/// An enum of all commands passed into and out of the microcontroller

use strum_macros::EnumCount as EnumCountMacro;
use std::mem::discriminant;
use std::sync::Arc;

#[derive(Clone, EnumCountMacro, Debug)]
pub enum Commands {

    // Inputs sent from the PIC microcontroller
    PicRecvUp,
    PicRecvDown,
    PicRecvStop,

    // Inputs from bluetooth
    BluetoothUp {data: u8},
    BluetoothDown {data: u8},
    BluetoothStop {_data: u8}, // There is no state where releasing the stop button induces a change.
    BluetoothName { data: Arc<String>},

    // Internal messages
    StopTimerExpired, // Sent when the 2 second stop sequence is complete
    StopTimerRestart,
    StopTimerClear,
    ButtonTimerExpired,
    ButtonTimerRestart,
    ButtonTimerClear,
    PairTimerExpired,
    AllowPairing, // Also serves as the timer restart command
    PairTimerClear,

    NotifyMotorUp {data: u8},
    NotifyMotorDown {data: u8},
    NotifyMotorStop {data: u8},

    EraseBleBonds,
}

#[non_exhaustive]
pub struct Button;

impl Button {
    pub const PRESSED: u8 = 0x1;
    pub const RELEASED: u8 = 0x0;
}

pub type CmdType = std::mem::Discriminant<Commands>;

/// Consider commands equal if they have the same command type, but different values
impl PartialEq for Commands {
    fn eq(&self, other: &Self) -> bool {
        discriminant(self) == discriminant(other)
    }
}