/*

Chat module interface for Miranda NG

Copyright (c) 2014-21 George Hazan

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

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#pragma once

#ifndef M_CHAT_INT_H__
#define M_CHAT_INT_H__ 1

#pragma warning(disable:4512 4275)

#include <time.h>

#ifndef M_CORE_H__
#include <m_core.h>
#endif

#include <m_string.h>
#include <m_chat.h>
#include <m_gui.h>
#include <m_utils.h>

#define OPTIONS_FONTCOUNT 20
#define STATUSICONCOUNT 6

#define CHAT_MODULE "Chat"
#define CHATFONT_MODULE "ChatFonts"

#define GC_FAKE_EVENT MEVENT(0xBABABEDA)

#define GCW_TABROOM            10
#define GCW_TABPRIVMSG         11

#define GC_EVENT_HIGHLIGHT     0x1000
#define STATE_TALK             0x0001

#define ICON_ACTION            0
#define ICON_ADDSTATUS         1
#define ICON_HIGHLIGHT         2
#define ICON_INFO              3
#define ICON_JOIN              4
#define ICON_KICK              5
#define ICON_MESSAGE           6
#define ICON_MESSAGEOUT        7
#define ICON_NICK              8
#define ICON_NOTICE            9
#define ICON_PART             10
#define ICON_QUIT             11
#define ICON_REMSTATUS        12
#define ICON_TOPIC            13

#define CHATMODE_NORMAL        0
#define CHATMODE_MUTE          1
#define CHATMODE_UNMUTE        2

//structs

struct SESSION_INFO;
struct MODULEINFO;
struct LOGSTREAMDATA;

class CMsgDialog;

struct USERINFO : public MZeroedObject, public MNonCopyable
{
	wchar_t* pszUID;
	wchar_t* pszNick;
	WORD     Status;
	int      iStatusEx;
	WORD     ContactStatus;
};

struct MIR_APP_EXPORT GCModuleInfoBase : public MZeroedObject, public MNonCopyable
{
	GCModuleInfoBase();
	~GCModuleInfoBase();

	char*    pszModule;
	wchar_t* ptszModDispName;
	char*    pszHeader;
	
	bool     bBold, bItalics, bUnderline;
	bool     bColor, bBkgColor;
	bool     bChanMgr, bAckMsg;
	
	int      iMaxText;
};

struct FONTINFO
{
	LOGFONT  lf;
	COLORREF color;
};

struct LOGINFO
{
	wchar_t *ptszText;
	wchar_t *ptszNick;
	wchar_t *ptszUID;
	wchar_t *ptszStatus;
	wchar_t *ptszUserInfo;
	bool     bIsMe;
	bool     bIsHighlighted;
	bool     bSimple;
	time_t   time;
	int      iType;
	LOGINFO *next, *prev;
};

struct STATUSINFO
{
	wchar_t    *pszGroup;
	int         iIconIndex;
	int         iStatus;
	STATUSINFO *next;
};

struct MIR_APP_EXPORT GCSessionInfoBase : public MZeroedObject, public MNonCopyable
{
	GCSessionInfoBase();
	~GCSessionInfoBase();

	MCONTACT    hContact;

	bool        bInitDone;
	bool        bHasToolTip;
	bool        bTrimmed;

	char*       pszModule;
	wchar_t*    ptszID;
	wchar_t*    ptszName;
	wchar_t*    ptszStatusbarText;
	wchar_t*    ptszTopic;

	int         iType;
	int         iEventCount;
	int         iStatusCount;

	WORD        wStatus;
	WORD        wState;
	WORD        wCommandsNum;
	void*       pItemData;
	time_t      LastTime;

	int         currentHovered;

	CMsgDialog *pDlg;
	LOGINFO *pLog, *pLogEnd;
	USERINFO *pMe;
	STATUSINFO *pStatuses;
	MODULEINFO *pMI;
	GCSessionInfoBase *pParent;

	LIST<USERINFO> arKeys;
	OBJLIST<USERINFO> arUsers;

	wchar_t pszLogFileName[MAX_PATH];

	__forceinline USERINFO* getMe() const 
	{	return (pParent != nullptr) ? pParent->pMe : pMe;
	}

	__forceinline OBJLIST<USERINFO>& getUserList()
	{	return (pParent != nullptr) ? pParent->arUsers : arUsers;
	}

	__forceinline LIST<USERINFO>& getKeyList()
	{	return (pParent != nullptr) ? pParent->arKeys : arKeys;
	}

	const char* getSoundName(int iEventType) const;
};

struct GCLogStreamDataBase
{
	char*         buffer;
	int           bufferOffset, bufferLen;
	HWND          hwnd;
	LOGINFO*      lin;
	BOOL          bStripFormat;
	BOOL          bRedraw;
	SESSION_INFO *si;
};

struct GlobalLogSettingsBase
{
	bool     bShowTime;
	bool     bShowTimeIfChanged;
	bool     bLoggingEnabled;
	bool     bFlashWindow, bFlashWindowHighlight;
	bool     bHighlightEnabled;
	bool     bLogIndentEnabled;
	bool     bStripFormat;
	bool     bSoundsFocus;
	bool     bPopupInactiveOnly;
	bool     bTrayIconInactiveOnly;
	bool     bAddColonToAutoComplete;
	bool     bLogLimitNames;
	bool     bTimeStampEventColour;
	bool		bShowContactStatus;
	bool		bContactStatusFirst;
	bool     bDoubleClick4Privat;    // send a private message on dblclick in a nick list
	DWORD    dwIconFlags;
	DWORD    dwTrayIconFlags;
	DWORD    dwPopupFlags;
	int      LogIconSize;
	int      LogTextIndent;
	int      LoggingLimit;
	int      iEventLimit;
	int      iPopupStyle;
	int      iPopupTimeout;
	int      iWidth;
	int      iHeight;
	wchar_t *pszTimeStamp;
	wchar_t *pszTimeStampLog;
	wchar_t *pszIncomingNick;
	wchar_t *pszOutgoingNick;
	wchar_t *pszHighlightWords;
	wchar_t *pszLogDir;
	HFONT    UserListFont;
	HFONT    UserListHeadingsFont;
	HFONT    NameFont;
	COLORREF crLogBackground;
	COLORREF crUserListColor;
	COLORREF crUserListBGColor;
	COLORREF crUserListSelectedBGColor;
	COLORREF crUserListHeadingsColor;
	COLORREF crPUTextColour;
	COLORREF crPUBkgColour;
};

/////////////////////////////////////////////////////////////////////////////////////////

#ifndef SRMM_OWN_STRUCTURES
struct LOGSTREAMDATA : public GCLogStreamDataBase {};
struct SESSION_INFO : public GCSessionInfoBase {};
struct MODULEINFO : public GCModuleInfoBase {};
#endif

/////////////////////////////////////////////////////////////////////////////////////////

#define FONTMODE_USE   1
#define FONTMODE_SKIP  2
#define FONTMODE_ALTER 3

struct CHAT_MANAGER_INITDATA
{
	GlobalLogSettingsBase *pSettings;
	int cbModuleInfo, cbSession;
	wchar_t *szFontGroup;
	int iFontMode;
	HPLUGIN pPlugin;
};

typedef BOOL (*pfnDoTrayIcon)(SESSION_INFO *si, GCEVENT *gce);
typedef BOOL (*pfnDoPopup)(SESSION_INFO *si, GCEVENT *gce);

struct CHAT_MANAGER
{
	CHAT_MANAGER();

	void          (*SetActiveSession)(SESSION_INFO *si);
	SESSION_INFO* (*GetActiveSession)(void);

	SESSION_INFO* (*SM_CreateSession)(void);
	SESSION_INFO* (*SM_FindSession)(const wchar_t *pszID, const char *pszModule);
	HICON         (*SM_GetStatusIcon)(SESSION_INFO *si, USERINFO * ui);
	int           (*SM_GetCount)(const char *pszModule);
	SESSION_INFO* (*SM_FindSessionByIndex)(const char *pszModule, int iItem);
	USERINFO*     (*SM_GetUserFromIndex)(const wchar_t *pszID, const char *pszModule, int index);
	void          (*SM_InvalidateLogDirectories)(void);

	MODULEINFO*   (*MM_CreateModule)(void);
	void          (*MM_FontsChanged)(void);
	void          (*MM_IconsChanged)(void);
	BOOL          (*MM_RemoveAll)(void);

	STATUSINFO*   (*TM_FindStatus)(STATUSINFO *pStatusList, const wchar_t *pszStatus);
	wchar_t*      (*TM_WordToString)(STATUSINFO *pStatusList, WORD Status);
	BOOL          (*TM_RemoveAll)(STATUSINFO** pStatusList);

	int           (*UM_CompareItem)(const USERINFO *u1, const USERINFO *u2);
	USERINFO*     (*UM_AddUser)(SESSION_INFO *si, const wchar_t *pszUID, const wchar_t *pszNick, WORD wStatus);
	USERINFO*     (*UM_FindUser)(SESSION_INFO *si, const wchar_t *pszUID);
	USERINFO*     (*UM_FindUserFromIndex)(SESSION_INFO *si, int index);
	USERINFO*     (*UM_GiveStatus)(SESSION_INFO *si, const wchar_t *pszUID, WORD status);
	USERINFO*     (*UM_SetContactStatus)(SESSION_INFO *si, const wchar_t *pszUID, WORD status);
	USERINFO*     (*UM_TakeStatus)(SESSION_INFO *si, const wchar_t *pszUID, WORD status);
	wchar_t*      (*UM_FindUserAutoComplete)(SESSION_INFO *si, const wchar_t* pszOriginal, const wchar_t* pszCurrent);
	BOOL          (*UM_RemoveUser)(SESSION_INFO *si, const wchar_t *pszUID);

	BOOL          (*LM_RemoveAll)(LOGINFO **ppLogListStart, LOGINFO **ppLogListEnd);

	BOOL          (*SetOffline)(MCONTACT hContact, BOOL bHide);
	BOOL          (*SetAllOffline)(BOOL bHide, const char *pszModule);
	MCONTACT      (*FindRoom)(const char *pszModule, const wchar_t *pszRoom);

	char*         (*Log_CreateRTF)(LOGSTREAMDATA *streamData);
	char*         (*Log_CreateRtfHeader)(void);
	void          (*LoadMsgDlgFont)(int i, LOGFONT *lf, COLORREF *color);
	wchar_t*      (*MakeTimeStamp)(wchar_t *pszStamp, time_t time);

	BOOL          (*DoSoundsFlashPopupTrayStuff)(SESSION_INFO *si, GCEVENT *gce, BOOL bHighlight, int bManyFix);
	BOOL          (*DoTrayIcon)(SESSION_INFO *si, GCEVENT *gce);
	BOOL          (*DoPopup)(SESSION_INFO *si, GCEVENT *gce);
	int           (*ShowPopup)(MCONTACT hContact, SESSION_INFO *si, HICON hIcon, char* pszProtoName, wchar_t* pszRoomName, COLORREF crBkg, const wchar_t* fmt, ...);
	wchar_t*      (*GetChatLogsFilename)(SESSION_INFO *si, time_t tTime);
	char*         (*Log_SetStyle)(int style);

	bool          (*IsHighlighted)(SESSION_INFO *si, GCEVENT *pszText);
	wchar_t*      (*RemoveFormatting)(const wchar_t *pszText);
	void          (*ReloadSettings)(void);

	int           (*DoRtfToTags)(CMStringW &pszText, int iNumColors, COLORREF *pColors);
	void          (*CreateNick)(const SESSION_INFO *si, const LOGINFO *lin, CMStringW &dest);

	int logPixelSY, logPixelSX;
	char *szActiveWndModule;
	wchar_t *szActiveWndID;
	HICON  hStatusIcons[STATUSICONCOUNT];
	HBRUSH hListBkgBrush, hListSelectedBkgBrush;
	HANDLE hevWinPopup, hevPreCreate;
	FONTINFO aFonts[OPTIONS_FONTCOUNT];
	LIST<SESSION_INFO> &arSessions;
	char **pLogIconBmpBits;
	CMOption<bool> bRightClickFilter;

	// public API
	MIR_APP_DLL(HICON) getIcon(int iEventType) const;

	// user-defined custom callbacks
	void (*OnCreateModule)(MODULEINFO*);
	void (*OnDestroyModule)(MODULEINFO*);

	void (*OnCreateSession)(SESSION_INFO*, MODULEINFO*);
	void (*OnOfflineSession)(SESSION_INFO*);
	void (*OnReplaceSession)(SESSION_INFO*);

	void (*ShowRoom)(SESSION_INFO*);
	void (*OnEventBroadcast)(SESSION_INFO *si, GCEVENT *gce);
	
	void (*OnSetTopic)(SESSION_INFO*);

	void (*OnAddUser)(SESSION_INFO*, USERINFO*);
	void (*OnNewUser)(SESSION_INFO*, USERINFO*);
	void (*OnRemoveUser)(SESSION_INFO*, USERINFO*);
	void (*OnChangeNick)(SESSION_INFO*);

	void (*OnAddStatus)(SESSION_INFO*, STATUSINFO*);
	void (*OnSetStatus)(SESSION_INFO*, int);

	void (*OnLoadSettings)(void);
	void (*OnFlashWindow)(SESSION_INFO*, int bInactive);
	void (*OnFlashHighlight)(SESSION_INFO*, int bInactive);
};

extern MIR_APP_EXPORT CHAT_MANAGER g_chatApi;

EXTERN_C MIR_APP_DLL(CHAT_MANAGER*) Chat_CustomizeApi(const CHAT_MANAGER_INITDATA *pData);

/////////////////////////////////////////////////////////////////////////////////////////

// updates options for all windows
EXTERN_C MIR_APP_DLL(void) Chat_UpdateOptions();

// runs ME_GC_EVENT with the parameters passed
EXTERN_C MIR_APP_DLL(BOOL) Chat_DoEventHook(SESSION_INFO *si, int iType, const USERINFO *pUser, const wchar_t* pszText, INT_PTR dwItem);

// creates custom popup menu for a group chat
EXTERN_C MIR_APP_DLL(UINT) Chat_CreateMenu(HWND hwnd, HMENU hMenu, POINT pt, SESSION_INFO *si, const wchar_t *pszUID);

// calculates width or height of a string
EXTERN_C MIR_APP_DLL(int) Chat_GetTextPixelSize(const wchar_t *pszText, HFONT hFont, bool bWidth);

// creates a default description of a group chat event
// returns true if lin->ptszText is already utilized, you need to add it manually then otherwise
EXTERN_C MIR_APP_DLL(bool) Chat_GetDefaultEventDescr(const SESSION_INFO *si, const LOGINFO *lin, CMStringW &res);

// sets mute mode for a group chat
EXTERN_C MIR_APP_DLL(void) Chat_Mute(SESSION_INFO *si, int mode);

#endif // M_CHAT_INT_H__