filename templates added

VDownload.Services/VDownload.Services.Utility/VDownload.Services.Utility.Filename/FilenameService.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using VDownload.Models;
+using VDownload.Services.Data.Configuration;
+using VDownload.Services.Data.Configuration.Models;
+
+namespace VDownload.Services.Utility.Filename
+{
+    public interface IFilenameService
+    {
+        string CreateFilename(string template, Video video);
+        string SanitizeFilename(string filename);
+    }
+
+
+
+    public class FilenameService : IFilenameService
+    {
+        #region SERVICES
+
+        protected readonly IConfigurationService _configurationService;
+
+        #endregion
+
+
+
+        #region CONSTRUCTORS
+
+        public FilenameService(IConfigurationService configurationService)
+        {
+            _configurationService = configurationService;
+        }
+
+        #endregion
+
+
+
+        #region PUBLIC METHODS
+
+        public string CreateFilename(string template, Video video)
+        {
+            string filename = template;
+            foreach (FilenameTemplate templateElement in _configurationService.Common.FilenameTemplates)
+            {
+                switch (templateElement.Name)
+                {
+                    case "id": ReplaceInPlace(ref filename, templateElement.Wildcard, video.Id); break;
+                    case "title": ReplaceInPlace(ref filename, templateElement.Wildcard, video.Title); break;
+                    case "author": ReplaceInPlace(ref filename, templateElement.Wildcard, video.Author); break;
+                    case "views": ReplaceInPlace(ref filename, templateElement.Wildcard, video.Views.ToString()); break;
+                    case "source": ReplaceInPlace(ref filename, templateElement.Wildcard, video.Source.ToString()); break;
+                    case "date":
+                    {
+                        Regex regex = new Regex(templateElement.Wildcard);
+                        foreach (Match match in regex.Matches(filename))
+                        {
+                            ReplaceInPlace(ref filename, match.Value, video.PublishDate.ToString(match.Groups[1].Value));
+                        }
+                        break;
+                    }
+                    case "duration":
+                    {
+                        Regex regex = new Regex(templateElement.Wildcard);
+                        foreach (Match match in regex.Matches(filename))
+                        {
+                            ReplaceInPlace(ref filename, match.Value, video.Duration.ToString(match.Groups[1].Value));
+                        }
+                        break;
+                    }
+                    default: throw new Exception("Invalid template");
+                }
+            }
+            filename = SanitizeFilename(filename);
+            return filename;
+        }
+
+        public string SanitizeFilename(string filename)
+        {
+            char[] invalidChars = System.IO.Path.GetInvalidFileNameChars();
+            foreach (char c in invalidChars)
+            {
+                filename = filename.Replace(c, '_');
+            }
+            return filename;
+        }
+
+        #endregion
+
+
+
+        #region PRIVATE METHODS
+
+        protected void ReplaceInPlace(ref string filename, string oldValue, string newValue) => filename = filename.Replace(oldValue, newValue);
+
+        #endregion
+    }
+}

VDownload.Services/VDownload.Services.Utility/VDownload.Services.Utility.Filename/VDownload.Services.Utility.Filename.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\VDownload.Models\VDownload.Models.csproj" />
+    <ProjectReference Include="..\..\VDownload.Services.Data\VDownload.Services.Data.Configuration\VDownload.Services.Data.Configuration.csproj" />
+  </ItemGroup>
+
+</Project>