New: (Avistaz) Freeleech Only Setting

#1108

src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazRequestGenerator.cs

@@ -34,6 +34,11 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
                 { "type", categoryMapping.Any() ? categoryMapping.First() : "0" }
             };
 
+            if (Settings.FreeleechOnly)
+            {
+                qc.Add("discount[]", "1");
+            }
+
             // resolution filter to improve the search
             if (!categories.Contains(NewznabStandardCategory.Movies.Id) && !categories.Contains(NewznabStandardCategory.TV.Id) &&
                 !categories.Contains(NewznabStandardCategory.Audio.Id))

src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazSettings.cs

@@ -22,6 +22,7 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
         public AvistazSettings()
         {
             Token = "";
+            FreeleechOnly = false;
         }
 
         public string Token { get; set; }
@@ -35,6 +36,9 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
         [FieldDefinition(4, Label = "PID", HelpText = "PID from My Account or My Profile page")]
         public string Pid { get; set; }
 
+        [FieldDefinition(5, Label = "Freeleech Only", HelpText = "Search freeleech only")]
+        public bool FreeleechOnly { get; set; }
+
         public override NzbDroneValidationResult Validate()
         {
             return new NzbDroneValidationResult(Validator.Validate(this));