Add download cleaner and dry run (#58)

code/Common/Configuration/Arr/ArrConfig.cs

@@ -11,9 +11,9 @@ public abstract record ArrConfig
     public required List<ArrInstance> Instances { get; init; }
 }
 
-public record Block
+public readonly record struct Block
 {
-    public BlocklistType Type { get; set; }
+    public BlocklistType Type { get; init; }
     
-    public string? Path { get; set; }
+    public string? Path { get; init; }
 }

code/Common/Configuration/DownloadCleaner/Category.cs

@@ -0,0 +1,45 @@
+using Common.Exceptions;
+using Microsoft.Extensions.Configuration;
+
+namespace Common.Configuration.DownloadCleaner;
+
+public sealed record Category : IConfig
+{
+    public required string Name { get; init; }
+
+    /// <summary>
+    /// Max ratio before removing a download.
+    /// </summary>
+    [ConfigurationKeyName("MAX_RATIO")]
+    public required double MaxRatio { get; init; } = -1;
+
+    /// <summary>
+    /// Min number of hours to seed before removing a download, if the ratio has been met.
+    /// </summary>
+    [ConfigurationKeyName("MIN_SEED_TIME")]
+    public required double MinSeedTime { get; init; } = 0;
+
+    /// <summary>
+    /// Number of hours to seed before removing a download.
+    /// </summary>
+    [ConfigurationKeyName("MAX_SEED_TIME")]
+    public required double MaxSeedTime { get; init; } = -1;
+
+    public void Validate()
+    {
+        if (string.IsNullOrWhiteSpace(Name))
+        {
+            throw new ValidationException($"{nameof(Name)} can not be empty");
+        }
+
+        if (MaxRatio < 0 && MaxSeedTime < 0)
+        {
+            throw new ValidationException($"both {nameof(MaxRatio)} and {nameof(MaxSeedTime)} are disabled");
+        }
+
+        if (MinSeedTime < 0)
+        {
+            throw new ValidationException($"{nameof(MinSeedTime)} can not be negative");
+        }
+    }
+}

code/Common/Configuration/DownloadCleaner/DownloadCleanerConfig.cs

@@ -0,0 +1,36 @@
+using Common.Exceptions;
+using Microsoft.Extensions.Configuration;
+
+namespace Common.Configuration.DownloadCleaner;
+
+public sealed record DownloadCleanerConfig : IJobConfig
+{
+    public const string SectionName = "DownloadCleaner";
+    
+    public bool Enabled { get; init; }
+    
+    public List<Category>? Categories { get; init; }
+
+    [ConfigurationKeyName("DELETE_PRIVATE")]
+    public bool DeletePrivate { get; set; }
+
+    public void Validate()
+    {
+        if (!Enabled)
+        {
+            return;
+        }
+        
+        if (Categories?.Count is null or 0)
+        {
+            throw new ValidationException("no categories configured");
+        }
+
+        if (Categories?.GroupBy(x => x.Name).Any(x => x.Count() > 1) is true)
+        {
+            throw new ValidationException("duplicated categories found");
+        }
+        
+        Categories?.ForEach(x => x.Validate());
+    }
+}

code/Common/Configuration/DownloadClient/DelugeConfig.cs

@@ -1,4 +1,6 @@
-namespace Common.Configuration.DownloadClient;
+using Common.Exceptions;
+
+namespace Common.Configuration.DownloadClient;
 
 public sealed record DelugeConfig : IConfig
 {
@@ -12,7 +14,7 @@ public sealed record DelugeConfig : IConfig
     {
         if (Url is null)
         {
-            throw new ArgumentNullException(nameof(Url));
+            throw new ValidationException($"{nameof(Url)} is empty");
         }
     }
 }

code/Common/Configuration/DownloadClient/QBitConfig.cs

@@ -1,4 +1,6 @@
-namespace Common.Configuration.DownloadClient;
+using Common.Exceptions;
+
+namespace Common.Configuration.DownloadClient;
 
 public sealed class QBitConfig : IConfig
 {
@@ -14,7 +16,7 @@ public sealed class QBitConfig : IConfig
     {
         if (Url is null)
         {
-            throw new ArgumentNullException(nameof(Url));
+            throw new ValidationException($"{nameof(Url)} is empty");
         }
     }
 }

code/Common/Configuration/DownloadClient/TransmissionConfig.cs

@@ -1,4 +1,6 @@
-namespace Common.Configuration.DownloadClient;
+using Common.Exceptions;
+
+namespace Common.Configuration.DownloadClient;
 
 public record TransmissionConfig : IConfig
 {
@@ -14,7 +16,7 @@ public record TransmissionConfig : IConfig
     {
         if (Url is null)
         {
-            throw new ArgumentNullException(nameof(Url));
+            throw new ValidationException($"{nameof(Url)} is empty");
         }
     }
 }

code/Common/Configuration/General/DryRunConfig.cs

@@ -0,0 +1,9 @@
+using Microsoft.Extensions.Configuration;
+
+namespace Common.Configuration.General;
+
+public sealed record DryRunConfig
+{
+    [ConfigurationKeyName("DRY_RUN")]
+    public bool IsDryRun { get; init; }
+}

code/Common/Configuration/General/HttpConfig.cs

@@ -1,8 +1,9 @@
-using Microsoft.Extensions.Configuration;
+using Common.Exceptions;
+using Microsoft.Extensions.Configuration;
 
 namespace Common.Configuration.General;
 
-public class HttpConfig : IConfig
+public sealed record HttpConfig : IConfig
 {
     [ConfigurationKeyName("HTTP_MAX_RETRIES")]
     public ushort MaxRetries { get; init; }
@@ -14,7 +15,7 @@ public class HttpConfig : IConfig
     {
         if (Timeout is 0)
         {
-            throw new ArgumentException("HTTP_TIMEOUT must be greater than 0");
+            throw new ValidationException("HTTP_TIMEOUT must be greater than 0");
         }
     }
 }

code/Common/Configuration/General/TriggersConfig.cs

@@ -7,4 +7,6 @@ public sealed class TriggersConfig
     public required string QueueCleaner { get; init; }
     
     public required string ContentBlocker { get; init; }
+    
+    public required string DownloadCleaner { get; init; }
 }

code/Common/Configuration/Notification/NotificationConfig.cs

@@ -10,10 +10,13 @@ public abstract record NotificationConfig
     [ConfigurationKeyName("ON_STALLED_STRIKE")]
     public bool OnStalledStrike { get; init; }
     
-    [ConfigurationKeyName("ON_QUEUE_ITEM_DELETE")]
-    public bool OnQueueItemDelete { get; init; }
+    [ConfigurationKeyName("ON_QUEUE_ITEM_DELETED")]
+    public bool OnQueueItemDeleted { get; init; }
+    
+    [ConfigurationKeyName("ON_DOWNLOAD_CLEANED")]
+    public bool OnDownloadCleaned { get; init; }
 
-    public bool IsEnabled => OnImportFailedStrike || OnStalledStrike || OnQueueItemDelete;
+    public bool IsEnabled => OnImportFailedStrike || OnStalledStrike || OnQueueItemDeleted || OnDownloadCleaned;
 
     public abstract bool IsValid();
 }