Changed schedule start- and end-time to schedule start and duration

Localized display of schedule start-time and duration
Removed displaying scheduling settings if "APScheduler" is missing
Input check for start-time and duration

cps.py

@@ -77,7 +77,7 @@ def main():
         app.register_blueprint(oauth)
 
     # Register scheduled tasks
-    register_scheduled_tasks()
+    register_scheduled_tasks()  # ToDo only reconnect if reconnect is enabled
     register_startup_tasks()
 
     success = web_server.start()

cps/admin.py

@@ -24,13 +24,12 @@ import os
 import re
 import base64
 import json
-import time
 import operator
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, time
 from functools import wraps
 
 from babel import Locale
-from babel.dates import format_datetime
+from babel.dates import format_datetime, format_time, format_timedelta
 from flask import Blueprint, flash, redirect, url_for, abort, request, make_response, send_from_directory, g, Response
 from flask_login import login_required, current_user, logout_user, confirm_login
 from flask_babel import gettext as _
@@ -58,7 +57,8 @@ feature_support = {
         'goodreads': bool(services.goodreads_support),
         'kobo':  bool(services.kobo),
         'updater': constants.UPDATER_AVAILABLE,
-        'gmail': bool(services.gmail)
+        'gmail': bool(services.gmail),
+        'scheduler': schedule.use_APScheduler
     }
 
 try:
@@ -184,6 +184,7 @@ def update_thumbnails():
 @login_required
 @admin_required
 def admin():
+    locale = get_locale()
     version = updater_thread.get_current_version_info()
     if version is False:
         commit = _(u'Unknown')
@@ -198,15 +199,19 @@ def admin():
                     form_date -= timedelta(hours=int(commit[20:22]), minutes=int(commit[23:]))
                 elif commit[19] == '-':
                     form_date += timedelta(hours=int(commit[20:22]), minutes=int(commit[23:]))
-            commit = format_datetime(form_date - tz, format='short', locale=get_locale())
+            commit = format_datetime(form_date - tz, format='short', locale=locale)
         else:
             commit = version['version']
 
     all_user = ub.session.query(ub.User).all()
     email_settings = config.get_mail_settings()
-    kobo_support = feature_support['kobo'] and config.config_kobo_sync
+    schedule_time = format_time(time(hour=config.schedule_start_time), format="short", locale=locale)
+    t = timedelta(hours=config.schedule_duration // 60, minutes=config.schedule_duration % 60)
+    schedule_duration = format_timedelta(t, format="short", threshold=.99, locale=locale)
+
     return render_title_template("admin.html", allUser=all_user, email=email_settings, config=config, commit=commit,
-                                 feature_support=feature_support, kobo_support=kobo_support,
+                                 feature_support=feature_support, schedule_time=schedule_time,
+                                 schedule_duration=schedule_duration,
                                  title=_(u"Admin page"), page="admin")
 
 
@@ -1660,36 +1665,57 @@ def update_mailsettings():
 @admin_required
 def edit_scheduledtasks():
     content = config.get_scheduled_task_settings()
-    return render_title_template("schedule_edit.html", config=content, title=_(u"Edit Scheduled Tasks Settings"))
+    time_field = list()
+    duration_field = list()
+
+    locale = get_locale()
+    for n in range(24):
+        time_field.append((n , format_time(time(hour=n), format="short", locale=locale)))
+    for n in range(5, 65, 5):
+        t = timedelta(hours=n // 60, minutes=n % 60)
+        duration_field.append((n, format_timedelta(t, format="short", threshold=.99, locale=locale)))
+
+    return render_title_template("schedule_edit.html", config=content, starttime=time_field, duration=duration_field, title=_(u"Edit Scheduled Tasks Settings"))
 
 
 @admi.route("/admin/scheduledtasks", methods=["POST"])
 @login_required
 @admin_required
 def update_scheduledtasks():
+    error = False
     to_save = request.form.to_dict()
-    _config_int(to_save, "schedule_start_time")
+    if "0" <= to_save.get("schedule_start_time") <= "23":
-    _config_int(to_save, "schedule_end_time")
+        _config_int(to_save, "schedule_start_time")
+    else:
+        flash(_(u"Invalid start time for task specified"), category="error")
+        error = True
+    if "0" < to_save.get("schedule_duration") <= "60":
+        _config_int(to_save, "schedule_duration")
+    else:
+        flash(_(u"Invalid duration for task specified"), category="error")
+        error = True
     _config_checkbox(to_save, "schedule_generate_book_covers")
     _config_checkbox(to_save, "schedule_generate_series_covers")
+    _config_checkbox(to_save, "schedule_reconnect")
 
-    try:
+    if not error:
-        config.save()
+        try:
-        flash(_(u"Scheduled tasks settings updated"), category="success")
+            config.save()
+            flash(_(u"Scheduled tasks settings updated"), category="success")
 
-        # Cancel any running tasks
+            # Cancel any running tasks
-        schedule.end_scheduled_tasks()
+            schedule.end_scheduled_tasks()
 
-        # Re-register tasks with new settings
+            # Re-register tasks with new settings
-        schedule.register_scheduled_tasks(cli.reconnect_enable)
+            schedule.register_scheduled_tasks(config.schedule_reconnect)
-    except IntegrityError as ex:
+        except IntegrityError:
-        ub.session.rollback()
+            ub.session.rollback()
-        log.error("An unknown error occurred while saving scheduled tasks settings")
+            log.error("An unknown error occurred while saving scheduled tasks settings")
-        flash(_(u"An unknown error occurred. Please try again later."), category="error")
+            flash(_(u"An unknown error occurred. Please try again later."), category="error")
-    except OperationalError:
+        except OperationalError:
-        ub.session.rollback()
+            ub.session.rollback()
-        log.error("Settings DB is not Writeable")
+            log.error("Settings DB is not Writeable")
-        flash(_("Settings DB is not Writeable"), category="error")
+            flash(_("Settings DB is not Writeable"), category="error")
 
     return edit_scheduledtasks()
 

cps/config_sql.py

@@ -142,9 +142,10 @@ class _Settings(_Base):
     config_allow_reverse_proxy_header_login = Column(Boolean, default=False)
 
     schedule_start_time = Column(Integer, default=4)
-    schedule_end_time = Column(Integer, default=6)
+    schedule_duration = Column(Integer, default=10)
     schedule_generate_book_covers = Column(Boolean, default=False)
     schedule_generate_series_covers = Column(Boolean, default=False)
+    schedule_reconnect = Column(Boolean, default=False)
 
     def __repr__(self):
         return self.__class__.__name__

cps/schedule.py

@@ -19,7 +19,7 @@
 import datetime
 
 from . import config, constants
-from .services.background_scheduler import BackgroundScheduler
+from .services.background_scheduler import BackgroundScheduler, use_APScheduler
 from .tasks.database import TaskReconnectDatabase
 from .tasks.thumbnail import TaskGenerateCoverThumbnails, TaskGenerateSeriesThumbnails, TaskClearCoverThumbnailCache
 from .services.worker import WorkerThread
@@ -27,7 +27,7 @@ from .services.worker import WorkerThread
 
 def get_scheduled_tasks(reconnect=True):
     tasks = list()
-
+    # config.schedule_reconnect or
     # Reconnect Calibre database (metadata.db)
     if reconnect:
         tasks.append([lambda: TaskReconnectDatabase(), 'reconnect', False])
@@ -59,15 +59,14 @@ def register_scheduled_tasks(reconnect=True):
         scheduler.remove_all_jobs()
 
         start = config.schedule_start_time
-        end = config.schedule_end_time
+        duration = config.schedule_duration
 
         # Register scheduled tasks
-        if start != end:
+        scheduler.schedule_tasks(tasks=get_scheduled_tasks(), trigger='cron', hour=start)
-            scheduler.schedule_tasks(tasks=get_scheduled_tasks(), trigger='cron', hour=start)
+        scheduler.schedule(func=end_scheduled_tasks, trigger='cron', name="end scheduled task", hour=start) #  toDo
-            scheduler.schedule(func=end_scheduled_tasks, trigger='cron', name="end scheduled task", hour=end)
 
         # Kick-off tasks, if they should currently be running
-        if should_task_be_running(start, end):
+        if should_task_be_running(start, duration):
             scheduler.schedule_tasks_immediately(tasks=get_scheduled_tasks(reconnect))
 
 
@@ -76,14 +75,17 @@ def register_startup_tasks():
 
     if scheduler:
         start = config.schedule_start_time
-        end = config.schedule_end_time
+        duration = config.schedule_duration
 
         # Run scheduled tasks immediately for development and testing
         # Ignore tasks that should currently be running, as these will be added when registering scheduled tasks
-        if constants.APP_MODE in ['development', 'test'] and not should_task_be_running(start, end):
+        if constants.APP_MODE in ['development', 'test'] and not should_task_be_running(start, duration):
             scheduler.schedule_tasks_immediately(tasks=get_scheduled_tasks(False))
 
 
-def should_task_be_running(start, end):
+def should_task_be_running(start, duration):
-    now = datetime.datetime.now().hour
+    now = datetime.datetime.now()
-    return (start < end and start <= now < end) or (end < start and (now < end or start <= now ))
+    start_time = datetime.datetime.now().replace(hour=start, minute=0, second=0, microsecond=0)
+    end_time = start_time + datetime.timedelta(hours=duration // 60, minutes=duration % 60)
+    return start_time < now < end_time
+    # return (start < end and start <= now < end) or (end < start and (now < end or start <= now ))

cps/tasks/database.py

@@ -31,6 +31,7 @@ class TaskReconnectDatabase(CalibreTask):
         self.listen_address = config.get_config_ipaddress()
         self.listen_port = config.config_port
 
+
     def run(self, worker_thread):
         address = self.listen_address if self.listen_address else 'localhost'
         port = self.listen_port if self.listen_port else 8083

cps/templates/admin.html

@@ -161,18 +161,18 @@
       <a class="btn btn-default" id="view_config" href="{{url_for('admin.view_configuration')}}">{{_('Edit UI Configuration')}}</a>
     </div>
   </div>
-
+{%  if feature_support['scheduler'] %}
   <div class="row">
     <div class="col">
       <h2>{{_('Scheduled Tasks')}}</h2>
         <div class="col-xs-12 col-sm-12 scheduled_tasks_details">
           <div class="row">
             <div class="col-xs-6 col-sm-3">{{_('Time at which tasks start to run')}}</div>
-            <div class="col-xs-6 col-sm-3">{{config.schedule_start_time}}:00</div>
+            <div class="col-xs-6 col-sm-3">{{schedule_time}}</div>
           </div>
           <div class="row">
-            <div class="col-xs-6 col-sm-3">{{_('Time at which tasks stop running')}}</div>
+            <div class="col-xs-6 col-sm-3">{{_('Maximum tasks duration')}}</div>
-            <div class="col-xs-6 col-sm-3">{{config.schedule_end_time}}:00</div>
+            <div class="col-xs-6 col-sm-3">{{schedule_duration}}</div>
           </div>
           <div class="row">
             <div class="col-xs-6 col-sm-3">{{_('Generate book cover thumbnails')}}</div>
@@ -182,6 +182,11 @@
             <div class="col-xs-6 col-sm-3">{{_('Generate series cover thumbnails')}}</div>
             <div class="col-xs-6 col-sm-3">{{ display_bool_setting(config.schedule_generate_series_covers) }}</div>
           </div-->
+          <div class="row">
+            <div class="col-xs-6 col-sm-3">{{_('Reconnect to Calibre Library')}}</div>
+            <div class="col-xs-6 col-sm-3">{{ display_bool_setting(config.schedule_reconnect) }}</div>
+          </div>
+
         </div>
       <a class="btn btn-default scheduledtasks" id="admin_edit_scheduled_tasks" href="{{url_for('admin.edit_scheduledtasks')}}">{{_('Edit Scheduled Tasks Settings')}}</a>
       {% if config.schedule_generate_book_covers %}
@@ -189,7 +194,7 @@
       {%  endif %}
     </div>
   </div>
-
+{%  endif %}
   <div class="row form-group">
     <h2>{{_('Administration')}}</h2>
     <a class="btn btn-default" id="debug" href="{{url_for('admin.download_debug')}}">{{_('Download Debug Package')}}</a>

cps/templates/schedule_edit.html

@@ -11,16 +11,16 @@
     <div class="form-group">
       <label for="schedule_start_time">{{_('Time at which tasks start to run')}}</label>
       <select name="schedule_start_time" id="schedule_start_time" class="form-control">
-        {% for n in range(24) %}
+        {% for n in starttime %}
-          <option value="{{n}}" {% if config.schedule_start_time == n %}selected{% endif %}>{{n}}{{_(':00')}}</option>
+          <option value="{{n[0]}}" {% if config.schedule_start_time == n[0] %}selected{% endif %}>{{n[1]}}</option>
         {% endfor %}
       </select>
     </div>
     <div class="form-group">
-      <label for="schedule_end_time">{{_('Time at which tasks stop running')}}</label>
+      <label for="schedule_duration">{{_('Maximum tasks duration')}}</label>
-      <select name="schedule_end_time" id="schedule_end_time" class="form-control">
+      <select name="schedule_duration" id="schedule_duration" class="form-control">
-        {% for n in range(24) %}
+        {% for n in duration %}
-          <option value="{{n}}" {% if config.schedule_end_time == n %}selected{% endif %}>{{n}}{{_(':00')}}</option>
+          <option value="{{n[0]}}" {% if config.schedule_duration == n[0] %}selected{% endif %}>{{n[1]}}</option>
         {% endfor %}
       </select>
     </div>
@@ -32,6 +32,11 @@
       <input type="checkbox" id="schedule_generate_series_covers" name="schedule_generate_series_covers" {% if config.schedule_generate_series_covers %}checked{% endif %}>
       <label for="schedule_generate_series_covers">{{_('Generate Series Cover Thumbnails')}}</label>
     </div-->
+    <div class="form-group">
+      <input type="checkbox" id="schedule_reconnect" name="schedule_reconnect" {% if config.schedule_generate_book_covers %}checked{% endif %}>
+      <label for="schedule_reconnect">{{_('Reconnect to Calibre Library')}}</label>
+    </div>
+
     <button type="submit" name="submit" value="submit" class="btn btn-default">{{_('Save')}}</button>
     <a href="{{ url_for('admin.admin') }}" id="email_back" class="btn btn-default">{{_('Cancel')}}</a>
   </form>