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// @flow
import React, { Component } from 'react';
import { Layout, Container, Header } from './Layout';
import AccountInput from './AccountInput';
import ExternalLinkSVG from '../assets/images/icon-extLink.svg';
import LoginArrowSVG from '../assets/images/icon-arrow.svg';
import type { AccountReduxState, LoginState } from '../redux/account/reducers';
export type LoginPropTypes = {
account: AccountReduxState,
onLogin: (accountNumber: string) => void,
onSettings: ?(() => void),
onFirstChangeAfterFailure: () => void,
onExternalLink: (type: string) => void,
};
export default class Login extends Component {
props: LoginPropTypes;
state = {
notifyOnFirstChangeAfterFailure: false,
isActive: false,
unsubmittedAccountNumber: '',
};
onCreateAccount = () => this.props.onExternalLink('createAccount');
onFocus = () => this.setState({ isActive: true });
onBlur = () => this.setState({ isActive: false });
onLogin = () => {
const accountNumber = this.state.unsubmittedAccountNumber;
if(accountNumber && accountNumber.length > 0) {
this.props.onLogin(accountNumber);
this.setState({
unsubmittedAccountNumber: '',
});
}
}
onInputChange = (val: string) => {
// notify delegate on first change after login failure
if(this.state.notifyOnFirstChangeAfterFailure) {
this.setState({ notifyOnFirstChangeAfterFailure: false });
this.props.onFirstChangeAfterFailure();
}
this.setState({
unsubmittedAccountNumber: val,
});
}
formTitle(s: LoginState): string {
switch(s) {
case 'logging in': return 'Logging in...';
case 'failed': return 'Login failed';
case 'ok': return 'Login successful';
default: return 'Login';
}
}
formSubtitle(s: LoginState, e: ?Error): string {
switch(s) {
case 'failed': return (e && e.message) || 'Unknown error';
case 'logging in': return 'Checking account number';
default: return 'Enter your account number';
}
}
inputWrapClass(s: LoginState): string {
const classes = ['login-form__input-wrap'];
if(this.state.isActive) {
classes.push('login-form__input-wrap--active');
}
switch(s) {
case 'logging in':
classes.push('login-form__input-wrap--inactive');
break;
case 'failed':
classes.push('login-form__input-wrap--error');
break;
}
return classes.join(' ');
}
submitClass(s: LoginState, accountNumber: ?string): string {
const classes = ['login-form__submit'];
if(accountNumber && accountNumber.length > 0) {
classes.push('login-form__submit--active');
}
if(s === 'logging in') {
classes.push('login-form__submit--invisible');
}
return classes.join(' ');
}
componentWillReceiveProps(nextProps: LoginPropTypes) {
const prev = this.props.account || {};
const next = nextProps.account || {};
if(prev.status !== next.status && next.status === 'failed') {
this.setState({ notifyOnFirstChangeAfterFailure: true });
}
}
render(): React.Element<*> {
const { status } = this.props.account;
const title = this.formTitle(status);
const shouldShowLoginForm = status !== 'ok';
const shouldShowFooter = status === 'none' || status === 'failed';
const statusIcon = this._getStatusIcon();
const loginFormClass = shouldShowLoginForm ? '' : 'login-form__fields--invisible';
const loginForm = this._createLoginForm();
const footerClass = shouldShowFooter ? '' : 'login-footer--invisible';
const footer = this._createFooter();
return (
<Layout>
<Header showSettings={ true } onSettings={ this.props.onSettings } />
<Container>
<div className="login">
<div className="login-form">
{ statusIcon }
<div className="login-form__title">{ title }</div>
<div className={ 'login-form__fields ' + loginFormClass }>
{ loginForm }
</div>
</div>
<div className={ 'login-footer ' + footerClass }>
{ footer }
</div>
</div>
</Container>
</Layout>
);
}
_getStatusIcon(): React.Element<*> {
const statusIconPath = this._getStatusIconPath();
return <div className="login-form__status-icon">
<img src={ statusIconPath } alt="" />
</div>;
}
_getStatusIconPath(): ?string {
switch(this.props.account.status) {
case 'logging in':
return './assets/images/icon-spinner.svg';
case 'failed':
return './assets/images/icon-fail.svg';
case 'ok':
return './assets/images/icon-success.svg';
default:
return undefined;
}
}
_createLoginForm(): React.Element<*> {
const { status, error } = this.props.account;
const accountNumber = status === 'logging in'
? this.props.account.accountNumber
: this.state.unsubmittedAccountNumber;
const inputDisabled = status === 'logging in';
const subtitle = this.formSubtitle(status, error);
const inputWrapClass = this.inputWrapClass(status);
const submitClass = this.submitClass(status, accountNumber);
const autoFocusRef = input => {
if(status === 'failed' && input) {
input.focus();
}
};
return <div>
<div className="login-form__subtitle">{ subtitle }</div>
<div className={ inputWrapClass }>
<AccountInput className="login-form__input-field"
type="text"
placeholder="e.g 0000 0000 0000"
onFocus={ this.onFocus }
onBlur={ this.onBlur }
onChange={ this.onInputChange }
onEnter={ this.onLogin }
value={ accountNumber || '' }
disabled={ inputDisabled }
autoFocus={ true }
ref={ autoFocusRef } />
<button className={ submitClass } onClick={ this.onLogin }>
<LoginArrowSVG className="login-form__submit-icon" />
</button>
</div>
</div>;
}
_createFooter(): React.Element<*> {
return <div>
<div className="login-footer__prompt">{ 'Don\'t have an account number?' }</div>
<button className="button button--primary" onClick={ this.onCreateAccount }>
<span className="button-label">Create account</span>
<ExternalLinkSVG className="button-icon button-icon--16" />
</button>
</div>;
}
}
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