const homeMQTT = {
    getMQTT: function () {
        const id = Math.random().toString(36).substring(7);
        const topic = "#";
        const connection = "wss://mqtt.nas.el-wa.org:443"
        mqttsolarTreeDone = false;
        // const connection = "ws://username:password@37.97.203.138:8083" // Works
        // const connection = "wss://public:public@public.cloud.shiftr.io" // Works
        const client = mqtt.connect(connection, {
            rejectUnauthorized: false,
        });

        client.on("message", messageReceived);
        client.on("connect", function () {
            client.subscribe("Raumtemp/#");
        });
        client.on("error", function (error) {
            //alert("MQTT Error: " + error);
        });
        client.on('end', function () {
            setTimeout(getMQTT, 5000);
            alert("MQTT Disconnected, try to reconnect in 5 secs.");
        })

        function getNestedProp(obj, path) {
            return path.split('/').reduce((acc, key) => acc && acc[key], obj);
        }
        function setNestedProp(obj, path, value) {
            var schema = obj;  // a moving reference to internal objects within obj
            var pList = path.split('/');
            var len = pList.length;
            for (var i = 0; i < len - 1; i++) {
            var elem = pList[i];
            if (!schema[elem]) schema[elem] = {}
            schema = schema[elem];
            }

            schema[pList[len - 1]] = value;
        }

        function messageReceived(topic, message) {
            setNestedProp(mqttData, topic, message);
            setTimeout(function () { homeSVG.updateValuesMQTT(mqttData) }, 200); //give the object tree some time to build up and receive all values
        }
    }
}

const homeSVG = {
    updateCnt: 99,
    fillElementArray: function () {
        
    },
    updateValuesMQTT: function (mqttData) {
        // homeRooms liefert restricted/rooms.php (in home.php eingebettet).
        // Jeder Raum bekommt die gleiche Behandlung - Raeume kommen dort dazu,
        // nicht hier.
        homeRooms.forEach(function (room) {
            const values = mqttData["Raumtemp"]?.[room.floor]?.[room.mqtt];
            if (!values) return;   // Topic noch nicht empfangen
            const el = (part) => document.getElementById(room.floor + "_" + part);

            if (typeof (values["Heating"]) != "undefined")
                el(room.id + "_heater").setAttribute("display", values["Heating"] == "false" ? "none" : "");
            if (typeof (values["mode"]) != "undefined")
                el(room.id + "_buffer").setAttribute("display", values["mode"] == "Overheating" ? "" : "none");
            if (typeof (values["Set Temp[degC]"]) != "undefined")
                el("pres_" + room.id).innerHTML = Math.floor(values["Set Temp[degC]"]) + "\u2009\u00b0C";
            if (typeof (values["Temp[degC]"]) != "undefined")
                el("tmp_" + room.id).innerHTML = values["Temp[degC]"] + "\u2009\u00b0C";
            if (typeof (values["rHum[%]"]) != "undefined")
                el("hum_" + room.id).innerHTML = values["rHum[%]"] + "\u2009%rF";
        });
    }

}

var currentFloor = "OG";

function addClass(el, classNameToAdd){
  el.className += ' ' + classNameToAdd;   
}

function removeClass(el, classNameToRemove){
  var elClass = ' ' + el.className + ' ';
  while(elClass.indexOf(' ' + classNameToRemove + ' ') !== -1){
       elClass = elClass.replace(' ' + classNameToRemove + ' ', '');
  }
  el.className = elClass;
}

function switchTab(newtab){
  newContent = document.getElementById(newtab);
  newTabBtn = document.getElementById(newtab+"-tab");
  removeClass(document.getElementById("actions-OG-tab"),"active");
  removeClass(document.getElementById("actions-EG-tab"),"active");
  removeClass(document.getElementById("actions-UG-tab"),"active");

  removeClass(document.getElementById("actions-OG"),"active show");
  removeClass(document.getElementById("actions-EG"),"active show");
  removeClass(document.getElementById("actions-UG"),"active show");
  addClass(newTabBtn,"active");
  addClass(newContent,"active show");


}


function switchFloor(floor){
  if(currentFloor == floor)
    return;
  const targetIn = document.getElementById(floor+'_Info');
  const targetOut = document.getElementById(currentFloor+'_Info');
  var blendIn = new KeyframeEffect(
    targetIn, [{opacity: '0'},{opacity: '100'}], 
    {
      duration: 500,
      easing: "ease-in-out",
      fill: "forwards",
      iterations: 1,
    }
  );
  var blendOut = new KeyframeEffect(
    targetOut, [{opacity: '100'},{opacity: '0'}], 
    {
      duration: 500,
      easing: "ease-in-out",
      fill: "forwards",
      iterations: 1,
    }
  );
  var inAnim = new Animation(blendIn,document.timeline);
  var outAnim = new Animation(blendOut,document.timeline);
  targetIn.setAttribute("display","");
  outAnim.onfinish= (event) => {
    targetOut.setAttribute("display","none");
  };
  inAnim.play();
  outAnim.play();
  currentFloor = floor;
}


  var modalEV = new bootstrap.Modal(document.getElementById('modalEV'), {
    keyboard: false
  });
  var offcanvas = new bootstrap.Offcanvas(document.getElementById('offcanvas'), {
    keyboard: false
  });
  
  var mqttData = {};

  function openHeaterSettings(heater){
    openRoomView(heater);
  }

  document.addEventListener('readystatechange', function () {
    if (event.target.readyState === "complete") {
      homeMQTT.getMQTT();
      mountMeteogram();
    }
  });


  /**
   * Alles, was in einem Raum haengt, auf einer Seite: Heizung, Rollladen,
   * Licht. Der Grundriss zeigt Raeume, also sollte ein Klick darauf den Raum
   * oeffnen - vorher kam nur der Temperaturregler, die Rollladen im selben
   * Zimmer waren von hier gar nicht erreichbar.
   *
   * Welche Geraete dazugehoeren, sagt die Raumzuordnung (actors.room).
   */
  function openRoomView(raum) {
    const teile = raum.toString().split("_");
    document.getElementById("modal-title").innerHTML =
      teile[0] + " · " + teile.slice(1).join(" ")
        .replace("ue", "ü").replace("ae", "ä").replace("oe", "ö");

    // Der Speichern-Knopf gehoert allen Modals gemeinsam. Ein Klon ohne
    // Zuhoerer stellt sicher, dass nicht auch der Handler eines vorher
    // geoeffneten Modals mitfeuert.
    const alt = document.getElementById("modalSaveBtn");
    const btn = alt.cloneNode(true);
    alt.replaceWith(btn);
    btn.addEventListener("click", () => sendeSolltemperatur(raum));

    const koerper = document.getElementById("modal-body");
    koerper.innerHTML = loadingHTML("Wird geladen...");
    modalEV.show();

    fetch("./ajax/room.php?room=" + encodeURIComponent(raum), {
      method: "GET",
      headers: { "X-Requested-From-Modal": "a", "Requested-With-Ajax": "ajax" }
    })
      .then(a => a.text())
      .then(html => {
        koerper.innerHTML = html;

        const slider = document.getElementById("modal-slider");
        if (slider) {
          bindModalSlider(slider, document.getElementById("modal-slider-label"),
                          wert => wert + " °C");
          const stand = mqttData["Raumtemp"]?.[teile[0]]?.[teile[1]]?.["Set Temp[degC]"];
          slider.value = typeof stand !== "undefined" ? stand : 10;
          slider.dispatchEvent(new Event("input"));
        }
        // Ohne Thermostat gibt es nichts zu speichern - dann waere der Knopf
        // eine Falle.
        btn.hidden = !slider;

        koerper.querySelectorAll("button[data-cmd]").forEach(k => {
          k.addEventListener("click", () => schalte(k));
        });
      })
      .catch(fehler => { koerper.innerHTML = "Konnte den Raum nicht laden: " + fehler.message; });
  }

  /** Ein Kommando des angeklickten Knopfes ausfuehren. */
  function schalte(knopf) {
    const zeile = knopf.closest("[data-cmdrow]");
    const params = {};
    if (zeile) {
      zeile.querySelectorAll("[data-param]").forEach(f => { params[f.dataset.param] = f.value; });
    }
    knopf.disabled = true;
    raumRequest("command", { command_id: Number(knopf.dataset.cmd), params: params })
      .then(antwort => {
        knopf.disabled = false;
        raumMeldung(antwort);
      });
  }

  function sendeSolltemperatur(raum) {
    const slider = document.getElementById("modal-slider");
    if (!slider) return;
    raumRequest("temp", { room: raum, temp: Number(slider.value) })
      .then(antwort => {
        raumMeldung(antwort);
        if (!antwort.error) setTimeout(() => modalEV.hide(), 700);
      });
  }

  function raumRequest(action, body) {
    return fetch("./ajax/room.php?action=" + action, {
      method: "POST",
      headers: { "Content-Type": "application/json", "Requested-With-Ajax": "ajax" },
      body: JSON.stringify(body)
    })
      .then(a => a.json())
      .catch(fehler => ({ error: fehler.message }));
  }

  /** Rueckmeldung im Modal statt als alert - man schaltet oft mehrmals. */
  function raumMeldung(antwort) {
    const ziel = document.getElementById("roomFeedback");
    if (!ziel) return;
    ziel.className = "small mt-2 " + (antwort.error ? "text-danger" : "text-body-secondary");
    ziel.textContent = antwort.error ? antwort.error : "✓ " + antwort.ok;
  }