#!/usr/bin/python3

import os

import pygame.mixer
from pydub import AudioSegment
from pydub.effects import normalize
import io
from pygame import mixer
from .track import Track


class Player:
    def __init__(self, file_paths: list=[]):
        pygame.mixer.init()
        self.mixer = mixer
        self.mixer.music.set_endevent()

        self.playing = False
        self.paused = False

        if not file_paths:
            pass
            # loading of last opened files will be implemented in the future

        else:
            self.current_playlist = self.load_tracks(file_paths)

        if self.current_playlist:
            self.playing_track = self.current_playlist[0]
            self.current_playlist_index = 0

        else:
            self.playing_track = None
            self.current_playlist_index = 0

    def load_tracks(self, track_paths: list[str]):
        """
        Load tracks from list of paths.
        """

        tracks = []

        for track_path in track_paths:
            if os.path.isfile(track_path):
                tracks.append(Track(track_path, True))

        return tracks

    def track_finished(self):
        self.current_playlist_index += 1
        self.playing_track = self.current_playlist[self.current_playlist_index]

        self.playing_track.sound.play()

    def skip_current(self):
        self.mixer.stop()
        self.track_finished()

    def previous_track(self):
        if self.current_playlist_index > 0:
            self.mixer.stop()

            self.current_playlist_index -= 1
            self.playing_track = self.current_playlist[self.current_playlist_index]

            self.playing_track.sound.play()

    def toggle_playing(self):
        if self.playing and self.paused:
            self.mixer.pause()
            self.paused = False

        elif self.playing:
            self.mixer.unpause()
            self.paused = True

        else:
            self.playing_track.sound.play()
            self.paused = False
            self.playing = True

    def stop(self):
        self.mixer.stop()
        self.playing = False