92 lines
3.1 KiB
TypeScript
92 lines
3.1 KiB
TypeScript
import { Reducer } from 'redux';
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import BN from 'bn.js';
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import { gasPriceToBase } from 'libs/units';
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import * as transactionTypes from '../types';
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import * as types from './types';
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export const FIELDS_INITIAL_STATE: types.TransactionFieldsState = {
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to: { raw: '', value: null },
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data: { raw: '', value: null },
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nonce: { raw: '', value: null },
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value: { raw: '', value: null },
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gasLimit: { raw: '21000', value: new BN(21000) },
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gasPrice: { raw: '20', value: gasPriceToBase(20) }
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};
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const updateField = (
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key: keyof types.TransactionFieldsState
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): Reducer<types.TransactionFieldsState> => (
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state: types.TransactionFieldsState,
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action: types.TransactionFieldAction
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) => ({
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...state,
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[key]: { ...state[key], ...action.payload }
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});
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const tokenToEther = (
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state: types.TransactionFieldsState,
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{ payload: { decimal: _, ...rest } }: transactionTypes.SwapTokenToEtherAction
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): types.TransactionFieldsState => ({
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...state,
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...rest,
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data: FIELDS_INITIAL_STATE.data
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});
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const etherToToken = (
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state: types.TransactionFieldsState,
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{
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payload: { decimal: _, tokenTo: __, tokenValue: ___, ...rest }
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}: transactionTypes.SwapEtherToTokenAction
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): types.TransactionFieldsState => ({
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...state,
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...rest,
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value: FIELDS_INITIAL_STATE.value
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});
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const tokenToToken = (
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state: types.TransactionFieldsState,
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{ payload: { decimal: _, tokenValue: __, ...rest } }: transactionTypes.SwapTokenToTokenAction
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): types.TransactionFieldsState => ({ ...state, ...rest });
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const reset = (
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state: types.TransactionFieldsState,
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{ payload: { isContractInteraction } }: transactionTypes.ResetTransactionSuccessfulAction
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): types.TransactionFieldsState => ({
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...FIELDS_INITIAL_STATE,
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...(isContractInteraction ? { to: state.to } : {})
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});
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export function fieldsReducer(
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state: types.TransactionFieldsState = FIELDS_INITIAL_STATE,
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action:
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| types.TransactionFieldAction
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| transactionTypes.SwapAction
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| transactionTypes.ResetTransactionSuccessfulAction
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) {
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switch (action.type) {
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case types.TransactionFieldsActions.TO_FIELD_SET:
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return updateField('to')(state, action);
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case types.TransactionFieldsActions.VALUE_FIELD_SET:
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return updateField('value')(state, action);
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case types.TransactionFieldsActions.DATA_FIELD_SET:
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return updateField('data')(state, action);
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case types.TransactionFieldsActions.GAS_LIMIT_FIELD_SET:
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return updateField('gasLimit')(state, action);
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case types.TransactionFieldsActions.NONCE_FIELD_SET:
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return updateField('nonce')(state, action);
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case types.TransactionFieldsActions.GAS_PRICE_FIELD_SET:
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return updateField('gasPrice')(state, action);
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case transactionTypes.TransactionActions.TOKEN_TO_ETHER_SWAP:
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return tokenToEther(state, action);
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case transactionTypes.TransactionActions.ETHER_TO_TOKEN_SWAP:
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return etherToToken(state, action);
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case transactionTypes.TransactionActions.TOKEN_TO_TOKEN_SWAP:
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return tokenToToken(state, action);
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case transactionTypes.TransactionActions.RESET_SUCCESSFUL:
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return reset(state, action);
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default:
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return state;
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}
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}
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