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**
** Copyright (C) 2019 The Qt Company Ltd.
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** This file is part of the tools applications of the Qt Toolkit.
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
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/*
  tree.h
*/

#ifndef TREE_H
#define TREE_H

#include "node.h"

#include <QtCore/qstack.h>

QT_BEGIN_NAMESPACE

class QStringList;
class QDocDatabase;

struct TargetRec
{
public:
    enum TargetType { Unknown, Target, Keyword, Contents, Class, Function, Page, Subtitle };

    TargetRec(const QString &name, const QString &title, TargetRec::TargetType type, Node *node,
              int priority)
        : node_(node), ref_(name), title_(title), priority_(priority), type_(type)
    {
        // Discard the dedicated ref for keywords - they always
        // link to the top of the QDoc comment they appear in
        if (type == Keyword)
            ref_.clear();
    }

    bool isEmpty() const { return ref_.isEmpty(); }
    Node::Genus genus() { return (node_ ? node_->genus() : Node::DontCare); }

    Node *node_;
    QString ref_;
    QString title_;
    int priority_;
    TargetType type_;
};

struct TargetLoc
{
public:
    TargetLoc(const Node *loc, const QString &t, const QString &fileName, const QString &text,
              bool broken)
        : loc_(loc), target_(t), fileName_(fileName), text_(text), broken_(broken)
    {
    }
    const Node *loc_;
    QString target_;
    QString fileName_;
    QString text_;
    bool broken_;
};

typedef QMultiMap<QString, TargetRec *> TargetMap;
typedef QMultiMap<QString, PageNode *> PageNodeMultiMap;
typedef QMap<QString, QmlTypeNode *> QmlTypeMap;
typedef QMultiMap<QString, const ExampleNode *> ExampleNodeMap;
typedef QVector<TargetLoc *> TargetList;
typedef QMap<QString, TargetList *> TargetListMap;

class Tree
{
    friend class QDocForest;
    friend class QDocDatabase;

private: // Note the constructor and destructor are private.
    typedef QMap<PropertyNode::FunctionRole, QString> RoleMap;
    typedef QMap<PropertyNode *, RoleMap> PropertyMap;

    Tree(const QString &camelCaseModuleName, QDocDatabase *qdb);
    ~Tree();

public: // Of necessity, a few public functions remain.
    const QString &camelCaseModuleName() const { return camelCaseModuleName_; }
    const QString &physicalModuleName() const { return physicalModuleName_; }
    const QString &indexFileName() const { return indexFileName_; }
    long incrementLinkCount() { return --linkCount_; }
    void clearLinkCount() { linkCount_ = 0; }
    long linkCount() const { return linkCount_; }
    const QString &indexTitle() const { return indexTitle_; }
    void setIndexTitle(const QString &t) { indexTitle_ = t; }
    NodeList &proxies() { return proxies_; }
    void appendProxy(ProxyNode *t) { proxies_.append(t); }
    void addToDontDocumentMap(QString &arg);
    void markDontDocumentNodes();

private: // The rest of the class is private.
    Aggregate *findAggregate(const QString &name);
    Node *findNodeForInclude(const QStringList &path) const;
    ClassNode *findClassNode(const QStringList &path, const Node *start = nullptr) const;
    NamespaceNode *findNamespaceNode(const QStringList &path) const;
    const FunctionNode *findFunctionNode(const QStringList &path, const Parameters &parameters,
                                         const Node *relative, Node::Genus genus) const;
    Node *findNodeRecursive(const QStringList &path, int pathIndex, const Node *start,
                            bool (Node::*)() const) const;
    const Node *findNodeForTarget(const QStringList &path, const QString &target, const Node *node,
                                  int flags, Node::Genus genus, QString &ref) const;
    const Node *matchPathAndTarget(const QStringList &path, int idx, const QString &target,
                                   const Node *node, int flags, Node::Genus genus,
                                   QString &ref) const;

    const Node *findNode(const QStringList &path, const Node *relative, int flags,
                         Node::Genus genus) const;

    QmlTypeNode *findQmlTypeNode(const QStringList &path);

    Node *findNodeByNameAndType(const QStringList &path, bool (Node::*isMatch)() const) const;
    Aggregate *findRelatesNode(const QStringList &path);
    QString getRef(const QString &target, const Node *node) const;
    void insertTarget(const QString &name, const QString &title, TargetRec::TargetType type,
                      Node *node, int priority);
    void resolveTargets(Aggregate *root);
    const Node *findUnambiguousTarget(const QString &target, Node::Genus genus, QString &ref) const;
    const PageNode *findPageNodeByTitle(const QString &title) const;

    void addPropertyFunction(PropertyNode *property, const QString &funcName,
                             PropertyNode::FunctionRole funcRole);
    void resolveBaseClasses(Aggregate *n);
    void resolveBaseClassesHelper(int pass, ClassNode *cn);
    void resolvePropertyOverriddenFromPtrs(Aggregate *n);
    void resolveProperties();
    void resolveCppToQmlLinks();
    void resolveUsingClauses(Aggregate *parent = nullptr);
    void removePrivateAndInternalBases(NamespaceNode *rootNode);
    NamespaceNode *root() { return &root_; }
    const NamespaceNode *root() const { return &root_; }

    ClassList allBaseClasses(const ClassNode *classe) const;
    QString refForAtom(const Atom *atom);

    CNMap *getCollectionMap(Node::NodeType type);
    const CNMap &groups() const { return groups_; }
    const CNMap &modules() const { return modules_; }
    const CNMap &qmlModules() const { return qmlModules_; }
    const CNMap &jsModules() const { return jsModules_; }

    CollectionNode *getCollection(const QString &name, Node::NodeType type);
    CollectionNode *findCollection(const QString &name, Node::NodeType type);

    CollectionNode *findGroup(const QString &name) { return findCollection(name, Node::Group); }
    CollectionNode *findModule(const QString &name) { return findCollection(name, Node::Module); }
    CollectionNode *findQmlModule(const QString &name)
    {
        return findCollection(name, Node::QmlModule);
    }
    CollectionNode *findJsModule(const QString &name)
    {
        return findCollection(name, Node::JsModule);
    }

    CollectionNode *addGroup(const QString &name) { return findGroup(name); }
    CollectionNode *addModule(const QString &name) { return findModule(name); }
    CollectionNode *addQmlModule(const QString &name) { return findQmlModule(name); }
    CollectionNode *addJsModule(const QString &name) { return findJsModule(name); }

    CollectionNode *addToGroup(const QString &name, Node *node);
    CollectionNode *addToModule(const QString &name, Node *node);
    CollectionNode *addToQmlModule(const QString &name, Node *node);
    CollectionNode *addToJsModule(const QString &name, Node *node);

    QmlTypeNode *lookupQmlType(const QString &name) const { return qmlTypeMap_.value(name); }
    Aggregate *lookupQmlBasicType(const QString &name) const { return qmlTypeMap_.value(name); }
    void insertQmlType(const QString &key, QmlTypeNode *n);
    void addExampleNode(ExampleNode *n) { exampleNodeMap_.insert(n->title(), n); }
    ExampleNodeMap &exampleNodeMap() { return exampleNodeMap_; }
    void setIndexFileName(const QString &t) { indexFileName_ = t; }

    bool treeHasBeenAnalyzed() const { return treeHasBeenAnalyzed_; }
    bool docsHaveBeenGenerated() const { return docsHaveBeenGenerated_; }
    void setTreeHasBeenAnalyzed() { treeHasBeenAnalyzed_ = true; }
    void setdocsHaveBeenGenerated() { docsHaveBeenGenerated_ = true; }
    QString getNewLinkTarget(const Node *locNode, const Node *t, const QString &fileName,
                             QString &text, bool broken);
    TargetList *getTargetList(const QString &module);
    QStringList getTargetListKeys() { return targetListMap_->keys(); }
    FunctionNode *findFunctionNodeForTag(const QString &tag, Aggregate *parent = nullptr);
    FunctionNode *findMacroNode(const QString &t, const Aggregate *parent = nullptr);

private:
    bool treeHasBeenAnalyzed_;
    bool docsHaveBeenGenerated_;
    long linkCount_;
    QString camelCaseModuleName_;
    QString physicalModuleName_;
    QString indexFileName_;
    QString indexTitle_;
    QDocDatabase *qdb_;
    NamespaceNode root_;
    PropertyMap unresolvedPropertyMap;
    PageNodeMultiMap pageNodesByTitle_;
    TargetMap nodesByTargetRef_;
    TargetMap nodesByTargetTitle_;
    CNMap groups_;
    CNMap modules_;
    CNMap qmlModules_;
    CNMap jsModules_;
    QmlTypeMap qmlTypeMap_;
    ExampleNodeMap exampleNodeMap_;
    TargetListMap *targetListMap_;
    NodeList proxies_;
    NodeMap dontDocumentMap_;
};

QT_END_NAMESPACE

#endif