/*
 * Copyright 2014-2015 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Adrien Destugues, pulkomandy@pulkomandy.tk
 *              John Scipione, jscipione@gmail.com
 */

#include <unicode/uversion.h>
#include <StringFormat.h>

#include <Autolock.h>
#include <FormattingConventionsPrivate.h>
#include <LanguagePrivate.h>

#include <ICUWrapper.h>

#include <unicode/msgfmt.h>


U_NAMESPACE_USE


BStringFormat::BStringFormat(const BLanguage& language, const BString pattern)
        : BFormat(language, BFormattingConventions())
{
        _Initialize(UnicodeString::fromUTF8(pattern.String()));
}


BStringFormat::BStringFormat(const BString pattern)
        : BFormat()
{
        _Initialize(UnicodeString::fromUTF8(pattern.String()));
}


BStringFormat::~BStringFormat()
{
        delete fFormatter;
}


status_t
BStringFormat::InitCheck()
{
        return fInitStatus;
}


status_t
BStringFormat::Format(BString& output, const int64 arg) const
{
        if (fInitStatus != B_OK)
                return fInitStatus;

        UnicodeString buffer;
        UErrorCode error = U_ZERO_ERROR;

        Formattable arguments[] = {
                (int64)arg
        };

        FieldPosition pos;
        buffer = fFormatter->format(arguments, 1, buffer, pos, error);
        if (!U_SUCCESS(error))
                return B_ERROR;

        BStringByteSink byteSink(&output);
        buffer.toUTF8(byteSink);

        return B_OK;
}


status_t
BStringFormat::_Initialize(const UnicodeString& pattern)
{
        fInitStatus = B_OK;
        UErrorCode error = U_ZERO_ERROR;
        Locale* icuLocale
                = BLanguage::Private(&fLanguage).ICULocale();

        fFormatter = new MessageFormat(pattern, *icuLocale, error);

        if (fFormatter == NULL)
                fInitStatus = B_NO_MEMORY;

        if (!U_SUCCESS(error)) {
                delete fFormatter;
                fInitStatus = B_ERROR;
                fFormatter = NULL;
        }

        return fInitStatus;
}