main.py

import tkinter
from mutagen.easyid3 import EasyID3
import pygame
from tkinter.filedialog import askopenfilenames


class FrameApp(tkinter.Frame):
    def __init__(self, master):
        super(FrameApp, self).__init__(master)

        self.grid()
        self.paused = False
        self.playlist = list()
        self.actual_song = 0

        self.b1 = tkinter.Button(
            self,
            text="PLAY SONG",
            command=self.play_music,
            bg="AntiqueWhite1",
            width=40,
        )
        self.b1.grid(row=2, column=0)

        self.b2 = tkinter.Button(
            self,
            text="PREVIOUS SONG",
            command=self.previous_song,
            bg="AntiqueWhite1",
            width=40,
        )
        self.b2.grid(row=4, column=0)

        self.b3 = tkinter.Button(
            self,
            text="PAUSE/UNPAUSE",
            command=self.toggle,
            bg="AntiqueWhite1",
            width=40,
        )
        self.b3.grid(row=3, column=0)

        self.b4 = tkinter.Button(
            self, text="NEXT SONG", command=self.next_song, bg="AntiqueWhite1", width=40
        )
        self.b4.grid(row=5, column=0)

        self.b5 = tkinter.Button(
            self,
            text="ADD TO PLAYLIST",
            command=self.add_to_list,
            bg="AntiqueWhite1",
            width=40,
        )
        self.b5.grid(row=1, column=0)

        self.label1 = tkinter.Label(
            self, fg="Black", font=("Helvetica 12 bold italic", 10), bg="ivory2"
        )
        self.label1.grid(row=6, column=0)

        self.output = tkinter.Text(self, wrap=tkinter.WORD, width=60)
        self.output.grid(row=8, column=0)

        self.SONG_END = pygame.USEREVENT + 1

    def add_to_list(self) -> None:
        """
        Opens window to browse data on disk and adds selected songs to play list
        """
        directory = askopenfilenames()
        for song_dir in directory:
            print(song_dir)
            self.playlist.append(song_dir)
        self.output.delete(0.0, tkinter.END)

        for key, item in enumerate(self.playlist):
            song = EasyID3(item)
            song_data = (
                str(key + 1) + " : " + song["title"][0] + " - " + song["artist"][0]
            )
            self.output.insert(tkinter.END, song_data + "\n")

    def song_data(self) -> str:
        """
        Makes string of current playing song data over the text box
        """
        song = EasyID3(self.playlist[self.actual_song])
        return f"Now playing: {self.actual_song + 1}{str(song['title'])}-{str(song['artist'])}"

    def play_music(self) -> None:
        """
        Loads current song, plays it, sets event on song finish
        """
        directory = self.playlist[self.actual_song]
        pygame.mixer.music.load(directory)
        pygame.mixer.music.play(1, 0.0)
        pygame.mixer.music.set_endevent(self.SONG_END)
        self.paused = False
        self.label1["text"] = self.song_data()

    def check_music(self) -> None:
        """
        Listens to END_MUSIC event and triggers next song to play if current
        song has finished
        """
        for event in pygame.event.get():
            if event.type == self.SONG_END:
                self.next_song()

    def toggle(self) -> None:
        """
        Toggles current song
        """
        if self.paused:
            pygame.mixer.music.unpause()
            self.paused = False
        elif not self.paused:
            pygame.mixer.music.pause()
            self.paused = True

    def get_next_song(self) -> int:
        """
        Gets next song number on playlist
        """
        if self.actual_song + 2 <= len(self.playlist):
            return self.actual_song + 1
        else:
            return 0

    def next_song(self) -> None:
        """
        Plays next song
        """
        self.actual_song = self.get_next_song()
        self.play_music()

    def get_previous_song(self) -> int:
        """
        Gets previous song number on playlist and returns it
        """
        if self.actual_song - 1 >= 0:
            return self.actual_song - 1
        else:
            return len(self.playlist) - 1

    def previous_song(self) -> None:
        """
        Plays prevoius song
        """
        self.actual_song = self.get_previous_song()
        self.play_music()


pygame.init()
window = tkinter.Tk()

window.geometry("500x500")
window.title("MP3 Music Player")


app = FrameApp(window)

if __name__ == "__main__":
    while True:
        app.check_music()
        app.update()