/**
 * Example demonstrating a minimal KNX write.
 *
 * Written in Italy with love, sun and passion, by Massimo Saccani.
 *
 * Released under the MIT License.
 * Use at your own risk; the author assumes no liability for damages.
 */

import { resolve, fromBuffer } from "../src/dptlib";
import { KNXClientOptions } from "../src/KNXClient";
import { KNXClientEvents, KNXClient, dptlib } from "../src";

// Minimal multicast configuration; adjust GA/IP to match your setup
let knxUltimateClientProperties: KNXClientOptions = {
    ipAddr: "224.0.23.12",
    ipPort: "3671",
    physAddr: "1.1.100",
    suppress_ack_ldatareq: false,
    loglevel: "error", // 'disable', 'error', 'warn', 'info', 'debug'
    hostProtocol: "Multicast", // "Multicast" in case you use a KNX/IP Router, "TunnelUDP" in case of KNX/IP Interface, "TunnelTCP" in case of secure KNX/IP Interface (not yet implemented)
    isSecureKNXEnabled: false, // Leave "false" until KNX-Secure has been released
    localIPAddress: "", // Leave blank, will be automatically filled by KNXUltimate
    KNXQueueSendIntervalMilliseconds:25 // Optrional. Queue interval between each KNX telegram. Default is 1 telegram each 25ms
};

// Instantiate the client
const knxUltimateClient = new KNXClient(knxUltimateClientProperties);

// Setting handlers
// Note: datagram.cEMIMessage is ensured to be plain (decrypted)
// if the telegram was Data Secure and keys are available.
knxUltimateClient.on(KNXClientEvents.indication, (datagram, echoed) => {

    // This function is called whenever a KNX telegram arrives from BUS

    // Get the event
    let _evt = "";
    let dpt = "";
    let jsValue;
    if (datagram.cEMIMessage.npdu.isGroupRead) _evt = "GroupValue_Read";
    if (datagram.cEMIMessage.npdu.isGroupResponse) _evt = "GroupValue_Response";
    if (datagram.cEMIMessage.npdu.isGroupWrite) _evt = "GroupValue_Write";
    // Get the source Address
    let _src = datagram.cEMIMessage.srcAddress.toString();
    // Get the destination GA
    let _dst = datagram.cEMIMessage.dstAddress.toString()
    // Get the RAW Value
    let _Rawvalue = datagram.cEMIMessage.npdu.dataValue;

    // Decode the telegram. 
    if (_dst === "0/1/1") {
        // We know, for example, that 0/1/1 is a boolean DPT 1.001
        const config = resolve("1.001");
        jsValue = fromBuffer(_Rawvalue, config)
    } else if (_dst === "0/1/2") {
        // We know , for example, that 0/1/2 is a DPT 232.600 Color RGB
        const config = resolve("232.600");
        jsValue = fromBuffer(_Rawvalue, config)
    } else {
        // All others... assume they are boolean
        const config = resolve("1.001");
        jsValue = fromBuffer(_Rawvalue, config)
        if (jsValue === null) {
            // Opppsss, it's null. It means that the datapoint isn't 1.001
            // Raise whatever error you want.
        }
    }
    console.log("src: " + _src + " dest: " + _dst, " event: " + _evt, " value: " + jsValue);


});
knxUltimateClient.on(KNXClientEvents.connected, info => {
    // The client is connected
    console.log("Connected. On Duty", info);
    // WARNING, THIS WILL WRITE ON YOUR KNX BUS!
    knxUltimateClient.write("0/1/1", false, "1.001");
});


knxUltimateClient.Connect();

// Exit after 20 seconds so the demo does not run indefinitely
setTimeout(() => {
    knxUltimateClient.Disconnect();
    process.exit
}, 20000);