Merge pull request #1026 from tcely/patch-6

Add a start link to scheduled tasks

tubesync/sync/forms.py

@@ -44,10 +44,19 @@ class ResetTasksForm(forms.Form):
     pass
 
 
+class ScheduleTaskForm(forms.Form):
+
+    when = forms.DateTimeField(
+        label=_('When the task should run'),
+        required=True,
+    )
+
+
 class ConfirmDeleteMediaServerForm(forms.Form):
 
     pass
 
+
 _media_server_type_label = 'Jellyfin'
 class JellyfinMediaServerForm(forms.Form):
 

tubesync/sync/templates/sync/task-schedule.html

@@ -0,0 +1,34 @@
+{% extends 'base.html' %}
+
+{% block headtitle %}Schedule task{% endblock %}
+
+{% block content %}
+<div class="row no-margin-bottom">
+  <div class="col s12">
+    <h1>Schedule task</h1>
+    <p>
+      If you don't want to wait for the existing schedule to be triggered,
+      you can use this to change when the task will be scheduled to run.
+      It is not guaranteed to run at any exact time, because when a task
+      requests to run and when a slot to execute it, in the appropriate
+      queue and with the priority level assigned, is dependent on how long
+      other tasks are taking to complete the assigned work.
+    </p>
+    <p>
+      This will change the time that the task is requesting to be run
+      to the current time, plus some number of seconds.
+    </p>
+  </div>
+</div>
+<div class="row">
+  <form method="post" action="{% url 'sync:run-task' pk=task.pk %}" class="col s12 simpleform">
+    {% csrf_token %}
+    {% include 'simpleform.html' with form=form %}
+    <div class="row no-margin-bottom padding-top">
+      <div class="col s12">
+        <button class="btn" type="submit" name="action">Really schedule task <i class="far fa-clock"></i></button>
+      </div>
+    </div>
+  </form>
+</div>
+{% endblock %}

tubesync/sync/templates/sync/tasks.html

@@ -43,11 +43,16 @@
     </p>
     <div class="collection">
       {% for task in errors %}
-        <a href="{% url task.url pk=task.instance.pk %}" class="collection-item error-text">
-          <i class="fas fa-exclamation-triangle"></i> <strong>{{ task }}</strong>, attempted {{ task.attempts }} time{{ task.attempts|pluralize }}<br>
-          Error: &quot;{{ task.error_message }}&quot;<br>
+        <div class="collection-item error-text">
+          <a href="{% url task.url pk=task.instance.pk %}" class="error-text">
+            <i class="fas fa-exclamation-triangle"></i> <strong>{{ task }}</strong>, attempted {{ task.attempts }} time{{ task.attempts|pluralize }}<br>
+            Error: &quot;{{ task.error_message }}&quot;<br>
+          </a>
           <i class="fas fa-history"></i> Task will be retried at <strong>{{ task.run_at|date:'Y-m-d H:i:s' }}</strong>
-        </a>
+          <a href="{% url 'sync:run-task' pk=task.pk %}" class="error-text">
+            <i class="fas fa-undo"></i>
+          </a>
+        </div>
       {% empty %}
         <span class="collection-item no-items"><i class="fas fa-info-circle"></i> There are no tasks with errors on this page.</span>
       {% endfor %}
@@ -66,11 +71,17 @@
     </p>
     <div class="collection">
       {% for task in scheduled %}
-        <a href="{% url task.url pk=task.instance.pk %}" class="collection-item">
-          <i class="fas fa-stopwatch"></i> <strong>{{ task }}</strong><br>
-          {% if task.instance.index_schedule and task.repeat > 0 %}Scheduled to run {{ task.instance.get_index_schedule_display|lower }}.<br>{% endif %}
-          <i class="fas fa-redo"></i> Task will run {% if task.run_now %}<strong>immediately</strong>{% else %}at <strong>{{ task.run_at|date:'Y-m-d H:i:s' }}</strong>{% endif %}
-        </a>
+        <div class="collection-item">
+          <a href="{% url task.url pk=task.instance.pk %}">
+            <i class="fas fa-hourglass-start"></i> <strong>{{ task }}</strong><br>
+            {% if task.instance.index_schedule and task.repeat > 0 %}Scheduled to run {{ task.instance.get_index_schedule_display|lower }}.<br>{% endif %}
+            <i class="far fa-clock"></i> Task will run {% if task.run_now %}<strong>immediately</strong>{% else %}at <strong>{{ task.run_at|date:'Y-m-d H:i:s' }}</strong>
+          </a>
+          <a href="{% url 'sync:run-task' pk=task.pk %}">
+            <i class="far fa-play-circle"></i>
+          {% endif %}
+          </a>
+        </div>
       {% empty %}
         <span class="collection-item no-items"><i class="fas fa-info-circle"></i> There are no scheduled tasks on this page.</span>
       {% endfor %}

tubesync/sync/urls.py

@@ -3,7 +3,7 @@ from .views import (DashboardView, SourcesView, ValidateSourceView, AddSourceVie
                     SourceView, UpdateSourceView, DeleteSourceView, MediaView,
                     MediaThumbView, MediaItemView, MediaRedownloadView, MediaSkipView,
                     MediaEnableView, MediaContent, TasksView, CompletedTasksView, ResetTasks,
-                    MediaServersView, AddMediaServerView, MediaServerView,
+                    TaskScheduleView, MediaServersView, AddMediaServerView, MediaServerView,
                     DeleteMediaServerView, UpdateMediaServerView)
 
 
@@ -122,6 +122,18 @@ urlpatterns = [
         name='tasks',
     ),
 
+    path(
+        'task/<int:pk>/schedule/now',
+        TaskScheduleView.as_view(),
+        name='run-task',
+    ),
+
+    path(
+        'task/<int:pk>/schedule/<int:timestamp>',
+        TaskScheduleView.as_view(),
+        name='schedule-task',
+    ),
+
     path(
         'tasks-completed',
         CompletedTasksView.as_view(),

tubesync/sync/views.py

@@ -20,11 +20,12 @@ from django.utils.text import slugify
 from django.utils._os import safe_join
 from django.utils import timezone
 from django.utils.translation import gettext_lazy as _
+from common.timestamp import timestamp_to_datetime
 from common.utils import append_uri_params
 from background_task.models import Task, CompletedTask
 from .models import Source, Media, MediaServer
 from .forms import (ValidateSourceForm, ConfirmDeleteSourceForm, RedownloadMediaForm,
-                    SkipMediaForm, EnableMediaForm, ResetTasksForm,
+                    SkipMediaForm, EnableMediaForm, ResetTasksForm, ScheduleTaskForm,
                     ConfirmDeleteMediaServerForm)
 from .utils import validate_url, delete_file, multi_key_sort, mkdir_p
 from .tasks import (map_task_to_instance, get_error_message,
@@ -1005,6 +1006,84 @@ class ResetTasks(FormView):
         return append_uri_params(url, {'message': 'reset'})
 
 
+class TaskScheduleView(FormView, SingleObjectMixin):
+    '''
+        Confirm that the task should be re-scheduled.
+    '''
+
+    template_name = 'sync/task-schedule.html'
+    form_class = ScheduleTaskForm
+    model = Task
+    errors = dict(
+        invalid_when=_('The type ({}) was incorrect.'),
+    )
+
+    def __init__(self, *args, **kwargs):
+        self.object = None
+        self.timestamp = None
+        self.when = None
+        super().__init__(*args, **kwargs)
+
+    def dispatch(self, request, *args, **kwargs):
+        self.object = self.get_object()
+        self.timestamp = kwargs.get('timestamp', '')
+        try:
+            self.timestamp = int(self.timestamp, 10)
+        except (TypeError, ValueError):
+            self.timestamp = None
+        else:
+            try:
+                self.when = timestamp_to_datetime(self.timestamp)
+            except AssertionError:
+                self.when = None
+        if self.when is None:
+            self.when = timezone.now()
+        return super().dispatch(request, *args, **kwargs)
+
+    def get_initial(self):
+        initial = super().get_initial()
+        initial['when'] = self.when
+        return initial
+
+    def get_context_data(self, *args, **kwargs):
+        data = super().get_context_data(*args, **kwargs)
+        data['when'] = self.when
+        return data
+
+    def get_success_url(self):
+        return append_uri_params(
+            reverse_lazy('sync:tasks'),
+            dict(
+                message='scheduled',
+                pk=str(self.object.pk),
+            ),
+        )
+
+    def form_valid(self, form):
+        max_attempts = getattr(settings, 'MAX_ATTEMPTS', 15)
+        now = timezone.now()
+        when = form.cleaned_data.get('when')
+  
+        if not isinstance(when, now.__class__):
+            form.add_error(
+                'when',
+                ValidationError(
+                    errors['invalid_when'].format(
+                        type(when),
+                    ),
+                ),
+            )
+
+        if form.errors:
+            return super().form_invalid(form)
+
+        self.object.attempts = max_attempts // 2
+        self.object.run_at = when
+        self.object.save()
+
+        return super().form_valid(form)
+
+
 class MediaServersView(ListView):
     '''
         List of media servers which have been added.