import React, { PropTypes } from 'react';
import { connect } from 'react-redux';
import { bindActionCreators } from 'redux';
import { Redirect } from 'react-router';
import { Route, Switch } from 'react-router-dom';

import ErrorMessage from '../components/ErrorMessage';
import Link from '../components/Link';
import LazyLoadListener from '../components/LazyLoadListener'
import Header from '../components/Header'
import TrackList from '../components/TrackList'
import AlbumGrid from '../components/AlbumGrid'
import Thumbnail from '../components/Thumbnail'
import Parallax from '../components/Parallax'
import ArtistGrid from '../components/ArtistGrid'
import RelatedArtists from '../components/RelatedArtists'
import FollowButton from '../components/Fields/FollowButton'
import ContextMenuTrigger from '../components/ContextMenuTrigger'
import DropdownField from '../components/Fields/DropdownField'
import Icon from '../components/Icon'

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 pusherActions from '../services/pusher/actions'
import * as lastfmActions from '../services/lastfm/actions'
import * as spotifyActions from '../services/spotify/actions'

class Artist extends React.Component{

	constructor(props){
		super(props)
	}

	componentDidMount(){
		this.setWindowTitle();
		this.props.coreActions.loadArtist(this.props.uri);
	}

	componentWillReceiveProps(nextProps){

		if (nextProps.uri != this.props.uri){
			this.props.coreActions.loadArtist(nextProps.uri);

		} else if (!this.props.mopidy_connected && nextProps.mopidy_connected){
			if (helpers.uriSource(this.props.uri ) != 'spotify'){
				this.props.coreActions.loadArtist(nextProps.uri);
			}
		}

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

		if (this.props.uri !== nextProps.uri && nextProps.artist){
			this.setWindowTitle(nextProps.artist);
		}
	}

	setWindowTitle(artist = this.props.artist){
		if (artist){
			this.props.uiActions.setWindowTitle(artist.name+" (artist)");
		} else{
			this.props.uiActions.setWindowTitle("Artist");
		}
	}

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

	loadMore(){
		this.props.spotifyActions.getMore(
			this.props.artist.albums_more,
			{
				parent_type: 'artist',
				parent_key: this.props.uri,
				records_type: 'album'
			}
		);
	}

	inLibrary(){
		var library = helpers.uriSource(this.props.uri)+'_library_artists'
		return (this.props[library] && this.props[library].indexOf(this.props.uri) > -1)
	}

	setSort(value){
		var reverse = false
		if (this.props.sort == value ) reverse = !this.props.sort_reverse

		var data = {
			artist_albums_sort_reverse: reverse,
			artist_albums_sort: value
		}
		this.props.uiActions.set(data)
	}

	setFilter(value){
		this.props.uiActions.set({artist_albums_filter: value});
	}

	renderOverview(){
		var artist = helpers.collate(
			this.props.artist, 
			{
				artists: this.props.artists,
				albums: this.props.albums,
				tracks: this.props.tracks
			}
		);

		if (this.props.sort && artist.albums){
			artist.albums = helpers.sortItems(artist.albums, this.props.sort, this.props.sort_reverse);
		}

		if (this.props.filter && artist.albums){
			artist.albums = helpers.applyFilter('type', this.props.filter, artist.albums);
		}

		var sort_options = [
			{
				value: null,
				label: 'Default'
			},
			{
				value: 'name',
				label: 'Name'
			},
			{
				value: 'date',
				label: 'Date'
			},
			{
				value: 'tracks_total',
				label: 'Tracks'
			}
		];

		var filter_options = [
			{
				value: null,
				label: 'All'
			},
			{
				value: 'album',
				label: 'Albums'
			},
			{
				value: 'single',
				label: 'Singles'
			},
			{
				value: 'compilation',
				label: 'Compilations'
			}
		];

		if (!artist.tracks_uris || (artist.tracks_uris && !artist.tracks) || (artist.tracks_uris.length !== artist.tracks.length)){
			var is_loading_tracks = true;
		} else {
			var is_loading_tracks = false;
		}

		return (
			<div className="body overview">
				<div className={"top-tracks col col--w"+(artist.related_artists && artist.related_artists.length > 0 ? "70" : "100")}>
					{artist.tracks ? <h4>Top tracks</h4> : null}
					<div className="list-wrapper">
						<TrackList className="artist-track-list" uri={artist.uri} tracks={artist.tracks} />
						<LazyLoadListener showLoader={is_loading_tracks} />
					</div>
				</div>

				<div className="col col--w5"></div>

				{artist.related_artists && artist.related_artists.length > 0 ? <div className="col col--w25 related-artists"><h4>Related artists</h4><div className="list-wrapper"><RelatedArtists artists={artist.related_artists.slice(0,6)} /></div><Link to={'/artist/'+encodeURIComponent(this.props.uri)+'/related-artists'} scrollTo="sub-views-menu" className="button button--default">All related artists</Link></div> : null}

				<div className="cf"></div>

				{artist.albums ? <div className="albums">
					<h4>
						Albums
						<DropdownField
							icon="sort"
							name="Sort"
							value={this.props.sort}
							options={sort_options}
							selected_icon={this.props.sort ? (this.props.sort_reverse ? 'keyboard_arrow_up' : 'keyboard_arrow_down') : null}
							handleChange={value => {this.setSort(value); this.props.uiActions.hideContextMenu() }}
						/>
						<DropdownField
							icon="filter_list"
							name="Filter"
							value={this.props.filter}
							options={filter_options}
							handleChange={value => {this.setFilter(value); this.props.uiActions.hideContextMenu() }}
						/>
					</h4>

					<section className="grid-wrapper no-top-padding">
						<AlbumGrid albums={artist.albums} />
						<LazyLoadListener
							loadKey={artist.albums_more} 
							showLoader={artist.albums_more} 
							loadMore={() => this.loadMore()} 
						/>
					</section>
				</div> : null}
			</div>
		);
	}

	renderRelatedArtists(){
		var artist = helpers.collate(
			this.props.artist, 
			{
				artists: this.props.artists
			}
		);

		return (
			<div className="body related-artists">
				<section className="grid-wrapper no-top-padding">
					<ArtistGrid artists={artist.related_artists} />
				</section>
			</div>
		)
	}

	renderAbout(){
		var artist = helpers.collate(
			this.props.artist, 
			{
				artists: this.props.artists
			}
		);

		var thumbnails = [];
		if (artist.images && artist.images.length > 0){
			for (var images of artist.images){

				// Capture potential 'null' images
				// TODO: Prevent these from existing in the first place
				if (images.huge){
					thumbnails.push(
						<div className="tile thumbnail-wrapper" key={images.huge}>
							<Thumbnail size="huge" canZoom images={images} />
						</div>
					);
				}
			}
		}

		return (
			<div className="body about">

				<div className="col col--w40 tiles artist-stats">
					{thumbnails}
					{artist.followers ? <div className="tile"><span className="content"><Icon type="fontawesome" name="users" />{artist.followers.toLocaleString()} followers</span></div> : null}
					{artist.popularity ? <div className="tile"><span className="content"><Icon type="fontawesome" name="fire" />{artist.popularity }% popularity</span></div> : null}
					{artist.listeners ? <div className="tile"><span className="content"><Icon type="fontawesome" name="headphones" />{ artist.listeners.toLocaleString() } listeners</span></div> : null }
				</div>

				<div className="col col--w60 biography">
					<section>
						{ artist.biography ? <div className="biography-text"><p>{artist.biography}</p><br />
						<div className="mid_grey-text">Published: { artist.biography_publish_date }</div>
						<div className="mid_grey-text">Origin: <a href={ artist.biography_link } target="_blank">{ artist.biography_link }</a></div></div> : null }
					</section>
				</div>
			</div>
		);
	}

	render(){
		var scheme = helpers.uriSource(this.props.uri);

		if (!this.props.artist){
			if (helpers.isLoading(this.props.load_queue,['spotify_artists/'+helpers.getFromUri('artistid',this.props.uri), 'lastfm_method=artist.getInfo'])){
				return (
					<div className="body-loader loading">
						<div className="loader"></div>
					</div>
				)
			} else {
				return (
					<ErrorMessage type="not-found" title="Not found">
						<p>Could not find artist with URI "{encodeURIComponent(this.props.uri)}"</p>
					</ErrorMessage>
				);
			}
		}

		if (this.props.artist && this.props.artist.images && this.props.artist.images.length > 0){
			var image = this.props.artist.images[0].huge;
		} else {
			var image = null;
		}

		var is_spotify = (scheme == 'spotify')

		if (this.props.artist.tracks_uris && this.props.artist.tracks_uris.length > 0){
			var uris_to_play = this.props.artist.tracks_uris
		} else {
			var uris_to_play = this.props.artist.albums_uris
		}

		return (
			<div className="view artist-view preserve-3d">
				<div className="intro preserve-3d">

					<Parallax image={image} fixedHeight />

					<div className="liner">
						<h1>{this.props.artist ? this.props.artist.name : null}</h1>
						<div className="actions">
							<button className="button button--primary" onClick={e => this.props.mopidyActions.playURIs(uris_to_play, this.props.artist.uri)}>Play</button>
							{is_spotify ? <FollowButton uri={this.props.uri} removeText="Remove from library" addText="Add to library" is_following={this.inLibrary()} /> : null}
							<ContextMenuTrigger className="white" onTrigger={e => this.handleContextMenu(e)} />
						</div>
						<div className="sub-views" id="sub-views-menu">
							<Link 
								exact
								history={this.props.history} 
								activeClassName="sub-views__option--active"
								className="sub-views__option"
								to={'/artist/'+encodeURIComponent(this.props.uri)}
								scrollTo="sub-views-menu">
									<h4>Overview</h4>
							</Link>
							{this.props.artist.related_artists_uris ? <Link
								exact
								history={this.props.history} 
								activeClassName="sub-views__option--active"
								className="sub-views__option"
								to={'/artist/'+encodeURIComponent(this.props.uri)+'/related-artists'}
								scrollTo="sub-views-menu">
									<h4>Related artists</h4>
							</Link> : null}
							<Link
								exact
								history={this.props.history} 
								activeClassName="sub-views__option--active"
								className="sub-views__option"
								to={'/artist/'+encodeURIComponent(this.props.uri)+'/about'}
								scrollTo="sub-views-menu">
									<h4>About</h4>
							</Link>
						</div>
					</div>
				</div>
				<div className="content-wrapper">
					<Switch>
						<Route exact path="/artist/:id/related-artists">
							{this.renderRelatedArtists()}
						</Route>
						<Route exact path="/artist/:id/about">
							{this.renderAbout()}
						</Route>
						<Route exact path="/artist/:id">
							{this.renderOverview()}
						</Route>
					</Switch>
				</div>
			</div>
		);
	}
}

const mapStateToProps = (state, ownProps) => {
	var uri = decodeURIComponent(ownProps.match.params.uri);
	return {
		uri: uri,
		theme: state.ui.theme,
		slim_mode: state.ui.slim_mode,
		load_queue: state.ui.load_queue,
		artist: (state.core.artists[uri] !== undefined ? state.core.artists[uri] : false),
		tracks: state.core.tracks,
		artists: state.core.artists,
		spotify_library_artists: state.spotify.library_artists,
		local_library_artists: state.mopidy.library_artists,
		albums: (state.core.albums ? state.core.albums : []),
		filter: (state.ui.artist_albums_filter ? state.ui.artist_albums_filter : null),
		sort: (state.ui.artist_albums_sort ? state.ui.artist_albums_sort : null),
		sort_reverse: (state.ui.artist_albums_sort_reverse ? true : false),
		spotify_authorized: state.spotify.authorization,
		mopidy_connected: state.mopidy.connected
	}
}

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

export default connect(mapStateToProps, mapDispatchToProps)(Artist)