// Copyright 2016 - 2023 The excelize Authors. All rights reserved. Use of
// this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
//
// Package excelize providing a set of functions that allow you to write to and
// read from XLAM / XLSM / XLSX / XLTM / XLTX files. Supports reading and
// writing spreadsheet documents generated by Microsoft Excel™ 2007 and later.
// Supports complex components by high compatibility, and provided streaming
// API for generating or reading data from a worksheet with huge amounts of
// data. This library needs Go version 1.16 or later.

package excelize

import (
	"encoding/xml"
	"sync"
)

// xlsxRelationships describe references from parts to other internal resources
// in the package or to external resources.
type xlsxRelationships struct {
	mu            sync.Mutex
	XMLName       xml.Name           `xml:"http://schemas.openxmlformats.org/package/2006/relationships Relationships"`
	Relationships []xlsxRelationship `xml:"Relationship"`
}

// xlsxRelationship contains relations which maps id and XML.
type xlsxRelationship struct {
	ID         string `xml:"Id,attr"`
	Target     string `xml:",attr"`
	Type       string `xml:",attr"`
	TargetMode string `xml:",attr,omitempty"`
}

// xlsxWorkbook contains elements and attributes that encompass the data
// content of the workbook. The workbook's child elements each have their own
// subclause references.
type xlsxWorkbook struct {
	XMLName                xml.Name                 `xml:"http://schemas.openxmlformats.org/spreadsheetml/2006/main workbook"`
	Conformance            string                   `xml:"conformance,attr,omitempty"`
	FileVersion            *xlsxFileVersion         `xml:"fileVersion"`
	FileSharing            *xlsxExtLst              `xml:"fileSharing"`
	WorkbookPr             *xlsxWorkbookPr          `xml:"workbookPr"`
	AlternateContent       *xlsxAlternateContent    `xml:"mc:AlternateContent"`
	DecodeAlternateContent *xlsxInnerXML            `xml:"http://schemas.openxmlformats.org/markup-compatibility/2006 AlternateContent"`
	WorkbookProtection     *xlsxWorkbookProtection  `xml:"workbookProtection"`
	BookViews              *xlsxBookViews           `xml:"bookViews"`
	Sheets                 xlsxSheets               `xml:"sheets"`
	FunctionGroups         *xlsxFunctionGroups      `xml:"functionGroups"`
	ExternalReferences     *xlsxExternalReferences  `xml:"externalReferences"`
	DefinedNames           *xlsxDefinedNames        `xml:"definedNames"`
	CalcPr                 *xlsxCalcPr              `xml:"calcPr"`
	OleSize                *xlsxExtLst              `xml:"oleSize"`
	CustomWorkbookViews    *xlsxCustomWorkbookViews `xml:"customWorkbookViews"`
	PivotCaches            *xlsxPivotCaches         `xml:"pivotCaches"`
	SmartTagPr             *xlsxExtLst              `xml:"smartTagPr"`
	SmartTagTypes          *xlsxExtLst              `xml:"smartTagTypes"`
	WebPublishing          *xlsxExtLst              `xml:"webPublishing"`
	FileRecoveryPr         *xlsxFileRecoveryPr      `xml:"fileRecoveryPr"`
	WebPublishObjects      *xlsxExtLst              `xml:"webPublishObjects"`
	ExtLst                 *xlsxExtLst              `xml:"extLst"`
}

// xlsxFileRecoveryPr maps sheet recovery information. This element defines
// properties that track the state of the workbook file, such as whether the
// file was saved during a crash, or whether it should be opened in auto-recover
// mode.
type xlsxFileRecoveryPr struct {
	AutoRecover     bool `xml:"autoRecover,attr,omitempty"`
	CrashSave       bool `xml:"crashSave,attr,omitempty"`
	DataExtractLoad bool `xml:"dataExtractLoad,attr,omitempty"`
	RepairLoad      bool `xml:"repairLoad,attr,omitempty"`
}

// xlsxWorkbookProtection directly maps the workbookProtection element. This
// element specifies options for protecting data in the workbook. Applications
// might use workbook protection to prevent anyone from accidentally changing,
// moving, or deleting important data. This protection can be ignored by
// applications which choose not to support this optional protection mechanism.
// When a password is to be hashed and stored in this element, it shall be
// hashed as defined below, starting from a UTF-16LE encoded string value. If
// there is a leading BOM character (U+FEFF) in the encoded password it is
// removed before hash calculation.
type xlsxWorkbookProtection struct {
	LockRevision           bool   `xml:"lockRevision,attr,omitempty"`
	LockStructure          bool   `xml:"lockStructure,attr,omitempty"`
	LockWindows            bool   `xml:"lockWindows,attr,omitempty"`
	RevisionsAlgorithmName string `xml:"revisionsAlgorithmName,attr,omitempty"`
	RevisionsHashValue     string `xml:"revisionsHashValue,attr,omitempty"`
	RevisionsSaltValue     string `xml:"revisionsSaltValue,attr,omitempty"`
	RevisionsSpinCount     int    `xml:"revisionsSpinCount,attr,omitempty"`
	WorkbookAlgorithmName  string `xml:"workbookAlgorithmName,attr,omitempty"`
	WorkbookHashValue      string `xml:"workbookHashValue,attr,omitempty"`
	WorkbookSaltValue      string `xml:"workbookSaltValue,attr,omitempty"`
	WorkbookSpinCount      int    `xml:"workbookSpinCount,attr,omitempty"`
}

// xlsxFileVersion directly maps the fileVersion element. This element defines
// properties that track which version of the application accessed the data and
// source code contained in the file.
type xlsxFileVersion struct {
	AppName      string `xml:"appName,attr,omitempty"`
	CodeName     string `xml:"codeName,attr,omitempty"`
	LastEdited   string `xml:"lastEdited,attr,omitempty"`
	LowestEdited string `xml:"lowestEdited,attr,omitempty"`
	RupBuild     string `xml:"rupBuild,attr,omitempty"`
}

// xlsxWorkbookPr directly maps the workbookPr element from the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main This element
// defines a collection of workbook properties.
type xlsxWorkbookPr struct {
	Date1904                   bool   `xml:"date1904,attr,omitempty"`
	ShowObjects                string `xml:"showObjects,attr,omitempty"`
	ShowBorderUnselectedTables *bool  `xml:"showBorderUnselectedTables,attr"`
	FilterPrivacy              bool   `xml:"filterPrivacy,attr,omitempty"`
	PromptedSolutions          bool   `xml:"promptedSolutions,attr,omitempty"`
	ShowInkAnnotation          *bool  `xml:"showInkAnnotation,attr"`
	BackupFile                 bool   `xml:"backupFile,attr,omitempty"`
	SaveExternalLinkValues     *bool  `xml:"saveExternalLinkValues,attr"`
	UpdateLinks                string `xml:"updateLinks,attr,omitempty"`
	CodeName                   string `xml:"codeName,attr,omitempty"`
	HidePivotFieldList         bool   `xml:"hidePivotFieldList,attr,omitempty"`
	ShowPivotChartFilter       bool   `xml:"showPivotChartFilter,attr,omitempty"`
	AllowRefreshQuery          bool   `xml:"allowRefreshQuery,attr,omitempty"`
	PublishItems               bool   `xml:"publishItems,attr,omitempty"`
	CheckCompatibility         bool   `xml:"checkCompatibility,attr,omitempty"`
	AutoCompressPictures       *bool  `xml:"autoCompressPictures,attr"`
	RefreshAllConnections      bool   `xml:"refreshAllConnections,attr,omitempty"`
	DefaultThemeVersion        string `xml:"defaultThemeVersion,attr,omitempty"`
}

// xlsxBookViews directly maps the bookViews element. This element specifies the
// collection of workbook views of the enclosing workbook. Each view can specify
// a window position, filter options, and other configurations. There is no
// limit on the number of workbook views that can be defined for a workbook.
type xlsxBookViews struct {
	WorkBookView []xlsxWorkBookView `xml:"workbookView"`
}

// xlsxWorkBookView directly maps the workbookView element from the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main This element
// specifies a single Workbook view.
type xlsxWorkBookView struct {
	Visibility             string  `xml:"visibility,attr,omitempty"`
	Minimized              bool    `xml:"minimized,attr,omitempty"`
	ShowHorizontalScroll   *bool   `xml:"showHorizontalScroll,attr"`
	ShowVerticalScroll     *bool   `xml:"showVerticalScroll,attr"`
	ShowSheetTabs          *bool   `xml:"showSheetTabs,attr"`
	XWindow                string  `xml:"xWindow,attr,omitempty"`
	YWindow                string  `xml:"yWindow,attr,omitempty"`
	WindowWidth            int     `xml:"windowWidth,attr,omitempty"`
	WindowHeight           int     `xml:"windowHeight,attr,omitempty"`
	TabRatio               float64 `xml:"tabRatio,attr,omitempty"`
	FirstSheet             int     `xml:"firstSheet,attr,omitempty"`
	ActiveTab              int     `xml:"activeTab,attr,omitempty"`
	AutoFilterDateGrouping *bool   `xml:"autoFilterDateGrouping,attr"`
}

// xlsxSheets directly maps the sheets element from the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main.
type xlsxSheets struct {
	Sheet []xlsxSheet `xml:"sheet"`
}

// xlsxSheet defines a sheet in this workbook. Sheet data is stored in a
// separate part.
type xlsxSheet struct {
	Name    string `xml:"name,attr,omitempty"`
	SheetID int    `xml:"sheetId,attr,omitempty"`
	ID      string `xml:"http://schemas.openxmlformats.org/officeDocument/2006/relationships id,attr"`
	State   string `xml:"state,attr,omitempty"`
}

// xlsxFunctionGroup represents a single function group.
type xlsxFunctionGroup struct {
	Name string `xml:"name,attr"`
}

// xlsxFunctionGroups defines the collection of function groups for the workbook.
type xlsxFunctionGroups struct {
	BuiltInGroupCount *int                `xml:"builtInGroupCount,attr"`
	FunctionGroup     []xlsxFunctionGroup `xml:"functionGroup"`
}

// xlsxExternalReferences directly maps the externalReferences element of the
// external workbook references part.
type xlsxExternalReferences struct {
	ExternalReference []xlsxExternalReference `xml:"externalReference"`
}

// xlsxExternalReference directly maps the externalReference element of the
// external workbook references part.
type xlsxExternalReference struct {
	RID string `xml:"http://schemas.openxmlformats.org/officeDocument/2006/relationships id,attr,omitempty"`
}

// xlsxPivotCaches element enumerates pivot cache definition parts used by pivot
// tables and formulas in this workbook.
type xlsxPivotCaches struct {
	PivotCache []xlsxPivotCache `xml:"pivotCache"`
}

// xlsxPivotCache directly maps the pivotCache element.
type xlsxPivotCache struct {
	CacheID int    `xml:"cacheId,attr"`
	RID     string `xml:"http://schemas.openxmlformats.org/officeDocument/2006/relationships id,attr,omitempty"`
}

// extLst element provides a convention for extending spreadsheetML in
// predefined locations. The locations shall be denoted with the extLst element,
// and are called extension lists. Extension list locations within the markup
// document are specified in the markup specification and can be used to store
// extensions to the markup specification, whether those are future version
// extensions of the markup specification or are private extensions implemented
// independently of the markup specification. Markup within an extension might
// not be understood by a consumer.
type xlsxExtLst struct {
	Ext string `xml:",innerxml"`
}

// xlsxExt represents a the future feature data storage area. Each extension
// within an extension list shall be contained within an ext element.
// Extensions shall be versioned by namespace, using the uri attribute, and
// shall be allowed to appear in any order within the extension list. Any
// number of extensions shall be allowed within an extension list.
type xlsxExt struct {
	XMLName xml.Name `xml:"ext"`
	URI     string   `xml:"uri,attr"`
	Content string   `xml:",innerxml"`
	xmlns   []xml.Attr
}

// xlsxAlternateContent is a container for a sequence of multiple
// representations of a given piece of content. The program reading the file
// should only process one of these, and the one chosen should be based on
// which conditions match.
type xlsxAlternateContent struct {
	XMLNSMC string `xml:"xmlns:mc,attr,omitempty"`
	Content string `xml:",innerxml"`
}

// xlsxChoice element shall be an element in the Markup Compatibility namespace
// with local name "Choice". Parent elements of Choice elements shall be
// AlternateContent elements.
type xlsxChoice struct {
	XMLName    xml.Name `xml:"mc:Choice"`
	XMLNSA14   string   `xml:"xmlns:a14,attr,omitempty"`
	XMLNSSle15 string   `xml:"xmlns:sle15,attr,omitempty"`
	Requires   string   `xml:"Requires,attr,omitempty"`
	Content    string   `xml:",innerxml"`
}

// xlsxFallback element shall be an element in the Markup Compatibility
// namespace with local name "Fallback". Parent elements of Fallback elements
// shall be AlternateContent elements.
type xlsxFallback struct {
	XMLName xml.Name `xml:"mc:Fallback"`
	Content string   `xml:",innerxml"`
}

// xlsxInnerXML holds parts of XML content currently not unmarshal.
type xlsxInnerXML struct {
	Content string `xml:",innerxml"`
}

// decodeExtLst defines the structure used to parse the extLst element
// of the future feature data storage area.
type decodeExtLst struct {
	XMLName xml.Name   `xml:"extLst"`
	Ext     []*xlsxExt `xml:"ext"`
}

// decodeExt defines the structure used to parse the ext element.
type decodeExt struct {
	URI     string `xml:"uri,attr,omitempty"`
	Content string `xml:",innerxml"`
}

// xlsxDefinedNames directly maps the definedNames element. This element defines
// the collection of defined names for this workbook. Defined names are
// descriptive names to represent cells, ranges of cells, formulas, or constant
// values. Defined names can be used to represent a range on any worksheet.
type xlsxDefinedNames struct {
	DefinedName []xlsxDefinedName `xml:"definedName"`
}

// xlsxDefinedName directly maps the definedName element from the namespace
// http://schemas.openxmlformats.org/spreadsheetml/2006/main This element
// defines a defined name within this workbook. A defined name is descriptive
// text that is used to represent a cell, range of cells, formula, or constant
// value. For a descriptions of the attributes see https://learn.microsoft.com/en-us/dotnet/api/documentformat.openxml.spreadsheet.definedname
type xlsxDefinedName struct {
	Comment           string `xml:"comment,attr,omitempty"`
	CustomMenu        string `xml:"customMenu,attr,omitempty"`
	Description       string `xml:"description,attr,omitempty"`
	Function          bool   `xml:"function,attr,omitempty"`
	FunctionGroupID   int    `xml:"functionGroupId,attr,omitempty"`
	Help              string `xml:"help,attr,omitempty"`
	Hidden            bool   `xml:"hidden,attr,omitempty"`
	LocalSheetID      *int   `xml:"localSheetId,attr"`
	Name              string `xml:"name,attr,omitempty"`
	PublishToServer   bool   `xml:"publishToServer,attr,omitempty"`
	ShortcutKey       string `xml:"shortcutKey,attr,omitempty"`
	StatusBar         string `xml:"statusBar,attr,omitempty"`
	VbProcedure       bool   `xml:"vbProcedure,attr,omitempty"`
	WorkbookParameter bool   `xml:"workbookParameter,attr,omitempty"`
	Xlm               bool   `xml:"xml,attr,omitempty"`
	Data              string `xml:",chardata"`
}

// xlsxCalcPr directly maps the calcPr element. This element defines the
// collection of properties the application uses to record calculation status
// and details. Calculation is the process of computing formulas and then
// displaying the results as values in the cells that contain the formulas.
type xlsxCalcPr struct {
	CalcCompleted         bool    `xml:"calcCompleted,attr,omitempty"`
	CalcID                string  `xml:"calcId,attr,omitempty"`
	CalcMode              string  `xml:"calcMode,attr,omitempty"`
	CalcOnSave            bool    `xml:"calcOnSave,attr,omitempty"`
	ConcurrentCalc        *bool   `xml:"concurrentCalc,attr"`
	ConcurrentManualCount int     `xml:"concurrentManualCount,attr,omitempty"`
	ForceFullCalc         bool    `xml:"forceFullCalc,attr,omitempty"`
	FullCalcOnLoad        bool    `xml:"fullCalcOnLoad,attr,omitempty"`
	FullPrecision         bool    `xml:"fullPrecision,attr,omitempty"`
	Iterate               bool    `xml:"iterate,attr,omitempty"`
	IterateCount          int     `xml:"iterateCount,attr,omitempty"`
	IterateDelta          float64 `xml:"iterateDelta,attr,omitempty"`
	RefMode               string  `xml:"refMode,attr,omitempty"`
}

// xlsxCustomWorkbookViews defines the collection of custom workbook views that
// are defined for this workbook. A customWorkbookView is similar in concept to
// a workbookView in that its attributes contain settings related to the way
// that the workbook should be displayed on a screen by a spreadsheet
// application.
type xlsxCustomWorkbookViews struct {
	CustomWorkbookView []xlsxCustomWorkbookView `xml:"customWorkbookView"`
}

// xlsxCustomWorkbookView directly maps the customWorkbookView element. This
// element specifies a single custom workbook view. A custom workbook view
// consists of a set of display and print settings that you can name and apply
// to a workbook. You can create more than one custom workbook view of the same
// workbook. Custom Workbook Views are not required in order to construct a
// valid SpreadsheetML document, and are not necessary if the document is never
// displayed by a spreadsheet application, or if the spreadsheet application has
// a fixed display for workbooks. However, if a spreadsheet application chooses
// to implement configurable display modes, the customWorkbookView element
// should be used to persist the settings for those display modes.
type xlsxCustomWorkbookView struct {
	ActiveSheetID        *int     `xml:"activeSheetId,attr"`
	AutoUpdate           *bool    `xml:"autoUpdate,attr"`
	ChangesSavedWin      *bool    `xml:"changesSavedWin,attr"`
	GUID                 *string  `xml:"guid,attr"`
	IncludeHiddenRowCol  *bool    `xml:"includeHiddenRowCol,attr"`
	IncludePrintSettings *bool    `xml:"includePrintSettings,attr"`
	Maximized            *bool    `xml:"maximized,attr"`
	MergeInterval        int      `xml:"mergeInterval,attr"`
	Minimized            *bool    `xml:"minimized,attr"`
	Name                 *string  `xml:"name,attr"`
	OnlySync             *bool    `xml:"onlySync,attr"`
	PersonalView         *bool    `xml:"personalView,attr"`
	ShowComments         *string  `xml:"showComments,attr"`
	ShowFormulaBar       *bool    `xml:"showFormulaBar,attr"`
	ShowHorizontalScroll *bool    `xml:"showHorizontalScroll,attr"`
	ShowObjects          *string  `xml:"showObjects,attr"`
	ShowSheetTabs        *bool    `xml:"showSheetTabs,attr"`
	ShowStatusbar        *bool    `xml:"showStatusbar,attr"`
	ShowVerticalScroll   *bool    `xml:"showVerticalScroll,attr"`
	TabRatio             *float64 `xml:"tabRatio,attr"`
	WindowHeight         *int     `xml:"windowHeight,attr"`
	WindowWidth          *int     `xml:"windowWidth,attr"`
	XWindow              *int     `xml:"xWindow,attr"`
	YWindow              *int     `xml:"yWindow,attr"`
}

// DefinedName directly maps the name for a cell or cell range on a
// worksheet.
type DefinedName struct {
	Name     string
	Comment  string
	RefersTo string
	Scope    string
}

// WorkbookPropsOptions directly maps the settings of workbook proprieties.
type WorkbookPropsOptions struct {
	Date1904      *bool
	FilterPrivacy *bool
	CodeName      *string
}

// WorkbookProtectionOptions directly maps the settings of workbook protection.
type WorkbookProtectionOptions struct {
	AlgorithmName string
	Password      string
	LockStructure bool
	LockWindows   bool
}