refactor add culture midleware

EnvelopeGenerator.Web/Middleware/CultureMiddleware.cs

@@ -0,0 +1,46 @@
+using EnvelopeGenerator.Web.Models;
+using Microsoft.AspNetCore.Localization;
+using Microsoft.Extensions.Options;
+using System.Globalization;
+
+namespace EnvelopeGenerator.Web.Middleware;
+
+public class CultureMiddleware
+{
+    private readonly RequestDelegate _next;
+    private readonly Cultures _cultures;
+
+    public CultureMiddleware(RequestDelegate next, IOptions<Cultures> culturesOpt)
+    {
+        _next = next;
+        _cultures = culturesOpt.Value;
+    }
+
+    public async Task InvokeAsync(HttpContext context)
+    {
+        var cookieName = CookieRequestCultureProvider.DefaultCookieName;
+        var cookieValue = context.Request.Cookies[cookieName];
+
+        if (string.IsNullOrEmpty(cookieValue))
+        {
+            var culture = new RequestCulture(_cultures.Default.Language);
+
+            var cookieOptions = new CookieOptions
+            {
+                Secure = false,
+                SameSite = SameSiteMode.Strict,
+                HttpOnly = true
+            };
+
+            context.Response.Cookies.Append(
+                cookieName,
+                CookieRequestCultureProvider.MakeCookieValue(culture),
+                cookieOptions);
+
+            CultureInfo.CurrentCulture = new CultureInfo(_cultures.Default.Language);
+            CultureInfo.CurrentUICulture = new CultureInfo(_cultures.Default.Language);
+        }
+
+        await _next(context);
+    }
+}