#!/usr/bin/env python
import datetime
import os
import time
import re
import shutil
import sys
import nzbtomedia
import platform

from subprocess import Popen
from nzbtomedia.Transcoder import Transcoder
from nzbtomedia.autoProcess.autoProcessComics import autoProcessComics
from nzbtomedia.autoProcess.autoProcessGames import autoProcessGames
from nzbtomedia.autoProcess.autoProcessMovie import autoProcessMovie
from nzbtomedia.autoProcess.autoProcessMusic import autoProcessMusic
from nzbtomedia.autoProcess.autoProcessTV import autoProcessTV
from nzbtomedia.extractor import extractor
from nzbtomedia.nzbToMediaUtil import category_search, sanitizeFileName, copy_link, parse_args, flatten, get_dirnames, \
    remove_read_only, cleanup_directories, create_torrent_class, pause_torrent, resume_torrent, listMediaFiles, joinPath, \
    extractFiles
from nzbtomedia import logger

def processTorrent(inputDirectory, inputName, inputCategory, inputHash, inputID, clientAgent):
    status = 1  # 1 = failed | 0 = success
    root = 0
    video = 0
    foundFile = 0
    copy_list = []

    logger.debug("Received Directory: %s | Name: %s | Category: %s" % (inputDirectory, inputName, inputCategory))

    inputDirectory, inputName, inputCategory, root, single = category_search(inputDirectory, inputName, inputCategory, root, nzbtomedia.CATEGORIES)  # Confirm the category by parsing directory structure

    logger.debug("Determined Directory: %s | Name: %s | Category: %s" % (inputDirectory, inputName, inputCategory))

    section = nzbtomedia.CFG.findsection(inputCategory)
    if section:
        if nzbtomedia.CFG[section]['extract']:
            logger.debug('Checking for archives to extract in directory: %s' % (inputDirectory))
            extractFiles(inputDirectory)
    else:
        logger.error(
            "We could not find a section with containing a download category labeled %s in your autoProcessMedia.cfg, Exiting!" % inputCategory)
        return -1

    TorrentClass = None
    if clientAgent != 'manual':
        TorrentClass = create_torrent_class(clientAgent)
        pause_torrent(clientAgent, TorrentClass, inputHash, inputID, inputName)

    processCategories = nzbtomedia.CFG[nzbtomedia.SECTIONS].sections

    if inputCategory == "":
        inputCategory = "UNCAT"
    outputDestination = os.path.normpath(joinPath(nzbtomedia.OUTPUTDIRECTORY, inputCategory, sanitizeFileName(inputName)))
    logger.info("Output directory set to: %s" % (outputDestination))

    if nzbtomedia.CFG["SickBeard"][inputCategory]:
        Torrent_NoLink = int(nzbtomedia.CFG["SickBeard"][inputCategory]["Torrent_NoLink"])  # 0
        if Torrent_NoLink == 1:
            logger.info("Calling autoProcessTV to post-process: %s",inputName)
            result = autoProcessTV().processEpisode(inputDirectory, inputName, 0, clientAgent=clientAgent, inputCategory=inputCategory)
            if result != 0:
                logger.error("A problem was reported in the autoProcessTV script.")

            if clientAgent != 'manual':
                resume_torrent(clientAgent, TorrentClass, inputHash, inputID, result, inputName)

            cleanup_directories(inputCategory, processCategories, result, outputDestination)
            return result

    processOnly = nzbtomedia.CFG[nzbtomedia.SECTIONS].sections
    if not "NONE" in nzbtomedia.USER_SCRIPT_CATEGORIES: # if None, we only process the 5 listed.
        if "ALL" in nzbtomedia.USER_SCRIPT_CATEGORIES: # All defined categories
            processOnly = nzbtomedia.CATEGORIES
        processOnly.extend(nzbtomedia.USER_SCRIPT_CATEGORIES) # Adds all categories to be processed by userscript.

    if not inputCategory in processOnly:
        logger.info("No processing to be done for category: %s. Exiting" % (inputCategory))
        return

    logger.debug("Scanning files in directory: %s" % (inputDirectory))

    if nzbtomedia.CFG["HeadPhones"][inputCategory]:
        nzbtomedia.NOFLATTEN.extend(nzbtomedia.CFG["HeadPhones"].sections) # Make sure we preserve folder structure for HeadPhones.

    outputDestinationMaster = outputDestination # Save the original, so we can change this within the loop below, and reset afterwards.
    now = datetime.datetime.now()

    inputFiles = listMediaFiles(inputDirectory)
    logger.debug("Found %s files in %s" % (str(len(inputFiles)), inputDirectory))
    for inputFile in inputFiles:
        fileDirPath = os.path.dirname(inputFile)
        fileName, fileExt = os.path.splitext(os.path.basename(inputFile))
        fullFileName = os.path.basename(inputFile)

        if inputCategory in nzbtomedia.NOFLATTEN:
            if not fileDirPath == outputDestinationMaster:
                outputDestination = joinPath(outputDestinationMaster, fileDirPath) # join this extra directory to output.
                logger.debug("Setting outputDestination to %s to preserve folder structure" % (outputDestination))

        targetDirectory = joinPath(outputDestination, fullFileName)

        if root == 1:
            if not foundFile:
                logger.debug("Looking for %s in: %s" % (inputName, fullFileName))
            if (sanitizeFileName(inputName) in sanitizeFileName(fullFileName)) or (sanitizeFileName(fileName) in sanitizeFileName(inputName)):
                foundFile = True
                logger.debug("Found file %s that matches Torrent Name %s" % (fullFileName, inputName))
            else:
                continue

        if root == 2:
            mtime_lapse = now - datetime.datetime.fromtimestamp(os.path.getmtime(inputFile))
            ctime_lapse = now - datetime.datetime.fromtimestamp(os.path.getctime(inputFile))

            if not foundFile:
                logger.debug("Looking for files with modified/created dates less than 5 minutes old.")
            if (mtime_lapse < datetime.timedelta(minutes=5)) or (ctime_lapse < datetime.timedelta(minutes=5)):
                #pass  # This file does match the date time criteria
                foundFile = True
                logger.debug("Found file %s with date modifed/created less than 5 minutes ago." % (fullFileName))
            else:
                continue  # This file has not been recently moved or created, skip it

        try:
            copy_link(inputFile, targetDirectory, nzbtomedia.USELINK, outputDestination)
            copy_list.append([inputFile, joinPath(outputDestination, fullFileName)])
        except:
            logger.error("Failed to link file: %s" % (fullFileName))

    outputDestination = outputDestinationMaster # Reset here.
    if not inputCategory in nzbtomedia.NOFLATTEN: #don't flatten hp in case multi cd albums, and we need to copy this back later.
        flatten(outputDestination)

    if platform.system() == 'Windows':  # remove Read Only flag from files in Windows.
        remove_read_only(outputDestination)

    # Now check if video files exist in destination:
    if nzbtomedia.CFG["SickBeard","NzbDrone", "CouchPotato"][inputCategory]:
        for outputFile in listMediaFiles(outputDestination):
            fullFileName = os.path.basename(outputFile)
            fileName, fileExt = os.path.splitext(fullFileName)

            if fileExt in nzbtomedia.MEDIACONTAINER:
                logger.debug("Found media file: %s" % (fullFileName))
                video += 1

        if video > 0:
            logger.debug("Found %s media files" % (str(video)))
            status = 0
        else:
            logger.warning("Found no media files in %s" % outputDestination)


    # Only these sections can handling failed downloads so make sure everything else gets through without the check for failed
    if not nzbtomedia.CFG['CouchPotato','SickBeard','NzbDrone'][inputCategory]:
        status = 0

    result = 0
    if (inputCategory in nzbtomedia.USER_SCRIPT_CATEGORIES and not "NONE" in nzbtomedia.USER_SCRIPT_CATEGORIES) or ("ALL" in nzbtomedia.USER_SCRIPT_CATEGORIES and not inputCategory in processCategories):
        logger.info("Processing user script %s." % (nzbtomedia.USER_SCRIPT))
        result = external_script(outputDestination,inputName,inputCategory)
    elif status != 0:
        logger.error("Something failed! Please check logs. Exiting")
        return status

    if nzbtomedia.CFG['CouchPotato'][inputCategory]:
        logger.info("Calling CouchPotato:" + inputCategory + " to post-process: %s" % (inputName))
        download_id = inputHash
        result = autoProcessMovie().process(outputDestination, inputName, status, clientAgent, download_id, inputCategory)
    elif nzbtomedia.CFG['SickBeard'][inputCategory]:
        logger.info("Calling Sick-Beard:" + inputCategory + " to post-process: %s" % (inputName))
        result = autoProcessTV().processEpisode(outputDestination, inputName, status, clientAgent, inputCategory)
    elif nzbtomedia.CFG['NzbDrone'][inputCategory]:
        logger.info("Calling NzbDrone:" + inputCategory + " to post-process: %s" % (inputName))
        result = autoProcessTV().processEpisode(outputDestination, inputName, status, clientAgent, inputCategory)
    elif nzbtomedia.CFG['HeadPhones'][inputCategory]:
        status = 0 #Failed Handling Not Supported
        logger.info("Calling HeadPhones:" + inputCategory + " to post-process: %s" % (inputName))
        result = autoProcessMusic().process(outputDestination, inputName, status, clientAgent, inputCategory)
    elif nzbtomedia.CFG['Mylar'][inputCategory]:
        status = 0 #Failed Handling Not Supported
        logger.info("Calling Mylar:" + inputCategory + " to post-process: %s" % (inputName))
        result = autoProcessComics().processEpisode(outputDestination, inputName, status, clientAgent, inputCategory)
    elif nzbtomedia.CFG['Gamez'][inputCategory]:
        status = 0 #Failed Handling Not Supported
        logger.info("Calling Gamez:" + inputCategory + " to post-process: %s" % (inputName))
        result = autoProcessGames().process(outputDestination, inputName, status, clientAgent, inputCategory)

    if result != 0 and clientAgent != 'manual':
        logger.error("A problem was reported in the autoProcess* script. If torrent was paused we will resume seeding")
        resume_torrent(clientAgent, TorrentClass, inputHash, inputID, result, inputName)

    cleanup_directories(inputCategory, processCategories, result, outputDestination)
    return result

def external_script(outputDestination, torrentName, torrentLabel):

    final_result = 0 # start at 0.
    num_files = 0
    for dirpath, dirnames, filenames in os.walk(outputDestination):
        for file in filenames:

            filePath = joinPath(dirpath, file)
            fileName, fileExtension = os.path.splitext(file)

            if fileExtension in nzbtomedia.USER_SCRIPT_MEDIAEXTENSIONS or "ALL" in nzbtomedia.USER_SCRIPT_MEDIAEXTENSIONS:
                num_files = num_files + 1
                if nzbtomedia.USER_SCRIPT_RUNONCE == 1 and num_files > 1: # we have already run once, so just continue to get number of files.
                    continue
                command = [nzbtomedia.USER_SCRIPT]
                for param in nzbtomedia.USER_SCRIPT_PARAM:
                    if param == "FN":
                        command.append(file)
                        continue
                    elif param == "FP":
                        command.append(filePath)
                        continue
                    elif param == "TN":
                        command.append(torrentName)
                        continue
                    elif param == "TL":
                        command.append(torrentLabel)
                        continue
                    elif param == "DN":
                        if nzbtomedia.USER_SCRIPT_RUNONCE == 1:
                            command.append(outputDestination)
                        else:
                            command.append(dirpath)
                        continue
                    else:
                        command.append(param)
                        continue
                cmd = ""
                for item in command:
                    cmd = cmd + " " + item
                logger.info("Running script %s on file %s." % (cmd, filePath))
                try:
                    p = Popen(command)
                    res = p.wait()
                    if str(res) in nzbtomedia.USER_SCRIPT_SUCCESSCODES: # Linux returns 0 for successful.
                        logger.info("UserScript %s was successfull" % (command[0]))
                        result = 0
                    else:
                        logger.error("UserScript %s has failed with return code: %s" % (command[0], res))
                        logger.info("If the UserScript completed successfully you should add %s to the user_script_successCodes" % (res))
                        result = int(1)
                except:
                    logger.error("UserScript %s has failed" % (command[0]))
                    result = int(1)
                final_result = final_result + result

    time.sleep(nzbtomedia.USER_DELAY)
    num_files_new = 0
    for dirpath, dirnames, filenames in os.walk(outputDestination):
        for file in filenames:
            filePath = joinPath(dirpath, file)
            fileName, fileExtension = os.path.splitext(file)

            if fileExtension in nzbtomedia.USER_SCRIPT_MEDIAEXTENSIONS or nzbtomedia.USER_SCRIPT_MEDIAEXTENSIONS == "ALL":
                num_files_new = num_files_new + 1

    if nzbtomedia.USER_SCRIPT_CLEAN == int(1) and num_files_new == 0 and final_result == 0:
        logger.info("All files have been processed. Cleaning outputDirectory %s" % (outputDestination))
        shutil.rmtree(outputDestination)
    elif nzbtomedia.USER_SCRIPT_CLEAN == int(1) and num_files_new != 0:
        logger.info("%s files were processed, but %s still remain. outputDirectory will not be cleaned." % (num_files, num_files_new))
    return final_result

def main(args):
    # Initialize the config
    nzbtomedia.initialize()

    # clientAgent for Torrents
    clientAgent = nzbtomedia.TORRENT_CLIENTAGENT

    logger.info("#########################################################")
    logger.info("## ..::[%s]::.. CLIENT:%s ## STARTING" % (args[0], clientAgent))
    logger.info("#########################################################")

    # debug command line options
    logger.debug("Options passed into TorrentToMedia: %s" % (args))

    # Post-Processing Result
    result = 0

    try:
        inputDirectory, inputName, inputCategory, inputHash, inputID = parse_args(clientAgent, args)
    except:
        logger.error("There was a problem loading variables")
        return -1

    if inputDirectory and inputName and inputHash and inputID:
        result = processTorrent(inputDirectory, inputName, inputCategory, inputHash, inputID, clientAgent)
    else:
        # Perform Manual Run
        logger.warning("Invalid number of arguments received from client, Switching to manual run mode ...")

        # Loop and auto-process
        clientAgent = 'manual'
        for section, subsection in nzbtomedia.SUBSECTIONS.items():
            for category in subsection:
                if nzbtomedia.CFG[section][category].isenabled():
                    dirNames = get_dirnames(section, category)
                    for dirName in dirNames:
                        logger.info("Running %s:%s as a manual run for folder %s ..." % (section, category, dirName))
                        results = processTorrent(dirName, os.path.basename(dirName), category, inputHash, inputID, clientAgent)
                        if results != 0:
                            result = results
                            logger.error("A problem was reported when trying to manually run %s:%s." % (section, category))
                else:
                    logger.warning("%s:%s is DISABLED, you can enable this in autoProcessMedia.cfg ..." % (section, category))

    if result == 0:
        logger.info("The %s script completed successfully." % (args[0]))
    else:
        logger.error("A problem was reported in the %s script." % (args[0]))

    sys.exit(result)

if __name__ == "__main__":
    main(sys.argv)