@page "/Account/ResendEmailConfirmation"

@using System.ComponentModel.DataAnnotations
@using System.Text
@using System.Text.Encodings.Web
@using Microsoft.AspNetCore.Identity
@using Microsoft.AspNetCore.WebUtilities
@using CouchLog.Data

@inject UserManager<ApplicationUser> UserManager
@inject IEmailSender<ApplicationUser> EmailSender
@inject NavigationManager NavigationManager
@inject IdentityRedirectManager RedirectManager

<PageTitle>Resend email confirmation</PageTitle>

<h1>Resend email confirmation</h1>
<h2>Enter your email.</h2>
<hr />
<StatusMessage Message="@message" />
<div class="row">
    <div class="col-md-4">
        <EditForm Model="Input" FormName="resend-email-confirmation" OnValidSubmit="OnValidSubmitAsync" method="post">
            <DataAnnotationsValidator />
            <ValidationSummary class="text-danger" role="alert" />
            <div class="form-floating mb-3">
                <InputText @bind-Value="Input.Email" id="Input.Email" class="form-control" aria-required="true" placeholder="name@example.com" />
                <label for="Input.Email" class="form-label">Email</label>
                <ValidationMessage For="() => Input.Email" class="text-danger" />
            </div>
            <button type="submit" class="w-100 btn btn-lg btn-primary">Resend</button>
        </EditForm>
    </div>
</div>

@code {
    private string? message;

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

    private async Task OnValidSubmitAsync()
    {
        var user = await UserManager.FindByEmailAsync(Input.Email!);
        if (user is null)
        {
            message = "Verification email sent. Please check your email.";
            return;
        }

        var userId = await UserManager.GetUserIdAsync(user);
        var code = await UserManager.GenerateEmailConfirmationTokenAsync(user);
        code = WebEncoders.Base64UrlEncode(Encoding.UTF8.GetBytes(code));
        var callbackUrl = NavigationManager.GetUriWithQueryParameters(
            NavigationManager.ToAbsoluteUri("Account/ConfirmEmail").AbsoluteUri,
            new Dictionary<string, object?> { ["userId"] = userId, ["code"] = code });
        await EmailSender.SendConfirmationLinkAsync(user, Input.Email, HtmlEncoder.Default.Encode(callbackUrl));

        message = "Verification email sent. Please check your email.";
    }

    private sealed class InputModel
    {
        [Required]
        [EmailAddress]
        public string Email { get; set; } = "";
    }
}
