/*
 * Copyright 2010-2017, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Philippe Houdoin
 */


#include "ConfigView.h"

#include <stdio.h>
#include <string.h>

#include <Catalog.h>
#include <CheckBox.h>
#include <LayoutBuilder.h>
#include <MenuField.h>
#include <MenuItem.h>
#include <Message.h>
#include <PopUpMenu.h>
#include <Slider.h>
#include <StringView.h>

#include "webp/encode.h"

#include "TranslatorSettings.h"
#include "WebPTranslator.h"


#undef B_TRANSLATION_CONTEXT
#define B_TRANSLATION_CONTEXT "ConfigView"


static const uint32 kMsgQuality = 'qlty';
static const uint32 kMsgPreset  = 'prst';
static const uint32 kMsgMethod  = 'metd';
static const uint32 kMsgPreprocessing = 'pprc';

static const struct preset_name {
        const char*     name;
        WebPPreset      id;
} kPresetNames[] = {
        { B_TRANSLATE("Default"),       WEBP_PRESET_DEFAULT },
        { B_TRANSLATE("Picture"),       WEBP_PRESET_PICTURE },
        { B_TRANSLATE("Photo"),         WEBP_PRESET_PHOTO },
        { B_TRANSLATE("Drawing"),       WEBP_PRESET_DRAWING },
        { B_TRANSLATE("Icon"),          WEBP_PRESET_ICON },
        { B_TRANSLATE("Text"),          WEBP_PRESET_TEXT },
        { NULL },
};


ConfigView::ConfigView(TranslatorSettings* settings)
        :
        BGroupView(B_TRANSLATE("WebPTranslator Settings"), B_VERTICAL),
        fSettings(settings)
{
        SetViewUIColor(B_PANEL_BACKGROUND_COLOR);

        BStringView* title = new BStringView("title",
                B_TRANSLATE("WebP image translator"));
        title->SetFont(be_bold_font);

        char versionString[256];
        sprintf(versionString, "v%d.%d.%d, %s",
                static_cast<int>(B_TRANSLATION_MAJOR_VERSION(WEBP_TRANSLATOR_VERSION)),
                static_cast<int>(B_TRANSLATION_MINOR_VERSION(WEBP_TRANSLATOR_VERSION)),
                static_cast<int>(B_TRANSLATION_REVISION_VERSION(
                        WEBP_TRANSLATOR_VERSION)),
                __DATE__);

        BStringView* version = new BStringView("version", versionString);

        BString copyrightsText;
        BStringView *copyrightView = new BStringView("Copyright",
                B_TRANSLATE(B_UTF8_COPYRIGHT "2010-2017 Haiku Inc."));

        BString libwebpInfo = B_TRANSLATE(
                "Based on libwebp %version%");
        int v = WebPGetEncoderVersion();
        char libwebpVersion[32];
        snprintf(libwebpVersion, sizeof(libwebpVersion),
                "%d.%d.%d", v >> 16, (v>>8)&255, v&255);
        libwebpInfo.ReplaceAll("%version%", libwebpVersion);

        BStringView *copyright2View = new BStringView("Copyright2",
                libwebpInfo.String());
        BStringView *copyright3View = new BStringView("Copyright3",
                B_TRANSLATE(B_UTF8_COPYRIGHT "2010-2017 Google Inc."));

        // output parameters

        fPresetsMenu = new BPopUpMenu(B_TRANSLATE("Preset"));
        const struct preset_name* preset = kPresetNames;
        while (preset->name != NULL) {
                BMessage* msg = new BMessage(kMsgPreset);
                msg->AddInt32("value", preset->id);

                BMenuItem* item = new BMenuItem(preset->name, msg);
                if (fSettings->SetGetInt32(WEBP_SETTING_PRESET) == preset->id)
                        item->SetMarked(true);
                fPresetsMenu->AddItem(item);

                preset++;
        }
        BMenuField* presetsField = new BMenuField(B_TRANSLATE("Output preset:"),
                fPresetsMenu);

        fQualitySlider = new BSlider("quality", B_TRANSLATE("Output quality:"),
                new BMessage(kMsgQuality), 0, 100, B_HORIZONTAL, B_TRIANGLE_THUMB);
        fQualitySlider->SetHashMarks(B_HASH_MARKS_BOTTOM);
        fQualitySlider->SetHashMarkCount(10);
        fQualitySlider->SetLimitLabels(B_TRANSLATE("Low"), B_TRANSLATE("High"));
        fQualitySlider->SetValue(fSettings->SetGetInt32(WEBP_SETTING_QUALITY));

        fMethodSlider = new BSlider("method", B_TRANSLATE("Compression method:"),
                new BMessage(kMsgMethod), 0, 6, B_HORIZONTAL, B_TRIANGLE_THUMB);
        fMethodSlider->SetHashMarks(B_HASH_MARKS_BOTTOM);
        fMethodSlider->SetHashMarkCount(7);
        fMethodSlider->SetLimitLabels(B_TRANSLATE("Fast"),
                B_TRANSLATE("Slower but better"));
        fMethodSlider->SetValue(fSettings->SetGetInt32(WEBP_SETTING_METHOD));

        fPreprocessingCheckBox = new BCheckBox("preprocessing",
                B_TRANSLATE("Preprocessing filter"), new BMessage(kMsgPreprocessing));
        if (fSettings->SetGetBool(WEBP_SETTING_PREPROCESSING))
                fPreprocessingCheckBox->SetValue(B_CONTROL_ON);

        // Build the layout
        BLayoutBuilder::Group<>(this, B_VERTICAL, 0)
                .SetInsets(B_USE_DEFAULT_SPACING)
                .Add(title)
                .Add(version)
                .Add(copyrightView)
                .AddGlue()
                .AddGrid(B_USE_DEFAULT_SPACING, B_USE_SMALL_SPACING)
                        .Add(presetsField->CreateLabelLayoutItem(), 0, 0)
                        .AddGroup(B_HORIZONTAL, 0.0f, 1, 0)
                                .Add(presetsField->CreateMenuBarLayoutItem(), 0.0f)
                                .AddGlue()
                                .End()
                        .End()
                .Add(fQualitySlider)
                .Add(fMethodSlider)
                .Add(fPreprocessingCheckBox)
                .AddGlue()
                .Add(copyright2View)
                .Add(copyright3View);
}


ConfigView::~ConfigView()
{
        fSettings->Release();
}


void
ConfigView::AttachedToWindow()
{
        BGroupView::AttachedToWindow();

        fPresetsMenu->SetTargetForItems(this);

        fQualitySlider->SetTarget(this);
        fMethodSlider->SetTarget(this);
        fPreprocessingCheckBox->SetTarget(this);

        if (Parent() == NULL && Window()->GetLayout() == NULL) {
                Window()->SetLayout(new BGroupLayout(B_VERTICAL));
                Window()->ResizeTo(PreferredSize().Width(), PreferredSize().Height());
        }
}


void
ConfigView::MessageReceived(BMessage* message)
{
        struct {
                const char*             name;
                uint32                  what;
                TranSettingType type;
        } maps[] = {
                { WEBP_SETTING_PRESET, kMsgPreset, TRAN_SETTING_INT32 },
                { WEBP_SETTING_QUALITY, kMsgQuality, TRAN_SETTING_INT32 },
                { WEBP_SETTING_METHOD, kMsgMethod, TRAN_SETTING_INT32 },
                { WEBP_SETTING_PREPROCESSING, kMsgPreprocessing, TRAN_SETTING_BOOL },
                { NULL }
        };

        int i;
        for (i = 0; maps[i].name != NULL; i++) {
                if (maps[i].what == message->what)
                        break;
        }

        if (maps[i].name == NULL) {
                BGroupView::MessageReceived(message);
                return;
        }

        int32 value;
        if (message->FindInt32("value", &value) == B_OK
                || message->FindInt32("be:value", &value) == B_OK) {
                switch(maps[i].type) {
                        case TRAN_SETTING_BOOL:
                        {
                                bool boolValue = value;
                                fSettings->SetGetBool(maps[i].name, &boolValue);
                                break;
                        }
                        case TRAN_SETTING_INT32:
                                fSettings->SetGetInt32(maps[i].name, &value);
                                break;
                }
                fSettings->SaveSettings();
        }
}