Aaru.Server/Aaru.Server.New/Components/Account/Pages/Manage/Index.razor

@page "/Account/Manage"

@using System.ComponentModel.DataAnnotations
@using Microsoft.AspNetCore.Identity
@using Aaru.Server.New.Data

@inject UserManager<ApplicationUser>   UserManager
@inject SignInManager<ApplicationUser> SignInManager
@inject IdentityUserAccessor           UserAccessor
@inject IdentityRedirectManager        RedirectManager

<PageTitle>Profile</PageTitle>

<h3>Profile</h3>
<StatusMessage/>

<div class="row">
    <div class="col-md-6">
        <EditForm FormName="profile" method="post" Model="Input" OnValidSubmit="OnValidSubmitAsync">
            <DataAnnotationsValidator/>
            <ValidationSummary class="text-danger" role="alert"/>
            <div class="form-floating mb-3">
                <input class="form-control" disabled placeholder="Please choose your username." type="text" value="@username"/>
                <label class="form-label" for="username">Username</label>
            </div>
            <div class="form-floating mb-3">
                <InputText @bind-Value="Input.PhoneNumber" class="form-control" placeholder="Please enter your phone number."/>
                <label class="form-label" for="phone-number">Phone number</label>
                <ValidationMessage class="text-danger" For="() => Input.PhoneNumber"/>
            </div>
            <button class="btn btn-lg btn-primary w-100" type="submit">Save</button>
        </EditForm>
    </div>
</div>

@code {
    private ApplicationUser user = default!;
    private string?         username;
    private string?         phoneNumber;

    [CascadingParameter]
    private HttpContext HttpContext { get; set; } = default!;

    [SupplyParameterFromForm]
    private InputModel Input { get; set; } = new();

    protected override async Task OnInitializedAsync()
    {
        user        = await UserAccessor.GetRequiredUserAsync(HttpContext);
        username    = await UserManager.GetUserNameAsync(user);
        phoneNumber = await UserManager.GetPhoneNumberAsync(user);

        Input.PhoneNumber ??= phoneNumber;
    }

    private async Task OnValidSubmitAsync()
    {
        if(Input.PhoneNumber != phoneNumber)
        {
            var setPhoneResult = await UserManager.SetPhoneNumberAsync(user, Input.PhoneNumber);

            if(!setPhoneResult.Succeeded)
            {
                RedirectManager.RedirectToCurrentPageWithStatus("Error: Failed to set phone number.", HttpContext);
            }
        }

        await SignInManager.RefreshSignInAsync(user);
        RedirectManager.RedirectToCurrentPageWithStatus("Your profile has been updated", HttpContext);
    }

    private sealed class InputModel
    {
        [Phone]
        [Display(Name = "Phone number")]
        public string? PhoneNumber { get; set; }
    }

}