text: import React from "react";
  import PropTypes from "prop-types";
  import styled from "styled-components";
  import { connect } from "react-redux";
  import ErrorMessage from "Messages/ErrorMessage";
  import LoadingButton from "Buttons/LoadingButton";
  import AuthFooter from "Footers/AuthFooter";
  import { actions } from "@actions";
  import { strings } from "Utils";
  import { Header, Form, Input, Page, Logo } from "../auth";
  
  class LoginForm extends React.Component {
    state = {
      isButtonEnabled: false,
      username: null,
      password: null
    };
  
    static propTypes = {
      errors: PropTypes.string.isRequired,
      isLoading: PropTypes.bool.isRequired,
      onSubmit: PropTypes.func.isRequired
    };
  
    static defaultProps = {
      errors: null,
      isLoading: false,
      onSubmit: () => {}
    };
  
    onSubmit = event => {
      event.preventDefault();
  
      const { username, password } = this.state;
      this.props.onSubmit(username, password);
    };
  
    onFieldChange = event => {
      const target = event.target;
      const field = target.name;
      const value = target.value;
  
      this.setState({
        [field]: value,
        isButtonEnabled:
          Object.keys(this.state)
            .filter(key => !["isButtonEnabled", field].includes(key))
            .map(key => this.state[key])
            .every(v => v) && value
      });
    };
  
    render() {
      const { isLoading, error } = this.props;
      return (
        <Page>
          <Logo />
          <Header>{strings.labels.signIn}</Header>
          <Form onSubmit={this.onSubmit}>
            <Input
              type="text"
              name="username"
              value={this.state.username}
              onChange={this.onFieldChange}
              placeholder={strings.forms.usernameEmail}
            />
            <Input
              type="password"
              name="password"
              value={this.state.password}
              onChange={this.onFieldChange}
              placeholder={strings.forms.password}
            />
            <LoadingButton
              title={strings.labels.signIn}
              isLoading={isLoading}
              isEnabled={this.state.isButtonEnabled}
            />
          </Form>
          <ErrorMessage error={error} />
          <AuthFooter path="/forgot" text={strings.labels.forgotPassword} />
        </Page>
      );
    }
  }
  
  const mapStateToProps = state => ({
    isLoading: state.auth.isLoading,
    error: state.auth.error
  });
  
  const mapDispatchToProps = dispatch => ({
    onSubmit: (username, password) => dispatch(actions.login(username, password))
  });
  
  export default connect(
    mapStateToProps,
    mapDispatchToProps
  )(LoginForm);
  