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//
// Copyright (c) 2004-2021 musikcube team
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//////////////////////////////////////////////////////////////////////////////

#include <stdafx.h>

#include "LocalLibrarySettingsLayout.h"

#include <cursespp/App.h>
#include <cursespp/Colors.h>
#include <cursespp/Screen.h>
#include <cursespp/SingleLineEntry.h>

#include <musikcore/library/Indexer.h>
#include <musikcore/library/LocalLibraryConstants.h>
#include <musikcore/library/LibraryFactory.h>
#include <musikcore/support/PreferenceKeys.h>
#include <musikcore/support/Messages.h>

#include <app/util/Hotkeys.h>
#include <app/util/Messages.h>
#include <app/util/PreferenceKeys.h>

using namespace std::placeholders;
using namespace musik;
using namespace musik::core;
using namespace musik::core::library::constants;
using namespace musik::core::sdk;
using namespace musik::cube;
using namespace cursespp;

using EntryPtr = IScrollAdapter::EntryPtr;
static bool showDotfiles = false;

LocalLibrarySettingsLayout::LocalLibrarySettingsLayout()
: LayoutBase()
, library(LibraryFactory::Instance().DefaultLocalLibrary())
, indexer(library->Indexer()) {
    this->browseAdapter = std::make_shared<DirectoryAdapter>();
    this->addedPathsAdapter = std::make_shared<SimpleScrollAdapter>();
    this->SetFocusMode(FocusModeTerminating);
    this->InitializeWindows();
}

void LocalLibrarySettingsLayout::OnLayout() {
    const int cx = this->GetWidth();
    const int leftX = 0;
    const int leftWidth = cx / 3; /* 1/3 width */
    const int rightX = leftWidth;
    const int rightWidth = cx - rightX; /* remainder (~2/3) */
    const int pathsHeight = this->GetHeight() - 1;
    this->browseList->MoveAndResize(leftX, 1, leftWidth, pathsHeight);
    this->addedPathsList->MoveAndResize(rightX, 1, rightWidth, pathsHeight);
}

void LocalLibrarySettingsLayout::LoadPreferences() {
    this->addedPathsAdapter->Clear();

    std::vector<std::string> paths;
    this->indexer->GetPaths(paths);

    for (size_t i = 0; i < paths.size(); i++) {
        auto v = paths.at(i);
        auto e = std::make_shared<SingleLineEntry>(v);
        this->addedPathsAdapter->AddEntry(e);
    }

    this->addedPathsList->OnAdapterChanged();
}

Color LocalLibrarySettingsLayout::ListItemDecorator(
    ScrollableWindow* scrollable,
    size_t index,
    size_t line,
    IScrollAdapter::EntryPtr entry)
{
    if (scrollable == this->addedPathsList.get() ||
        scrollable == this->browseList.get())
    {
         ListWindow* lw = dynamic_cast<ListWindow*>(scrollable);
         if (lw && lw->GetSelectedIndex() == index) {
             return Color::ListItemHighlighted;
         }
    }
    return Color::Default;
}

void LocalLibrarySettingsLayout::InitializeWindows() {
    this->SetFrameVisible(false);

    this->addedPathsList = std::make_shared<ListWindow>(this->addedPathsAdapter);
    this->addedPathsList->SetFrameTitle(_TSTR("settings_backspace_to_remove"));

    this->browseList = std::make_shared<ListWindow>(this->browseAdapter);
    this->browseList->SetFrameTitle(_TSTR("settings_space_to_add"));

    ScrollAdapterBase::ItemDecorator decorator =
        std::bind(
            &LocalLibrarySettingsLayout::ListItemDecorator,
            this,
            std::placeholders::_1,
            std::placeholders::_2,
            std::placeholders::_3,
            std::placeholders::_4);

    this->addedPathsAdapter->SetItemDecorator(decorator);
    this->browseAdapter->SetItemDecorator(decorator);

    int order = 0;
    this->browseList->SetFocusOrder(order++);
    this->addedPathsList->SetFocusOrder(order++);

    this->AddWindow(this->browseList);
    this->AddWindow(this->addedPathsList);
}

void LocalLibrarySettingsLayout::ToggleShowDotFiles() {
    showDotfiles = !showDotfiles;
    this->browseAdapter->SetDotfilesVisible(showDotfiles);
    this->browseList->OnAdapterChanged();
}

void LocalLibrarySettingsLayout::AddSelectedDirectory() {
    size_t index = this->browseList->GetSelectedIndex();

    if (index == ListWindow::NO_SELECTION) {
        index = 0;
    }

    std::string path = this->browseAdapter->GetFullPathAt(index);

    if (path.size()) {
        this->indexer->AddPath(path);
        this->LoadPreferences();
        this->library->Indexer()->Schedule(IIndexer::SyncType::Local);
    }
}

void LocalLibrarySettingsLayout::RemoveSelectedDirectory() {
    std::vector<std::string> paths;
    this->indexer->GetPaths(paths);

    const size_t index = this->addedPathsList->GetSelectedIndex();
    if (index != ListWindow::NO_SELECTION) {
        this->indexer->RemovePath(paths.at(index));
        this->LoadPreferences();
        this->library->Indexer()->Schedule(IIndexer::SyncType::Local);
    }
}

void LocalLibrarySettingsLayout::DrillIntoSelectedDirectory() {
    size_t selectIndexAt = this->browseAdapter->Select(this->browseList.get());

    if (selectIndexAt == DirectoryAdapter::NO_INDEX) {
        selectIndexAt = 0;
    }

    this->browseList->SetSelectedIndex(selectIndexAt);
    this->browseList->ScrollTo(selectIndexAt);
}

bool LocalLibrarySettingsLayout::KeyPress(const std::string& key) {
    if (key == "KEY_ENTER") {
        if (this->GetFocus() == this->browseList) {
            this->DrillIntoSelectedDirectory();
            return true;
        }
    }
    else if (key == " ") {
        if (this->GetFocus() == this->browseList) {
            this->AddSelectedDirectory();
            return true;
        }
    }
    else if (key == "KEY_BACKSPACE" || key == "KEY_DC") { /* backspace */
        if (this->GetFocus() == this->addedPathsList) {
            this->RemoveSelectedDirectory();
            return true;
        }
    }

    return LayoutBase::KeyPress(key);
}
