#include "maincontent.hpp"

#include <QVBoxLayout>
#include <QPushButton>

MainContent::MainContent(QobuzBackend *backend, PlayQueue *queue, QWidget *parent)
    : QWidget(parent)
    , m_backend(backend)
{
    auto *layout = new QVBoxLayout(this);
    layout->setContentsMargins(0, 0, 0, 0);

    m_stack = new QStackedWidget(this);
    layout->addWidget(m_stack);

    m_welcome = new QLabel(
        tr("<h2>Welcome to Qobuz</h2>"
           "<p>Select something from the library on the left to get started,<br>"
           "or use the search panel (🔍) to find music.</p>"),
        this);
    m_welcome->setAlignment(Qt::AlignCenter);

    // Tracks page: context header + track list
    auto *tracksPage = new QWidget(this);
    auto *tracksLayout = new QVBoxLayout(tracksPage);
    tracksLayout->setContentsMargins(0, 0, 0, 0);
    tracksLayout->setSpacing(0);

    m_header = new TrackContextHeader(tracksPage);
    m_header->hide();
    m_tracks = new List::Tracks(m_backend, queue, tracksPage);
    tracksLayout->addWidget(m_header);
    tracksLayout->addWidget(m_tracks, 1);

    QObject::connect(m_header->playButton(),    &QPushButton::clicked,
                     [this] { m_tracks->playAll(false); });
    QObject::connect(m_header->shuffleButton(), &QPushButton::clicked,
                     [this] { m_tracks->playAll(true); });
    QObject::connect(m_header->subtitleButton(), &QPushButton::clicked,
                     [this] {
        const qint64 id = m_header->artistId();
        if (id > 0) emit artistRequested(id);
    });

    m_albumList  = new AlbumListView(this);
    m_artistList = new ArtistListView(this);
    m_artistView = new ArtistView(backend, queue, this);

    m_stack->addWidget(m_welcome);    // 0
    m_stack->addWidget(tracksPage);   // 1
    m_stack->addWidget(m_albumList);  // 2
    m_stack->addWidget(m_artistList); // 3
    m_stack->addWidget(m_artistView); // 4

    m_stack->setCurrentIndex(0);

    connect(m_albumList,  &AlbumListView::albumSelected,   this, &MainContent::albumRequested);
    connect(m_artistList, &ArtistListView::artistSelected, this, &MainContent::artistRequested);
    connect(m_artistView, &ArtistView::albumSelected,      this, &MainContent::albumRequested);
    connect(m_artistView, &ArtistView::playTrackRequested, this, &MainContent::playTrackRequested);
}

void MainContent::showWelcome()       { m_stack->setCurrentIndex(0); }

void MainContent::showAlbum(const QJsonObject &album)
{
    m_header->setAlbum(album);
    m_tracks->loadAlbum(album);
    m_stack->setCurrentIndex(1);
}

void MainContent::showPlaylist(const QJsonObject &playlist)
{
    m_header->setPlaylist(playlist);
    m_tracks->loadPlaylist(playlist);
    m_stack->setCurrentIndex(1);
}

void MainContent::showFavTracks(const QJsonObject &result)
{
    m_header->hide();
    m_tracks->loadTracks(result["items"].toArray());
    m_stack->setCurrentIndex(1);
}

void MainContent::showSearchTracks(const QJsonArray &tracks)
{
    m_header->hide();
    m_tracks->loadSearchTracks(tracks);
    m_stack->setCurrentIndex(1);
}

void MainContent::showFavAlbums(const QJsonObject &result)
{
    m_albumList->setAlbums(result["items"].toArray());
    m_stack->setCurrentIndex(2);
}

void MainContent::showFavArtists(const QJsonObject &result)
{
    m_artistList->setArtists(result["items"].toArray());
    m_stack->setCurrentIndex(3);
}

void MainContent::showArtist(const QJsonObject &artist)
{
    m_artistView->setArtist(artist);
    m_stack->setCurrentIndex(4);
}

void MainContent::updateArtistReleases(const QString &releaseType, const QJsonArray &items, bool hasMore, int offset)
{
    m_artistView->setReleases(releaseType, items, hasMore, offset);
}

void MainContent::setFavArtistIds(const QSet<qint64> &ids)
{
    m_artistView->setFavArtistIds(ids);
}