node-red-contrib-boolean-logic-ultimate/boolean-logic-ultimate/SumUltimate.html

A set of Node-RED enhanced boolean logic and utility nodes, flow interruption, blinker, invert, filter, toggle etc.., with persistent values after reboot. Compatible also with Homeassistant values.

<script type="text/javascript">
    RED.nodes.registerType('SumUltimate', {
        category: 'Boolean Logic Ultimate',
        color: '#ff8080',
        defaults: {
            name: {
                value: "Math"
            },
            property: {
                value: "payload"
            },
            math: {
                value: "sum"
            },
            subtractstartfrom: { value: "" }
        },
        inputs: 1,
        outputs: 1,
        icon: "font-awesome/fa-plus",
        label:
            function () {
                return this.name || "Math";
            },
        paletteLabel: function () {
            return "Math";
        },
        oneditprepare: function () {
            if ($("#node-input-property").val() === "") $("#node-input-property").val("payload");
            $("#node-input-property").typedInput({ default: 'msg', types: ['msg'] });
            $("#node-input-math").on('change', function () {
                if ($("#node-input-math").val() === "subtract") {
                    $("#divSubtractFirst").show()
                } else {
                    $("#divSubtractFirst").hide()
                }
            })
        }
    });
</script>

<script type="text/html" data-template-name="SumUltimate">
	<div class="form-row">
		<b>Math Ultimate</b>&nbsp&nbsp&nbsp&nbsp<span style="color:red"><i class="fa fa-question-circle"></i>&nbsp<a target="_blank" href="https://github.com/Supergiovane/node-red-contrib-boolean-logic-ultimate"><u>Help online</u></a></span>
		&nbsp&nbsp&nbsp<span style="color:red"><i class="fa fa-youtube-play"></i>&nbsp<a target="_blank" href="https://youtu.be/jLIbQgmRzuc"><u>Youtube Sample</u></a></span>
        <br/>
		<br/>        
	</div>
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Topic</label>
        <input type="text" id="node-input-name" placeholder="Topic">
    </div>
    <div class="form-row">
        <label for="node-input-property"><i class="icon-tag"></i> Input</label>
        <input type="text" id="node-input-property" placeholder="payload">
    </div>
    <div class="form-row">
		<label for="node-input-math"><i class="icon-tag"></i> Operation</label>
		<select type="text" id="node-input-math" placeholder="">
			<option value="sum">Sum</option>
			<option value="multiply">Multiply</option>
            <option value="subtract">Subtract</option>
		</select>
	</div>
    <div class="form-row" id="divSubtractFirst" hidden>
        <label for="node-input-subtractstartfrom"><i class="icon-tag"></i> Subtract from</label>
        <input type="text" id="node-input-subtractstartfrom" placeholder="See the help.">
    </div>
</script>

<script type="text/markdown" data-help-name="SumUltimate">
<p>The pourpose of this node is to do maths on the incoming values. Each incoming message MUST HAVE OWN TOPIC, that means, each inbound **msg.topic** must be **different**.</p>

|Property|Description|
|--|--|
| Input | It's the msg property to be evaluated. *By default, it is *payload*, but you can also specify other properties, for example "payload.value"* |
| Operation | Operation to be performed. |
| Subtract from | Only visible when the *operation* is **subtract**. It's the *msg.topic value* of the message containing the payload from wich the node starts subtracting. For example, if the incoming msg has ***msg.topic = 'startNumber'***, you must write only **startNumber** in the *Subtract from* field. |

<br/>

### Inputs

: reset (any) : by passing msg.reset, the node will reset all values and sarts from scratch.
: topic (string) : the topic identifying the incoming message. Each incoming msg, must have a different topic.
: payload (number) : the payload containing the number. If you've changed the incoming evaluation property in the ***Input*** field, the number to be evaluated must be put in such message's property, instead of the *payload* property. 

### Example of "subtract"

Copy this code and paste it in to your flow.

```json
[{"id":"430cc033ed140940","type":"inject","z":"1050ddfb1ce105e8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"a","payload":"20","payloadType":"num","x":110,"y":140,"wires":[["97d95d92ddf4bf08"]]},{"id":"514067713f250a42","type":"inject","z":"1050ddfb1ce105e8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"startNumber","payload":"100","payloadType":"num","x":140,"y":100,"wires":[["97d95d92ddf4bf08"]]},{"id":"97d95d92ddf4bf08","type":"SumUltimate","z":"1050ddfb1ce105e8","name":"Subtract","property":"payload","math":"subtract","subtractstartfrom":"startNumber","x":320,"y":140,"wires":[["c55f332fe2dadc53"]]},{"id":"c55f332fe2dadc53","type":"debug","z":"1050ddfb1ce105e8","name":"Debug","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":470,"y":140,"wires":[]},{"id":"fe0ac0d4cd660a65","type":"inject","z":"1050ddfb1ce105e8","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"b","payload":"10","payloadType":"num","x":110,"y":180,"wires":[["97d95d92ddf4bf08"]]},{"id":"3de15e77a932a0eb","type":"inject","z":"1050ddfb1ce105e8","name":"Reset","props":[{"p":"reset","v":"true","vt":"bool"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","x":110,"y":220,"wires":[["97d95d92ddf4bf08"]]}]
```

<br/>

[SEE THE README FOR FULL HELP AND SAMPLES](https://github.com/Supergiovane/node-red-contrib-boolean-logic-ultimate)

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</script>