//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//===========================================================================//

#ifndef CONSOLEDIALOG_H
#define CONSOLEDIALOG_H
#ifdef _WIN32
#pragma once
#endif

#include <Color.h>
#include "icvar.h"
#include "tier1/utlvector.h"
#include "vgui_controls/EditablePanel.h"
#include "vgui_controls/Frame.h"

class ConCommandBase;

namespace vgui {

// Things the user typed in and hit submit/return with
class CHistoryItem {
   public:
    CHistoryItem(void);
    CHistoryItem(const char *text, const char *extra = NULL);
    CHistoryItem(const CHistoryItem &src);
    ~CHistoryItem(void);

    const char *GetText() const;
    const char *GetExtra() const;
    void SetText(const char *text, const char *extra);
    bool HasExtra() { return m_bHasExtra; }

   private:
    char *m_text;
    char *m_extraText;
    bool m_bHasExtra;
};

//-----------------------------------------------------------------------------
// Purpose: Game/dev console dialog
//-----------------------------------------------------------------------------
class CConsolePanel : public vgui::EditablePanel, public IConsoleDisplayFunc {
    DECLARE_CLASS_SIMPLE(CConsolePanel, vgui::EditablePanel);

   public:
    CConsolePanel(Panel *pParent, const char *pName, bool bStatusVersion);
    ~CConsolePanel();

    // Inherited from IConsoleDisplayFunc
    virtual void ColorPrint(const Color &clr, const char *pMessage);
    virtual void Print(const char *pMessage);
    virtual void DPrint(const char *pMessage);
    virtual void GetConsoleText(char *pchText, size_t bufSize) const;

    // clears the console
    void Clear();

    // writes console to a file
    void DumpConsoleTextToFile();

    // Hides the console
    void Hide();

    bool TextEntryHasFocus() const;
    void TextEntryRequestFocus();

   private:
    enum {
        MAX_HISTORY_ITEMS = 100,
    };

    class CompletionItem {
       public:
        CompletionItem(void);
        CompletionItem(const CompletionItem &src);
        CompletionItem &operator=(const CompletionItem &src);
        ~CompletionItem(void);
        const char *GetItemText(void);
        const char *GetCommand(void) const;
        const char *GetName() const;

        bool m_bIsCommand;
        ConCommandBase *m_pCommand;
        CHistoryItem *m_pText;
    };

   protected:
    // methods
    void OnAutoComplete(bool reverse);
    MESSAGE_FUNC_PTR(OnTextChanged, "TextChanged", panel);
    void RebuildCompletionList(const char *partialText);
    void UpdateCompletionListPosition();
    MESSAGE_FUNC(CloseCompletionList, "CloseCompletionList");
    MESSAGE_FUNC_CHARPTR(OnMenuItemSelected, "CompletionCommand", command);
    void ClearCompletionList();
    void AddToHistory(const char *commandText, const char *extraText);

    // vgui overrides
    virtual void PerformLayout();
    virtual void ApplySchemeSettings(vgui::IScheme *pScheme);
    virtual void OnCommand(const char *command);
    virtual void OnKeyCodeTyped(vgui::KeyCode code);
    virtual void OnThink();

    vgui::RichText *m_pHistory;
    vgui::TextEntry *m_pEntry;
    vgui::Button *m_pSubmit;
    vgui::Menu *m_pCompletionList;
    Color m_PrintColor;
    Color m_DPrintColor;

    int m_iNextCompletion;  // the completion that we'll next go to
    char m_szPartialText[256];
    char m_szPreviousPartialText[256];
    bool m_bAutoCompleteMode;  // true if the user is currently tabbing through
                               // completion options
    bool m_bWasBackspacing;
    bool m_bStatusVersion;

    CUtlVector<CompletionItem *> m_CompletionList;
    CUtlVector<CHistoryItem> m_CommandHistory;

    friend class CConsoleDialog;
};

class CConsoleDialog : public vgui::Frame {
    DECLARE_CLASS_SIMPLE(CConsoleDialog, vgui::Frame);

   public:
    CConsoleDialog(vgui::Panel *pParent, const char *pName,
                   bool bStatusVersion);

    virtual void OnScreenSizeChanged(int iOldWide, int iOldTall);
    virtual void Close();
    virtual void PerformLayout();

    // brings dialog to the fore
    MESSAGE_FUNC(Activate, "Activate");
    MESSAGE_FUNC_CHARPTR(OnCommandSubmitted, "CommandSubmitted", command);

    // hides the console
    void Hide();

    // Chain to the page
    void Print(const char *msg);
    void DPrint(const char *msg);
    void ColorPrint(const Color &clr, const char *msg);
    void Clear();
    void DumpConsoleTextToFile();

    virtual void OnKeyCodePressed(vgui::KeyCode code);

   protected:
    CConsolePanel *m_pConsolePanel;
};

}  // end namespace vgui

#endif  // CONSOLEDIALOG_H