import { connect } from "mqtt";
import { v4 } from "uuid";

// Is docker?
const isDocker = process.env.AM_I_IN_A_DOCKER_CONTAINER ?? false;
const broker = isDocker ? "mqtt://mqttbroker:1883" : "mqtt://localhost:1883";

const main = () => {
    console.log("Start")

    // Create an mqtt client for broker localhost:1883 with a random client id
    const client = connect(broker, {
        clientId: v4(),
    });

    // Asset stuff
    let testparam1 = 5;
    let testparam2 = true;
    const testoperation1 = () => {
        console.log("This is a result of testoperation 1");
        testparam1++;
        client.publish("testasset/testparam1", testparam1.toString());
    }
    const testoperation2 = (input) => {
        console.log(`This is a result of testoperation 2 with input ${input}`);
        testparam1--;
        client.publish("testasset/testparam1", testparam1.toString());
    }
    const testoperation3 = (input) => {
        client.publish("testasset/testoperation3/result", JSON.stringify({message: "Wuh", input, error: false}));
    }

    // Asset listeners

    client.on("message", (topic, message) => {
        switch (topic) {
            case "testasset/testparam2/write":
                testparam2 = /(true|1)/i.test(message.toString());
                client.publish("testasset/testparam2", testparam2.toString());
                break;
            case "testasset/testoperation1":
                testoperation1();
                break;
            case "testasset/testoperation2":
                testoperation2(JSON.parse(message.toString()).TestInput);
                break;
            case "testasset/testoperation3":
                testoperation3(message.toString());
                break;
        }
    });
    client.on("connect", () => {
        console.log("Connected to broker");
    });
    client.on("error", (error) => {
        console.error(error);
    });
    client.on("close", () => {
        console.log("Connection to broker closed");
    });

    client.subscribe("testasset/#");

    setInterval(() => { 
        client.publish("testasset/testparam1", testparam1.toString());
        client.publish("testasset/testparam2", testparam2.toString());
    }, 1000);
    setInterval(() => { client.publish("testasset/testevent", "Timer ran down") }, 10000);
    client.publish("testasset/hello", "Hello World");
}
if (isDocker) setTimeout(main.bind(this), 3000);
else main();