#pragma once

#include <QTabWidget>
#include <QHash>

class SciEdit;
class DocumentManager;

class TabWidget : public QTabWidget
{
    Q_OBJECT

public:
    explicit TabWidget(DocumentManager *documentManager, QWidget *parent = nullptr);
    ~TabWidget();

    // 标签页管理
    int newDocument();
    int openDocument(const QString &filePath);
    bool saveCurrentDocument();
    bool saveCurrentDocumentAs();
    void closeCurrentTab();
    bool closeTab(int index);
    void closeAllTabs();

    // 获取当前编辑器和文档信息
    SciEdit *currentEditor() const;
    SciEdit *editorAt(int index) const;
    int currentDocumentId() const;
    int documentIdAt(int index) const;

    // 标签页操作
    void setCurrentTab(int index);
    int findTabByDocumentId(int docId) const;

signals:
    void currentEditorChanged(SciEdit *editor);
    void tabCloseRequested(int index);

private slots:
    void onCurrentChanged(int index);
    void onTabCloseRequested(int index);
    void onDocumentModified(int docId, bool modified);
    void onDocumentTitleChanged(int docId, const QString &title);
    void onEditorTextChanged();

private:
    DocumentManager *m_documentManager;
    QHash<int, int> m_tabToDocumentId;  // tab index -> document id
    QHash<int, int> m_documentIdToTab;  // document id -> tab index
    QHash<int, SciEdit*> m_editors;     // document id -> editor

    SciEdit *createEditor();
    void updateTabTitle(int tabIndex);
    void connectEditorSignals(SciEdit *editor);
    void disconnectEditorSignals(SciEdit *editor);
};