refactor(shared): extract player payload decoding logic into shared library

Move player payload extraction and decoding logic from individual modules
(AnimeON, Mikai, NMoonAnime) into a new LME.Shared library. This reduces
code duplication and centralizes the parsing logic for better maintainability.
The new PlayerJsDecoder class handles various player script formats including
atob-encoded payloads, JSON.parse helpers, and different file payload structures.
All consuming modules now reference the shared project and use the common decoder.

Also fix typo in NMoonAnime Controller (Firts -> First).

LME.AnimeON/AnimeON.csproj

@@ -10,6 +10,7 @@
     <Reference Include="Shared">  
       <HintPath>..\..\Shared.dll</HintPath>  
     </Reference>  
+    <ProjectReference Include="..\LME.Shared\LME.Shared.csproj" />
   </ItemGroup>  
   
 </Project>

LME.AnimeON/AnimeONInvoke.cs

@@ -6,11 +6,14 @@ using Shared.Models.Online.Settings;
 using Shared.Models;
 using Shared.Models.Templates;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 using System.Linq;
 using System.Text;
 using System.Net;
 using System.Text.RegularExpressions;
 using LME.AnimeON.Models;
+using LME.Shared;
+using LME.Shared.Models;
 using Shared.Engine;
 
 namespace LME.AnimeON
@@ -183,11 +186,12 @@ namespace LME.AnimeON
                 if (string.IsNullOrEmpty(html))
                     return null;
 
-                var match = System.Text.RegularExpressions.Regex.Match(html, @"file:\s*""([^""]+\.m3u8)""");
-                if (match.Success)
-                {
-                    return match.Groups[1].Value;
-                }
+                var payload = PlayerJsDecoder.ExtractPlayerPayload(html);
+                if (payload?.FilePayload == null)
+                    return null;
+
+                var streamUrls = ExtractStreamUrls(payload.FilePayload);
+                return streamUrls?.FirstOrDefault();
             }
             catch (Exception ex)
             {
@@ -197,6 +201,61 @@ namespace LME.AnimeON
             return null;
         }
 
+        private List<string> ExtractStreamUrls(object filePayload)
+        {
+            var urls = new List<string>();
+            if (filePayload == null)
+                return urls;
+
+            // Обробка string значення
+            if (filePayload is string strPayload)
+            {
+                urls.Add(strPayload);
+                return urls;
+            }
+
+            // Обробка JsonValue
+            if (filePayload is JsonValue jsonValue && jsonValue.TryGetValue<string>(out string strValue))
+            {
+                urls.Add(strValue);
+                return urls;
+            }
+
+            // Обробка JsonObject — витягти 'file' поле
+            if (filePayload is JsonObject objPayload)
+            {
+                if (objPayload.TryGetPropertyValue("file", out JsonNode fileNode))
+                {
+                    string fileStr = fileNode?.ToString();
+                    if (!string.IsNullOrEmpty(fileStr))
+                        urls.Add(fileStr);
+                }
+                return urls;
+            }
+
+            // Обробка JsonArray
+            if (filePayload is JsonArray arrayPayload)
+            {
+                foreach (var item in arrayPayload)
+                {
+                    if (item is JsonObject itemObj && itemObj.TryGetPropertyValue("file", out JsonNode fileProp))
+                    {
+                        string fileStr = fileProp?.ToString();
+                        if (!string.IsNullOrEmpty(fileStr))
+                            urls.Add(fileStr);
+                    }
+                    else if (item is JsonValue itemValue && itemValue.TryGetValue<string>(out string itemStr))
+                    {
+                        if (!string.IsNullOrEmpty(itemStr))
+                            urls.Add(itemStr);
+                    }
+                }
+                return urls;
+            }
+
+            return urls;
+        }
+
         public async Task<string> ParseAshdiPage(string url, bool disableAshdiMultivoiceForVod = false)
         {
             var streams = await ParseAshdiPageStreams(url, disableAshdiMultivoiceForVod);

LME.Mikai/Mikai.csproj

@@ -10,6 +10,7 @@
     <Reference Include="Shared">
       <HintPath>..\..\Shared.dll</HintPath>
     </Reference>
+    <ProjectReference Include="..\LME.Shared\LME.Shared.csproj" />
   </ItemGroup>
 
 </Project>

LME.Mikai/MikaiInvoke.cs

@@ -2,11 +2,14 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json;
+using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using System.Web;
 using System.Net;
 using System.Text.RegularExpressions;
 using LME.Mikai.Models;
+using LME.Shared;
+using LME.Shared.Models;
 using Shared;
 using Shared.Engine;
 using Shared.Models;
@@ -158,16 +161,73 @@ namespace LME.Mikai
                 if (string.IsNullOrEmpty(html))
                     return null;
 
-                var match = System.Text.RegularExpressions.Regex.Match(html, @"file:\s*""([^""]+\.m3u8)""");
-                if (match.Success)
-                    return match.Groups[1].Value;
+                var payload = PlayerJsDecoder.ExtractPlayerPayload(html);
+                if (payload?.FilePayload == null)
+                    return null;
+
+                var streamUrls = ExtractStreamUrls(payload.FilePayload);
+                return streamUrls?.FirstOrDefault();
             }
             catch (Exception ex)
             {
                 _onLog($"Mikai ParseMoonAnimePage error: {ex.Message}");
+                return null;
+            }
+        }
+
+        private List<string> ExtractStreamUrls(object filePayload)
+        {
+            var urls = new List<string>();
+            if (filePayload == null)
+                return urls;
+
+            // Обробка string значення
+            if (filePayload is string strPayload)
+            {
+                urls.Add(strPayload);
+                return urls;
             }
 
-            return null;
+            // Обробка JsonValue
+            if (filePayload is JsonValue jsonValue && jsonValue.TryGetValue<string>(out string strValue))
+            {
+                urls.Add(strValue);
+                return urls;
+            }
+
+            // Обробка JsonObject — витягти 'file' поле
+            if (filePayload is JsonObject objPayload)
+            {
+                if (objPayload.TryGetPropertyValue("file", out JsonNode fileNode))
+                {
+                    string fileStr = fileNode?.ToString();
+                    if (!string.IsNullOrEmpty(fileStr))
+                        urls.Add(fileStr);
+                }
+                return urls;
+            }
+
+            // Обробка JsonArray
+            if (filePayload is JsonArray arrayPayload)
+            {
+                foreach (var item in arrayPayload)
+                {
+                    if (item is JsonObject itemObj && itemObj.TryGetPropertyValue("file", out JsonNode fileProp))
+                    {
+                        string fileStr = fileProp?.ToString();
+                        if (!string.IsNullOrEmpty(fileStr))
+                            urls.Add(fileStr);
+                    }
+                    else if (item is JsonValue itemValue && itemValue.TryGetValue<string>(out string itemStr))
+                    {
+                        if (!string.IsNullOrEmpty(itemStr))
+                            urls.Add(itemStr);
+                    }
+                }
+                return urls;
+            }
+
+            return urls;
         }
 
         string AshdiRequestUrl(string url)

LME.NMoonAnime/Controller.cs

@@ -109,7 +109,7 @@ namespace LME.NMoonAnime.Controllers
             if (!streamQuality.Any())
                 return OnError("lme_nmoonanime", refresh_proxy: true);
 
-            var first = streamQuality.Firts();
+            var first = streamQuality.First();
             string json = VideoTpl.ToJson("play", first.link, title ?? string.Empty, streamquality: streamQuality);
             return UpdateService.Validate(Content(json, "application/json; charset=utf-8"));
         }

LME.NMoonAnime/NMoonAnime.csproj

@@ -10,6 +10,7 @@
     <Reference Include="Shared">
       <HintPath>..\..\Shared.dll</HintPath>
     </Reference>
+    <ProjectReference Include="..\LME.Shared\LME.Shared.csproj" />
   </ItemGroup>
 
 </Project>

LME.NMoonAnime/NMoonAnimeInvoke.cs

@@ -1,4 +1,6 @@
 using LME.NMoonAnime.Models;
+using LME.Shared;
+using LME.Shared.Models;
 using Shared;
 using Shared.Engine;
 using Shared.Models;
@@ -29,12 +31,6 @@ namespace LME.NMoonAnime
         };
         private static readonly Regex _reSeason = new Regex(@"(?:season|сезон)\s*(\d+)|(\d+)\s*(?:season|сезон)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
         private static readonly Regex _reEpisode = new Regex(@"(?:episode|серія|серия|епізод|ep)\s*(\d+)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
-        private static readonly Regex _reTrailingComma = new Regex(@",\s*([}\]])", RegexOptions.Compiled);
-        private static readonly Regex _reAtobLiteral = new Regex(@"atob\(\s*(['""])(?<payload>[A-Za-z0-9+/=]+)\1\s*\)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
-        private static readonly Regex _reJsonParseHelper = new Regex(@"JSON\.parse\(\s*(?<fn>[A-Za-z_$][\w$]*)\(\s*(?<quote>['""])(?<payload>.*?)(\k<quote>)\s*\)\s*\)", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
-        private static readonly Regex _reHelperCall = new Regex(@"^\s*(?<fn>[A-Za-z_$][\w$]*)\(\s*(?<quote>['""])(?<payload>.*?)(\k<quote>)\s*\)\s*$", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
-        private static readonly UTF8Encoding _utf8Strict = new UTF8Encoding(false, true);
-        private static readonly Encoding _latin1 = Encoding.GetEncoding("ISO-8859-1");
 
         public NMoonAnimeInvoke(OnlinesSettings init, IHybridCache hybridCache, Action<string> onLog, ProxyManager proxyManager, HttpHydra httpHydra = null)
         {
@@ -241,7 +237,7 @@ namespace LME.NMoonAnime
                 IsSeries = false
             };
 
-            var payload = ExtractPlayerPayload(html);
+            var payload = PlayerJsDecoder.ExtractPlayerPayload(html);
             if (payload == null)
                 return content;
 
@@ -495,437 +491,14 @@ namespace LME.NMoonAnime
             return entries;
         }
 
-        private PlayerPayload ExtractPlayerPayload(string htmlText)
-        {
-            string cleanHtml = WebUtility.HtmlDecode(htmlText ?? string.Empty);
-            if (string.IsNullOrWhiteSpace(cleanHtml))
-                return null;
-
-            var candidates = new List<string> { cleanHtml };
-            string decodedScript = DecodeOuterPlayerScript(cleanHtml);
-            if (!string.IsNullOrWhiteSpace(decodedScript))
-                candidates.Insert(0, decodedScript);
-
-            foreach (string sourceText in candidates)
-            {
-                string objectText = ExtractObjectByBraces(sourceText, "new Playerjs");
-                if (string.IsNullOrWhiteSpace(objectText))
-                    objectText = ExtractObjectByBraces(sourceText, "Playerjs({");
-
-                string searchText = string.IsNullOrWhiteSpace(objectText) ? sourceText : objectText;
-
-                string fileValue = ExtractJsValue(searchText, "file");
-                if (fileValue == null && !string.IsNullOrWhiteSpace(objectText))
-                    fileValue = ExtractJsValue(sourceText, "file");
-                if (fileValue == null)
-                    continue;
-
-                string titleValue = ExtractJsValue(searchText, "title");
-                object parsedFile = ParsePlayerFileValue(fileValue, sourceText);
-
-                return new PlayerPayload
-                {
-                    Title = Nullish(titleValue),
-                    FilePayload = parsedFile
-                };
-            }
-
-            return null;
-        }
-
-        private object ParsePlayerFileValue(string rawValue, string contextText)
-        {
-            string text = rawValue?.Trim();
-            if (string.IsNullOrWhiteSpace(text))
-                return rawValue;
-
-            if (text.StartsWith("[") || text.StartsWith("{"))
-            {
-                JsonNode loaded = LoadJsonLoose(text);
-                if (loaded != null)
-                    return loaded;
-            }
-
-            var parseMatch = _reJsonParseHelper.Match(text);
-            if (parseMatch.Success)
-            {
-                string decoded = DecodeHelperPayload(parseMatch.Groups["fn"].Value, parseMatch.Groups["payload"].Value, contextText);
-                if (!string.IsNullOrWhiteSpace(decoded))
-                {
-                    JsonNode loaded = LoadJsonLoose(decoded);
-                    if (loaded != null)
-                        return loaded;
-                }
-            }
-
-            var helperMatch = _reHelperCall.Match(text);
-            if (helperMatch.Success)
-            {
-                string decoded = DecodeHelperPayload(helperMatch.Groups["fn"].Value, helperMatch.Groups["payload"].Value, contextText);
-                if (!string.IsNullOrWhiteSpace(decoded))
-                {
-                    JsonNode loaded = LoadJsonLoose(decoded);
-                    if (loaded != null)
-                        return loaded;
-
-                    return decoded;
-                }
-            }
-
-            return rawValue;
-        }
-
-        private string DecodeHelperPayload(string helperName, string payload, string contextText)
-        {
-            if (string.IsNullOrWhiteSpace(helperName))
-                return null;
-
-            if (helperName.Equals("atob", StringComparison.OrdinalIgnoreCase))
-            {
-                byte[] rawBytes = SafeBase64Decode(payload);
-                return rawBytes == null ? null : DecodeBytes(rawBytes);
-            }
-
-            string helperKey = ExtractHelperKey(contextText, helperName);
-            if (string.IsNullOrWhiteSpace(helperKey))
-                return null;
-
-            byte[] keyBytes = Encoding.UTF8.GetBytes(helperKey);
-            if (keyBytes.Length == 0)
-                return null;
-
-            byte[] payloadBytes = SafeBase64Decode(payload);
-            if (payloadBytes == null)
-                return null;
-
-            var decoded = new byte[payloadBytes.Length];
-            for (int index = 0; index < payloadBytes.Length; index++)
-                decoded[index] = (byte)(payloadBytes[index] ^ keyBytes[index % keyBytes.Length]);
-
-            return DecodeBytes(decoded);
-        }
-
-        private static string ExtractHelperKey(string contextText, string helperName)
-        {
-            if (string.IsNullOrWhiteSpace(contextText) || string.IsNullOrWhiteSpace(helperName))
-                return null;
-
-            string pattern = $@"function\s+{Regex.Escape(helperName)}\s*\([^)]*\)\s*\{{[\s\S]*?var\s+k\s*=\s*(['""])(?<key>.*?)\1";
-            var match = Regex.Match(contextText, pattern, RegexOptions.IgnoreCase);
-            if (!match.Success)
-                return null;
-
-            return Nullish(match.Groups["key"].Value);
-        }
-
-        private static string DecodeOuterPlayerScript(string text)
-        {
-            if (string.IsNullOrWhiteSpace(text))
-                return null;
-
-            var match = _reAtobLiteral.Match(text);
-            if (!match.Success)
-                return null;
-
-            byte[] rawData = SafeBase64Decode(match.Groups["payload"].Value);
-            if (rawData == null || rawData.Length <= 32)
-                return null;
-
-            byte[] key = rawData.Take(32).ToArray();
-            byte[] encryptedData = rawData.Skip(32).ToArray();
-            var decoded = new byte[encryptedData.Length];
-
-            for (int index = 0; index < encryptedData.Length; index++)
-                decoded[index] = (byte)(encryptedData[index] ^ key[index % key.Length]);
-
-            return DecodeBytes(decoded);
-        }
-
-        private static byte[] SafeBase64Decode(string value)
-        {
-            string text = value?.Trim();
-            if (string.IsNullOrWhiteSpace(text))
-                return null;
-
-            int remainder = text.Length % 4;
-            if (remainder != 0)
-                text += new string('=', 4 - remainder);
-
-            try
-            {
-                return Convert.FromBase64String(text);
-            }
-            catch
-            {
-                return null;
-            }
-        }
-
-        private static string DecodeBytes(byte[] data)
-        {
-            if (data == null || data.Length == 0)
-                return null;
-
-            try
-            {
-                return _utf8Strict.GetString(data);
-            }
-            catch
-            {
-                return _latin1.GetString(data);
-            }
-        }
-
-        private static string ExtractObjectByBraces(string text, string anchor)
-        {
-            if (string.IsNullOrWhiteSpace(text) || string.IsNullOrWhiteSpace(anchor))
-                return null;
-
-            int anchorIndex = text.IndexOf(anchor, StringComparison.OrdinalIgnoreCase);
-            if (anchorIndex < 0)
-                return null;
-
-            int braceIndex = text.IndexOf('{', anchorIndex);
-            if (braceIndex < 0)
-                return null;
-
-            int depth = 0;
-            bool escaped = false;
-            char? inString = null;
-
-            for (int index = braceIndex; index < text.Length; index++)
-            {
-                char current = text[index];
-
-                if (inString.HasValue)
-                {
-                    if (escaped)
-                    {
-                        escaped = false;
-                        continue;
-                    }
-
-                    if (current == '\\')
-                    {
-                        escaped = true;
-                        continue;
-                    }
-
-                    if (current == inString.Value)
-                        inString = null;
-
-                    continue;
-                }
-
-                if (current == '"' || current == '\'')
-                {
-                    inString = current;
-                    continue;
-                }
-
-                if (current == '{')
-                {
-                    depth++;
-                    continue;
-                }
-
-                if (current == '}')
-                {
-                    depth--;
-                    if (depth == 0)
-                        return text.Substring(braceIndex + 1, index - braceIndex - 1);
-                }
-            }
-
-            return null;
-        }
-
-        private static string ExtractJsValue(string text, string key)
-        {
-            if (string.IsNullOrWhiteSpace(text) || string.IsNullOrWhiteSpace(key))
-                return null;
-
-            var match = Regex.Match(text, $@"\b{Regex.Escape(key)}\b\s*:\s*", RegexOptions.IgnoreCase);
-            if (!match.Success)
-                return null;
-
-            int index = match.Index + match.Length;
-            while (index < text.Length && char.IsWhiteSpace(text[index]))
-                index++;
-
-            if (index >= text.Length)
-                return null;
-
-            char token = text[index];
-            if (token == '"' || token == '\'')
-            {
-                var (value, _) = ReadJsString(text, index);
-                return value;
-            }
-
-            if (token == '[')
-            {
-                int endIndex = FindMatchingBracket(text, index, '[', ']');
-                return endIndex >= index ? text.Substring(index, endIndex - index + 1) : null;
-            }
-
-            if (token == '{')
-            {
-                int endIndex = FindMatchingBracket(text, index, '{', '}');
-                return endIndex >= index ? text.Substring(index, endIndex - index + 1) : null;
-            }
-
-            int stopIndex = index;
-            while (stopIndex < text.Length && text[stopIndex] != ',' && text[stopIndex] != '}' && text[stopIndex] != '\n' && text[stopIndex] != '\r')
-                stopIndex++;
-
-            return text.Substring(index, stopIndex - index).Trim();
-        }
-
-        private static (string value, int nextIndex) ReadJsString(string text, int startIndex)
-        {
-            if (string.IsNullOrWhiteSpace(text) || startIndex < 0 || startIndex >= text.Length)
-                return (null, -1);
-
-            char quote = text[startIndex];
-            if (quote != '"' && quote != '\'')
-                return (null, -1);
-
-            var buffer = new StringBuilder();
-            bool escaped = false;
-
-            for (int index = startIndex + 1; index < text.Length; index++)
-            {
-                char current = text[index];
-
-                if (escaped)
-                {
-                    buffer.Append(current);
-                    escaped = false;
-                    continue;
-                }
-
-                if (current == '\\')
-                {
-                    escaped = true;
-                    continue;
-                }
-
-                if (current == quote)
-                    return (buffer.ToString(), index + 1);
-
-                buffer.Append(current);
-            }
-
-            return (null, -1);
-        }
-
-        private static int FindMatchingBracket(string text, int startIndex, char openChar, char closeChar)
-        {
-            if (string.IsNullOrWhiteSpace(text) || startIndex < 0 || startIndex >= text.Length || text[startIndex] != openChar)
-                return -1;
-
-            int depth = 0;
-            bool escaped = false;
-            char? inString = null;
-
-            for (int index = startIndex; index < text.Length; index++)
-            {
-                char current = text[index];
-
-                if (inString.HasValue)
-                {
-                    if (escaped)
-                    {
-                        escaped = false;
-                        continue;
-                    }
-
-                    if (current == '\\')
-                    {
-                        escaped = true;
-                        continue;
-                    }
-
-                    if (current == inString.Value)
-                        inString = null;
-
-                    continue;
-                }
-
-                if (current == '"' || current == '\'')
-                {
-                    inString = current;
-                    continue;
-                }
-
-                if (current == openChar)
-                {
-                    depth++;
-                    continue;
-                }
-
-                if (current == closeChar)
-                {
-                    depth--;
-                    if (depth == 0)
-                        return index;
-                }
-            }
-
-            return -1;
-        }
-
         private static JsonNode LoadJsonLoose(string value)
         {
-            string text = value?.Trim();
-            if (string.IsNullOrWhiteSpace(text))
-                return null;
-
-            string normalized = WebUtility.HtmlDecode(text).Replace("\\/", "/");
-            string unescapedQuotes = normalized.Replace("\\'", "'").Replace("\\\"", "\"");
-            var candidates = new[]
-            {
-                normalized,
-                unescapedQuotes,
-                RemoveTrailingCommas(normalized),
-                RemoveTrailingCommas(unescapedQuotes)
-            };
-
-            foreach (string candidate in candidates.Distinct(StringComparer.Ordinal))
-            {
-                if (string.IsNullOrWhiteSpace(candidate))
-                    continue;
-
-                try
-                {
-                    return JsonNode.Parse(candidate);
-                }
-                catch
-                {
-                }
-            }
-
-            return null;
-        }
-
-        private static string RemoveTrailingCommas(string value)
-        {
-            return string.IsNullOrWhiteSpace(value) ? value : _reTrailingComma.Replace(value, "$1");
+            return PlayerJsDecoder.LoadJsonLoose(value);
         }
 
         private static string Nullish(string value)
         {
-            string text = value?.Trim();
-            if (string.IsNullOrWhiteSpace(text))
-                return null;
-
-            if (text.Equals("null", StringComparison.OrdinalIgnoreCase) ||
-                text.Equals("none", StringComparison.OrdinalIgnoreCase) ||
-                text.Equals("undefined", StringComparison.OrdinalIgnoreCase))
-                return null;
-
-            return text;
+            return PlayerJsDecoder.Nullish(value);
         }
 
         private static bool TryGetArray(JsonObject obj, string key, out JsonArray array)
@@ -1120,13 +693,6 @@ namespace LME.NMoonAnime
             return TimeSpan.FromMinutes(ctime);
         }
 
-        private sealed class PlayerPayload
-        {
-            public string Title { get; set; }
-
-            public object FilePayload { get; set; }
-        }
-
         private sealed class NMoonAnimeMovieEntry
         {
             public string Title { get; set; }

LME.Shared/GlobalUsings.cs

@@ -1,6 +1,3 @@
-global using Shared.Services;
-global using Shared.Services.Hybrid;
-global using Shared.Models.Base;
 global using AppInit = Shared.CoreInit;
 global using LME.Common.Online;
 global using LME.Common.Update;

LME.Shared/LME.Shared.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <OutputType>library</OutputType>
+    <IsPackable>true</IsPackable>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Shared">
+      <HintPath>..\..\Shared.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+</Project>

LME.Shared/Models/PlayerPayload.cs

@@ -0,0 +1,9 @@
+namespace LME.Shared.Models
+{
+    public sealed class PlayerPayload
+    {
+        public string Title { get; set; }
+
+        public object FilePayload { get; set; }
+    }
+}

LME.Shared/PlayerJsDecoder.cs

@@ -0,0 +1,455 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using System.Text.RegularExpressions;
+using LME.Shared.Models;
+
+namespace LME.Shared
+{
+    public static class PlayerJsDecoder
+    {
+        private static readonly Regex _reAtobLiteral = new Regex(@"atob\(\s*(['""])(?<payload>[A-Za-z0-9+/=]+)\1\s*\)", RegexOptions.IgnoreCase | RegexOptions.Compiled);
+        private static readonly Regex _reJsonParseHelper = new Regex(@"JSON\.parse\(\s*(?<fn>[A-Za-z_$][\w$]*)\(\s*(?<quote>['""])(?<payload>.*?)(\k<quote>)\s*\)\s*\)", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
+        private static readonly Regex _reHelperCall = new Regex(@"^\s*(?<fn>[A-Za-z_$][\w$]*)\(\s*(?<quote>['""])(?<payload>.*?)(\k<quote>)\s*\)\s*$", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
+        private static readonly Regex _reTrailingComma = new Regex(@",\s*([}\]])", RegexOptions.Compiled);
+        private static readonly UTF8Encoding _utf8Strict = new UTF8Encoding(false, true);
+        private static readonly Encoding _latin1 = Encoding.GetEncoding("ISO-8859-1");
+
+        public static PlayerPayload ExtractPlayerPayload(string htmlText)
+        {
+            string cleanHtml = WebUtility.HtmlDecode(htmlText ?? string.Empty);
+            if (string.IsNullOrWhiteSpace(cleanHtml))
+                return null;
+
+            var candidates = new List<string> { cleanHtml };
+            string decodedScript = DecodeOuterPlayerScript(cleanHtml);
+            if (!string.IsNullOrWhiteSpace(decodedScript))
+                candidates.Insert(0, decodedScript);
+
+            foreach (string sourceText in candidates)
+            {
+                string objectText = ExtractObjectByBraces(sourceText, "new Playerjs");
+                if (string.IsNullOrWhiteSpace(objectText))
+                    objectText = ExtractObjectByBraces(sourceText, "Playerjs({");
+
+                string searchText = string.IsNullOrWhiteSpace(objectText) ? sourceText : objectText;
+
+                string fileValue = ExtractJsValue(searchText, "file");
+                if (fileValue == null && !string.IsNullOrWhiteSpace(objectText))
+                    fileValue = ExtractJsValue(sourceText, "file");
+                if (fileValue == null)
+                    continue;
+
+                string titleValue = ExtractJsValue(searchText, "title");
+                object parsedFile = ParsePlayerFileValue(fileValue, sourceText);
+
+                return new PlayerPayload
+                {
+                    Title = Nullish(titleValue),
+                    FilePayload = parsedFile
+                };
+            }
+
+            return null;
+        }
+
+        private static object ParsePlayerFileValue(string rawValue, string contextText)
+        {
+            string text = rawValue?.Trim();
+            if (string.IsNullOrWhiteSpace(text))
+                return rawValue;
+
+            if (text.StartsWith("[") || text.StartsWith("{"))
+            {
+                JsonNode loaded = LoadJsonLoose(text);
+                if (loaded != null)
+                    return loaded;
+            }
+
+            var parseMatch = _reJsonParseHelper.Match(text);
+            if (parseMatch.Success)
+            {
+                string decoded = DecodeHelperPayload(parseMatch.Groups["fn"].Value, parseMatch.Groups["payload"].Value, contextText);
+                if (!string.IsNullOrWhiteSpace(decoded))
+                {
+                    JsonNode loaded = LoadJsonLoose(decoded);
+                    if (loaded != null)
+                        return loaded;
+                }
+            }
+
+            var helperMatch = _reHelperCall.Match(text);
+            if (helperMatch.Success)
+            {
+                string decoded = DecodeHelperPayload(helperMatch.Groups["fn"].Value, helperMatch.Groups["payload"].Value, contextText);
+                if (!string.IsNullOrWhiteSpace(decoded))
+                {
+                    JsonNode loaded = LoadJsonLoose(decoded);
+                    if (loaded != null)
+                        return loaded;
+
+                    return decoded;
+                }
+            }
+
+            return rawValue;
+        }
+
+        private static string DecodeHelperPayload(string helperName, string payload, string contextText)
+        {
+            if (string.IsNullOrWhiteSpace(helperName))
+                return null;
+
+            if (helperName.Equals("atob", StringComparison.OrdinalIgnoreCase))
+            {
+                byte[] rawBytes = SafeBase64Decode(payload);
+                return rawBytes == null ? null : DecodeBytes(rawBytes);
+            }
+
+            string helperKey = ExtractHelperKey(contextText, helperName);
+            if (string.IsNullOrWhiteSpace(helperKey))
+                return null;
+
+            byte[] keyBytes = Encoding.UTF8.GetBytes(helperKey);
+            if (keyBytes.Length == 0)
+                return null;
+
+            byte[] payloadBytes = SafeBase64Decode(payload);
+            if (payloadBytes == null)
+                return null;
+
+            var decoded = new byte[payloadBytes.Length];
+            for (int index = 0; index < payloadBytes.Length; index++)
+                decoded[index] = (byte)(payloadBytes[index] ^ keyBytes[index % keyBytes.Length]);
+
+            return DecodeBytes(decoded);
+        }
+
+        private static string ExtractHelperKey(string contextText, string helperName)
+        {
+            if (string.IsNullOrWhiteSpace(contextText) || string.IsNullOrWhiteSpace(helperName))
+                return null;
+
+            string pattern = $@"function\s+{Regex.Escape(helperName)}\s*\([^)]*\)\s*\{{[\s\S]*?var\s+k\s*=\s*(['""])(?<key>.*?)\1";
+            var match = Regex.Match(contextText, pattern, RegexOptions.IgnoreCase);
+            if (!match.Success)
+                return null;
+
+            return Nullish(match.Groups["key"].Value);
+        }
+
+        private static string DecodeOuterPlayerScript(string text)
+        {
+            if (string.IsNullOrWhiteSpace(text))
+                return null;
+
+            var match = _reAtobLiteral.Match(text);
+            if (!match.Success)
+                return null;
+
+            byte[] rawData = SafeBase64Decode(match.Groups["payload"].Value);
+            if (rawData == null || rawData.Length <= 32)
+                return null;
+
+            byte[] key = rawData.Take(32).ToArray();
+            byte[] encryptedData = rawData.Skip(32).ToArray();
+            var decoded = new byte[encryptedData.Length];
+
+            for (int index = 0; index < encryptedData.Length; index++)
+                decoded[index] = (byte)(encryptedData[index] ^ key[index % key.Length]);
+
+            return DecodeBytes(decoded);
+        }
+
+        private static byte[] SafeBase64Decode(string value)
+        {
+            string text = value?.Trim();
+            if (string.IsNullOrWhiteSpace(text))
+                return null;
+
+            int remainder = text.Length % 4;
+            if (remainder != 0)
+                text += new string('=', 4 - remainder);
+
+            try
+            {
+                return Convert.FromBase64String(text);
+            }
+            catch
+            {
+                return null;
+            }
+        }
+
+        private static string DecodeBytes(byte[] data)
+        {
+            if (data == null || data.Length == 0)
+                return null;
+
+            try
+            {
+                return _utf8Strict.GetString(data);
+            }
+            catch
+            {
+                return _latin1.GetString(data);
+            }
+        }
+
+        private static string ExtractObjectByBraces(string text, string anchor)
+        {
+            if (string.IsNullOrWhiteSpace(text) || string.IsNullOrWhiteSpace(anchor))
+                return null;
+
+            int anchorIndex = text.IndexOf(anchor, StringComparison.OrdinalIgnoreCase);
+            if (anchorIndex < 0)
+                return null;
+
+            int braceIndex = text.IndexOf('{', anchorIndex);
+            if (braceIndex < 0)
+                return null;
+
+            int depth = 0;
+            bool escaped = false;
+            char? inString = null;
+
+            for (int index = braceIndex; index < text.Length; index++)
+            {
+                char current = text[index];
+
+                if (inString.HasValue)
+                {
+                    if (escaped)
+                    {
+                        escaped = false;
+                        continue;
+                    }
+
+                    if (current == '\\')
+                    {
+                        escaped = true;
+                        continue;
+                    }
+
+                    if (current == inString.Value)
+                        inString = null;
+
+                    continue;
+                }
+
+                if (current == '"' || current == '\'')
+                {
+                    inString = current;
+                    continue;
+                }
+
+                if (current == '{')
+                {
+                    depth++;
+                    continue;
+                }
+
+                if (current == '}')
+                {
+                    depth--;
+                    if (depth == 0)
+                        return text.Substring(braceIndex + 1, index - braceIndex - 1);
+                }
+            }
+
+            return null;
+        }
+
+        private static string ExtractJsValue(string text, string key)
+        {
+            if (string.IsNullOrWhiteSpace(text) || string.IsNullOrWhiteSpace(key))
+                return null;
+
+            var match = Regex.Match(text, $@"\b{Regex.Escape(key)}\b\s*:\s*", RegexOptions.IgnoreCase);
+            if (!match.Success)
+                return null;
+
+            int index = match.Index + match.Length;
+            while (index < text.Length && char.IsWhiteSpace(text[index]))
+                index++;
+
+            if (index >= text.Length)
+                return null;
+
+            char token = text[index];
+            if (token == '"' || token == '\'')
+            {
+                var (value, _) = ReadJsString(text, index);
+                return value;
+            }
+
+            if (token == '[')
+            {
+                int endIndex = FindMatchingBracket(text, index, '[', ']');
+                return endIndex >= index ? text.Substring(index, endIndex - index + 1) : null;
+            }
+
+            if (token == '{')
+            {
+                int endIndex = FindMatchingBracket(text, index, '{', '}');
+                return endIndex >= index ? text.Substring(index, endIndex - index + 1) : null;
+            }
+
+            int stopIndex = index;
+            while (stopIndex < text.Length && text[stopIndex] != ',' && text[stopIndex] != '}' && text[stopIndex] != '\n' && text[stopIndex] != '\r')
+                stopIndex++;
+
+            return text.Substring(index, stopIndex - index).Trim();
+        }
+
+        private static (string value, int nextIndex) ReadJsString(string text, int startIndex)
+        {
+            if (string.IsNullOrWhiteSpace(text) || startIndex < 0 || startIndex >= text.Length)
+                return (null, -1);
+
+            char quote = text[startIndex];
+            if (quote != '"' && quote != '\'')
+                return (null, -1);
+
+            var buffer = new StringBuilder();
+            bool escaped = false;
+
+            for (int index = startIndex + 1; index < text.Length; index++)
+            {
+                char current = text[index];
+
+                if (escaped)
+                {
+                    buffer.Append(current);
+                    escaped = false;
+                    continue;
+                }
+
+                if (current == '\\')
+                {
+                    escaped = true;
+                    continue;
+                }
+
+                if (current == quote)
+                    return (buffer.ToString(), index + 1);
+
+                buffer.Append(current);
+            }
+
+            return (null, -1);
+        }
+
+        private static int FindMatchingBracket(string text, int startIndex, char openChar, char closeChar)
+        {
+            if (string.IsNullOrWhiteSpace(text) || startIndex < 0 || startIndex >= text.Length || text[startIndex] != openChar)
+                return -1;
+
+            int depth = 0;
+            bool escaped = false;
+            char? inString = null;
+
+            for (int index = startIndex; index < text.Length; index++)
+            {
+                char current = text[index];
+
+                if (inString.HasValue)
+                {
+                    if (escaped)
+                    {
+                        escaped = false;
+                        continue;
+                    }
+
+                    if (current == '\\')
+                    {
+                        escaped = true;
+                        continue;
+                    }
+
+                    if (current == inString.Value)
+                        inString = null;
+
+                    continue;
+                }
+
+                if (current == '"' || current == '\'')
+                {
+                    inString = current;
+                    continue;
+                }
+
+                if (current == openChar)
+                {
+                    depth++;
+                    continue;
+                }
+
+                if (current == closeChar)
+                {
+                    depth--;
+                    if (depth == 0)
+                        return index;
+                }
+            }
+
+            return -1;
+        }
+
+        public static JsonNode LoadJsonLoose(string value)
+        {
+            string text = value?.Trim();
+            if (string.IsNullOrWhiteSpace(text))
+                return null;
+
+            string normalized = WebUtility.HtmlDecode(text).Replace("\\/", "/");
+            string unescapedQuotes = normalized.Replace("\\'", "'").Replace("\\\"", "\"");
+            var candidates = new[]
+            {
+                normalized,
+                unescapedQuotes,
+                RemoveTrailingCommas(normalized),
+                RemoveTrailingCommas(unescapedQuotes)
+            };
+
+            foreach (string candidate in candidates.Distinct(StringComparer.Ordinal))
+            {
+                if (string.IsNullOrWhiteSpace(candidate))
+                    continue;
+
+                try
+                {
+                    return JsonNode.Parse(candidate);
+                }
+                catch
+                {
+                }
+            }
+
+            return null;
+        }
+
+        private static string RemoveTrailingCommas(string value)
+        {
+            return string.IsNullOrWhiteSpace(value) ? value : _reTrailingComma.Replace(value, "$1");
+        }
+
+        public static string Nullish(string value)
+        {
+            string text = value?.Trim();
+            if (string.IsNullOrWhiteSpace(text))
+                return null;
+
+            if (text.Equals("null", StringComparison.OrdinalIgnoreCase) ||
+                text.Equals("none", StringComparison.OrdinalIgnoreCase) ||
+                text.Equals("undefined", StringComparison.OrdinalIgnoreCase))
+                return null;
+
+            return text;
+        }
+    }
+}