import { AssetBuyer } from '@0x/asset-buyer';
import { AssetProxyId } from '@0x/types';
import { BigNumber } from '@0x/utils';
import * as _ from 'lodash';
import * as React from 'react';
import { connect } from 'react-redux';
import { Dispatch } from 'redux';
import { ERC20AssetAmountInput, ERC20AssetAmountInputProps } from '../components/erc20_asset_amount_input';
import { Action, actions } from '../redux/actions';
import { State } from '../redux/reducer';
import { ColorOption } from '../style/theme';
import { AffiliateInfo, ERC20Asset, Omit, OrderProcessState, QuoteFetchOrigin } from '../types';
import { buyQuoteUpdater } from '../util/buy_quote_updater';
export interface SelectedERC20AssetAmountInputProps {
fontColor?: ColorOption;
startingFontSizePx: number;
onSelectAssetClick?: (asset?: ERC20Asset) => void;
}
interface ConnectedState {
assetBuyer: AssetBuyer;
value?: BigNumber;
asset?: ERC20Asset;
isInputDisabled: boolean;
numberOfAssetsAvailable?: number;
affiliateInfo?: AffiliateInfo;
canSelectOtherAsset: boolean;
}
interface ConnectedDispatch {
updateBuyQuote: (
assetBuyer: AssetBuyer,
value?: BigNumber,
asset?: ERC20Asset,
affiliateInfo?: AffiliateInfo,
) => void;
}
type ConnectedProps = Omit<ERC20AssetAmountInputProps, keyof SelectedERC20AssetAmountInputProps>;
type FinalProps = ConnectedProps & SelectedERC20AssetAmountInputProps;
const mapStateToProps = (state: State, _ownProps: SelectedERC20AssetAmountInputProps): ConnectedState => {
const processState = state.buyOrderState.processState;
const isInputEnabled = processState === OrderProcessState.None || processState === OrderProcessState.Failure;
const isInputDisabled = !isInputEnabled;
const selectedAsset =
!_.isUndefined(state.selectedAsset) && state.selectedAsset.metaData.assetProxyId === AssetProxyId.ERC20
? (state.selectedAsset as ERC20Asset)
: undefined;
const numberOfAssetsAvailable = _.isUndefined(state.availableAssets) ? undefined : state.availableAssets.length;
const canSelectOtherAsset =
numberOfAssetsAvailable && numberOfAssetsAvailable > 1
? isInputEnabled || processState === OrderProcessState.Success
: false;
const assetBuyer = state.providerState.assetBuyer;
return {
assetBuyer,
value: state.selectedAssetUnitAmount,
asset: selectedAsset,
isInputDisabled,
numberOfAssetsAvailable,
affiliateInfo: state.affiliateInfo,
canSelectOtherAsset,
};
};
const debouncedUpdateBuyQuoteAsync = _.debounce(buyQuoteUpdater.updateBuyQuoteAsync.bind(buyQuoteUpdater), 200, {
trailing: true,
}) as typeof buyQuoteUpdater.updateBuyQuoteAsync;
const mapDispatchToProps = (
dispatch: Dispatch<Action>,
_ownProps: SelectedERC20AssetAmountInputProps,
): ConnectedDispatch => ({
updateBuyQuote: (assetBuyer, value, asset, affiliateInfo) => {
// Update the input
dispatch(actions.updateSelectedAssetAmount(value));
// invalidate the last buy quote.
dispatch(actions.updateLatestBuyQuote(undefined));
// reset our buy state
dispatch(actions.setBuyOrderStateNone());
if (!_.isUndefined(value) && value.greaterThan(0) && !_.isUndefined(asset)) {
// even if it's debounced, give them the illusion it's loading
dispatch(actions.setQuoteRequestStatePending());
// tslint:disable-next-line:no-floating-promises
debouncedUpdateBuyQuoteAsync(assetBuyer, dispatch, asset, value, {
setPending: true,
dispatchErrors: true,
affiliateInfo,
fetchedVia: QuoteFetchOrigin.Manual,
});
}
},
});
const mergeProps = (
connectedState: ConnectedState,
connectedDispatch: ConnectedDispatch,
ownProps: SelectedERC20AssetAmountInputProps,
): FinalProps => {
return {
...ownProps,
asset: connectedState.asset,
value: connectedState.value,
onChange: (value, asset) => {
connectedDispatch.updateBuyQuote(connectedState.assetBuyer, value, asset, connectedState.affiliateInfo);
},
isInputDisabled: connectedState.isInputDisabled,
numberOfAssetsAvailable: connectedState.numberOfAssetsAvailable,
canSelectOtherAsset: connectedState.canSelectOtherAsset,
};
};
export const SelectedERC20AssetAmountInput: React.ComponentClass<SelectedERC20AssetAmountInputProps> = connect(
mapStateToProps,
mapDispatchToProps,
mergeProps,
)(ERC20AssetAmountInput);