102 lines
4.2 KiB
TypeScript
102 lines
4.2 KiB
TypeScript
import * as _ from 'lodash';
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import {ZeroEx} from '0x.js';
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import * as React from 'react';
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import BigNumber from 'bignumber.js';
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import RaisedButton from 'material-ui/RaisedButton';
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import {BlockchainCallErrs, TokenState} from 'ts/types';
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import {EthWethConversionDialog} from 'ts/components/dialogs/eth_weth_conversion_dialog';
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import {Side, Token} from 'ts/types';
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import {constants} from 'ts/utils/constants';
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import {utils} from 'ts/utils/utils';
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import {Dispatcher} from 'ts/redux/dispatcher';
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import {errorReporter} from 'ts/utils/error_reporter';
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import {Blockchain} from 'ts/blockchain';
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interface EthWethConversionButtonProps {
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ethToken: Token;
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ethTokenState: TokenState;
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dispatcher: Dispatcher;
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blockchain: Blockchain;
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userEtherBalance: BigNumber;
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onError: () => void;
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}
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interface EthWethConversionButtonState {
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isEthConversionDialogVisible: boolean;
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isEthConversionHappening: boolean;
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}
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export class EthWethConversionButton extends
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React.Component<EthWethConversionButtonProps, EthWethConversionButtonState> {
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public constructor(props: EthWethConversionButtonProps) {
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super(props);
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this.state = {
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isEthConversionDialogVisible: false,
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isEthConversionHappening: false,
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};
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}
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public render() {
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const labelStyle = this.state.isEthConversionHappening ? {fontSize: 10} : {};
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return (
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<div>
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<RaisedButton
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style={{width: '100%'}}
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labelStyle={labelStyle}
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disabled={this.state.isEthConversionHappening}
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label={this.state.isEthConversionHappening ? 'Converting...' : 'Convert'}
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onClick={this.toggleConversionDialog.bind(this)}
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/>
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<EthWethConversionDialog
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isOpen={this.state.isEthConversionDialogVisible}
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onComplete={this.onConversionAmountSelectedAsync.bind(this)}
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onCancelled={this.toggleConversionDialog.bind(this)}
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etherBalance={this.props.userEtherBalance}
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token={this.props.ethToken}
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tokenState={this.props.ethTokenState}
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/>
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</div>
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);
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}
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private toggleConversionDialog() {
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this.setState({
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isEthConversionDialogVisible: !this.state.isEthConversionDialogVisible,
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});
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}
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private async onConversionAmountSelectedAsync(direction: Side, value: BigNumber) {
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this.setState({
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isEthConversionHappening: true,
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});
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this.toggleConversionDialog();
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const token = this.props.ethToken;
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const tokenState = this.props.ethTokenState;
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let balance = tokenState.balance;
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try {
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if (direction === Side.deposit) {
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await this.props.blockchain.convertEthToWrappedEthTokensAsync(value);
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const ethAmount = ZeroEx.toUnitAmount(value, constants.ETH_DECIMAL_PLACES);
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this.props.dispatcher.showFlashMessage(`Successfully converted ${ethAmount.toString()} ETH to WETH`);
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balance = balance.plus(value);
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} else {
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await this.props.blockchain.convertWrappedEthTokensToEthAsync(value);
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const tokenAmount = ZeroEx.toUnitAmount(value, token.decimals);
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this.props.dispatcher.showFlashMessage(`Successfully converted ${tokenAmount.toString()} WETH to ETH`);
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balance = balance.minus(value);
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}
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this.props.dispatcher.replaceTokenBalanceByAddress(token.address, balance);
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} catch (err) {
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const errMsg = '' + err;
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if (_.includes(errMsg, BlockchainCallErrs.USER_HAS_NO_ASSOCIATED_ADDRESSES)) {
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this.props.dispatcher.updateShouldBlockchainErrDialogBeOpen(true);
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} else if (!_.includes(errMsg, 'User denied transaction')) {
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utils.consoleLog(`Unexpected error encountered: ${err}`);
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utils.consoleLog(err.stack);
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await errorReporter.reportAsync(err);
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this.props.onError();
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}
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}
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this.setState({
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isEthConversionHappening: false,
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});
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}
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}
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