//
//
//

const SENSOR_F_INVERSE = 1;
const SENSOR_F_ACTIVE = 2;

var sensors = [];


//
// update or add a new element
//
function sensor_Update(sdata) {
	for (var i = 0; i < sensors.length; i++) {
		if (sdata.name == sensors[i].name) {
			console.log ("Update Sensor:" + sensors[i].name + " with Sensor:" + sdata.name);
			sensors[i].name = sdata.name;
			sensors[i].ifname = sdata.ifname;
			sensors[i].addr = sdata.addr;
			sensors[i].flags = sdata.flags;
			return;
		}
	}
	
	// not found add element
	console.log ("Add Sensor:" + sdata.name);
	sensors.push ({
			name: sdata.name, 
			ifname: sdata.ifname,
			addr: sdata.addr,
			flags: sdata.flags
	});
};


//
// delete element from the list
// in arrays we can not delete just an element, so we create a new one 
// and replace this one.
//
function sensor_Delete(name) {
	var l = new Array();
	
	for (var i = 0; i < sensors.length; i++) {
		if (name != sensors[i].name) {
			l.push (sensors[i]);
		}
	}

	// clear list and replace list with new data.
	sensors.lenght = 0;
	sensors = l;
};


//
// send new element to server
//
function sensor_server_Add(elm) {
	var request = { command: "addsensor", sensor: elm };
	serverinout (request, serverinout_defaultCallback);
};


//
// send delete element to server
//
function sensor_server_Del(elm) {
	var request = { command: "delsensor", sensor: elm };
	serverinout (request, serverinout_defaultCallback);
};


//
// return if the sensor is active or not
//
function sensor_IsActive(name) {
	for (var i = 0; i < sensors.length; i++) {
		if (name == sensors[i].name) {
			if (sensors[i].flags & SENSOR_F_ACTIVE) return 1
			else return 0;
		}
	}
	return 0;
};





function sensordetail_show(name, create) {
	var win = document.getElementById("sensordetail");
	
	console.log ("sensordetail_show");
	
	if (!win) {
		console.log ("sensordetail_show create window");
		win = gWindowCreate("sensordetail", "Sensor", 400, 300, "			\
		<div style=\"float: left\"> \
		Sensor Name: <input id=\"sensor_name\" style=\"width: 100\"> \
		</div> <div style=\"float: right\"> \
		<button id=\"sensor_PREV\">&lt</button> \
		<button id=\"sensor_NEXT\">&gt</button> \
		</div> <br> <hr>\
		<div> \
		Interface: <input id=\"sensor_ifname\" style=\"width: 200\"> \
		Addr: <input id=\"sensor_addr\" style=\"width: 50\"> \
		Flags: <input id=\"sensor_flags\" style=\"width: 50\"> \
		</div> <hr>\
		<div align=right> \
		<button id=\"sensor_SAVE\" type=\"button\">Save</button> \
		<button id=\"sensor_DELETE\" type=\"button\">Delete</button> \
		<button id=\"sensor_CLOSE\">Close</button> \
		</div> \
		      \
		");
		
		gAddEventListener("sensor_CLOSE", 'click', sensordetail_cb_close);
		gAddEventListener("sensor_DELETE", 'click', sensordetail_cb_delete);
		gAddEventListener("sensor_SAVE", 'click', sensordetail_cb_save);

		gAddEventListener("sensor_NEXT", 'click', sensordetail_cb_next);
		gAddEventListener("sensor_PREV", 'click', sensordetail_cb_prev);
	}
	
	if (name) {
		for (var i = 0; i < sensors.length; i++) {
			if (name == sensors[i].name) sensordetail_setData(sensors[i]);
		}
	}
	
	if (create) {
		let rname = document.getElementById("sensor_name");
        if (rname.value != name && rname.value == "") rname.value = name;
	}

};


function sensordetail_cb_close () {
	var win = document.getElementById("sensordetail");

	if (win) document.body.removeChild(win);
};


//
// Callback: Delete Button
//
function sensordetail_cb_delete () {
	var elm = {};
	
	elm = sensordetail_getData();
	sensor_Delete(elm.name);
	sensor_server_Del(elm);
};


//
// Callback: Save Button
//
function sensordetail_cb_save () {
	var elm = {};
	
	elm = sensordetail_getData();
	sensor_Update(elm);
	sensor_server_Add(elm);
};


//
// Callback: Next Button
//
function sensordetail_cb_next () {
	var cursel = -1;
	var name = document.getElementById("sensor_name");

	for (var i = 0; i < sensors.length; i++) {
		if (name.value == sensors[i].name) cursel = i;
	}
	
	cursel = cursel + 1;
	if (cursel >= sensors.length) cursel = 0;
	if (cursel < 0) cursel = 0;
	
	for (var i = 0; i < sensors.length; i++) {
		if (i == cursel) sensordetail_setData(sensors[i]);
	}
	
	console.log ("Cursel: " + cursel + " sensors.lenght:" + sensors.length);
};


//
// Callback: Prev Button
//
function sensordetail_cb_prev () {
	var cursel = -1;
	var name = document.getElementById("sensor_name");


	for (var i = 0; i < sensors.length; i++) {
		if (name.value == sensors[i].name) cursel = i;
	}
	
	cursel = cursel - 1;
	if (cursel < 0 || cursel >= sensors.length) cursel = sensors.length - 1;
	
	for (var i = 0; i < sensors.length; i++) {
		if (i == cursel) sensordetail_setData(sensors[i]);
	}
	
	console.log ("Cursel: " + cursel + " sensors.lenght:" + sensors.length);
};


//
// fill out all the elements on the dialogbox
//
function sensordetail_setData(elm) {
	var name = document.getElementById("sensor_name");
	var ifname = document.getElementById("sensor_ifname");
	var addr = document.getElementById("sensor_addr");
	var flags = document.getElementById("sensor_flags");
	
	if (elm) {
		if (name) name.value = elm.name;
		if (ifname) ifname.value = elm.ifname;
		if (addr) addr.value = elm.addr;
		if (flags) flags.value = elm.flags;
	}
};



//
// return all elements from the dialogbox
//
function sensordetail_getData() {
	var res = { name: "", ifname: "", addr: 0, flags:0 };
	var name = document.getElementById("sensor_name");
	var ifname = document.getElementById("sensor_ifname");
	var addr = document.getElementById("sensor_addr");
	var flags = document.getElementById("sensor_flags");

	if (name) res.name = name.value;
	if (ifname) res.ifname = ifname.value;
	if (flags) res.flags = flags.value;
	if (addr) res.addr = addr.value;
	
	return res;
};


// ***********************************************************************************************
// ***********************************************************************************************
// sensorlist: show a list of sensors.
//
// ***********************************************************************************************
// ***********************************************************************************************
function sensorlist_show() {
	var win = document.getElementById("sensorlist");
	
	console.log ("sensorlist_show");
	
	if (!win) {
		console.log ("sensorlist_show create window");
		win = gWindowCreate("sensorlist", "Sensors", 400, 500, "			\
		<div id=\"sensorlist_listdiv\"> \
		<ul id=\"sensorlist_elements\" style=\"list-style-type:none\"></ul>	\
		</div> \
		<div align=right> \
		<button id=\"sensorlist_CLOSE\" type=\"button\">Close</button> \
		</div> \
		      \
		");
		
		gAddEventListener("sensorlist_CLOSE", 'click', sensorlist_cb_close);
	}
	
	var ul = document.getElementById("sensorlist_elements");

	//
	// sort list
	var ssorted = new Array();
	for (var i = 0; i < sensors.length; i++) {
		ssorted.push(sensors[i].name);
	}
	ssorted.sort();	
	
	//
	// append all sensors
	for (var i = 0; i < ssorted.length; i++) {
		let li = document.createElement("li");
		li.appendChild(document.createTextNode(ssorted[i]));
		li.setAttribute("id", "sensor_elm_"+ssorted[i]);
		ul.appendChild(li);
		
		gAddEventListener("sensor_elm_"+ssorted[i], 'click', sensorlist_clicked);
	}

};


function sensorlist_clicked() {
	var i;
	
	console.log ("childnodes: " + this.childNodes[0].textContent);
	sensordetail_show(this.childNodes[0].textContent);
};



function sensorlist_cb_close () {
	var win = document.getElementById("sensorlist");

	if (win) document.body.removeChild(win);
};



// ***********************************************************************************************
// ***********************************************************************************************
// sensor contextmenu: show a context menu for the sensor
//
// ***********************************************************************************************
// ***********************************************************************************************
function sensor_contextmenu(name) {
    let innerhtml = "";

    innerhtml = "<center>";
    innerhtml += "<button id=\"contextbox_On\" type=\"button\">Set On</button><br>";
    innerhtml += "<button id=\"contextbox_Off\" type=\"button\">Set Off</button><br>";
    innerhtml += "<button id=\"contextbox_Close\" type=\"button\">Close</button></center>";

	gContextmenuCreate(name, innerhtml);

	gAddEventListener("contextbox_On", 'click', sensor_ctxmenu_On);
	gAddEventListener("contextbox_Off", 'click', sensor_ctxmenu_Off);
	gAddEventListener("contextbox_Close", 'click', gContextmenuClose);
};



function sensor_ctxmenu_On (element, value) {
    let name = document.getElementById("ConextMenuHead").innerHTML;
   	sensor_server_setactive(name, "1");
	gContextmenuClose();
}

function sensor_ctxmenu_Off (element, value) {
    let name = document.getElementById("ConextMenuHead").innerHTML;
   	sensor_server_setactive(name, "0");
	gContextmenuClose();
}


//
// send sensor activate and deactivate to server
//
function sensor_server_setactive(name, value) {
	var request = { command: "sensorSetActive", sensor: name, enabled: value };
	console.log ("send sensor active:" + name);
	serverinout (request, serverinout_defaultCallback);
};