use stm32f1xx_hal::gpio::{gpiob::PB2, Cr, Floating, Input, Output, PushPull, CRL};

enum State {
    Low,
    High,
}

type LEDPin<MODE> = PB2<MODE>;

pub struct LED {
    pin: LEDPin<Output<PushPull>>,
    state: State,
}

#[allow(unused)]
impl LED {
    pub fn new(pin: LEDPin<Input<Floating>>, cr: &mut Cr<CRL, 'B'>) -> Self {
        let mut p = pin.into_push_pull_output(cr);
        p.set_low();
        Self {
            pin: p,
            state: State::Low,
        }
    }

    pub fn is_on(&self) -> bool {
        match self.state {
            State::High => true,
            State::Low => false,
        }
    }

    pub fn on(&mut self) {
        self.state = State::High;
        self.pin.set_high();
    }

    pub fn off(&mut self) {
        self.state = State::Low;
        self.pin.set_low();
    }

    pub fn toggle(&mut self) {
        if self.is_on() {
            self.off();
        } else {
            self.on();
        }
    }
}