import os
from urllib.parse import urlparse
import urllib
from unidecode import unidecode
import subprocess
import glob
import shutil
import emoji
import re
from functools import reduce
import time

LIMIT = 20


def extractURL():
    with open("external_links.txt", "r") as file:
        url_list = file.read().splitlines()
    return url_list


def writeToText(text):
    with open("converted_links.txt", "a", encoding="utf-8", errors="ignore") as f:
        f.write(f"{text}\n")


def replaceString(string):
    repls = (".", " "), ("()", "")
    return reduce(lambda a, kv: a.replace(*kv), repls, string)


def removeYearString(string):
    pattern = r"\d{4}"
    return re.sub(pattern, "", string)


def checkURLConverted(value, status):
    if status:
        emojitype = emoji.emojize(":check_mark_button:")
        text = f"{value} - Stato : {emojitype} Convertito"
    else:
        emojitype = emoji.emojize(":cross_mark:")
        text = f"{value} - Stato : {emojitype} Non Convertito {emojitype}"
    writeToText(text)


def convertMP4toHLSFFmpeg(url,folder,subfolder):
    limitCounter = 1
    if (limitCounter % LIMIT) == 0:
        time.sleep(3600)

    # Encode URL
    encoded_url = urllib.parse.quote(url)

    # Extract the filename from the URL
    filename = os.path.basename(urlparse(encoded_url).path)

    # Remove the file extension from the filename
    extractFileName = os.path.splitext(filename)[0]

    # Decode Folder in More Human Friendly Name
    decode_filename = urllib.parse.unquote(extractFileName)

    decode_filename = urllib.parse.unquote(decode_filename)

    decode_filename = unidecode(decode_filename.replace(".", " "))

    convertedFileName = decode_filename.replace(" ", "")

    convertedFileName = removeYearString(convertedFileName)

    convertedFileName = replaceString(convertedFileName)

    try:

        ffmpeg_command = f"ffmpeg -i {url} -c:v copy -c:a aac -start_number 0 -hls_time 10 -hls_list_size 0 -f hls '{convertedFileName}.m3u8'"
    
        subprocess.call(ffmpeg_command, shell=True)

        os.makedirs(folder)

        os.makedirs(os.path.join(folder, subfolder))

        ts_files = glob.glob(f"/var/www/{convertedFileName}*.ts")
        m3u8_files = glob.glob(f"/var/www/{convertedFileName}*.m3u8")
        vtt_files = glob.glob(f"/var/www/{convertedFileName}*.vtt")
        all_files = ts_files + m3u8_files + vtt_files
        for file in all_files:
            shutil.move(file, subfolder)
        checkURLConverted(folder, status=True)
        limitCounter += 1
    except Exception:
        checkURLConverted(folder, status=False)


if __name__ == "__main__":
    convertMP4toHLSFFmpeg()