#!/usr/bin/env python
# encoding: utf-8

import os
import discord
from discord.ext import commands
from discord.ext import tasks
from PIL import Image, ImageSequence
import string


def wheres_marsey(message_text): #returns list of potential marsey names
    marsey_names = []
    message_text = message_text.lower().split('!') #convert message to all lowercase and checks for "!"
    for marsey_name in message_text:
        marsey_name = marsey_name.translate(str.maketrans('', '', string.punctuation)) #strip punctuation
        marsey_name = marsey_name.split(' ')
        marsey_names.append(marsey_name[0]) #only look for first word afer "!"
    return [x for x in marsey_names[1:] if x] #ignore empty strings


def is_animated(file_path): #check if webp is animated or static
    try:
        media = Image.open(file_path)
        Index = 0
        for Frame in ImageSequence.Iterator(media): #check number of frames
            Index += 1
        if Index > 1: #if more than one frame return True
            return True
        else:
            return False
    except:
        return False

def webp2gif(abs_media_path): #convert webp to gif
    media = Image.open(abs_media_path) #path of webp file
    media.info.pop('background', None)
    abs_media_path = abs_media_path[:-4]+'gif' #change the path from webp to gif
    media.save(abs_media_path, 'gif', optimize=False, save_all=True, disposal=2) #temp save a gif file (there might be a better way but i lazy :marseyteehee:)
    return abs_media_path #return gif path


client = commands.Bot(command_prefix = '!')

@client.event #print ready in command line to verify bot initiation
async def on_ready():
    print('ready')

@client.event
async def on_message(message): #bot reads every message in server

    message_text = message.content

    marsey_names = wheres_marsey(message_text) #make list of called marseys

    marsey_queue = [] #empty list of marseys to send

    for marsey_name in marsey_names:

            #find directory of marsey
            bot_dir = os.path.dirname(__file__)
            rel_marsey_path = "emojis/"+marsey_name+".webp"
            abs_marsey_path = os.path.join(bot_dir, rel_marsey_path)

            flag = 0 #flag used in webp to gif file conversion

            if os.path.isfile(abs_marsey_path): #only continue if marsey exists

                #if marsey is animated, turn it into a gif
                if is_animated(abs_marsey_path) is True:
                    abs_marsey_path = webp2gif(abs_marsey_path)
                    flag = 1 #flag for deleting temp gif file after sent

                #open file and add it to send queue
                with open(abs_marsey_path, 'rb') as f:
                    marsey_queue.append(discord.File(f))

                #delete temp file
                if flag == 1:
                    os.remove(abs_marsey_path)
                    flag = 0 #reset flag

    if marsey_queue: #only send marsey(s)
        await message.channel.send(files=marsey_queue)

#token
with open('discord_token.txt') as f:
	discord_token = f.readline()
client.run(discord_token)