// frmPreferences.cpp - frmPreferences form functions
//
// (c) 2016-2017 Xestia Software Development.
//
// This file is part of Xestia Calendar.
//
// Xestia Calendar 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, version 3 of the license.
//
// Xestia Calendar 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 Xestia Calendar. If not, see <http://www.gnu.org/licenses/>

#include "frmPreferences.h"

frmPreferences::frmPreferences( wxWindow* parent )
:
frmPreferencesADT( parent )
{

	wxMemoryInputStream astream(icons_acclocal_png, sizeof(icons_acclocal_png));
	wxMemoryInputStream bstream(icons_accinet_png, sizeof(icons_accinet_png));
	wxMemoryInputStream cstream(icons_accunsupported_png, sizeof(icons_accunsupported_png));

	wxImage icons_acclocal_png(astream, wxBITMAP_TYPE_PNG);
	wxBitmap accNIcon(icons_acclocal_png, -1);
	wxIcon wxIAccNIcon;
	wxIAccNIcon.CopyFromBitmap(accNIcon);

	wxImage icons_accinet_png(bstream, wxBITMAP_TYPE_PNG);
	wxBitmap accIIcon(icons_accinet_png, -1);
	wxIcon wxIAccIIcon;
	wxIAccIIcon.CopyFromBitmap(accIIcon);
	
	wxImage icons_accunsupported_png(cstream, wxBITMAP_TYPE_PNG);
	wxBitmap accUIcon(icons_accunsupported_png, -1);
	wxIcon wxIAccUIcon;
	wxIAccUIcon.CopyFromBitmap(accUIcon);
	
	accountID = accImgList->Add(wxIAccNIcon);
	accountNetID = accImgList->Add(wxIAccIIcon);
	accountUnsupportedID = accImgList->Add(wxIAccUIcon);

	NbtPreferences->RemovePage(1);
	btnAccountAdd->Show(false);
	NbtPreferences->ChangeSelection(0);
	
}

void frmPreferences::LoadPreferences( wxInitDialogEvent& event )
{
	
	// Setup the preferences filename string. Default is the
	// *nix systems one (/home/$USER/.xestiacal/preferences)
    
	prefFilename = GetUserPrefDir();

	preferences = new XCALPreferences(prefFilename);
  
	// Setup the General Tab.
    
	bool saveWindowPos = preferences->GetBoolData(wxT("SaveWindowPosition"));
	bool hideLocalABs = preferences->GetBoolData(wxT("HideLocalCalendars"));
    
	if (saveWindowPos == TRUE){
    
		chkSaveWindowPosition->SetValue(TRUE);
    
	}
    
	if (hideLocalABs == TRUE){
    
		chkHideLocal->SetValue(TRUE);
    
	}
    
	// Setup the Themes tab.

	wxListItem themecol0;
    
	themecol0.SetId(0);
	themecol0.SetWidth(250);
	themecol0.SetText(_("Theme"));
	lstThemes->InsertColumn(0,themecol0);
    
	// Setup the Accounts tab.
    
	ReloadAccounts();
	
}

frmPreferences::~frmPreferences(){
	
	// Destory the preferences window.
	
	delete accImgList;
	accImgList = NULL;
	
}

void frmPreferences::ReloadAccounts(){

	// Reload the accounts in the accounts list.
	
	if (firstLoad == FALSE){
		delete preferences;
		preferences = NULL;
		preferences = new XCALPreferences(prefFilename);
	} else {
		firstLoad = FALSE;
	}

	wxListItem accountscol0, accountscol1, accountscol2, accountscol3;

	lstAccounts->ClearAll();

	accountscol0.SetId(0);
	accountscol0.SetWidth(24);
	lstAccounts->InsertColumn(0,accountscol0);
	lstAccounts->SetImageList(accImgList, wxIMAGE_LIST_SMALL);

	accountscol1.SetId(1);
	accountscol1.SetText(_("Name"));
	accountscol1.SetWidth(224);    
	lstAccounts->InsertColumn(1,accountscol1);   

	accountscol2.SetId(2);
	accountscol2.SetText(_("Type"));
	accountscol2.SetWidth(96);
	lstAccounts->InsertColumn(2,accountscol2);
    
	wxString accType;
    
	for (int i = 0; i < preferences->accounts.GetCount() ; i++){

		wxListItem col0;
		col0.SetId(i);
		
		/* if (preferences->accounts.GetAccountType(i) == wxT("CalDAV")){
	
			col0.SetImage(AccountNetID);
	
		} else  */
		
		if (preferences->accounts.GetAccountType(i) == wxT("Local")){
	
			col0.SetImage(accountID);
	
		} else if (preferences->accounts.GetAccountType(i) == wxT("CalDAV")){
		
			col0.SetImage(accountNetID);
		
		} else {

			col0.SetImage(accountUnsupportedID);
			
		}
	
		long itemindex = lstAccounts->InsertItem( col0 );
	
		lstAccounts->SetItem(itemindex, 1, preferences->accounts.GetAccountName(i));
		lstAccounts->SetItem(itemindex, 2, preferences->accounts.GetAccountType(i));
		lstAccounts->SetItemData(itemindex, i);
	
	}
    
}

void frmPreferences::DisableButtons( wxListEvent& event )
{
	
	// Disable the account buttons.
	
	btnAccountModify->Enable(FALSE);
	btnAccountDelete->Enable(FALSE);
	
}

void frmPreferences::EnableButtons( wxListEvent& event )
{
	
	// Enable the account buttons.
	
	btnAccountModify->Enable(TRUE);
	btnAccountDelete->Enable(TRUE);
	
}

void frmPreferences::AddAccount( wxCommandEvent& event )
{
// TODO: Implement AddABAccount
}

void frmPreferences::ModifyAccount( wxCommandEvent& event )
{

	// Get the settings for the account, setup the form for
	// editing the account and then display the window
	// with the settings.
    
	long lstAccountsIndex = -1;
	wxString accFilename = GetAccountsFile();
	wxString accName;
	wxString accType;
    
	wxFileConfig *cfgFile = new wxFileConfig("", "", accFilename);
	
	// Get the account name.
    
	lstAccountsIndex = lstAccounts->GetNextItem(lstAccountsIndex,
		wxLIST_NEXT_ALL,
		wxLIST_STATE_SELECTED);
	
	// Check that the account type is a supported account type.
	
	accType = preferences->accounts.GetAccountType((int)lstAccountsIndex);
	
	if (accType != "CalDAV" && accType != "caldav" &&
		accType != "Local" && accType != "local"){
	
		wxMessageBox(_("Cannot modify the selected account settings as the account type is unsupported."), _("Unsupported account type"), wxICON_ERROR);
		return;
			
	}
    
	accName = preferences->accounts.GetAccountName((int)lstAccountsIndex);
    
	frmEditAccount *frameEditAccount = new frmEditAccount ( this );
	frameEditAccount->LoadPointers(cfgFile);
	frameEditAccount->LoadSettings(accName);
	frameEditAccount->ShowModal();

	bool dialogResult = frameEditAccount->GetDialogResult();

	delete frameEditAccount;
	frameEditAccount = NULL;
	delete cfgFile;
	cfgFile = NULL;

	if (dialogResult == false){
		return;
	}

	// Reload the account list in the preferences window.

	ReloadAccounts();
	*reloadAccountConfig = TRUE;
	btnAccountModify->Enable(FALSE);
	btnAccountDelete->Enable(FALSE);
	
}

void frmPreferences::DeleteAccount( wxCommandEvent& event )
{
	
	// Display a confirmation dialog to confirm deletion.
    
	long lstAccountsIndex = -1;
	wxMessageDialog dlgdel(this, wxT("Are you sure you want to delete this account?\r\n\r\nAll data that is stored locally will be removed."), wxT("Delete account"), wxYES_NO | wxICON_EXCLAMATION);
    
	if (dlgdel.ShowModal() == wxID_YES){
		
		// Remove the selected item from the accounts list
		// and mark in the accounts list as deleted (Don't write to
		// accounts file).
	
		lstAccountsIndex = lstAccounts->GetNextItem(lstAccountsIndex,
			wxLIST_NEXT_ALL,
                        wxLIST_STATE_SELECTED);
	
		bool continueAcc = TRUE;
		wxString accountDir;
		wxString accountType;
		wxString accountDirFull;
		wxString accountDirDelFull;
		wxString accountName;
		wxString accName;
		long itemIndex = 0;
	
		wxString accFilename = GetAccountsFile();
    
		wxFileConfig *cfgFile = new wxFileConfig("", "", accFilename);
	
		accName = preferences->accounts.GetAccountName((int)lstAccounts->GetItemData(lstAccountsIndex));
	
		// Get the account directory name and account type..
	
		continueAcc = cfgFile->GetFirstGroup(accountName, itemIndex);
	
		while (continueAcc){

			if (accountName == accName){

				cfgFile->SetPath(accountName);
			
				cfgFile->Read("accountdir", &accountDir);
				cfgFile->Read("type", &accountType);
		
				break;

			}
		
			cfgFile->SetPath(wxT("/"));
			continueAcc = cfgFile->GetNextGroup(accountName, itemIndex);
	
		}
	
		accountDirFull.Append(accountDir);
		accountDirFull.Append(wxT("."));
	
		if (accountType == wxT("CalDAV")){
	
			accountDirFull.Append(wxT("CalDAV"));
	
		} else if (accountType == wxT("Local")){
	
			accountDirFull.Append(wxT("Local"));
	
		}
	
		lstAccounts->DeleteItem(lstAccountsIndex);
	
		// Delete the directory that contains the account information.
	
		if (!accountDirFull.IsEmpty()){

#if defined(__WIN32__)

			accountDirDelFull.Append(GetUserDir());
			accountDirDelFull.Append(wxT("\\accounts\\"));
			accountDirDelFull.Append(accountDirFull);

#elif defined(__APPLE__)
            
            accountDirDelFull.Append(wxString::FromUTF8(getenv("HOME")));
            accountDirDelFull.Append(wxT("/Library/Preferences/Xestia/Calendar/accounts/"));
            accountDirDelFull.Append(accountDirFull);
            
#else

			accountDirDelFull.Append(wxString::FromUTF8(getenv("HOME")));
			accountDirDelFull.Append(wxT("/.xestiacal/accounts/"));
			accountDirDelFull.Append(accountDirFull);
	
#endif

			wxRmDir(accountDirDelFull);
	
		}
	
		// Delete the account from the configuration file.
	
		cfgFile->SetPath(wxT("/"));
		cfgFile->DeleteGroup(accountName);
		cfgFile->Flush();
	
		// Set flag for reloading accounts on window closure.
    
		*reloadAccountConfig = TRUE;
    
	}

	btnAccountModify->Enable(FALSE);
	btnAccountDelete->Enable(FALSE);
	
}

void frmPreferences::SavePreferences( wxCommandEvent& event )
{

	// Load up the preferences file.

	wxString setFilename = GetSettingsFile();

	wxFileConfig *cfgFile = new wxFileConfig("", "", setFilename);

	// Update the settings file.
		
	cfgFile->DeleteEntry(wxT("SaveWindowPosition"));
	cfgFile->DeleteEntry(wxT("WindowPositionX"));
	cfgFile->DeleteEntry(wxT("WindowPositionY"));
	cfgFile->DeleteEntry(wxT("WindowPositionHeight"));
	cfgFile->DeleteEntry(wxT("WindowPositionWidth"));
	
	if (chkSaveWindowPosition->GetValue() == TRUE){
	
		cfgFile->Write(wxT("SaveWindowPosition"), wxT("true"));
	
		// Get parent window details.
		
		frmMain *frmMainPtr = (frmMain*)this->GetParent();

		// Get main window position data and save it.
	
		wxRect frmMainPos = frmMainPtr->GetRect();
	
		cfgFile->Write(wxT("WindowPositionX"), frmMainPos.GetX());
		cfgFile->Write(wxT("WindowPositionY"), frmMainPos.GetY());
		cfgFile->Write(wxT("WindowPositionHeight"), frmMainPos.GetHeight());
		cfgFile->Write(wxT("WindowPositionWidth"), frmMainPos.GetWidth());

	} else {
	
		cfgFile->Write(wxT("SaveWindowPosition"), wxT("false"));
	
	}
	
	cfgFile->DeleteEntry(wxT("HideLocalCalendars"));
	
	if (chkHideLocal->GetValue() == TRUE){

		cfgFile->Write(wxT("HideLocalCalendars"), wxT("true"));
		*reloadAccountConfig = TRUE;
	
	} else {
	
		cfgFile->Write(wxT("HideLocalCalendars"), wxT("false"));
		*reloadAccountConfig = TRUE;
	
	}

	delete cfgFile;
	cfgFile = NULL;

	this->Close();
	
}

void frmPreferences::CloseWindow( wxCommandEvent& event )
{
	
	// Close the preferences window.
	
	this->Close();
	
}

void frmPreferences::SetupPointers(bool *reloadAccountInc){

	// Setup the pointers for the preferences form.
	
	reloadAccountConfig = reloadAccountInc;

}