node-red-contrib-mi-sensors/node-red-contrib-xiaomi-magnet/xiaomi-magnet.js

A set of nodes to control some of the popular Xiaomi sensors which are connected to the Xiaomi Gateway, and the Gateway itself.

const miDevicesUtils = require('../src/utils');

module.exports = (RED) => {
    // magnet, sensor_magnet.aq2
    function XiaomiMagnetNode(config) {
        RED.nodes.createNode(this, config);

        this.gateway = RED.nodes.getNode(config.gateway);
        this.sid = config.sid;

        this.status({fill:"grey", shape:"ring", text:"battery - na"});
        var node = this

        if (this.gateway) {
            this.on('input', (msg) => {
                let payload = msg.payload;
                //过滤掉心跳
                if (payload.cmd == 'heartbeat') {
                    return null;
                }
                // Input from gateway
                if (payload.sid) {
                    if (payload.sid == this.sid) {
                        miDevicesUtils.setStatus(this, payload.data);
                        
                        let data = miDevicesUtils.get(node)

                        if (payload.data.no_close) {
                            data['open_since'] = payload.data.no_close
                        }

                        if (payload.data.status && payload.data.status == 'close') {
                            data['state'] = 'off'
                            data['open_since'] = 0
                        }

                        if (payload.data.status && payload.data.status == 'open') {
                            data['state'] = 'on'
                            data['open_since'] = 0
                        }
                        
                        if (payload.data.batteryLevel) {
                            data['batteryLevel'] = payload.data.batteryLevel
                        }

                        miDevicesUtils.set(node, data)
                        payload.data = data
                    }
                    else {
                        msg = null;
                    }
                }
                // Prepare for request
                else {
                    miDevicesUtils.prepareForGatewayRequest(this, msg);
                    let data = miDevicesUtils.get(node)
                    msg.payload.data = data
                }
                this.send(msg);
            });
        }
    }
    RED.nodes.registerType("xiaomi-magnet", XiaomiMagnetNode);
};