T | T[]): arg is unknown & (T extends "array" ? arr : T extends "undefined" ? undefined | null : T extends "object" ? obj : T extends "string" ? string : T extends "number" ? number : T extends "bigint" ? bigint : T extends "boolean" ? boolean : T extends "symbol" ? symbol : T extends "function" ? Function : never) => {
+  const types = Array.isArray(t) ? t : [t]
+  return types.includes(typeOf(arg) as T);
+}
+
+export const typeOf = (arg: any): Type => {
+  const type = arg instanceof Array ? 'array' : arg === null ? 'undefined' : typeof arg
+  return type;
+}

utils/schema.ts

@@ -1,9 +1,8 @@
+import { typeIs, typeOf } from './helpers'
+
 export const extractSchemaProps = <O extends object>(obj: O) =>
   Object.entries(obj).reduce((prev, [key, val]) => {
-    const typeOf = <T>(arg: T) =>
-      arg instanceof Array ? 'array' : arg === null ? 'undefined' : typeof arg
-
-    const value = typeOf(val) === 'object' && '$type' in val && '$value' in val ? val?.$value : val
+    const value = typeIs(val, "object") && '$type' in val && '$value' in val ? val?.$value : val
     const type = typeOf(value)
 
     let schema: any = {
@@ -12,19 +11,19 @@ export const extractSchemaProps = <O extends object>(obj: O) =>
       default: value
     }
 
-    if (typeOf(value) === 'array') {
+    if (typeIs(value, "array")) {
       const item = value[0] // TODO merge other item schema's into one
-      if (typeOf(item) !== 'object') {
+      if (typeIs(item, "object")) {
         schema.items = {
           type: 'object',
           properties: extractSchemaProps(item),
           default: item
         }
       }
-      // TODO support primitive-value arrays
+      // TODO primitive-value arrays
     }
 
-    if (typeOf(value) === 'object') {
+    if (typeIs(value, "object")) {
       schema.properties = extractSchemaProps(value)
     }
     return {