weather-portal/src/weather_portal.gleam
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create an mqtt_dummy that sends string every second
2026-03-24 11:26:36 +01:00

55 lines
1.4 KiB
Gleam

import config
import gleam/erlang/process
import gleam/io
import mqtt_dummy
pub fn main() -> Nil {
case config.load_config() {
Ok(cfg) -> {
io.println("Config loaded successfully!")
io.println("MQTT Host: " <> cfg.mqtt_host)
io.println("MQTT User: " <> cfg.mqtt_user)
io.println("MQTT PW: " <> cfg.mqtt_pw)
io.println("JWT Key: " <> cfg.jwt_key)
}
Error(err) -> {
io.println("Failed to load config: " <> err)
}
}
let assert Ok(subject) = mqtt_dummy.start()
let mailbox = mqtt_dummy.subscribe(subject)
// Kick off the first message
process.send_after(subject, 1000, mqtt_dummy.Proc)
receive_and_reschedule(mailbox, subject)
// case process.receive(mailbox, 5000) {
// Ok(msg) -> {
// io.println("Got message:" <> msg)
// // process_messages(mailbox, n - 1)
// }
// Error(Nil) -> {
// io.println("Timeout waiting for message")
// }
// }
Nil
}
fn receive_and_reschedule(
mailbox: process.Subject(String),
subject: process.Subject(mqtt_dummy.Message),
) -> Nil {
case process.receive(mailbox, 2000) {
Ok(msg) -> {
io.println("Got message: " <> msg)
// Reschedule the next Proc message
process.send_after(subject, 1000, mqtt_dummy.Proc)
receive_and_reschedule(mailbox, subject)
}
Error(Nil) -> {
io.println("Timeout - waiting again...")
receive_and_reschedule(mailbox, subject)
}
}
}