//
//
//

var blocks = [];
const BLOCK_F_OFF              = 0x0001;
const BLOCK_F_SPLIT            = 0x0002;
const BLOCK_F_SPLITPOS         = 0x0004;
const BLOCK_F_SHORT            = 0x0010;
const BLOCK_F_ENDSTATION       = 0x0040;
const BLOCK_F_STATION          = 0x0080;
const BLOCK_F_SPEEDLIMIT       = 0x0100;
const BLOCK_F_ONLYCARGO        = 0x0200;
const BLOCK_F_ONLYPASSENGER    = 0x0400;

//
// update or add a new element
//
function block_Update(blockdata) {
	for (var i = 0; i < blocks.length; i++) {
		if (blockdata.name == blocks[i].name) {
			blocks[i].name = blockdata.name;
			blocks[i].flags = blockdata.flags;
			blocks[i].lockedby = blockdata.lockedby;
			blocks[i].sensor_stop_0 = blockdata.sensor_stop_0,
			blocks[i].sensor_shortstop_0 = blockdata.sensor_shortstop_0,
			blocks[i].sensor_slow_0 = blockdata.sensor_slow_0,
			blocks[i].sensor_enter_0 = blockdata.sensor_enter_0,
			blocks[i].sensor_stop_1 = blockdata.sensor_stop_1,
			blocks[i].sensor_shortstop_1 = blockdata.sensor_shortstop_1,
			blocks[i].sensor_slow_1 = blockdata.sensor_slow_1,
			blocks[i].sensor_enter_1 = blockdata.sensor_enter_1,
			blockdetail_setData(blocks[i]);
			return;
		}
	}
	
	// not found add element
	//console.log ("Add Interface:" + intdata.name + "(" + intdata.host + ")");
	blocks.push ({
			name: blockdata.name, 
			flags: blockdata.flags,
			lockedby: blockdata.lockedby,
			sensor_enter_0: blockdata.sensor_enter_0,
			sensor_slow_0: blockdata.sensor_slow_0,
			sensor_stop_0: blockdata.sensor_stop_0,
			sensor_shortstop_0: blockdata.sensor_shortstop_0,
			sensor_enter_1: blockdata.sensor_enter_1,
			sensor_slow_1: blockdata.sensor_slow_1,
			sensor_stop_1: blockdata.sensor_stop_1,
			sensor_shortstop_1: blockdata.sensor_shortstop_1
	});
};


//
// 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 block_Delete(name) {
	var l = new Array();
	
	for (var i = 0; i < blocks.length; i++) {
		if (name != blocks[i].name) {
			l.push (blocks[i]);
		}
	}

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



function block_contextmenu(name) {
    let innerhtml = "";

    innerhtml = "<center><label><select id=\"contextbox_loc\">";
    innerhtml += "<option value=\"\"></option>";
	for (var i = 0; i < locomotives.length; i++) {
		if (locomotives[i].name) 
			innerhtml += "<option value=\""+locomotives[i].name+"\">"+locomotives[i].name+"</option>";
	}
    innerhtml += "</select></label><br>";
    innerhtml += "<button id=\"contextbox_AsgnLU\" type=\"button\">Assign &lArr;&uArr;</button><br>";
    innerhtml += "<button id=\"contextbox_AsgnRD\" type=\"button\">Assign &rArr;&dArr;</button><br>";
    innerhtml += "<button id=\"contextbox_SetDLU\" type=\"button\">Go &lArr;&uArr;</button><br>";
    innerhtml += "<button id=\"contextbox_SetDRD\" type=\"button\">Go &rArr;&dArr;</button><hr>";
    innerhtml += "<button id=\"contextbox_Clear\" type=\"button\">Clear</button><br>";
    innerhtml += "<button id=\"contextbox_Off\" type=\"button\">Off</button><hr>";
    innerhtml += "<button id=\"contextbox_Close\" type=\"button\">Close</button></center>";

	gContextmenuCreate(name, innerhtml);

	gAddEventListener("contextbox_AsgnLU", 'click', block_ctxmenu_AssignLU);
	gAddEventListener("contextbox_AsgnRD", 'click', block_ctxmenu_AssignRD);
	gAddEventListener("contextbox_SetDLU", 'click', block_ctxmenu_DestinationLU);
	gAddEventListener("contextbox_SetDRD", 'click', block_ctxmenu_DestinationRD);
	gAddEventListener("contextbox_Clear", 'click', block_ctxmenu_Clear);
	gAddEventListener("contextbox_Off", 'click', block_ctxmenu_Off);
	gAddEventListener("contextbox_Close", 'click', gContextmenuClose);
};


function block_ctxmenu_DestinationLU (element, value) {
	let loc = document.getElementById("contextbox_loc");
    let name = document.getElementById("ConextMenuHead").innerHTML;
	if (loc) {
    	locomotive_server_Dest(loc.value, name, 1);
	}
	gContextmenuClose();
};


function block_ctxmenu_DestinationRD (element, value) {
	let loc = document.getElementById("contextbox_loc");
    let name = document.getElementById("ConextMenuHead").innerHTML;
	if (loc) {
    	locomotive_server_Dest(loc.value, name, 0);
	}
	gContextmenuClose();
};


function block_ctxmenu_AssignLU (element, value) {
	let loc = document.getElementById("contextbox_loc");
    let name = document.getElementById("ConextMenuHead").innerHTML;
	if (loc) {
    	locomotive_server_Assign(loc.value, name, 1);
	}
	gContextmenuClose();
};


function block_ctxmenu_AssignRD (element, value) {
	let loc = document.getElementById("contextbox_loc");
    let name = document.getElementById("ConextMenuHead").innerHTML;
	if (loc) {
    	locomotive_server_Assign(loc.value, name, 0);
	}
	gContextmenuClose();
};


function block_ctxmenu_Clear (element, value) {
    let name = document.getElementById("ConextMenuHead").innerHTML;
   	block_server_Clear(name);
	gContextmenuClose();
}

function block_ctxmenu_Off (element, value) {
    let name = document.getElementById("ConextMenuHead").innerHTML;
   	block_server_Off(name);
	gContextmenuClose();
}


//
// send new element to server
//
function block_server_Add(elm) {
	var request = { command: "addblock", block: elm };
	serverinout (request, serverinout_defaultCallback);
};


//
// send delete element to server
//
function block_server_Del(elm) {
	var request = { command: "delblock", block: elm };
	serverinout (request, serverinout_defaultCallback);
};


//
// send clear block
//
function block_server_Clear(blockname) {
	var request = { command: "blockclear", block: blockname };
	serverinout (request, serverinout_defaultCallback);
};


//
// send put block off service
//
function block_server_Off(blockname) {
	var request = { command: "blockoff", block: blockname };
	console.log ("send BlockOff:" + blockname);
	serverinout (request, serverinout_defaultCallback);
};


//
// if create is set the name should be filled in
function blockdetail_fillsensor() {
	let r = "<option value=\"\"></option>";
   	for (var i = 0; i < sensors.length; i++) {
   		if (sensors[i].name) 
   			r += "<option value=\""+sensors[i].name+"\">"+sensors[i].name+"</option>";
   	};
	return r;
}


function blockdetail_show(name, create) {
	var win = document.getElementById("blockdetail");
	let innerHTML = "			\
		<div style=\"float: left\"> \
		Block Name: <input id=\"blockdet_name\" style=\"width: 100\"> \
		</div> <div style=\"float: right\"> \
		<button id=\"blockdet_PREV\">&lt</button> \
		<button id=\"blockdet_NEXT\">&gt</button> \
		</div><br><hr>\
		<div>\
		\
		<table><tr><td>\
		\
		<table><tr> \
		<td><label><input id=\"blockdet_flagoff\" type=\"checkbox\" value=\"\" disabled>Off Service</label></td> \
		<td><label><input id=\"blockdet_flagonlycargo\" type=\"checkbox\" value=\"\">Only Cargo</label></td> \
		<td><label><input id=\"blockdet_flagshort\" type=\"checkbox\" value=\"\">Short</label></td> \
		</tr><tr> \
		<td><label><input id=\"blockdet_flagend\" type=\"checkbox\" value=\"\">End</label></td> \
		<td><label><input id=\"blockdet_flagonlypassenger\" type=\"checkbox\" value=\"\">Only Passenger</label></td> \
		<td><label><input id=\"blockdet_flagsplit\" type=\"checkbox\" value=\"\">Split</label></td> \
		</tr><tr> \
		<td><label><input id=\"blockdet_flagspeedlimit\" type=\"checkbox\" value=\"\">Speed Limit</label></td> \
		<td><label><input id=\"blockdet_flagstation\" type=\"checkbox\" value=\"\">Station</label></td> \
		<td><label><input id=\"blockdet_flagsplitpos\" type=\"checkbox\" value=\"\">Splitpos</label></td> \
		</tr><tr> \
		<td></td> \
        </tr></table> \
        \
        </td><td></td></tr></table> \
        <fieldset><legend>Automatic Mode</legend><table> \
        <tr><td>Lockedby:</td><td><input id=\"blockdet_lockedby\" style=\"width: 100\" disabled></td></tr>"

	innerHTML += "<table><tr><td></td><td>enter</td><td>slow</td><td>shortstop</td><td>stop</td></tr>";
	innerHTML += "<tr><td>Direction &rarr;&darr;:</td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_enter_0\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_slow_0\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_shortstop_0\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_stop_0\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "</tr>";

	innerHTML += "<tr><td>Direction &larr;&uarr;:</td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_enter_1\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_slow_1\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_shortstop_1\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "<td align=center><label><select id=\"blockdet_sensor_stop_1\">" + blockdetail_fillsensor() + "</select></label></td>";
	innerHTML += "</tr></table>";
	
	innerHTML += "</td></tr></table></fileset>\
		 </div> <hr>\
		<div align=right> \
		<button id=\"blockdet_SAVE\" type=\"button\">Save</button> \
		<button id=\"blockdet_DELETE\" type=\"button\">Delete</button> \
		<button id=\"blockdet_CLOSE\">Close</button> \
		</div> \
		      \
		";
	console.log ("blockdetail_show");
	
	if (!win) {
		console.log ("blockdetail_show create window");
		win = gWindowCreate("blockdetail", "Block", 500, 400, innerHTML);

		gAddEventListener("blockdet_CLOSE", 'click', blockdetail_cb_close);
		gAddEventListener("blockdet_DELETE", 'click', blockdetail_cb_delete);
		gAddEventListener("blockdet_SAVE", 'click', blockdetail_cb_save);

		gAddEventListener("blockdet_NEXT", 'click', blockdetail_cb_next);
		gAddEventListener("blockdet_PREV", 'click', blockdetail_cb_prev);
	}
	
	if (name) {
		for (var i = 0; i < blocks.length; i++) {
			if (name == blocks[i].name) blockdetail_setData(blocks[i]);
		}
	}

	if (create) {
		let rname = document.getElementById("blockdet_name");
        if (rname.value != name) rname.value = name;
	}
};


function blockdetail_cb_close () {
	var win = document.getElementById("blockdetail");

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


//
// Callback: Delete Button
//
function blockdetail_cb_delete () {
	var elm = {};
	
	elm = blockdetail_getData();
	block_Delete(elm.name);
	block_server_Del(elm);
};


//
// Callback: Save Button
//
function blockdetail_cb_save () {
	var elm = {};
	
	elm = blockdetail_getData();
	block_Update(elm);
	block_server_Add(elm);
};


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

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


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


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


//
// fill out all the elements on the dialogbox
//
function blockdetail_setData(elm) {
	var name = document.getElementById("blockdet_name");
	var flagoff = document.getElementById("blockdet_flagoff");
	var flagshort = document.getElementById("blockdet_flagshort");
	var flagsplit = document.getElementById("blockdet_flagsplit");
	var flagsplitpos = document.getElementById("blockdet_flagsplitpos");
	var flagend = document.getElementById("blockdet_flagend");
	var flagonlycargo = document.getElementById("blockdet_flagonlycargo");
	var flagonlypassenger = document.getElementById("blockdet_flagonlypassenger");
	var flagstation = document.getElementById("blockdet_flagstation");
	var flagspeedlimit = document.getElementById("blockdet_flagspeedlimit");
	var sensor_enter_0 = document.getElementById("blockdet_sensor_enter_0");
	var sensor_slow_0 = document.getElementById("blockdet_sensor_slow_0");
	var sensor_stop_0 = document.getElementById("blockdet_sensor_stop_0");
	var sensor_shortstop_0 = document.getElementById("blockdet_sensor_shortstop_0");
	var sensor_enter_1 = document.getElementById("blockdet_sensor_enter_1");
	var sensor_slow_1 = document.getElementById("blockdet_sensor_slow_1");
	var sensor_stop_1 = document.getElementById("blockdet_sensor_stop_1");
	var sensor_shortstop_1 = document.getElementById("blockdet_sensor_shortstop_1");
	var lockedby = document.getElementById("blockdet_lockedby");

	if (elm) {
		if (name) name.value = elm.name;
		if (flagoff) flagoff.checked = Number(elm.flags) & BLOCK_F_OFF;
		if (flagshort) flagshort.checked = Number(elm.flags) & BLOCK_F_SHORT;
		if (flagsplit) flagsplit.checked = Number(elm.flags) & BLOCK_F_SPLIT;
		if (flagsplitpos) flagsplitpos.checked = Number(elm.flags) & BLOCK_F_SPLITPOS;
		if (flagend) flagend.checked = Number(elm.flags) & BLOCK_F_ENDSTATION;
		if (flagonlycargo) flagonlycargo.checked = Number(elm.flags) & BLOCK_F_ONLYCARGO;
		if (flagonlypassenger) flagonlypassenger.checked = Number(elm.flags) & BLOCK_F_ONLYPASSENGER;
		if (flagstation) flagstation.checked = Number(elm.flags) & BLOCK_F_STATION;
		if (flagspeedlimit) flagspeedlimit.checked = Number(elm.flags) & BLOCK_F_SPEEDLIMIT;
		if (sensor_enter_0) sensor_enter_0.value = elm.sensor_enter_0;
		if (sensor_slow_0) sensor_slow_0.value = elm.sensor_slow_0;
		if (sensor_stop_0) sensor_stop_0.value = elm.sensor_stop_0;
		if (sensor_shortstop_0) sensor_shortstop_0.value = elm.sensor_shortstop_0;
		if (sensor_enter_1) sensor_enter_1.value = elm.sensor_enter_1;
		if (sensor_slow_1) sensor_slow_1.value = elm.sensor_slow_1;
		if (sensor_stop_1) sensor_stop_1.value = elm.sensor_stop_1;
		if (sensor_shortstop_1) sensor_shortstop_1.value = elm.sensor_shortstop_1;
		if (lockedby) lockedby.value = elm.lockedby;
	}
};



//
// return all elements from the dialogbox
//
function blockdetail_getData() {
	var res = { name: "", flags:0 };
	var name = document.getElementById("blockdet_name");
	var flagoff = document.getElementById("blockdet_flagoff");
	var flagshort = document.getElementById("blockdet_flagshort");
	var flagsplit = document.getElementById("blockdet_flagsplit");
	var flagsplitpos = document.getElementById("blockdet_flagsplitpos");
	var flagend = document.getElementById("blockdet_flagend");
	var flagonlycargo = document.getElementById("blockdet_flagonlycargo");
	var flagonlypassenger = document.getElementById("blockdet_flagonlypassenger");
	var flagstation = document.getElementById("blockdet_flagstation");
	var flagspeedlimit = document.getElementById("blockdet_flagspeedlimit");
	var sensor_enter_0 = document.getElementById("blockdet_sensor_enter_0");
	var sensor_slow_0 = document.getElementById("blockdet_sensor_slow_0");
	var sensor_stop_0 = document.getElementById("blockdet_sensor_stop_0");
	var sensor_shortstop_0 = document.getElementById("blockdet_sensor_shortstop_0");
	var sensor_enter_1 = document.getElementById("blockdet_sensor_enter_1");
	var sensor_slow_1 = document.getElementById("blockdet_sensor_slow_1");
	var sensor_stop_1 = document.getElementById("blockdet_sensor_stop_1");
	var sensor_shortstop_1 = document.getElementById("blockdet_sensor_shortstop_1");

	if (name) res.name = name.value;

    if (flagoff.checked) res.flags |= BLOCK_F_OFF;
    else res.flags &= ~BLOCK_F_OFF;

    if (flagshort.checked) res.flags |= BLOCK_F_SHORT;
    else res.flags &= ~BLOCK_F_SHORT;

    if (flagsplit.checked) res.flags |= BLOCK_F_SPLIT;
    else res.flags &= ~BLOCK_F_SPLIT;

    if (flagsplitpos.checked) res.flags |= BLOCK_F_SPLITPOS;
    else res.flags &= ~BLOCK_F_SPLITPOS;

    if (flagend.checked) res.flags |= BLOCK_F_ENDSTATION;
    else res.flags &= ~BLOCK_F_ENDSTATION;

    if (flagonlycargo.checked) res.flags |= BLOCK_F_ONLYCARGO;
    else res.flags &= ~BLOCK_F_ONLYCARGO;

    if (flagonlypassenger.checked) res.flags |= BLOCK_F_ONLYPASSENGER;
    else res.flags &= ~BLOCK_F_ONLYPASSENGER;

    if (flagstation.checked) res.flags |= BLOCK_F_STATION;
    else res.flags &= ~BLOCK_F_STATION;

    if (flagspeedlimit.checked) res.flags |= BLOCK_F_SPEEDLIMIT;
    else res.flags &= ~BLOCK_F_SPEEDLIMIT;

    if (sensor_enter_0) res.sensor_enter_0 = sensor_enter_0.value;
    if (sensor_slow_0) res.sensor_slow_0 = sensor_slow_0.value;
    if (sensor_stop_0) res.sensor_stop_0 = sensor_stop_0.value;
    if (sensor_shortstop_0) res.sensor_shortstop_0 = sensor_shortstop_0.value;
    if (sensor_enter_1) res.sensor_enter_1 = sensor_enter_1.value;
    if (sensor_slow_1) res.sensor_slow_1 = sensor_slow_1.value;
    if (sensor_stop_1) res.sensor_stop_1 = sensor_stop_1.value;
    if (sensor_shortstop_1) res.sensor_shortstop_1 = sensor_shortstop_1.value;
	
	return res;
};