5 files changed, 155 insertions, 0 deletions
diff --git a/playlist/CMakeLists.txt b/playlist/CMakeLists.txt
new file mode 100644
index 0000000..54b397b
--- /dev/null
+++ b/playlist/CMakeLists.txt
@@ -0,0 +1,6 @@
+add_library(playlist STATIC
+    playlist.cpp playlist.hpp
+    playlistmodel.cpp playlistmodel.hpp
+)
+target_link_libraries(playlist PUBLIC Qt6::Core)
+target_include_directories(playlist INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/playlist/playlist.cpp b/playlist/playlist.cpp
new file mode 100644
index 0000000..778fae1
--- /dev/null
+++ b/playlist/playlist.cpp
@@ -0,0 +1,36 @@
+/* ============================================================
+ * SPDX-License-Identifier: GPL-3.0-only
+ * Copyright (C) 2023 aqua <aqua@iserlohn-fortress.net>
+ * ============================================================ */
+
+#include "playlist.hpp"
+#include "playlistmodel.hpp"
+#include <QDir>
+#include <QFileInfo>
+
+Playlist::Playlist(QObject *parent) : QObject{parent}, m_model(new PlaylistModel(this)) {}
+
+void Playlist::appendUrl(const QUrl &url)
+{
+  const QFileInfo info(url.toLocalFile());
+  if (!info.exists()) return; // if file doesn't exist, return
+
+  if (info.isFile()) {
+    emit mediaAboutToBeInserted(m_urls.count(), m_urls.count() + 1);
+    m_urls.append(url.toLocalFile());
+    emit mediaInserted();
+  }
+  else if (info.isFile()) {
+    QDir dir(info.absoluteFilePath());
+    const auto list = dir.entryInfoList(QDir::Files);
+    emit mediaAboutToBeInserted(m_urls.count(), m_urls.count() + list.count());
+    for (const auto &i : list) { m_urls.append(i.absoluteFilePath()); }
+    emit mediaInserted();
+  }
+}
+
+QUrl Playlist::operator[](const int index) const
+{
+  if (index < m_urls.count()) return m_urls.at(index);
+  return {};
+}
diff --git a/playlist/playlist.hpp b/playlist/playlist.hpp
new file mode 100644
index 0000000..4c9e385
--- /dev/null
+++ b/playlist/playlist.hpp
@@ -0,0 +1,39 @@
+/* ============================================================
+ * SPDX-License-Identifier: GPL-3.0-only
+ * Copyright (C) 2023 aqua <aqua@iserlohn-fortress.net>
+ * ============================================================ */
+
+#pragma once
+
+#include <QObject>
+#include <QUrl>
+
+class PlaylistModel;
+class Playlist : public QObject {
+  Q_OBJECT
+public:
+  explicit Playlist(QObject *parent = nullptr);
+
+public slots:
+  void appendUrl(const QUrl &url);
+
+public:
+  void appendList(const QList<QUrl> &urllist)
+  {
+    for (const auto &url : urllist) appendUrl(url);
+  }
+
+  [[nodiscard]] QUrl operator[](const int index) const;
+  [[nodiscard]] auto count() const { return m_urls.count(); }
+  [[nodiscard]] auto model() { return m_model; }
+
+signals:
+  void mediaAboutToBeInserted(int start, int end);
+  void mediaInserted();
+  void mediaAboutToBeRemoved(int start, int end);
+  void mediaRemoved();
+
+private:
+  QVector<QUrl> m_urls;
+  PlaylistModel *m_model;
+};
diff --git a/playlist/playlistmodel.cpp b/playlist/playlistmodel.cpp
new file mode 100644
index 0000000..9eb2629
--- /dev/null
+++ b/playlist/playlistmodel.cpp
@@ -0,0 +1,46 @@
+/* ============================================================
+ * SPDX-License-Identifier: GPL-3.0-only
+ * Copyright (C) 2023 aqua <aqua@iserlohn-fortress.net>
+ * ============================================================ */
+
+#include "playlistmodel.hpp"
+#include "playlist.hpp"
+
+PlaylistModel::PlaylistModel(Playlist *parent) : QAbstractItemModel{parent}, playlist(parent)
+{
+  Q_CHECK_PTR(parent);
+  connect(parent, &Playlist::mediaAboutToBeInserted, this, &PlaylistModel::beginInsertItems);
+  connect(parent, &Playlist::mediaInserted, this, &PlaylistModel::endInsertItems);
+}
+
+QModelIndex PlaylistModel::index(int row, int column, const QModelIndex &parent) const
+{
+  if (parent.isValid()) return {};
+  return createIndex(row, column);
+}
+
+QModelIndex PlaylistModel::parent(const QModelIndex &child) const { return {}; }
+
+int PlaylistModel::rowCount(const QModelIndex &parent) const
+{
+  if (parent.isValid()) return 0;
+  return playlist->count();
+}
+
+int PlaylistModel::columnCount(const QModelIndex &parent) const
+{
+  if (parent.isValid()) return 0;
+  return 1;
+}
+
+QVariant PlaylistModel::data(const QModelIndex &index, int role) const
+{
+  if (!index.isValid()) return {};
+
+  switch (role) {
+  case Qt::DisplayRole:
+    return (*playlist)[index.row()];
+  default:
+    return {};
+  }
+}
diff --git a/playlist/playlistmodel.hpp b/playlist/playlistmodel.hpp
new file mode 100644
index 0000000..e5cedfe
--- /dev/null
+++ b/playlist/playlistmodel.hpp
@@ -0,0 +1,28 @@
+/* ============================================================
+ * SPDX-License-Identifier: GPL-3.0-only
+ * Copyright (C) 2023 aqua <aqua@iserlohn-fortress.net>
+ * ============================================================ */
+
+#pragma once
+
+#include <QAbstractItemModel>
+
+class Playlist;
+class PlaylistModel : public QAbstractItemModel {
+public:
+  explicit PlaylistModel(Playlist *parent);
+  ~PlaylistModel() = default;
+
+  QModelIndex index(int row, int column, const QModelIndex &parent) const;
+  QModelIndex parent(const QModelIndex &child) const;
+  int rowCount(const QModelIndex &parent) const;
+  int columnCount(const QModelIndex &parent) const;
+  QVariant data(const QModelIndex &index, int role) const;
+
+private slots:
+  void beginInsertItems(int start, int end) { beginInsertRows(QModelIndex(), start, end); }
+  void endInsertItems() { endInsertRows(); }
+
+private:
+  Playlist *playlist;
+};