import discord
from discord.ext import commands
from discord.utils import get
import youtube_dl
import os


# Reading token from text file
def read_token():
    with open("token.txt", "r") as f:
        lines = f.readlines()
        return lines[0].strip()


# Parameters
token = read_token()
prefix = "!"
client = commands.Bot(command_prefix=prefix)


# Play music
@client.command(pass_context=True, aliases=['p', 'pla'])
async def play(ctx, url: str):
    song_there = os.path.isfile("song.mp3")
    try:
        if song_there:
            os.remove("song.mp3")
            print("Removed old song file")
    except PermissionError:
        print("Trying to delete song file, but it's being played")
        await ctx.send("Error")
        return

    await ctx.send("Downloading")
    voice = get(client.voice_clients, guild=ctx.guild)

    ydl_opts = {
        'format': 'bestaudio/best',
        'postprocessors': [{
            'key': 'FFmpegExtractAudio',
            'preferredcodec': 'mp3',
            'preferredquality': '192',
        }],
    }

    with youtube_dl.YoutubeDL(ydl_opts) as ydl:
        print("Downloading song now...\n")
        ydl.download([url])

    for file in os.listdir("./"):
        if file.endswith(".mp3"):
            name = file
            print(f"Renamed File: {file} \n")
            os.rename(file, "song.mp3")

    voice.play(discord.FFmpegPCMAudio("song.mp3"), after=lambda e: print(f"{name} has finished playing"))
    voice.source = discord.PCMVolumeTransformer(voice.source)
    voice.source.volume = 0.07

    nname = name.rsplit("-", 2)
    await ctx.send(f"Playing: {nname}")
    print("Playing\n")


# Adding bot to the channel
@client.command(pass_context=True)
async def join(ctx):
    if "Administrator" in [role.name for role in ctx.author.roles]:
        channel = ctx.message.author.voice.channel
        if ctx.voice_client is not None:
            return await ctx.voice_client.move_to(channel)
        await channel.connect()

# Bot leaves from the channel
@client.command(pass_context=True)
async def leave(ctx):
    if "Administrator" in [role.name for role in ctx.author.roles]:
        await ctx.voice_client.disconnect()

# Shows number of users
@client.command()
async def users(message):
    id = client.get_guild(589688689597087764)
    await message.channel.send(f"""Number of members : {id.member_count}""")

# Shows available commands
@client.command(pass_context=True)
async def commands(message):
    if "Administrator" in [role.name for role in message.author.roles]:
        embed = discord.Embed()
        embed.add_field(name="!users", value="Shows number of memebers")
        await message.channel.send(content=None, embed=embed)
    else:
        print("The user tried to use Admin's Command!")

# Checking Bot Status
@client.event
async def on_ready():
    print("Bot is ready...")

# Actions after member joining
@client.event
async def on_member_join(member):
    await client.send_message(f"""Welcome to the server,  {member.mention} !""")


client.run(token)