/* This file is part of the KDE libraries
   Copyright (C) 2003 Christoph Cullmann <cullmann@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#ifndef KATE_CONFIG_H
#define KATE_CONFIG_H

#include <ktexteditor_export.h>

#include <ktexteditor/markinterface.h>
#include "ktexteditor/view.h"
#include <KEncodingProber>

#include <QBitRef>
#include <QColor>
#include <QObject>
#include <QVector>
#include <QFontMetricsF>

class KConfigGroup;
namespace KTextEditor { class ViewPrivate; }
namespace KTextEditor { class DocumentPrivate; }
class KateRenderer;

namespace KTextEditor {
    class EditorPrivate;
}

class KConfig;

class QTextCodec;

/**
 * Base Class for the Kate Config Classes
 */
class KateConfig
{
public:
    /**
     * Default Constructor
     */
    KateConfig();

    /**
     * Virtual Destructor
     */
    virtual ~KateConfig();

public:
    /**
     * start some config changes
     * this method is needed to init some kind of transaction
     * for config changes, update will only be done once, at
     * configEnd() call
     */
    void configStart();

    /**
     * end a config change transaction, update the concerned
     * documents/views/renderers
     */
    void configEnd();

protected:
    /**
     * do the real update
     */
    virtual void updateConfig() = 0;

private:
    /**
     * recursion depth
     */
    uint configSessionNumber = 0;

    /**
     * is a config session running
     */
    bool configIsRunning = false;
};

class KTEXTEDITOR_EXPORT KateGlobalConfig : public KateConfig
{
private:
    friend class KTextEditor::EditorPrivate;

    /**
     * only used in KTextEditor::EditorPrivate for the static global fallback !!!
     */
    KateGlobalConfig();

    /**
     * Destructor
     */
    ~KateGlobalConfig() override;

public:
    static KateGlobalConfig *global()
    {
        return s_global;
    }

public:
    /**
     * Read config from object
     */
    void readConfig(const KConfigGroup &config);

    /**
     * Write config to object
     */
    void writeConfig(KConfigGroup &config);

protected:
    void updateConfig() override;

public:
    KEncodingProber::ProberType proberType() const
    {
        return m_proberType;
    }

    void setProberType(KEncodingProber::ProberType proberType);

    QTextCodec *fallbackCodec() const;
    const QString &fallbackEncoding() const;
    bool setFallbackEncoding(const QString &encoding);

private:
    KEncodingProber::ProberType m_proberType;
    QString m_fallbackEncoding;

private:
    static KateGlobalConfig *s_global;
};

class KTEXTEDITOR_EXPORT KateDocumentConfig : public KateConfig
{
private:
    friend class KTextEditor::EditorPrivate;

    KateDocumentConfig();

public:
    explicit KateDocumentConfig(const KConfigGroup &cg);

    /**
     * Construct a DocumentConfig
     */
    explicit KateDocumentConfig(KTextEditor::DocumentPrivate *doc);

    /**
     * Cu DocumentConfig
     */
    ~KateDocumentConfig() override;

    inline static KateDocumentConfig *global()
    {
        return s_global;
    }

    inline bool isGlobal() const
    {
        return (this == global());
    }

public:
    /**
     * Read config from object
     */
    void readConfig(const KConfigGroup &config);

    /**
     * Write config to object
     */
    void writeConfig(KConfigGroup &config);

protected:
    void updateConfig() override;

public:
    int tabWidth() const;
    void setTabWidth(int tabWidth);

    int indentationWidth() const;
    void setIndentationWidth(int indentationWidth);

    const QString &indentationMode() const;
    void setIndentationMode(const QString &identationMode);

    enum TabHandling {
        tabInsertsTab = 0,
        tabIndents = 1,
        tabSmart = 2      //!< indents in leading space, otherwise inserts tab
    };

    uint tabHandling() const;
    void setTabHandling(uint tabHandling);

    bool wordWrap() const;
    void setWordWrap(bool on);

    int wordWrapAt() const;
    void setWordWrapAt(int col);

    bool pageUpDownMovesCursor() const;
    void setPageUpDownMovesCursor(bool on);

    void setKeepExtraSpaces(bool on);
    bool keepExtraSpaces() const;

    void setIndentPastedText(bool on);
    bool indentPastedText() const;

    void setBackspaceIndents(bool on);
    bool backspaceIndents() const;

    void setSmartHome(bool on);
    bool smartHome() const;

    void setShowTabs(bool on);
    bool showTabs() const;

    void setShowSpaces(bool on);
    bool showSpaces() const;

	void setMarkerSize(uint markerSize);
	uint markerSize() const;

    void setReplaceTabsDyn(bool on);
    bool replaceTabsDyn() const;

    /**
     * Remove trailing spaces on save.
     * triState = 0: never remove trailing spaces
     * triState = 1: remove trailing spaces of modified lines (line modification system)
     * triState = 2: remove trailing spaces in entire document
     */
    void setRemoveSpaces(int triState);
    int removeSpaces() const;

    void setNewLineAtEof(bool on);
    bool newLineAtEof() const;

    void setOvr(bool on);
    bool ovr() const;

    void setTabIndents(bool on);
    bool tabIndentsEnabled() const;

    QTextCodec *codec() const;
    const QString &encoding() const;
    bool setEncoding(const QString &encoding);
    bool isSetEncoding() const;

    enum Eol {
        eolUnix = 0,
        eolDos = 1,
        eolMac = 2
    };

    int eol() const;
    QString eolString();

    void setEol(int mode);

    bool bom() const;
    void setBom(bool bom);

    bool allowEolDetection() const;
    void setAllowEolDetection(bool on);

    enum BackupFlags {
        LocalFiles = 1,
        RemoteFiles = 2
    };

    uint backupFlags() const;
    void setBackupFlags(uint flags);

    const QString &backupPrefix() const;
    void setBackupPrefix(const QString &prefix);

    const QString &backupSuffix() const;
    void setBackupSuffix(const QString &suffix);

    const QString &swapDirectory() const;
    void setSwapDirectory(const QString &directory);

    enum SwapFileMode {
        DisableSwapFile = 0,
        EnableSwapFile,
        SwapFilePresetDirectory
    };

    uint swapFileModeRaw() const;
    SwapFileMode swapFileMode() const;
    void setSwapFileMode(uint mode);

    uint swapSyncInterval() const;
    void setSwapSyncInterval(uint interval);

    bool onTheFlySpellCheck() const;
    void setOnTheFlySpellCheck(bool on);

    int lineLengthLimit() const;
    void setLineLengthLimit(int limit);

private:
    QString m_indentationMode;
    int m_indentationWidth = 2;
    int m_tabWidth = 4;
    uint m_tabHandling = tabSmart;
    uint m_configFlags = 0;
    int m_wordWrapAt = 80;
    bool m_wordWrap;
    bool m_pageUpDownMovesCursor;
    bool m_allowEolDetection;
    int m_eol;
    bool m_bom;
    uint m_backupFlags;
    QString m_encoding;
    QString m_backupPrefix;
    QString m_backupSuffix;
    uint m_swapFileMode;
    QString m_swapDirectory;
    uint m_swapSyncInterval;
    bool m_onTheFlySpellCheck;
    int m_lineLengthLimit;

    bool m_tabWidthSet : 1;
    bool m_indentationWidthSet : 1;
    bool m_indentationModeSet : 1;
    bool m_wordWrapSet : 1;
    bool m_wordWrapAtSet : 1;
    bool m_pageUpDownMovesCursorSet : 1;

    bool m_keepExtraSpacesSet : 1;
    bool m_keepExtraSpaces : 1;
    bool m_indentPastedTextSet : 1;
    bool m_indentPastedText : 1;
    bool m_backspaceIndentsSet : 1;
    bool m_backspaceIndents : 1;
    bool m_smartHomeSet : 1;
    bool m_smartHome : 1;
    bool m_showTabsSet : 1;
    bool m_showTabs : 1;
    bool m_showSpacesSet : 1;
    bool m_showSpaces : 1;
    uint m_markerSize = 1;
    bool m_replaceTabsDynSet : 1;
    bool m_replaceTabsDyn : 1;
    bool m_removeSpacesSet : 1;
    uint m_removeSpaces : 2;
    bool m_newLineAtEofSet : 1;
    bool m_newLineAtEof : 1;
    bool m_overwiteModeSet : 1;
    bool m_overwiteMode : 1;
    bool m_tabIndentsSet : 1;
    bool m_tabIndents : 1;

    bool m_encodingSet : 1;
    bool m_eolSet : 1;
    bool m_bomSet : 1;
    bool m_allowEolDetectionSet : 1;
    bool m_backupFlagsSet : 1;
    bool m_backupPrefixSet : 1;
    bool m_backupSuffixSet : 1;
    bool m_swapFileModeSet : 1;
    bool m_swapDirectorySet : 1;
    bool m_swapSyncIntervalSet : 1;
    bool m_onTheFlySpellCheckSet : 1;
    bool m_lineLengthLimitSet : 1;

private:
    static KateDocumentConfig *s_global;
    KTextEditor::DocumentPrivate *m_doc = nullptr;
};

class KTEXTEDITOR_EXPORT KateViewConfig : public KateConfig
{
private:
    friend class KTextEditor::EditorPrivate;

    /**
     * only used in KTextEditor::EditorPrivate for the static global fallback !!!
     */
    KateViewConfig();

public:
    /**
     * Construct a DocumentConfig
     */
    explicit KateViewConfig(KTextEditor::ViewPrivate *view);

    /**
     * Cu DocumentConfig
     */
    ~KateViewConfig() override;

    inline static KateViewConfig *global()
    {
        return s_global;
    }

    inline bool isGlobal() const
    {
        return (this == global());
    }

public:
    /**
     * Read config from object
     */
    void readConfig(const KConfigGroup &config);

    /**
     * Write config to object
     */
    void writeConfig(KConfigGroup &config);

protected:
    void updateConfig() override;

public:
    bool dynWordWrapSet() const
    {
        return m_dynWordWrapSet;
    }
    bool dynWordWrap() const;
    void setDynWordWrap(bool wrap);

    bool dynWrapAtStaticMarker() const;
    void setDynWrapAtStaticMarker(bool on);

    int dynWordWrapIndicators() const;
    void setDynWordWrapIndicators(int mode);

    int dynWordWrapAlignIndent() const;
    void setDynWordWrapAlignIndent(int indent);

    bool lineNumbers() const;
    void setLineNumbers(bool on);

    bool scrollBarMarks() const;
    void setScrollBarMarks(bool on);

    bool scrollBarPreview() const;
    void setScrollBarPreview(bool on);

    bool scrollBarMiniMap() const;
    void setScrollBarMiniMap(bool on);

    bool scrollBarMiniMapAll() const;
    void setScrollBarMiniMapAll(bool on);

    int scrollBarMiniMapWidth() const;
    void setScrollBarMiniMapWidth(int width);

    /* Whether to show scrollbars */
    enum ScrollbarMode {
        AlwaysOn = 0,
        ShowWhenNeeded,
        AlwaysOff
    };

    int showScrollbars() const;
    void setShowScrollbars(int mode);

    bool iconBar() const;
    void setIconBar(bool on);

    bool foldingBar() const;
    void setFoldingBar(bool on);

    bool foldingPreview() const;
    void setFoldingPreview(bool on);

    bool lineModification() const;
    void setLineModification(bool on);

    int bookmarkSort() const;
    void setBookmarkSort(int mode);

    int autoCenterLines() const;
    void setAutoCenterLines(int lines);

    enum SearchFlags {
        IncMatchCase = 1 << 0,
        IncHighlightAll = 1 << 1,
        IncFromCursor = 1 << 2,
        PowerMatchCase = 1 << 3,
        PowerHighlightAll = 1 << 4,
        PowerFromCursor = 1 << 5,
        // PowerSelectionOnly = 1 << 6, Better not save to file // Sebastian
        PowerModePlainText = 1 << 7,
        PowerModeWholeWords = 1 << 8,
        PowerModeEscapeSequences = 1 << 9,
        PowerModeRegularExpression = 1 << 10,
        PowerUsePlaceholders = 1 << 11
    };

    long searchFlags() const;
    void setSearchFlags(long flags);

    int maxHistorySize() const;

    uint defaultMarkType() const;
    void setDefaultMarkType(uint type);

    bool allowMarkMenu() const;
    void setAllowMarkMenu(bool allow);

    bool persistentSelection() const;
    void setPersistentSelection(bool on);

    KTextEditor::View::InputMode inputMode() const;
    void setInputMode(KTextEditor::View::InputMode mode);
    void setInputModeRaw(int rawmode);

    bool viInputModeStealKeys() const;
    void setViInputModeStealKeys(bool on);

    bool viRelativeLineNumbers() const;
    void setViRelativeLineNumbers(bool on);

    // Do we still need the enum and related functions below?
    enum TextToSearch {
        Nowhere = 0,
        SelectionOnly = 1,
        SelectionWord = 2,
        WordOnly = 3,
        WordSelection = 4
    };

    bool automaticCompletionInvocation() const;
    void setAutomaticCompletionInvocation(bool on);

    bool wordCompletion() const;
    void setWordCompletion(bool on);

    bool keywordCompletion () const;
    void setKeywordCompletion (bool on);

    int wordCompletionMinimalWordLength() const;
    void setWordCompletionMinimalWordLength(int length);

    bool wordCompletionRemoveTail() const;
    void setWordCompletionRemoveTail(bool on);

    bool smartCopyCut() const;
    void setSmartCopyCut(bool on);

    bool mousePasteAtCursorPosition() const;
    void setMousePasteAtCursorPosition(bool on);

    bool scrollPastEnd() const;
    void setScrollPastEnd(bool on);

    bool foldFirstLine() const;
    void setFoldFirstLine(bool on);

    bool showWordCount() const;
    void setShowWordCount(bool on);

    bool showLineCount() const;
    void setShowLineCount(bool on);

    bool autoBrackets() const;
    void setAutoBrackets(bool on);

    bool backspaceRemoveComposed() const;
    void setBackspaceRemoveComposed(bool on);

private:
    bool m_dynWordWrap;
    bool m_dynWrapAtStaticMarker;
    int m_dynWordWrapIndicators;
    int m_dynWordWrapAlignIndent;
    bool m_lineNumbers;
    bool m_scrollBarMarks;
    bool m_scrollBarPreview;
    bool m_scrollBarMiniMap;
    bool m_scrollBarMiniMapAll;
    int  m_scrollBarMiniMapWidth;
    int  m_showScrollbars;
    bool m_iconBar;
    bool m_foldingBar;
    bool m_foldingPreview;
    bool m_lineModification;
    int m_bookmarkSort;
    int m_autoCenterLines;
    long m_searchFlags;
    int m_maxHistorySize;
    uint m_defaultMarkType;
    bool m_persistentSelection;
    KTextEditor::View::InputMode m_inputMode;
    bool m_viInputModeStealKeys;
    bool m_viRelativeLineNumbers;
    bool m_automaticCompletionInvocation;
    bool m_wordCompletion;
    bool m_keywordCompletion;
    int m_wordCompletionMinimalWordLength;
    bool m_wordCompletionRemoveTail;
    bool m_smartCopyCut;
    bool m_mousePasteAtCursorPosition = false;
    bool m_scrollPastEnd;
    bool m_foldFirstLine;
    bool m_showWordCount = false;
    bool m_showLineCount = false;
    bool m_autoBrackets;
    bool m_backspaceRemoveComposed;

    bool m_dynWordWrapSet : 1;
    bool m_dynWrapAtStaticMarkerSet : 1;
    bool m_dynWordWrapIndicatorsSet : 1;
    bool m_dynWordWrapAlignIndentSet : 1;
    bool m_lineNumbersSet : 1;
    bool m_scrollBarMarksSet : 1;
    bool m_scrollBarPreviewSet : 1;
    bool m_scrollBarMiniMapSet : 1;
    bool m_scrollBarMiniMapAllSet : 1;
    bool m_scrollBarMiniMapWidthSet : 1;
    bool m_showScrollbarsSet : 1;
    bool m_iconBarSet : 1;
    bool m_foldingBarSet : 1;
    bool m_foldingPreviewSet : 1;
    bool m_lineModificationSet : 1;
    bool m_bookmarkSortSet : 1;
    bool m_autoCenterLinesSet : 1;
    bool m_searchFlagsSet : 1;
    bool m_defaultMarkTypeSet : 1;
    bool m_persistentSelectionSet : 1;
    bool m_inputModeSet : 1;
    bool m_viInputModeStealKeysSet : 1;
    bool m_viRelativeLineNumbersSet : 1;
    bool m_automaticCompletionInvocationSet : 1;
    bool m_wordCompletionSet : 1;
    bool m_keywordCompletionSet : 1;
    bool m_wordCompletionMinimalWordLengthSet : 1;
    bool m_smartCopyCutSet : 1;
    bool m_mousePasteAtCursorPositionSet : 1;
    bool m_scrollPastEndSet : 1;
    bool m_allowMarkMenu : 1;
    bool m_wordCompletionRemoveTailSet : 1;
    bool m_foldFirstLineSet : 1;
    bool m_showWordCountSet : 1;
    bool m_showLineCountSet : 1;
    bool m_autoBracketsSet : 1;
    bool m_backspaceRemoveComposedSet : 1;

private:
    static KateViewConfig *s_global;
    KTextEditor::ViewPrivate *m_view = nullptr;
};

class KTEXTEDITOR_EXPORT KateRendererConfig : public KateConfig
{
private:
    friend class KTextEditor::EditorPrivate;

    /**
     * only used in KTextEditor::EditorPrivate for the static global fallback !!!
     */
    KateRendererConfig();

public:
    /**
     * Construct a DocumentConfig
     */
    explicit KateRendererConfig(KateRenderer *renderer);

    /**
     * Cu DocumentConfig
     */
    ~KateRendererConfig() override;

    inline static KateRendererConfig *global()
    {
        return s_global;
    }

    inline bool isGlobal() const
    {
        return (this == global());
    }

public:
    /**
     * Read config from object
     */
    void readConfig(const KConfigGroup &config);

    /**
     * Write config to object
     */
    void writeConfig(KConfigGroup &config);

protected:
    void updateConfig() override;

public:
    const QString &schema() const;
    void setSchema(const QString &schema);

    /**
     * Reload the schema from the schema manager.
     * For the global instance, have all other instances reload.
     * Used by the schema config page to apply changes.
     */
    void reloadSchema();

    const QFont &font() const;
    const QFontMetricsF &fontMetrics() const;
    void setFont(const QFont &font);

    bool wordWrapMarker() const;
    void setWordWrapMarker(bool on);

    const QColor &backgroundColor() const;
    void setBackgroundColor(const QColor &col);

    const QColor &selectionColor() const;
    void setSelectionColor(const QColor &col);

    const QColor &highlightedLineColor() const;
    void setHighlightedLineColor(const QColor &col);

    const QColor &lineMarkerColor(KTextEditor::MarkInterface::MarkTypes type = KTextEditor::MarkInterface::markType01) const; // markType01 == Bookmark
    void setLineMarkerColor(const QColor &col, KTextEditor::MarkInterface::MarkTypes type = KTextEditor::MarkInterface::markType01);

    const QColor &highlightedBracketColor() const;
    void setHighlightedBracketColor(const QColor &col);

    const QColor &wordWrapMarkerColor() const;
    void setWordWrapMarkerColor(const QColor &col);

    const QColor &tabMarkerColor() const;
    void setTabMarkerColor(const QColor &col);

    const QColor &indentationLineColor() const;
    void setIndentationLineColor(const QColor &col);

    const QColor &iconBarColor() const;
    void setIconBarColor(const QColor &col);

    const QColor &foldingColor() const;
    void setFoldingColor(const QColor &col);

    // the line number color is used for the line numbers on the left bar
    const QColor &lineNumberColor() const;
    void setLineNumberColor(const QColor &col);
    const QColor &currentLineNumberColor() const;
    void setCurrentLineNumberColor(const QColor &col);

    // the color of the separator between line numbers and icon bar
    const QColor &separatorColor() const;
    void setSeparatorColor(const QColor &col);

    const QColor &spellingMistakeLineColor() const;
    void setSpellingMistakeLineColor(const QColor &col);

    bool showIndentationLines() const;
    void setShowIndentationLines(bool on);

    bool showWholeBracketExpression() const;
    void setShowWholeBracketExpression(bool on);

    bool animateBracketMatching() const;
    void setAnimateBracketMatching(bool on);

    const QColor &templateBackgroundColor() const;
    const QColor &templateEditablePlaceholderColor() const;
    const QColor &templateFocusedEditablePlaceholderColor() const;
    const QColor &templateNotEditablePlaceholderColor() const;

    const QColor &modifiedLineColor() const;
    void setModifiedLineColor(const QColor &col);

    const QColor &savedLineColor() const;
    void setSavedLineColor(const QColor &col);

    const QColor &searchHighlightColor() const;
    void setSearchHighlightColor(const QColor &col);

    const QColor &replaceHighlightColor() const;
    void setReplaceHighlightColor(const QColor &col);

private:
    /**
     * Read the schema properties from the config file.
     */
    void setSchemaInternal(const QString &schema);

    /**
     * Set the font but drop style name before that.
     * Otherwise e.g. styles like bold/italic/... will not work
     */
    void setFontWithDroppedStyleName(const QFont &font);

    QString m_schema;
    QFont m_font;
    QFontMetricsF m_fontMetrics;
    QColor m_backgroundColor;
    QColor m_selectionColor;
    QColor m_highlightedLineColor;
    QColor m_highlightedBracketColor;
    QColor m_wordWrapMarkerColor;
    QColor m_tabMarkerColor;
    QColor m_indentationLineColor;
    QColor m_iconBarColor;
    QColor m_foldingColor;
    QColor m_lineNumberColor;
    QColor m_currentLineNumberColor;
    QColor m_separatorColor;
    QColor m_spellingMistakeLineColor;
    QVector<QColor> m_lineMarkerColor;

    QColor m_templateBackgroundColor;
    QColor m_templateEditablePlaceholderColor;
    QColor m_templateFocusedEditablePlaceholderColor;
    QColor m_templateNotEditablePlaceholderColor;

    QColor m_modifiedLineColor;
    QColor m_savedLineColor;
    QColor m_searchHighlightColor;
    QColor m_replaceHighlightColor;

    bool m_wordWrapMarker = false;
    bool m_showIndentationLines = false;
    bool m_showWholeBracketExpression = false;
    bool m_animateBracketMatching = false;

    bool m_schemaSet : 1;
    bool m_fontSet : 1;
    bool m_wordWrapMarkerSet : 1;
    bool m_showIndentationLinesSet : 1;
    bool m_showWholeBracketExpressionSet : 1;
    bool m_backgroundColorSet : 1;
    bool m_selectionColorSet : 1;
    bool m_highlightedLineColorSet : 1;
    bool m_highlightedBracketColorSet : 1;
    bool m_wordWrapMarkerColorSet : 1;
    bool m_tabMarkerColorSet : 1;
    bool m_indentationLineColorSet : 1;
    bool m_iconBarColorSet : 1;
    bool m_foldingColorSet : 1;
    bool m_lineNumberColorSet : 1;
    bool m_currentLineNumberColorSet : 1;
    bool m_separatorColorSet : 1;
    bool m_spellingMistakeLineColorSet : 1;
    bool m_templateColorsSet : 1;
    bool m_modifiedLineColorSet : 1;
    bool m_savedLineColorSet : 1;
    bool m_searchHighlightColorSet : 1;
    bool m_replaceHighlightColorSet : 1;
    QBitArray m_lineMarkerColorSet;

private:
    static KateRendererConfig *s_global;
    KateRenderer *m_renderer = nullptr;
};

#endif

