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import { AssetBuyerError } from '@0x/asset-buyer';
import { Dispatch } from 'redux';
import { Action, actions } from '../redux/actions';
import { Asset, ZeroExInstantError } from '../types';
import { assetUtils } from './asset';
class ErrorFlasher {
private _timeoutId?: number;
public flashNewError(dispatch: Dispatch<Action>, error: any, delayMs: number = 7000): void {
this._clearTimeout();
// dispatch new message
dispatch(actions.setError(error));
this._timeoutId = window.setTimeout(() => {
dispatch(actions.hideError());
}, delayMs);
}
public clearError(dispatch: Dispatch<Action>): void {
this._clearTimeout();
dispatch(actions.hideError());
}
private _clearTimeout(): void {
if (this._timeoutId) {
window.clearTimeout(this._timeoutId);
}
}
}
const humanReadableMessageForError = (error: Error, asset?: Asset): string | undefined => {
const hasInsufficientLiquidity =
error.message === AssetBuyerError.InsufficientAssetLiquidity ||
error.message === AssetBuyerError.InsufficientZrxLiquidity;
if (hasInsufficientLiquidity) {
const assetName = assetUtils.bestNameForAsset(asset, 'of this asset');
return `Not enough ${assetName} available`;
}
if (
error.message === AssetBuyerError.StandardRelayerApiError ||
error.message.startsWith(AssetBuyerError.AssetUnavailable)
) {
const assetName = assetUtils.bestNameForAsset(asset, 'This asset');
return `${assetName} is currently unavailable`;
}
if (error.message === AssetBuyerError.SignatureRequestDenied) {
return 'You denied this transaction';
}
if (error.message === ZeroExInstantError.InsufficientETH) {
return "You don't have enough ETH";
}
return undefined;
};
export const errorUtil = {
errorFlasher: new ErrorFlasher(),
errorDescription: (error?: any, asset?: Asset): { icon: string; message: string } => {
let bestMessage: string | undefined;
if (error instanceof Error) {
bestMessage = humanReadableMessageForError(error, asset);
}
return {
icon: '😢',
message: bestMessage || 'Something went wrong...',
};
},
};
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