/*
 * Copyright 2007-2009, Haiku, Inc. All rights reserved.
 * Copyright 2003-2004 Kian Duffy, myob@users.sourceforge.net
 * Parts Copyright 1998-1999 Kazuho Okui and Takashi Murai.
 * All rights reserved. Distributed under the terms of the MIT license.
 */


#include "AppearPrefView.h"
#include "PrefHandler.h"
#include "PrefWindow.h"
#include "TermConst.h"

#include <Alert.h>
#include <Box.h>
#include <Button.h>
#include <Catalog.h>
#include <FilePanel.h>
#include <GroupLayoutBuilder.h>
#include <LayoutBuilder.h>
#include <Locale.h>
#include <Path.h>

#include <stdio.h>

#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "Terminal PrefWindow"

PrefWindow::PrefWindow(const BMessenger& messenger)
        :
        BWindow(BRect(0, 0, 375, 185), "Terminal settings",
                B_TITLED_WINDOW_LOOK, B_NORMAL_WINDOW_FEEL,
                B_NOT_RESIZABLE | B_NOT_ZOOMABLE | B_AUTO_UPDATE_SIZE_LIMITS),
        fPreviousPref(new PrefHandler(PrefHandler::Default())),
        fSavePanel(NULL),
        fDirty(false),
        fTerminalMessenger(messenger)
{
        BString app = B_TRANSLATE_SYSTEM_NAME("Terminal");
        BString title = B_TRANSLATE_COMMENT("%app% settings", "window title");
        title.ReplaceFirst("%app%", app);
        SetTitle(title);

        BLayoutBuilder::Group<>(this, B_VERTICAL)
                .AddGroup(B_VERTICAL)
                .SetInsets(B_USE_WINDOW_SPACING)
                        .Add(fAppearanceView = new AppearancePrefView(
                                B_TRANSLATE("Appearance"), fTerminalMessenger))
                        .AddGroup(B_HORIZONTAL)
                                .Add(fDefaultsButton = new BButton("defaultsbutton",
                                        B_TRANSLATE("Defaults"), new BMessage(MSG_DEFAULTS_PRESSED),
                                        B_WILL_DRAW))
                                .Add(fRevertButton = new BButton("revertbutton",
                                        B_TRANSLATE("Revert"), new BMessage(MSG_REVERT_PRESSED),
                                        B_WILL_DRAW))
                                .AddGlue()
                                .Add(fSaveAsFileButton = new BButton("savebutton",
                                        B_TRANSLATE("Save to file" B_UTF8_ELLIPSIS),
                                        new BMessage(MSG_SAVEAS_PRESSED), B_WILL_DRAW))
                        .End()
                .End();

        fRevertButton->SetEnabled(fDirty);

        AddShortcut('Q', B_COMMAND_KEY, new BMessage(B_QUIT_REQUESTED));
        AddShortcut('W', B_COMMAND_KEY, new BMessage(B_QUIT_REQUESTED));

        CenterOnScreen();
        Show();
}


PrefWindow::~PrefWindow()
{
}


void
PrefWindow::Quit()
{
        fTerminalMessenger.SendMessage(MSG_PREF_CLOSED);
        delete fPreviousPref;
        delete fSavePanel;
        BWindow::Quit();
}


bool
PrefWindow::QuitRequested()
{
        if (fDirty)
                _Save();

        return true;
}


void
PrefWindow::_SaveAs()
{
        if (!fSavePanel) {
                BMessenger messenger(this);
                fSavePanel = new BFilePanel(B_SAVE_PANEL, &messenger);
        }

        fSavePanel->Show();
}


void
PrefWindow::_SaveRequested(BMessage *msg)
{
        entry_ref dirref;
        const char* filename;

        msg->FindRef("directory", &dirref);
        msg->FindString("name", &filename);

        BDirectory dir(&dirref);
        BPath path(&dir, filename);

        PrefHandler::Default()->SaveAsText(path.Path(), PREFFILE_MIMETYPE,
                TERM_SIGNATURE);
}


void
PrefWindow::_Save()
{
        delete fPreviousPref;
        fPreviousPref = new PrefHandler(PrefHandler::Default());

        PrefHandler::Default()->SaveDefaultAsText();
        fDirty = false;
}


void
PrefWindow::_Revert()
{
        if (fDirty) {
                PrefHandler::SetDefault(new PrefHandler(fPreviousPref));

                fTerminalMessenger.SendMessage(MSG_HALF_FONT_CHANGED);
                fTerminalMessenger.SendMessage(MSG_COLOR_CHANGED);
                fTerminalMessenger.SendMessage(MSG_TAB_TITLE_SETTING_CHANGED);
                fTerminalMessenger.SendMessage(MSG_WINDOW_TITLE_SETTING_CHANGED);

                fAppearanceView->Revert();

                fDirty = false;
                fRevertButton->SetEnabled(fDirty);
        }
}


void
PrefWindow::MessageReceived(BMessage* msg)
{
        switch (msg->what) {
                case MSG_SAVEAS_PRESSED:
                        _SaveAs();
                        break;

                case MSG_REVERT_PRESSED:
                        _Revert();
                        break;

                case MSG_DEFAULTS_PRESSED:
                        PrefHandler::SetDefault(new PrefHandler(false));
                        fTerminalMessenger.SendMessage(MSG_HALF_FONT_CHANGED);
                        fTerminalMessenger.SendMessage(MSG_COLOR_CHANGED);
                        fTerminalMessenger.SendMessage(MSG_TAB_TITLE_SETTING_CHANGED);
                        fTerminalMessenger.SendMessage(MSG_WINDOW_TITLE_SETTING_CHANGED);
                        fAppearanceView->Revert();
                        // fallthrough

                case MSG_PREF_MODIFIED:
                        fDirty = true;
                        fRevertButton->SetEnabled(fDirty);
                        break;

                case B_SAVE_REQUESTED:
                        _SaveRequested(msg);
                        break;

                default:
                        BWindow::MessageReceived(msg);
                        break;
        }
}