From 52dfa42283541ff48cce3a6cbdf4e2e2e8567a30 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Sat, 9 Dec 2023 14:21:21 +0100
Subject: Local anime: parse SXXEXX pattern

---
 src/plugins/utils/EpisodeNameParser.cpp | 65 +++++++++++++++++++++++++++------
 1 file changed, 54 insertions(+), 11 deletions(-)

(limited to 'src/plugins')

diff --git a/src/plugins/utils/EpisodeNameParser.cpp b/src/plugins/utils/EpisodeNameParser.cpp
index e314953..8610ab0 100644
--- a/src/plugins/utils/EpisodeNameParser.cpp
+++ b/src/plugins/utils/EpisodeNameParser.cpp
@@ -1,6 +1,39 @@
 #include "../../../plugins/utils/EpisodeNameParser.hpp"
 
 namespace QuickMedia {
+    static bool is_num(char c) {
+        return c >= '0' && c <= '9';
+    }
+
+    static bool char_to_num(char c) {
+        return c - '0';
+    }
+
+    // Finds and parses SXXEXX where X is a number, returns the index to after the pattern or std::string_view::npos
+    static size_t parse_season_episode_pattern(std::string_view episode_name, int *season, int *episode) {
+        *season = 0;
+        *episode = 0;
+
+        size_t index = 0;
+        while(true) {
+            index = episode_name.find('S', index);
+            if(index == std::string_view::npos)
+                return std::string_view::npos;
+
+            if(index + 6 >= episode_name.size())
+                return std::string_view::npos;
+
+            if(is_num(episode_name[index + 1]) && is_num(episode_name[index + 2]) && episode_name[index + 3] == 'E'
+                && is_num(episode_name[index + 4]) && is_num(episode_name[index + 5]))
+            {
+                *season = char_to_num(episode_name[index + 1]) * 10 + char_to_num(episode_name[index + 2]);
+                *episode = char_to_num(episode_name[index + 4]) * 10 + char_to_num(episode_name[index + 5]);
+                return index + 6;
+            }
+            ++index;
+        }
+    }
+
     static bool has_season_in_name(std::string_view episode_name) {
         size_t sep_count = 0;
         size_t index = 0;
@@ -96,20 +129,30 @@ namespace QuickMedia {
     }
 
     std::optional<EpisodeNameParts> episode_name_extract_parts(std::string_view episode_name) {
+        const std::string_view full_episode_name = episode_name;
         EpisodeNameParts name_parts;
-        const bool has_season = has_season_in_name(episode_name);
+
+        int season = 0;
+        int episode = 0;
+        size_t after_season_episode_pattern = parse_season_episode_pattern(episode_name, &season, &episode);
+        const bool has_season = after_season_episode_pattern != std::string_view::npos || has_season_in_name(episode_name);
 
         name_parts.group = episode_name_extract_group(episode_name);
         name_parts.anime = episode_name_extract_anime(episode_name);
         if(name_parts.anime.empty())
             return std::nullopt;
         
-        if(has_season)
-            name_parts.season = episode_name_extract_season(episode_name);
-
-        name_parts.episode = episode_name_extract_episode(episode_name);
-        if(name_parts.episode.empty())
-            return std::nullopt;
+        if(after_season_episode_pattern == std::string_view::npos) {
+            if(has_season)
+                name_parts.season = episode_name_extract_season(episode_name);
+
+            name_parts.episode = episode_name_extract_episode(episode_name);
+            if(name_parts.episode.empty())
+                return std::nullopt;
+        } else {
+            name_parts.season = full_episode_name.substr(after_season_episode_pattern - 5, 2);
+            name_parts.episode = full_episode_name.substr(after_season_episode_pattern - 2, 2);
+        }
 
         if(episode_name.find("480p") != std::string_view::npos)
             name_parts.resolution = "480p";
@@ -118,13 +161,13 @@ namespace QuickMedia {
         else if(episode_name.find("1080p") != std::string_view::npos)
             name_parts.resolution = "1080p";
         else if(episode_name.find("2160p") != std::string_view::npos)
-            name_parts.resolution = "2160p";
+            name_parts.resolution = "4k";
         else if(episode_name.find("1280x720") != std::string_view::npos)
-            name_parts.resolution = "1280x720";
+            name_parts.resolution = "720p";
         else if(episode_name.find("1920x1080") != std::string_view::npos)
-            name_parts.resolution = "1920x1080";
+            name_parts.resolution = "1080p";
         else if(episode_name.find("3840x2160") != std::string_view::npos)
-            name_parts.resolution = "3840x2160";
+            name_parts.resolution = "4k";
 
         if(ends_with(episode_name, ".mkv"))
             name_parts.file_ext = ".mkv";
-- 
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