Add tidal cover provider

src/covermanager/tidalcoverprovider.h

@@ -0,0 +1,83 @@
+/*
+ * Strawberry Music Player
+ * Copyright 2018, 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 TIDALCOVERPROVIDER_H
+#define TIDALCOVERPROVIDER_H
+
+#include "config.h"
+
+#include <stdbool.h>
+
+#include <QObject>
+#include <QVariant>
+#include <QByteArray>
+#include <QString>
+#include <QNetworkAccessManager>
+#include <QNetworkReply>
+#include <QJsonValue>
+#include <QJsonObject>
+#include <QJsonArray>
+
+#include "coverprovider.h"
+#include "tidal/tidalservice.h"
+
+class Application;
+
+class TidalCoverProvider : public CoverProvider {
+  Q_OBJECT
+
+ public:
+  explicit TidalCoverProvider(Application *app, QObject *parent = nullptr);
+  void SetService(TidalService *service);
+  void ReloadSettings();
+  bool StartSearch(const QString &artist, const QString &album, int id);
+  void CancelSearch(int id);
+
+ private slots:
+  void HandleSearchReply(QNetworkReply *reply, int id);
+
+ private:
+  typedef QPair<QString, QString> Param;
+  static const char *kApiUrl;
+  static const char *kResourcesUrl;
+  static const char *kApiTokenB64;
+  static const int kLimit;
+
+  //QString username_;
+  //QString password_;
+  //QString session_id_;
+  //quint64 user_id_;
+  //QString country_code_;
+
+#if 0
+  void LoadSessionID();
+#endif
+  QNetworkReply *CreateRequest(const QString &ressource_name, const QList<Param> &params_supplied);
+  QByteArray GetReplyData(QNetworkReply *reply, QString &error);
+  QJsonObject ExtractJsonObj(QByteArray &data, QString &error);
+  QJsonValue ExtractItems(QByteArray &data, QString &error);
+  QJsonValue ExtractItems(QJsonObject &json_obj, QString &error);
+  QString Error(QString error, QVariant debug = QVariant());
+
+  TidalService *service_;
+  QNetworkAccessManager *network_;
+
+};
+
+#endif  // TIDALCOVERPROVIDER_H