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#pragma once
#include "encoder_state_enum.h"
#include <util/generic/serialized_enum.h>
#include <util/generic/yexception.h>
namespace NMonitoring {
template <typename EEncoderState>
class TEncoderStateImpl {
public:
using EState = EEncoderState;
explicit TEncoderStateImpl(EEncoderState state = EEncoderState::ROOT)
: State_(state)
{
}
TEncoderStateImpl& operator=(EEncoderState rhs) noexcept {
State_ = rhs;
return *this;
}
inline bool operator==(EEncoderState rhs) const noexcept {
return State_ == rhs;
}
inline bool operator!=(EEncoderState rhs) const noexcept {
return !operator==(rhs);
}
[[noreturn]] inline void ThrowInvalid(TStringBuf message) const {
ythrow yexception() << "invalid encoder state: "
<< ToStr() << ", " << message;
}
inline void Expect(EEncoderState expected) const {
if (Y_UNLIKELY(State_ != expected)) {
ythrow yexception()
<< "invalid encoder state: " << ToStr()
<< ", expected: " << TEncoderStateImpl(expected).ToStr();
}
}
inline void Switch(EEncoderState from, EEncoderState to) {
Expect(from);
State_ = to;
}
TStringBuf ToStr() const noexcept {
return NEnumSerializationRuntime::GetEnumNamesImpl<EEncoderState>().at(State_);
}
private:
EEncoderState State_;
};
using TEncoderState = TEncoderStateImpl<EEncoderState>;
} // namespace NMonitoring
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