/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:   Calendar Lunar Plugin 

*

*/

#include "calendarui_debug.h"

#include "calenlunarinfoprovider.h"

#include "calenlunarinfo.h"

#include "calensolarterms.h"

#include <calendarconverter.h>

// ---------------------------------------------------------

// CCalenCalanderConverter::CalculateCelestialIndex

// Calculates a Heavenly stem's index and a Terrestrial branch's index

// ---------------------------------------------------------

//

static void CelestialIndex(const TChineseDate& aChineseDate,

                           TInt& aCelestialIndex, 

                           TInt& aTerrestrialIndex)

    {

    TRACE_ENTRY_POINT;

    aCelestialIndex = aChineseDate.iYear % 10;

    if (aCelestialIndex == 0)

        {

        aCelestialIndex = 9;

        }

    else

        {

        aCelestialIndex--;

        }

    aTerrestrialIndex = aChineseDate.iYear % 12;

    if (aTerrestrialIndex == 0)

        {

        aTerrestrialIndex = 11;

        }

    else

        {

        aTerrestrialIndex--;

        }

    TRACE_EXIT_POINT;

    }

// -----------------------------------------------------------------------------

// CCalenCalanderConverter::ChineseFestival

// -----------------------------------------------------------------------------

//

static TCalenLunarInfo::TFestival ChineseFestival(

    const TChineseDate& aChineseDate, 

    const TChineseDate& aNextDate)

    {

    TRACE_ENTRY_POINT;

    TCalenLunarInfo::TFestival index = TCalenLunarInfo::ENoFestival;

    if (!aChineseDate.iLeapMonth)

        {

        if (aChineseDate.iMonth == 1 && aChineseDate.iDay == 1)

            {

            index = TCalenLunarInfo::EFestivalSpring;

            }

        else if (aChineseDate.iMonth == 1 && aChineseDate.iDay == 15)

            {

            index = TCalenLunarInfo::EFestivalLantern;

            }

        else if (aChineseDate.iMonth == 5 && aChineseDate.iDay == 5)

            {

            index = TCalenLunarInfo::EFestivalDragonBoat;

            }

        else if (aChineseDate.iMonth == 7 && aChineseDate.iDay == 7)

            {

            index = TCalenLunarInfo::EFestivalSeventhNight;

            }

        else if (aChineseDate.iMonth == 7 && aChineseDate.iDay == 15)

            {

            index = TCalenLunarInfo::EFestivalGhost;

            }

        else if (aChineseDate.iMonth == 8 && aChineseDate.iDay == 15)

            {

            index = TCalenLunarInfo::EFestivalMidAutumn;

            }

        else if (aChineseDate.iMonth == 9 && aChineseDate.iDay == 9)

            {

            index = TCalenLunarInfo::EFestivalDoubleNinth;

            }

        else if (aChineseDate.iMonth == 12 && aChineseDate.iDay == 8)

            {

            index = TCalenLunarInfo::EFestivalTwelfthMonth;

            }

        else

            {

            // nothing

            }

        }

    if (!aNextDate.iLeapMonth &&

        aNextDate.iMonth == 1 && aNextDate.iDay == 1)

        {

        index = TCalenLunarInfo::EFestivalNewYearEve;

        }

    TRACE_EXIT_POINT;

    return index;

    }

// -----------------------------------------------------------------------------

// CCalenLunarInfoProvider::NewL

// -----------------------------------------------------------------------------

//

EXPORT_C CCalenLunarInfoProvider* CCalenLunarInfoProvider::NewL(RFs& aFs)

    {

    TRACE_ENTRY_POINT;

    CCalenLunarInfoProvider* self = new (ELeave) CCalenLunarInfoProvider();

    CleanupStack::PushL(self);

    self->ConstructL(aFs);

    CleanupStack::Pop(self);

    TRACE_EXIT_POINT;

    return self;

    }

// -----------------------------------------------------------------------------

// CCalenLunarInfoProvider::~CCalenLunarInfoProvider

// -----------------------------------------------------------------------------

//

EXPORT_C CCalenLunarInfoProvider::~CCalenLunarInfoProvider()

    {

    TRACE_ENTRY_POINT;

    delete iSolarTerms; 

    delete iConverter;

    TRACE_EXIT_POINT;

    }

// -----------------------------------------------------------------------------

// CCalenLunarInfoProvider::CCalenLunarInfoProvider

// -----------------------------------------------------------------------------

//

CCalenLunarInfoProvider::CCalenLunarInfoProvider()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

// -----------------------------------------------------------------------------

// CCalenLunarInfoProvider::ConstructL

// -----------------------------------------------------------------------------

//

void CCalenLunarInfoProvider::ConstructL(RFs& aFs)

    {

    TRACE_ENTRY_POINT;

    iConverter = CChineseCalendarConverter::NewL();

    iSolarTerms = CCalenSolarTerms::NewL(aFs);

    TRACE_EXIT_POINT;

    }

// -----------------------------------------------------------------------------

// CCalenLunarInfoProvider::GetLunarInfoL

// -----------------------------------------------------------------------------

//

EXPORT_C TCalenLunarInfo CCalenLunarInfoProvider::GetLunarInfoL( const TTime& aDay ) 

    {

    TRACE_ENTRY_POINT;

    TDateTime dayDt = aDay.DateTime();

    TTime nextDay = aDay + TTimeIntervalDays(1);

    TDateTime nextDayDt = nextDay.DateTime();

    TChineseDate chineseDate;

    TChineseDate nextChineseDate;

    iConverter->DateTimeToChineseL(dayDt, chineseDate);

    iConverter->DateTimeToChineseL(nextDayDt, nextChineseDate);

    TCalenLunarInfo info;

    info.iLunarDate = chineseDate;

    info.iGregorianDate = aDay;

    info.iFestival = ChineseFestival( chineseDate, nextChineseDate );

    info.iSolarTerm = iSolarTerms->CheckSolarTermDateL( dayDt );

    CelestialIndex( chineseDate, info.iHeavenlyStem, info.iTerrestialBranch );

    TRACE_EXIT_POINT;

    return info;

    }