bitforum-backend/Admin/Pages/Config/Company.cshtml.cs

using GetBank = Application.Features.Admin.ReferenceData.GetBank;
using MediatR;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace Admin.Pages.Config
{
    public class CompanyModel(IMediator mediator) : PageModel
    {
        [BindProperty]
        public InputModel Input { get; set; } = new();

        public IReadOnlyList<GetBank.Response> BankCodes { get; set; } = [];

        private async Task BindBankCodesAsync(CancellationToken ct)
        {
            BankCodes = await mediator.Send(new GetBank.Query(), ct);
        }

        public async Task OnGetAsync(CancellationToken ct)
        {
            await BindBankCodesAsync(ct);

            var config = await mediator.Send(new GetConfig.Query(), ct);
            if (config is not null)
            {
                Input = InputModel.From(config);
            }
        }

        public async Task<IActionResult> OnPostAsync(CancellationToken ct)
        {
            await BindBankCodesAsync(ct);

            if (!ModelState.IsValid)
            {
                return Page();
            }

            await mediator.Send(Input.ToCommand(), ct);

            return RedirectToPage();
        }

        public sealed class InputModel
        {
            public UpdateConfig.Request.CompanyConfigDto Company { get; set; } = new();

            public static InputModel From(GetConfig.Response config)
            {
                var req = UpdateConfig.Request.From(config);

                return new()
                {
                    Company = req.Company
                };
            }

            public UpdateConfig.Command ToCommand()
            {
                return new(
                    Company: Company
                );
            }
        }
    }
}