Update changelog for v3.2.1

Close #16 Remove 'exclusive' parameter from a PyQt function. Also update readme.md
Merge commit '5af0faaa65432db23d391ee65a6fe9f85021f032'
2020-04-25 15:42:00 +02:00 · 2020-04-18 21:43:03 +02:00 · 2020-04-18 21:04:16 +02:00 · 2020-04-18 21:02:28 +02:00 · 2020-04-15 20:23:26 +02:00 · 2020-04-15 20:14:44 +02:00
22 changed files with 684 additions and 299 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
-__pycache__
+__PYCache__
 Data
 src/themes/__current_theme
 designer.bat
@@ -7,3 +7,5 @@ launch.bat
 .code-workspace
 spec_files/**/output
 *.txt
+*.json
+info.log
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,26 @@ The first release is [3.0.0] because this is actually the third major version (c
 ## [Unreleased]
 ...

+## [3.2.1] - 2020-04-25
+### Added
+- Add some basic logging to the application. Also for severe errors, track them in info.log file in local folder.
+- Add Raspberry PI support ([#18](https://github.com/AresValley/Artemis/pull/18), [#20](https://github.com/AresValley/Artemis/pull/20))
+
+### Fixed
+- Support new `JSON` format for some forecast data ([#21](https://github.com/AresValley/Artemis/pull/14)).
+- Fixed categorization for very low x-ray flux according to NOAA format.
+- Remove the `exclusive` parameter in a PyQt function ([#16](https://github.com/AresValley/Artemis/pull/16)).
+  
+
+## [3.2.0] - 2019-12-14
+
+### Added
+- The default font can be changed ([#14](https://github.com/AresValley/Artemis/pull/14)).
+- Move `Themes` into `Settings`.
+- Better settings management in `settings.json`.
+
+### Fixed
+- Fix a bug in the space weather. An inactive k-index caused a crash.

 ## [3.1.0] - 2019-10-21
 ### Added
@@ -36,7 +56,9 @@ First release.


 <!-- Links definitions -->
-[Unreleased]: https://github.com/AresValley/Artemis/compare/v3.1.0...HEAD
+[Unreleased]: https://github.com/AresValley/Artemis/compare/v3.2.1...HEAD
+[3.2.1]: https://github.com/AresValley/Artemis/compare/v3.2.0...v3.2.1
+[3.2.0]: https://github.com/AresValley/Artemis/compare/v3.1.0...v3.2.0
 [3.1.0]: https://github.com/AresValley/Artemis/compare/v3.0.1...v3.1.0
 [3.0.1]: https://github.com/AresValley/Artemis/compare/v3.0.0...v3.0.1
 [3.0.0]: https://github.com/AresValley/Artemis/releases/tag/v3.0.0
--- a/README.md
+++ b/README.md
@@ -147,7 +147,7 @@ The only folder with the pre-built package is the `themes` one. In this way the
 Some of the available themes were adapted from https://github.com/GTRONICK/QSS.

 ## License
-This program (ARTEMIS 3, 2014-2019) 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.
+This program (ARTEMIS 3, 2014-2020) 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.

 This program 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.

@@ -159,5 +159,6 @@ You should have received a copy of the GNU General Public License along with thi
 * **Paolo Romani (IZ1MLL)** - *Lead β Tester, RF specialist*
 * **Carl Colena** - *Sigidwiki admin, β Tester, Signals expert*
 * [**Marco Bortoli**](https://github.com/marbort "GitHub profile") - *macOS deployment, β Tester*
+* [**Eric Wiessner (KI7POL)**](https://github.com/WheezyE "GitHub profile") - *ARM port (Raspberry Pi3B+ and Pi4B)*
 * [**Pierpaolo Pravatto**](https://github.com/ppravatto "GitHub profile") - *Wiki page, β Tester*
 * [**Francesco Capostagno**](https://github.com/fcapostagno "GitHub profile"), **Luca**, **Pietro** - *β Tester*
--- a/src/acfvalue.py
+++ b/src/acfvalue.py
@@ -28,14 +28,13 @@ class ACFValue:
                self._description = ""
                self._value = value
                self._string = self._value
-            try:
+            if self._value.isdigit():
                self.numeric_value = float(self._value)
-            except Exception:
-                self.is_numeric = False
-                self.numeric_value = 0.0
-            else:
                self.is_numeric = True
                self._string += " ms"
+            else:
+                self.is_numeric = False
+                self.numeric_value = 0.0

    @classmethod
    def list_from_series(cls, series):
--- a/src/artemis.py
+++ b/src/artemis.py
@@ -1,9 +1,11 @@
 from collections import namedtuple
+from itertools import chain
 from functools import partial
 import webbrowser
 import os
 import sys
 from time import sleep, time
+import logging

 from pandas import read_csv

@@ -15,8 +17,10 @@ from PyQt5.QtWidgets import (
    QListWidgetItem,
    QMessageBox,
    QSplashScreen,
+    QFontDialog,
+    QWidget,
 )
-from PyQt5.QtGui import QPixmap
+from PyQt5.QtGui import QPixmap, QFont
 from PyQt5 import uic
 from PyQt5.QtCore import (
    QFileInfo,
@@ -46,17 +50,21 @@ from utilities import (
    is_undef_band,
    format_numbers,
    safe_cast,
+    UniqueMessageBox,
 )
 from executable_utilities import IS_BINARY, resource_path
 from os_utilities import IS_MAC
 from web_utilities import get_db_hash_code
 from downloadtargetfactory import get_download_target
+from settings import Settings
 from updatescontroller import UpdatesController
+from urlbutton import UrlButton
+import loggingconf  # noqa 401

 # import default_imgs_rc


-__LATEST_VERSION__ = "3.1.0"
+__LATEST_VERSION__ = "3.2.1"

 if IS_BINARY:
    __VERSION__ = __LATEST_VERSION__
@@ -101,6 +109,7 @@ class Artemis(QMainWindow, Ui_MainWindow):
        self.action_github.triggered.connect(
            lambda: webbrowser.open(Constants.GITHUB_REPO)
        )
+        self.action_font.triggered.connect(self.start_font_selection)
        self.db = None
        self.current_signal_name = ''
        self.signal_names = []
@@ -124,8 +133,6 @@ class Artemis(QMainWindow, Ui_MainWindow):

 # #######################################################################################

-        UrlColors = namedtuple("UrlColors", ["inactive", "active", "clicked"])
-        self.url_button.colors = UrlColors("#9f9f9f", "#4c75ff", "#942ccc")
        self.category_labels = [
            self.cat_mil,
            self.cat_rad,
@@ -205,10 +212,81 @@ class Artemis(QMainWindow, Ui_MainWindow):
        )

        # Final operations.
+        self.settings = Settings()
+        self.settings.load()
        self.theme_manager.start()
+        self.load_font()
        self.load_db()
        self.display_signals()

+    def apply_font(self, font):
+        """Apply a given QFont object to all the widgets."""
+        UniqueMessageBox.set_font(font)
+        # This is the smaller-text label. Not the most general strategy, but whatever..
+        smaller_point_size = self.forecast_today_0_lbl.font().pointSize()
+        min_reference_font = 4
+        for w in set(chain(
+            self.findChildren(QWidget),
+            self.download_window.findChildren(QWidget)
+        )):
+            old_font = w.font()
+            point_size = old_font.pointSize()
+            new_font = QFont(font)
+            new_font.setUnderline(old_font.underline())
+            new_font.setBold(old_font.bold())
+            new_font.setItalic(old_font.italic())
+            new_size = font.pointSize() + (point_size - smaller_point_size)
+            if new_size < min_reference_font:
+                new_size = min_reference_font
+            new_font.setPointSize(new_size)
+            w.setFont(new_font)
+
+    def load_font(self):
+        """Apply a QFont object if present."""
+        if self.settings.font is None:
+            return
+        try:
+            font = QFont(
+                self.settings.font['family'],
+                self.settings.font['point_size'],
+                self.settings.font['weight'],
+                self.settings.font['italic']
+            )
+            font.setStyle(self.settings.font['style'])
+            font.setPointSize(self.settings.font['point_size'])
+            font.setStrikeOut(self.settings.font['strikeout'])
+            font.setUnderline(self.settings.font['underline'])
+            self.apply_font(font)
+        except Exception:  # Invalid font
+            logging.warning("Invalid Font in settings.json")
+            pass
+
+    @pyqtSlot()
+    def start_font_selection(self):
+        """Open a font selection widget and apply the selected font."""
+        initial_font = self.description_text.font()
+        dialog = QFontDialog()
+        dialog.setCurrentFont(initial_font)
+        font, ok = dialog.getFont(
+            initial_font,
+            self,
+            "Choose a font",
+            options=QFontDialog.DontUseNativeDialog
+        )
+        if ok:
+            self.apply_font(font)
+            self.settings.save(
+                font={
+                    'family': font.family(),
+                    'style': font.style(),
+                    'point_size': font.pointSize(),
+                    'weight': font.weight(),
+                    'italic': font.italic(),
+                    'strikeout': font.strikeOut(),
+                    'underline': font.underline(),
+                }
+            )
+
    def action_after_download(self):
        """Decide what to do after a successful download.

@@ -282,6 +360,7 @@ class Artemis(QMainWindow, Ui_MainWindow):
        try:
            webbrowser.open(Constants.GFD_SITE + query.lower())
        except Exception:
+            logging.error("Cannot open browser")
            pass

    def set_initial_size(self):
@@ -370,7 +449,8 @@ class Artemis(QMainWindow, Ui_MainWindow):
            else:
                try:
                    is_checksum_ok = checksum_ok(db, get_db_hash_code())
-                except Exception:
+                except ValueError as e:
+                    logging.info(e)
                    pop_up(self, title=Messages.NO_CONNECTION,
                           text=Messages.NO_CONNECTION_MSG).show()
                else:
@@ -410,7 +490,8 @@ class Artemis(QMainWindow, Ui_MainWindow):
            else:
                try:
                    is_checksum_ok = checksum_ok(db, get_db_hash_code())
-                except Exception:
+                except ValueError as e:
+                    logging.info(e)
                    pop_up(self, title=Messages.NO_CONNECTION,
                           text=Messages.NO_CONNECTION_MSG).show()
                else:
@@ -544,15 +625,11 @@ class Artemis(QMainWindow, Ui_MainWindow):
            self.name_lab.setText(self.current_signal_name)
            self.name_lab.setAlignment(Qt.AlignHCenter)
            current_signal = self.db.loc[self.current_signal_name]
-            self.url_button.setEnabled(True)
            if not current_signal.at[Signal.WIKI_CLICKED]:
-                self.url_button.setStyleSheet(
-                    f"color: {self.url_button.colors.active};"
-                )
+                state = UrlButton.State.ACTIVE
            else:
-                self.url_button.setStyleSheet(
-                    f"color: {self.url_button.colors.clicked};"
-                )
+                state = UrlButton.State.CLICKED
+            self.url_button.set_enabled(state)
            category_code = current_signal.at[Signal.CATEGORY_CODE]
            undef_freq = is_undef_freq(current_signal)
            undef_band = is_undef_band(current_signal)
@@ -590,10 +667,7 @@ class Artemis(QMainWindow, Ui_MainWindow):
            self.set_band_range(current_signal)
            self.audio_widget.set_audio_player(self.current_signal_name)
        else:
-            self.url_button.setEnabled(False)
-            self.url_button.setStyleSheet(
-                f"color: {self.url_button.colors.inactive};"
-            )
+            self.url_button.set_disabled()
            self.current_signal_name = ''
            self.name_lab.setText("No Signal")
            self.name_lab.setAlignment(Qt.AlignHCenter)
@@ -665,9 +739,7 @@ class Artemis(QMainWindow, Ui_MainWindow):
        Do nothing if no signal is selected.
        """
        if self.current_signal_name:
-            self.url_button.setStyleSheet(
-                f"color: {self.url_button.colors.clicked}"
-            )
+            self.url_button.set_clicked()
            webbrowser.open(self.db.at[self.current_signal_name, Signal.URL])
            self.db.at[self.current_signal_name, Signal.WIKI_CLICKED] = True

--- a/src/artemis.ui
+++ b/src/artemis.ui
@@ -1255,7 +1255,7 @@
                   </property>
                   <layout class="QHBoxLayout" name="horizontalLayout_17">
                    <item>
-                     <widget class="QPushButton" name="url_button">
+                     <widget class="UrlButton" name="url_button">
                      <property name="enabled">
                       <bool>false</bool>
                      </property>
@@ -6949,7 +6949,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -6977,7 +6979,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7005,7 +7009,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7033,7 +7039,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7061,7 +7069,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7092,7 +7102,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7120,7 +7132,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7148,7 +7162,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -7176,7 +7192,9 @@ STORM</string>
                          <property name="font">
                           <font>
                            <pointsize>13</pointsize>
+                            <weight>75</weight>
                            <italic>false</italic>
+                            <bold>true</bold>
                           </font>
                          </property>
                          <property name="layoutDirection">
@@ -9516,11 +9534,6 @@ QSlider::handle:horizontal {
    <addaction name="action_update_database"/>
    <addaction name="action_check_software_version"/>
   </widget>
-   <widget class="QMenu" name="menu_themes">
-    <property name="title">
-     <string>Themes</string>
-    </property>
-   </widget>
   <widget class="QMenu" name="menuSigidwiki">
    <property name="title">
     <string>Sigidwiki</string>
@@ -9537,10 +9550,16 @@ QSlider::handle:horizontal {
    <addaction name="action_rtl_sdr_com"/>
    <addaction name="action_github"/>
   </widget>
+   <widget class="QMenu" name="settings_menu">
+    <property name="title">
+     <string>Settings</string>
+    </property>
+    <addaction name="action_font"/>
+   </widget>
   <addaction name="menuFile"/>
   <addaction name="menuUpdates"/>
-   <addaction name="menu_themes"/>
   <addaction name="menuSigidwiki"/>
+   <addaction name="settings_menu"/>
   <addaction name="menuAbout"/>
  </widget>
  <widget class="QStatusBar" name="statusbar">
@@ -9598,6 +9617,21 @@ QSlider::handle:horizontal {
    <string>Check software version</string>
   </property>
  </action>
+  <action name="action_themes">
+   <property name="text">
+    <string>Themes</string>
+   </property>
+  </action>
+  <action name="action_font">
+   <property name="text">
+    <string>Font...</string>
+   </property>
+  </action>
+  <action name="actionThemes">
+   <property name="text">
+    <string>Themes</string>
+   </property>
+  </action>
 </widget>
 <customwidgets>
  <customwidget>
@@ -9636,6 +9670,11 @@ QSlider::handle:horizontal {
   <extends>QLabel</extends>
   <header>switchable_label.h</header>
  </customwidget>
+  <customwidget>
+   <class>UrlButton</class>
+   <extends>QPushButton</extends>
+   <header>urlbutton.h</header>
+  </customwidget>
 </customwidgets>
 <resources>
  <include location="default_imgs.qrc"/>
--- a/src/constants.py
+++ b/src/constants.py
@@ -12,6 +12,7 @@ class SupportedOs:
    WINDOWS = "windows"
    LINUX   = "linux"
    MAC     = "mac"
+    RASPBIAN = "raspberry"


 class Ftype:
@@ -113,8 +114,8 @@ class Constants:
    UPDATING_STR            = "Updating..."
    ACF_DOCS                = "https://aresvalley.com/documentation/"
    FORECAST_PROBABILITIES  = "https://services.swpc.noaa.gov/text/sgarf.txt"
-    SPACE_WEATHER_XRAY      = "https://services.swpc.noaa.gov/text/goes-xray-flux-primary.txt"
-    SPACE_WEATHER_PROT_EL   = "https://services.swpc.noaa.gov/text/goes-particle-flux-primary.txt"
+    SPACE_WEATHER_XRAY      = "https://services.swpc.noaa.gov/json/goes/primary/xrays-1-day.json"
+    SPACE_WEATHER_PROT_EL   = "https://services.swpc.noaa.gov/json/goes/primary/integral-protons-1-day.json"
    SPACE_WEATHER_AK_INDEX  = "https://services.swpc.noaa.gov/text/wwv.txt"
    SPACE_WEATHER_SGAS      = "https://services.swpc.noaa.gov/text/sgas.txt"
    SPACE_WEATHER_GEO_STORM = "https://services.swpc.noaa.gov/text/3-day-forecast.txt"
@@ -181,6 +182,8 @@ class Constants:
    DEFAULT_IMGS_FOLDER     = os.path.join(":", "pics", "default_pics")
    DEFAULT_NOT_SELECTED    = os.path.join(DEFAULT_IMGS_FOLDER, NOT_SELECTED)
    DEFAULT_NOT_AVAILABLE   = os.path.join(DEFAULT_IMGS_FOLDER, NOT_AVAILABLE)
+    FONT_FILE               = os.path.join(__BASE_FOLDER__, 'font.json')
+    SETTINGS_FILE           = os.path.join(__BASE_FOLDER__, "settings.json")


 class Messages:
@@ -207,6 +210,8 @@ class Messages:
    NEW_VERSION_AVAILABLE    = "New software version"
    NEW_VERSION_MSG          = lambda v: f"The software version {v} is available."  # noqa: E731
    DOWNLOAD_SUGG_MSG        = "Download new version now?"
+    SCREEN_UPDATE_FAIL       = "Unable to update the data"
+    SCREEN_UPDATE_FAIL_MSG   = "Downloaded data currupted or invalid"


 class ThemeConstants:
@@ -215,7 +220,6 @@ class ThemeConstants:
    EXTENSION                 = ".qss"
    ICONS_FOLDER              = "icons"
    DEFAULT                   = "dark"
-    CURRENT                   = "__current_theme"
    COLORS                    = "colors.txt"
    COLOR_SEPARATOR           = "="
    DEFAULT_ACTIVE_COLOR      = "#000000"
@@ -231,5 +235,4 @@ class ThemeConstants:
    DEFAULT_ICONS_PATH        = os.path.join(FOLDER, DEFAULT, ICONS_FOLDER)
    DEFAULT_SEARCH_LABEL_PATH = os.path.join(DEFAULT_ICONS_PATH, Constants.SEARCH_LABEL_IMG)
    DEFAULT_VOLUME_LABEL_PATH = os.path.join(DEFAULT_ICONS_PATH, Constants.VOLUME_LABEL_IMG)
-    CURRENT_THEME_FILE        = os.path.join(FOLDER, CURRENT)
    DEFAULT_THEME_PATH        = os.path.join(FOLDER, DEFAULT)
--- a/src/downloadtargetfactory.py
+++ b/src/downloadtargetfactory.py
@@ -49,6 +49,7 @@ class _TarExtractor:
 EXTRACTORS = {
    SupportedOs.WINDOWS: _ZipExtractor,
    SupportedOs.LINUX: _TarExtractor,
+    SupportedOs.RASPBIAN: _TarExtractor,
    # No extractor for MacOs, just download the file through the browser.
 }

--- a/src/loggingconf.py
+++ b/src/loggingconf.py
@@ -0,0 +1,43 @@
+import logging
+import logging.config
+from constants import __BASE_FOLDER__
+import os.path
+
+"""Import the module to initialize the logging configuration.
+
+It is imported only for its side effects."""
+
+
+_LOGGING_CONFIG = {
+    'version': 1,
+    'formatters': {
+        'general': {
+            'format': '%(asctime)s::%(levelname)s::%(module)s::%(funcName)s::%(message)s',
+            'datefmt': '%d/%m/%Y %I:%M:%S %p',
+        },
+    },
+    'handlers': {
+        'console': {
+            'level': 'INFO',
+            'formatter': 'general',
+            'class': 'logging.StreamHandler',
+            'stream': 'ext://sys.stdout',
+        },
+        'file': {
+            'class': 'logging.FileHandler',
+            'level': 'ERROR',
+            'filename': os.path.join(__BASE_FOLDER__, 'info.log'),
+            'mode': 'w',
+            'encoding': 'utf8',
+            'formatter': 'general',
+        },
+    },
+    'root': {
+        'level': 'DEBUG',
+        'handlers': ['console', 'file'],
+    },
+    # Add loggers if required
+    # 'loggers': {}
+}
+
+logging.config.dictConfig(_LOGGING_CONFIG)
--- a/src/os_utilities.py
+++ b/src/os_utilities.py
@@ -1,4 +1,5 @@
 import sys
+import platform
 from constants import SupportedOs


@@ -20,6 +21,7 @@ def _is_linux_os():
 IS_MAC = _is_mac_os()
 IS_LINUX = _is_linux_os()
 IS_WINDOWS = _is_win_os()
+IS_RASPBIAN = IS_LINUX and 'arm' in platform.machine().lower()


 def get_os():
@@ -27,8 +29,10 @@ def get_os():
    if IS_WINDOWS:
        return SupportedOs.WINDOWS
    elif IS_LINUX:
+        if IS_RASPBIAN:
+            return SupportedOs.RASPBIAN
        return SupportedOs.LINUX
    elif IS_MAC:
        return SupportedOs.MAC
    else:
-        raise Exception("ERROR: OS not recognized.")
+        return None
--- a/src/settings.py
+++ b/src/settings.py
@@ -0,0 +1,43 @@
+import os.path
+from constants import Constants
+import json
+import logging
+
+
+class Settings:
+    """Dynamically save and load the settings of the application."""
+
+    def __init__(self):
+        self._dct = {}
+
+    def load(self):
+        """Load the setiings.json file."""
+        if not os.path.exists(Constants.SETTINGS_FILE):
+            return
+        try:
+            with open(Constants.SETTINGS_FILE, 'r') as settings_file:
+                self._dct = json.load(settings_file)
+        except FileNotFoundError:
+            logging.info("No settings.json file")
+            pass  # Invalid file.
+
+    def save(self, **kwargs):
+        """Save the settings.json file.
+
+        Also update the current settings specified in kwargs.
+        New settings can be dynamically added via this method."""
+        for k, v in kwargs.items():
+            self._dct[k] = v
+        with open(Constants.SETTINGS_FILE, mode='w') as settings_file:
+            json.dump(
+                self._dct,
+                settings_file,
+                sort_keys=True,
+                indent=4
+            )
+
+    def __getattr__(self, attr):
+        """Return the corresponding setting.
+
+        Return None if there is no such setting yet."""
+        return self._dct.get(attr, None)
--- a/src/spaceweathermanager.py
+++ b/src/spaceweathermanager.py
@@ -1,9 +1,10 @@
+import logging
 import webbrowser
 from PyQt5.QtCore import QObject, pyqtSlot
 from constants import Constants, Messages
 from switchable_label import SwitchableLabelsIterable
 from weatherdata import SpaceWeatherData
-from utilities import safe_cast, pop_up
+from utilities import pop_up


 class SpaceWeatherManager(QObject):
@@ -136,13 +137,14 @@ class SpaceWeatherManager(QObject):
        """
        self._owner.update_now_bar.set_idle()
        if status_ok:
-            xray_long = safe_cast(self._owner.space_weather_data.xray[-1][7], float)
+            try:
+                xray_long = float(self._owner.space_weather_data.xray)

                def format_text(letter, power):
                    return letter + f"{xray_long * 10**power:.1f}"

                if xray_long < 1e-8 and xray_long != -1.00e+05:
-                self._owner.peak_flux_lbl.setText(format_text("<A", 8))
+                    self._owner.peak_flux_lbl.setText("<A0.0")
                elif xray_long >= 1e-8 and xray_long < 1e-7:
                    self._owner.peak_flux_lbl.setText(format_text("A", 8))
                elif xray_long >= 1e-7 and xray_long < 1e-6:
@@ -171,7 +173,7 @@ class SpaceWeatherManager(QObject):
                elif xray_long == -1.00e+05:
                    self._switchable_r_labels.switch_off_all()

-            pro10 = safe_cast(self._owner.space_weather_data.prot_el[-1][8], float)
+                pro10 = float(self._owner.space_weather_data.prot_el)
                if pro10 < 10 and pro10 != -1.00e+05:
                    self._switchable_s_labels.switch_on(self._owner.s0_now_lbl)
                elif pro10 >= 10 and pro10 < 100:
@@ -187,18 +189,14 @@ class SpaceWeatherManager(QObject):
                elif pro10 == -1.00e+05:
                    self._switchable_s_labels.switch_off_all()

-            k_index = safe_cast(
-                self._owner.space_weather_data.ak_index[8][11].replace('.', ''), int
-            )
+                k_index = int(self._owner.space_weather_data.ak_index[8][11].replace('.', ''))
                self._owner.k_index_lbl.setText(str(k_index))
-            a_index = safe_cast(
-                self._owner.space_weather_data.ak_index[7][7].replace('.', ''), int
-            )
+                a_index = int(self._owner.space_weather_data.ak_index[7][7].replace('.', ''))
                self._owner.a_index_lbl.setText(str(a_index))

                if k_index == 0:
                    self._switchable_g_now_labels.switch_on(self._owner.g0_now_lbl)
-                self._k_storm_labels.switch_on(self.k_inactive_lbl)
+                    self._k_storm_labels.switch_on(self._owner.k_inactive_lbl)
                    self._owner.expected_noise_lbl.setText("  S0 - S1 (<-120 dBm)  ")
                elif k_index == 1:
                    self._switchable_g_now_labels.switch_on(self._owner.g0_now_lbl)
@@ -252,9 +250,7 @@ class SpaceWeatherManager(QObject):
                    self._a_storm_labels.switch_on(self._owner.a_sev_storm_lbl)

                index = self._owner.space_weather_data.geo_storm[6].index("was") + 1
-            k_index_24_hmax = safe_cast(
-                self._owner.space_weather_data.geo_storm[6][index], int
-            )
+                k_index_24_hmax = int(self._owner.space_weather_data.geo_storm[6][index])
                if k_index_24_hmax == 0:
                    self._switchable_g_today_labels.switch_on(self._owner.g0_today_lbl)
                elif k_index_24_hmax == 1:
@@ -276,13 +272,10 @@ class SpaceWeatherManager(QObject):
                elif k_index_24_hmax == 9:
                    self._switchable_g_today_labels.switch_on(self._owner.g5_today_lbl)

-            val = safe_cast(
-                self._owner.space_weather_data.ak_index[7][2].replace('.', ''), int
-            )
+                val = int(self._owner.space_weather_data.ak_index[7][2].replace('.', ''))
                self._owner.sfi_lbl.setText(f"{val}")
-            val = safe_cast(
-                [x[4] for x in self._owner.space_weather_data.sgas
-                    if "SSN" in x][0], int
+                val = int(
+                    [x[4] for x in self._owner.space_weather_data.sgas if "SSN" in x][0]
                )
                self._owner.sn_lbl.setText(f"{val:d}")

@@ -291,6 +284,14 @@ class SpaceWeatherManager(QObject):
                    label.pixmap = pixmap
                    label.make_transparent()
                    label.apply_pixmap()
+            except Exception as e:  # This is a mess, so log an error and give up
+                logging.error(f"Forecast update failure: {e}")
+                pop_up(
+                    self._owner,
+                    title=Messages.SCREEN_UPDATE_FAIL,
+                    text=Messages.SCREEN_UPDATE_FAIL_MSG
+                ).show()
+
        elif not self._owner.closing:
            pop_up(self._owner, title=Messages.BAD_DOWNLOAD,
                   text=Messages.BAD_DOWNLOAD_MSG).show()
--- a/src/themes/dark/dark.qss
+++ b/src/themes/dark/dark.qss
@@ -260,8 +260,6 @@ QPushButton {
 }

 QPushButton:hover {
-	border: 2px dashed #4545e5;
-    border-radius: 13px;
 	color: #FFFFFF;
 }

--- a/src/themes/elegant_dark/elegant_dark.qss
+++ b/src/themes/elegant_dark/elegant_dark.qss
@@ -113,58 +113,60 @@ QSpinBox::down-button:disabled {
 }

 QPushButton{
-	border-style: outset;
+	/*border-style: outset;
 	border-width: 2px;
 	border-top-color: qlineargradient(spread:pad, x1:0.5, y1:0.6, x2:0.5, y2:0.4, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-right-color: qlineargradient(spread:pad, x1:0.4, y1:0.5, x2:0.6, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-left-color: qlineargradient(spread:pad, x1:0.6, y1:0.5, x2:0.4, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-bottom-color: rgb(58, 58, 58);
 	border-bottom-width: 1px;
-	border-style: solid;
+	border-style: solid;*/
+	border: 0px;
 	color: rgb(255, 255, 255);
 	padding: 2px;
-	background-color: qlineargradient(spread:pad, x1:0.5, y1:1, x2:0.5, y2:0, stop:0 rgba(77, 77, 77, 255), stop:1 rgba(97, 97, 97, 255));
+	background-color: transparent;
 }
 QPushButton:hover{
-	border-style: outset;
+	/*border-style: outset;
 	border-width: 2px;
 	border-top-color: qlineargradient(spread:pad, x1:0.5, y1:0.6, x2:0.5, y2:0.4, stop:0 rgba(180, 180, 180, 255), stop:1 rgba(110, 110, 110, 255));
 	border-right-color: qlineargradient(spread:pad, x1:0.4, y1:0.5, x2:0.6, y2:0.5, stop:0 rgba(180, 180, 180, 255), stop:1 rgba(110, 110, 110, 255));
 	border-left-color: qlineargradient(spread:pad, x1:0.6, y1:0.5, x2:0.4, y2:0.5, stop:0 rgba(180, 180, 180, 255), stop:1 rgba(110, 110, 110, 255));
 	border-bottom-color: rgb(115, 115, 115);
 	border-bottom-width: 1px;
-	border-style: solid;
-	color: rgb(255, 255, 255);
+	border-style: solid;*/
+	border: 0px;
+	color: #AFAFAF;
 	padding: 2px;
-	background-color: qlineargradient(spread:pad, x1:0.5, y1:1, x2:0.5, y2:0, stop:0 rgba(107, 107, 107, 255), stop:1 rgba(157, 157, 157, 255));
 }
 QPushButton:pressed{
-	border-style: outset;
+	/*border-style: outset;
 	border-width: 2px;
 	border-top-color: qlineargradient(spread:pad, x1:0.5, y1:0.6, x2:0.5, y2:0.4, stop:0 rgba(62, 62, 62, 255), stop:1 rgba(22, 22, 22, 255));
 	border-right-color: qlineargradient(spread:pad, x1:0.4, y1:0.5, x2:0.6, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-left-color: qlineargradient(spread:pad, x1:0.6, y1:0.5, x2:0.4, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-bottom-color: rgb(58, 58, 58);
 	border-bottom-width: 1px;
-	border-style: solid;
+	border-style: solid;*/
+	border: 0px;
 	color: rgb(255, 255, 255);
 	padding: 2px;
-	background-color: qlineargradient(spread:pad, x1:0.5, y1:1, x2:0.5, y2:0, stop:0 rgba(77, 77, 77, 255), stop:1 rgba(97, 97, 97, 255));
 }
 QPushButton:disabled{
-	border-style: outset;
+	/*border-style: outset;
 	border-width: 2px;
 	border-top-color: qlineargradient(spread:pad, x1:0.5, y1:0.6, x2:0.5, y2:0.4, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-right-color: qlineargradient(spread:pad, x1:0.4, y1:0.5, x2:0.6, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-left-color: qlineargradient(spread:pad, x1:0.6, y1:0.5, x2:0.4, y2:0.5, stop:0 rgba(115, 115, 115, 255), stop:1 rgba(62, 62, 62, 255));
 	border-bottom-color: rgb(58, 58, 58);
 	border-bottom-width: 1px;
-	border-style: solid;
+	border-style: solid;*/
+	border: 0px;
 	color: rgb(0, 0, 0);
 	padding: 2px;
-	background-color: qlineargradient(spread:pad, x1:0.5, y1:1, x2:0.5, y2:0, stop:0 rgba(57, 57, 57, 255), stop:1 rgba(77, 77, 77, 255));
 }
 QPushButton:checked {
+	border: 0px;
 	color: #00ff00;
 }

@@ -187,6 +189,10 @@ QRadioButton{
    color: #FFFFFF;
 }

+QRadioButton:hover{
+    color: #AFAFAF;
+}
+
 QComboBox {
    border: 0px solid transparent;
    border-radius: 2px;
--- a/src/themesmanager.py
+++ b/src/themesmanager.py
@@ -102,7 +102,7 @@ class ThemeManager:
        self._theme_names = {}

    @pyqtSlot()
-    def _apply(self, theme_path):
+    def _apply(self, theme_path, save=True):
        """Apply the selected theme.

        Refresh all relevant widgets.
@@ -110,7 +110,7 @@ class ThemeManager:
        self._theme_path = theme_path
        if os.path.exists(theme_path):
            if self._theme_path != self._current_theme:
-                self._change()
+                self._change(save)
                self._owner.display_specs(
                    item=self._owner.signals_list.currentItem(),
                    previous_item=None
@@ -140,8 +140,12 @@ class ThemeManager:
        Connect all the actions to change the theme.
        Display a QMessageBox if the theme folder is not found."""
        themes = []
-        ag = QActionGroup(self._owner, exclusive=True)
-        if os.path.exists(ThemeConstants.FOLDER):
+        ag = QActionGroup(self._owner)
+        themes_menu = self._owner.settings_menu.addMenu("Themes")
+        if not os.path.exists(ThemeConstants.FOLDER):
+            pop_up(self._owner, title=ThemeConstants.THEME_FOLDER_NOT_FOUND,
+                   text=ThemeConstants.MISSING_THEME_FOLDER).show()
+            return
        for theme_folder in sorted(os.listdir(ThemeConstants.FOLDER)):
            relative_folder = os.path.join(ThemeConstants.FOLDER, theme_folder)
            if os.path.isdir(os.path.abspath(relative_folder)):
@@ -156,14 +160,11 @@ class ThemeManager:
                    checkable=True
                )
            )
-                self._owner.menu_themes.addAction(new_theme)
+            themes_menu.addAction(new_theme)
            self._theme_names[theme_name.lstrip('&')] = new_theme
            new_theme.triggered.connect(partial(self._apply, theme_path))
-        else:
-            pop_up(self._owner, title=ThemeConstants.THEME_FOLDER_NOT_FOUND,
-                   text=ThemeConstants.MISSING_THEME_FOLDER).show()

-    def _change(self):
+    def _change(self, save=True):
        """Change the current theme.

        Apply the stylesheet and set active and inactive colors.
@@ -266,40 +267,33 @@ class ThemeManager:
                    ThemeConstants.DEFAULT_TEXT_COLOR
                )
            self._current_theme = self._theme_path
-
-            try:
-                with open(ThemeConstants.CURRENT_THEME_FILE, "w") as current_theme:
-                    current_theme.write(os.path.basename(self._theme_path))
-            except Exception:
-                pass
+            if save:
+                self._owner.settings.save(theme=os.path.basename(self._theme_path))

    def apply_default_theme(self):
        """Apply the default theme if no theme is set or the theme name is invalid."""
-        try:
-            self._theme_names[
-                self._pretty_name(ThemeConstants.DEFAULT)
-            ].setChecked(True)
-        except Exception:
+        pretty_name = self._theme_names.get(self._pretty_name(ThemeConstants.DEFAULT), None)
+        if pretty_name is None:
            pop_up(
                self._owner,
                title=ThemeConstants.THEME_NOT_FOUND,
                text=ThemeConstants.MISSING_THEME
            ).show()
        else:
+            pretty_name.setChecked(True)
            self._apply(ThemeConstants.DEFAULT_THEME_PATH)

    def start(self):
        """Start the theme manager."""
        self._detect_themes()
-        if os.path.exists(ThemeConstants.CURRENT_THEME_FILE):
-            with open(ThemeConstants.CURRENT_THEME_FILE, "r") as current_theme_name:
-                theme_path = os.path.join(ThemeConstants.FOLDER, current_theme_name.read())
+        if self._owner.settings.theme is not None:
+            theme_path = os.path.join(ThemeConstants.FOLDER, self._owner.settings.theme)
            theme_name = self._pretty_name(os.path.basename(theme_path))
-            try:
-                self._theme_names[theme_name].setChecked(True)
-            except Exception:
+            theme = self._theme_names.get(theme_name, None)
+            if theme is None:
                self.apply_default_theme()
            else:
-                self._apply(theme_path)
+                theme.setChecked(True)
+                self._apply(theme_path, save=False)
        else:
            self.apply_default_theme()
--- a/src/threads.py
+++ b/src/threads.py
@@ -7,7 +7,7 @@ from time import perf_counter
 import aiohttp
 from PyQt5.QtCore import QThread, pyqtSignal, pyqtSlot
 from constants import Constants
-from utilities import checksum_ok
+from utilities import checksum_ok, get_file_extension
 from web_utilities import (
    get_cacert_file,
    get_pool_manager,
@@ -156,7 +156,7 @@ class DownloadThread(BaseDownloadThread):
        """Verify the checksum of the downloaded data and set the status accordingly."""
        try:
            is_checksum_ok = checksum_ok(raw_data, self._target.hash_code)
-        except Exception:  # Invalid hash code.
+        except ValueError:  # Invalid hash code.
            self.status = ThreadStatus.NO_CONNECTION_ERR
            return True
        else:
@@ -210,10 +210,7 @@ class UpdatesControllerThread(BaseDownloadThread):
 #             self.status = ThreadStatus.OK


-class _AsyncDownloader:
-    """Mixin class for asynchronous threads."""
-
-    async def _download_resource(self, session, link):
+async def _download_resource(session, link):
    """Return the content of 'link' as bytes."""
    ssl_context = ssl.create_default_context(
        purpose=ssl.Purpose.SERVER_AUTH,
@@ -223,7 +220,7 @@ class _AsyncDownloader:
    return await resp.read()


-class UpdateSpaceWeatherThread(BaseDownloadThread, _AsyncDownloader):
+class UpdateSpaceWeatherThread(BaseDownloadThread):
    """Subclass BaseDownloadThread. Download the space weather data."""

    _PROPERTIES = ("xray", "prot_el", "ak_index", "sgas", "geo_storm")
@@ -236,14 +233,12 @@ class UpdateSpaceWeatherThread(BaseDownloadThread, _AsyncDownloader):
    async def _download_property(self, session, property_name):
        """Download the data conteining the information of a specific property."""
        link = getattr(Constants, "SPACE_WEATHER_" + property_name.upper())
-        data = await self._download_resource(session, link)
-        setattr(self._space_weather_data, property_name, str(data, 'utf-8'))
+        data = await _download_resource(session, link)
+        self._space_weather_data.set_property(property_name, data, get_file_extension(link))

    async def _download_image(self, session, n):
        """Download the data corresponding the n-th image displayed in the screen."""
-        im = await self._download_resource(
-            session, Constants.SPACE_WEATHER_IMGS[n]
-        )
+        im = await _download_resource(session, Constants.SPACE_WEATHER_IMGS[n])
        self._space_weather_data.images[n].loadFromData(im)

    async def _download_resources(self):
@@ -278,7 +273,7 @@ class UpdateSpaceWeatherThread(BaseDownloadThread, _AsyncDownloader):
        asyncio.run(self._download_resources())


-class UpdateForecastThread(BaseDownloadThread, _AsyncDownloader):
+class UpdateForecastThread(BaseDownloadThread):
    """Subclass BaseDownloadThread. Download the forecast data."""

    class _PropertyName(Enum):
@@ -293,7 +288,7 @@ class UpdateForecastThread(BaseDownloadThread, _AsyncDownloader):

    async def _download_property(self, session, link, prop_name):
        """Download the data from 'link' and set the corresponding property of the owner."""
-        resp = await self._download_resource(session, link)
+        resp = await _download_resource(session, link)
        resp = str(resp, 'utf-8')
        if prop_name is self._PropertyName.FORECAST:
            self.owner.forecast = resp
--- a/src/updatescontroller.py
+++ b/src/updatescontroller.py
@@ -1,3 +1,4 @@
+import logging
 import subprocess as sp
 import webbrowser
 from PyQt5.QtCore import QObject, pyqtSlot, QProcess
@@ -99,6 +100,7 @@ class UpdatesController(QObject):
                try:
                    updater.startDetached(command)
                except BaseException:
+                    logging.error("Unable to start updater")
                    pass
                else:
                    qApp.quit()
@@ -110,7 +112,7 @@ class UpdatesController(QObject):
        If so, ask to download the new version.
        If the software is not a compiled version, the function is a NOP."""
        if not IS_BINARY or IS_MAC:
-            return
+            return None
        latest_updater_version = self.version_controller.updater.version
        try:
            with sp.Popen(
@@ -122,9 +124,10 @@ class UpdatesController(QObject):
            ) as proc:
                updater_version = proc.stdout.read().rstrip("\r\n")  # Strip any possible newline, to be sure.
        except Exception:
+            logging.error("Unable to query the updater")
            updater_version = latest_updater_version
        if latest_updater_version is None:
-            return
+            return None
        if updater_version != latest_updater_version:
            answer = pop_up(
                self._owner,
--- a/src/urlbutton.py
+++ b/src/urlbutton.py
@@ -0,0 +1,80 @@
+from PyQt5.QtWidgets import QPushButton
+from collections import namedtuple
+from enum import Enum, auto
+
+
+class UrlButton(QPushButton):
+    """Define the behaviour of the wiki button."""
+
+    class State(Enum):
+        """Possible states of the button."""
+        ACTIVE = auto()
+        INACTIVE = auto()
+        CLICKED = auto()
+
+    _UrlColors = namedtuple(
+        "UrlColors",
+        [
+            "INACTIVE",
+            "ACTIVE",
+            "CLICKED",
+            "ACTIVE_HOVER",
+            "CLICKED_HOVER",
+        ]
+    )
+    _COLORS = _UrlColors(
+        "#9f9f9f",
+        "#4c75ff",
+        "#942ccc",
+        "#808FFF",
+        "#DE78FF",
+    )
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+    def set_enabled(self, state):
+        """Enable the button and set the stylesheet."""
+        super().setEnabled(True)
+        if state is self.State.ACTIVE:
+            color = self._COLORS.ACTIVE
+        else:
+            color = self._COLORS.CLICKED
+        self.setStyleSheet(f"""
+            QPushButton {{
+                border: 0px;
+                background-color: transparent;
+                color: {color};
+            }}
+            QPushButton::hover {{
+                border: 0px;
+                background-color: transparent;
+                color: {self._COLORS.ACTIVE_HOVER};
+            }}
+        """)
+
+    def set_disabled(self):
+        """Disable the button and set the stylesheet."""
+        super().setEnabled(False)
+        self.setStyleSheet(f"""
+            QPushButton:disabled {{
+                border: 0px;
+                background-color: transparent;
+                color: {self._COLORS.INACTIVE};
+            }}
+        """)
+
+    def set_clicked(self):
+        """Apply the stylesheet for the clicked state."""
+        self.setStyleSheet(f"""
+            QPushButton {{
+                border: 0px;
+                background-color: transparent;
+                color: {self._COLORS.CLICKED};
+            }}
+            QPushButton::hover {{
+                border: 0px;
+                background-color: transparent;
+                color: {self._COLORS.CLICKED_HOVER};
+            }}
+        """)
--- a/src/utilities.py
+++ b/src/utilities.py
@@ -1,3 +1,4 @@
+import logging
 from functools import partial
 import hashlib
 from PyQt5.QtWidgets import QMessageBox
@@ -11,20 +12,40 @@ class UniqueMessageBox(QMessageBox):
    If another instance is the the exec loop, calling exec simply return None."""

    _open_message = False
+    _font = None
+
+    @classmethod
+    def set_font(cls, font):
+        """Store the font for all UniqueMessageBox(es)."""
+        cls._font = font

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

+    def setFont(self, font):
+        """Extends QMessageBox.setFont. Apply the font only if it is not None."""
+        if font is not None:
+            super().setFont(font)
+
    def exec(self):
        """Overrides QMessageBox.exec. Call the parent method if there are no
-        other instances executing exec. Otherwise return None,"""
-        if UniqueMessageBox._open_message:
+        other instances executing exec; also set the current font.
+        Otherwise return None,"""
+        if self.__class__._open_message:
            return None
-        UniqueMessageBox._open_message = True
+        self.setFont(self._font)
+        self.__class__._open_message = True
        answer = super().exec()
-        UniqueMessageBox._open_message = False
+        self.__class__._open_message = False
        return answer

+    def show(self):
+        """Extends QMessageBox.show().
+
+        Set the font before showing the message."""
+        self.setFont(self._font)
+        super().show()
+

 def uncheck_and_emit(button):
    """Set the button to the unchecked state and emit the clicked signal."""
@@ -87,7 +108,7 @@ def checksum_ok(data, reference_hash_code):

    Expects a sha256 code as argument."""
    if reference_hash_code is None:
-        raise Exception("ERROR: Invalid hash code.")
+        raise ValueError("ERROR: Invalid hash code.")
    code = hashlib.sha256()
    code.update(data)
    return code.hexdigest() == reference_hash_code
@@ -172,6 +193,25 @@ def safe_cast(value, cast_type, default=-1):
    try:
        r = cast_type(value)
    except Exception:
+        logging.error("Cast type failure")
        r = default
    finally:
        return r
+
+
+def get_file_extension(file):
+    """Return the extension of a file. Return None if there is not such property."""
+    components = file.split('.')
+    if len(components) > 1:
+        return components[-1]
+    return None
+
+
+def get_value_from_list_of_dicts(iterable, callable_ok, key_value):
+    """Return a value from a dict inside a list of dicts.
+
+    The iterable is reversed first, then the value corresponding to the key key_value
+    is returned from the first dict for which callable_ok(dict) returns True"""
+    for d in reversed(iterable):
+        if callable_ok(d):
+            return d[key_value]
--- a/src/versioncontroller.py
+++ b/src/versioncontroller.py
@@ -61,16 +61,25 @@ def _download_versions_file():
                "size": ...
            }
        }
+        "raspberry": {
+            "software": {
+                "version": "...",
+                "url": "...",
+                "hash_code": "...",
+                "size": ...
+            },
+            "updater": {
+                "version": "...",
+                "url": "...",
+                "hash_code": "...",
+                "size": ...
+            }
+        }
    }
    """
-    try:
-        version_dict = json.load(
+    return json.load(
        BytesIO(download_file(Constants.VERSION_LINK))
-        )[get_os()]
-    except Exception:
-        return None
-    else:
-        return version_dict
+    ).get(get_os(), None)


 class VersionController:
@@ -80,7 +89,6 @@ class VersionController:

    def __init__(self, dct=None):
        """Initialize the dictionary"""
-        super().__init__()
        self._dct = dct

    def __getattr__(self, attr):
@@ -89,11 +97,9 @@ class VersionController:
        if self._dct is None:
            if not self.update():
                return None
-        try:
-            dct_element = self._dct[attr]
-        except Exception("ERROR: Invalid attribute!"):
+        dct_element = self._dct.get(attr, None)
+        if dct_element is None:
            return None
-        else:
        if isinstance(dct_element, dict):
            setattr(self, attr, type(self)(dct_element))
        else:
--- a/src/weatherdata.py
+++ b/src/weatherdata.py
@@ -1,3 +1,5 @@
+import logging
+import json
 import re
 from PyQt5.QtGui import QPixmap
 from PyQt5.QtCore import pyqtSlot, pyqtSignal, QObject
@@ -9,7 +11,7 @@ from threads import (
 )
 from constants import Constants
 from switchable_label import MultiColorSwitchableLabel
-from utilities import safe_cast
+from utilities import safe_cast, get_value_from_list_of_dicts


 class _BaseWeatherData(QObject):
@@ -89,12 +91,35 @@ class SpaceWeatherData(_BaseWeatherData):
        """Override _BaseWeatherData._parse_data.

        Set all the data."""
-        self.xray      = self._double_split(self.xray)
-        self.prot_el   = self._double_split(self.prot_el)
+        if self.xray is not None:
+            self.xray = get_value_from_list_of_dicts(
+                self.xray,
+                lambda d: d["energy"] == "0.1-0.8nm",
+                "flux"
+            )
+        if self.prot_el is not None:
+            self.prot_el = get_value_from_list_of_dicts(
+                self.prot_el,
+                lambda d: d["energy"] == ">=10 MeV",
+                "flux"
+            )
+        if self.ak_index is not None:
            self.ak_index = self._double_split(self.ak_index)
+        if self.sgas is not None:
            self.sgas = self._double_split(self.sgas)
+        if self.geo_storm is not None:
            self.geo_storm = self._double_split(self.geo_storm)

+    def set_property(self, property_name, data, extension):
+        """Set a property to the object. Format the data based on the extension."""
+        if extension == 'txt':
+            setattr(self, property_name, str(data, 'utf-8'))
+        elif extension == 'json':
+            setattr(self, property_name, json.loads(data))
+        else:
+            logging.error("Invalid file extension")
+            setattr(self, property_name, None)
+
    def remove_data(self):
        """Remove the reference to all the data."""
        self.xray = ''
@@ -347,6 +372,7 @@ class ForecastData(_BaseWeatherData):
            self._set_dates(forecast, rows["solar_row"])
            self._set_labels_values(labels_table)
        except Exception:
+            logging.error("Update ForecastData failure")
            pass

    def remove_data(self):
--- a/src/web_utilities.py
+++ b/src/web_utilities.py
@@ -1,3 +1,4 @@
+import logging
 import os
 import sys
 import urllib3
@@ -37,15 +38,21 @@ def _download_multiline_file_as_list(url=Database.LINK_REF):
    The downloaded file is a csv file with columns (last version == last line):
    data.zip_SHA256 | db.csv_SHA256 | Version | Creation_date"""
    try:
-        f = download_file(url, encoding="UTF-8").splitlines()[-1].split(Database.DELIMITER)
+        return download_file(url, encoding="UTF-8").splitlines()[-1].split(Database.DELIMITER)
    except Exception:
+        logging.error("Database metadata download failure")
        return None
-    return f


 def get_folder_hash_code():
-    return _download_multiline_file_as_list()[0]
+    f = _download_multiline_file_as_list()
+    if f is not None:
+        return f[0]
+    return None


 def get_db_hash_code():
-    return _download_multiline_file_as_list()[1]
+    f = _download_multiline_file_as_list()
+    if f is not None:
+        return f[1]
+    return None
Author	SHA1	Message	Date
Alessandro	84dc68dd55	Update changelog for v3.2.1	2020-04-25 15:42:00 +02:00
Alessandro	cfd302d3ca	Close #16 Remove 'exclusive' parameter from a PyQt function. Also update readme.md	2020-04-18 21:43:03 +02:00
AresValley	3c6658d19d	Merge commit '5af0faaa65432db23d391ee65a6fe9f85021f032'	2020-04-18 21:04:16 +02:00
AresValley	5af0faaa65	Minor raspberry fix	2020-04-18 21:02:28 +02:00
Alessandro	ce2cfdc76a	Update README.md with latest changes	2020-04-15 20:23:26 +02:00
Alessandro	6e0a161b89	Merge branch 'new_forecast_files'	2020-04-15 20:14:44 +02:00
Alessandro	940c6a0d58	Merge branch 'master' of https://github.com/AresValley/Artemis	2020-04-15 20:14:36 +02:00
AresValley	194b5c8fb8	Fixed categorization for very low x-ray flux according to NOAA format	2020-04-15 13:13:33 +02:00
Alessandro	4e1b3f24c5	Close #21 Some forecast data has benn changed to json in the download site. Such cases are now handled	2020-04-11 17:16:21 +02:00
Alessandro	eaeb51de65	Add some basic logging to the application. Also for severe errors, track them in info.log file in local folder	2020-04-11 15:27:05 +02:00
Alessandro	995696f11a	Add raspberryPI support	2020-04-11 00:50:37 +02:00
Marco Dalla Tiezza	7503b6bb14	License update	2020-04-10 13:11:24 +02:00
Marco Dalla Tiezza	b867ca849d	Update README.md	2020-04-10 13:09:29 +02:00
Alessandro	ab32fbbf98	Some minor style improvements	2020-02-29 21:43:40 +01:00
Alessandro	bcd24cc035	Close #14 Make font customizable. Also manage user settings via a settings.json file. Also improve 'dark' and 'elegant_dark' themes. Finally improve 'Signal's wiki' button behaviour. Also fix a bug in forecast/now view which caused a crash if solar activity was inactive	2019-12-14 11:50:35 +01:00
Alessandro	5908110a43	Remove _AsyncDownloader, just use a regular function instead	2019-11-28 22:08:38 +01:00