136 lines
3.1 KiB
JavaScript
136 lines
3.1 KiB
JavaScript
import {
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SWAP_DESTINATION_AMOUNT,
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SWAP_DESTINATION_KIND,
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SWAP_ORIGIN_AMOUNT,
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SWAP_ORIGIN_KIND,
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SWAP_UPDATE_BITY_RATES,
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SWAP_DESTINATION_ADDRESS,
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SWAP_RESTART,
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SWAP_STEP,
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SWAP_REFERENCE_NUMBER
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} from 'actions/swapConstants';
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import { combineAndUpper } from 'utils/formatters';
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export const ALL_CRYPTO_KIND_OPTIONS = ['BTC', 'ETH', 'REP'];
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const initialState = {
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originAmount: '',
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destinationAmount: '',
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originKind: 'BTC',
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destinationKind: 'ETH',
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destinationKindOptions: ALL_CRYPTO_KIND_OPTIONS.filter(
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element => element !== 'BTC'
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),
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originKindOptions: ALL_CRYPTO_KIND_OPTIONS.filter(
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element => element !== 'REP'
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),
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step: 1,
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bityRates: {},
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destinationAddress: '',
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referenceNumber: '',
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timeRemaining: '',
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numberOfConfirmations: null,
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orderStep: null
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};
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const buildDestinationAmount = (
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originAmount,
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originKind,
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destinationKind,
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bityRates
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) => {
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let pairName = combineAndUpper(originKind, destinationKind);
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let bityRate = bityRates[pairName];
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return originAmount * bityRate;
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};
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const buildDestinationKind = (originKind, destinationKind) => {
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if (originKind === destinationKind) {
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return ALL_CRYPTO_KIND_OPTIONS.filter(element => element !== originKind)[0];
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} else {
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return destinationKind;
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}
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};
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export function swap(state = initialState, action) {
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switch (action.type) {
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case SWAP_ORIGIN_KIND: {
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const newDestinationKind = buildDestinationKind(
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action.value,
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state.destinationKind
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);
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return {
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...state,
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originKind: action.value,
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destinationKind: newDestinationKind,
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destinationKindOptions: ALL_CRYPTO_KIND_OPTIONS.filter(
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element => element !== action.value
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),
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destinationAmount: buildDestinationAmount(
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state.originAmount,
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action.value,
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newDestinationKind,
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state.bityRates
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)
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};
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}
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case SWAP_DESTINATION_KIND: {
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return {
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...state,
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destinationKind: action.value,
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destinationAmount: buildDestinationAmount(
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state.originAmount,
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state.originKind,
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action.value,
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state.bityRates
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)
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};
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}
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case SWAP_ORIGIN_AMOUNT:
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return {
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...state,
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originAmount: action.value
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};
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case SWAP_DESTINATION_AMOUNT:
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return {
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...state,
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destinationAmount: action.value
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};
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case SWAP_UPDATE_BITY_RATES:
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return {
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...state,
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bityRates: {
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...state.bityRates,
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...action.value
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}
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};
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case SWAP_STEP: {
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return {
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...state,
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step: action.value
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};
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}
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case SWAP_DESTINATION_ADDRESS:
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return {
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...state,
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destinationAddress: action.value
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};
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case SWAP_RESTART:
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return {
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...state,
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...initialState,
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bityRates: state.bityRates
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};
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case SWAP_REFERENCE_NUMBER:
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return {
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...state,
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referenceNumber: '2341asdfads',
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timeRemaining: '2:30',
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numberOfConfirmations: 3,
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orderStep: 2
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};
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default:
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return state;
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}
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}
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