/*

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 "m_clui.h"
#include "clist.h"

extern HANDLE hContactIconChangedEvent;
extern int GetContactCachedStatus(MCONTACT hContact);
extern char *GetContactCachedProtocol(MCONTACT hContact);

int sortByStatus;
static int sortByProto;
static int sortNoOfflineBottom;
struct {
	int status,order;
} statusModeOrder[] = {
	{ID_STATUS_OFFLINE,500},
	{ID_STATUS_ONLINE,0},
	{ID_STATUS_AWAY,200},
	{ID_STATUS_DND,400},
	{ID_STATUS_NA,450},
	{ID_STATUS_OCCUPIED,100},
	{ID_STATUS_FREECHAT,50},
	{ID_STATUS_INVISIBLE,20},
	{ID_STATUS_ONTHEPHONE,150},
	{ID_STATUS_OUTTOLUNCH,425}};

static int GetContactStatus(MCONTACT hContact)
{
	/*

	char *szProto;

	szProto = GetContactProto(hContact,0);
	if (szProto == NULL) return ID_STATUS_OFFLINE;
	return db_get_w(hContact,szProto,"Status",ID_STATUS_OFFLINE);
	*/
	return (GetContactCachedStatus(hContact));
}

void ChangeContactIcon(MCONTACT hContact,int iIcon,int add)
{
	//clui MS_CLUI_CONTACTADDED MS_CLUI_CONTACTSETICON this methods is null
	//CallService(add?MS_CLUI_CONTACTADDED:MS_CLUI_CONTACTSETICON,hContact,iIcon);
	NotifyEventHooks(hContactIconChangedEvent,hContact,iIcon);
}

static int GetStatusModeOrdering(int statusMode)
{
	int i;
	for (i = 0; i< SIZEOF(statusModeOrder); i++)
		if (statusModeOrder[i].status == statusMode) return statusModeOrder[i].order;
	return 1000;
}

void LoadContactTree(void)
{
	int tick = GetTickCount();
	CallService(MS_CLUI_LISTBEGINREBUILD,0,0);
	for (int i=1;; i++) {
		if ((char*)CallService(MS_CLIST_GROUPGETNAME2, i, 0) == NULL)
			break;
		CallService(MS_CLUI_GROUPADDED, i, 0);
	}

	int hideOffline = db_get_b(NULL,"CList","HideOffline",SETTING_HIDEOFFLINE_DEFAULT);

	for (MCONTACT hContact = db_find_first(); hContact; hContact = db_find_next(hContact)) {
		ClcCacheEntry *cacheEntry = GetContactFullCacheEntry(hContact);
		if (cacheEntry == NULL) {
			MessageBoxA(0,"Fail To Get CacheEntry for hContact","!!!!!",0);
			break;
		}
		int status = cacheEntry->status;
		if ((!hideOffline || status != ID_STATUS_OFFLINE) && !cacheEntry->bIsHidden)
			ChangeContactIcon(hContact,ExtIconFromStatusMode(hContact,(char*)cacheEntry->szProto,status),1);
	}
	sortByStatus = db_get_b(NULL,"CList","SortByStatus",SETTING_SORTBYSTATUS_DEFAULT);
	sortByProto = db_get_b(NULL,"CList","SortByProto",SETTING_SORTBYPROTO_DEFAULT);
	sortNoOfflineBottom = db_get_b(NULL,"CList","NoOfflineBottom",SETTING_NOOFFLINEBOTTOM_DEFAULT);

	CallService(MS_CLUI_LISTENDREBUILD,0,0);

	tick = GetTickCount()-tick;

	char buf[255];
	mir_snprintf(buf, SIZEOF(buf), "LoadContactTree %d \r\n", tick);
	OutputDebugStringA(buf);
}

#define SAFESTRING(a) a?a:""

int CompareContacts( const struct ClcContact *contact1, const struct ClcContact *contact2 )
{
	MCONTACT a = contact1->hContact, b = contact2->hContact;
	TCHAR *namea,*nameb;
	int statusa,statusb;
	char *szProto1,*szProto2;
	int rc;

	GetContactInfosForSort(a,&szProto1,&namea,&statusa);
	GetContactInfosForSort(b,&szProto2,&nameb,&statusb);

	if (sortByProto) {

		/* deal with statuses, online contacts have to go above offline */
		if (sortNoOfflineBottom == 0)
			if ((statusa == ID_STATUS_OFFLINE) != (statusb == ID_STATUS_OFFLINE)) {
			return 2*(statusa == ID_STATUS_OFFLINE)-1;
		}
		/* both are online, now check protocols */
		rc = strcmp(SAFESTRING(szProto1),SAFESTRING(szProto2)); /* strcmp() doesn't like NULL so feed in "" as needed */
		if (rc != 0 && (szProto1 != NULL && szProto2 != NULL)) return rc;
		/* protocols are the same, order by display name */
	}

	if (sortByStatus) {
		int ordera,orderb;
		ordera = GetStatusModeOrdering(statusa);
		orderb = GetStatusModeOrdering(statusb);
		if (ordera != orderb) return ordera-orderb;
	}
	else {
		//one is offline: offline goes below online
		if (sortNoOfflineBottom == 0)
			{
			if ((statusa == ID_STATUS_OFFLINE) != (statusb == ID_STATUS_OFFLINE)) {
				return 2*(statusa == ID_STATUS_OFFLINE)-1;
			}
		}
	}

	//otherwise just compare names
	return _tcsicmp(namea,nameb);
}

#undef SAFESTRING

void SortContacts(void)
{
	//avoid doing lots of resorts in quick succession
	sortByStatus = db_get_b(NULL,"CList","SortByStatus",SETTING_SORTBYSTATUS_DEFAULT);
	sortByProto = db_get_b(NULL,"CList","SortByProto",SETTING_SORTBYPROTO_DEFAULT);
}

INT_PTR ContactChangeGroup(WPARAM hContact, LPARAM lParam)
{
	CallService(MS_CLUI_CONTACTDELETED, hContact, 0);
	if ((HANDLE)lParam == NULL)
		db_unset(hContact, "CList", "Group");
	else
		db_set_s(hContact, "CList", "Group", (char*)CallService(MS_CLIST_GROUPGETNAME2, lParam, (LPARAM)(int*)NULL));

	CallService(MS_CLUI_CONTACTADDED, hContact, ExtIconFromStatusMode(hContact, GetContactProto(hContact), GetContactStatus(hContact)));
	return 0;
}