/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the Collabora Office project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#pragma once

#include "pivotcachebuffer.hxx"
#include "PivotTableFormat.hxx"
#include "stylesbuffer.hxx"
#include <rtl/ref.hxx>
#include <dpobject.hxx>

namespace com::sun::star {
    namespace sheet { class XDataPilotDescriptor; }
    namespace sheet { class XDataPilotField; }
}

class ScDPObject;
class ScDataPilotDescriptorBase;
class ScTokenArray;

namespace oox::xls {

class PivotTable;

struct PTFieldItemModel
{
    sal_Int32           mnCacheItem;        /// Index to shared item in pivot cache.
    sal_Int32           mnType;             /// Type of the item.
    OUString       msCaption;          /// User caption of the item
    bool                mbShowDetails;      /// True = show item details (items of child fields).
    bool                mbHidden;           /// True = item is hidden.

    explicit            PTFieldItemModel();

    /** Sets item type for BIFF import. */
    void                setBiffType( sal_uInt16 nType );
};

struct PTFieldModel
{
    sal_Int32           mnAxis;             /// Axis this field is assigned to (none, row, column, page).
    sal_Int32           mnNumFmtId;         /// Number format for field items.
    sal_Int32           mnAutoShowItems;    /// Number of items (or percent/sum) to be shown in auto show filter.
    sal_Int32           mnAutoShowRankBy;   /// Index of the data field auto show filter is based on.
    sal_Int32           mnSortType;         /// Autosorting type.
    sal_Int32           mnSortRefField;     /// Reference field for autosorting.
    sal_Int32           mnSortRefItem;      /// Item in reference field for autosorting.
    bool                mbDataField;        /// True = field appears in data area.
    bool                mbDefaultSubtotal;  /// True = show default subtotals.
    bool                mbSumSubtotal;      /// True = show sum subtotals.
    bool                mbCountASubtotal;   /// True = show count all subtotals.
    bool                mbAverageSubtotal;  /// True = show average subtotals.
    bool                mbMaxSubtotal;      /// True = show maximum subtotals.
    bool                mbMinSubtotal;      /// True = show minimum subtotals.
    bool                mbProductSubtotal;  /// True = show product subtotals.
    bool                mbCountSubtotal;    /// True = show count numbers subtotals.
    bool                mbStdDevSubtotal;   /// True = show standard deviation subtotals.
    bool                mbStdDevPSubtotal;  /// True = show standard deviation of population subtotals.
    bool                mbVarSubtotal;      /// True = show variance subtotals.
    bool                mbVarPSubtotal;     /// True = show variance of population subtotals.
    bool                mbShowAll;          /// True = show items without data.
    bool                mbOutline;          /// True = show in outline view, false = show in tabular view.
    bool                mbSubtotalTop;      /// True = show subtotals on top of items in outline or compact mode.
    bool                mbCompact;          /// True = show in compact view, false = show in either outline or tabular view.
    bool                mbInsertBlankRow;   /// True = insert blank rows after items.
    bool                mbInsertPageBreak;  /// True = insert page breaks after items.
    bool                mbAutoShow;         /// True = auto show (top 10) filter enabled.
    bool                mbTopAutoShow;      /// True = auto show filter shows top entries, false = bottom.
    bool                mbMultiPageItems;   /// True = multiple items selectable in page dimension.

    explicit            PTFieldModel();

    /** Sets axis type for BIFF import. */
    void                setBiffAxis( sal_uInt8 nAxisFlags );
};

struct PTPageFieldModel
{
    OUString     maName;             /// Unique name of the page field.
    sal_Int32           mnField;            /// Base pivot field.
    sal_Int32           mnItem;             /// Index of field item that is shown by the page field.

    explicit            PTPageFieldModel();
};

struct PTDataFieldModel
{
    OUString     maName;             /// Name of the data field.
    sal_Int32           mnField;            /// Base pivot field.
    sal_Int32           mnSubtotal;         /// Subtotal aggregation function.
    sal_Int32           mnShowDataAs;       /// Show data as, based on another field.
    sal_Int32           mnBaseField;        /// Base field for 'show data as'.
    sal_Int32           mnBaseItem;         /// Base item for 'show data as'.
    sal_Int32           mnNumFmtId;         /// Number format for the result.

    explicit            PTDataFieldModel();

    /** Sets the subtotal aggregation function for BIFF import. */
    void                setBiffSubtotal( sal_Int32 nSubtotal );
    /** Sets the 'show data as' type for BIFF import. */
    void                setBiffShowDataAs( sal_Int32 nShowDataAs );
};

class PivotTableField : public WorkbookHelper
{
public:
    explicit            PivotTableField( PivotTable& rPivotTable, sal_Int32 nFieldIndex );

    /** Imports pivot field settings from the pivotField element. */
    void                importPivotField( const AttributeList& rAttribs );
    /** Imports settings of an item in this pivot field from the item element. */
    void                importItem( const AttributeList& rAttribs );
    /** Imports pivot field reference settings from the reference element. */
    void                importReference( const AttributeList& rAttribs );
    /** Imports pivot field item reference settings from the x element. */
    void                importReferenceItem( const AttributeList& rAttribs );

    /** Imports pivot field settings from the PTFIELD record. */
    void                importPTField( SequenceInputStream& rStrm );
    /** Imports settings of an item in this pivot field from the PTFITEM record. */
    void                importPTFItem( SequenceInputStream& rStrm );
    /** Imports pivot field reference settings from the PTREFERENCE record. */
    void                importPTReference( SequenceInputStream& rStrm );
    /** Imports pivot field item reference settings from the PTREFERENCEITEM record. */
    void                importPTReferenceItem( SequenceInputStream& rStrm );

    /** Finalizes the field after import, creates grouping and other settings. */
    void finalizeImport(const rtl::Reference<ScDataPilotDescriptorBase>& rxDPDesc);
    /** Finalizes the grouped date field after import. */
    void                finalizeDateGroupingImport(
                            const rtl::Reference< ScDataPilotFieldObj >& rxBaseDPField,
                            sal_Int32 nBaseFieldIdx );
    /** Finalizes the grouped field after import. */
    void                finalizeParentGroupingImport(
                            const rtl::Reference< ScDataPilotFieldObj >& rxBaseDPField,
                            const PivotCacheField& rBaseCacheField,
                            PivotCacheGroupItemVector& orItemNames );
    void finalizeImportBasedOnCache(const rtl::Reference<ScDataPilotDescriptorBase>& rxDPDesc);

    /** Returns the name of the DataPilot field in the fields collection. */
    const OUString& getDPFieldName() const { return maDPFieldName; }

    /** Converts dimension and other settings for a row field. */
    void                convertRowField();
    /** Converts dimension and other settings for a column field. */
    void                convertColField();
    /** Converts dimension and other settings for a hidden field. */
    void                convertHiddenField();
    /** Converts dimension and other settings for a page field */
    void                convertPageField( const PTPageFieldModel& rPageField );
    /** Converts dimension and other settings for a data field. */
    void                convertDataField( const PTDataFieldModel& rDataField );

private:
    /** Converts dimension and other settings for row, column, page, or hidden fields. */
    rtl::Reference< ScDataPilotFieldObj >
                        convertRowColPageField( sal_Int32 nAxis );

    /** Resolves calculated field info from cache.
        Returns field name and whether this is a calculated field. */
    std::pair<OUString, bool> resolveCalculatedField( sal_Int32 nDatabaseIdx );

    /** Compiles the calculated field formula (if any) and returns the token array. */
    std::shared_ptr<ScTokenArray> compileCalculatedFieldFormula();

private:
    typedef ::std::vector< PTFieldItemModel > ItemModelVector;

    PivotTable&         mrPivotTable;       /// The parent pivot table object.
    ItemModelVector     maItems;            /// All items of this field.
    PTFieldModel        maModel;            /// Pivot field settings.
    OUString            maDPFieldName;      /// Name of the field in DataPilot field collection.
    sal_Int32           mnFieldIndex;       /// Zero-based index of this field.
    std::optional<OUString> maDPFieldFormula;/// Formula of the field in DataPilot field collection.
    const ScTokenArray* mpCalcFieldTokens;  /// Pre-compiled formula tokens (BIFF12), not owned.
};

struct PTFilterModel
{
    OUString     maName;             /// Name of the field filter.
    OUString     maDescription;      /// Description of the field filter.
    OUString     maStrValue1;        /// First string value for label filter.
    OUString     maStrValue2;        /// Second string value for label filter.
    double              mfValue;            /// Number of items or percent or sum to be shown.
    sal_Int32           mnField;            /// Base pivot field.
    sal_Int32           mnMemPropField;     /// Member property field.
    sal_Int32           mnType;             /// Filter type.
    sal_Int32           mnEvalOrder;        /// Evaluation order index.
    sal_Int32           mnId;               /// Unique identifier.
    sal_Int32           mnMeasureField;     /// Data field for filter calculation.
    sal_Int32           mnMeasureHier;      /// Hierarchy for filter calculation.
    bool                mbTopFilter;        /// True = filter shows top entries, false = bottom.

    explicit            PTFilterModel();
};

class PivotTableFilter : public WorkbookHelper
{
public:
    explicit            PivotTableFilter( const PivotTable& rPivotTable );

    /** Reads the settings of a field filter from the filter element. */
    void                importFilter( const AttributeList& rAttribs );
    /** Reads additional settings of a field filter from the top10 element. */
    void                importTop10( const AttributeList& rAttribs );

    /** Reads the settings of a field filter from the PTFILTER record. */
    void                importPTFilter( SequenceInputStream& rStrm );
    /** Reads additional settings of a field filter from the TOP10FILTER record. */
    void                importTop10Filter( SequenceInputStream& rStrm );

    /** Applies the filter to the associated pivot table field if possible. */
    void                finalizeImport();

private:
    const PivotTable&   mrPivotTable;
    PTFilterModel       maModel;
};

struct PTDefinitionModel : public AutoFormatModel
{
    OUString     maName;
    OUString     maDataCaption;
    OUString     maGrandTotalCaption;
    OUString     maRowHeaderCaption;
    OUString     maColHeaderCaption;
    OUString     maErrorCaption;
    OUString     maMissingCaption;
    OUString     maPageStyle;
    OUString     maPivotTableStyle;
    OUString     maVacatedStyle;
    OUString     maTag;
    sal_Int32           mnCacheId;
    sal_Int32           mnDataPosition;
    sal_Int32           mnPageWrap;
    sal_Int32           mnIndent;
    sal_Int32           mnChartFormat;
    bool                mbDataOnRows;
    bool                mbShowError;
    bool                mbShowMissing;
    bool                mbShowItems;
    bool                mbDisableFieldList;
    bool                mbShowCalcMembers;
    bool                mbVisualTotals;
    bool                mbShowDrill;
    bool                mbPrintDrill;
    bool                mbEnableDrill;
    bool                mbPreserveFormatting;
    bool                mbUseAutoFormat;
    bool                mbPageOverThenDown;
    bool                mbSubtotalHiddenItems;
    bool                mbRowGrandTotals;
    bool                mbColGrandTotals;
    bool                mbFieldPrintTitles;
    bool                mbItemPrintTitles;
    bool                mbMergeItem;
    bool                mbShowEmptyRow;
    bool                mbShowEmptyCol;
    bool                mbShowHeaders;
    bool                mbFieldListSortAsc;
    bool                mbCustomListSort;

    explicit            PTDefinitionModel();
};

struct PTLocationModel
{
    ScRange             maRange;            /// Target cell range for the pivot table.
    sal_Int32           mnFirstHeaderRow;   /// First row of header cells (relative in pivot table).
    sal_Int32           mnFirstDataRow;     /// First row of data cells (relative in pivot table).
    sal_Int32           mnFirstDataCol;     /// First column of data cells (relative in pivot table).
    sal_Int32           mnRowPageCount;     /// Number of rows in page filter area.
    sal_Int32           mnColPageCount;     /// Number of columns in page filter area.

    explicit            PTLocationModel();
};

class PivotTable : public WorkbookHelper
{
public:
    explicit            PivotTable( const WorkbookHelper& rHelper );

    /** Reads global pivot table settings from the pivotTableDefinition element. */
    void                importPivotTableDefinition( const AttributeList& rAttribs );
    /** Reads the location of the pivot table from the location element. */
    void                importLocation( const AttributeList& rAttribs, sal_Int16 nSheet );
    /** Reads the index of a field located in the row dimension. */
    void                importRowField( const AttributeList& rAttribs );
    /** Reads the index of a field located in the column dimension. */
    void                importColField( const AttributeList& rAttribs );
    /** Reads the settings of a field located in the page dimension from the pageField element. */
    void                importPageField( const AttributeList& rAttribs );
    /** Reads the settings of a field located in the data dimension from the dataField element. */
    void                importDataField( const AttributeList& rAttribs );
    /** Reads global pivot table settings from the PTDEFINITION record. */
    void                importPTDefinition( SequenceInputStream& rStrm );
    /** Reads the location of the pivot table from the PTLOCATION record. */
    void                importPTLocation( SequenceInputStream& rStrm, sal_Int16 nSheet );
    /** Reads the indexes of all fields located in the row dimension from a PTROWFIELDS record. */
    void                importPTRowFields( SequenceInputStream& rStrm );
    /** Reads the indexes of all fields located in the column dimension from a PTCOLFIELDS record. */
    void                importPTColFields( SequenceInputStream& rStrm );
    /** Reads the settings of a field located in the page dimension from the PTPAGEFIELD record. */
    void                importPTPageField( SequenceInputStream& rStrm );
    /** Reads the settings of a field located in the data dimension from the PTDATAFIELD record. */
    void                importPTDataField( SequenceInputStream& rStrm );

    /** Creates and returns a new pivot table field. */
    PivotTableField&    createTableField();
    /** Creates and returns a new pivot table filter. */
    PivotTableFilter&   createTableFilter();
    /** Creates and returns a new pivot table format. */
    PivotTableFormat& createFormat();
    /** Inserts the pivot table into the sheet. */
    void                finalizeImport();
    /** Finalizes all fields, finds field names and creates grouping fields. */
    void                finalizeFieldsImport();
    /** Creates all date group fields for the specified cache field after import. */
    void                finalizeDateGroupingImport(
                            const rtl::Reference< ScDataPilotFieldObj >& rxBaseDPField,
                            sal_Int32 nBaseFieldIdx );
    /** Creates all grouped fields for the specified cache field after import. */
    void                finalizeParentGroupingImport(
                            const rtl::Reference< ScDataPilotFieldObj >& rxBaseDPField,
                            const PivotCacheField& rBaseCacheField,
                            PivotCacheGroupItemVector& orItemNames );

    /** Returns the associated data pilot field for the specified pivot table field. */
    rtl::Reference< ScDataPilotFieldObj >
                        getDataPilotField( const OUString& rFieldName ) const;
    /** Returns the associated data pilot field for the specified pivot table field. */
    rtl::Reference< ScDataPilotFieldObj >
                        getDataPilotField( sal_Int32 nFieldIdx ) const;
    /** Returns the data layout field used to store all data fields in row/col dimension. */
    rtl::Reference< ScDataPilotFieldObj >
                        getDataLayoutField() const;

    /** Returns the cache field with the specified index. */
    PivotCacheField* getCacheField( sal_Int32 nFieldIdx );
    const PivotCacheField* getCacheField( sal_Int32 nFieldIdx ) const;
    /** Returns the base cache field of the data field item with the specified index. */
    const PivotCacheField* getCacheFieldOfDataField( sal_Int32 nDataItemIdx ) const;
    /** Returns the source column index of the pivot field with the passed index, or -1. */
    sal_Int32           getCacheDatabaseIndex( sal_Int32 nFieldIdx ) const;

    ScDPObject* getDPObject() { return mpDPObject; }
    sc::PivotTableStyleInfo& getStyleInfo() { return maStyleInfo; }
private:
    typedef RefVector< PivotTableField >        PivotTableFieldVector;
public:
    /** Returns pivot table fields. */
    const PivotTableFieldVector& getFields() { return maFields; }
private:
    typedef RefVector< PivotTableFilter >       PivotTableFilterVector;
    typedef ::std::vector< sal_Int32 >          IndexVector;
    typedef ::std::vector< PTPageFieldModel >   PageFieldVector;
    typedef ::std::vector< PTDataFieldModel >   DataFieldVector;

private:
    /** Returns a pivot table field by its index. */
    PivotTableField*    getTableField( sal_Int32 nFieldIdx );

    /** Reads a field index for the row or column dimension. */
    static void         importField( IndexVector& orFields, const AttributeList& rAttribs );
    /** Reads an array of field indexes for the row or column dimension. */
    static void         importFields( IndexVector& orFields, SequenceInputStream& rStrm );

private:
    ScDPObject*           mpDPObject;
    PivotTableFieldVector maFields;         /// All pivot table fields.
    PivotTableField       maDataField;        /// Data layout field.
    IndexVector           maRowFields;        /// Indexes to fields in row dimension.
    IndexVector           maColFields;        /// Indexes to fields in column dimension.
    PageFieldVector       maPageFields;       /// Settings for all fields in page dimension.
    DataFieldVector       maDataFields;       /// Settings for all fields in data area.
    PivotTableFilterVector maFilters;       /// All field filters.
    PivotTableFormatVector maFormats;
    PTDefinitionModel     maDefModel;         /// Global pivot table settings.
    PTLocationModel       maLocationModel;    /// Location settings of the pivot table.
    PivotCache*           mpPivotCache;       /// The pivot cache this table is based on.
    rtl::Reference< ScDataPilotDescriptorBase > // css::sheet::XDataPilotDescriptor
                          mxDPDescriptor;     /// Descriptor of the DataPilot object.
    sc::PivotTableStyleInfo maStyleInfo;
};

class PivotTableBuffer : public WorkbookHelper
{
public:
    explicit            PivotTableBuffer( const WorkbookHelper& rHelper );

    /** Creates and returns a new pivot table. */
    PivotTable&         createPivotTable();

    /** Inserts all pivot tables into the sheet. */
    void                finalizeImport();

private:
    typedef RefVector< PivotTable > PivotTableVector;
    PivotTableVector    maTables;
};

} // namespace oox::xls

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