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#include <QtGui/qtguiglobal.h>
#if QT_CONFIG(accessibility)

#include "qwinrtuiatableprovider.h"
#include "qwinrtuiamainprovider.h"
#include "qwinrtuiametadatacache.h"
#include "qwinrtuiautils.h"

#include <QtGui/QAccessible>
#include <QtGui/QAccessibleInterface>
#include <QtCore/QLoggingCategory>
#include <QtCore/QString>
#include <QtCore/private/qeventdispatcher_winrt_p.h>

QT_BEGIN_NAMESPACE

using namespace QWinRTUiAutomation;
using namespace ABI::Windows::UI::Xaml::Automation;
using namespace ABI::Windows::UI::Xaml::Automation::Provider;
using namespace ABI::Windows::UI::Xaml::Automation::Peers;

QWinRTUiaTableProvider::QWinRTUiaTableProvider(QAccessible::Id id) :
    QWinRTUiaBaseProvider(id)
{
    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
}

QWinRTUiaTableProvider::~QWinRTUiaTableProvider()
{
    qCDebug(lcQpaUiAutomation) << __FUNCTION__;
}

// Returns the primary direction of traversal for the table.
HRESULT STDMETHODCALLTYPE QWinRTUiaTableProvider::get_RowOrColumnMajor(RowOrColumnMajor *value)
{
    qCDebug(lcQpaUiAutomation) << __FUNCTION__;

    if (!value)
        return E_INVALIDARG;
    *value = RowOrColumnMajor_Indeterminate;
    return S_OK;
}

// Gets the providers for all the column headers in the table.
HRESULT STDMETHODCALLTYPE QWinRTUiaTableProvider::GetColumnHeaders(UINT32 *returnValueSize, IIRawElementProviderSimple ***returnValue)
{
    qCDebug(lcQpaUiAutomation) << __FUNCTION__;

    if (!returnValueSize || !returnValue)
        return E_INVALIDARG;
    *returnValueSize = 0;
    *returnValue = nullptr;

    auto accid = id();
    auto elementIds = QSharedPointer<QList<QAccessible::Id>>(new QList<QAccessible::Id>);
    auto ptrElementIds = new QSharedPointer<QList<QAccessible::Id>>(elementIds);

    if (!SUCCEEDED(QEventDispatcherWinRT::runOnMainThread([accid, ptrElementIds]() {
        if (QAccessibleInterface *accessible = accessibleForId(accid)) {
            if (QAccessibleTableInterface *tableInterface = accessible->tableInterface()) {
                for (int i = 0; i < tableInterface->columnCount(); ++i) {
                    if (QAccessibleInterface *cell = tableInterface->cellAt(0, i)) {
                        QWinRTUiaMetadataCache::instance()->load(idForAccessible(cell));
                        if (QAccessibleTableCellInterface *tableCellInterface = cell->tableCellInterface()) {
                            QList<QAccessibleInterface *> headers = tableCellInterface->columnHeaderCells();
                            for (auto header : qAsConst(headers)) {
                                QAccessible::Id headerId = idForAccessible(header);
                                QWinRTUiaMetadataCache::instance()->load(headerId);
                                (*ptrElementIds)->append(headerId);
                            }
                        }
                    }
                }
            }
        }
        delete ptrElementIds;
        return S_OK;
    }))) {
        return E_FAIL;
    }

    return QWinRTUiaMainProvider::rawProviderArrayForAccessibleIdList(*elementIds, returnValueSize, returnValue);
}

// Gets the providers for all the row headers in the table.
HRESULT STDMETHODCALLTYPE QWinRTUiaTableProvider::GetRowHeaders(UINT32 *returnValueSize, IIRawElementProviderSimple ***returnValue)
{
    qCDebug(lcQpaUiAutomation) << __FUNCTION__;

    if (!returnValueSize || !returnValue)
        return E_INVALIDARG;
    *returnValueSize = 0;
    *returnValue = nullptr;

    auto accid = id();
    auto elementIds = QSharedPointer<QList<QAccessible::Id>>(new QList<QAccessible::Id>);
    auto ptrElementIds = new QSharedPointer<QList<QAccessible::Id>>(elementIds);

    if (!SUCCEEDED(QEventDispatcherWinRT::runOnMainThread([accid, ptrElementIds]() {
        if (QAccessibleInterface *accessible = accessibleForId(accid)) {
            if (QAccessibleTableInterface *tableInterface = accessible->tableInterface()) {
                for (int i = 0; i < tableInterface->rowCount(); ++i) {
                    if (QAccessibleInterface *cell = tableInterface->cellAt(i, 0)) {
                        QWinRTUiaMetadataCache::instance()->load(idForAccessible(cell));
                        if (QAccessibleTableCellInterface *tableCellInterface = cell->tableCellInterface()) {
                            QList<QAccessibleInterface *> headers = tableCellInterface->rowHeaderCells();
                            for (auto header : qAsConst(headers)) {
                                QAccessible::Id headerId = idForAccessible(header);
                                QWinRTUiaMetadataCache::instance()->load(headerId);
                                (*ptrElementIds)->append(headerId);
                            }
                        }
                    }
                }
            }
        }
        delete ptrElementIds;
        return S_OK;
    }))) {
        return E_FAIL;
    }

    return QWinRTUiaMainProvider::rawProviderArrayForAccessibleIdList(*elementIds, returnValueSize, returnValue);
}

QT_END_NAMESPACE

#endif // QT_CONFIG(accessibility)