from typing import List
from discord import Embed, Message, TextChannel
from Music.VulkanBot import VulkanBot
from Parallelism.ProcessInfo import ProcessInfo
from Config.Configs import VConfigs
from Config.Messages import Messages
from Music.Song import Song
from Config.Embeds import VEmbeds
from UI.Views.PlayerView import PlayerView


class MessagesController:
    def __init__(self, bot: VulkanBot) -> None:
        self.__bot = bot
        self.__previousMessages = []
        self.__configs = VConfigs()
        self.__messages = Messages()
        self.__embeds = VEmbeds()

    async def sendNowPlaying(self, processInfo: ProcessInfo, song: Song) -> None:
        # Get the lock of the playlist
        playlist = processInfo.getPlaylist()
        if playlist.isLoopingOne():
            title = self.__messages.ONE_SONG_LOOPING
        else:
            title = self.__messages.SONG_PLAYING

        # Create View and Embed
        embed = self.__embeds.SONG_INFO(song.info, title)
        view = PlayerView(self.__bot)
        channel = processInfo.getTextChannel()
        # Delete the previous and send the message
        await self.__deletePreviousNPMessages()
        await channel.send(embed=embed, view=view)

        # Get the sended message
        sendedMessage = await self.__getSendedMessage(channel)
        # Set the message witch contains the view
        view.set_message(message=sendedMessage)
        self.__previousMessages.append(sendedMessage)

    async def __deletePreviousNPMessages(self) -> None:
        for message in self.__previousMessages:
            try:
                await message.delete()
            except:
                pass
        self.__previousMessages.clear()

    async def __getSendedMessage(self, channel: TextChannel) -> Message:
        stringToIdentify = 'Uploader:'
        last_messages: List[Message] = await channel.history(limit=5).flatten()

        for message in last_messages:
            try:
                if message.author == self.__bot.user:
                    if len(message.embeds) > 0:
                        embed: Embed = message.embeds[0]
                        if len(embed.fields) > 0:
                            if embed.fields[0].name == stringToIdentify:
                                return message

            except Exception as e:
                print(f'DEVELOPER NOTE -> Error cleaning messages {e}')
                continue