/*
    SPDX-FileCopyrightText: 2020 The Qt Company Ltd.
    SPDX-FileCopyrightText: 2020 Lucie Gerard <lucie.gerard@qt.io>

    SPDX-License-Identifier: LGPL-2.0-or-later
*/

#include "qt6-header-fixes.h"
#include "FixItUtils.h"
#include "Utils.h"

#include <clang/AST/Decl.h>
#include <clang/AST/DeclCXX.h>
#include <clang/AST/Expr.h>
#include <clang/AST/ExprCXX.h>
#include <clang/AST/Stmt.h>
#include <clang/AST/Type.h>
#include <clang/Basic/Diagnostic.h>
#include <clang/Basic/LLVM.h>
#include <clang/Basic/SourceLocation.h>
#include <clang/Lex/Lexer.h>
#include <llvm/ADT/ArrayRef.h>
#include <llvm/ADT/StringRef.h>
#include <llvm/Support/Casting.h>

using namespace clang;

static bool newOldHeaderFileMatch(const std::string &FileNameOld, std::string &FileNameNew)
{
    static std::unordered_map<std::string, std::string> map = {
        {"ActiveQt/QAxAggregated", "QtAxServer/QAxAggregated"},
        {"ActiveQt/QAxBase", "QtAxContainer/QAxBase"},
        {"ActiveQt/QAxBindable", "QtAxServer/QAxBindable"},
        {"ActiveQt/QAxFactory", "QtAxServer/QAxFactory"},
        {"ActiveQt/QAxObject", "QtAxContainer/QAxObject"},
        {"ActiveQt/QAxScript", "QtAxContainer/QAxScript"},
        {"ActiveQt/QAxScriptEngine", "QtAxContainer/QAxScriptEngine"},
        {"ActiveQt/QAxScriptManager", "QtAxContainer/QAxScriptManager"},
        {"ActiveQt/QAxSelect", "QtAxContainer/QAxSelect"},
        {"ActiveQt/QAxWidget", "QtAxContainer/QAxWidget"},
        {"ActiveQt/qaxaggregated.h", "QtAxServer/qaxaggregated.h"},
        {"ActiveQt/qaxbase.h", "QtAxContainer/qaxbase.h"},
        {"ActiveQt/qaxbindable.h", "QtAxServer/qaxbindable.h"},
        {"ActiveQt/qaxfactory.h", "QtAxServer/qaxfactory.h"},
        {"ActiveQt/qaxobject.h", "QtAxContainer/qaxobject.h"},
        {"ActiveQt/qaxscript.h", "QtAxContainer/qaxscript.h"},
        {"ActiveQt/qaxselect.h", "QtAxContainer/qaxselect.h"},
        {"ActiveQt/qaxwidget.h", "QtAxContainer/qaxwidget.h"},
        {"Qt3DAnimation/QAbstractAnimation", "QtCore/QAbstractAnimation"},
        {"Qt3DAnimation/QAnimationGroup", "QtCore/QAnimationGroup"},
        {"Qt3DAnimation/qabstractanimation.h", "QtCore/qabstractanimation.h"},
        {"Qt3DAnimation/qanimationgroup.h", "QtCore/qanimationgroup.h"},
        {"Qt3DInput/QAction", "QtGui/QAction"},
        {"Qt3DInput/QKeyEvent", "QtGui/QKeyEvent"},
        {"Qt3DInput/QMouseEvent", "QtGui/QMouseEvent"},
        {"Qt3DInput/QWheelEvent", "QtGui/QWheelEvent"},
        {"Qt3DInput/qaction.h", "QtGui/qaction.h"},
        {"Qt3DRender/FunctorType", "Qt3DCore/FunctorType"},
        {"Qt3DRender/QAbstractFunctor", "Qt3DCore/QAbstractFunctor"},
        {"Qt3DRender/QAttribute", "Qt3DCore/QAttribute"},
        {"Qt3DRender/QBuffer", "QtCore/QBuffer"},
        {"Qt3DRender/QBufferPtr", "Qt3DCore/QBufferPtr"},
        {"Qt3DRender/QGeometry", "Qt3DCore/QGeometry"},
        {"Qt3DRender/QGeometryFactoryPtr", "Qt3DCore/QGeometryFactoryPtr"},
        {"Qt3DRender/QProximityFilter", "QtSensors/QProximityFilter"},
        {"Qt3DRender/qabstractfunctor.h", "Qt3DCore/qabstractfunctor.h"},
        {"Qt3DRender/qattribute.h", "Qt3DCore/qattribute.h"},
        {"Qt3DRender/qbuffer.h", "QtCore/qbuffer.h"},
        {"Qt3DRender/qgeometry.h", "Qt3DCore/qgeometry.h"},
        {"QtCore/QAbstractState", "QtStateMachine/QAbstractState"},
        {"QtCore/QAbstractTransition", "QtStateMachine/QAbstractTransition"},
        {"QtCore/QEventTransition", "QtStateMachine/QEventTransition"},
        {"QtCore/QFinalState", "QtStateMachine/QFinalState"},
        {"QtCore/QHistoryState", "QtStateMachine/QHistoryState"},
        {"QtCore/QSignalTransition", "QtStateMachine/QSignalTransition"},
        {"QtCore/QState", "QtStateMachine/QState"},
        {"QtCore/QStateMachine", "QtStateMachine/QStateMachine"},
        {"QtCore/qabstractstate.h", "QtStateMachine/qabstractstate.h"},
        {"QtCore/qabstracttransition.h", "QtStateMachine/qabstracttransition.h"},
        {"QtCore/qeventtransition.h", "QtStateMachine/qeventtransition.h"},
        {"QtCore/qfinalstate.h", "QtStateMachine/qfinalstate.h"},
        {"QtCore/qhistorystate.h", "QtStateMachine/qhistorystate.h"},
        {"QtCore/qsignaltransition.h", "QtStateMachine/qsignaltransition.h"},
        {"QtCore/qstate.h", "QtStateMachine/qstate.h"},
        {"QtCore/qstatemachine.h", "QtStateMachine/qstatemachine.h"},
        {"QtDesigner/QDesignerCustomWidgetCollectionInterface", "QtUiPlugin/QDesignerCustomWidgetCollectionInterface"},
        {"QtDesigner/QDesignerCustomWidgetInterface", "QtUiPlugin/QDesignerCustomWidgetInterface"},
        {"QtDesigner/QDesignerExportWidget", "QtUiPlugin/QDesignerExportWidget"},
        {"QtDesigner/customwidget.h", "QtUiPlugin/customwidget.h"},
        {"QtDesigner/qdesignerexportwidget.h", "QtUiPlugin/qdesignerexportwidget.h"},
        {"QtGui/QOpenGLBuffer", "QtOpenGL/QOpenGLBuffer"},
        {"QtGui/QOpenGLDebugLogger", "QtOpenGL/QOpenGLDebugLogger"},
        {"QtGui/QOpenGLDebugMessage", "QtOpenGL/QOpenGLDebugMessage"},
        {"QtGui/QOpenGLFramebufferObject", "QtOpenGL/QOpenGLFramebufferObject"},
        {"QtGui/QOpenGLFramebufferObjectFormat", "QtOpenGL/QOpenGLFramebufferObjectFormat"},
        {"QtGui/QOpenGLFunctions_1_0", "QtOpenGL/QOpenGLFunctions_1_0"},
        {"QtGui/QOpenGLFunctions_1_1", "QtOpenGL/QOpenGLFunctions_1_1"},
        {"QtGui/QOpenGLFunctions_1_2", "QtOpenGL/QOpenGLFunctions_1_2"},
        {"QtGui/QOpenGLFunctions_1_3", "QtOpenGL/QOpenGLFunctions_1_3"},
        {"QtGui/QOpenGLFunctions_1_4", "QtOpenGL/QOpenGLFunctions_1_4"},
        {"QtGui/QOpenGLFunctions_1_5", "QtOpenGL/QOpenGLFunctions_1_5"},
        {"QtGui/QOpenGLFunctions_2_0", "QtOpenGL/QOpenGLFunctions_2_0"},
        {"QtGui/QOpenGLFunctions_2_1", "QtOpenGL/QOpenGLFunctions_2_1"},
        {"QtGui/QOpenGLFunctions_3_0", "QtOpenGL/QOpenGLFunctions_3_0"},
        {"QtGui/QOpenGLFunctions_3_1", "QtOpenGL/QOpenGLFunctions_3_1"},
        {"QtGui/QOpenGLFunctions_3_2_Compatibility", "QtOpenGL/QOpenGLFunctions_3_2_Compatibility"},
        {"QtGui/QOpenGLFunctions_3_2_Core", "QtOpenGL/QOpenGLFunctions_3_2_Core"},
        {"QtGui/QOpenGLFunctions_3_3_Compatibility", "QtOpenGL/QOpenGLFunctions_3_3_Compatibility"},
        {"QtGui/QOpenGLFunctions_3_3_Core", "QtOpenGL/QOpenGLFunctions_3_3_Core"},
        {"QtGui/QOpenGLFunctions_4_0_Compatibility", "QtOpenGL/QOpenGLFunctions_4_0_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_0_Core", "QtOpenGL/QOpenGLFunctions_4_0_Core"},
        {"QtGui/QOpenGLFunctions_4_1_Compatibility", "QtOpenGL/QOpenGLFunctions_4_1_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_1_Core", "QtOpenGL/QOpenGLFunctions_4_1_Core"},
        {"QtGui/QOpenGLFunctions_4_2_Compatibility", "QtOpenGL/QOpenGLFunctions_4_2_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_2_Core", "QtOpenGL/QOpenGLFunctions_4_2_Core"},
        {"QtGui/QOpenGLFunctions_4_3_Compatibility", "QtOpenGL/QOpenGLFunctions_4_3_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_3_Core", "QtOpenGL/QOpenGLFunctions_4_3_Core"},
        {"QtGui/QOpenGLFunctions_4_4_Compatibility", "QtOpenGL/QOpenGLFunctions_4_4_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_4_Core", "QtOpenGL/QOpenGLFunctions_4_4_Core"},
        {"QtGui/QOpenGLFunctions_4_5_Compatibility", "QtOpenGL/QOpenGLFunctions_4_5_Compatibility"},
        {"QtGui/QOpenGLFunctions_4_5_Core", "QtOpenGL/QOpenGLFunctions_4_5_Core"},
        {"QtGui/QOpenGLFunctions_ES2", "QtOpenGL/QOpenGLFunctions_ES2"},
        {"QtGui/QOpenGLPaintDevice", "QtOpenGL/QOpenGLPaintDevice"},
        {"QtGui/QOpenGLPixelTransferOptions", "QtOpenGL/QOpenGLPixelTransferOptions"},
        {"QtGui/QOpenGLShader", "QtOpenGL/QOpenGLShader"},
        {"QtGui/QOpenGLShaderProgram", "QtOpenGL/QOpenGLShaderProgram"},
        {"QtGui/QOpenGLTexture", "QtOpenGL/QOpenGLTexture"},
        {"QtGui/QOpenGLTextureBlitter", "QtOpenGL/QOpenGLTextureBlitter"},
        {"QtGui/QOpenGLTimeMonitor", "QtOpenGL/QOpenGLTimeMonitor"},
        {"QtGui/QOpenGLTimerQuery", "QtOpenGL/QOpenGLTimerQuery"},
        {"QtGui/QOpenGLVersionFunctions", "QtOpenGL/QOpenGLVersionFunctions"},
        {"QtGui/QOpenGLVersionProfile", "QtOpenGL/QOpenGLVersionProfile"},
        {"QtGui/QOpenGLVertexArrayObject", "QtOpenGL/QOpenGLVertexArrayObject"},
        {"QtGui/QOpenGLWindow", "QtOpenGL/QOpenGLWindow"},
        {"QtGui/qopenglbuffer.h", "QtOpenGL/qopenglbuffer.h"},
        {"QtGui/qopengldebug.h", "QtOpenGL/qopengldebug.h"},
        {"QtGui/qopenglframebufferobject.h", "QtOpenGL/qopenglframebufferobject.h"},
        {"QtGui/qopenglfunctions_1_0.h", "QtOpenGL/qopenglfunctions_1_0.h"},
        {"QtGui/qopenglfunctions_1_1.h", "QtOpenGL/qopenglfunctions_1_1.h"},
        {"QtGui/qopenglfunctions_1_2.h", "QtOpenGL/qopenglfunctions_1_2.h"},
        {"QtGui/qopenglfunctions_1_3.h", "QtOpenGL/qopenglfunctions_1_3.h"},
        {"QtGui/qopenglfunctions_1_4.h", "QtOpenGL/qopenglfunctions_1_4.h"},
        {"QtGui/qopenglfunctions_1_5.h", "QtOpenGL/qopenglfunctions_1_5.h"},
        {"QtGui/qopenglfunctions_2_0.h", "QtOpenGL/qopenglfunctions_2_0.h"},
        {"QtGui/qopenglfunctions_2_1.h", "QtOpenGL/qopenglfunctions_2_1.h"},
        {"QtGui/qopenglfunctions_3_0.h", "QtOpenGL/qopenglfunctions_3_0.h"},
        {"QtGui/qopenglfunctions_3_1.h", "QtOpenGL/qopenglfunctions_3_1.h"},
        {"QtGui/qopenglfunctions_3_2_compatibility.h", "QtOpenGL/qopenglfunctions_3_2_compatibility.h"},
        {"QtGui/qopenglfunctions_3_2_core.h", "QtOpenGL/qopenglfunctions_3_2_core.h"},
        {"QtGui/qopenglfunctions_3_3_compatibility.h", "QtOpenGL/qopenglfunctions_3_3_compatibility.h"},
        {"QtGui/qopenglfunctions_3_3_core.h", "QtOpenGL/qopenglfunctions_3_3_core.h"},
        {"QtGui/qopenglfunctions_4_0_compatibility.h", "QtOpenGL/qopenglfunctions_4_0_compatibility.h"},
        {"QtGui/qopenglfunctions_4_0_core.h", "QtOpenGL/qopenglfunctions_4_0_core.h"},
        {"QtGui/qopenglfunctions_4_1_compatibility.h", "QtOpenGL/qopenglfunctions_4_1_compatibility.h"},
        {"QtGui/qopenglfunctions_4_1_core.h", "QtOpenGL/qopenglfunctions_4_1_core.h"},
        {"QtGui/qopenglfunctions_4_2_compatibility.h", "QtOpenGL/qopenglfunctions_4_2_compatibility.h"},
        {"QtGui/qopenglfunctions_4_2_core.h", "QtOpenGL/qopenglfunctions_4_2_core.h"},
        {"QtGui/qopenglfunctions_4_3_compatibility.h", "QtOpenGL/qopenglfunctions_4_3_compatibility.h"},
        {"QtGui/qopenglfunctions_4_3_core.h", "QtOpenGL/qopenglfunctions_4_3_core.h"},
        {"QtGui/qopenglfunctions_4_4_compatibility.h", "QtOpenGL/qopenglfunctions_4_4_compatibility.h"},
        {"QtGui/qopenglfunctions_4_4_core.h", "QtOpenGL/qopenglfunctions_4_4_core.h"},
        {"QtGui/qopenglfunctions_4_5_compatibility.h", "QtOpenGL/qopenglfunctions_4_5_compatibility.h"},
        {"QtGui/qopenglfunctions_4_5_core.h", "QtOpenGL/qopenglfunctions_4_5_core.h"},
        {"QtGui/qopenglfunctions_es2.h", "QtOpenGL/qopenglfunctions_es2.h"},
        {"QtGui/qopenglpaintdevice.h", "QtOpenGL/qopenglpaintdevice.h"},
        {"QtGui/qopenglpixeltransferoptions.h", "QtOpenGL/qopenglpixeltransferoptions.h"},
        {"QtGui/qopenglshaderprogram.h", "QtOpenGL/qopenglshaderprogram.h"},
        {"QtGui/qopengltexture.h", "QtOpenGL/qopengltexture.h"},
        {"QtGui/qopengltextureblitter.h", "QtOpenGL/qopengltextureblitter.h"},
        {"QtGui/qopengltimerquery.h", "QtOpenGL/qopengltimerquery.h"},
        {"QtGui/qopenglversionfunctions.h", "QtOpenGL/qopenglversionfunctions.h"},
        {"QtGui/qopenglvertexarrayobject.h", "QtOpenGL/qopenglvertexarrayobject.h"},
        {"QtGui/qopenglwindow.h", "QtOpenGL/qopenglwindow.h"},
        {"QtSvg/QGraphicsSvgItem", "QtSvgWidgets/QGraphicsSvgItem"},
        {"QtSvg/QSvgWidget", "QtSvgWidgets/QSvgWidget"},
        {"QtSvg/qgraphicssvgitem.h", "QtSvgWidgets/qgraphicssvgitem.h"},
        {"QtSvg/qsvgwidget.h", "QtSvgWidgets/qsvgwidget.h"},
        {"QtWidgets/QAction", "QtGui/QAction"},
        {"QtWidgets/QActionGroup", "QtGui/QActionGroup"},
        {"QtWidgets/QFileSystemModel", "QtGui/QFileSystemModel"},
        {"QtWidgets/QKeyEventTransition", "QtStateMachine/QKeyEventTransition"},
        {"QtWidgets/QMouseEventTransition", "QtStateMachine/QMouseEventTransition"},
        {"QtWidgets/QOpenGLWidget", "QtOpenGLWidgets/QOpenGLWidget"},
        {"QtWidgets/QShortcut", "QtGui/QShortcut"},
        {"QtWidgets/QUndoCommand", "QtGui/QUndoCommand"},
        {"QtWidgets/QUndoGroup", "QtGui/QUndoGroup"},
        {"QtWidgets/QUndoStack", "QtGui/QUndoStack"},
        {"QtWidgets/qaction.h", "QtGui/qaction.h"},
        {"QtWidgets/qactiongroup.h", "QtGui/qactiongroup.h"},
        {"QtWidgets/qfilesystemmodel.h", "QtGui/qfilesystemmodel.h"},
        {"QtWidgets/qkeyeventtransition.h", "QtStateMachine/qkeyeventtransition.h"},
        {"QtWidgets/qmouseeventtransition.h", "QtStateMachine/qmouseeventtransition.h"},
        {"QtWidgets/qopenglwidget.h", "QtOpenGLWidgets/qopenglwidget.h"},
        {"QtWidgets/qshortcut.h", "QtGui/qshortcut.h"},
        {"QtWidgets/qundogroup.h", "QtGui/qundogroup.h"},
        {"QtWidgets/qundostack.h", "QtGui/qundostack.h"}};

    auto it = map.find(FileNameOld);
    if (it == map.cend()) {
        return false;
    }

    FileNameNew = it->second;

    return true;
}

Qt6HeaderFixes::Qt6HeaderFixes(const std::string &name, Options options)
    : CheckBase(name, options)
{
    m_filesToIgnore = {"qeventtransition.h",
                       "qfinalstate.h",
                       "qhistorystate.h",
                       "qsignaltransition.h",
                       "qstate.h",
                       "qstatemachine.h",
                       "qopenglcontext.h",
                       "qopenglfunctions_1_0.h",
                       "qopenglfunctions_1_1.h",
                       "qopenglfunctions_1_2.h",
                       "qopenglfunctions_1_3.h",
                       "qopenglfunctions_1_4.h",
                       "qopenglfunctions_1_5.h",
                       "qopenglfunctions_2_0.h",
                       "qopenglfunctions_2_1.h",
                       "qopenglfunctions_3_0.h",
                       "qopenglfunctions_3_1.h",
                       "qopenglfunctions_3_2_compatibility.h",
                       "qopenglfunctions_3_2_core.h",
                       "qopenglfunctions_3_3_compatibility.h",
                       "qopenglfunctions_3_3_core.h",
                       "qopenglfunctions_4_0_compatibility.h",
                       "qopenglfunctions_4_0_core.h",
                       "qopenglfunctions_4_1_compatibility.h",
                       "qopenglfunctions_4_1_core.h",
                       "qopenglfunctions_4_2_compatibility.h",
                       "qopenglfunctions_4_2_core.h",
                       "qopenglfunctions_4_3_compatibility.h",
                       "qopenglfunctions_4_3_core.h",
                       "qopenglfunctions_4_4_compatibility.h",
                       "qopenglfunctions_4_4_core.h",
                       "qopenglfunctions_4_5_compatibility.h",
                       "qopenglfunctions_4_5_core.h"};
}

void Qt6HeaderFixes::VisitInclusionDirective(clang::SourceLocation HashLoc,
                                             const clang::Token & /*IncludeTok*/,
                                             clang::StringRef FileName,
                                             bool IsAngled,
                                             clang::CharSourceRange FilenameRange,
                                             clazy::OptionalFileEntryRef /*File*/,
                                             clang::StringRef /*SearchPath*/,
                                             clang::StringRef /*RelativePath*/,
                                             const clang::Module * /*SuggestedModule*/,
                                             bool /*ModuleImported*/,
                                             clang::SrcMgr::CharacteristicKind /*FileType*/)
{
    if (shouldIgnoreFile(HashLoc)) {
        return;
    }

    std::string newFileName;
    if (!newOldHeaderFileMatch(FileName.str(), newFileName)) {
        return;
    }

    std::string replacement;
    if (IsAngled) {
        replacement = "<";
        replacement += newFileName;
        replacement += ">";
    } else {
        replacement = "\"";
        replacement += newFileName;
        replacement += "\"";
    }

    std::vector<FixItHint> fixits;
    fixits.push_back(FixItHint::CreateReplacement(FilenameRange.getAsRange(), replacement));
    std::string message = "including ";
    message += FileName;
    emitWarning(FilenameRange.getAsRange().getBegin(), message, fixits);
    return;
}
