// verschiedene Vorgaben
var arrType = new Array("gewitter_","wind_","regen_","schnee_","nebel_","frost_","eis_","tau_","hitze","uv");
var arrFarben = new Array("#C5E566","#FFFF00","#FA9600","#E53935","#AF0064","#FE68FE");
var stationAltitude = 103;

// States anlegen
createState("javascript.0.DwdExp", 0, false,
        {read: true, write: false, name: "DWD Expand Message 1 - 10", type: "number", def: 0, role: "info"});

for (var No = 1; No < 11; No++) {   

    createState("javascript.0.DwdExp.Message" + No, "", false,
        {type: "channel", name: "Daten Meldung Nr. " + No, role: "forecast"});
    
    createState("javascript.0.DwdExp.Message" + No + ".start", "", false,
        {read: true, write: false, name: "Warnzeitraum Beginn", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".end", "", false,
        {read: true, write: false, name: "Warnzeitraum Ende", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".type", NaN, false,
        {read: true, write: true, name: "Art der Warnung", type: "number", def: NaN, role: "value", min: 0, max: 9, 
            states: "0:Gewitter; 1:Wind/Sturm; 2:Regen; 3:Schnee; 4:Nebel; 5:Frost; 6:Eis; 7:Tauwetter; 8:Hitzebelastung; 9:UV-Belastung"});
    
    createState("javascript.0.DwdExp.Message" + No + ".level", NaN, false,
        {read: true, write: true, name: "Warnstufe", type: "number",  def: NaN, role: "value", min: 0, max: 5,
            states: "1:Vorabinformation Unwetter; 2:Amtliche Wetterwarnung; 3:Amtliche Warnung vor markantem Wetter; 4:Amtliche Unwetterwarnung; 5:Amtliche Warnung vor extremem Unwetter"});
    
    createState("javascript.0.DwdExp.Message" + No + ".severity", "0", false,
        {read: true, write: false, name: "Schwere der Warnstufe", type: "number", def: "0", role: "value", min: 0, max: 4,
            states: "0:None; 1:Minor; 2:Moderate; 3:Severe; 4:Extreme"});
    
    createState("javascript.0.DwdExp.Message" + No + ".headline", "0", false,
        {read: true, write: false, name: "Warntyp Überschrift", type: "string", def: "undefined", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".description", "", false,
        {read: true, write: false, name: "Warntyp Beschreibung", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".event", "", false,
        {read: true, write: false, name: "Warntyp Stichwort", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".instruction", "", false,
        {read: true, write: false, name: "Warntyp Handlungsratschläge", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".period", "", false,
        {read: true, write: false, name: "Warnzeitraum", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".colour", "C5E566", false,
        {read: true, write: false, name: "Level Farbe", type: "string", def: "C5E566", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".icon", "", false,
        {read: true, write: false, name: "Level Icon", type: "string", def: "", role: "text"});
    
    createState("javascript.0.DwdExp.Message" + No + ".visible", false, false,
        {read: true, write: false, name: "Sichtbarkeit des Icon", type: "boolean", def: false, role: "indicator.state"});
    
    createState("javascript.0.DwdExp.Message" + No + ".origin", "", false,
        {read: true, write: false, name: "Original Message", type: "string", def: "", role: "text"});
}

// Prüfen ob ein JSON-Objekt gültig ist.
function isValidObject(obj) {
    var retVal = false;
    var count = Object.keys(obj).length;
    if (count > 2) { retVal = true; }
    
    log("isValidObj = " + retVal);
    return retVal;
}

function isValidAltitude(obj) {
    var retVal = false;
    
    if ((obj.altitudeStart === null) || ((stationAltitude > obj.altitudeStart) && ((stationAltitude < obj.altitudeEnd) || (obj.altitudeEnd === null)))) { retVal = true; }
    
    log("isValidAltitude = " + retVal + ", Höhen => Station " + stationAltitude + " Start " + obj.altitudeStart + " Ende " + obj.altitudeEnd);
    return retVal;
}

// Prüfen wieviel Meldungen aktiv sind
function getActiveMessageCount() {
    var activeCount = 0;
    
    for (var a = 0; a < 10; a++){
        if (a === 0) {
            getState("dwd.0.warning.severity").val > 0 ? activeCount++ : null;
        } else {
            getState("dwd.0.warning" + a + ".severity").val > 0 ? activeCount++ : null;
        }
    }
    
    log("getActiveMessageCount = " + activeCount);
    return activeCount;
}

function getSeverity(lev) {
    if (lev === 0) {
        return 0;
    } else if (lev === 1) {
        return 1;
    } else {
        return lev - 1;
    }
}

// aktuelle Zeit liegt zwischen der Anfangs- und Endzeit der Warnung. Das Ereignis ist eingetreten.
function isActive(start, end) {
    var retVal = compareTime(start, end, "between");

    log("isActive = " + retVal + " input Start: " + start + " End: " + end);    
    return retVal;
}

// Aus einer Zeit einen formatierten String mit heute, morgen, übermorgen oder einem Datum mit Uhrzeit zurückgeben
function getTimeString(toConvert) {
    var retVal = "";

    // Heute
    var Tag0 = new Date();
        Tag0.setHours(23, 59, 59);
    // Morgen
    var Tag1 = new Date(Tag0);
        Tag1.setDate(Tag1.getDate() + 1);
    // Übermorgen
    var Tag2 = new Date(Tag0);
        Tag2.setDate(Tag2.getDate()+2);
    
    if (toConvert < Tag0) {
        retVal = "heute " + formatDate(toConvert, "hh:mm") + " Uhr";
    } else if ((toConvert > Tag0) && (toConvert < Tag1)) {
        retVal = "morgen " + formatDate(toConvert, "hh:mm") + " Uhr";
    } else if ((toConvert > Tag1) && (toConvert < Tag2)) {
        retVal = "übermorgen " + formatDate(toConvert, "hh:mm") + " Uhr";
    } else {
        retVal = formatDate(toConvert, "DD.MM.YYYY, hh:mm");
    }
    
    log("getTimeString = " + retVal + " input = " + toConvert);
    return retVal;
}

// String zur Beschreibung des Warnzeitraumes erstellt: z. B. AKTIV bis heute 18:30 Uhr oder heute 23:00 bis morgen 09:00 Uhr 
function createTimeString(start, end) {
    var retVal = "";
    
    if (isActive(start, end)) {
        retVal = "AKTIV bis " + getTimeString(end);
    } else {
        retVal = getTimeString(start) + " bis " + getTimeString(end);
    }
    
    log("createTimeString = " + retVal + " input = Start: " + start + " End: " + end);
    return retVal;
}

// entsprechenden String mit dem Pfad zum Icon und der entsprechenden Bezeichnung des Bildes erstellen
function createIconString(type, level) {
    var retVal = "";

    if (level === 1) {
        retVal ="/vis/img/dwd/vorab.png";
    } else {
        retVal = "/vis/img/dwd/warn_icons_" + arrType[type];
    
        if ((type >= 0) && (type <= 7)) { retVal += level - 1; }
    
        retVal += ".png";
    }

    log("createIconString = " + retVal + " input = Type: " + type + " Level: " + level);
    return retVal;
}


function sortMessageArr(objA, objB) {
    var retVal;

    if (objA.level < objB.level) {
        log("Objekt A Level => " + objA.level + " ist kleiner als B Level => " + objB.level + " = B vor A");
        retVal = 1;
    } else if (objA.level > objB.level) {
        log("Objekt A Level => " + objA.Level + " ist größer als B Level => " + objB.level + " = A vor B");
        retVal = -1;
    } else {
        if (objA.start < objB.start) {
            log("Objekt A Start => " + objA.start + " ist kleiner als B Start => " + objB.start + " = A vor B");
            retVal = -1;
        } else if (objA.start > objB.start) {
            log("Objekt A Start => " + objA.start + " ist größer als B Start => " + objB.start + " = B vor A");
            retVal = 1;
        } else {
            if (objA.end < objB.end) {
                log("Objekt A Ende => " + objA.end + " ist kleiner als B Ende => " + objB.end + " = A vor B");
                retVal = -1;
            } else if (objA.end > objB.end) {
                log("Objekt A Ende => " + objA.end + " ist größer als B Ende => " + objB.end + " = B vor A");
                retVal = 1;
            } else {
                if (objA.type < objB.type) {
                    log("Objekt A Typ => " + objA.type + " ist kleiner als B Typ => " + objB.typ + " = A vor B");
                    retVal = -1;
                } else if (objA.type > objB.type) {
                    log("Objekt A Typ => " + objA.type + " ist größer als B Typ => " + objB.typ + " = B vor a");
                    retVal = 1;
                } else {
                    log("Es gibt keinen Unterschied daher Sortierung egal.");
                    retVal = 0;
                }
            }
        }
    }
    return retVal;
}

function getColour(lev, typ) {
    var retVal;
    
    if ((typ >= 8)) {
        retVal = arrFarben[5];
    } else {
        retVal = arrFarben[lev - 1];
    }
    
    log("getColour => " + retVal);
    return retVal;
}

function getMessages() {
    var count = getActiveMessageCount();
    var validCount = 0;
    var object = null;
    var objDwd = [];
    
    for (var b = 0; b < count; b++) {
        if (b === 0) {
            object = JSON.parse(getState("dwd.0.warning.object").val);
        } else {
            object = JSON.parse(getState("dwd.0.warning" + b + ".object").val);
        }
        if (isValidObject(object) && isValidAltitude(object)) {
            objDwd[validCount] = new Object({
                start: formatDate(object.start, "DD.MM.YYYY, hh:mm"),
                end: formatDate(object.end, "DD.MM.YYYY, hh:mm"),
                type: object.type,
                level: object.level,
                severity: getSeverity(object.level),
                headline: object.headline,
                description: object.description,
                event: object.event,
                instruction: object.instruction,
                period: createTimeString(object.start, object.end),
                icon: createIconString(object.type, object.level),
                colour: getColour(object.level, object.type),
                origin: b === 0 ? "dwd.0.warning" : "dwd.0.warning" + b,
                visible: true
            });
            validCount++;
        }
    }
    
    log("getMessage => Valid Counts: " + validCount);
    setState("javascript.0.DwdExp", validCount);
    objDwd.sort(sortMessageArr);
    
    for (var c = 0; c < 10; c++) {
        log("Counter c = " + c + " validCount = " + validCount);
        var d = c + 1;
        var strState = "javascript.0.DwdExp.Message" + d;
        if (c < validCount) {
            log("ObjectIsValid");
            setState(strState + ".start", objDwd[c].start);
            setState(strState + ".end", objDwd[c].end);
            setState(strState + ".type", objDwd[c].type);
            setState(strState + ".level", objDwd[c].level);
            setState(strState + ".severity", objDwd[c].severity);
            setState(strState + ".headline", objDwd[c].headline);
            setState(strState + ".description", objDwd[c].description);
            setState(strState + ".event", objDwd[c].event);
            setState(strState + ".instruction", objDwd[c].instruction);
            setState(strState + ".period", objDwd[c].period);
            setState(strState + ".icon", objDwd[c].icon);
            setState(strState + ".colour", objDwd[c].colour);
            setState(strState + ".origin", objDwd[c].origin);
            setState(strState + ".visible", objDwd[c].visible);
        } else {
            setState(strState + ".start", "");
            setState(strState + ".end", "");
            setState(strState + ".type", NaN);
            setState(strState + ".level", NaN);
            setState(strState + ".severity", 0);
            setState(strState + ".headline", "");
            setState(strState + ".description", "");
            setState(strState + ".event", "");
            setState(strState + ".instruction", "");
            setState(strState + ".period", "");
            setState(strState + ".icon", "");
            setState(strState + ".colour", arrFarben[0]);
            setState(strState + ".origin", "");
            setState(strState + ".visible", false);
        }
    }
}

getMessages();

on("dwd.0.warning.object",function() {getMessages()}, "ne");
on("dwd.0.warning1.object",function() {getMessages()}, "ne");
on("dwd.0.warning2.object",function() {getMessages()}, "ne");
on("dwd.0.warning3.object",function() {getMessages()}, "ne");
on("dwd.0.warning4.object",function() {getMessages()}, "ne");
on("dwd.0.warning5.object",function() {getMessages()}, "ne");
on("dwd.0.warning6.object",function() {getMessages()}, "ne");
on("dwd.0.warning7.object",function() {getMessages()}, "ne");
on("dwd.0.warning8.object",function() {getMessages()}, "ne");
on("dwd.0.warning9.object",function() {getMessages()}, "ne");