import threading
import time
import mido
from mido import MidiFile

from StoppableThread import StoppableThread
from Requestor import Requestor

class MediaPlayer:

    def __init__(self, host, port):
        self.requestor = Requestor(host, port)
        self.song_thread = None
        self.output = mido.open_output()

    def request_song(self, song_name):
        bytes_song = self.requestor.getSong(song_name)

        with open('received_song.mid', 'wb') as file:
            file.write(bytes_song)

        if self.song_thread is not None and self.song_thread.is_alive():
            self.song_thread.stop()

        self.song_thread = StoppableThread(target=self.play_song, args=('received_song.mid',))
        self.song_thread.start()

    def play_song(self, song_path):
        mid = MidiFile(song_path)
        try:
            for msg in mid.play():
                if threading.current_thread().stopped():
                    break

                self.output.send(msg)

        except Exception as e:
            print(e)

        finally:
            self.output.reset()

    def stop_song(self):
        if self.song_thread is not None and self.song_thread.is_alive():
            self.song_thread.stop()