74 lines
3.0 KiB
TypeScript
74 lines
3.0 KiB
TypeScript
import * as _ from 'lodash';
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import { BIG_NUMBER_ZERO } from '../constants';
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import { AccountState } from '../types';
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import { assetUtils } from '../util/asset';
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import { coinbaseApi } from '../util/coinbase_api';
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import { errorFlasher } from '../util/error_flasher';
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import { actions } from './actions';
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import { Store } from './store';
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export const asyncData = {
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fetchEthPriceAndDispatchToStore: async (store: Store) => {
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try {
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const ethUsdPrice = await coinbaseApi.getEthUsdPrice();
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store.dispatch(actions.updateEthUsdPrice(ethUsdPrice));
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} catch (e) {
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const errorMessage = 'Error fetching ETH/USD price';
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errorFlasher.flashNewErrorMessage(store.dispatch, errorMessage);
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store.dispatch(actions.updateEthUsdPrice(BIG_NUMBER_ZERO));
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}
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},
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fetchAvailableAssetDatasAndDispatchToStore: async (store: Store) => {
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const { providerState, assetMetaDataMap, network } = store.getState();
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const assetBuyer = providerState.assetBuyer;
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try {
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const assetDatas = await assetBuyer.getAvailableAssetDatasAsync();
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const assets = assetUtils.createAssetsFromAssetDatas(assetDatas, assetMetaDataMap, network);
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store.dispatch(actions.setAvailableAssets(assets));
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} catch (e) {
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const errorMessage = 'Could not find any assets';
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errorFlasher.flashNewErrorMessage(store.dispatch, errorMessage);
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// On error, just specify that none are available
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store.dispatch(actions.setAvailableAssets([]));
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}
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},
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fetchAccountInfoAndDispatchToStore: async (store: Store) => {
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const { providerState } = store.getState();
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const web3Wrapper = providerState.web3Wrapper;
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if (providerState.account.state !== AccountState.Loading) {
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store.dispatch(actions.setAccountStateLoading());
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}
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let availableAddresses: string[];
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try {
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availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
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} catch (e) {
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store.dispatch(actions.setAccountStateError());
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return;
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}
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if (!_.isEmpty(availableAddresses)) {
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const activeAddress = availableAddresses[0];
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store.dispatch(actions.setAccountStateReady(activeAddress));
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await asyncData.fetchAccountBalanceAndDispatchToStore(store);
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} else {
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store.dispatch(actions.setAccountStateLocked());
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}
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},
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fetchAccountBalanceAndDispatchToStore: async (store: Store) => {
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const { providerState } = store.getState();
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const web3Wrapper = providerState.web3Wrapper;
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const account = providerState.account;
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if (account.state !== AccountState.Ready) {
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return;
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}
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try {
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const ethBalanceInWei = await web3Wrapper.getBalanceInWeiAsync(account.address);
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store.dispatch(actions.updateAccountEthBalance(ethBalanceInWei));
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} catch (e) {
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// leave balance as is
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return;
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}
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},
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};
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