Add Spotify support

src/spotify/spotifybaserequest.h

@@ -0,0 +1,91 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2022-2024, Jonas Kvinge <jonas@jkvinge.net>
+ *
+ * Strawberry is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Strawberry is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef SPOTIFYBASEREQUEST_H
+#define SPOTIFYBASEREQUEST_H
+
+#include "config.h"
+
+#include <QtGlobal>
+#include <QObject>
+#include <QSet>
+#include <QList>
+#include <QPair>
+#include <QVariant>
+#include <QByteArray>
+#include <QString>
+#include <QStringList>
+#include <QUrl>
+#include <QSslError>
+#include <QJsonObject>
+#include <QJsonValue>
+
+#include "spotifyservice.h"
+
+class QNetworkReply;
+class NetworkAccessManager;
+
+class SpotifyBaseRequest : public QObject {
+  Q_OBJECT
+
+ public:
+  explicit SpotifyBaseRequest(SpotifyService *service, NetworkAccessManager *network, QObject *parent = nullptr);
+
+  enum class QueryType {
+    None,
+    Artists,
+    Albums,
+    Songs,
+    SearchArtists,
+    SearchAlbums,
+    SearchSongs,
+    StreamURL,
+  };
+
+ protected:
+  typedef QPair<QString, QString> Param;
+  typedef QList<Param> ParamList;
+
+  QNetworkReply *CreateRequest(const QString &ressource_name, const ParamList &params_provided);
+  QByteArray GetReplyData(QNetworkReply *reply);
+  QJsonObject ExtractJsonObj(const QByteArray &data);
+  QJsonValue ExtractItems(const QByteArray &data);
+  QJsonValue ExtractItems(const QJsonObject &json_obj);
+
+  virtual void Error(const QString &error, const QVariant &debug = QVariant()) = 0;
+  static QString ErrorsToHTML(const QStringList &errors);
+
+  int artistssearchlimit() { return service_->artistssearchlimit(); }
+  int albumssearchlimit() { return service_->albumssearchlimit(); }
+  int songssearchlimit() { return service_->songssearchlimit(); }
+
+  QString access_token() { return service_->access_token(); }
+
+  bool authenticated() { return service_->authenticated(); }
+
+ private slots:
+  void HandleSSLErrors(const QList<QSslError> &ssl_errors);
+
+ private:
+  SpotifyService *service_;
+  NetworkAccessManager *network_;
+
+};
+
+#endif  // SPOTIFYBASEREQUEST_H