import sys
import os
import traceback
import requests
import logging
import clientinfo
import md5
import xbmc
import platform
import xbmcgui
import time
from utils import settings, language as lang

log = logging.getLogger("EMBY."+__name__)

# for info on the metrics that can be sent to Google Analytics
# https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters#events

logEventHistory = {}

# wrap a function to catch, log and then re throw an exception
def log_error(errors=(Exception, )):
    def decorator(func):
        def wrapper(*args, **kwargs):
            try:
                return func(*args, **kwargs)
            except errors as error:
                ga = GoogleAnalytics()
                errStrings = ga.formatException()
                ga.sendEventData("Exception", errStrings[0], errStrings[1], True)
                log.exception(error)
                log.error("log_error: %s \n args: %s \n kwargs: %s",
                          func.__name__, args, kwargs)
                raise
        return wrapper
    return decorator

# main GA class
class GoogleAnalytics():

    testing = False
    
    def __init__(self):
    
        client_info = clientinfo.ClientInfo()
        self.version = client_info.get_version()
        self.device_id = client_info.get_device_id()
        
        # user agent string, used for OS and Kodi version identification
        kodi_ver = xbmc.getInfoLabel("System.BuildVersion")
        if(not kodi_ver):
            kodi_ver = "na"
        kodi_ver = kodi_ver.strip()
        if(kodi_ver.find(" ") > 0):
            kodi_ver = kodi_ver[0:kodi_ver.find(" ")]
        self.userAgent = "Kodi/" + kodi_ver + " (" + self.getUserAgentOS() + ")"
        
        # Use set user name
        self.user_name = settings('username') or settings('connectUsername') or 'None'
        
        # use md5 for client and user for analytics
        self.device_id = md5.new(self.device_id).hexdigest()
        self.user_name = md5.new(self.user_name).hexdigest()
        
        # resolution
        self.screen_mode = xbmc.getInfoLabel("System.ScreenMode")
        self.screen_height = xbmc.getInfoLabel("System.ScreenHeight")
        self.screen_width = xbmc.getInfoLabel("System.ScreenWidth")

        self.lang = xbmc.getInfoLabel("System.Language")
    
    def getUserAgentOS(self):
    
        if xbmc.getCondVisibility('system.platform.osx'):
            return "Mac OS X"
        elif xbmc.getCondVisibility('system.platform.ios'):
            return "iOS"
        elif xbmc.getCondVisibility('system.platform.windows'):
            return "Windows NT"
        elif xbmc.getCondVisibility('system.platform.android'):
            return "Android"
        elif xbmc.getCondVisibility('system.platform.linux.raspberrypi'):
            return "Linux Rpi"
        elif xbmc.getCondVisibility('system.platform.linux'):
            return "Linux"
        else:
            return "Other"
        
    def formatException(self):
        exc_type, exc_obj, exc_tb = sys.exc_info()
		
        latestStackFrame = None
        allStackFrames = traceback.extract_tb(exc_tb)
        if(len(allStackFrames) > 0):
            latestStackFrame = allStackFrames[-1]
        log.error(str(latestStackFrame))
		
        errorType = "NA"
        errorFile = "NA"
		
        if(latestStackFrame != None):
            fileName = os.path.split(latestStackFrame[0])[1]
            
            codeLine = "NA"
            if(len(latestStackFrame) > 3 and latestStackFrame[3] != None):
                codeLine = latestStackFrame[3].strip()

            errorFile = "%s:%s(%s)(%s)" % (fileName, latestStackFrame[1], exc_obj.message, codeLine)
            errorFile = errorFile[0:499]
            errorType = "%s" % (exc_type.__name__)
            log.error(errorType + " - " + errorFile)
			
        del(exc_type, exc_obj, exc_tb)
        
        return errorType, errorFile
	
    def getBaseData(self):
    
        # all the data we can send to Google Analytics
        data = {}
        data['v'] = '1'
        data['tid'] = 'UA-85356267-1' # tracking id, this is the account ID
        
        data['ds'] = 'plugin' # data source
        
        data['an'] = 'Kodi4Emby' # App Name
        data['aid'] = '1' # App ID
        data['av'] = self.version # App Version
        #data['aiid'] = '1.1' # App installer ID

        data['cid'] = self.device_id # Client ID
        #data['uid'] = self.user_name # User ID

        data['ua'] = self.userAgent # user agent string
        
        # add width and height, only add if full screen
        if(self.screen_mode.lower().find("window") == -1):
            data['sr'] = str(self.screen_width) + "x" + str(self.screen_height)
        
        data["ul"] = self.lang
        
        return data
    
    def sendScreenView(self, name):
    
        data = self.getBaseData()
        data['t'] = 'screenview' # action type
        data['cd'] = name
    
        self.sendData(data)
    
    def sendEventData(self, eventCategory, eventAction, eventLabel=None, throttle=False):
        
        # if throttling is enabled then only log the same event every 5 min
        if(throttle):
            throttleKey = eventCategory + "-" + eventAction + "-" + str(eventLabel)
            lastLogged = logEventHistory.get(throttleKey)
            if(lastLogged != None):
                timeSinceLastLog = time.time() - lastLogged
                if(timeSinceLastLog < 300):
                    log.info("SKIPPING_LOG_EVENT : " + str(timeSinceLastLog) + " " + throttleKey)
                    return
            logEventHistory[throttleKey] = time.time()
        
        data = self.getBaseData()
        data['t'] = 'event' # action type
        data['ec'] = eventCategory # Event Category
        data['ea'] = eventAction # Event Action
        
        if(eventLabel != None):
            data['el'] = eventLabel # Event Label
        
        self.sendData(data)
            
    def sendData(self, data):
    
        log.info("GA: " + str(data))

        if(settings('metricLogging') == "false"):
            return
        
        if(self.testing):
            url = "https://www.google-analytics.com/debug/collect" # test URL
        else:
            url = "https://www.google-analytics.com/collect" # prod URL
        
        try:
            r = requests.post(url, data)
        except Exception as error:
            log.error(error)
        
        if(self.testing):
            log.info("GA: " + r.text.encode('utf-8'))