fetch("../device").then( function(text) { return text.text() } ).then( function(text2) { element = document.getElementById("deviceheader"); element.innerText = text2} )

function getTime() {
	fetch("../time"). then( function(text) { if(!text.ok) { throw text }; return text.text() }).then( function(text2) { timeobj = JSON.parse(text2); element = document.getElementById("rtc"); element.innerText = timeobj.mday + "." + (timeobj.month +1) + "." + (timeobj.year + 1900) + " " + addZero(timeobj.hour) + ":" + addZero(timeobj.minutes) + ":" + addZero(timeobj.seconds) }).catch(function(error) { console.log("failed to fetch the time") })
}

function addZero(num) {
	if (num < 10) {
		return "0" + num;
	}
	return num;
}

function getSystemTime() {
	date = new Date();
	element = document.getElementById("local");
	element.innerText = date.getDate() + "." + (date.getMonth() + 1) + "." + (date.getYear() + 1900) + " " + addZero(date.getHours()) + ":" + addZero(date.getMinutes()) + ":" + addZero(date.getSeconds());
}

function getAlarm() {
	fetch("../wkalrm").then(function(text) { if(!text.ok) { throw text }; return text.text() }).then( function(text2) { alarmdiv = document.getElementById("alarm"); alarmdiv.style.visibility="visible"; alarmtime=document.getElementById("alarm-time"); alarmobj=JSON.parse(text2); alarmtime.innerText = alarmobj.mday + "." + (alarmobj.month +1) + "." + (alarmobj.year + 1900) + " " + addZero(alarmobj.hour) + ":" + addZero(alarmobj.minutes) + ":" + addZero(alarmobj.seconds); alarm_status=document.getElementById("alarm-status"); alarm_status.innerText="Status: "; alarm_status.innerText += alarmobj.enabled ? " aktiviert" : " deaktiviert"; alarm_status.innerText += "\nAusgelöst: "; alarm_status.innerText += alarmobj.pending ? " ja" : " nein"}).catch( function(error) { console.log("alarm access failed") })
}
getSystemTime()
getNVRAM()
getAlarm()
getTime()

function getNVRAM()  {
	fetch("../nvmem").then(function(text) { if(!text.ok) { throw text }; return text.text() }).then( function(text2) { nvobj = JSON.parse(text2); element = document.getElementById("nvram-text"); element.innerText = nvobj.content; element2 = document.getElementById("nvram"); element2.style.visibility="visible"; }).catch( function(error) { console.log("error while reading nvram") })
}

function submitNvRAM() {
	nvobj = {};
	element = document.getElementById("nvram-text");
	nvobj.content = element.value;
	fetch("../nvmem", {method: "POST", body: JSON.stringify(nvobj)}).then( function(x) {alert("NVRAM erfolgreich geschrieben"); getNVRAM()}).catch( function(error) { alert("Fehler beim Schreiben in den NVRAM") })
}

function changeAlarm() {
	element = document.getElementById("alarm-time");
	if (element.childElementCount === 0) {
		fetch("../wkalrm").then(function(text) {return text.text() }).then( function(text2) { element.innerText = ""; textarea = document.createElement("textarea"); textarea.id = "alarmtext"; textarea.rows=1; textarea.cols=20; alarmobj = JSON.parse(text2); textarea.innerText = alarmobj.mday + "." + (alarmobj.month +1) + "." + (alarmobj.year + 1900) + " " + addZero(alarmobj.hour) + ":" + addZero(alarmobj.minutes) + ":" + addZero(alarmobj.seconds); element.appendChild(textarea)})
	} else {
		textelement = document.getElementById("alarmtext");
		alstring = textelement.value.split(" ");
		date = alstring[0].split(".");
		time = alstring[1].split(":");
		alobj = {
			"seconds": parseInt(time[2]),
			"minutes": parseInt(time[1]),
			"hour": parseInt(time[0]),
			"mday": parseInt(date[0]),
			"month": parseInt(date[1]) -1,
			"year": parseInt(date[2]) -1900,
			"wday": 0,
			"enabled": 1,
			"pending": 0
		}
		fetch("../wkalrm", {method: "POST", body: JSON.stringify(alobj)}).then(function() {textelement.remove(); getAlarm();}).then(function(x) {alert("Alarmzeitpunkt erfolgreich geändert!")}).catch(function(y) {alert("Fehler beim Schreiben des Alarms!")}) 	
	}
}

function changeRTC() {
	element = document.getElementById("rtc");
	if (element.childElementCount === 0) {
		fetch("../time").then(function(text) {return text.text() }).then( function(text2) { element.innerText = ""; textarea = document.createElement("textarea"); textarea.id = "rtctext"; textarea.rows=1; textarea.cols=20; timeobj = JSON.parse(text2); textarea.innerText = timeobj.mday + "." + (timeobj.month +1) + "." + (timeobj.year + 1900) + " " + addZero(timeobj.hour) + ":" + addZero(timeobj.minutes) + ":" + addZero(timeobj.seconds); element.appendChild(textarea);})
	} else {
		textelement = document.getElementById("rtctext");
		alstring = textelement.value.split(" ");
                date = alstring[0].split(".");
                time = alstring[1].split(":");
                tobj = {
                        "seconds": parseInt(time[2]),
                        "minutes": parseInt(time[1]),
                        "hour": parseInt(time[0]),
                        "mday": parseInt(date[0]),
                        "month": parseInt(date[1]) -1,
                        "year": parseInt(date[2]) -1900,
                        "wday": 1
                }
		fetch("../time", {method: "POST", body: JSON.stringify(tobj)}).then(function() {textelement.remove(); getTime();}).then(function(x) {alert("Zeit/Datum erfolgreich geschrieben!")}).catch(function(x) {alert("Fehler beim Schreiben von Uhrzeit bzw. Datum!")})
	}
}

function systoHC() {
        date = new Date();
	tobj = {
		"seconds": date.getSeconds(),
		"minutes": date.getMinutes(),
		"hour": date.getHours(),
		"mday": date.getDate(),
		"month": date.getMonth(),
		"year": date.getYear(),
		"wday": 6
	}
	fetch("../time", {method: "POST", body: JSON.stringify(tobj)}).then(function() {getTime();alert("Zeit erfolgreich mit RTC synchronisiert")}).catch(function(error) {"Fehler beim Synchronisieren mit der RTC!"})
}

function updateAll() {
	getTime()
	getSystemTime()
	getAlarm()
	getNVRAM()
}

intervallID = 0;

function configureIntervall() {
	if(intervallID == 0) {
		element = document.getElementById("intervaltext");
		intervallID = setInterval(updateAll, parseInt(element.value) * 1000);
	} else {
		alert("Intervall ist bereits konfiguriert, stoppe die Aktualisierung bitte zuerst!")
	}
}

function removeItervall() {
	clearInterval(intervallID)
	intervallID = 0;
}