/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file)
 and all other portions of this file are Copyright (c) 2013-2017 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#ifndef TC_HEADER_Main_Forms_SingleChoiceWizardPage
#define TC_HEADER_Main_Forms_SingleChoiceWizardPage

#include "Forms.h"

namespace VeraCrypt
{
	template <class ChoiceType>
	class SingleChoiceWizardPage : public SingleChoiceWizardPageBase
	{
	public:
		SingleChoiceWizardPage (wxPanel* parent, const wxString &groupBoxText = wxEmptyString, bool choiceTextBold = false)
			: SingleChoiceWizardPageBase (parent),
			ChoiceTextBold (choiceTextBold)
		{
			if (!groupBoxText.empty())
			{
				OuterChoicesSizer->Remove (ChoicesSizer);
				ChoicesSizer = new wxStaticBoxSizer (wxVERTICAL, this, groupBoxText);
				OuterChoicesSizer->Add (ChoicesSizer, 0, wxEXPAND, 5);
			}
		}

		void AddChoice (ChoiceType choice, const wxString &choiceText, const wxString &infoText = wxEmptyString, const wchar_t *infoLinkId = nullptr, const wxString &infoLinkText = wxEmptyString)
		{
			assert (RadioButtonMap.find (choice) == RadioButtonMap.end());

			wxRadioButton *radioButton = new wxRadioButton (this, wxID_ANY, choiceText);
			if (RadioButtonMap.empty())
				radioButton->SetValue (true);

			RadioButtonMap[choice] = radioButton;

			if (ChoiceTextBold)
			{
				wxFont buttonFont = radioButton->GetFont();
				buttonFont.SetWeight (wxFONTWEIGHT_BOLD);
				radioButton->SetFont (buttonFont);
			}

			ChoicesSizer->Add (radioButton, 0, wxALL, 5);

			wxBoxSizer *infoSizer = new wxBoxSizer (wxVERTICAL);

			wxStaticText *infoStaticText = new wxStaticText (this, wxID_ANY, infoText, wxDefaultPosition, wxDefaultSize, 0);
			ChoiceInfoTexts.push_back (infoStaticText);

			infoSizer->Add (infoStaticText, 0, wxALL, 5);
			ChoicesSizer->Add (infoSizer, 0, wxEXPAND | wxLEFT, Gui->GetCharWidth (this) * 3);

			if (infoLinkId)
			{
				wxHyperlinkCtrl *hyperlink = Gui->CreateHyperlink (this, infoLinkId, infoLinkText);
				infoSizer->Add (hyperlink, 0, wxALL, 5);
				hyperlink->Connect (wxEVT_COMMAND_HYPERLINK, wxHyperlinkEventHandler (SingleChoiceWizardPage::OnChoiceHyperlinkClick), nullptr, this);
			}

			ChoicesSizer->Add (1, Gui->GetCharHeight (this) * 1, 0, wxEXPAND, 5);
		}

		ChoiceType GetSelection () const
		{
			typedef pair <ChoiceType, wxRadioButton*> MapPair;
			foreach (MapPair p, RadioButtonMap)
			{
				if (p.second->GetValue())
					return p.first;
			}

			throw NoItemSelected (SRC_POS);
		}

		bool IsValid ()
		{
			return true;
		}

		void SetMaxStaticTextWidth (int width)
		{
			InfoStaticText->Wrap (width);

			foreach (wxStaticText *infoText, ChoiceInfoTexts)
				infoText->Wrap (width - Gui->GetCharWidth (this) * 3);
		}

		void SetPageText (const wxString &text)
		{
			InfoStaticText->SetLabel (text);
		}

		void SetSelection (ChoiceType choice)
		{
			RadioButtonMap[choice]->SetValue (true);
		}

	protected:
		void OnChoiceHyperlinkClick (wxHyperlinkEvent &event)
		{
			Gui->OpenHomepageLink (this, event.GetURL());
		}

		bool ChoiceTextBold;
		list <wxStaticText*> ChoiceInfoTexts;
		map <ChoiceType, wxRadioButton*> RadioButtonMap;
	};
}

#endif // TC_HEADER_Main_Forms_SingleChoiceWizardPage