package src

import (
	"encoding/json"
	"encoding/xml"
	"errors"
	"fmt"
	"io/ioutil"
	"path"
	"runtime"

	"strconv"
	"strings"
	"time"
)

// Provider XMLTV Datei überprüfen
func checkXMLCompatibility(id string, body []byte) (err error) {

	var xmltv XMLTV
	var compatibility = make(map[string]int)

	err = xml.Unmarshal(body, &xmltv)
	if err != nil {
		return
	}

	compatibility["xmltv.channels"] = len(xmltv.Channel)
	compatibility["xmltv.programs"] = len(xmltv.Program)

	setProviderCompatibility(id, "xmltv", compatibility)

	return
}

// XEPG Daten erstellen
func buildXEPG(background bool) {

	if System.ScanInProgress == 1 {
		return
	}

	System.ScanInProgress = 1

	if Settings.EpgSource == "XEPG" {

		switch background {

		case true:

			go func() {

				createXEPGMapping()
				createXEPGDatabase()
				mapping()
				cleanupXEPG()
				createXMLTVFile()
				createM3UFile()
				go cachingImages()

				showInfo("XEPG:" + fmt.Sprintf("Ready to use"))

				System.ScanInProgress = 0

				// Cache löschen
				/*
					Data.Cache.XMLTV = make(map[string]XMLTV)
					Data.Cache.XMLTV = nil
				*/
				runtime.GC()

			}()

		case false:

			createXEPGMapping()
			createXEPGDatabase()
			mapping()
			cleanupXEPG()

			go func() {

				createXMLTVFile()
				createM3UFile()
				go cachingImages()
				showInfo("XEPG:" + fmt.Sprintf("Ready to use"))

				System.ScanInProgress = 0

				// Cache löschen
				//Data.Cache.XMLTV = make(map[string]XMLTV)
				//Data.Cache.XMLTV = nil
				runtime.GC()

			}()

		}

	} else {

		getLineup()
		System.ScanInProgress = 0

	}

}

// XEPG Daten aktualisieren
func updateXEPG(background bool) {

	if System.ScanInProgress == 1 {
		return
	}

	System.ScanInProgress = 1

	if Settings.EpgSource == "XEPG" {

		switch background {

		case false:

			createXEPGDatabase()
			mapping()
			cleanupXEPG()

			go func() {

				createXMLTVFile()
				createM3UFile()
				showInfo("XEPG:" + fmt.Sprintf("Ready to use"))

				System.ScanInProgress = 0

			}()

		case true:
			System.ScanInProgress = 0

		}

	} else {

		System.ScanInProgress = 0

	}

	// Cache löschen
	//Data.Cache.XMLTV = nil //make(map[string]XMLTV)
	//Data.Cache.XMLTV = make(map[string]XMLTV)

	return
}

// Mapping Menü für die XMLTV Dateien erstellen
func createXEPGMapping() {

	Data.XMLTV.Files = getLocalProviderFiles("xmltv")
	Data.XMLTV.Mapping = make(map[string]interface{})

	var tmpMap = make(map[string]interface{})

	var friendlyDisplayName = func(channel Channel) (displayName string) {
		var dn = channel.DisplayName
		displayName = dn[0].Value

		switch len(dn) {
		case 1:
			displayName = dn[0].Value
		default:
			displayName = fmt.Sprintf("%s (%s)", dn[1].Value, dn[0].Value)
		}

		return
	}

	if len(Data.XMLTV.Files) > 0 {

		for i := len(Data.XMLTV.Files) - 1; i >= 0; i-- {

			var file = Data.XMLTV.Files[i]

			var err error
			var fileID = strings.TrimSuffix(getFilenameFromPath(file), path.Ext(getFilenameFromPath(file)))
			showInfo("XEPG:" + "Parse XMLTV file: " + getProviderParameter(fileID, "xmltv", "name"))

			//xmltv, err = getLocalXMLTV(file)
			var xmltv XMLTV

			err = getLocalXMLTV(file, &xmltv)
			if err != nil {
				Data.XMLTV.Files = append(Data.XMLTV.Files, Data.XMLTV.Files[i+1:]...)
				var errMsg = err.Error()
				err = errors.New(getProviderParameter(fileID, "xmltv", "name") + ": " + errMsg)
				ShowError(err, 000)
			}

			// XML Parsen (Provider Datei)
			if err == nil {

				// Daten aus der XML Datei in eine temporäre Map schreiben
				var xmltvMap = make(map[string]interface{})

				for _, c := range xmltv.Channel {
					var channel = make(map[string]interface{})

					channel["id"] = c.ID
					channel["display-name"] = friendlyDisplayName(*c)
					channel["icon"] = c.Icon.Src

					xmltvMap[c.ID] = channel

				}

				tmpMap[getFilenameFromPath(file)] = xmltvMap
				Data.XMLTV.Mapping[getFilenameFromPath(file)] = xmltvMap

			}

		}

		Data.XMLTV.Mapping = tmpMap
		tmpMap = make(map[string]interface{})

	} else {

		if System.ConfigurationWizard == false {
			showWarning(1007)
		}

	}

	// Auswahl für den Dummy erstellen
	var dummy = make(map[string]interface{})
	var times = []string{"30", "60", "90", "120"}

	for _, i := range times {

		var dummyChannel = make(map[string]string)
		dummyChannel["display-name"] = i + " Minutes"
		dummyChannel["id"] = i + "_Minutes"
		dummyChannel["icon"] = ""

		dummy[dummyChannel["id"]] = dummyChannel

	}

	Data.XMLTV.Mapping["xTeVe Dummy"] = dummy

	return
}

// XEPG Datenbank erstellen / aktualisieren
func createXEPGDatabase() (err error) {

	var allChannelNumbers []float64
	Data.Cache.Streams.Active = []string{}

	Data.XEPG.Channels, err = loadJSONFileToMap(System.File.XEPG)
	if err != nil {
		ShowError(err, 1004)
		return err
	}

	var createNewID = func() (xepg string) {

		var firstID = 0 //len(Data.XEPG.Channels)

	newXEPGID:

		if _, ok := Data.XEPG.Channels["x-ID."+strconv.FormatInt(int64(firstID), 10)]; ok {
			firstID++
			goto newXEPGID
		}

		xepg = "x-ID." + strconv.FormatInt(int64(firstID), 10)
		return
	}

	var getFreeChannelNumber = func() (xChannelID string) {

		var firstFreeNumber float64 = Settings.MappingFirstChannel

	newNumber:

		if indexOfFloat64(firstFreeNumber, allChannelNumbers) == -1 {
			xChannelID = fmt.Sprintf("%g", firstFreeNumber)
			allChannelNumbers = append(allChannelNumbers, firstFreeNumber)
		} else {
			firstFreeNumber++
			goto newNumber
		}

		return
	}

	showInfo("XEPG:" + "Update database")

	// Kanal mit fehlenden Kanalnummern löschen
	for id, dxc := range Data.XEPG.Channels {

		var xepgChannel XEPGChannelStruct
		err = json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)
		if err != nil {
			return
		}

		if len(xepgChannel.XChannelID) == 0 {
			delete(Data.XEPG.Channels, id)
		}

		if xChannelID, err := strconv.ParseFloat(xepgChannel.XChannelID, 64); err == nil {
			allChannelNumbers = append(allChannelNumbers, xChannelID)
		}

	}

	var xepgChannels = make(map[string]interface{})

	for k, v := range Data.XEPG.Channels {
		xepgChannels[k] = v
	}

	for _, dsa := range Data.Streams.Active {

		var channelExists = false  // Entscheidet ob ein Kanal neu zu Datenbank hinzugefügt werden soll.
		var channelHasUUID = false // Überprüft, ob der Kanal (Stream) eindeutige ID's besitzt
		var currentXEPGID string   // Aktuelle Datenbank ID (XEPG). Wird verwendet, um den Kanal in der Datenbank mit dem Stream der M3u zu aktualisieren
		var m3uChannel M3UChannelStructXEPG

		err = json.Unmarshal([]byte(mapToJSON(dsa)), &m3uChannel)
		if err != nil {
			return
		}

		Data.Cache.Streams.Active = append(Data.Cache.Streams.Active, m3uChannel.Name)

		// XEPG Datenbank durchlaufen um nach dem Kanal zu suchen.
		for xepg, dxc := range xepgChannels {

			var xepgChannel XEPGChannelStruct
			err = json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)
			if err != nil {
				return
			}

			// Vergleichen des Streams anhand einer UUID in der M3U mit dem Kanal in der Databank
			if len(xepgChannel.UUIDValue) > 0 && len(m3uChannel.UUIDValue) > 0 {

				if xepgChannel.UUIDValue == m3uChannel.UUIDValue && xepgChannel.UUIDKey == m3uChannel.UUIDKey {

					channelExists = true
					channelHasUUID = true
					currentXEPGID = xepg
					break

				}

			} else {
				// Vergleichen des Streams mit dem Kanal in der Databank anhand des Kanalnamens
				//fmt.Println(xepgChannel.Name, xepgChannel.UUIDKey, xepgChannel.UUIDValue)
				if xepgChannel.Name == m3uChannel.Name {
					channelExists = true
					currentXEPGID = xepg
					break
				}

			}

		}

		//os.Exit(0)

		switch channelExists {

		case true:
			// Bereits vorhandener Kanal
			var xepgChannel XEPGChannelStruct
			err = json.Unmarshal([]byte(mapToJSON(Data.XEPG.Channels[currentXEPGID])), &xepgChannel)
			if err != nil {
				return
			}

			// Streaming URL aktualisieren
			xepgChannel.URL = m3uChannel.URL

			// Name aktualisieren, anhand des Names wird überprüft ob der Kanal noch in einer Playlist verhanden. Funktion: cleanupXEPG
			xepgChannel.Name = m3uChannel.Name

			// Kanalname aktualisieren, nur mit Kanal ID's möglich
			if channelHasUUID == true {
				if xepgChannel.XUpdateChannelName == true {
					xepgChannel.XName = m3uChannel.Name
				}
			}

			// Kanallogo aktualisieren. Wird bei vorhandenem Logo in der XMLTV Datei wieder überschrieben
			if xepgChannel.XUpdateChannelIcon == true {
				xepgChannel.TvgLogo = m3uChannel.TvgLogo
			}

			Data.XEPG.Channels[currentXEPGID] = xepgChannel

		case false:
			// Neuer Kanal
			var xepg = createNewID()
			var xChannelID = getFreeChannelNumber()

			var newChannel XEPGChannelStruct
			newChannel.FileM3UID = m3uChannel.FileM3UID
			newChannel.FileM3UName = m3uChannel.FileM3UName
			newChannel.FileM3UPath = m3uChannel.FileM3UPath
			newChannel.Values = m3uChannel.Values
			newChannel.GroupTitle = m3uChannel.GroupTitle
			newChannel.Name = m3uChannel.Name
			newChannel.TvgID = m3uChannel.TvgID
			newChannel.TvgLogo = m3uChannel.TvgLogo
			newChannel.TvgName = m3uChannel.TvgName
			newChannel.URL = m3uChannel.URL
			newChannel.XmltvFile = ""
			newChannel.XMapping = ""

			if len(m3uChannel.UUIDKey) > 0 {
				newChannel.UUIDKey = m3uChannel.UUIDKey
				newChannel.UUIDValue = m3uChannel.UUIDValue
			}

			newChannel.XName = m3uChannel.Name
			newChannel.XGroupTitle = m3uChannel.GroupTitle
			newChannel.XEPG = xepg
			newChannel.XChannelID = xChannelID

			Data.XEPG.Channels[xepg] = newChannel

		}

	}

	err = saveMapToJSONFile(System.File.XEPG, Data.XEPG.Channels)
	if err != nil {
		return
	}

	return
}

// Kanäle automatisch zuordnen und das Mapping überprüfen
func mapping() (err error) {
	showInfo("XEPG:" + "Map channels")

	for xepg, dxc := range Data.XEPG.Channels {

		var xepgChannel XEPGChannelStruct
		err = json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)
		if err != nil {
			return
		}

		// Automatische Mapping für neue Kanäle. Wird nur ausgeführt, wenn der Kanal deaktiviert ist und keine XMLTV Datei und kein XMLTV Kanal zugeordnet ist.
		if xepgChannel.XActive == false {

			// Werte kann "-" sein, deswegen len < 1
			if len(xepgChannel.XmltvFile) < 1 && len(xepgChannel.XmltvFile) < 1 {

				var tvgID = xepgChannel.TvgID

				// Default für neuen Kanal setzen
				xepgChannel.XmltvFile = "-"
				xepgChannel.XMapping = "-"

				Data.XEPG.Channels[xepg] = xepgChannel

				for file, xmltvChannels := range Data.XMLTV.Mapping {

					if channel, ok := xmltvChannels.(map[string]interface{})[tvgID]; ok {

						if channelID, ok := channel.(map[string]interface{})["id"].(string); ok {

							xepgChannel.XmltvFile = file
							xepgChannel.XMapping = channelID
							xepgChannel.XActive = true

							// Falls in der XMLTV Datei ein Logo existiert, wird dieses verwendet. Falls nicht, dann das Logo aus der M3U Datei
							if icon, ok := channel.(map[string]interface{})["icon"].(string); ok {
								if len(icon) > 0 {
									xepgChannel.TvgLogo = icon
								}
							}

							Data.XEPG.Channels[xepg] = xepgChannel
							break

						}

					}

				}

			}

		}

		// Überprüfen, ob die zugeordneten XMLTV Dateien und Kanäle noch existieren.
		if xepgChannel.XActive == true {

			var mapping = xepgChannel.XMapping
			var file = xepgChannel.XmltvFile

			if file != "xTeVe Dummy" {

				if value, ok := Data.XMLTV.Mapping[file].(map[string]interface{}); ok {

					if channel, ok := value[mapping].(map[string]interface{}); ok {

						// Kanallogo aktualisieren
						if logo, ok := channel["icon"].(string); ok {

							if xepgChannel.XUpdateChannelIcon == true && len(logo) > 0 {
								xepgChannel.TvgLogo = logo
							}

						}

					} else {

						ShowError(fmt.Errorf(fmt.Sprintf("Missing EPG data: %s", xepgChannel.Name)), 0)
						showWarning(2302)
						xepgChannel.XActive = false

					}

				} else {

					var fileID = strings.TrimSuffix(getFilenameFromPath(file), path.Ext(getFilenameFromPath(file)))

					ShowError(fmt.Errorf("Missing XMLTV file: %s", getProviderParameter(fileID, "xmltv", "name")), 0)
					showWarning(2301)
					xepgChannel.XActive = false

				}

			}

			if len(xepgChannel.XmltvFile) == 0 {
				xepgChannel.XmltvFile = "-"
				xepgChannel.XActive = false
			}

			if len(xepgChannel.XMapping) == 0 {
				xepgChannel.XMapping = "-"
				xepgChannel.XActive = false
			}

			Data.XEPG.Channels[xepg] = xepgChannel

		}

	}

	err = saveMapToJSONFile(System.File.XEPG, Data.XEPG.Channels)
	if err != nil {
		return
	}

	return
}

// XMLTV Datei erstellen
func createXMLTVFile() (err error) {

	Data.Cache.ImagesFiles = []string{}
	Data.Cache.ImagesURLS = []string{}
	Data.Cache.ImagesCache = []string{}

	files, err := ioutil.ReadDir(System.Folder.ImagesCache)
	if err == nil {

		for _, file := range files {

			if indexOfString(file.Name(), Data.Cache.ImagesCache) == -1 {
				Data.Cache.ImagesCache = append(Data.Cache.ImagesCache, file.Name())
			}

		}

	}

	if len(Data.XMLTV.Files) == 0 && len(Data.Streams.Active) == 0 {
		Data.XEPG.Channels = make(map[string]interface{})
		return
	}

	showInfo("XEPG:" + fmt.Sprintf("Create XMLTV file (%s)", System.File.XML))

	var xepgXML XMLTV

	xepgXML.Generator = System.Name

	if System.Branch == "master" {
		xepgXML.Source = fmt.Sprintf("%s - %s", System.Name, System.Version)
	} else {
		xepgXML.Source = fmt.Sprintf("%s - %s.%s", System.Name, System.Version, System.Build)
	}

	var tmpProgram = &XMLTV{}

	for _, dxc := range Data.XEPG.Channels {

		var xepgChannel XEPGChannelStruct
		err := json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)
		if err == nil {

			if xepgChannel.XActive == true {

				// Kanäle
				var channel Channel
				channel.ID = xepgChannel.XChannelID
				channel.Icon = Icon{Src: getCacheImageURL(xepgChannel.TvgLogo)}
				channel.DisplayName = append(channel.DisplayName, DisplayName{Value: xepgChannel.XName})

				xepgXML.Channel = append(xepgXML.Channel, &channel)

				// Programme

				*tmpProgram, err = getProgramData(xepgChannel)
				if err == nil {

					for _, program := range tmpProgram.Program {
						xepgXML.Program = append(xepgXML.Program, program)
					}

				}

			}

		}

	}

	var content, _ = xml.MarshalIndent(xepgXML, "  ", "    ")
	var xmlOutput = []byte(xml.Header + string(content))
	writeByteToFile(System.File.XML, xmlOutput)

	xepgXML = XMLTV{}

	//saveMapToJSONFile(System.File.Images, Data.Cache.ImageCache)

	return
}

// Programmdaten erstellen (createXMLTVFile)
func getProgramData(xepgChannel XEPGChannelStruct) (xepgXML XMLTV, err error) {

	var xmltvFile = System.Folder.Data + xepgChannel.XmltvFile
	var channelID = xepgChannel.XMapping

	var xmltv XMLTV

	if xmltvFile == System.Folder.Data+"xTeVe Dummy" {
		xmltv = createDummyProgram(xepgChannel)
	} else {

		err = getLocalXMLTV(xmltvFile, &xmltv)
		if err != nil {
			return
		}

	}

	for _, xmltvProgram := range xmltv.Program {

		if xmltvProgram.Channel == channelID {
			//fmt.Println(&channelID)
			var program = &Program{}

			// Channel ID
			program.Channel = xepgChannel.XChannelID
			program.Start = xmltvProgram.Start
			program.Stop = xmltvProgram.Stop

			// Title
			program.Title = xmltvProgram.Title

			// Sub title (Untertitel)
			program.SubTitle = xmltvProgram.SubTitle

			// Description (Beschreibung)
			program.Desc = xmltvProgram.Desc

			// Category (Kategorie)
			getCategory(program, xmltvProgram, xepgChannel)

			// Country (Länder)
			program.Country = xmltvProgram.Country

			// Program icon (Poster / Cover)
			getPoster(program, xmltvProgram, xepgChannel)

			// Language (Sprache)
			program.Language = xmltvProgram.Language

			// Episodes numbers (Episodennummern)
			getEpisodeNum(program, xmltvProgram, xepgChannel)

			// Video (Videoparameter)
			getVideo(program, xmltvProgram, xepgChannel)

			// Date (Datum)
			program.Date = xmltvProgram.Date

			// Previously shown (Wiederholung)
			program.PreviouslyShown = xmltvProgram.PreviouslyShown

			// New (Neu)
			program.New = xmltvProgram.New

			// Live
			program.Live = xmltvProgram.Live

			xepgXML.Program = append(xepgXML.Program, program)

		}

	}

	return
}

// Dummy Daten erstellen (createXMLTVFile)
func createDummyProgram(xepgChannel XEPGChannelStruct) (dummyXMLTV XMLTV) {

	var currentTime = time.Now()
	var dateArray = strings.Fields(currentTime.String())
	var offset = " " + dateArray[2]
	var currentDay = currentTime.Format("20060102")
	var startTime, _ = time.Parse("20060102150405", currentDay+"000000")

	showInfo("Create Dummy Guide:" + "Time offset" + offset + " - " + xepgChannel.XName)

	var dl = strings.Split(xepgChannel.XMapping, "_")
	dummyLength, err := strconv.Atoi(dl[0])
	if err != nil {
		ShowError(err, 000)
		return
	}

	for d := 0; d < 4; d++ {

		var epgStartTime = startTime.Add(time.Hour * time.Duration(d*24))

		for t := dummyLength; t <= 1440; t = t + dummyLength {

			var epgStopTime = epgStartTime.Add(time.Minute * time.Duration(dummyLength))

			var epg Program
			poster := Poster{}

			epg.Channel = xepgChannel.XMapping
			epg.Start = epgStartTime.Format("20060102150405") + offset
			epg.Stop = epgStopTime.Format("20060102150405") + offset
			epg.Title = append(epg.Title, &Title{Value: xepgChannel.XName + " (" + epgStartTime.Weekday().String()[0:2] + ". " + epgStartTime.Format("15:04") + " - " + epgStopTime.Format("15:04") + ")", Lang: "en"})
			epg.Desc = append(epg.Desc, &Desc{Value: "xTeVe: (" + strconv.Itoa(dummyLength) + " Minutes) " + epgStartTime.Weekday().String() + " " + epgStartTime.Format("15:04") + " - " + epgStopTime.Format("15:04"), Lang: "en"})

			if Settings.XepgReplaceMissingImages == true {
				poster.Src = getCacheImageURL(xepgChannel.TvgLogo)
				epg.Poster = append(epg.Poster, poster)
			}

			if xepgChannel.XCategory != "Movie" {
				epg.EpisodeNum = append(epg.EpisodeNum, &EpisodeNum{Value: epgStartTime.Format("2006-01-02 15:04:05"), System: "original-air-date"})
			}

			epg.New = &New{Value: ""}

			dummyXMLTV.Program = append(dummyXMLTV.Program, &epg)
			epgStartTime = epgStopTime

		}

	}

	return
}

// Kategorien erweitern (createXMLTVFile)
func getCategory(program *Program, xmltvProgram *Program, xepgChannel XEPGChannelStruct) {

	for _, i := range xmltvProgram.Category {

		category := &Category{}
		category.Value = i.Value
		category.Lang = i.Lang
		program.Category = append(program.Category, category)

	}

	if len(xepgChannel.XCategory) > 0 {

		category := &Category{}
		category.Value = xepgChannel.XCategory
		category.Lang = "en"
		program.Category = append(program.Category, category)

	}

	return
}

// Programm Poster Cover aus der XMLTV Datei laden
func getPoster(program *Program, xmltvProgram *Program, xepgChannel XEPGChannelStruct) {

	for _, poster := range xmltvProgram.Poster {
		poster.Src = getCacheImageURL(poster.Src)
		program.Poster = append(program.Poster, poster)
	}

	if Settings.XepgReplaceMissingImages == true {

		if len(xmltvProgram.Poster) == 0 {
			var poster Poster
			poster.Src = getCacheImageURL(xepgChannel.TvgLogo)
			program.Poster = append(program.Poster, poster)
		}

	}

}

// Episodensystem übernehmen, falls keins vorhanden ist und eine Kategorie im Mapping eingestellt wurden, wird eine Episode erstellt
func getEpisodeNum(program *Program, xmltvProgram *Program, xepgChannel XEPGChannelStruct) {

	program.EpisodeNum = xmltvProgram.EpisodeNum

	if len(xepgChannel.XCategory) > 0 && xepgChannel.XCategory != "Movie" {

		if len(xmltvProgram.EpisodeNum) == 0 {

			var timeLayout = "20060102150405"

			t, err := time.Parse(timeLayout, strings.Split(xmltvProgram.Start, " ")[0])
			if err == nil {
				program.EpisodeNum = append(program.EpisodeNum, &EpisodeNum{Value: t.Format("2006-01-02 15:04:05"), System: "original-air-date"})
			} else {
				ShowError(err, 0)
			}

		}

	}

	return
}

// Videoparameter erstellen (createXMLTVFile)
func getVideo(program *Program, xmltvProgram *Program, xepgChannel XEPGChannelStruct) {

	var video Video
	video.Present = xmltvProgram.Video.Present
	video.Colour = xmltvProgram.Video.Colour
	video.Aspect = xmltvProgram.Video.Aspect
	video.Quality = xmltvProgram.Video.Quality

	if len(xmltvProgram.Video.Quality) == 0 {

		if strings.Contains(strings.ToUpper(xepgChannel.XName), " HD") || strings.Contains(strings.ToUpper(xepgChannel.XName), " FHD") {
			video.Quality = "HDTV"
		}

		if strings.Contains(strings.ToUpper(xepgChannel.XName), " UHD") || strings.Contains(strings.ToUpper(xepgChannel.XName), " 4K") {
			video.Quality = "UHDTV"
		}

	}

	program.Video = video

	return
}

// Lokale Provider XMLTV Datei laden
func getLocalXMLTV(file string, xmltv *XMLTV) (err error) {

	if _, ok := Data.Cache.XMLTV[file]; !ok {

		// Cache initialisieren
		if len(Data.Cache.XMLTV) == 0 {
			Data.Cache.XMLTV = make(map[string]XMLTV)
		}

		// XML Daten lesen
		content, err := readByteFromFile(file)

		// Lokale XML Datei existiert nicht im Ordner: data
		if err != nil {
			ShowError(err, 1004)
			err = errors.New("Local copy of the file no longer exists")
			return err
		}

		// XML Datei parsen
		err = xml.Unmarshal(content, &xmltv)
		if err != nil {
			return err
		}

		Data.Cache.XMLTV[file] = *xmltv

	} else {
		*xmltv = Data.Cache.XMLTV[file]
	}

	return
}

// M3U Datei erstellen
func createM3UFile() {

	showInfo("XEPG:" + fmt.Sprintf("Create M3U file (%s)", System.File.M3U))
	_, err := buildM3U([]string{})
	if err != nil {
		ShowError(err, 000)
	}

	saveMapToJSONFile(System.File.URLS, Data.Cache.StreamingURLS)

	return
}

// XEPG Datenbank bereinigen
func cleanupXEPG() {

	showInfo("XEPG:" + fmt.Sprintf("Cleanup database"))
	Data.XEPG.XEPGCount = 0

	for id, dxc := range Data.XEPG.Channels {

		var xepgChannel XEPGChannelStruct
		err := json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)
		if err == nil {

			if indexOfString(xepgChannel.Name, Data.Cache.Streams.Active) == -1 {
				delete(Data.XEPG.Channels, id)
			} else {
				if xepgChannel.XActive == true {
					Data.XEPG.XEPGCount++
				}
			}

		}

	}

	err := saveMapToJSONFile(System.File.XEPG, Data.XEPG.Channels)
	if err != nil {
		ShowError(err, 000)
		return
	}

	showInfo("XEPG Channels:" + fmt.Sprintf("%d", Data.XEPG.XEPGCount))

	if len(Data.Streams.Active) > 0 && Data.XEPG.XEPGCount == 0 {
		showWarning(2005)
	}

	return
}

// Streaming URL für die Channels App generieren
func getStreamByChannelID(channelID string) (playlistID, streamURL string, err error) {

	err = errors.New("Channel not found")

	for _, dxc := range Data.XEPG.Channels {

		var xepgChannel XEPGChannelStruct
		err := json.Unmarshal([]byte(mapToJSON(dxc)), &xepgChannel)

		fmt.Println(xepgChannel.XChannelID)

		if err == nil {

			if channelID == xepgChannel.XChannelID {

				playlistID = xepgChannel.FileM3UID
				streamURL = xepgChannel.URL

				return playlistID, streamURL, nil
			}

		}

	}

	return
}