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

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

namespace Htmx.ApiDemo;

public static partial class RouteMap
{
    private static void GetLogin(WebApplication app)
    => app.MapGet("/login", (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 afToken = antiforgery.GetAndStoreTokens(context).RequestToken;
            var loginComponent = new Login(afToken: afToken);
            loginComponent.HtmxAwareWriteToBody(
                context: context,
                title: "Login",
                appName: "HtmxApp",
                pageTitle: "Welcome back"
            );
        });

    private static void PostLogin(WebApplication app)
    => app.MapPost("/login", async ValueTask
    (
        [FromForm] string email,
        [FromForm] string password,
        [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;

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

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

        var loginComponent = new Login(error, afToken: afToken);
        loginComponent.HtmxAwareWriteToBody(
            context: context,
            title: "Login",
            appName: "HtmxApp",
            pageTitle: "Welcome back"
        );
    });
}