From 9f16d9b2fcf9b937d4fc46631f9bd3d813eb43f5 Mon Sep 17 00:00:00 2001
From: Taloth Saldono <Taloth@users.noreply.github.com>
Date: Wed, 21 Nov 2018 22:02:51 +0100
Subject: [PATCH] Fixed: File names and release titles lacking a series title
 and starting with the Air date.

fixes #2825
---
 .../ParserTests/DailyEpisodeParserFixture.cs              | 2 ++
 src/NzbDrone.Core/Parser/Parser.cs                        | 8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/NzbDrone.Core.Test/ParserTests/DailyEpisodeParserFixture.cs b/src/NzbDrone.Core.Test/ParserTests/DailyEpisodeParserFixture.cs
index 0a915b0fd..f0b530261 100644
--- a/src/NzbDrone.Core.Test/ParserTests/DailyEpisodeParserFixture.cs
+++ b/src/NzbDrone.Core.Test/ParserTests/DailyEpisodeParserFixture.cs
@@ -28,6 +28,8 @@ namespace NzbDrone.Core.Test.ParserTests
         //[TestCase("Corrie.07.01.15", "Corrie", 2015, 1, 7)]
         [TestCase("The Nightly Show with Larry Wilmore 2015 02 09 WEBRIP s01e13", "The Nightly Show with Larry Wilmore", 2015, 2, 9)]
         [TestCase("Jimmy_Fallon_2018_06_22_Seth_Meyers_720p_HEVC_x265-MeGusta", "Jimmy Fallon", 2018, 6, 22)]
+        [TestCase("20161024- Exotic Payback.21x41_720.mkv", "", 2016, 10, 24)]
+        [TestCase("2018-11-14.1080.all.mp4", "", 2018, 11, 14)]
         //[TestCase("", "", 0, 0, 0)]
         public void should_parse_daily_episode(string postTitle, string title, int year, int month, int day)
         {
diff --git a/src/NzbDrone.Core/Parser/Parser.cs b/src/NzbDrone.Core/Parser/Parser.cs
index 41adfc35f..884d2bec2 100644
--- a/src/NzbDrone.Core/Parser/Parser.cs
+++ b/src/NzbDrone.Core/Parser/Parser.cs
@@ -22,6 +22,10 @@ namespace NzbDrone.Core.Parser
 //                new Regex(@"^(?:(?<absoluteepisode>\d{2,3})(?:_|-|\s|\.)+)+(?<title>.+?)(?:\W|_)+(?:S?(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:(?:\-|[ex]|\W[ex]){1,2}(?<episode>\d{2}(?!\d+)))+)",
 //                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
+                //Daily episodes without title (2018-10-12, 20181012) (Strict pattern to avoid false matches)
+                new Regex(@"^(?<airyear>19[6-9]\d|20\d\d)(?<sep>[-]?)(?<airmonth>0\d|1[0-2])\k<sep>(?<airday>[0-2]\d|3[01])(?!\d)",
+                          RegexOptions.IgnoreCase | RegexOptions.Compiled),
+
                 //Multi-Part episodes without a title (S01E05.S01E06)
                 new Regex(@"^(?:\W*S?(?<season>(?<!\d+)(?:\d{1,2}|\d{4})(?!\d+))(?:(?:[ex]){1,2}(?<episode>\d{1,3}(?!\d+)))+){2,}",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
@@ -173,7 +177,7 @@ namespace NzbDrone.Core.Parser
                 // Anime - French titles with single episode numbers, with or without leading sub group ([RlsGroup] Title - Episode 1)
                 new Regex(@"^(?:\[(?<subgroup>.+?)\][-_. ]?)?(?<title>.+?)[-_. ]+?(?:Episode[-_. ]+?)(?<absoluteepisode>\d{1}(?!\d+))",
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
-            
+
                 //Season only releases
                 new Regex(@"^(?<title>.+?)\W(?:S|Season)\W?(?<season>\d{1,2}(?!\d+))(\W+|_|$)(?<extras>EXTRAS|SUBPACK)?(?!\\)",
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
@@ -282,7 +286,7 @@ namespace NzbDrone.Core.Parser
                 new Regex(@"^b00bs$", RegexOptions.Compiled | RegexOptions.IgnoreCase),
 
                 // 170424_26 - Started appearing August 2018
-                new Regex(@"^\d{6}_\d{2}$"), 
+                new Regex(@"^\d{6}_\d{2}$"),
             };
 
         //Regex to detect whether the title was reversed.