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Pause #14

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Pause #14

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b4d4c5b
Adding a pause feature
readeral Sep 2, 2018
48dc79b
sending message on function start, not waiting 1 second before decrem…
readeral Sep 2, 2018
4fd1488
adding suspend, restoring original 'on' functionality
readeral Sep 3, 2018
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86 changes: 68 additions & 18 deletions mytimeout.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
// }
//
// {
// "payload": <Don't care>
// "payload": <Don't care>
// }
//
// The above gets treated as an on condition
Expand Down Expand Up @@ -67,14 +67,16 @@ module.exports = function(RED) {
var countdownNode = function(n) {
// Local variables
var node = this;

var state = 'stop';
var wflag = false;
var ticks = -1; //
var lastPayload = Date.now();; //
var lastPayload = Date.now();; //
var pauseValue = null;
var tick = null;

var timeout = parseInt(n.timer||30); //
var warn = parseInt(n.warning||10); //
var timeout = parseInt(n.timer||30); //
var warn = parseInt(n.warning||10); //

var ignoreCase = '';

Expand Down Expand Up @@ -194,7 +196,11 @@ module.exports = function(RED) {
node.send([msg, null]);

state = 'run';

if (tick !== null) {
clearInterval(tick);
tick = null;
}
startInterval();
wflag = false; // rest the warning flag
} // on(msg)

Expand Down Expand Up @@ -263,7 +269,10 @@ module.exports = function(RED) {
node.send([null, tremain]);
break;
}

if (tick !== null) {
clearInterval(tick);
tick = null;
}
state = 'stop';
ticks = -1;
timeout = parseInt(node.timer);
Expand All @@ -276,6 +285,42 @@ module.exports = function(RED) {
ndebug("cancel!");
stop('cancel');
ticks = -1;
pauseValue = null;
}

function pause(susp) {
var suspend = susp.payload == "suspend" ? true : false;
ndebug("pause function!");
pauseValue = [ticks, node.warnT];

timeout = ticks;
var msg = line;
node.status({
fill : "grey",
shape : "dot",
text : `Paused: ${ticks}` // provide a visual countdown
});

msg.payload = "pause";
lastPayload = msg.payload;

state = 'pause';
if (tick !== null && !suspend) {
var tremain = { "payload": ticks, "state": 0, "flag": "pause"};
clearInterval(tick);
tick = null;
}
node.send([msg, tremain]);
}

function unpause(msg) {
ndebug("unpause!");

var pausemsg = {
timeout: pauseValue[0],
warning: pauseValue[1]
}
on(pausemsg);
}

function doNothing() {
Expand Down Expand Up @@ -381,14 +426,15 @@ module.exports = function(RED) {
// Leave this here, need the functions ref from above
var states = {
// Not sure if this is what I want in the long run but this is good for now
stop: { 0: off, on: on, off: off, stop: doNothing, cancel: doNothing },
run: { 0: off, on: on, off: off, stop: stop, cancel: cancel }
stop: { 0: off, on: on, pause: on, suspend: off, off: off, stop: doNothing, cancel: doNothing },
pause: { 0: off, on: on, pause: unpause, suspend: unpause, off: off, stop: stop, cancel: cancel },
run: { 0: off, on: on, pause: pause, suspend: pause, off: off, stop: stop, cancel: cancel }
};

// -------------------------------------------------------------------------------
// Commands
// TIX
node.on("TIX", function(inMsg) {
node.on("TIX", function(inMsg, state) {
lastPayload = Date.now();
var msg = {};

Expand Down Expand Up @@ -427,7 +473,8 @@ module.exports = function(RED) {
var tremain = { "payload": ticks, "state": 1, "flag": "ticks > 0"};
node.send([null, tremain]);
}
ticks--;
//decrement ticks, but if paused, stop decrementing
state !== "pause" ? ticks-- : '';
} else if(ticks == 0){
ndebug("ticks == 0");
stop("off");
Expand All @@ -443,6 +490,7 @@ module.exports = function(RED) {

// Stop (initial state at start up and when not running)
// On (timer reset to default value and running, on sent)
// Pause (timer retains value, return to Stop)
// Off (timer off, off sent, return to Stop)
// CANCEL (timer off, nothing sent, return to Stop)
// Warning (timer still on, warning sent)
Expand Down Expand Up @@ -481,7 +529,7 @@ module.exports = function(RED) {
// then drop it
// If the timer goes off then the lastPayload should be cleared

// We only send a simple message ('on', 'off', 'stop' or 'cancel')
// We only send a simple message ('on', 'pause', 'off', 'stop' or 'cancel')
var regex = new RegExp('^' + lastPayload + '$', ignoreCase);
//if(lastPayload === inMsg.payload) {
if(regex.test(inMsg.payload)) {
Expand Down Expand Up @@ -530,13 +578,15 @@ module.exports = function(RED) {

// Once the node is instantiated this keeps running
// I'd like to change this to run when only needed
var tick = setInterval(function() {
var msg = { payload:'TIX', topic:""};
node.emit("TIX", msg);
}, 1000); // trigger every 1 sec

function startInterval() {
var msg = { payload:'TIX', topic:""};
node.emit("TIX", msg, state);
tick = setInterval(function() {
node.emit("TIX", msg, state);
}, 1000); // trigger every 1 sec
}
node.on("close", function() {
if (tick) {
if (tick !== null) {
clearInterval(tick);
}
});
Expand Down