1 files changed, 152 insertions, 0 deletions
diff --git a/Jellyfin.Server.Implementations/Events/Consumers/TaskCompletedLogger.cs b/Jellyfin.Server.Implementations/Events/Consumers/TaskCompletedLogger.cs
new file mode 100644
index 000000000..faca66ffd
--- /dev/null
+++ b/Jellyfin.Server.Implementations/Events/Consumers/TaskCompletedLogger.cs
@@ -0,0 +1,152 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Threading.Tasks;
+using Jellyfin.Data.Entities;
+using MediaBrowser.Controller.Events;
+using MediaBrowser.Model.Activity;
+using MediaBrowser.Model.Globalization;
+using MediaBrowser.Model.Notifications;
+using MediaBrowser.Model.Tasks;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Implementations.Events.Consumers
+{
+    /// <summary>
+    /// Creates an activity log entry whenever a task is completed.
+    /// </summary>
+    public class TaskCompletedLogger : IEventConsumer<TaskCompletionEventArgs>
+    {
+        private readonly ILocalizationManager _localizationManager;
+        private readonly IActivityManager _activityManager;
+
+        public TaskCompletedLogger(ILocalizationManager localizationManager, IActivityManager activityManager)
+        {
+            _localizationManager = localizationManager;
+            _activityManager = activityManager;
+        }
+
+        public async Task OnEvent(TaskCompletionEventArgs e)
+        {
+            var result = e.Result;
+            var task = e.Task;
+
+            if (task.ScheduledTask is IConfigurableScheduledTask activityTask
+                && !activityTask.IsLogged)
+            {
+                return;
+            }
+
+            var time = result.EndTimeUtc - result.StartTimeUtc;
+            var runningTime = string.Format(
+                CultureInfo.InvariantCulture,
+                _localizationManager.GetLocalizedString("LabelRunningTimeValue"),
+                ToUserFriendlyString(time));
+
+            if (result.Status == TaskCompletionStatus.Failed)
+            {
+                var vals = new List<string>();
+
+                if (!string.IsNullOrEmpty(e.Result.ErrorMessage))
+                {
+                    vals.Add(e.Result.ErrorMessage);
+                }
+
+                if (!string.IsNullOrEmpty(e.Result.LongErrorMessage))
+                {
+                    vals.Add(e.Result.LongErrorMessage);
+                }
+
+                await _activityManager.CreateAsync(new ActivityLog(
+                    string.Format(CultureInfo.InvariantCulture, _localizationManager.GetLocalizedString("ScheduledTaskFailedWithName"), task.Name),
+                    NotificationType.TaskFailed.ToString(),
+                    Guid.Empty)
+                {
+                    LogSeverity = LogLevel.Error,
+                    Overview = string.Join(Environment.NewLine, vals),
+                    ShortOverview = runningTime
+                }).ConfigureAwait(false);
+            }
+        }
+
+        private static string ToUserFriendlyString(TimeSpan span)
+        {
+            const int DaysInYear = 365;
+            const int DaysInMonth = 30;
+
+            // Get each non-zero value from TimeSpan component
+            var values = new List<string>();
+
+            // Number of years
+            int days = span.Days;
+            if (days >= DaysInYear)
+            {
+                int years = days / DaysInYear;
+                values.Add(CreateValueString(years, "year"));
+                days %= DaysInYear;
+            }
+
+            // Number of months
+            if (days >= DaysInMonth)
+            {
+                int months = days / DaysInMonth;
+                values.Add(CreateValueString(months, "month"));
+                days = days % DaysInMonth;
+            }
+
+            // Number of days
+            if (days >= 1)
+            {
+                values.Add(CreateValueString(days, "day"));
+            }
+
+            // Number of hours
+            if (span.Hours >= 1)
+            {
+                values.Add(CreateValueString(span.Hours, "hour"));
+            }
+
+            // Number of minutes
+            if (span.Minutes >= 1)
+            {
+                values.Add(CreateValueString(span.Minutes, "minute"));
+            }
+
+            // Number of seconds (include when 0 if no other components included)
+            if (span.Seconds >= 1 || values.Count == 0)
+            {
+                values.Add(CreateValueString(span.Seconds, "second"));
+            }
+
+            // Combine values into string
+            var builder = new StringBuilder();
+            for (int i = 0; i < values.Count; i++)
+            {
+                if (builder.Length > 0)
+                {
+                    builder.Append(i == values.Count - 1 ? " and " : ", ");
+                }
+
+                builder.Append(values[i]);
+            }
+
+            // Return result
+            return builder.ToString();
+        }
+
+        /// <summary>
+        /// Constructs a string description of a time-span value.
+        /// </summary>
+        /// <param name="value">The value of this item.</param>
+        /// <param name="description">The name of this item (singular form).</param>
+        private static string CreateValueString(int value, string description)
+        {
+            return string.Format(
+                CultureInfo.InvariantCulture,
+                "{0:#,##0} {1}",
+                value,
+                value == 1 ? description : string.Format(CultureInfo.InvariantCulture, "{0}s", description));
+        }
+    }
+}