using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace SoroushAsadi.Pages;

/// <summary>POST /locale — sets the locale cookie and redirects back.</summary>
[IgnoreAntiforgeryToken]
public class LocalePageModel : PageModel
{
    public IActionResult OnPost(string locale, string returnUrl = "/")
    {
        if (locale is not "fa" and not "en") locale = "fa";

        Response.Cookies.Append("locale", locale, new CookieOptions
        {
            Expires  = DateTimeOffset.UtcNow.AddYears(1),
            HttpOnly = false,
            SameSite = SameSiteMode.Lax,
            Path     = "/"
        });

        if (!Url.IsLocalUrl(returnUrl)) returnUrl = "/";
        return LocalRedirect(returnUrl);
    }
}