/*
WhenWasIt (birthday reminder) plugin for Miranda IM

Copyright © 2006 Cristian Libotean

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 "services.h"

#define COMMENT_CHAR '#'

HANDLE hsCheckBirthdays;
HANDLE hsShowList;
HANDLE hsAddBirthday;
HANDLE hsRefreshUserDetails;
HANDLE hsImportBirthdays;
HANDLE hsExportBirthdays;

int bShouldCheckBirthdays = 0;
int bBirthdayFound = 0;

int InitServices()
{
	Log("%s", "Entering function " __FUNCTION__);
	
	commonData.foreground = DBGetContactSettingDword(NULL, ModuleName, "Foreground", FOREGROUND_COLOR);
	commonData.background = DBGetContactSettingDword(NULL, ModuleName, "Background", BACKGROUND_COLOR);
	commonData.checkInterval = DBGetContactSettingWord(NULL, ModuleName, "CheckInterval", CHECK_INTERVAL);
	commonData.daysInAdvance = DBGetContactSettingWord(NULL, ModuleName, "DaysInAdvance", DAYS_TO_NOTIFY);
	commonData.daysAfter = DBGetContactSettingWord(NULL, ModuleName, "DaysAfter", DAYS_TO_NOTIFY_AFTER);
	commonData.popupTimeout = DBGetContactSettingWord(NULL, ModuleName, "PopupTimeout", POPUP_TIMEOUT);
	commonData.popupTimeoutToday = DBGetContactSettingWord(NULL, ModuleName, "PopupTimeoutToday", commonData.popupTimeout);
	commonData.bUsePopups = DBGetContactSettingByte(NULL, ModuleName, "UsePopups", TRUE);
	commonData.bUseDialog = DBGetContactSettingByte(NULL, ModuleName, "UseDialog", TRUE);
	commonData.bIgnoreSubcontacts = DBGetContactSettingByte(NULL, ModuleName, "IgnoreSubcontacts", FALSE);
	commonData.cShowAgeMode = DBGetContactSettingByte(NULL, ModuleName, "ShowCurrentAge", FALSE);
	commonData.bNoBirthdaysPopup = DBGetContactSettingByte(NULL, ModuleName, "NoBirthdaysPopup", FALSE);
	commonData.bOpenInBackground = DBGetContactSettingByte(NULL, ModuleName, "OpenInBackground", FALSE);
	commonData.cSoundNearDays = DBGetContactSettingByte(NULL, ModuleName, "SoundNearDays", BIRTHDAY_NEAR_DEFAULT_DAYS);
	commonData.cDefaultModule = DBGetContactSettingByte(NULL, ModuleName, "DefaultModule", 0);
	commonData.lPopupClick = DBGetContactSettingByte(NULL, ModuleName, "PopupLeftClick", 2);
	commonData.rPopupClick = DBGetContactSettingByte(NULL, ModuleName, "PopupRightClick", 1);
	commonData.bOncePerDay = DBGetContactSettingByte(NULL, ModuleName, "OncePerDay", 0);
	commonData.cDlgTimeout = DBGetContactSettingWord(NULL, ModuleName, "DlgTimeout", POPUP_TIMEOUT);
	commonData.notifyFor = DBGetContactSettingByte(NULL, ModuleName, "NotifyFor", 0);	
	
	hsCheckBirthdays = CreateServiceFunction(MS_WWI_CHECK_BIRTHDAYS, CheckBirthdaysService);
	hsShowList = CreateServiceFunction(MS_WWI_LIST_SHOW, ShowListService);
	hsAddBirthday = CreateServiceFunction(MS_WWI_ADD_BIRTHDAY, AddBirthdayService);
	hsRefreshUserDetails = CreateServiceFunction(MS_WWI_REFRESH_USERDETAILS, RefreshUserDetailsService);
	hsImportBirthdays = CreateServiceFunction(MS_WWI_IMPORT_BIRTHDAYS, ImportBirthdaysService);
	hsExportBirthdays = CreateServiceFunction(MS_WWI_EXPORT_BIRTHDAYS, ExportBirthdaysService);
	
	Log("%s", "Leaving function " __FUNCTION__);
	return 0;
}

int DestroyServices()
{
	Log("%s", "Entering function " __FUNCTION__);
	
	DestroyServiceFunction(hsCheckBirthdays);
	DestroyServiceFunction(hsShowList);
	DestroyServiceFunction(hsAddBirthday);
	DestroyServiceFunction(hsRefreshUserDetails);
	DestroyServiceFunction(hsImportBirthdays);
	DestroyServiceFunction(hsExportBirthdays);
	
	Log("%s", "Leaving function " __FUNCTION__);
	return 0;
}

/*
returns -1 if notify is not necesarry
returns daysToBirthday if it should notify
*/
int NotifyContactBirthday(HANDLE hContact, time_t now, int daysInAdvance)
{
	int year, month, day;
	GetContactDOB(hContact, year, month, day);
	int daysToBirthday = DaysToBirthday(now, year, month, day);
	if (daysInAdvance >= daysToBirthday)
		{
			return daysToBirthday;
		}
	return -1;
}

// returns -1 if notify is not necessary
// returns daysAfterBirthday if it should notify
int NotifyMissedContactBirthday(HANDLE hContact, time_t now, int daysAfter)
{
	if (daysAfter > 0)
	{
		int year, month, day;
		GetContactDOB(hContact, year, month, day);
		int daysAfterBirthday = DaysAfterBirthday(now, year, month, day);
		if ((daysAfterBirthday >= 0) && (daysAfter >= daysAfterBirthday))
		{
			return daysAfterBirthday;
		}
	}
	
	return -1;
}

//the timer functions call this service with lParam = 1
//lParam = 0 - force check, lParam - 1 do not force it.
INT_PTR CheckBirthdaysService(WPARAM wParam, LPARAM lParam)
{
	bBirthdayFound = 0; //no birthdays have been found in the given interval
	//int bNoBirthdaysPopup = DBGetContactSettingByte(NULL, ModuleName, "NoBirthdaysPopup", FALSE);
	
	SYSTEMTIME today;
	GetLocalTime(&today);
	
	DWORD lastChecked = DBGetContactSettingDword(NULL, ModuleName, "LastChecked", 0); //get last checked date
	int lcDay = LOBYTE(LOWORD(lastChecked));
	int lcMonth = HIBYTE(LOWORD(lastChecked));
	int lcYear = HIWORD(lastChecked);
	
	int daysAfter = DaysAfterBirthday(Today(), lcYear, lcMonth, lcDay); //get difference between last checked date and today
	int savedDaysAfter = 0;

	savedDaysAfter = commonData.daysAfter; //save value
	
	if ((daysAfter > commonData.daysAfter) && (commonData.daysAfter > 0))//check for passed birthdays
	{
		commonData.daysAfter = daysAfter; //bigger values of the two
	}
	
	if ((lParam) && (commonData.bOncePerDay)) //if force check then we don't take OncePerDay into account
	{
		if ((lcDay == today.wDay) && (lcMonth == today.wMonth) && (lcYear == today.wYear))
		{
			return 0; //already checked today
		}
	}
	
	bShouldCheckBirthdays = 1;
	RefreshAllContactListIcons();
	if ((!bBirthdayFound) && (commonData.bNoBirthdaysPopup))
	{
		PopupNotifyNoBirthdays();
	}
	bShouldCheckBirthdays = 0;
	
	commonData.daysAfter = savedDaysAfter; //restore previous value

	if (lParam) //if not forced - i.e. timer check
	{
		DBWriteContactSettingDword(NULL, ModuleName, "LastChecked", MAKELONG(MAKEWORD(today.wDay, today.wMonth), today.wYear)); //write the value in DB so we don't check again today
	}

	return 0;
}

INT_PTR ShowListService(WPARAM wParam, LPARAM lParam)
{
	if (!hBirthdaysDlg)
		{
			hBirthdaysDlg = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_BIRTHDAYS), NULL, DlgProcBirthdays);
		}
	ShowWindow(hBirthdaysDlg, SW_SHOW);
	return 0;
}

INT_PTR AddBirthdayService(WPARAM wParam, LPARAM lParam)
{
	HWND hWnd = WindowList_Find(hAddBirthdayWndsList, (HANDLE) wParam);
	if (!hWnd)
		{
			hWnd = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_ADD_BIRTHDAY), NULL, DlgProcAddBirthday);
			if (hWnd == NULL)
				{
					TCHAR buffer[1024];
					_stprintf(buffer, _T("Error #%d while trying to create add birthday dialog"), GetLastError());
					MessageBox(0, buffer, _T("Error"), MB_OK);
				}
			WindowList_Add(hAddBirthdayWndsList, hWnd, (HANDLE) wParam);
			SetWindowLongPtr(hWnd, GWLP_USERDATA, wParam);
		}
	return ShowWindow(hWnd, SW_SHOW);
}

void ShowPopupMessage(TCHAR *title, TCHAR *message, HICON icon)
{
	POPUPDATAT pd = {0};
	pd.lchIcon = icon;
	_tcscpy(pd.lptzContactName, title);
	_tcscpy(pd.lptzText, message);
	pd.colorText = commonData.foreground;
	pd.colorBack = commonData.background;
	
	PUAddPopUpT(&pd);
}

DWORD WINAPI RefreshUserDetailsWorkerThread(LPVOID param)
{
	//MessageBox(0, "Inside worker thread", "Info", MB_OK);
	//POPUPDATA pd = {0};
	//pd.lchIcon = hiRefreshUserDetails;
	//strcpy(pd.lpzContactName, Translate("WhenWasIt"));
	//strcpy(pd.lpzText, Translate("Starting to refresh user details"));
	//PUAddPopUp(&pd);
	ShowPopupMessage(TranslateT("WhenWasIt"), TranslateT("Starting to refresh user details"), hiRefreshUserDetails);
	int delay = DBGetContactSettingWord(NULL, ModuleName, "UpdateDelay", REFRESH_DETAILS_DELAY);
	HANDLE hContact = db_find_first();
	int res;
	while (hContact != NULL)
		{
			res = CallContactService(hContact, PSS_GETINFO, 0, 0);
			hContact = db_find_next(hContact);
			if (hContact)
				{
					Sleep(delay); //sleep for a few seconds between requests
				}
		}
	//strcpy(pd.lpzText, Translate("Done refreshing user details"));
	//PUAddPopUp(&pd);
	ShowPopupMessage(TranslateT("WhenWasIt"), TranslateT("Done refreshing user details"), hiRefreshUserDetails);
	//MessageBox(0, "Leaving worker thread", "Info", MB_OK);
	return 0;
}

INT_PTR RefreshUserDetailsService(WPARAM wParam, LPARAM lParam)
{
	DWORD threadID;
	//MessageBox(0, "Before CreateThread()", "Info", MB_OK);
	HANDLE result = CreateThread(NULL, 0, RefreshUserDetailsWorkerThread, NULL, 0, &threadID);
	//MessageBox(0, "After CreateThread()", "Info", MB_OK);
	if (!result)
	{
			TCHAR buffer[1024];
			_stprintf(buffer, _T("Could not create worker thread. Error#%d - threadID %d"), GetLastError(), threadID);
			MessageBox(0, buffer, _T("Error"), MB_OK | MB_ICONERROR);
	}
	if ((result != NULL) && (result != INVALID_HANDLE_VALUE))
	{
		CloseHandle(result);
	}
	
	return 0;
}

INT_PTR ImportBirthdaysService(WPARAM wParam, LPARAM lParam)
{
	TCHAR fileName[1024] = {0};
	OPENFILENAME of = {0};
	of.lStructSize = sizeof(OPENFILENAME);
	//of.hInstance = hInstance;
	TCHAR filter[MAX_PATH];
	mir_sntprintf(filter, SIZEOF(filter), _T("%s (*") _T(BIRTHDAY_EXTENSION) _T(")%c*") _T(BIRTHDAY_EXTENSION) _T("%c"), TranslateT("Birthdays files"), 0, 0); 
	of.lpstrFilter = filter;
	of.lpstrFile = fileName;
	of.nMaxFile = 1024;
	of.lpstrTitle = TranslateT("Please select a file to import birthdays from ...");
	of.Flags = OFN_FILEMUSTEXIST;
	
	if (GetOpenFileName(&of))
		{
			TCHAR buffer[2048];
			mir_sntprintf(buffer, SIZEOF(buffer), TranslateT("Importing birthdays from file: %s"), fileName);
			ShowPopupMessage(TranslateT("WhenWasIt"), buffer, hiImportBirthdays);
			DoImport(fileName);
			ShowPopupMessage(TranslateT("WhenWasIt"), TranslateT("Done importing birthdays"), hiImportBirthdays);
		}
		
	return 0;
}

INT_PTR ExportBirthdaysService(WPARAM wParam, LPARAM lParam)
{
	TCHAR fileName[1024]= {0};
	OPENFILENAME of = {0};
	of.lStructSize = sizeof(OPENFILENAME);
	//of.hInstance = hInstance;
	TCHAR filter[MAX_PATH];
	mir_sntprintf(filter, SIZEOF(filter), _T("%s (*") _T(BIRTHDAY_EXTENSION) _T(")%c*") _T(BIRTHDAY_EXTENSION) _T("%c%s (*.*)%c*.*%c"), TranslateT("Birthdays files"), 0, 0, TranslateT("All Files"), 0, 0); 
	of.lpstrFilter = filter;
	of.lpstrFile = fileName;
	of.nMaxFile = 1024;
	of.lpstrTitle = TranslateT("Please select a file to export birthdays to ...");
	//of.Flags = OFN_ENABLESIZING | OFN_EXPLORER;
	
	if (GetSaveFileName(&of))
		{
			TCHAR buffer[2048];
			TCHAR *fn = _tcsrchr(fileName, _T('\\')) + 1;
			if (!_tcschr(fn, _T('.')))
				{
					_tcscat(fileName, _T(BIRTHDAY_EXTENSION));
				}
			_stprintf(buffer, TranslateT("Exporting birthdays to file: %s"), fileName);
			ShowPopupMessage(TranslateT("WhenWasIt"), buffer, hiExportBirthdays);
			DoExport(fileName);
			ShowPopupMessage(TranslateT("WhenWasIt"), TranslateT("Done exporting birthdays"), hiExportBirthdays);
		}
		
	return 0;
}

int DoImport(TCHAR *fileName)
{
	FILE *fin = _tfopen(fileName, _T("rt"));
	if (!fin)
		{
			MessageBox(0, _T("Could not open file to import birthdays"), _T("Error"), MB_OK | MB_ICONERROR);
			return 1;
		}

	HANDLE hContact;
	int year, month, day;
	TCHAR *szHandle;
	TCHAR *szProto;
	const int maxSize = 4096;
	TCHAR buffer[maxSize];
	int tmp, tmp2;
	int mode = commonData.cDefaultModule; //DBGetContactSettingByte(NULL, ModuleName, "DefaultModule", 0);
	TCHAR *delAccount, *delProto;
	
	while (!feof(fin))
		{
			_fgetts(buffer, maxSize, fin);
			if (buffer[0] == _T(COMMENT_CHAR))
				{
					continue;
				}
				
			delAccount = _tcsstr(buffer, _T(" : "));
			if (delAccount)
				{
					tmp = delAccount[0];
					delAccount[0] = _T('\0');
					delProto = _tcsrchr(buffer, _T('@'));
					if (delProto)
						{
							tmp2 = delProto[0];
							delProto[0] = _T('\0');
							
							szHandle = buffer;
							szProto = delProto + 1;
							hContact = GetContactFromID(szHandle, szProto);
							if (hContact)
								{
									delProto[0] = tmp;
									delAccount[0] = tmp;
									_stscanf(delAccount, _T(" : %02d/%02d/%04d"), &day, &month, &year);
									SaveBirthday(hContact, year, month, day, mode);
								}
								else{
									TCHAR tmp[2048];
									_stprintf(tmp, TranslateT(NOTFOUND_FORMAT), szHandle, szProto);
									ShowPopupMessage(TranslateT("Warning"), tmp, hiImportBirthdays);
								}
						}
				}
		}
	
	fclose(fin);

	return 0;
}

int DoExport(TCHAR *fileName)
{
	FILE *fout = _tfopen(fileName, _T("wt"));
	if (!fout)
		{
			MessageBox(0, _T("Could not open file to export birthdays"), _T("Error"), MB_OK | MB_ICONERROR);
			return 1;
		}
	_ftprintf(fout, _T("%c%s"), _T(COMMENT_CHAR), _T("Please do not edit this file by hand. Use the export function of WhenWasIt plugin.\n"));
	_ftprintf(fout, _T("%c%s"), _T(COMMENT_CHAR), _T("Warning! Please do not mix Unicode and Ansi exported birthday files. You should use the same version (Ansi/Unicode) of WhenWasIt that was used to export the info.\n"));

	_ftprintf(fout, _T("%c%s"), _T(COMMENT_CHAR), _T("This file was exported with a Unicode version of WhenWasIt. Please only use a Unicode version of the plugin to import the birthdays.\n"));
	
	HANDLE hContact = db_find_first();
	int year, month, day;
	TCHAR *szHandle;
	char szProto[256];
	
	while (hContact)
		{
			GetContactDOB(hContact, year, month, day);
			if (IsDOBValid(year, month, day))
				{
					szProto[0] = '\0';
					GetContactProtocol(hContact, szProto, sizeof(szProto));
					szHandle = GetContactID(hContact, szProto);

					if ((szHandle) && (strlen(szProto) > 0))
						{
							_ftprintf(fout, _T(BIRTHDAYS_EXPORT_FORMAT), szHandle, szProto, day, month, year);
						}
					
					if (szHandle) free(szHandle);
				}
		
			hContact = db_find_next(hContact);
		}
	
	fclose(fout);
		
	return 0;
}