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views.py
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views.py
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import requests
from functools import wraps
import json
from flask import Flask, request, redirect, render_template, flash, session,jsonify
import datetime
from jinja2 import StrictUndefined
from flask_sqlalchemy import SQLAlchemy
import os
app = Flask(__name__)
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
app.config['SQLALCHEMY_DATABASE_URI'] = os.environ['DATABASE_URL']
app.secret_key = os.environ['Secret_Key']
app.jinja_env.undefinded = StrictUndefined
db = SQLAlchemy(app)
from model import User, Track, UserTrack
import spotify,mood
from settings import *
def requires_auth(f):
@wraps(f)
def decorated(*args, **kwargs):
if 'access_token' not in session:
return redirect('/')
return f(*args, **kwargs)
return decorated
@app.route('/')
def homepage():
""" Render welcome page with login button """
return render_template('homepage.html')
@app.route('/spotify-auth')
def authorization():
""" Spotify Authorization Page """
auth_url = spotify.get_user_authorization()
return redirect(auth_url)
@app.route('/callback/')
def callback_handling():
if 'access_token' not in session:
response_data = spotify.get_tokens()
session['access_token'] = response_data['access_token']
session['refresh_token'] = response_data['refresh_token']
expires = datetime.datetime.now() + datetime.timedelta(seconds=response_data['expires_in'])
session['access_token_expires'] = expires
auth_header = spotify.get_auth_header(session.get('access_token'))
username = spotify.get_user_id(auth_header)
session['user'] = username
user = db.session.query(User).filter(User.id == username).all()
if not user:
new_user = User(id=username, refresh_token=response_data['refresh_token'])
db.session.add(new_user)
db.session.commit()
elif session['access_token_expires'] < datetime.datetime.now():
response_data = spotify.get_refreshed_token()
session['access_token'] = response_data['access_token']
expires = datetime.datetime.now() + datetime.timedelta(seconds=response_data['expires_in'])
session['access_token_expires'] = expires
return redirect('/mood')
@app.route('/about')
def about():
""" About page with description about app """
return render_template('about.html')
@app.route('/mood')
@requires_auth
def get_user_mood():
""" Get user's current mood.
Add User to database and save user's artists to session. """
auth_header = spotify.get_auth_header(session.get('access_token'))
top_artists = mood.get_top_artists(auth_header, 25)
# if user is new thier aill be no new data based on previous activtiy
if len(top_artists) == 0:
top_artists = mood.get_artists_for_new_user(auth_header)
artists = mood.get_related_artists(auth_header, top_artists)
session['artists'] = artists
return render_template('main.html')
@app.route('/camera')
@requires_auth
def open_camera():
return render_template('mood.html')
@app.route('/playlist')
@requires_auth
def playlist_created():
""" Create playlist """
token = session.get('access_token')
username = session.get('user')
auth_header = spotify.get_auth_header(token)
name = request.args.get('name')
user_mood = int(request.args.get('mood'))
session['name'] = name
user = db.session.query(User).filter(User.id == username).one()
user_tracks = user.tracks
if not user_tracks:
try:
user_artists = session.get('artists')
finally:
top_tracks = mood.get_top_tracks(auth_header, user_artists)
cluster = mood.cluster_ids(top_tracks)
user_tracks = mood.add_and_get_user_tracks(auth_header, cluster)
audio_feat = mood.standardize_audio_features(user_tracks)
playlist_tracks = mood.select_tracks(audio_feat, user_mood)
playlist_id = mood.create_playlist(auth_header, username, playlist_tracks, user_mood, name)
playlist_data = mood.get_track_detail_from_playlist(auth_header,playlist_id)
session['spotify'] = playlist_id
playlist_iframe_href = "https://open.spotify.com/embed/playlist/" + playlist_id
return render_template('playlist.html', playlist_iframe_href=playlist_iframe_href,header="Generated Playlist",playlist =playlist_data )
@app.route('/playlist-created')
@requires_auth
def playlist_created_by_user():
""" Create playlist """
token = session.get('access_token')
auth_header = spotify.get_auth_header(token)
playlist = mood.recently_played(auth_header)
return render_template('recent_playlist.html', playlist = playlist, header="Your Top Playlist")
@app.route('/logout')
def logout():
""" Logged out and session cleared """
username = session.get('user')
user_track_exist = db.session.query(UserTrack).filter(UserTrack.user_id == username).all()
for user_track in user_track_exist:
db.session.delete(user_track)
db.session.commit()
users= db.session.query(User).filter(User.id == username).all()
for user in users :
db.session.delete(user)
db.session.commit()
session.clear()
return redirect('/')