/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation

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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */

#include "StdH.h"
#include <Engine/Base/KeyNames.h>
#include <Engine/CurrentVersion.h>
#include <GameMP/LCDDrawing.h>
#include "MGFileButton.h"
#include "GUI/Menus/MenuManager.h"

extern CSoundData *_psdPress;


CMGFileButton::CMGFileButton(void)
{
	mg_iState = FBS_NORMAL;
}

// refresh current text from description
void CMGFileButton::RefreshText(void)
{
	mg_strText = mg_strDes;
	mg_strText.OnlyFirstLine();
	mg_strInfo = mg_strDes;
	mg_strInfo.RemovePrefix(mg_strText);
	mg_strInfo.DeleteChar(0);
}

void CMGFileButton::SaveDescription(void)
{
	CTFileName fnFileNameDescription = mg_fnm.NoExt() + ".des";
	try {
		mg_strDes.Save_t(fnFileNameDescription);
	}
	catch (char *strError) {
		CPrintF("%s\n", strError);
	}
}

CMGFileButton *_pmgFileToSave = NULL;
void OnFileSaveOK(void)
{
	if (_pmgFileToSave != NULL) {
		_pmgFileToSave->SaveYes();
	}
}

void CMGFileButton::DoSave(void)
{
	if (FileExistsForWriting(mg_fnm)) {
		_pmgFileToSave = this;
		extern void SaveConfirm(void);
		SaveConfirm();
	}
	else {
		SaveYes();
	}
}

void CMGFileButton::SaveYes(void)
{
	ASSERT(_pGUIM->gmLoadSaveMenu.gm_bSave);
	// call saving function
	BOOL bSucceeded = _pGUIM->gmLoadSaveMenu.gm_pAfterFileChosen(mg_fnm);
	// if saved
	if (bSucceeded) {
		// save the description too
		SaveDescription();
	}
}

void CMGFileButton::DoLoad(void)
{
	ASSERT(!_pGUIM->gmLoadSaveMenu.gm_bSave);
	// if no file
	if (!FileExists(mg_fnm)) {
		// do nothing
		return;
	}
	if (_pGUIM->gmLoadSaveMenu.gm_pgmNextMenu != NULL) {
		_pGUIM->gmLoadSaveMenu.gm_pgmParentMenu = _pGUIM->gmLoadSaveMenu.gm_pgmNextMenu;
	}
	// call loading function
	BOOL bSucceeded = _pGUIM->gmLoadSaveMenu.gm_pAfterFileChosen(mg_fnm);
	ASSERT(bSucceeded);
}

static CTString _strTmpDescription;
static CTString _strOrgDescription;

void CMGFileButton::StartEdit(void)
{
	CMGEdit::OnActivate();
}

void CMGFileButton::OnActivate(void)
{
	if (mg_fnm == "") {
		return;
	}

	PlayMenuSound(_psdPress);
	IFeel_PlayEffect("Menu_press");

	// if loading
	if (!_pGUIM->gmLoadSaveMenu.gm_bSave) {
		// load now
		DoLoad();
		// if saving
	}
	else {
		// switch to editing mode
		BOOL bWasEmpty = mg_strText == EMPTYSLOTSTRING;
		mg_strDes = _pGUIM->gmLoadSaveMenu.gm_strSaveDes;
		RefreshText();
		_strOrgDescription = _strTmpDescription = mg_strText;
		if (bWasEmpty) {
			_strOrgDescription = EMPTYSLOTSTRING;
		}
		mg_pstrToChange = &_strTmpDescription;
		StartEdit();
		mg_iState = FBS_SAVENAME;
	}
}

BOOL CMGFileButton::OnKeyDown(int iVKey)
{
	if (mg_iState == FBS_NORMAL) {
		if (_pGUIM->gmLoadSaveMenu.gm_bSave || _pGUIM->gmLoadSaveMenu.gm_bManage) {
			if (iVKey == VK_F2) {
				if (FileExistsForWriting(mg_fnm)) {
					// switch to renaming mode
					_strOrgDescription = mg_strText;
					_strTmpDescription = mg_strText;
					mg_pstrToChange = &_strTmpDescription;
					StartEdit();
					mg_iState = FBS_RENAME;
				}
				return TRUE;
			}
			else if (iVKey == VK_DELETE) {
				if (FileExistsForWriting(mg_fnm)) {
					// delete the file, its description and thumbnail
					RemoveFile(mg_fnm);
					RemoveFile(mg_fnm.NoExt() + ".des");
					RemoveFile(mg_fnm.NoExt() + "Tbn.tex");
					// refresh menu
					_pGUIM->gmLoadSaveMenu.EndMenu();
					_pGUIM->gmLoadSaveMenu.StartMenu();
					OnSetFocus();
				}
				return TRUE;
			}
		}
		return CMenuGadget::OnKeyDown(iVKey);
	}
	else {
		// go out of editing mode
		if (mg_bEditing) {
			if (iVKey == VK_UP || iVKey == VK_DOWN) {
				CMGEdit::OnKeyDown(VK_ESCAPE);
			}
		}
		return CMGEdit::OnKeyDown(iVKey);
	}
}

void CMGFileButton::OnSetFocus(void)
{
	mg_iState = FBS_NORMAL;

	if (_pGUIM->gmLoadSaveMenu.gm_bAllowThumbnails && mg_bEnabled) {
		SetThumbnail(mg_fnm);
	} else {
		ClearThumbnail();
	}
	pgmCurrentMenu->KillAllFocuses();
	CMGButton::OnSetFocus();
}

void CMGFileButton::OnKillFocus(void)
{
	// go out of editing mode
	if (mg_bEditing) {
		OnKeyDown(VK_ESCAPE);
	}
	CMGEdit::OnKillFocus();
}

// override from edit gadget
void CMGFileButton::OnStringChanged(void)
{
	// if saving
	if (mg_iState == FBS_SAVENAME) {
		// do the save
		mg_strDes = _strTmpDescription + "\n" + mg_strInfo;
		DoSave();
		// if renaming
	}
	else if (mg_iState == FBS_RENAME) {
		// do the rename
		mg_strDes = _strTmpDescription + "\n" + mg_strInfo;
		SaveDescription();
		// refresh menu
		_pGUIM->gmLoadSaveMenu.EndMenu();
		_pGUIM->gmLoadSaveMenu.StartMenu();
		OnSetFocus();
	}
}
void CMGFileButton::OnStringCanceled(void)
{
	mg_strText = _strOrgDescription;
}

void CMGFileButton::Render(CDrawPort *pdp)
{
	// render original gadget first
	CMGEdit::Render(pdp);

	// if currently selected
	if (mg_bFocused && mg_bEnabled) {
		// add info at the bottom if screen
		SetFontMedium(pdp);

		PIXaabbox2D box = FloatBoxToPixBox(pdp, BoxSaveLoad(15.0));
		PIX pixI = box.Min()(1);
		PIX pixJ = box.Min()(2);

		COLOR col = LCDGetColor(C_mlGREEN | 255, "file info");
		pdp->PutText(mg_strInfo, pixI, pixJ, col);
	}
}