// XCCalendarManipulator.cpp - Xestia Calendar XCCalendarManipulator widget class.
//
// (c) 2016 Xestia Software Development.
//
// This file is part of Xestia Calendar.
//
// Xestia Address Book 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 Address Book 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 "XCCalendarManipulator.h"

BEGIN_EVENT_TABLE(XCCalendarManipulator, wxPanel)
END_EVENT_TABLE()

using namespace std;

XCCalendarManipulator::XCCalendarManipulator(wxWindow* parent, const wxString& title, const wxPoint& pos, const wxSize& size)
        : wxPanel(parent, wxID_ANY, pos, size, wxTAB_TRAVERSAL, title){
	
	szrMain = new wxBoxSizer( wxVERTICAL );
	pnlMain = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxSize(500, 50), wxTAB_TRAVERSAL);
	pnlMain->SetBackgroundColour(wxColour(40,40,40));
	this->SetSizer(szrMain);
	szrMain->Add(pnlMain, 0, wxEXPAND, 0);
		
	// Setup the navigation section.
		
	szrNavigation = new wxBoxSizer( wxHORIZONTAL );
	pnlMain->SetSizer(szrNavigation);
		
	// Add next month and previous month buttons.
		
	PreviousButton = new wxButton(pnlMain, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(32,32), 0|wxNO_BORDER);
	NextButton = new wxButton(pnlMain, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(32,32), 0|wxNO_BORDER);
	
	wxMemoryInputStream PreviousIcon(icons_previous_png, sizeof(icons_previous_png));
	wxMemoryInputStream NextIcon(icons_next_png, sizeof(icons_next_png));
		
	wxImage icons_previous_png(PreviousIcon, wxBITMAP_TYPE_PNG);
	PreviousIconBitmap = wxBitmap(icons_previous_png, -1);

	wxImage icons_next_png(NextIcon, wxBITMAP_TYPE_PNG);
	NextIconBitmap = wxBitmap(icons_next_png, -1);
		
	PreviousButton->SetBitmap(PreviousIconBitmap);
	NextButton->SetBitmap(NextIconBitmap);
		
	// Setup the static text.
		
	DateButton = new wxButton(pnlMain, wxID_ANY, _("November 2016"), wxDefaultPosition, wxDefaultSize, 0|wxNO_BORDER);
		
	wxFont Test;
	
	Test.SetWeight(wxFONTWEIGHT_BOLD);
	Test.SetPointSize(18);
		
	DateButton->SetFont(Test);
	DateButton->SetForegroundColour(wxColour(255,255,255));
	
	// Setup the event controls.

	DateButton->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(XCCalendarManipulator::DateTextClick), NULL, this);
	NextButton->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(XCCalendarManipulator::NextMonth), NULL, this);
	PreviousButton->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(XCCalendarManipulator::PreviousMonth), NULL, this);
	
	Connect(wxID_ANY, XCCALENDARMANIPULATOR_CHANGEGRID, wxCommandEventHandler(XCCalendarManipulator::ChangeGrid));
	
	// Setup the manipulator control.

	szrNavigation->Add(PreviousButton, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5);
	szrNavigation->Add( 0, 0, 1, wxEXPAND, 5 );
	szrNavigation->Add(DateButton, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
	szrNavigation->Add( 0, 0, 1, wxEXPAND, 5 );
	szrNavigation->Add(NextButton, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5);
	szrNavigation->Layout();
		
	// Setup the month selection control.
	
	wxDateTime DTNow = wxDateTime::Now();
	
	Moo = new XCCalendarMonthSelect(this);
	Month = ((int)DTNow.GetMonth() + 1);
	Year = DTNow.GetYear();
	Moo->UpdateDate(Month, Year);
		
}

XCCalendarManipulator::~XCCalendarManipulator(){
	
	// Destory the controls from the widget.
	
}

void XCCalendarManipulator::DateTextClick(wxCommandEvent &event){
	
	// Bring up a popup control to select the month and year.
	
	Moo->SetPosition(wxPoint(DateButton->GetScreenRect().GetLeft(), DateButton->GetScreenRect().GetBottom()));
	Moo->UpdateDate(Month, Year);
	Moo->Popup();
	
}

void XCCalendarManipulator::ChangeGrid(wxCommandEvent &event){
	
	if (Month == Moo->GetMonth() && Year == Moo->GetYear()){
		return;
	}
	
	Month = Moo->GetMonth();
	Year = Moo->GetYear();
	
	// Post an event to the parent control to update the grid.
	
	wxCommandEvent ChangeGrid(XCCALENDARCTRL_CHANGEGRID);
	wxPostEvent(this->GetParent(), ChangeGrid);
	
	UpdateDateButtonText();
	
}

void XCCalendarManipulator::NextMonth(wxCommandEvent &event){
	
	int NewMonth = 1;
	int NewYear = 0;
	
	// Get the current month and year.
	
	NewMonth = Moo->GetMonth();
	NewYear = Moo->GetYear();

	if (NewMonth == 12){
		NewMonth = 1;
		NewYear++;
	} else {
		NewMonth++;
	}
	
	Month = NewMonth;
	Year = NewYear;

	Moo->UpdateDate(Month, Year);
	
	// Post an event to the parent control to update the grid.
	
	wxCommandEvent ChangeGrid(XCCALENDARCTRL_CHANGEGRID);
	wxPostEvent(this->GetParent(), ChangeGrid);

	UpdateDateButtonText();
	
}

void XCCalendarManipulator::PreviousMonth(wxCommandEvent &event){
	
	int NewMonth = 1;
	int NewYear = 0;
	
	// Get the current month and year.
	
	NewMonth = Moo->GetMonth();
	NewYear = Moo->GetYear();

	if (NewMonth == 1){
		NewMonth = 12;
		NewYear--;
	} else {
		NewMonth--;
	}

	Month = NewMonth;
	Year = NewYear;
	
	Moo->UpdateDate(Month, Year);
	
	// Post an event to the parent control to update the grid.
	
	wxCommandEvent ChangeGrid(XCCALENDARCTRL_CHANGEGRID);
	wxPostEvent(this->GetParent(), ChangeGrid);
	
	UpdateDateButtonText();
	
}

void XCCalendarManipulator::UpdateDateButtonText(){
	
	// Update the date text.
	
	string NewDateText = "";
	
	switch (Moo->GetMonth()){
		case 1:
			NewDateText = _("January");
			break;
		case 2:
			NewDateText = _("February");
			break;
		case 3:
			NewDateText = _("March");
			break;
		case 4:
			NewDateText = _("April");
			break;
		case 5:
			NewDateText = _("May");
			break;
		case 6:
			NewDateText = _("June");
			break;
		case 7:
			NewDateText = _("July");
			break;
		case 8:
			NewDateText = _("August");
			break;
		case 9:
			NewDateText = _("September");
			break;
		case 10:
			NewDateText = _("October");
			break;
		case 11:
			NewDateText = _("November");
			break;
		case 12:
			NewDateText = _("December");
			break;
	}
	
	NewDateText += " ";
	
	NewDateText += to_string(Year);
	
	DateButton->SetLabel(NewDateText);
	szrMain->Layout();
	
}

int XCCalendarManipulator::GetMonth(){
	
	return Month;
	
}

int XCCalendarManipulator::GetYear(){
	
	return Year;
	
}