import React, { PropTypes } from 'react';
import * as FileActions from '../actions/files';
import * as IDEActions from '../actions/ide';
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
import InlineSVG from 'react-inlinesvg';
const downArrowUrl = require('../../../images/down-arrow.svg');
import classNames from 'classnames';

export class FileNode extends React.Component {
  constructor(props) {
    super(props);
    this.renderChild = this.renderChild.bind(this);
    this.handleKeyPress = this.handleKeyPress.bind(this);
    this.handleFileNameChange = this.handleFileNameChange.bind(this);
    this.validateFileName = this.validateFileName.bind(this);
    this.handleFileClick = this.handleFileClick.bind(this);
  }

  handleFileClick(e) {
    e.stopPropagation();
    this.props.setSelectedFile(this.props.id);
  }

  handleFileNameChange(event) {
    this.props.updateFileName(this.props.id, event.target.value);
  }

  handleKeyPress(event) {
    if (event.key === 'Enter') {
      this.props.hideEditFileName(this.props.id);
    }
  }

  validateFileName() {
    const oldFileExtension = this.originalFileName.match(/\.[0-9a-z]+$/i);
    const newFileExtension = this.props.name.match(/\.[0-9a-z]+$/i);
    if (oldFileExtension && !newFileExtension) {
      this.props.updateFileName(this.props.id, this.originalFileName);
    }
    if (oldFileExtension && newFileExtension && oldFileExtension[0] !== newFileExtension[0]) {
      this.props.updateFileName(this.props.id, this.originalFileName);
    }
  }

  renderChild(childId) {
    return (
      <li key={childId}>
        <ConnectedFileNode id={childId} parentId={this.props.id} />
      </li>
    );
  }

  render() {
    let itemClass = classNames({
      'sidebar__file-item': this.props.name !== 'root',
      'sidebar__file-item--selected': this.props.isSelected,
      'sidebar__file-item--open': this.props.isOptionsOpen,
      'sidebar__file-item--editing': this.props.isEditingName
    });
    return (
      <div
        className={itemClass}
        onClick={this.handleFileClick}
        onBlur={() => setTimeout(() => this.props.hideFileOptions(this.props.id), 100)}
      >
        {(() => { // eslint-disable-line
          if (this.props.name !== 'root') {
            return (
              <div className="file-item__content">
                <a className="sidebar__file-item-name">{this.props.name}</a>
                <input
                  type="text"
                  className="sidebar__file-item-input"
                  value={this.props.name}
                  onChange={this.handleFileNameChange}
                  ref="fileNameInput"
                  onBlur={() => {
                    this.validateFileName();
                    this.props.hideEditFileName(this.props.id);
                  }}
                  onKeyPress={this.handleKeyPress}
                />
                <button
                  className="sidebar__file-item-show-options"
                  aria-label="view file options"
                  onClick={() => this.props.showFileOptions(this.props.id)}
                >
                  <InlineSVG src={downArrowUrl} />
                </button>
                <div ref="fileOptions" className="sidebar__file-item-options">
                  <ul title="file options">
                    <li>
                      <a
                        onClick={() => {
                          this.originalFileName = this.props.name;
                          this.props.showEditFileName(this.props.id);
                          setTimeout(() => this.refs.fileNameInput.focus(), 0);
                        }}
                      >
                        Rename
                      </a>
                    </li>
                    <li>
                      <a
                        onClick={() => {
                          if (window.confirm(`Are you sure you want to delete ${this.props.name}?`)) {
                            this.props.deleteFile(this.props.id, this.props.parentId);
                            this.props.resetSelectedFile();
                          }
                        }}
                      >
                        Delete
                      </a>
                    </li>
                  </ul>
                </div>
              </div>
            );
          }
        })()}
        {(() => { // eslint-disable-line
          if (this.props.children) {
            return (
              <ul>
                {this.props.children.map(this.renderChild)}
              </ul>
            );
          }
        })()}
      </div>
    );
  }
}

FileNode.propTypes = {
  id: PropTypes.string.isRequired,
  parentId: PropTypes.string,
  children: PropTypes.array,
  name: PropTypes.string.isRequired,
  isSelected: PropTypes.bool,
  isOptionsOpen: PropTypes.bool,
  isEditingName: PropTypes.bool,
  setSelectedFile: PropTypes.func.isRequired,
  showFileOptions: PropTypes.func.isRequired,
  hideFileOptions: PropTypes.func.isRequired,
  deleteFile: PropTypes.func.isRequired,
  showEditFileName: PropTypes.func.isRequired,
  hideEditFileName: PropTypes.func.isRequired,
  updateFileName: PropTypes.func.isRequired,
  resetSelectedFile: PropTypes.func.isRequired
};

function mapStateToProps(state, ownProps) {
                                                            // this is a hack, state is updated before ownProps
  return state.files.find((file) => file.id === ownProps.id) || { ...ownProps, name: 'test' };
}

function mapDispatchToProps(dispatch) {
  return bindActionCreators(Object.assign(FileActions, IDEActions), dispatch);
}

const ConnectedFileNode = connect(mapStateToProps, mapDispatchToProps)(FileNode);
export default ConnectedFileNode;