/*
 * Copyright 2010-2022 Haiku Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef _B_HTTP_TIME_H_
#define _B_HTTP_TIME_H_

#include <ctime>

#include <DateTime.h>
#include <ErrorsExt.h>
#include <String.h>

namespace BPrivate {

namespace Network {

enum class BHttpTimeFormat : int8 {
	RFC1123 = 0,
	RFC850,
	AscTime
};


class BHttpTime {
public:
	// Error type
	class InvalidInput : public BError {
	public:
								InvalidInput(const char* origin, BString input);

		virtual	const char*		Message() const noexcept override;
		virtual	BString			DebugMessage() const override;

		BString					input;
	};

	// Constructors
							BHttpTime() noexcept;
							BHttpTime(BDateTime date);
							BHttpTime(const BString& dateString);

	// Date modification
			void			SetTo(const BString& string);
			void			SetTo(BDateTime date);


	// Date Access
			BDateTime		DateTime() const noexcept;
			BHttpTimeFormat	DateTimeFormat() const noexcept;
			BString			ToString(BHttpTimeFormat outputFormat = BHttpTimeFormat::RFC1123) const;

private:
			void			_Parse(const BString& dateString);

			BDateTime		fDate;
			BHttpTimeFormat	fDateFormat;
};


// Convenience functions
BDateTime	parse_http_time(const BString& string);
BString		format_http_time(BDateTime timestamp,
	BHttpTimeFormat outputFormat = BHttpTimeFormat::RFC1123);


} // namespace Network

} // namespace BPrivate

#endif // _B_HTTP_TIME_H_