@page "/Settings/Integrations/HQ"
@using LANCommander.Server.Settings
@using LANCommander.HQ.SDK
@using Microsoft.Extensions.Options
@implements IDisposable
@inject IOptions<Settings> Settings
@inject SettingsProvider<Settings> SettingsProvider
@inject HQClient HqClient
@inject NavigationManager NavigationManager
@inject IMessageService MessageService
@inject IJSRuntime JS
@inject ILogger<HQ> Logger
@attribute [Authorize(Roles = RoleService.AdministratorRoleName)]

<PageHeader Title="LANCommander HQ">
    <PageHeaderExtra>
        <a class="ant-btn ant-btn-text ant-btn-icon-only" href="https://lancommander.app/HQ">
            <Icon Type="question" Theme="IconThemeType.Outline"/>
        </a>
        <Button OnClick="Save" Type="@ButtonType.Primary">Save</Button>
    </PageHeaderExtra>
</PageHeader>

<PageContent>
    @if (_connected)
    {
        @if (_isPremium)
        {
            <Result Status="ResultStatus.Success" Title="Premium Account" SubTitle="Thank you for supporting LANCommander!">
                <Extra>
                    <a href="https://hq.lancommander.app/Account" class="ant-btn ant-btn-primary">Account</a>
                    <Button Danger OnClick="Disconnect">Unlink</Button>
                </Extra>
            </Result>
        }
        else
        {
            <Result Status="ResultStatus.Success" Title="Basic Account">
                <ChildContent>
                    <Text>Your server is linked to a basic account. Upgrade your account to access the following features:</Text>
                    <ul>
                        <li>Access premium metadata providers</li>
                        <li>Curated/enhanced metadata</li>
                        <li>Support future LANCommander development!</li>
                    </ul>
                </ChildContent>
                <Extra>
                    <a href="https://hq.lancommander.app/Account" class="ant-btn ant-btn-primary">Upgrade</a>
                    <Button Danger OnClick="Disconnect">Unlink</Button>
                </Extra>
            </Result>
        }
    }
    else
    {
        <Flex Direction="FlexDirection.Vertical" Gap="FlexGap.Middle">
            <Text>Connect your server to LANCommander HQ for access to expanded metadata providers, faster lookups, and premium features. All through one account.</Text>
        
            <Alert Type="AlertType.Info" Message="Not Connected" ShowIcon="true" />
            
            <Flex Gap="FlexGap.Middle" Justify="FlexJustify.Center">
                <Card Title="Basic" Class="hq-feature-card hq-feature-card-basic">
                    <Flex Direction="FlexDirection.Vertical" Gap="FlexGap.Small">
                        <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                            <Icon Type="check" Theme="IconThemeType.Outline"/>
                            <Text>Access more metadata providers</Text>
                        </Flex>
                        <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                            <Icon Type="check" Theme="IconThemeType.Outline"/>
                            <Text>Faster metadata lookups</Text>
                        </Flex>
                        <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                            <Icon Type="check" Theme="IconThemeType.Outline"/>
                            <Text>One-time authentication</Text>
                        </Flex>
                        <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                            <Icon Type="check" Theme="IconThemeType.Outline"/>
                            <Text>No additional server setup</Text>
                        </Flex>
                    </Flex>
                </Card>
                
                <Card Title="Premium" Class="hq-feature-card hq-feature-card-premium">
                    <Extra>
                        $5/mo
                    </Extra>
                    <ChildContent>
                        <Flex Direction="FlexDirection.Vertical" Gap="FlexGap.Small">
                            <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                                <Icon Type="check" Theme="IconThemeType.Outline"/>
                                <Text>Everything in Basic</Text>
                            </Flex>
                            <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                                <Icon Type="check" Theme="IconThemeType.Outline"/>
                                <Text>Premium metadata providers</Text>
                            </Flex>
                            <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                                <Icon Type="check" Theme="IconThemeType.Outline"/>
                                <Text>Curated & enhanced metadata</Text>
                            </Flex>
                            <Flex Gap="FlexGap.Small" Align="FlexAlign.Center">
                                <Icon Type="check" Theme="IconThemeType.Outline"/>
                                <Text>Supports LANCommander development</Text>
                            </Flex>
                        </Flex>
                    </ChildContent>
                </Card>
            </Flex>

            <Flex Justify="FlexJustify.Center">
                <Button Block Type="ButtonType.Primary" OnClick="Connect" Loading="_awaitingAuth" Style="max-width: 33%">Connect to HQ</Button>
            </Flex>
        </Flex>
    }

    <Divider Text="Advanced" />

    <Form Model="Settings.Value" Layout="@FormLayout.Vertical">
        <FormItem Label="Base URL">
            <Input @bind-Value="context.Server.HQ.BaseUrl" />
        </FormItem>
    </Form>
</PageContent>

@code {
    bool _connected;
    bool _isPremium;
    bool _awaitingAuth;

    Timer? _pollTimer;

    protected override async Task OnInitializedAsync()
    {
        await CheckStatus();
    }

    async Task CheckStatus()
    {
        _connected = false;
        _isPremium = false;

        var hqSettings = SettingsProvider.CurrentValue.Server.HQ;

        if (!hqSettings.IsAuthenticated)
            return;

        try
        {
            var client = new HQClient(new HQClientOptions
            {
                BaseAddress = new Uri(hqSettings.BaseUrl),
                Token = hqSettings.AccessToken,
            });

            var profile = await client.Auth.GetCurrentUserAsync();

            if (profile is not null)
            {
                _connected = true;
                _isPremium = profile.IsPremium;
            }
        }
        catch (Exception ex)
        {
            Logger.LogError(ex, "Failed to verify connection to LANCommander HQ.");
        }
    }

    async Task Connect()
    {
        var baseUrl = Settings.Value.Server.HQ.BaseUrl.TrimEnd('/');
        var callbackUrl = NavigationManager.BaseUri.TrimEnd('/') + "/api/hq/callback";
        var tokenRelayUrl = $"{baseUrl}/Auth/TokenRelay?returnUrl={Uri.EscapeDataString(callbackUrl)}";
        var loginUrl = $"{baseUrl}/Auth/Login?returnUrl={Uri.EscapeDataString(tokenRelayUrl)}";

        await JS.InvokeVoidAsync("open", loginUrl, "hq_auth", "width=600,height=700,menubar=no,toolbar=no");

        _awaitingAuth = true;

        _pollTimer = new Timer(async _ =>
        {
            if (SettingsProvider.CurrentValue.Server.HQ.IsAuthenticated)
            {
                await InvokeAsync(async () =>
                {
                    _awaitingAuth = false;
                    StopPolling();
                    await CheckStatus();

                    if (_connected)
                        MessageService.Success("Successfully connected to LANCommander HQ!");
                    else
                        MessageService.Error("Connected to LANCommander HQ, but your account could not be verified. Check the server logs for details.");

                    StateHasChanged();
                });
            }
        }, null, TimeSpan.FromSeconds(2), TimeSpan.FromSeconds(2));
    }

    async Task Disconnect()
    {
        SettingsProvider.Update(s =>
        {
            s.Server.HQ.AccessToken = string.Empty;
            s.Server.HQ.TokenExpiresAt = null;
        });

        _connected = false;
        _isPremium = false;

        MessageService.Success("Disconnected from LANCommander HQ.");
    }

    void Save()
    {
        try
        {
            SettingsProvider.Update(s =>
            {
                s.Server.HQ.BaseUrl = Settings.Value.Server.HQ.BaseUrl;
            });

            MessageService.Success("Settings saved!");
        }
        catch (Exception ex)
        {
            MessageService.Error("An unknown error occurred.");
            Logger.LogError(ex, "An unknown error occurred.");
        }
    }

    void StopPolling()
    {
        _pollTimer?.Dispose();
        _pollTimer = null;
    }

    public void Dispose()
    {
        StopPolling();
    }
}