import re
import subprocess
import sys
from pathlib import Path
import os
output_folder_name = "/out_sub_audio/"
regex_subtitle = re.compile("Stream #0:\d+(\(\w*\))?: Subtitle:.*")
regex_audio = re.compile("Stream #0:\d(\(\w*\))?: Audio:.*")
nr_files = 0
files_processed = []
droppedFile = sys.argv[1]
droppedName = Path(droppedFile).name
originalfiles = sys.orig_argv[2:]


# To fix I need to create symlinks to files with long paths and use the links instead. And then remove said symlinks once


#droppedFile= ['X:\\test\\longpathtest\\longerpathlongerpathlongerpathlongerpathlongerpathlongerpathlongerpath\\longpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpath\\fourteen\\[Kira-Fansub]_Choujuushin Gravion_Episode 06_(BD 1280x960 h264 JP AAC EN AAC) [E7D92968].mkv', '', ' X:\\test\\longpathtest\\longerpathlongerpathlongerpathlongerpathlongerpathlongerpathlongerpath\\longpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpathlongpath\\fourteen\\[Kira-Fansub]_Choujuushin Gravion_Episode 09_(BD 1280x960 h264 JP AAC EN AAC) [A2727604].mkv']
#originalfiles = droppedFile

print(droppedFile)
print()
print()
print("printing original: ", originalfiles)

joined = (' '.join(originalfiles))
print("printing joined: ", joined)
listed = re.split(r'([A-Z]:.+?)(?=[A-Z]:)', joined)
listed = list(filter(None, listed))


print("printing listed: ", listed)

sym_target = "E:/Projects/python/ffmpeg_collection/temp/test/"
sym_location = os.path.split(listed[0])
print("sym locations: ", sym_location)

#os.symlink(sym_location[0], sym_target ,target_is_directory=True)
#sym_list = []
#for each in listed:
#    r = tuple(os.path.split(each))
#    name = tuple(r[1])
#    print("printing R", r[1])
#    path_used = tuple(sym_target)
#    print(type(name))
#    print(type(path_used))
#    join_before = (''.join(path_used + name ))
#    sym_list.append(join_before)
#    print("printing symlist: ", sym_list)




#get path of script location and remove the tail
head_tail = os.path.split(sys.argv[0])
output_path = head_tail[0]
del sys.argv[0]

#check if output folder exists, otherwise create it
isExist = os.path.exists(output_path+output_folder_name)
if not isExist:
    os.makedirs(output_path+output_folder_name)

#droppedFile = "test.mkv"


for i, file in enumerate(listed):
    arg_list = '.\\ffprobe.exe -i "{file}"'.format(file=file)
    print(arg_list)

    cmd = subprocess.Popen(["powershell.exe", arg_list], stdout=subprocess.PIPE, stderr=subprocess.PIPE, encoding='UTF-8')
        
    subprocess_err = cmd.communicate()[1]
    print(subprocess_err)
    
    print("file", i+1,":", Path(file).name)

    for r, match in enumerate(regex_audio.finditer(subprocess_err)):
        print("Audio Track", r,": ", match.group(0))
    for r, match in enumerate(regex_subtitle.finditer(subprocess_err)):
        print("Subtitle Track", r,": ", match.group(0))
    print('\n')


x = (int(x) for x in input ("Enter audio tracks to keep: ").split())
audio_track = "".join(" -map 0:a:{}".format(y) for y in x)


z = (int(z) for z in input ("Enter subtitle tracks to keep: ").split())
subtitle_track = "".join(" -map 0:s:{}".format(y) for y in z)

for file in sym_list:
 
    basename = os.path.basename(file)

    arg_list = 'ffmpeg.exe -i "{file}" -map 0:v {audio_track} {subtitle_track} -c copy "{output_path}{output_folder_name}{basename}"'.format(file=file, audio_track=audio_track, subtitle_track=subtitle_track, output_path=output_path, output_folder_name=output_folder_name, basename=basename)
    print(arg_list)
    subprocess.run(arg_list)
    nr_files = nr_files+1
    files_processed.append(file)


print("Number of files processed: ", nr_files)
print(*files_processed, sep='\n')
input("press enter to exit")