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use std::{error, fmt};
/// ViGEm client errors.
#[derive(Copy, Clone, Debug, Eq, PartialEq)]
#[non_exhaustive]
pub enum Error {
/// There was an unexpected windows error.
///
/// See [System Error Codes](https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes) for more information.
WinError(u32),
/// The ViGEmBus Driver is not installed.
///
/// It can be installed from the [ViGEmBus](https://github.com/ViGEm/ViGEmBus) repository.
BusNotFound,
/// ViGEmBus was found, but accessing it returned an error.
BusAccessFailed(u32),
/// ViGEmBus was found, but it did not accept this client's version.
BusVersionMismatch,
/// There was no more room to allocate new targets.
NoFreeSlot,
// InvalidClient,
// InvalidTarget,
/// The target is already connected.
///
/// It is an error to try to plugin an already connected target.
AlreadyConnected,
/// The target is not plugged in.
NotPluggedIn,
/// The target is not ready.
///
/// After creating the desired controller, wait some time before the target is ready to accept updates.
/// This error is returned if a target is updated before it is ready.
TargetNotReady,
/// The user index is out of range.
///
/// In XInput the user index should be between 0 and 4 exclusive.
UserIndexOutOfRange,
/// The operation was aborted.
OperationAborted,
}
impl From<u32> for Error {
#[inline]
fn from(error: u32) -> Error {
Error::WinError(error)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::WinError(err) => write!(f, "win error: {}", err),
Error::BusNotFound => f.write_str("bus not found"),
Error::BusAccessFailed(err) => write!(f, "bus access failed: {}", err),
Error::BusVersionMismatch => f.write_str("bus version mismatch"),
Error::NoFreeSlot => f.write_str("no free slot"),
Error::AlreadyConnected => f.write_str("already connected"),
Error::NotPluggedIn => f.write_str("not plugged in"),
Error::TargetNotReady => f.write_str("target not ready"),
Error::UserIndexOutOfRange => f.write_str("user index out of range"),
Error::OperationAborted => f.write_str("operation aborted"),
}
}
}
impl error::Error for Error {}