Add notification about upcoming lesson (#578)

app/src/main/res/values-pl/strings.xml

@@ -121,6 +121,9 @@
     <string name="timetable_time">Godziny</string>
     <string name="timetable_changes">Zmiany</string>
     <string name="timetable_no_items">Brak lekcji w tym dniu</string>
+    <string name="timetable_now">Teraz: %s</string>
+    <string name="timetable_next">Za chwilę: %s</string>
+    <string name="timetable_later">Później: %s</string>
     <!--Completed lessons-->
     <string name="completed_lessons_title">Lekcje zrealizowane</string>
     <string name="completed_lessons_button">Zobacz lekcje zrealizowane</string>
@@ -319,6 +322,7 @@
     <string name="pref_view_app_language">Język aplikacji</string>
     <string name="pref_notify_header">Powiadomienia</string>
     <string name="pref_notify_switch">Pokazuj powiadomienia</string>
+    <string name="pref_notify_upcoming_lessons_switch">Pokazuj powiadomienia o następnych lekcjach</string>
     <string name="pref_notify_debug_switch">Pokazuj powiadomienia debugowania</string>
     <string name="pref_services_header">Synchronizacja</string>
     <string name="pref_services_switch">Automatyczna aktualizacja</string>
@@ -344,6 +348,7 @@
     <string name="channel_new_message">Nowe wiadomości</string>
     <string name="channel_new_notes">Nowe uwagi</string>
     <string name="channel_push">Powiadomienia push</string>
+    <string name="channel_upcoming_lessons">Nadchodzące lekcje</string>
     <string name="channel_debug">Debugowanie</string>
     <!--Colors-->
     <string name="all_black">Czarny</string>

app/src/main/res/values/preferences_defaults.xml

@@ -13,6 +13,7 @@
     <string name="pref_default_services_interval">60</string>
     <bool name="pref_default_services_wifi_only">false</bool>
     <bool name="pref_default_notifications_enable">true</bool>
+    <bool name="pref_default_notification_upcoming_lessons_enable">false</bool>
     <bool name="pref_default_notification_debug">false</bool>
     <string name="pref_default_grade_modifier_plus">0.33</string>
     <string name="pref_default_grade_modifier_minus">0.33</string>

app/src/main/res/values/preferences_keys.xml

@@ -14,6 +14,7 @@
     <string name="pref_key_services_wifi_only">services_disable_wifi_only</string>
     <string name="pref_key_services_force_sync">services_force_sync</string>
     <string name="pref_key_notifications_enable">notifications_enable</string>
+    <string name="pref_key_notifications_upcoming_lessons_enable">notifications_upcoming_lessons_enable</string>
     <string name="pref_key_notification_debug">notification_debug</string>
     <string name="pref_key_grade_modifier_plus">grade_modifier_plus</string>
     <string name="pref_key_grade_modifier_minus">grade_modifier_minus</string>

app/src/main/res/values/strings.xml

@@ -130,6 +130,9 @@
     <string name="timetable_time">Hours</string>
     <string name="timetable_changes">Changes</string>
     <string name="timetable_no_items">No lessons this day</string>
+    <string name="timetable_now">Now: %s</string>
+    <string name="timetable_next">Next: %s</string>
+    <string name="timetable_later">Later: %s</string>
 
 
     <!--Completed lessons-->
@@ -356,6 +359,7 @@
 
     <string name="pref_notify_header">Notifications</string>
     <string name="pref_notify_switch">Show notifications</string>
+    <string name="pref_notify_upcoming_lessons_switch">Show upcoming lesson notifications</string>
     <string name="pref_notify_debug_switch">Show debug notifications</string>
 
     <string name="pref_services_header">Synchronization</string>
@@ -386,6 +390,7 @@
     <string name="channel_new_message">New messages</string>
     <string name="channel_new_notes">New notes</string>
     <string name="channel_push">Push notifications</string>
+    <string name="channel_upcoming_lessons">Upcoming lessons</string>
     <string name="channel_debug">Debug</string>
 
 

app/src/main/res/xml/scheme_preferences.xml

@@ -96,6 +96,11 @@
             app:iconSpaceReserved="false"
             app:key="@string/pref_key_notifications_enable"
             app:title="@string/pref_notify_switch" />
+        <SwitchPreferenceCompat
+            app:defaultValue="@bool/pref_default_notification_upcoming_lessons_enable"
+            app:iconSpaceReserved="false"
+            app:key="@string/pref_key_notifications_upcoming_lessons_enable"
+            app:title="@string/pref_notify_upcoming_lessons_switch" />
         <SwitchPreferenceCompat
             app:defaultValue="@bool/pref_default_notification_debug"
             app:iconSpaceReserved="false"