feat(gateway): move to lumi-aqara

Also add gateway search and subdevices discovery.
Closes #28, closes #27, closes #26, closes #17 and fixes #12

src/nodes/gateway/GatewayOut.ts

@@ -0,0 +1,49 @@
+import { Red, NodeProperties } from "node-red";
+import { LumiAqara } from "../../../typings/index";
+import { Constants } from "../constants";
+
+export interface IGatewayOutNode extends Node {
+    gatewayConf:any;
+    gateway: LumiAqara.Gateway;
+
+    setGateway(gateway:LumiAqara.Gateway);
+}
+
+export default (RED:Red) => {
+    class GatewayOut {
+        protected gatewayConf: any;
+        protected gateway: LumiAqara.Gateway;
+
+        constructor(props:NodeProperties) {
+            RED.nodes.createNode(<any> this, props);
+            this.gatewayConf= RED.nodes.getNode((<any> props).gateway);
+            (<any> this).status({fill:"red", shape:"ring", text: "offline"});
+
+            this.setMessageListener();
+        }
+
+        protected setMessageListener() {
+            (<any> this).on("input", (msg) => {
+                if (msg.hasOwnProperty("payload") && this.gateway) {
+                    if(msg.payload.cmd === "write" && !msg.payload.data.key && this.gateway && this.gateway.sid && this.gateway._key) {
+                        msg.payload.data.key = this.gateway._key;
+                    }
+                    this.gateway._sendUnicast(JSON.stringify(msg.payload));
+                }
+            });
+        }
+
+        setGateway(gateway) {
+            this.gateway = gateway;
+            this.gateway.setPassword(this.gatewayConf.password);
+            (<any> this).status({fill:"blue", shape:"dot", text: "online"});
+
+            this.gateway.on('offline', () => {
+                this.gateway = null;
+                (<any> this).status({fill:"red", shape:"ring", text: "offline"});
+            });
+        }
+    }
+
+    RED.nodes.registerType(`${Constants.NODES_PREFIX}-gateway out`, <any> GatewayOut);
+};