import subprocess, settings, tempfile, os, urllib, re

import xbmcgui, xbmc, xbmcplugin

import brlog


class MakeMkvInteraction:
    def __init__(self):
        self.settings = settings.BluRaySettings()
        self.log = brlog.BrLog('makemkvinteraction')

    def discList(self):
        # First stop any old one
        self.killMkv()
        tmpf = tempfile.NamedTemporaryFile(delete=False)
        self.log.info('temporary file with disc info: %s' % tmpf.name)
        sp = os.system(r'%s -r --cache=1 --messages=%s info disc:10'
                       % (self.settings.mkvLocation, tmpf.name))
        self.log.info('Return code for disc info generation: %s' % str(sp))
        if not os.path.isfile(tmpf.name):
            self.log.error('Is no file: %s' % tmpf.name)

        tmpf = open(tmpf.name)
        content = tmpf.read()
        tmpf.close()
        disclist = [x for x in content.splitlines() if x.startswith('DRV:')]
        readableDiscs = list()
        for item in disclist:
            info = [x.replace('"','') for x in item[4:].split(',')]
            if len(info[5]) > 0:
                readableDiscs.append( (info[0],info[5]))
        return readableDiscs

    def startStream(self, disc):
        self.log.info("Starting stream on disc %s with local url %s" %(disc, self.settings.rootURL))
        # Then fork the makemkv process
        return self.__runandregistershutdown('%s -r --cache=128 stream disc:%s' %(self.settings.mkvLocation, disc))

    def startFileStream(self, choice):
        type = ''
        if re.search("BDMV.index.bdmv", choice) :
            # Treat as file
            type = 'file'
            choice = choice[:-15]
        elif re.search("BDMV.MovieObject.bdmv", choice) :
            # Treat as file
            type = 'file'
            choice = choice[:-21]
        else:
            # Treat as iso
            type = 'iso'

        # Check if the file is reachable through the filesystem, to prevent errors with smb:// shares etc.
        if not os.path.exists(choice) :
            dialog = xbmcgui.Dialog() 
            dialog.ok("Info", _(50073))
            return False

        return self.__runandregistershutdown('"%s" -r --cache=128 stream \'%s:%s\'' %(self.settings.mkvLocation, type, choice))


    def __runandregistershutdown(self, mkvStart):
        result = self.__runmkvstream(mkvStart)
        if result >= 0:
            return True
        else:
            return False


    def __runmkvstream(self, mkvStart):
        self.log.info('Starting %s' %(mkvStart))
        # First stop any old one
        self.killMkv()
        timeSlept = 0
        proc = subprocess.Popen(mkvStart, shell=True)
        # Then wait for the stream to come up
        while True:
            try:
                urllib.urlretrieve(self.settings.rootURL)
                return proc.pid
            except IOError:
                pass
            if proc.poll() :
                if proc.returncode != 0 :
                    self.log.error("makemkvcon error'd out! May require update. (Return Code: %s)" % proc.returncode)
                return -1
            xbmc.sleep(1000)
            timeSlept = timeSlept + 1
            if timeSlept > self.settings.waitTimeOut :
                return -1


    def killMkv(self):
        # Linux
        if os.name == 'posix':
            try :
                self.log.info('attempting linux kill of makemkvcon')
                subprocess.call('killall -9 makemkvcon', shell=True)
                self.log.info('Linux call successful')
            except:
                pass

        #Windows.
        if os.name == 'nt':
            try :
                self.log.info('attempting windows kill of makemkvcon')
                subprocess.call('taskkill /F /IM makemkvcon.exe', shell=True)
                self.log.info('Windows call successful')
            except:
                pass

    def makeMkvExists(self):
        (fin, fout) = os.popen4('%s -r' %(self.settings.mkvLocation))
        result = fout.read()
        self.log.info('Make mkv check returned %s' % (result.splitlines()[0]))
        if result.splitlines()[0].startswith('Use: makemkvcon [switches] Command [Parameters]'):
            self.log.info("MakeMkvCon found!")
            return True
        else:
            self.log.info('MakeMkvcon seems not to be configured properly : %s'
                          % (self.settings.mkvLocation))
            return False