//---
// fxos-shell.errors: Exceptions with particular handling
//---

#ifndef FXOS_ERRORS_H
#define FXOS_ERRORS_H

#include <fxos/errors.h>
#include <fmt/core.h>
#include <string>

/* Generic command error, either parsing or execution, which prevents a command
   from accomplishing its intended task. */
class CommandError: public std::exception
{
public:
	CommandError(std::string what): m_what(what) {}

	/* Build directly from format arguments */
	template <typename... Args>
	CommandError(std::string const &format_str, Args&&... args):
		m_what(fmt::format(format_str, args...)) {}

	char const *what() const noexcept override {
		return m_what.c_str();
	}

private:
	std::string m_what;
};

/* Command error when no virtual space is selected */
class NoVirtualSpaceError: public CommandError
{
public:
	NoVirtualSpaceError():
		CommandError("no virtual space") {}
	NoVirtualSpaceError(std::string name):
		CommandError("no virtual space '{}'", name) {}
};

#endif /* FXOS_ERRORS_H */