#ifndef SETTINGS_H
#define SETTINGS_H

#include "SettingsHandler.h"

void SetUpSettings(char* filename);
void QuitSettings();

class StringValueSetting : public SettingsArgvDispatcher {
	// simple string setting
public:
	StringValueSetting(const char* name, const char* defaultValue, 
		const char* valueExpectedErrorString,
		const char* wrongValueErrorString);

	virtual ~StringValueSetting();

	void ValueChanged(const char* newValue);
	const char* Value() const;
	virtual const char* Handle(const char *const *argv);	

protected:
	virtual void SaveSettingValue(Settings*);
	virtual bool NeedsSaving() const;

	const char* fDefaultValue;
	const char* fValueExpectedErrorString;
	const char* fWrongValueErrorString;
	char* fValue;
};


class EnumeratedStringValueSetting : public StringValueSetting {
	// string setting, values that do not match string enumeration
	// are rejected
	public:
		EnumeratedStringValueSetting(const char* name, const char* defaultValue, 
			const char *const *values, const char* valueExpectedErrorString,
			const char* wrongValueErrorString);

		void ValueChanged(const char* newValue);
		virtual const char* Handle(const char *const *argv);	

	protected:
		const char *const *fValues;
		char* fValue;
};


class ScalarValueSetting : public SettingsArgvDispatcher {
	// simple int32 setting
public:
	ScalarValueSetting(const char* name, int32 defaultValue,
		const char* valueExpectedErrorString, const char* wrongValueErrorString,
		int32 min = LONG_MIN, int32 max = LONG_MAX);
	virtual ~ScalarValueSetting();

	void ValueChanged(int32 newValue);
	int32 Value() const;
	void GetValueAsString(char*) const;
	virtual const char* Handle(const char *const *argv);	

protected:
	virtual void SaveSettingValue(Settings*);
	virtual bool NeedsSaving() const;

	int32 fDefaultValue;
	int32 fValue;
	int32 fMax;
	int32 fMin;
	const char* fValueExpectedErrorString;
	const char* fWrongValueErrorString;
};

class BooleanValueSetting : public ScalarValueSetting {
	// on-off setting
	public:
		BooleanValueSetting(const char* name, bool defaultValue);
		virtual ~BooleanValueSetting();

		bool Value() const;
		virtual const char* Handle(const char *const *argv);	

	protected:
		virtual void SaveSettingValue(Settings *);
};

#endif	// SETTINGS_H