@page "/settings/account"
@using Iceshrimp.Frontend.Core.Services
@using Iceshrimp.Frontend.Localization
@using Microsoft.AspNetCore.Authorization
@using Microsoft.Extensions.Localization
@using Microsoft.AspNetCore.Components.Sections
@using Iceshrimp.Assets.PhosphorIcons
@using Iceshrimp.Frontend.Core.Miscellaneous
@using Iceshrimp.Shared.Schemas.Web
@using Iceshrimp.Frontend.Components

@attribute [Authorize]
@layout SettingsLayout
@inject ApiService                     Api;
@inject ILogger<Profile>               Logger;
@inject IStringLocalizer<Localization> Loc;
@inject IJSRuntime                     Js;

<SectionContent SectionName="top-bar">
    <Icon Name="Icons.UserCircleGear"></Icon>
    @Loc["Account"]
</SectionContent>

@if (State is State.Loaded)
{
    <div class="body">
        <div class="section">
            <h1>@Loc["Settings"]</h1>
            <EditForm OnSubmit="Submit" Model="SettingsForm">
                <label>
                    @Loc["Default note visibility"]
                    <InputSelect @bind-Value="SettingsForm.DefaultNoteVisibility">
                        <option value="@NoteVisibility.Public">@Loc["Public"]</option>
                        <option value="@NoteVisibility.Home">@Loc["Home"]</option>
                        <option value="@NoteVisibility.Followers">@Loc["Followers"]</option>
                        <option value="@NoteVisibility.Specified">@Loc["Direct"]</option>
                    </InputSelect>
                </label>
                <label>
                    @Loc["Default renote visibility"]
                    <InputSelect @bind-Value="SettingsForm.DefaultRenoteVisibility">
                        <option value="@NoteVisibility.Public">@Loc["Public"]</option>
                        <option value="@NoteVisibility.Home">@Loc["Home"]</option>
                        <option value="@NoteVisibility.Followers">@Loc["Followers"]</option>
                    </InputSelect>
                </label>
                <label>
                    @Loc["Private Mode"]
                    <InputCheckbox @bind-Value="SettingsForm.PrivateMode"/>
                </label>
                <label>
                    @Loc["Filter replies to inaccessible notes"]
                    <InputCheckbox @bind-Value="SettingsForm.FilterInaccessible"/>

                </label>
                <label>
                    @Loc["Auto accept follow requests from users you are following"]
                    <InputCheckbox @bind-Value="SettingsForm.AutoAcceptFollowed"/>
                </label>
                <label>
                    @Loc["Mark all posts as sensitive"]
                    <InputCheckbox @bind-Value="SettingsForm.AlwaysMarkSensitive"/>
                </label>
                <StateButton ExtraClasses="button" @ref="@SaveButton" OnClick="Submit">
                    <Initial>@Loc["Save changes"]</Initial>
                    <Success>@Loc["Saved"]</Success>
                    <Loading>@Loc["Loading"]<Icon Name="Icons.Spinner"/>
                    </Loading>
                    <Failed>@Loc["Error"]</Failed>
                </StateButton>
            </EditForm>
        </div>

        <h1>@Loc["Two-Factor Authentication"]</h1>
        @if (SettingsForm.TwoFactorEnrolled == false)
        {
            <button class="button" @onclick="Enroll2FA">@Loc["Enable 2FA"]</button>
        }
        @if (SettingsForm.TwoFactorEnrolled)
        {
            <button class="button" @onclick="Disable2FAMenu">@Loc["Disable 2FA"]</button>
        }

        <dialog class="dialog" @ref="EnrollDialog">
            @if (TwoFactorResponse is not null)
            {
                <div class="dialog-content">
                    <div class="header">
                        <h2 class="title">@Loc["Two-Factor Authentication"]</h2>
                        <button class="button close" @onclick="() => CloseDialog(EnrollDialog)">
                            <Icon Name="Icons.X"></Icon>
                        </button>
                    </div>
                    <img class="qr" src="@TwoFactorResponse.QrPng"/>
                    <div class="container">
                        <div class="name">@Loc["Two-Factor secret"]</div>
                        <div class="item">
                            <pre><code>@TwoFactorResponse.Secret</code></pre>
                        </div>
                        <div class="name">@Loc["Two-Factor URL"]</div>
                        <div class="item">
                            <pre><code>@TwoFactorResponse.Url</code></pre>
                        </div>
                    </div>
                    <input class="otp-input" @bind="OtpEnable" autocomplete="one-time-code"/>
                    <StateButton ExtraClasses="button" @ref="TwoFactorButton" OnClick="Confirm2FA">
                        <Loading>@Loc["Processing"]</Loading>
                        <Failed>@Loc["Failed to enroll"]</Failed>
                        <Success>@Loc["Two-Factor Authentication enabled!"]</Success>
                        <Initial>@Loc["Confirm 2FA Code"]</Initial>
                    </StateButton>
                </div>
            }
            <div class="backdrop"></div>
        </dialog>

        <dialog class="dialog" @ref="DisableDialog">
            <div class="dialog-content">
                <div class="header">
                    <h2 class="title">@Loc["Two-Factor Authentication"]</h2>
                    <button class="button close" @onclick="() => CloseDialog(DisableDialog)">
                        <Icon Name="Icons.X"></Icon>
                    </button>
                </div>
                <input class="otp-input" @bind="OtpDisable" autocomplete="one-time-code"/>
                <StateButton ExtraClasses="button" @ref="DisableButton" OnClick="Disable2FA">
                    <Loading>@Loc["Processing"]</Loading>
                    <Failed>@Loc["Failed to disable Two-Factor Authentication"]</Failed>
                    <Success>@Loc["Two-Factor Authentication disabled!"]</Success>
                    <Initial>
                        <Icon Name="Icons.Warning"></Icon>@Loc["Disable Two-Factor Authentication"]</Initial>
                </StateButton>
            </div>
            <div class="backdrop"></div>
        </dialog>
    </div>
}

@code {
    private          UserSettingsResponse           SettingsForm      { get; set; } = null!;
    private          State                          State             { get; set; } = State.Loading;
    private          StateButton                    SaveButton        { get; set; } = null!;
    private          StateButton                    DisableButton     { get; set; } = null!;
    private          StateButton                    TwoFactorButton   { get; set; } = null!;
    private          ElementReference               EnrollDialog      { get; set; }
    private          ElementReference               DisableDialog     { get; set; }
    private          TwoFactorEnrollmentResponse?   TwoFactorResponse { get; set; }
    private          string?                        OtpEnable         { get; set; }
    private          string?                        OtpDisable        { get; set; }
    private readonly Lazy<Task<IJSObjectReference>> _moduleTask;

    public Account()
    {
        _moduleTask = new Lazy<Task<IJSObjectReference>>(() =>
                                                             Js.InvokeAsync<IJSObjectReference>(
                                                                                                "import",
                                                                                                "./Pages/Settings/Account.razor.js")
                                                               .AsTask());
    }

    protected override async Task OnInitializedAsync()
    {
        SettingsForm = await Api.Settings.GetSettingsAsync();
        State        = State.Loaded;
    }

    private async Task Submit()
    {
        try
        {
            var res = await Api.Settings.UpdateSettingsAsync(SettingsForm);
            SaveButton.State = StateButton.StateEnum.Loading;
            StateHasChanged();
            SaveButton.State = res ? StateButton.StateEnum.Success : StateButton.StateEnum.Failed;
        }
        catch (ApiException)
        {
            SaveButton.State = StateButton.StateEnum.Failed;
        }
    }

    private async Task Enroll2FA()
    {
        var module = await _moduleTask.Value;
        TwoFactorResponse = await Api.Settings.EnrollTwoFactorAsync();
        await module.InvokeVoidAsync("openDialog", EnrollDialog);
    }

    private async Task Disable2FAMenu()
    {
        var module = await _moduleTask.Value;
        await module.InvokeVoidAsync("openDialog", DisableDialog);
    }

    private async Task Disable2FA()
    {
        var module = await _moduleTask.Value;
        if (OtpDisable is null)
        {
            return;
        }

        try
        {
            DisableButton.State = StateButton.StateEnum.Loading;
            StateHasChanged();
            await Api.Settings.DisableTwoFactorAsync(new TwoFactorRequest { Code = OtpDisable });
            DisableButton.State = StateButton.StateEnum.Success;
            StateHasChanged();
            await Task.Delay(1000);
            SettingsForm = await Api.Settings.GetSettingsAsync();
            await module.InvokeVoidAsync("closeDialog", DisableDialog);
        }

        catch (ApiException e)
        {
            Logger.LogError(e, "2FA enrollment failed");
            DisableButton.State = StateButton.StateEnum.Failed;
        }
    }

    private async Task Confirm2FA()
    {
        var module = await _moduleTask.Value;
        if (OtpEnable is null)
        {
            return;
        }

        try
        {
            TwoFactorButton.State = StateButton.StateEnum.Loading;
            StateHasChanged();
            await Api.Settings.ConfirmTwoFactorAsync(new TwoFactorRequest { Code = OtpEnable });
            TwoFactorButton.State = StateButton.StateEnum.Success;
            StateHasChanged();
            await Task.Delay(1000);
            SettingsForm = await Api.Settings.GetSettingsAsync();
            await module.InvokeVoidAsync("closeDialog", EnrollDialog);
        }

        catch (ApiException e)
        {
            Logger.LogError(e, "2FA enrollment failed");
            TwoFactorButton.State = StateButton.StateEnum.Failed;
        }
    }

    private async Task CloseDialog(ElementReference dialog)
    {
        var module = await _moduleTask.Value;
        await module.InvokeVoidAsync("closeDialog", dialog);
    }
}