Merge branch 'feature/apiClienRefactoring' into develop

CMakeLists.txt

@@ -38,6 +38,7 @@ add_library(${TARGET_APP} STATIC
   network/apiroutes.h
   # 3rd party libraries
   ../3rdParty/rapidcsv/src/rapidcsv.h
+  utils/messagehandler.h
 )
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})

data/filehandler.cpp

@@ -45,6 +45,7 @@ QList<ModelItemValues> FileHandler::getItemValuesFromCSVFile(const QString& file
   QFile file;
   file.setFileName(filePath);
   if (file.exists()) {
+    // TODO inform UI on CSV import errors
     result = CsvParser::getItemsFromCSVFile(filePath);
   }
   return result;

data/settingshandler.cpp

@@ -40,4 +40,48 @@ void SettingsHandler::saveSettings(QVariantMap settingMap, QString group) {
   settings.sync();
 }
 
+void SettingsHandler::deleteSettings(QStringList keys, QString group) {
+  qInfo() << "deleting settings...";
+
+  QSettings settings;
+  if (!group.isEmpty()) {
+    qDebug() << "starting group:" << group;
+    settings.beginGroup(group);
+  }
+
+  foreach (QString key, keys) {
+    qDebug() << "removing:" << key;
+    settings.remove(key);
+  }
+  if (!group.isEmpty()) {
+    settings.endGroup();
+  }
+
+  settings.sync();
+}
+
+QVariantMap SettingsHandler::getChangeset(QVariantMap newSettings, QString group) {
+  const QVariantMap oldSettings = getSettings(group);
+
+  QVariantMap result;
+
+  for (QVariantMap::const_iterator iter = newSettings.begin(); iter != newSettings.end(); ++iter) {
+    qDebug() << iter.key() << iter.value();
+    QString key       = iter.key();
+    QVariant newValue = iter.value();
+    QVariant oldValue = oldSettings.value(key);
+
+    if (oldValue == newValue) {
+      qInfo() << "oldValue == newValue -> ignoring...";
+    } else {
+      const QString debugString =
+          QString("oldValue != newValue -> adding '%1' to changeset...").arg(key);
+      qInfo() << debugString;
+      result.insert(key, newValue);
+    }
+  }
+
+  return result;
+}
+
 SettingsHandler::SettingsHandler() {}

data/settingshandler.h

@@ -7,6 +7,9 @@ class SettingsHandler {
  public:
   static QVariantMap getSettings(QString group = "");
   static void saveSettings(QVariantMap settingMap, QString group = "");
+  static void deleteSettings(QStringList keys, QString group = "");
+
+  static QVariantMap getChangeset(QVariantMap newSettings, QString group = "");
 
  private:
   SettingsHandler();

formats/csvparser.cpp

@@ -52,7 +52,11 @@ bool CsvParser::isCsvCompatible(const rapidcsv::Document& doc) {
   qInfo() << "Checking CSV document for compatiblity...";
   const std::vector<std::string> columnNames = doc.GetColumnNames();
   for (const QString& headerName : GET_HEADER_NAMES()) {
-    bool isHeaderNameFound = false;
+    if (OPTIONAL_CSV_HEADERS.contains(headerName)) {
+      /// no need to have a column for the optional values
+      continue;
+    }
+    /// these column must be found in CSV document
     if (std::find(columnNames.begin(), columnNames.end(), headerName) != columnNames.end()) {
       qDebug() << QString("Header found in column names: %1").arg(headerName);
     } else {
@@ -86,14 +90,13 @@ QHash<QString, std::vector<std::string>> CsvParser::extractColumnValues(
     const rapidcsv::Document& doc) {
   QHash<QString, std::vector<std::string>> columnValueMap;
   for (const QString& columnName : headerNames) {
-    // TODO add support for optional columns
+    if (OPTIONAL_CSV_HEADERS.contains(columnName)) {
-    // if (optionalCsvHeaderNames.contains(columnName)) {
+      const std::vector<std::string> columnNames = doc.GetColumnNames();
-    //   const std::vector<std::string> columnNames = doc.GetColumnNames();
+      int columnIdx                              = doc.GetColumnIdx(columnName.toStdString());
-    //   int columnIdx                              = doc.GetColumnIdx(columnName.toStdString());
+      if (columnIdx == -1) {
-    //   if (columnIdx == -1) {
+        continue;
-    //     continue;
+      }
-    //   }
+    }
-    // }
     const std::vector<std::string> columnValues =
         doc.GetColumn<std::string>(columnName.toStdString());
     columnValueMap.insert(columnName, columnValues);

formats/jsonparser.cpp

@@ -74,6 +74,30 @@ QJsonObject JsonParser::itemValuesToJsonObject(const ModelItemValues& itemValues
   return result;
 }
 
+QByteArray JsonParser::userCredentialsToJsonDocument(const QString email, const QString password) {
+  QJsonDocument jsonDoc;
+  QJsonObject rootObject;
+
+  QJsonObject userObject;
+  userObject.insert("email", email);
+  userObject.insert("password", password);
+
+  rootObject.insert("user", userObject);
+  jsonDoc.setObject(rootObject);
+
+  return jsonDoc.toJson(QJsonDocument::Compact);
+}
+
+QVariant JsonParser::getValueFromJson(const QByteArray& jsonData,
+                                      const QString key,
+                                      const QString objectName) {
+  QJsonDocument doc      = QJsonDocument::fromJson(jsonData);
+  QJsonObject rootObject = doc.object();
+  QJsonObject userObject = rootObject.value(objectName).toObject();
+
+  return userObject.value(key);
+}
+
 JsonParser::JsonParser() {}
 
 QJsonArray JsonParser::extractItemArray(const QJsonDocument& doc, const QString& objectName) {
@@ -98,12 +122,16 @@ ModelItemValues JsonParser::jsonObjectToItemValues(const QJsonObject& itemJsonOb
     values.insert(keyValuePair.first, keyValuePair.second);
   }
 
-  QListIterator<UserRoles> i(USER_FACING_ROLES);
+  for (auto iter = itemJsonObject.constBegin(), end = itemJsonObject.constEnd(); iter != end;
-  while (i.hasNext()) {
+       ++iter) {
-    const UserRoles role                  = i.next();
+    const QString roleName = iter.key();
-    std::pair<int, QVariant> keyValuePair = getKeyValuePair(itemJsonObject, role);
+    if (ROLE_NAMES.values().contains(roleName)) {
-    values.insert(keyValuePair.first, keyValuePair.second);
+      const int role                        = ROLE_NAMES.key(roleName.toLatin1());
+      std::pair<int, QVariant> keyValuePair = getKeyValuePair(itemJsonObject, role);
+      values.insert(keyValuePair.first, keyValuePair.second);
+    }
   }
+
   return values;
 }
 

formats/jsonparser.h

@@ -20,6 +20,11 @@ class JsonParser {
                                          const QString& objectName = "");
   static QJsonObject itemValuesToJsonObject(const ModelItemValues& itemValues);
 
+  static QByteArray userCredentialsToJsonDocument(const QString email, const QString password);
+  static QVariant getValueFromJson(const QByteArray& jsonData,
+                                   const QString key,
+                                   const QString objectName = "");
+
  private:
   explicit JsonParser();
 

genericcore.cpp

@@ -14,6 +14,7 @@
 #include "constants.h"
 #include "data/filehandler.h"
 #include "data/settingshandler.h"
+#include "formats/jsonparser.h"
 #include "model/generalsortfiltermodel.h"
 #include "model/metadata.h"
 #include "model/tablemodel.h"
@@ -39,7 +40,7 @@ GenericCore::GenericCore() {
   m_modelUndoStack = new QUndoStack(this);
 
   setupModels();
-  setupServerConfiguration();
+  setupServerCommunication();
 }
 
 GenericCore::~GenericCore() { qDebug() << "Destroying core..."; }
@@ -98,6 +99,67 @@ std::shared_ptr<GeneralSortFilterModel> GenericCore::getSortFilterModel() const
   return m_sortFilterModel;
 }
 
+void GenericCore::importCSVFile(const QString& filePath) {
+  qInfo() << "importing items from CSV...";
+  qDebug() << "filePath:" << filePath;
+  const QList<ModelItemValues> itemValuesList = FileHandler::getItemValuesFromCSVFile(filePath);
+  if (itemValuesList.isEmpty()) {
+    qDebug() << "No items found. Doing nothing...";
+    displayStatusMessage("No items found in CSV file. Either empty or not compatible.");
+    return;
+  }
+  // qDebug() << "CSV file content:" << itemValuesList;
+  m_mainModel->insertItems(m_mainModel->rowCount(), itemValuesList);
+  const QString messageString =
+      QString(tr("Imported %1 item(s) from CSV file.")).arg(itemValuesList.size());
+  displayStatusMessage(messageString);
+}
+
+bool GenericCore::exportCSVFile(const QString& filePath) {
+  qInfo() << "exporting items to CSV...";
+  qDebug() << "filePath:" << filePath;
+  const QList<QStringList> itemsAsStringLists = m_mainModel->getItemsAsStringLists();
+  return FileHandler::exportToCSVFile(itemsAsStringLists, filePath);
+}
+
+QVariantMap GenericCore::getSettings(QString group) const {
+  return SettingsHandler::getSettings(group);
+}
+
+void GenericCore::applySettings(QVariantMap settingMap, QString group) {
+  const QVariantMap changeset = SettingsHandler::getChangeset(settingMap, group);
+
+  if (changeset.isEmpty()) {
+    return;
+  }
+
+  if (group == "Server") {
+    const bool urlChanged      = changeset.contains("url");
+    const bool emailChanged    = changeset.contains("email");
+    const bool passwordChanged = changeset.contains("password");
+    if (urlChanged || emailChanged || passwordChanged) {
+      if (!changeset.contains("authToken")) {
+        qInfo() << "Account settings changed, but no new token present. Deleting old token...";
+        SettingsHandler::deleteSettings({"authToken"}, "Server");
+      }
+    }
+  }
+
+  SettingsHandler::saveSettings(settingMap, group);
+
+  if (group == "Server") {
+    applyServerConfiguration();
+  }
+}
+
+bool GenericCore::isSyncServerSetup() const {
+  if (m_serverCommunicator) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
 /**
  * Save items to default file (in standard location).
  * @brief GenericCore::saveItems Saves item fo file.
@@ -115,48 +177,32 @@ void GenericCore::saveItems() {
   }
 }
 
-void GenericCore::importCSVFile(const QString& filePath) {
+void GenericCore::onLoginSuccessful(const QByteArray jsonData) {
-  qInfo() << "importing items from CSV...";
+  emit displayStatusMessage("Login successful.");
-  qDebug() << "filePath:" << filePath;
+  qInfo() << "Storing auth token...";
-  const QList<ModelItemValues> itemValuesList = FileHandler::getItemValuesFromCSVFile(filePath);
+  QString token = JsonParser::getValueFromJson(jsonData, "token", "user").toString();
-  // TODO inform UI on errors
+  SettingsHandler::saveSettings({{"authToken", token}}, "Server");
-  if (itemValuesList.isEmpty()) {
+  applyServerConfiguration();
-    qDebug() << "No items found. Doing nothing...";
-    return;
-  }
-  // qDebug() << "CSV file content:" << itemValuesList;
-  m_mainModel->insertItems(m_mainModel->rowCount(), itemValuesList);
 }
 
-bool GenericCore::exportCSVFile(const QString& filePath) {
+void GenericCore::onLoginFailure(const QString errorString) {
-  qInfo() << "exporting items to CSV...";
+  emit displayStatusMessage(QString("Error: %1").arg(errorString));
-  qDebug() << "filePath:" << filePath;
-  const QList<QStringList> itemsAsStringLists = m_mainModel->getItemsAsStringLists();
-  return FileHandler::exportToCSVFile(itemsAsStringLists, filePath);
 }
 
-QVariantMap GenericCore::getSettings(QString group) const {
+void GenericCore::onNotAuthorized(const QString /*path*/) {
-  return SettingsHandler::getSettings(group);
+  const QVariantMap serverSettings = SettingsHandler::getSettings("Server");
-}
+  const QString tokenValue         = serverSettings.value("authToken").toString();
-
+  if (!tokenValue.isEmpty()) {
-void GenericCore::applySettings(QVariantMap settingMap, QString group) {
+    SettingsHandler::deleteSettings({"authToken"}, "Server");
-  SettingsHandler::saveSettings(settingMap, group);
+    displayStatusMessage("Not authorized! Deleted token. Please retry.");
-
-  if (group == "Server") {
-    setupServerConfiguration();
-  }
-}
-
-bool GenericCore::isSyncServerSetup() const {
-  if (m_serverCommunicator) {
-    return true;
   } else {
-    return false;
+    displayStatusMessage("Not authorized! But no token was present. Please check your settings.");
   }
+  applyServerConfiguration();
 }
 
 void GenericCore::onSendItemTriggered(const QByteArray& jsonData) {
-  m_serverCommunicator->postItems(jsonData);
+  m_serverCommunicator->sendItem(jsonData);
 }
 
 void GenericCore::onItemsFetched(const QByteArray jsonData) {
@@ -170,20 +216,20 @@ void GenericCore::onItemsFetchFailure(const QString errorString) {
   emit displayStatusMessage(QString("Error: %1").arg(errorString));
 }
 
-void GenericCore::onPostRequestSuccessful(const QByteArray responseData) {
+void GenericCore::onSendItemSuccessful(const QByteArray responseData) {
   const QString message = m_mainModel->updateItemsFromJson(responseData);
   emit displayStatusMessage(message);
 }
 
-void GenericCore::onPostRequestFailure(const QString errorString) {
+void GenericCore::onSendItemFailure(const QString errorString) {
   emit displayStatusMessage(QString("Error: %1").arg(errorString));
 }
 
-void GenericCore::onDeleteRequestSuccessful(const QByteArray responseData) {
+void GenericCore::onDeleteItemSuccessful(const QByteArray responseData) {
   qWarning() << "TODO: Process success response!!!";
 }
 
-void GenericCore::onDeleteRequestFailure(const QString errorString) {
+void GenericCore::onDeleteItemFailure(const QString errorString) {
   qWarning() << "TODO: Process error response!!!";
 }
 
@@ -244,28 +290,37 @@ QString GenericCore::getMaintenanceToolFilePath() const {
   return filePath;
 }
 
-void GenericCore::setupServerConfiguration() {
+void GenericCore::setupServerCommunication() {
   m_serverCommunicator = make_unique<ServerCommunicator>(this);
   /// request connections
   connect(this, &GenericCore::fetchItemsFromServer, m_serverCommunicator.get(),
           &ServerCommunicator::fetchItems);
-  connect(this, &GenericCore::postItemToServer, this, &GenericCore::onSendItemTriggered);
+  connect(this, &GenericCore::sendItemToServer, m_serverCommunicator.get(),
+          &ServerCommunicator::sendItem);
   connect(this, &GenericCore::deleteItemFromServer, m_serverCommunicator.get(),
           &ServerCommunicator::deleteItem);
 
   /// response connections
+  connect(m_serverCommunicator.get(), &ServerCommunicator::loginSuccessful, this,
+          &GenericCore::onLoginSuccessful);
+  connect(m_serverCommunicator.get(), &ServerCommunicator::loginFailure, this,
+          &GenericCore::onLoginFailure);
+
+  connect(m_serverCommunicator.get(), &ServerCommunicator::notAuthorized, this,
+          &GenericCore::onNotAuthorized);
+
   connect(m_serverCommunicator.get(), &ServerCommunicator::itemsFetched, this,
           &GenericCore::onItemsFetched);
   connect(m_serverCommunicator.get(), &ServerCommunicator::itemsFetchFailure, this,
           &GenericCore::onItemsFetchFailure);
-  connect(m_serverCommunicator.get(), &ServerCommunicator::postRequestSuccessful, this,
+  connect(m_serverCommunicator.get(), &ServerCommunicator::sendItemSuccessful, this,
-          &GenericCore::onPostRequestSuccessful);
+          &GenericCore::onSendItemSuccessful);
-  connect(m_serverCommunicator.get(), &ServerCommunicator::postRequestFailure, this,
+  connect(m_serverCommunicator.get(), &ServerCommunicator::sendItemFailure, this,
-          &GenericCore::onPostRequestFailure);
+          &GenericCore::onSendItemFailure);
-  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteRequestSuccessful, this,
+  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteItemSuccessful, this,
-          &GenericCore::onDeleteRequestSuccessful);
+          &GenericCore::onDeleteItemSuccessful);
-  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteRequestFailure, this,
+  connect(m_serverCommunicator.get(), &ServerCommunicator::deleteItemFailure, this,
-          &GenericCore::onDeleteRequestFailure);
+          &GenericCore::onDeleteItemFailure);
 
   applyServerConfiguration();
 }
@@ -273,9 +328,14 @@ void GenericCore::setupServerConfiguration() {
 void GenericCore::applyServerConfiguration() {
   const QVariantMap serverSettings = SettingsHandler::getSettings("Server");
   const QString urlValue           = serverSettings.value("url").toString();
-  if (!urlValue.isEmpty()) {
+  if (urlValue.isEmpty()) {
-    const QString emailValue    = serverSettings.value("email").toString();
+    SettingsHandler::deleteSettings({"authToken"}, "Server");
-    const QString passwordValue = serverSettings.value("password").toString();
+  } else {
-    m_serverCommunicator->setServerConfiguration(urlValue, emailValue, passwordValue);
+    /// urlValue in NOT empty
+    const QString emailValue     = serverSettings.value("email").toString();
+    const QString passwordValue  = serverSettings.value("password").toString();
+    const QString authTokenValue = serverSettings.value("authToken").toString();
+    m_serverCommunicator->setServerConfiguration(urlValue, emailValue, passwordValue,
+                                                 authTokenValue);
   }
 }

genericcore.h

@@ -29,7 +29,6 @@ class GenericCore : public QObject {
   std::shared_ptr<TableModel> getModel() const;
   std::shared_ptr<GeneralSortFilterModel> getSortFilterModel() const;
 
-  void saveItems();
   void importCSVFile(const QString& filePath);
   bool exportCSVFile(const QString& filePath);
 
@@ -38,18 +37,25 @@ class GenericCore : public QObject {
   bool isSyncServerSetup() const;
 
  public slots:
+  void saveItems();
+
+  void onLoginSuccessful(const QByteArray jsonData);
+  void onLoginFailure(const QString errorString);
+
+  void onNotAuthorized(const QString /*path*/);
+
   void onSendItemTriggered(const QByteArray& jsonData);
   void onItemsFetched(const QByteArray jsonData);
   void onItemsFetchFailure(const QString errorString);
-  void onPostRequestSuccessful(const QByteArray responseData);
+  void onSendItemSuccessful(const QByteArray responseData);
-  void onPostRequestFailure(const QString errorString);
+  void onSendItemFailure(const QString errorString);
-  void onDeleteRequestSuccessful(const QByteArray responseData);
+  void onDeleteItemSuccessful(const QByteArray responseData);
-  void onDeleteRequestFailure(const QString errorString);
+  void onDeleteItemFailure(const QString errorString);
 
  signals:
   void displayStatusMessage(QString message);
   void fetchItemsFromServer();
-  void postItemToServer(const QByteArray& jsonData);
+  void sendItemToServer(const QByteArray& jsonData);
   void deleteItemFromServer(const QString& id);
 
  private:
@@ -66,7 +72,7 @@ class GenericCore : public QObject {
 
   /// Network communication
   std::unique_ptr<ServerCommunicator> m_serverCommunicator;
-  void setupServerConfiguration();
+  void setupServerCommunication();
   void applyServerConfiguration();
 };
 

model/generalsortfiltermodel.cpp

@@ -27,6 +27,7 @@ QString GeneralSortFilterModel::getUuid(const QModelIndex& itemIndex) const {
   return data(itemIndex, IdRole).toString();
 }
 
+// NEXT remove when deprecated
 QByteArray GeneralSortFilterModel::jsonDataForServer(const QModelIndex& proxyIndex) {
   const QModelIndex sourceIndex = mapToSource(proxyIndex);
   return m_tableModel->jsonDataForServer(sourceIndex);

model/metadata.h

@@ -25,21 +25,28 @@ enum UserRoles {
 
 static UserRoles DEFAULT_ROLE = NameRole;
 // TODO ?rename USER_FACING_ROLES -> MAIN_ROLES ?
-static QList<UserRoles> USER_FACING_ROLES = {NameRole, DescriptionRole, InfoRole,
+static QList<UserRoles> USER_FACING_ROLES = {NameRole,   DescriptionRole, InfoRole, TypeRole,
-                                             TypeRole, AmountRole,      FactorRole};
+                                             AmountRole, FactorRole,      IdRole};
-static QHash<int, QByteArray> ROLE_NAMES  = {
+
-    {NameRole, "name"},         {DescriptionRole, "description"},
+static QList<UserRoles> READ_ONLY_ROLES = {IdRole};
-    {InfoRole, "info"},         {TypeRole, "type"},
+
-    {AmountRole, "amount"},     {FactorRole, "factor"},
+static QHash<int, QByteArray> ROLE_NAMES = {
-    {ToStringRole, "ToString"}, {IdRole, "id"}};
+    {NameRole, "name"},           {DescriptionRole, "description"},
+    {InfoRole, "info"},           {TypeRole, "type"},
+    {AmountRole, "amount"},       {FactorRole, "factor"},
+    {ToStringRole, "ToString"},   {IdRole, "id"},
+    {Qt::DisplayRole, "display"}, {Qt::EditRole, "edit"}};
 
 static QList<UserRoles> STRING_ROLES = {NameRole, DescriptionRole, InfoRole, IdRole};
 static QList<UserRoles> INT_ROLES    = {AmountRole};
 static QList<UserRoles> DOUBLE_ROLES = {FactorRole};
+static QList<UserRoles> NUMBER_ROLES = INT_ROLES + DOUBLE_ROLES;
 
 static const QList<UserRoles> TYPE_ROLES = {TypeRole};
 static const QList<QString> TYPES        = {"A", "B", "C", ""};
 
+static const QStringList OPTIONAL_CSV_HEADERS = {"description", "info"};
+
 /// JSON keys
 static const QString ITEMS_KEY_STRING = "items";
 static const QString ITEM_KEY_STRING  = "item";
@@ -68,6 +75,9 @@ static UserRoles GET_ROLE_FOR_COLUMN(const int column) {
     case 5:
       return FactorRole;
       break;
+    case 6:
+      return IdRole;
+      break;
     default:
       qWarning() << QString("No role found for column %1! Returning 'NameRole'...").arg(column);
       return NameRole;
@@ -86,4 +96,10 @@ static QList<QString> GET_HEADER_NAMES() {
   return result;
 }
 
+static QString GET_HEADER_FOR_COLUMN(const int column) {
+  const UserRoles role     = GET_ROLE_FOR_COLUMN(column);
+  const QString headerName = ROLE_NAMES.value(role);
+  return headerName;
+}
+
 #endif  // METADATA_H

model/tablemodel.cpp

@@ -40,10 +40,19 @@ TableModel::TableModel(QUndoStack* undoStack, QObject* parent)
     , m_undoStack(undoStack) {}
 
 Qt::ItemFlags TableModel::flags(const QModelIndex& index) const {
+  Qt::ItemFlags result = QAbstractTableModel::flags(index);
   if (!index.isValid()) {
-    return QAbstractTableModel::flags(index);
+    return result;
   }
-  return Qt::ItemIsEditable | QAbstractTableModel::flags(index);
+
+  const int column        = index.column();
+  const int roleForColumn = GET_ROLE_FOR_COLUMN(column);
+  /// roles which aren't editable by the user
+  if (READ_ONLY_ROLES.contains(roleForColumn)) {
+    return result;
+  }
+
+  return result | Qt::ItemIsEditable;
 }
 
 QHash<int, QByteArray> TableModel::roleNames() const { return ROLE_NAMES; }
@@ -104,10 +113,9 @@ QVariant TableModel::headerData(int section, Qt::Orientation orientation, int ro
 }
 
 bool TableModel::setData(const QModelIndex& index, const QVariant& value, int role) {
-  if (role == Qt::EditRole && checkIndex(index)) {
+  if (checkIndex(index)) {
-    const int column        = index.column();
+    const int adjustedRole = getAppropriateRoleForIndex(index, role);
-    const int roleForColumn = GET_ROLE_FOR_COLUMN(column);
+    return setItemData(index, {{adjustedRole, value}});
-    return setItemData(index, {{roleForColumn, value}});
   }
   return false;
 }
@@ -303,12 +311,6 @@ QMap<int, QVariant> TableModel::onlyChangedValues(const QModelIndex& index,
     const QVariant oldValue = index.data(role);
     // TODO check if role is a editable role?
     if (oldValue != newValue) {
-      bool emptyValueIsEqualToZero = isEmptyValueEqualToZero(role);
-      if (emptyValueIsEqualToZero && oldValue == QVariant() && newValue == 0) {
-        qDebug() << "oldValue:" << oldValue << "& newValue:" << newValue
-                 << "mean the same. Ignoring...";
-        continue;
-      }
       qDebug() << "oldValue:" << oldValue << "!= newValue:" << newValue;
       result.insert(role, newValue);
     } else {
@@ -328,9 +330,26 @@ bool TableModel::isEmptyValueEqualToZero(const int role) const {
   }
 }
 
+int TableModel::getAppropriateRoleForIndex(const QModelIndex& index, const int role) const {
+  /// cases:
+  /// 1. Qt::DisplayRole, Qt::EditRole
+  ///   -> get role for column
+  /// 2. other roles
+  ///   -> use role as given
+  const int column        = index.column();
+  const int roleForColumn = GET_ROLE_FOR_COLUMN(column);
+  switch (role) {
+    case Qt::DisplayRole:
+    case Qt::EditRole:
+      return roleForColumn;
+      break;
+    default:
+      return role;
+      break;
+  }
+}
+
 QModelIndex TableModel::searchItemIndex(const ModelItemValues givenItemValues) const {
-  // iterate over indexes to search item : see searchItem(...);
-  // for (const shared_ptr<ModelItem>& item : m_items) {
   for (int row = 0; row < rowCount(); ++row) {
     qDebug() << "Processing item at row" << row << "...";
     QModelIndex itemIndex = index(row, 0);

model/tablemodel.h

@@ -71,6 +71,7 @@ class TableModel : public QAbstractTableModel {
   QMap<int, QVariant> onlyChangedValues(const QModelIndex& index,
                                         const QMap<int, QVariant>& roleValueMap) const;
   bool isEmptyValueEqualToZero(const int role) const;
+  int getAppropriateRoleForIndex(const QModelIndex& index, const int role) const;
   QModelIndex searchItemIndex(const ModelItemValues givenItemValues) const;
   bool isItemEqualToItemValues(const QModelIndex& itemIndex,
                                const ModelItemValues givenItemValues) const;

network/apiroutes.h

@@ -7,6 +7,8 @@
 
 static const QString apiPrefix = "/api/";
 
+static const QString ROUTE_LOG_IN = apiPrefix + "log_in";
+
 static const QString ROUTE_ITEMS = apiPrefix + "items";
 
 #endif  // APIROUTES_H

network/servercommunicator.cpp

@@ -6,6 +6,8 @@
 #include <QJsonObject>
 #include <QRestReply>
 
+#include "../formats/jsonparser.h"
+
 using namespace Qt::StringLiterals;
 
 ServerCommunicator::ServerCommunicator(QObject* parent)
@@ -36,71 +38,186 @@ void ServerCommunicator::setUrl(const QUrl& url) {
   emit urlChanged();
 }
 
-void ServerCommunicator::fetchItems() {
+void ServerCommunicator::setServerConfiguration(const QString url,
-  /// Set up a GET request
+                                                const QString email,
-  m_restManager->get(m_serviceApi->createRequest(ROUTE_ITEMS), this, [this](QRestReply& reply) {
+                                                const QString password,
-    if (reply.isSuccess()) {
+                                                const QString authToken) {
-      qInfo() << "Fetching items successful.";
+  setUrl(url);
-      const QJsonDocument doc = reply.readJson().value();
-      emit itemsFetched(doc.toJson());
 
+  m_email     = email;
+  m_password  = password;
+  m_authToken = authToken;
+
+  if (authToken.isEmpty()) {
+    if (validLoginCredentials()) {
+      const QByteArray userCredentials =
+          JsonParser::userCredentialsToJsonDocument(m_email, m_password);
+      sendPostRequest(ROUTE_LOG_IN, userCredentials);
+    }
+  } else {
+    /// authToken not empty:
+    m_serviceApi->setBearerToken(authToken.toLatin1());
+  }
+}
+
+void ServerCommunicator::fetchItems() { sendGetRequest(ROUTE_ITEMS); }
+
+void ServerCommunicator::sendItem(const QByteArray& jsonData) {
+  sendPostRequest(ROUTE_ITEMS, jsonData);
+}
+
+void ServerCommunicator::deleteItem(const QString& id) {
+  const QString path = QString("%1/%2").arg(ROUTE_ITEMS, id);
+  sendDeleteRequest(path);
+}
+
+bool ServerCommunicator::validLoginCredentials() {
+  if (url().isEmpty()) {
+    return false;
+  }
+  if (m_email.isEmpty()) {
+    return false;
+  }
+  if (m_password.isEmpty()) {
+    return false;
+  }
+  return true;
+}
+
+void ServerCommunicator::sendGetRequest(const QString& path) {
+  // TODO check for valid path, instead of emptiness
+  if (path.isEmpty()) {
+    qDebug() << "Empty path -> Not sending a request.";
+    return;
+  }
+
+  const QNetworkRequest request = m_serviceApi->createRequest(path);
+  m_restManager->get(request, this, [this, path](QRestReply& reply) {
+    if (reply.isSuccess()) {
+      qInfo() << "Request successful.";
+      const QJsonDocument doc = reply.readJson().value();
+      onGetReplySuccessful(path, doc);
     } else {
       if (reply.hasError()) {
         const QString errorString = reply.errorString();
-        qCritical() << "ERROR:" << errorString;
+        qWarning() << "Network error:" << errorString;
-        emit itemsFetchFailure(errorString);
+        onGetReplyFailure(path, errorString);
       } else {
         int statusCode = reply.httpStatus();
-        qCritical() << "ERROR:" << statusCode;
+        qWarning() << "Request not successful:" << statusCode;
-        emit itemsFetchFailure(QString::number(statusCode));
+        if (statusCode == 401) {
-        emit itemsFetchFailure(QString("HTTP status code: %1").arg(statusCode));
+          notAuthorized(path);
+        } else {
+          onGetReplyFailure(path, QString("HTTP status code: %1").arg(statusCode));
+        }
       }
     }
   });
 }
 
-void ServerCommunicator::postItems(const QByteArray& jsonData) {
+void ServerCommunicator::onGetReplySuccessful(const QString& path, const QJsonDocument doc) {
-  QNetworkReply* reply = m_restManager->post(m_serviceApi->createRequest(ROUTE_ITEMS), jsonData);
+  if (path == ROUTE_ITEMS) {
+    emit itemsFetched(doc.toJson());
+  } else {
+    qWarning() << "Can't match request path:" << path;
+  }
+}
 
-  QObject::connect(reply, &QNetworkReply::finished, [=]() {
+void ServerCommunicator::onGetReplyFailure(const QString& path, const QString errorString) {
-    if (reply->error() == QNetworkReply::NoError) {
+  if (path == ROUTE_ITEMS) {
-      QByteArray responseData = reply->readAll();
+    emit itemsFetchFailure(errorString);
-      const QString message   = QString("POST successful! Response: %1").arg(responseData);
+  } else {
-      qInfo() << message;
+    qWarning() << "Can't match request path:" << path;
-      emit postRequestSuccessful(responseData);
+  }
+}
+
+void ServerCommunicator::sendPostRequest(const QString& path, const QByteArray data) {
+  const QNetworkRequest request = m_serviceApi->createRequest(path);
+
+  m_restManager->post(request, data, this, [this, path](QRestReply& reply) {
+    if (reply.isSuccess()) {
+      int statusCode = reply.httpStatus();
+      qInfo() << "Request successful. Status code:" << statusCode;
+      const QJsonDocument doc = reply.readJson().value();
+      onPostReplySuccessful(path, doc);
     } else {
-      const QString message = QString("Error: %1").arg(reply->errorString());
+      if (reply.hasError()) {
-      qDebug() << message;
+        const QString errorString = reply.errorString();
-      emit postRequestFailure(message);
+        qWarning() << "Network error:" << errorString;
+        onPostReplyFailure(path, errorString);
+      } else {
+        int statusCode = reply.httpStatus();
+        qWarning() << "Request not successful:" << statusCode;
+        qInfo() << "Content:" << reply.readJson();
+        if (statusCode == 401) {
+          notAuthorized(path);
+        } else {
+          onPostReplyFailure(path, QString("HTTP status code: %1").arg(statusCode));
+        }
+      }
     }
-    reply->deleteLater();
   });
 }
 
-void ServerCommunicator::deleteItem(const QString& id) {
+void ServerCommunicator::onPostReplySuccessful(const QString& path, const QJsonDocument doc) {
-  const QString deleteRoute = QString("%1/%2").arg(ROUTE_ITEMS, id);
+  if (path == ROUTE_ITEMS) {
-  QNetworkReply* reply = m_restManager->deleteResource(m_serviceApi->createRequest(deleteRoute));
+    emit sendItemSuccessful(doc.toJson());
+  } else if (path == ROUTE_LOG_IN) {
+    qCritical() << "Login success:" << doc.toJson(QJsonDocument::Compact);
+    emit loginSuccessful(doc.toJson(QJsonDocument::Compact));
+  } else {
+    qWarning() << "Can't match request path:" << path;
+  }
+}
 
-  QObject::connect(reply, &QNetworkReply::finished, [=]() {
+void ServerCommunicator::onPostReplyFailure(const QString& path, const QString errorString) {
-    if (reply->error() == QNetworkReply::NoError) {
+  if (path == ROUTE_ITEMS) {
-      QByteArray responseData = reply->readAll();
+    emit sendItemFailure(errorString);
-      const QString message   = QString("DELETE successful! Response: %1").arg(responseData);
+  } else if (path == ROUTE_LOG_IN) {
-      qInfo() << message;
+    qCritical() << "Login failure:" << errorString;
-      emit deleteRequestSuccessful(responseData);
+    emit loginFailure(errorString);
+  } else {
+    qWarning() << "Can't match request path:" << path;
+  }
+}
+
+void ServerCommunicator::sendDeleteRequest(const QString& path) {
+  const QNetworkRequest request = m_serviceApi->createRequest(path);
+  m_restManager->deleteResource(request, this, [this, path](QRestReply& reply) {
+    if (reply.isSuccess()) {
+      qInfo() << "Request successful.";
+      const QJsonDocument doc = reply.readJson().value();
+      onDeleteReplySuccessful(path, doc);
     } else {
-      const QString message = QString("Error: %1").arg(reply->errorString());
+      if (reply.hasError()) {
-      qDebug() << message;
+        const QString errorString = reply.errorString();
-      emit deleteRequestFailure(message);
+        qWarning() << "Network error:" << errorString;
+        onDeleteReplyFailure(path, errorString);
+      } else {
+        int statusCode = reply.httpStatus();
+        qWarning() << "Request not successful:" << statusCode;
+        if (statusCode == 401) {
+          notAuthorized(path);
+        } else {
+          onDeleteReplyFailure(path, QString("HTTP status code: %1").arg(statusCode));
+        }
+      }
     }
-    reply->deleteLater();
   });
 }
 
-void ServerCommunicator::setServerConfiguration(const QString url,
+void ServerCommunicator::onDeleteReplySuccessful(const QString& path, const QJsonDocument doc) {
-                                                const QString email,
+  if (path.startsWith(ROUTE_ITEMS)) {
-                                                const QString password) {
+    emit deleteItemSuccessful(doc.toJson());
-  setUrl(url);
+  } else {
-
+    qWarning() << "Can't match request path:" << path;
-  m_email    = email;
+  }
-  m_password = password;
+}
+
+void ServerCommunicator::onDeleteReplyFailure(const QString& path, const QString errorString) {
+  if (path.startsWith(ROUTE_ITEMS)) {
+    emit deleteItemFailure(errorString);
+  } else {
+    qWarning() << "Can't match request path:" << path;
+  }
 }

network/servercommunicator.h

@@ -16,22 +16,33 @@ class ServerCommunicator : public QObject {
   QUrl url() const;
   void setUrl(const QUrl& url);
 
-  void setServerConfiguration(const QString url, const QString email, const QString password);
+  void setServerConfiguration(const QString url,
+                              const QString email,
+                              const QString password,
+                              const QString authToken);
 
  public slots:
   void fetchItems();
-  void postItems(const QByteArray& jsonData);
+  void sendItem(const QByteArray& jsonData);
   void deleteItem(const QString& id);
+  // NEXT editItem(const QByteArray& jsonData)
 
  signals:
   void urlChanged();
 
+  void loginSuccessful(const QByteArray responseData);
+  void loginFailure(const QString errorString);
+
+  void notAuthorized(const QString path);
+
   void itemsFetched(const QByteArray jsonDoc);
   void itemsFetchFailure(const QString errorString);
-  void postRequestSuccessful(const QByteArray responseData);
+
-  void postRequestFailure(const QString errorString);
+  void sendItemSuccessful(const QByteArray responseData);
-  void deleteRequestSuccessful(const QByteArray responseData);
+  void sendItemFailure(const QString errorString);
-  void deleteRequestFailure(const QString errorString);
+
+  void deleteItemSuccessful(const QByteArray responseData);
+  void deleteItemFailure(const QString errorString);
 
  private:
   QNetworkAccessManager m_netManager;
@@ -40,7 +51,21 @@ class ServerCommunicator : public QObject {
 
   QString m_email;
   QString m_password;
-  // QString m_authToken;
+  QString m_authToken;
+
+  bool validLoginCredentials();
+
+  void sendGetRequest(const QString& path);
+  void onGetReplySuccessful(const QString& path, const QJsonDocument doc);
+  void onGetReplyFailure(const QString& path, const QString errorString);
+
+  void sendPostRequest(const QString& path, const QByteArray data);
+  void onPostReplySuccessful(const QString& path, const QJsonDocument doc);
+  void onPostReplyFailure(const QString& path, const QString errorString);
+
+  void sendDeleteRequest(const QString& path);
+  void onDeleteReplySuccessful(const QString& path, const QJsonDocument doc);
+  void onDeleteReplyFailure(const QString& path, const QString errorString);
 };
 
 #endif  // SERVERCOMMUNICATOR_H

utils/messagehandler.h

@@ -0,0 +1,164 @@
+#ifndef MESSAGEHANDLER_H
+#define MESSAGEHANDLER_H
+/**
+ * Color and formatting codes
+ * @see: http://misc.flogisoft.com/bash/tip_colors_and_formatting
+ */
+
+#include <QObject>
+
+//  qSetMessagePattern("%{file}(%{line}): %{message}");
+//  qSetMessagePattern("%{type}(%{line}):\t%{message}");
+//  qSetMessagePattern("%{type}%{file}(%{line}):\t%{message}");
+
+void consoleHandlerColoredVerbose(QtMsgType type,
+                                  const QMessageLogContext& context,
+                                  const QString& msg) {
+  QByteArray localMsg = msg.toLocal8Bit();
+  switch (type) {
+    case QtDebugMsg:
+      //      fprintf(stderr, "\033[1;30mDebug: (%s:%u, %s) \t%s\n\033[0m", context.file,
+      //      context.line, context.function, localMsg.constData());  // bold
+      fprintf(stderr, "\033[107;30mDebug: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtInfoMsg:
+      fprintf(stderr, "\033[107;32mInfo:  (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtWarningMsg:
+      fprintf(stderr, "\033[43;30mWarning: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtCriticalMsg:
+      fprintf(stderr, "\033[41;30mCritical: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtFatalMsg:
+      fprintf(stderr, "\033[41;30mFatal: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      abort();
+  }
+}
+
+void consoleHandlerColoredVerboseInDarkTheme(QtMsgType type,
+                                             const QMessageLogContext& context,
+                                             const QString& msg) {
+  QByteArray localMsg = msg.toLocal8Bit();
+  switch (type) {
+    case QtDebugMsg:
+      //      fprintf(stderr, "\033[1;30mDebug: (%s:%u, %s) \t%s\n\033[0m", context.file,
+      //      context.line, context.function, localMsg.constData());  // bold
+      fprintf(stderr, "\033[107;37mDebug: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtInfoMsg:
+      fprintf(stderr, "\033[107;32mInfo:  (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtWarningMsg:
+      fprintf(stderr, "\033[43;30mWarning: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtCriticalMsg:
+      fprintf(stderr, "\033[41;30mCritical: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      break;
+    case QtFatalMsg:
+      fprintf(stderr, "\033[41;30mFatal: (%s:%u, %s) \t%s\n\033[0m", context.file, context.line,
+              context.function, localMsg.constData());
+      abort();
+  }
+}
+
+void consoleHandlerColored(QtMsgType type, const QMessageLogContext& context, const QString& msg) {
+  QByteArray localMsg = msg.toLocal8Bit();
+  switch (type) {
+    case QtDebugMsg:
+      fprintf(stderr, "\033[1;30mDebug: (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtInfoMsg:
+      fprintf(stderr, "\033[0;30mInfo:  (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtWarningMsg:
+      fprintf(stderr, "\033[1;33mWarning: (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtCriticalMsg:
+      fprintf(stderr, "\033[31mCritical: (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      break;
+    case QtFatalMsg:
+      fprintf(stderr, "\033[31mFatal: (%s:%u) \t%s\n\033[0m", context.file, context.line,
+              localMsg.constData());
+      abort();
+  }
+}
+
+void myMessageOutput(QtMsgType type, const QMessageLogContext& context, const QString& msg) {
+  QByteArray localMsg = msg.toLocal8Bit();
+  switch (type) {
+    case QtDebugMsg:
+      fprintf(stderr, "Debug: %s (%s:%u, %s)\n", localMsg.constData(), context.file, context.line,
+              context.function);
+      break;
+    case QtInfoMsg:
+      fprintf(stderr, "Info: %s (%s:%u, %s)\n", localMsg.constData(), context.file, context.line,
+              context.function);
+      break;
+    case QtWarningMsg:
+      fprintf(stderr, "Warning: %s (%s:%u, %s)\n", localMsg.constData(), context.file, context.line,
+              context.function);
+      break;
+    case QtCriticalMsg:
+      fprintf(stderr, "Critical: %s (%s:%u, %s)\n", localMsg.constData(), context.file,
+              context.line, context.function);
+      break;
+    case QtFatalMsg:
+      fprintf(stderr, "Fatal: %s (%s:%u, %s)\n", localMsg.constData(), context.file, context.line,
+              context.function);
+      abort();
+  }
+}
+
+#ifdef Q_OS_ANDROID
+#include <android/log.h>
+
+const char* const applicationName = "Pensieve";
+void androidMessageHandler(QtMsgType type, const QMessageLogContext& context, const QString& msg) {
+  QString report = msg;
+  if (context.file && !QString(context.file).isEmpty()) {
+    report += " in file ";
+    report += QString(context.file);
+    report += " line ";
+    report += QString::number(context.line);
+  }
+  if (context.function && !QString(context.function).isEmpty()) {
+    report += +" function ";
+    report += QString(context.function);
+  }
+  const char* const local = report.toLocal8Bit().constData();
+  switch (type) {
+    case QtDebugMsg:
+      __android_log_write(ANDROID_LOG_DEBUG, applicationName, local);
+      break;
+    case QtInfoMsg:
+      __android_log_write(ANDROID_LOG_INFO, applicationName, local);
+      break;
+    case QtWarningMsg:
+      __android_log_write(ANDROID_LOG_WARN, applicationName, local);
+      break;
+    case QtCriticalMsg:
+      __android_log_write(ANDROID_LOG_ERROR, applicationName, local);
+      break;
+    case QtFatalMsg:
+    default:
+      __android_log_write(ANDROID_LOG_FATAL, applicationName, local);
+      abort();
+  }
+}
+#endif
+
+#endif  // MESSAGEHANDLER_H