#################################################################################################
# utils 
#################################################################################################

import xbmc
import xbmcgui
import xbmcaddon
import xbmcvfs
import json
import os
import cProfile
import pstats
import time
import inspect
import sqlite3
import string
import unicodedata


from API import API
from PlayUtils import PlayUtils
from DownloadUtils import DownloadUtils
downloadUtils = DownloadUtils()
addonSettings = xbmcaddon.Addon(id='plugin.video.emby')
language = addonSettings.getLocalizedString

 
def logMsg(title, msg, level = 1):
    logLevel = int(addonSettings.getSetting("logLevel"))
    WINDOW = xbmcgui.Window(10000)
    WINDOW.setProperty('logLevel', str(logLevel))
    if(logLevel >= level):
        if(logLevel == 2): # inspect.stack() is expensive
            try:
                xbmc.log(title + " -> " + inspect.stack()[1][3] + " : " + str(msg))
            except UnicodeEncodeError:
                xbmc.log(title + " -> " + inspect.stack()[1][3] + " : " + str(msg.encode('utf-8')))
        else:
            try:
                xbmc.log(title + " -> " + str(msg))
            except UnicodeEncodeError:
                xbmc.log(title + " -> " + str(msg.encode('utf-8')))

def convertEncoding(data):
    #nasty hack to make sure we have a unicode string
    try:
        return data.decode('utf-8')
    except:
        return data
          
def KodiSQL(type="video"):
    
    if type == "music":
        dbPath = getKodiMusicDBPath()
    else:
        dbPath = getKodiVideoDBPath()
    
    connection = sqlite3.connect(dbPath)
    
    return connection

def getKodiVideoDBPath():
    if xbmc.getInfoLabel("System.BuildVersion").startswith("13"):
        #gotham
        dbVersion = "78"
    if xbmc.getInfoLabel("System.BuildVersion").startswith("15"):
        #isengard
        dbVersion = "92"
    else: 
        #helix
        dbVersion = "90"
    
    dbPath = xbmc.translatePath("special://profile/Database/MyVideos" + dbVersion + ".db")
    
    return dbPath  

def getKodiMusicDBPath():
    if xbmc.getInfoLabel("System.BuildVersion").startswith("13"):
        #gotham
        dbVersion = "48"
    if xbmc.getInfoLabel("System.BuildVersion").startswith("15"):
        #isengard
        dbVersion = "52"
    else: 
        #helix
        dbVersion = "48"
    
    dbPath = xbmc.translatePath("special://profile/Database/MyMusic" + dbVersion + ".db")
    
    return dbPath      
    
    
def checkAuthentication():
    #check authentication
    if addonSettings.getSetting('username') != "" and addonSettings.getSetting('ipaddress') != "":
        try:
            downloadUtils.authenticate()
        except Exception, e:
            logMsg("Emby authentication failed",e)
            pass
    
def prettifyXml(elem):
    rough_string = etree.tostring(elem, "utf-8")
    reparsed = minidom.parseString(rough_string)
    return reparsed.toprettyxml(indent="\t")        
    
def get_params( paramstring ):
    xbmc.log("Parameter string: " + paramstring)
    param={}
    if len(paramstring)>=2:
        params=paramstring

        if params[0] == "?":
            cleanedparams=params[1:]
        else:
            cleanedparams=params

        if (params[len(params)-1]=='/'):
                params=params[0:len(params)-2]

        pairsofparams=cleanedparams.split('&')
        for i in range(len(pairsofparams)):
                splitparams={}
                splitparams=pairsofparams[i].split('=')
                if (len(splitparams))==2:
                        param[splitparams[0]]=splitparams[1]
                elif (len(splitparams))==3:
                        param[splitparams[0]]=splitparams[1]+"="+splitparams[2]
    return param

def startProfiling():
    pr = cProfile.Profile()
    pr.enable()
    return pr
    
def stopProfiling(pr, profileName):
    pr.disable()
    ps = pstats.Stats(pr)
    
    addondir = xbmc.translatePath(xbmcaddon.Addon(id='plugin.video.emby').getAddonInfo('profile'))    
    
    fileTimeStamp = time.strftime("%Y-%m-%d %H-%M-%S")
    tabFileNamepath = os.path.join(addondir, "profiles")
    tabFileName = os.path.join(addondir, "profiles" , profileName + "_profile_(" + fileTimeStamp + ").tab")
    
    if not xbmcvfs.exists(tabFileNamepath):
        xbmcvfs.mkdir(tabFileNamepath)
    
    f = open(tabFileName, 'wb')
    f.write("NumbCalls\tTotalTime\tCumulativeTime\tFunctionName\tFileName\r\n")
    for (key, value) in ps.stats.items():
        (filename, count, func_name) = key
        (ccalls, ncalls, total_time, cumulative_time, callers) = value
        try:
            f.write(str(ncalls) + "\t" + "{:10.4f}".format(total_time) + "\t" + "{:10.4f}".format(cumulative_time) + "\t" + func_name + "\t" + filename + "\r\n")
        except ValueError:
            f.write(str(ncalls) + "\t" + "{0}".format(total_time) + "\t" + "{0}".format(cumulative_time) + "\t" + func_name + "\t" + filename + "\r\n")
    f.close()

def CleanName(filename):
    validFilenameChars = "-_.() %s%s" % (string.ascii_letters, string.digits)
    cleanedFilename = unicodedata.normalize('NFKD', filename).encode('ASCII', 'ignore')
    return ''.join(c for c in cleanedFilename if c in validFilenameChars)
   
        
def reset():

    return_value = xbmcgui.Dialog().yesno("Warning", "Are you sure you want to reset your local Kodi database?")

    if return_value == 0:
        return

    #cleanup video nodes
    import shutil
    path = "special://profile/library/video/"
    if xbmcvfs.exists(path):
        allDirs, allFiles = xbmcvfs.listdir(path)
        for dir in allDirs:
            if dir.startswith("Emby "):
                shutil.rmtree(xbmc.translatePath("special://profile/library/video/" + dir))
        for file in allFiles:
                if file.startswith("emby"):
                    xbmcvfs.delete(path + file)
    
    # Ask if user information should be deleted too.
    return_user = xbmcgui.Dialog().yesno("Warning", "Reset all Emby Addon settings?")

    delete_settings = False
    if return_user == 1:
        delete_settings = True
    
    # first stop any db sync
    WINDOW = xbmcgui.Window( 10000 )
    WINDOW.setProperty("SyncDatabaseShouldStop", "true")
    
    count = 0
    while(WINDOW.getProperty("SyncDatabaseRunning") == "true"):
        xbmc.log("Sync Running, will wait : " + str(count))
        count += 1
        if(count > 10):
            dialog = xbmcgui.Dialog()
            dialog.ok('Warning', 'Could not stop DB sync, you should try again.')
            return
        xbmc.sleep(1000)
       
    # delete db table data
    print "Doing DB Reset"
    connection = KodiSQL()
    cursor = connection.cursor( )
    cursor.execute('SELECT tbl_name FROM sqlite_master WHERE type="table"')
    rows = cursor.fetchall()
    for row in rows:
        tableName = row[0]
        if(tableName != "version"):
            cursor.execute("DELETE FROM " + tableName)
    connection.commit()
    cursor.close()
    
    # reset the install run flag
    WINDOW.setProperty("SyncInstallRunDone", "false")

    if (delete_settings == True):
        addondir = xbmc.translatePath(addonSettings.getAddonInfo('profile'))
        dataPath = os.path.join(addondir + "settings.xml")
        xbmcvfs.delete(dataPath)
        xbmc.log("Deleting : settings.xml")

    dialog = xbmcgui.Dialog()
    dialog.ok('Emby Reset', 'Database reset has completed, Kodi will now restart to apply the changes.')
    xbmc.executebuiltin("RestartApp")