@thingweb/node-red-node-wot/dist/wot-server-event.ts

Web of Things nodes for Node-RED using node-wot

import ServientManager from "./servients/servient-manager"

module.exports = function (RED) {
    function WoTServerEvent(config) {
        RED.nodes.createNode(this, config)
        const node = this
        this.status({ fill: "red", shape: "dot", text: "not prepared" })

        // for wot-server-config
        node.getProps = () => {
            return {
                attrType: "events",
                name: config.eventName,
                outputAttr: config.inParams_eventValueConstValue,
                content: {
                    description: config.eventDescription,
                    data: { type: config.eventDataType },
                },
            }
        }

        node.setServientStatus = (running: boolean) => {
            if (running) {
                node.status({ fill: "green", shape: "dot", text: "running" })
            } else {
                node.status({ fill: "red", shape: "dot", text: "not prepared" })
            }
        }

        // for wot-server-config
        node.getThingNode = () => {
            return RED.nodes.getNode(config.woTThingConfig)
        }

        node.on("input", async (msg, send, done) => {
            try {
                const woTServerConfig = RED.nodes.getNode(config.woTServerConfig)

                if (config.inParams_eventValueConstValue && config.inParams_eventValueType) {
                    node.inParams_eventValue = RED.util.evaluateNodeProperty(
                        config.inParams_eventValueConstValue,
                        config.inParams_eventValueType,
                        node,
                        msg
                    )
                }
                await ServientManager.getInstance()
                    .getThing(woTServerConfig.id, node.getThingNode().getProps().title)
                    .emitEvent(config.eventName, node.inParams_eventValue)
                console.debug("[debug] emitEvent finished. eventName: ", config.eventName)

                // no output
                done()
            } catch (err) {
                done(err)
            }
        })

        node.on("close", function (removed, done) {
            if (removed) {
                // This node has been disabled/deleted
            } else {
                // This node is being restarted
            }
            done()
        })

        const woTServerConfig = RED.nodes.getNode(config.woTServerConfig)
        woTServerConfig?.addUserNode(node)
    }
    RED.nodes.registerType("wot-server-event", WoTServerEvent)
}