import React, { PropTypes } from 'react'
import { connect } from 'react-redux'
import { bindActionCreators } from 'redux'

import Link from '../components/Link';
import ErrorMessage from '../components/ErrorMessage';
import Header from '../components/Header'
import TrackList from '../components/TrackList'
import Thumbnail from '../components/Thumbnail'
import ArtistSentence from '../components/ArtistSentence'
import ArtistGrid from '../components/ArtistGrid'
import FollowButton from '../components/Fields/FollowButton'
import LastfmLoveButton from '../components/Fields/LastfmLoveButton'
import Dater from '../components/Dater'
import LazyLoadListener from '../components/LazyLoadListener'
import ContextMenuTrigger from '../components/ContextMenuTrigger'
import URILink from '../components/URILink'
import Icon from '../components/Icon'
import Popularity from '../components/Popularity'

import * as helpers from '../helpers'
import * as coreActions from '../services/core/actions'
import * as uiActions from '../services/ui/actions'
import * as mopidyActions from '../services/mopidy/actions'
import * as spotifyActions from '../services/spotify/actions'
import * as lastfmActions from '../services/lastfm/actions'
import * as geniusActions from '../services/genius/actions'

class Track extends React.Component{

	constructor(props){
		super(props);
	}

	componentDidMount(){
		this.props.coreActions.loadTrack(this.props.uri);

		// We already have the track in our index, so it won't fire componentWillReceiveProps
		if (this.props.track){
			this.setWindowTitle(this.props.track);

			if (this.props.genius_authorized && this.props.track.artists && !this.props.track.lyrics_results){
				this.props.geniusActions.findTrackLyrics(this.props.track);
			}
		}
	}

	handleContextMenu(e){
		e.preventDefault()
		var data = { uris: [this.props.uri] }
		this.props.uiActions.showContextMenu(e, data, 'track', 'click' )
	}

	componentWillReceiveProps(nextProps){

		// if our URI has changed, fetch new track
		if (nextProps.uri != this.props.uri){
			this.props.coreActions.loadTrack(nextProps.uri);

			if (nextProps.genius_authorized && nextProps.tracks.artists){
				this.props.geniusActions.findTrackLyrics(nextProps.track);
			}

		// if mopidy has just connected AND we're not a Spotify track, go get
		} else if (!this.props.mopidy_connected && nextProps.mopidy_connected){
			if (helpers.uriSource(this.props.uri) != 'spotify'){
				this.props.coreActions.loadTrack(nextProps.uri);
			}
		}

		// We have just received our full track or our track artists
		if ((!this.props.track && nextProps.track) || (!this.props.track.artists && nextProps.track.artists)){

			this.setWindowTitle(nextProps.track);

			// Ready to load LastFM
			if (nextProps.lastfm_authorized){
				this.props.lastfmActions.getTrack(nextProps.track.uri);
			}

			// Ready to load lyrics
			if (nextProps.genius_authorized && !nextProps.track.lyrics_results){
				this.props.geniusActions.findTrackLyrics(nextProps.track);
			}
		}

		if (!this.props.track && nextProps.track){
			this.setWindowTitle(nextProps.track);
		}
	}

	setWindowTitle(track = this.props.track){
		if (track){
			var artists = "";
			for (var i = 0; i < track.artists.length; i++){
				if (artists != ""){
					artists += ", ";
				}
				artists += track.artists[i].name;
			}
			this.props.uiActions.setWindowTitle(track.name+" by "+artists+" (track)");
		} else{
			this.props.uiActions.setWindowTitle("Track");
		}
	}

	handleContextMenu(e){
		var data = {
			e: e,
			context: 'track',
			items: [this.props.track],
			uris: [this.props.uri]
		}
		this.props.uiActions.showContextMenu(data)
	}

	play(){
		this.props.mopidyActions.playURIs([this.props.uri], this.props.uri)
	}

	renderLyricsSelector(){
		if (this.props.track.lyrics_results === undefined || this.props.track.lyrics_results === null){
			return null;

		} else if (this.props.track.lyrics_results.length <= 0){
			return (
				<div className="field lyrics-selector">
					<div className="input">
						<input type="text" disabled="disabled" value="No results" />
						<div className="description">
							Switch to another lyrics seach result
						</div>
					</div>
				</div>
			);
		}

		return (
			<div className="field lyrics-selector">
				<div className="input">
					<select
						onChange={e => this.props.geniusActions.getTrackLyrics(this.props.track.uri, e.target.value)}>
						{
							this.props.track.lyrics_results.map(result => {
								return (
									<option
										key={result.path}
										value={result.path}
										defaultValue={result.path == this.props.track.lyrics_path}
									>
											{result.title}
									</option>
								)
							})
						}
					</select>
					<div className="description">
						Switch to another lyrics seach result
					</div>
				</div>
			</div>
		);
	}

	renderLyrics(){
		if (helpers.isLoading(this.props.load_queue,['genius_'])){
			return (
				<div className="lyrics">
					<div className="body-loader loading">
						<div className="loader"></div>
					</div>
				</div>
			);
		} else if (this.props.track.lyrics){
			return (
				<div className="lyrics">
					<div className="content" dangerouslySetInnerHTML={{__html: this.props.track.lyrics}}></div>
					<div className="origin mid_grey-text">
						Origin: <a href={"https://genius.com"+this.props.track.lyrics_path} target="_blank">{"https://genius.com"+this.props.track.lyrics_path}</a>
					</div>
				</div>
			)
		} else {
			return (
				<ErrorMessage type="not-found" title="Not found">
					<p>Could not find track with URI "{encodeURIComponent(this.props.uri)}"</p>
				</ErrorMessage>
			);
		}
	}

	render(){
		if (helpers.isLoading(this.props.load_queue,['spotify_track/'+helpers.getFromUri('trackid',this.props.uri)])){
			return (
				<div className="body-loader loading">
					<div className="loader"></div>
				</div>
			)
		}

		if (!this.props.track){
			return null
		} else {
			var track = this.props.track;

			// Flatten our simple album so we can inherit artwork
			if (track.album){
				var album = this.props.albums[track.album.uri];

				if (album && album.images){
					track.images = album.images;
				}
			}
		}

		return (
			<div className="view track-view content-wrapper">

				{this.props.slim_mode ? <Header
					icon="music"
					title="Track"
					handleContextMenuTrigger={e => this.handleContextMenu(e)}
					uiActions={this.props.uiActions} /> : null}

				<div className="thumbnail-wrapper">
					<Thumbnail size="large" canZoom images={track.images} />
				</div>

				<div className="title">

					<h1>{track.name}</h1>
					<h2 className="mid_grey-text">
						{track.album && track.album.uri ? <Link to={'/album/'+track.album.uri}>{track.album.name}</Link> : null}
						{track.album && !track.album.uri ? track.album.name : null}
						{!track.album ? "Unknown album" : null}
						&nbsp;by <ArtistSentence artists={track.artists} />
					</h2>

					<ul className="details">
						{!this.props.slim_mode ? <li><Icon type="fontawesome" name={helpers.sourceIcon(this.props.uri)} /></li> : null}
						{track.date ? <li><Dater type="date" data={track.date} /></li> : null}
						{track.explicit ? <li><span className="flag dark">EXPLICIT</span></li> : null}
						<li>
							{track.disc_number ? <span>Disc {track.disc_number}</span> : null}
							{track.disc_number && track.track_number ? <span>, </span> : null}
							{track.track_number ? <span>Track {track.track_number}</span> : null}
						</li>
						{track.duration ? <li><Dater type="length" data={track.duration} /></li> : null}
						{track.popularity ? <li>{track.popularity}% popularity</li> : null}
					</ul>
				</div>

				<div className="actions">
					<button className="button button--primary" onClick={e => this.play()}>Play</button>
					<LastfmLoveButton uri={this.props.uri} artist={(this.props.track.artists ? this.props.track.artists[0].name : null)} track={this.props.track.name} addText="Love" removeText="Unlove" is_loved={this.props.track.userloved} />
					<ContextMenuTrigger onTrigger={e => this.handleContextMenu(e)} />
				</div>

				{!this.props.genius_authorized ? <p className="no-results">Want track lyrics? Authorize Genius under <Link to="/settings/genius" scrollTo="services-menu">Settings</Link>.</p> : null}
				{this.props.genius_authorized ? this.renderLyricsSelector() : null}
				{this.props.genius_authorized ? this.renderLyrics() : null}

			</div>
		)
	}
}

const mapStateToProps = (state, ownProps) => {
	var uri = decodeURIComponent(ownProps.match.params.uri);
	return {
		uri: uri,
		slim_mode: state.ui.slim_mode,
		load_queue: state.ui.load_queue,
		track: (state.core.tracks && state.core.tracks[uri] !== undefined ? state.core.tracks[uri] : false),
		tracks: state.core.tracks,
		artists: state.core.artists,
		albums: state.core.albums,
		spotify_library_albums: state.spotify.library_albums,
		local_library_albums: state.mopidy.library_albums,
		lastfm_authorized: state.lastfm.authorization,
		spotify_authorized: state.spotify.authorization,
		genius_authorized: state.genius.authorization,
		mopidy_connected: state.mopidy.connected
	};
}

const mapDispatchToProps = (dispatch) => {
	return {
		coreActions: bindActionCreators(coreActions, dispatch),
		uiActions: bindActionCreators(uiActions, dispatch),
		mopidyActions: bindActionCreators(mopidyActions, dispatch),
		lastfmActions: bindActionCreators(lastfmActions, dispatch),
		spotifyActions: bindActionCreators(spotifyActions, dispatch),
		geniusActions: bindActionCreators(geniusActions, dispatch)
	}
}

export default connect(mapStateToProps, mapDispatchToProps)(Track)