app.py

from flask import Flask, render_template, redirect, url_for,request
import random

app = Flask(__name__)

app.secret_key='dev'

songs = [
    { 'id':'1','img':'onmyway.jpg','title': 'Alan Walker, Sabrina Carpenter & Farruko  - On My Way','path':'Alan Walker, Sabrina Carpenter & Farruko  - On My Way.mp3'},
    { 'id':'2','img':'time.png','title': 'Hans Zimmer & Alan Walker - Time (Official Remix)','path':'Hans Zimmer & Alan Walker - Time (Official Remix).mp3' },
    { 'id':'3','img':'blank.jpg','title': 'Disfigure - Blank _ Melodic Dubstep _ NCS ','path':'Disfigure - Blank _ Melodic Dubstep _ NCS - Copyright Free Music.mp3' },
    { 'id':'4','img':'spectre.jpg','title': 'Alan Walker - Faded.mp3 ','path':'Alan Walker - Faded.mp3' },
    { 'id':'5','img':'spectre.jpg','title': 'Alan Walker - The Spectre','path':'Alan Walker - The Spectre.mp3' },
    { 'id':'6','img':'ignite.jpg','title': 'Alan Walker & K-391 - Ignite (Lyrics) ft. Julie Bergan & Seungri','path':'Alan Walker & K-391 - Ignite (Lyrics) ft. Julie Bergan & Seungri.mp3' },
    { 'id':'7','img':'dreaming.jpg','title': 'Metro Boomin, A$AP Rocky, Roisee - Am I Dreaming (Visualizer)','path':'Metro Boomin, A$AP Rocky, Roisee - Am I Dreaming (Visualizer).mp3' },
    { 'id':'8','img':'headlight.jpg','title': 'Alok & Alan Walker - Headlight (Fajar Asia Remix)','path':'Alok & Alan Walker - Headlight (Fajar Asia Remix).mp3' },
    { 'id':'9','img':'endless.jpg','title': 'Alan Walker & Hernandz - Endless Sea  (Official Music Video)','path':'Alan Walker & Hernandz - Endless Sea  (Official Music Video).mp3' },
    { 'id':'10','img':'spectre.jpg','title': 'Alan Walker - Alone','path':'Alan Walker - Alone.mp3' },
    { 'id':'11','img':'thiruchitrambalam-tamil-2022.webp','title': 'Thenmozhi - Dhanush','path':'Thenmozhi - Dhanush.mp3' }
]

current_playlists=[]

@app.route('/',methods=['GET', 'POST'])
def index():
    # change the original return statement you wrote to the one below
    return render_template('home.html', msg="hello",playlists=songs,current_playlists=current_playlists)


@app.route('/addplaylist/<string:id>',methods=['GET', 'POST'])
def addplaylist(id):
    if request.method=='POST':
        for i in songs:
            if(id==i['id']):
                current_playlists.append(i)
                songs.remove(i)

        # change the original return statement you wrote to the one below
        return redirect(url_for('index'))

@app.route('/removeplaylist/<string:id>',methods=['GET', 'POST'])
def removeplaylist(id):
    if request.method=='POST':
        for i in current_playlists:
            if(id==i['id']):
                songs.append(i)
                current_playlists.remove(i)
        # change the original return statement you wrote to the one below
        return redirect(url_for('index'))

@app.route('/play/<int:id>',methods=['GET', 'POST'])
def play(id):
        if id==1:
            copy_playlist = random.sample(current_playlists, len(current_playlists))
            return render_template('play.html',songs=copy_playlist)
        return render_template('play.html',songs=current_playlists)


if __name__ == '__main__':
    app.run(debug=True)