/*

Miranda NG: the free IM client for Microsoft* Windows*

Copyright (c) 2012-14 Miranda NG project (http://miranda-ng.org),
Copyright (c) 2000-03 Miranda ICQ/IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.

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.
*/

#include <commonheaders.h>
#include "../cluiframes/cluiframes.h"

extern HIMAGELIST hCListImages;
extern ButtonItem *g_ButtonItems;
extern PLUGININFOEX pluginInfo;

static INT_PTR GetClistVersion(WPARAM wParam, LPARAM lParam)
{
	static char g_szVersionString[256];

	mir_snprintf(g_szVersionString, 256, "%s, %d.%d.%d.%d", pluginInfo.shortName, HIBYTE(HIWORD(pluginInfo.version)), LOBYTE(HIWORD(pluginInfo.version)), HIBYTE(LOWORD(pluginInfo.version)), LOBYTE(LOBYTE(pluginInfo.version)));
	if ( !IsBadWritePtr((LPVOID)lParam, 4))
		*((DWORD *)lParam) = pluginInfo.version;

	return (INT_PTR)g_szVersionString;
}


void FreeProtocolData( void )
{
	//free protocol data
	int nParts = SendMessage(pcli->hwndStatus,SB_GETPARTS,0,0);
	for (int nPanel=0; nPanel < nParts; nPanel++) {
		ProtocolData *PD = (ProtocolData *)SendMessage(pcli->hwndStatus, SB_GETTEXT, nPanel, 0);
		if (PD != NULL && !IsBadCodePtr((FARPROC)PD)) {
			SendMessage(pcli->hwndStatus,SB_SETTEXT,(WPARAM)nPanel|SBT_OWNERDRAW,0);
			if (PD->RealName) mir_free(PD->RealName);
			if (PD) mir_free(PD);
		}
	}
}

int g_maxStatus = ID_STATUS_OFFLINE;
char g_maxProto[100] = "";

void CluiProtocolStatusChanged( int parStatus, const char* szProto )
{
	int protoCount,i;
	PROTOACCOUNT **accs;
	int *partWidths,partCount;
	int borders[3];
	int status;
	int toshow;
	TCHAR *szStatus = NULL;
	char *szMaxProto = NULL;
	int maxOnline = 0, onlineness = 0;
	WORD maxStatus = ID_STATUS_OFFLINE, wStatus;
	DBVARIANT dbv = {0};
	int iIcon = 0;
	HICON hIcon = 0;
	int rdelta = cfg::dat.bCLeft + cfg::dat.bCRight;
	BYTE windowStyle;

	if (pcli->hwndStatus == 0 || cfg::shutDown)
		return;

	ProtoEnumAccounts( &protoCount, &accs );
	if (protoCount == 0)
		return;

	FreeProtocolData();
	g_maxStatus = ID_STATUS_OFFLINE;
	g_maxProto[0] = 0;

	SendMessage(pcli->hwndStatus,SB_GETBORDERS,0,(LPARAM)&borders);

	partWidths=(int*)_alloca(( protoCount+1)*sizeof(int));

	if (cfg::dat.bEqualSections) {
		RECT rc;
		int part;
		//SendMessage(pcli->hwndStatus,WM_SIZE,0,0);        // XXX fix (may break status bar geometry)
		GetClientRect(pcli->hwndStatus,&rc);
		rc.right-=borders[0]*2;
		toshow=0;
		for ( i=0; i < protoCount; i++ )
			if ( pcli->pfnGetProtocolVisibility( accs[i]->szModuleName ))
				toshow++;

		if ( toshow > 0 ) {
			for ( part=0, i=0; i < protoCount; i++ ) {
				if ( !pcli->pfnGetProtocolVisibility( accs[i]->szModuleName ))
					continue;

				partWidths[ part ] = ((rc.right-rc.left-rdelta)/toshow)*(part+1) + cfg::dat.bCLeft;
				if ( part == toshow-1 )
					partWidths[ part ] += cfg::dat.bCRight;
				part++;
		}	}

		partCount=toshow;
	}
	else {
		HDC hdc;
		SIZE textSize;
		BYTE showOpts = cfg::getByte("CLUI","SBarShow",1);
		int x;
		HFONT hofont;
		TCHAR szName[32];
		PROTOACCOUNT *pa;

		hdc=GetDC(NULL);
		hofont = reinterpret_cast<HFONT>(SelectObject(hdc,(HFONT)SendMessage(pcli->hwndStatus,WM_GETFONT,0,0)));

		for ( partCount=0,i=0; i < protoCount; i++ ) {      //count down since built in ones tend to go at the end
			int idx = pcli->pfnGetAccountIndexByPos( i );
			if ( idx == -1 )
				continue;

			pa = accs[idx];
			if ( !pcli->pfnGetProtocolVisibility( pa->szModuleName ))
				continue;

			x=2;
			if (showOpts & 1)
				x += 16;
			if (showOpts & 2) {
				lstrcpyn( szName, pa->tszAccountName, SIZEOF(szName));
				szName[ SIZEOF(szName)-1 ] = 0;
				if (( showOpts & 4 ) && lstrlen(szName) < sizeof(szName)-1 )
					lstrcat( szName, _T(" "));
				GetTextExtentPoint32( hdc, szName, lstrlen(szName), &textSize );
				x += textSize.cx + GetSystemMetrics(SM_CXBORDER) * 4; // The SB panel doesnt allocate enough room
			}
			if (showOpts & 4) {
				TCHAR* modeDescr = pcli->pfnGetStatusModeDescription( CallProtoService(accs[i]->szModuleName,PS_GETSTATUS,0,0 ), 0 );
				GetTextExtentPoint32(hdc, modeDescr, lstrlen(modeDescr), &textSize );
				x += textSize.cx + GetSystemMetrics(SM_CXBORDER) * 4; // The SB panel doesnt allocate enough room
			}
			partWidths[partCount]=(partCount?partWidths[partCount-1]:cfg::dat.bCLeft)+ x + 2;
			partCount++;
		}
		SelectObject(hdc,hofont);
		ReleaseDC(NULL,hdc);
	}
	if (partCount==0) {
		SendMessage(pcli->hwndStatus,SB_SIMPLE,TRUE,0);
		return;
	}
	SendMessage(pcli->hwndStatus,SB_SIMPLE,FALSE,0);

	partWidths[partCount-1]=-1;
	windowStyle = cfg::getByte("CLUI", "WindowStyle", 0);
	SendMessage(pcli->hwndStatus,SB_SETMINHEIGHT, 18 + cfg::dat.bClipBorder + ((windowStyle == SETTING_WINDOWSTYLE_THINBORDER || windowStyle == SETTING_WINDOWSTYLE_NOBORDER) ? 3 : 0), 0);
	SendMessage(pcli->hwndStatus, SB_SETPARTS, partCount, (LPARAM)partWidths);

	for ( partCount=0, i=0; i < protoCount; i++ ) {      //count down since built in ones tend to go at the end
		int idx = pcli->pfnGetAccountIndexByPos( i );
		if ( idx == -1 )
			continue;

		PROTOACCOUNT *pa = accs[idx];
		if ( !pcli->pfnGetProtocolVisibility( pa->szModuleName ))
			continue;

		status = CallProtoService( pa->szModuleName,PS_GETSTATUS,0,0);
		ProtocolData *PD = ( ProtocolData* )mir_alloc(sizeof(ProtocolData));
		PD->RealName = mir_strdup( pa->szModuleName );
		PD->protopos = partCount;
		{
			int flags;
			flags = SBT_OWNERDRAW;
			if ( cfg::getByte("CLUI","SBarBevel", 1)==0 )
				flags |= SBT_NOBORDERS;
			SendMessageA( pcli->hwndStatus, SB_SETTEXTA, partCount|flags,(LPARAM)PD );
		}
		int caps2 = CallProtoService(pa->szModuleName, PS_GETCAPS, PFLAGNUM_2, 0);
		int caps1 = CallProtoService(pa->szModuleName, PS_GETCAPS, PFLAGNUM_1, 0);
		if ((caps1 & PF1_IM) && (caps2 & (PF2_LONGAWAY | PF2_SHORTAWAY))) {
			onlineness = GetStatusOnlineness(status);
			if (onlineness > maxOnline) {
				maxStatus = status;
				maxOnline = onlineness;
				szMaxProto = pa->szModuleName;
			}
		}
		partCount++;
	}
	// update the clui button

	if ( !db_get(NULL, "CList", "PrimaryStatus", &dbv)) {
		if (dbv.type == DBVT_ASCIIZ && lstrlenA(dbv.pszVal) > 1) {
			wStatus = (WORD) CallProtoService(dbv.pszVal, PS_GETSTATUS, 0, 0);
			iIcon = IconFromStatusMode(dbv.pszVal, (int) wStatus, 0, &hIcon);
		}
		mir_free(dbv.pszVal);
	}
	else {
		wStatus = maxStatus;
		iIcon = IconFromStatusMode((wStatus >= ID_STATUS_CONNECTING && wStatus < ID_STATUS_OFFLINE) ? szMaxProto : NULL, (int) wStatus, 0, &hIcon);
		g_maxStatus = (int)wStatus;
		if (szMaxProto)
			strncpy_s(g_maxProto, SIZEOF(g_maxProto), szMaxProto, _TRUNCATE);
	}

	/*
	* this is used globally (actually, by the clist control only) to determine if
	* any protocol is "in connection" state. If true, then the clist discards redraws
	* and uses timer based sort and redraw handling. This can improve performance
	* when connecting multiple protocols significantly.
	*/
	szStatus = pcli->pfnGetStatusModeDescription(wStatus, 0);

	/*
	* set the global status icon and display the global (most online) status mode on the
	* status mode button
	*/
	if (szStatus && pcli->hwndContactList) {
		HWND hwndClistBtn = GetDlgItem(pcli->hwndContactList, IDC_TBGLOBALSTATUS);
		if ( IsWindow(hwndClistBtn)) {
			SendMessage(hwndClistBtn, WM_SETTEXT, 0, (LPARAM) szStatus);
			if ( !hIcon)
				SendMessage(hwndClistBtn, BUTTONSETIMLICON, (WPARAM) hCListImages, (LPARAM) iIcon);
			else
				SendMessage(hwndClistBtn, BM_SETIMAGE, IMAGE_ICON, (LPARAM) hIcon);
			InvalidateRect(hwndClistBtn, NULL, TRUE);
		}

		HWND hwndTtbStatus = ClcGetButtonWindow(IDC_TBTOPSTATUS);
		if ( IsWindow(hwndTtbStatus)) {
			if (g_ButtonItems == NULL) {
				if ( !hIcon)
					SendMessage(hwndTtbStatus, BUTTONSETIMLICON, (WPARAM) hCListImages, (LPARAM) iIcon);
				else
					SendMessage(hwndTtbStatus, BM_SETIMAGE, IMAGE_ICON, (LPARAM) hIcon);
			}
			InvalidateRect(hwndTtbStatus, NULL, TRUE);
		}
	}
}