//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright            : (C) 2008 by Eran Ifrah
// file name            : syntaxhighlightdlg.cpp
//
// -------------------------------------------------------------------------
// A
//              _____           _      _     _ _
//             /  __ \         | |    | |   (_) |
//             | /  \/ ___   __| | ___| |    _| |_ ___
//             | |    / _ \ / _  |/ _ \ |   | | __/ _ )
//             | \__/\ (_) | (_| |  __/ |___| | ||  __/
//              \____/\___/ \__,_|\___\_____/_|\__\___|
//
//                                                  F i l e
//
//    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.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

#include "lexer_page.h"
#include <wx/xrc/xmlres.h>
#include "frame.h"
#include "windowattrmanager.h"
#include <wx/notebook.h>
#include "macros.h"
#include "editor_config.h"
#include <wx/dir.h>
#include "syntaxhighlightdlg.h"
#include "manager.h"

SyntaxHighlightDlg::SyntaxHighlightDlg( wxWindow* parent )
:
SyntaxHighlightBaseDlg( parent )
{
	GetSizer()->Insert(0, CreateSyntaxHighlightPage(), 1, wxALL|wxEXPAND, 5);
	GetSizer()->Layout();
	GetSizer()->Fit(this);
	m_buttonOk->SetFocus();
	WindowAttrManager::Load(this, wxT("SyntaxHighlightDlgAttr"), NULL);
}

void SyntaxHighlightDlg::OnButtonOK( wxCommandEvent& event )
{
	wxUnusedVar(event);
	SaveChanges();
	clMainFrame::Get()->GetMainBook()->ApplySettingsChanges();
	// and close the dialog
	EndModal(wxID_OK);
}

void SyntaxHighlightDlg::OnButtonCancel( wxCommandEvent& event )
{
	wxUnusedVar(event);
	wxString curSelTheme = m_themes->GetStringSelection().IsEmpty() ? wxT("Default") : m_themes->GetStringSelection();
	if (curSelTheme != m_startingTheme) {
		//restore the starting theme
		EditorConfigST::Get()->SaveStringValue(wxT("LexerTheme"), m_startingTheme);
		EditorConfigST::Get()->LoadLexers(false);
	}

	EndModal(wxID_CANCEL);
}

void SyntaxHighlightDlg::OnButtonApply( wxCommandEvent& event )
{
	SaveChanges();
	clMainFrame::Get()->GetMainBook()->ApplySettingsChanges();

	m_startingTheme = m_themes->GetStringSelection().IsEmpty() ? wxT("Default") : m_themes->GetStringSelection();
	wxUnusedVar(event);
}

wxPanel *SyntaxHighlightDlg::CreateSyntaxHighlightPage()
{
	wxPanel *page = new wxPanel( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL );
	wxBoxSizer *sz = new wxBoxSizer(wxVERTICAL);
	page->SetSizer(sz);

//	wxArrayString themesArr;
//
//	wxString path = ManagerST::Get()->GetStarupDirectory();
//	path << wxT("/lexers/");
//
//	wxArrayString files;
//	wxArrayString dirs;
//	wxDir::GetAllFiles(path, &files, wxEmptyString, wxDIR_DIRS | wxDIR_FILES);
//	//filter out all non-directories
//	wxFileName base_path( path );
//	for (size_t i=0; i<files.GetCount(); i++) {
//		wxFileName fn( files.Item(i) );
//		wxString new_path( fn.GetPath(wxPATH_GET_VOLUME|wxPATH_GET_SEPARATOR) );
//		if (new_path != base_path.GetPath(wxPATH_GET_VOLUME|wxPATH_GET_SEPARATOR)) {
//			fn.MakeRelativeTo(base_path.GetPath(wxPATH_GET_VOLUME|wxPATH_GET_SEPARATOR));
//			new_path = fn.GetPath();
//			if (dirs.Index(new_path) == wxNOT_FOUND) {
//				dirs.Add(new_path);
//			}
//		}
//	}
	wxStaticText *txt = new wxStaticText(page, wxID_ANY, wxT("Colouring scheme:"), wxDefaultPosition, wxDefaultSize, 0);
	sz->Add(txt, 0, wxEXPAND|wxALL, 5);

	m_themes = new wxChoice(page, wxID_ANY, wxDefaultPosition, wxDefaultSize, EditorConfigST::Get()->GetLexersThemes(), 0 );
	sz->Add(m_themes, 0, wxEXPAND|wxALL, 5);

	if (m_themes->IsEmpty() == false) {
		int where = m_themes->FindString(EditorConfigST::Get()->GetStringValue( wxT("LexerTheme") ));
		if ( where != wxNOT_FOUND) {
			m_themes->SetSelection( where );
		}
	}

	long style = wxNB_DEFAULT;
	m_lexersBook = new wxNotebook(page, wxID_ANY, wxDefaultPosition, wxDefaultSize, style);
	sz->Add(m_lexersBook, 1, wxEXPAND | wxALL, 5);
	m_lexersBook->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));

#ifdef __WXMAC__
	m_lexersBook->SetWindowVariant(wxWINDOW_VARIANT_SMALL);
#endif
	LoadLexers(m_themes->GetStringSelection().IsEmpty() ? wxT("Default") : m_themes->GetStringSelection());

	m_startingTheme = m_themes->GetStringSelection().IsEmpty() ? wxT("Default") : m_themes->GetStringSelection();
	ConnectChoice(m_themes, SyntaxHighlightDlg::OnThemeChanged);
	return page;
}

void SyntaxHighlightDlg::LoadLexers(const wxString& theme)
{
	Freeze();
	bool selected = true;

	//remove old lexers
	if (m_lexersBook->GetPageCount() > 0) {
		m_lexersBook->DeleteAllPages();
	}

	//update the theme name
	EditorConfigST::Get()->SaveStringValue(wxT("LexerTheme"), theme);

	//load all lexers
	EditorConfigST::Get()->LoadLexers(false);

	std::map<wxString, LexerConfPtr>::const_iterator iter = EditorConfigST::Get()->LexerBegin();
	for (; iter != EditorConfigST::Get()->LexerEnd(); iter++) {
		LexerConfPtr lexer = iter->second;

		wxString lexName = lexer->GetName();
		lexName.Trim().Trim(false);
		if(lexName.IsEmpty())
			continue;

		m_lexersBook->AddPage(CreateLexerPage(m_lexersBook, lexer), lexer->GetName(), selected);
		selected = false;
	}
	Thaw();
}

void SyntaxHighlightDlg::OnThemeChanged(wxCommandEvent& event)
{
	int sel = event.GetSelection();
	wxString themeName = m_themes->GetString((unsigned int)sel);

	//update the configuration with the new lexer's theme
	EditorConfigST::Get()->SaveStringValue(wxT("LexerTheme"), themeName);

	LoadLexers( themeName );
}

wxPanel *SyntaxHighlightDlg::CreateLexerPage(wxWindow *parent, LexerConfPtr lexer)
{
	return new LexerPage(parent, lexer);
}

void SyntaxHighlightDlg::SaveChanges()
{
	int max = m_lexersBook->GetPageCount();
	for (int i=0; i<max; i++) {
		wxWindow *win = m_lexersBook->GetPage((size_t)i);
		LexerPage *page = dynamic_cast<LexerPage*>( win );
		if ( page ) {
			page->SaveSettings();
		}
	}

	// Save all lexers once
	EditorConfigST::Get()->SaveLexers();
}

SyntaxHighlightDlg::~SyntaxHighlightDlg()
{
	WindowAttrManager::Save(this, wxT("SyntaxHighlightDlgAttr"), NULL);
}

void SyntaxHighlightDlg::OnRestoreDefaults(wxCommandEvent& e)
{
	if(wxMessageBox(_("Are you sure you want to load all default syntax highlight settings and lose all your changes?"), wxT("CodeLite"), wxYES_NO|wxCANCEL|wxICON_QUESTION|wxCENTER, this) != wxYES){
		return;
	}

	// restore the default lexers
	EditorConfigST::Get()->LoadLexers(true);
	clMainFrame::Get()->GetMainBook()->ApplySettingsChanges();

	wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, XRCID("syntax_highlight"));
	clMainFrame::Get()->GetEventHandler()->AddPendingEvent(event);
	EndModal(wxID_OK);
}
