FrontOffice/src/FrontOffice.Main/Program.cs

using FluentValidation;
using FrontOffice.Main.Utilities;
using System.Net;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();
builder.Services.AddServerSideBlazor();

#region AddCommonServices

builder.Services.AddCommonServices();

#endregion
#region AddGrpcServices

builder.Services.AddGrpcServices(builder.Configuration);

#endregion
#region FluentValidation

ValidatorOptions.Global.LanguageManager = new CustomFluentValidationLanguageManager();

#endregion
var appSettings = builder.Configuration.Get<AppSettings>();
if (!string.IsNullOrWhiteSpace(appSettings?.DownloadUrl))
{
    UrlUtility.DownloadUrl = appSettings.DownloadUrl;
}
else
{
    UrlUtility.DownloadUrl = string.Empty; // fallback to empty
}

builder.Services.Configure<EncryptionSettings>(builder.Configuration.GetSection("EncryptionSettings"));
builder.Services.AddSingleton<MobileNumberEncryptor>();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();

app.UseStaticFiles();

app.UseRouting();

app.MapBlazorHub();
app.MapFallbackToPage("/_Host");

app.MapGet("/contract/sample", (FrontOffice.Main.Utilities.Pdf.IHtmlToPdfService pdfService) =>
{
    var html = @"<h2 style='text-align:center'>قرارداد نمونه همکاری</h2><p>این یک متن نمونه برای قرارداد است که فقط جهت تست دانلود PDF قرار داده شده است.</p><ul><li>بند ۱: استفاده صرفا مجاز.</li><li>بند ۲: رعایت قوانین لازم است.</li><li>بند ۳: مسئولیت اطلاعات با کاربر است.</li></ul><p class='small'>تاریخ تولید: " + DateTime.Now.ToString("yyyy/MM/dd HH:mm") + "</p>";
    var bytes = pdfService.GeneratePdf(html, "sample-contract");
    return Results.File(bytes, "application/pdf", "sample-contract.pdf");
});

app.MapGet("/contract/generate", (string html, string? fileName, FrontOffice.Main.Utilities.Pdf.IHtmlToPdfService pdfService) =>
{
    var decoded = WebUtility.UrlDecode(html);
    var safeName = string.IsNullOrWhiteSpace(fileName) ? "contract" : fileName.Trim();
    var bytes = pdfService.GeneratePdf(decoded, safeName);
    return Results.File(bytes, "application/pdf", safeName + ".pdf");
});

app.Run();


public class AppSettings
{
    public required string DownloadUrl { get; set; }
}
public class EncryptionSettings
{
    public required string Key { get; set; }
    public required string IV { get; set; }
}