forked from moke/spaceapi-tuerpie-nix
78 lines
2.1 KiB
Rust
78 lines
2.1 KiB
Rust
use rppal::gpio::{Gpio, InputPin, Level};
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use spaceapi_dezentrale_client::ClientBuilder;
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use std::{env, time::Duration};
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use tokio::time::sleep;
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// Static delays
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static RECHECK_DELAY: Duration = Duration::from_secs(5);
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static ANTI_BOUNCE_DELAY: Duration = Duration::from_secs(1);
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#[derive(Debug)]
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enum DoorStatus {
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Open,
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Closed,
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}
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#[tokio::main]
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async fn main() {
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env_logger::init();
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let door_pin = env::var("DOOR_PIN").unwrap_or("27".to_string());
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let door_pin = door_pin.parse().expect("A number for the DOOR_PIN");
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// setup
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log::debug!("Setup GPIO");
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let gpio = Gpio::new().unwrap();
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let pin = gpio.get(door_pin).unwrap().into_input();
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log::debug!("Build client");
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let spaceapi_client = ClientBuilder::new()
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.api_key(&env::var("API_KEY").expect("Set API_KEY in environment"))
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.base_url(&env::var("SPACEAPI_URL").expect("Set SPACEAPI_URL in environment"))
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.build()
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.unwrap();
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loop {
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log::debug!("Checking door status");
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match check_door(&pin).await {
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DoorStatus::Open => {
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log::debug!("Door is open, sending keep open to server");
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let _ = spaceapi_client
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.keep_open()
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.await
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.map(|_| ())
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.map_err(|err| format!("Problem while pushing door status: {err}"));
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}
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DoorStatus::Closed => {
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log::debug!("Door is closed, doing nothing");
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}
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};
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log::debug!("Waiting {RECHECK_DELAY:?} secs to read the door status");
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sleep(RECHECK_DELAY).await;
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}
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}
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async fn check_door(pin: &InputPin) -> DoorStatus {
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// reading space status from door
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let mut pin_state = pin.read();
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// Anti bounce verification
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loop {
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sleep(ANTI_BOUNCE_DELAY).await;
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let pin_state_check = pin.read();
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if pin_state_check == pin_state {
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break;
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} else {
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pin_state = pin_state_check
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}
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}
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log::debug!("Pin state is {pin_state}");
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if pin_state == Level::Low {
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DoorStatus::Open
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} else {
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DoorStatus::Closed
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}
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}
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