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webthingsio-inject.js
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webthingsio-inject.js
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module.exports = function(RED) {
function WebthingsioInjectNode(config) {
RED.nodes.createNode(this, config);
if (!config.gateway) {
this.error(RED._('webthingsio-inject.gatewayMissing'));
return;
}
this.gateway = RED.nodes.getNode(config.gateway);
if (!this.gateway) {
this.error(RED._('webthingsio-inject.gatewayNotFound'));
return;
}
if (!this.gateway.webthingsEmitter) {
this.error(RED._('webthingsio-inject.webthingsClientNotFound'));
return;
}
this.gateway.webthingsEmitter.on('connected', () => {
this.status({
fill: 'green',
shape: 'dot',
text: 'node-red:common.status.connected',
});
});
this.gateway.webthingsEmitter.on('disconnected', () => {
this.status({
fill: 'red',
shape: 'ring',
text: 'node-red:common.status.disconnected',
});
});
const decodedThingId = decodeURIComponent(config.thing);
switch (config.injectOn) {
case 'property changed':
this.gateway.webthingsEmitter.on(
'propertyChanged',
(thing, property, value) => {
let msg;
if (decodedThingId === '*') {
msg = {
thing: thing,
property: property,
value: value,
};
} else if (
decodedThingId === thing &&
config.property === '*'
) {
msg = {
property: property,
value: value,
};
} else if (
decodedThingId === thing &&
config.property === property
) {
msg = value;
} else {
return;
}
this.send({
payload: msg,
});
},
);
break;
case 'event raised':
this.gateway.webthingsEmitter.on(
'eventRaised',
(thing, event, data) => {
let msg;
if (config.thing === '*') {
msg = {
thing: thing,
event: event,
data: data,
};
} else if (
decodedThingId === thing &&
config.event === '*'
) {
msg = {
event: event,
data: data,
};
} else if (
decodedThingId === thing &&
config.event === event
) {
msg = data;
} else {
return;
}
this.send({
payload: msg,
});
},
);
break;
case 'action executed':
this.gateway.webthingsEmitter.on(
'actionTriggered',
(thing, action, input) => {
let msg;
if (config.thing === '*') {
msg = {
thing: thing,
action: action,
input: input,
};
} else if (
decodedThingId === thing &&
config.action === '*'
) {
msg = {
action: action,
input: input,
};
} else if (
decodedThingId === thing &&
config.action === action
) {
msg = input;
} else {
return;
}
this.send({
payload: msg,
});
},
);
break;
case 'connect state changed':
this.gateway.webthingsEmitter.on(
'connectStateChanged',
(thing, state) => {
let msg;
if (config.thing === '*') {
msg = {
thing: thing,
state: state,
};
} else if (decodedThingId === thing) {
msg = state;
} else {
return;
}
this.send({
payload: msg,
});
},
);
break;
case 'thing added':
this.gateway.webthingsEmitter.on('deviceAdded', (thing) => {
this.send({
payload: thing,
});
});
break;
case 'thing modified':
this.gateway.webthingsEmitter.on('deviceModified', (thing) => {
this.send({
payload: thing,
});
});
break;
case 'thing removed':
this.gateway.webthingsEmitter.on('deviceRemoved', (thing) => {
this.send({
payload: thing,
});
});
break;
default:
this.error(RED._('webthingsio-inject.unknownInjectOn'));
break;
}
}
RED.nodes.registerType('webthingsio-inject', WebthingsioInjectNode);
};