Iris/src/js/components/FollowButton.js

import React, { PropTypes } from 'react'
import { connect } from 'react-redux'
import { Link } from 'react-router'
import { createStore, bindActionCreators } from 'redux'
import FontAwesome from 'react-fontawesome'

import * as helpers from '../helpers'
import * as spotifyActions from '../services/spotify/actions'

class FollowButton extends React.Component{

	constructor(props) {
		super(props)
	}

	componentDidMount(){
		if (this.props.spotify_authorized && this.props.uri){
			this.props.spotifyActions.following(this.props.uri)			
		}
	}

	remove(){
		this.props.spotifyActions.following(this.props.uri, 'DELETE')
	}

	add(){
		this.props.spotifyActions.following(this.props.uri, 'PUT')
	}

	render(){
		if (!this.props.spotify_authorized || !this.props.uri){
			return false
		}

		var className = ''

		// Inherit passed-down classes
		if (this.props.className){
			className += ' '+this.props.className
		}

		// Loader
		if (helpers.isLoading(this.props.load_queue,['/following','/followers','me/albums/contains/?ids=','me/albums/?ids='])){
			className += ' working'
		}

		if (this.props.is_following === true){
			return <button className={className+' destructive'} onClick={e => this.remove()}>{this.props.removeText}</button>
		} else {
			return <button className={className} onClick={e => this.add()}>{this.props.addText}</button>
		}
	}
}

const mapStateToProps = (state, ownProps) => {
	return {
		load_queue: state.ui.load_queue,
		spotify_authorized: state.spotify.authorization
	}
}

const mapDispatchToProps = (dispatch) => {
	return {
		spotifyActions: bindActionCreators(spotifyActions, dispatch)
	}
}

export default connect(mapStateToProps, mapDispatchToProps)(FollowButton)