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Yes.Application/Admins/Themes/GetThemeFileQueryHandler.cs

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+namespace Yes.Application.Admins.Themes
+{
+
+    public record GetThemeFileQuery(string ThemeName, string FileName) :  IRequest<GetThemeFileQueryResponse>;
+
+    public record GetThemeFileQueryResponse(
+        string Content
+    );
+
+    public class GetThemeFileQueryHandler(IOptionsMonitor<BlogSettings> options, IMapper mapper, IWebHostEnvironment env) : IRequestHandler<GetThemeFileQuery, GetThemeFileQueryResponse>
+    {
+        private readonly BlogSettings _settings = options.CurrentValue;
+        private readonly IMapper _mapper = mapper;
+        private readonly IWebHostEnvironment _env = env;
+
+        public async Task<GetThemeFileQueryResponse> Handle(GetThemeFileQuery request, CancellationToken cancellationToken)
+        {
+            var themeName = request.ThemeName; 
+            var fileName = request.FileName;
+
+            var themes = new List<GetThemeFileQueryResponse>();
+            var filePath = Path.Combine(_env.ContentRootPath, "files", "themes", themeName, fileName);
+            var content = "";
+            if (File.Exists(filePath))
+            {
+                content = File.ReadAllText(filePath);
+            }
+
+            return new GetThemeFileQueryResponse(content);
+        }
+    }
+}

Yes.Application/Admins/Themes/GetThemeFilesQueryHandler.cs

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+namespace Yes.Application.Admins.Themes
+{
+
+    public record GetThemeFilesQuery(string Name) :  IRequest<List<GetThemeFilesQueryResponse>>;
+
+    public record GetThemeFilesQueryResponse(
+        string FileName
+    );
+
+    public class GetThemeFilesQueryHandler(IOptionsMonitor<BlogSettings> options, IMapper mapper, IWebHostEnvironment env) : IRequestHandler<GetThemeFilesQuery, List<GetThemeFilesQueryResponse>>
+    {
+        private readonly BlogSettings _settings = options.CurrentValue;
+        private readonly IMapper _mapper = mapper;
+        private readonly IWebHostEnvironment _env = env;
+
+        public async Task<List<GetThemeFilesQueryResponse>> Handle(GetThemeFilesQuery request, CancellationToken cancellationToken)
+        {
+            var themeName = request.Name;
+            var themes = new List<GetThemeFilesQueryResponse>();
+            var themePath = Path.Combine(_env.ContentRootPath, "files", "themes", themeName);
+            var files = Directory.GetFiles(themePath).Where(x=>x.EndsWith(".liquid") || x.EndsWith(".css") || x.EndsWith(".js"));
+
+
+
+            themes = files.Select(x=>new GetThemeFilesQueryResponse(Path.GetFileName(x))).ToList();
+
+            return themes;
+        }
+    }
+}

Yes.Application/Admins/Themes/UpdateThemeFileCommandHandler.cs

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+namespace Yes.Application.Admins.Themes
+{
+    public record UpdateThemeFileCommand(
+           string ThemeName,
+           string FileName,
+           string Content
+    ) : IRequest<Unit>;
+
+
+    public class UpdateThemeFileCommandHandler(
+        IThemeService  themeService, 
+        IWebHostEnvironment env
+    ) : IRequestHandler<UpdateThemeFileCommand, Unit>
+    {
+        private readonly IThemeService _themeService = themeService;
+        private readonly IWebHostEnvironment _env = env;
+        public async Task<Unit> Handle(UpdateThemeFileCommand request, CancellationToken cancellationToken)
+        {
+            var themeName = request.ThemeName;
+            var fileName = request.FileName;
+            var content = request.Content;
+            _themeService.CheckThemeExists(themeName);
+            var filePath = Path.Combine(_env.ContentRootPath, "files", "themes", themeName, fileName);
+            if (File.Exists(filePath))
+            {
+                File.WriteAllText(filePath, content);
+            }
+            return new Unit();
+        }
+    }
+}