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import { ZeroEx } from '0x.js';
import { BigNumber } from '@0xproject/utils';
import * as _ from 'lodash';
import * as React from 'react';
import { Link } from 'react-router-dom';
import { BalanceBoundedInput } from 'ts/components/inputs/balance_bounded_input';
import { InputErrMsg, Token, TokenState, ValidatedBigNumberCallback, WebsitePaths } from 'ts/types';
import { colors } from 'ts/utils/colors';
interface TokenAmountInputProps {
token: Token;
tokenState: TokenState;
label?: string;
amount?: BigNumber;
shouldShowIncompleteErrs: boolean;
shouldCheckBalance: boolean;
shouldCheckAllowance: boolean;
onChange: ValidatedBigNumberCallback;
onVisitBalancesPageClick?: () => void;
}
interface TokenAmountInputState {}
export class TokenAmountInput extends React.Component<TokenAmountInputProps, TokenAmountInputState> {
public render() {
const amount = this.props.amount
? ZeroEx.toUnitAmount(this.props.amount, this.props.token.decimals)
: undefined;
const hasLabel = !_.isUndefined(this.props.label);
return (
<div className="flex overflow-hidden" style={{ height: hasLabel ? 84 : 62 }}>
<BalanceBoundedInput
label={this.props.label}
amount={amount}
balance={ZeroEx.toUnitAmount(this.props.tokenState.balance, this.props.token.decimals)}
onChange={this._onChange.bind(this)}
validate={this._validate.bind(this)}
shouldCheckBalance={this.props.shouldCheckBalance}
shouldShowIncompleteErrs={this.props.shouldShowIncompleteErrs}
onVisitBalancesPageClick={this.props.onVisitBalancesPageClick}
/>
<div style={{ paddingTop: hasLabel ? 39 : 14 }}>{this.props.token.symbol}</div>
</div>
);
}
private _onChange(isValid: boolean, amount?: BigNumber) {
let baseUnitAmount;
if (!_.isUndefined(amount)) {
baseUnitAmount = ZeroEx.toBaseUnitAmount(amount, this.props.token.decimals);
}
this.props.onChange(isValid, baseUnitAmount);
}
private _validate(amount: BigNumber): InputErrMsg {
if (this.props.shouldCheckAllowance && amount.gt(this.props.tokenState.allowance)) {
return (
<span>
Insufficient allowance.{' '}
<Link
to={`${WebsitePaths.Portal}/balances`}
style={{ cursor: 'pointer', color: colors.darkestGrey }}
>
Set allowance
</Link>
</span>
);
} else {
return undefined;
}
}
}
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