import PropTypes from 'prop-types';
import React from 'react';
import { Helmet } from 'react-helmet';
import { connect } from 'react-redux';
import { bindActionCreators } from 'redux';
// import find from 'lodash/find';
import * as ProjectsActions from '../actions/projects';
import * as CollectionsActions from '../actions/collections';
import * as ToastActions from '../actions/toast';
import * as SortingActions from '../actions/sorting';
import getSortedSketches from '../selectors/projects';
import Loader from '../../App/components/loader';
import QuickAddList from './QuickAddList';

class SketchList extends React.Component {
  constructor(props) {
    super(props);
    this.props.getProjects(this.props.username);

    this.state = {
      isInitialDataLoad: true,
    };
  }

  componentWillReceiveProps(nextProps) {
    if (this.props.sketches !== nextProps.sketches && Array.isArray(nextProps.sketches)) {
      this.setState({
        isInitialDataLoad: false,
      });
    }
  }

  getSketchesTitle() {
    if (this.props.username === this.props.user.username) {
      return 'p5.js Web Editor | My sketches';
    }
    return `p5.js Web Editor | ${this.props.username}'s sketches`;
  }

  handleCollectionAdd = (sketch) => {
    this.props.addToCollection(this.props.collection.id, sketch.id);
  }

  handleCollectionRemove = (sketch) => {
    this.props.removeFromCollection(this.props.collection.id, sketch.id);
  }

  inCollection = sketch => this.props.collection.items.find(item => item.project.id === sketch.id) != null

  render() {
    const hasSketches = this.props.sketches.length > 0;
    const sketchesWithAddedStatus = this.props.sketches.map(sketch => ({
      ...sketch,
      isAdded: this.inCollection(sketch),
      url: `/${this.props.username}/sketches/${sketch.id}`,
    }));

    let content = null;

    if (this.props.loading && this.state.isInitialDataLoad) {
      content = <Loader />;
    } else if (hasSketches) {
      content = <QuickAddList items={sketchesWithAddedStatus} onAdd={this.handleCollectionAdd} onRemove={this.handleCollectionRemove} />;
    } else {
      content = 'No collections';
    }

    return (
      <div>
        <Helmet>
          <title>{this.getSketchesTitle()}</title>
        </Helmet>
        {content}
      </div>
    );
  }
}

SketchList.propTypes = {
  user: PropTypes.shape({
    username: PropTypes.string,
    authenticated: PropTypes.bool.isRequired
  }).isRequired,
  getProjects: PropTypes.func.isRequired,
  sketches: PropTypes.arrayOf(PropTypes.shape({
    id: PropTypes.string.isRequired,
    name: PropTypes.string.isRequired,
    createdAt: PropTypes.string.isRequired,
    updatedAt: PropTypes.string.isRequired
  })).isRequired,
  collection: PropTypes.shape({
    id: PropTypes.string.isRequired,
    name: PropTypes.string.isRequired,
    items: PropTypes.arrayOf(PropTypes.shape({
      project: PropTypes.shape({
        id: PropTypes.string.isRequired,
      }),
    })),
  }).isRequired,
  username: PropTypes.string,
  loading: PropTypes.bool.isRequired,
  sorting: PropTypes.shape({
    field: PropTypes.string.isRequired,
    direction: PropTypes.string.isRequired
  }).isRequired,
  addToCollection: PropTypes.func.isRequired,
  removeFromCollection: PropTypes.func.isRequired,
};

SketchList.defaultProps = {
  username: undefined
};

function mapStateToProps(state) {
  return {
    user: state.user,
    sketches: getSortedSketches(state),
    sorting: state.sorting,
    loading: state.loading,
    project: state.project
  };
}

function mapDispatchToProps(dispatch) {
  return bindActionCreators(
    Object.assign({}, ProjectsActions, CollectionsActions, ToastActions, SortingActions),
    dispatch
  );
}

export default connect(mapStateToProps, mapDispatchToProps)(SketchList);