#![no_std]
#![no_main]

use arduino_uno::{Delay, delay_ms, prelude::*};
use dht11::Dht11;
use panic_halt as _;

#[arduino_uno::entry]
fn main() -> ! {
    let dp = arduino_uno::Peripherals::take().unwrap();

    let mut pins = arduino_uno::Pins::new(dp.PORTB, dp.PORTC, dp.PORTD);

    let mut led = pins.d13.into_output(&mut pins.ddr);
    led.set_low().void_unwrap();

    let mut serial = arduino_uno::Serial::new(
        dp.USART0,
        pins.d0,
        pins.d1.into_output(&mut pins.ddr),
        57600.into_baudrate(),
    );

    let mut delay = Delay::new();
    let mut dht11 = Dht11::new(pins.d2.into_tri_state(&mut pins.ddr));

    delay_ms(2000);

    loop {
        led.set_high().void_unwrap();
        arduino_uno::delay_ms(50);
        led.set_low().void_unwrap();
        match dht11.perform_measurement(&mut delay) {
            Ok(meas) => ufmt::uwriteln!(&mut serial, "temp: {} hum: {}\r", meas.temperature, meas.humidity).void_unwrap(),
            Err(e) => match e {
                dht11::Error::Timeout => ufmt::uwriteln!(&mut serial, "error: timeout\r").void_unwrap(),
                dht11::Error::CrcMismatch => ufmt::uwriteln!(&mut serial, "error: crc mismatch\r").void_unwrap(),
                dht11::Error::Gpio(_) => ufmt::uwriteln!(&mut serial, "error: gpio\r").void_unwrap(),
            }
        }

        arduino_uno::delay_ms(2000);
    }
}