Htmx/Htmx.ApiDemo/Templates/Register.htmx.routing.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Builder;
using Htmx.ApiDemo.Templates;
using Microsoft.AspNetCore.Antiforgery;
using Htmx.ApiDemo.Data;
using Microsoft.AspNetCore.Mvc;

namespace Htmx.ApiDemo;

public static partial class RouteMap
{
    private static void GetRegister(WebApplication app)
    => app.MapGet("/register", (IHttpContextAccessor contextAccessor, IAntiforgery antiforgery) =>
        {
            var context = contextAccessor.HttpContext
                ?? throw new InvalidOperationException("HttpContext is not available.");

            if (context.User.Identity?.IsAuthenticated == true)
            {
                context.Response.Redirect("/");
                return;
            }

            var afTokens = antiforgery.GetAndStoreTokens(context);
            var registerComponent = new Register(afToken: afTokens.RequestToken);
            registerComponent.HtmxAwareWriteToBody(
                context: context,
                title: "Register",
                appName: "HtmxApp",
                pageTitle: "Create account"
            );
        });

    private static void PostRegister(WebApplication app)
    => app.MapPost("/register", async ValueTask
    (
        [FromForm] string email,
        [FromForm] string password,
        [FromForm] string confirmPassword,
        [FromForm] string? displayName,
        [FromServices] IHttpContextAccessor httpContextAccessor,
        [FromServices] IAntiforgery antiforgery,
        [FromServices] AppAuthService authService
    ) =>
    {
        var context = httpContextAccessor.HttpContext
            ?? throw new InvalidOperationException("HttpContext is not available.");

        var afToken = antiforgery.GetAndStoreTokens(context).RequestToken;

        if (password != confirmPassword)
        {
            var errorComponent = new Register("Passwords do not match.", afToken: afToken);
            errorComponent.HtmxAwareWriteToBody(
                context: context,
                title: "Register",
                appName: "HtmxApp",
                pageTitle: "Create account"
            );
        }

        var (success, error) = await authService.RegisterAsync(email, password, displayName);

        if (success)
        {
            context.Response.Redirect("/");
            return;
        }

        var registerComponent = new Register(error, afToken: afToken);
    });
}