/*
 * Copyright 2010-2014, Haiku, Inc.
 * Distributed under the terms of the MIT Licence.
 */
#ifndef _B_DATE_FORMAT_H_
#define _B_DATE_FORMAT_H_


#include <DateTime.h>
#include <DateTimeFormat.h>
#include <Format.h>
#include <FormattingConventions.h>
#include <Language.h>
#include <Locker.h>


#ifndef U_ICU_NAMESPACE
  #define U_ICU_NAMESPACE icu
#endif
namespace U_ICU_NAMESPACE {
        class DateFormat;
}


class BString;
class BTimeZone;


enum BWeekday {
        B_WEEKDAY_MONDAY = 1,
        B_WEEKDAY_TUESDAY,
        B_WEEKDAY_WEDNESDAY,
        B_WEEKDAY_THURSDAY,
        B_WEEKDAY_FRIDAY,
        B_WEEKDAY_SATURDAY,
        B_WEEKDAY_SUNDAY,
};


class BDateFormat: public BFormat {
public:
                                                                BDateFormat(const BLocale* locale = NULL);
                                                                BDateFormat(const BLanguage& language,
                                                                        const BFormattingConventions& format);
                                                                BDateFormat(const BDateFormat &other);
        virtual                                         ~BDateFormat();

                        status_t                        GetDateFormat(BDateFormatStyle style,
                                                                        BString& outFormat) const;
                        void                            SetDateFormat(BDateFormatStyle style,
                                                                        const BString& format);

                                                                // formatting

                        ssize_t                         Format(char* string, const size_t maxSize,
                                                                        const time_t time,
                                                                        const BDateFormatStyle style) const;
                        status_t                        Format(BString& string, const time_t time,
                                                                        const BDateFormatStyle style,
                                                                        const BTimeZone* timeZone = NULL) const;
                        status_t                        Format(BString& string, const BDate& time,
                                                                        const BDateFormatStyle style,
                                                                        const BTimeZone* timeZone = NULL) const;
                        status_t                        Format(BString& string,
                                                                        int*& fieldPositions, int& fieldCount,
                                                                        const time_t time,
                                                                        const BDateFormatStyle style) const;

                        status_t                        GetFields(BDateElement*& fields,
                                                                        int& fieldCount, BDateFormatStyle style
                                                                        ) const;

                        status_t                        GetStartOfWeek(BWeekday* weekday) const;
                        status_t                        GetMonthName(int month, BString& outName,
                                                                        const BDateFormatStyle style
                                                                        = B_FULL_DATE_FORMAT) const;
                        status_t                        GetDayName(int day, BString& outName,
                                                                        const BDateFormatStyle style
                                                                        = B_FULL_DATE_FORMAT) const;

                                                                // parsing

                        status_t                        Parse(BString source, BDateFormatStyle style,
                                                                        BDate& output);

private:
                        int                                     _ConvertDayNumberToICU(int day) const;

                        U_ICU_NAMESPACE::DateFormat*    _CreateDateFormatter(
                                                                        const BDateFormatStyle style) const;

};


inline int
BDateFormat::_ConvertDayNumberToICU(int day) const
{
        return day == 7 ? 1 : day + 1;
}


#endif  // _B_DATE_FORMAT_H_