using System.Globalization;
using System.Numerics;
using Content.Client.UserInterface.Controls;
using Content.Shared._DV.Communications;
using Content.Shared._DV.KeycardAuthenticationDevice;
using Content.Shared._DV.Screens;
using Content.Shared.Humanoid;
using Content.Shared.Station;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.XAML;
using Robust.Shared.Timing;
using Robust.Shared.Utility;

namespace Content.Client._DV.Communications;

[GenerateTypedNameReferences]
public sealed partial class DVCommunicationsConsoleMenu : FancyWindow
{
    [Dependency] private readonly IGameTiming _timing = default!;
    [Dependency] private readonly IEntityManager _entity = default!;

    private readonly SharedStationSystem _station;

    private readonly BoxContainer[] _screens;
    private readonly ButtonGroup _group;

    public event Action<BoundUserInterfaceMessage>? OnMessage;
    private Entity<DVCommunicationsConsoleComponent>? _console;
    private Entity<DVStationKeycardAuthenticationDeviceComponent>? _stationKeycardAuthenticationDevice;
    private EntityUid? _user;

    private readonly Popup _alertLevelsPopup;
    private readonly BoxContainer _alertLevels = new()
    {
        Orientation = BoxContainer.LayoutOrientation.Vertical,
    };

    private string _lastConfiguredLine1 = string.Empty;
    private string _lastConfiguredLine2 = string.Empty;

    public DVCommunicationsConsoleMenu()
    {
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);

        _station = _entity.System<SharedStationSystem>();

        _group = new();
        _screens = new[]
        {
            HomeScreen, AnnouncementScreen, ScreenScreen, ShuttlesScreen, AlertLevelScreen,
            KeycardAuthenticationDeviceScreen,
        };

        HomeButton.OnPressed += _ => SetScreen(HomeScreen);
        AnnouncementTab.OnPressed += _ => SetScreen(AnnouncementScreen);
        ScreenTab.OnPressed += _ => SetScreen(ScreenScreen);
        ShuttlesTab.OnPressed += _ => SetScreen(ShuttlesScreen);
        AlertLevelTab.OnPressed += _ => SetScreen(AlertLevelScreen);
        KeycardAuthenticationDeviceTab.OnPressed += _ => SetScreen(KeycardAuthenticationDeviceScreen);

        foreach (var value in Enum.GetValues<DVScreenContent>())
        {
            ScreenContentsButton.AddItem(Loc.GetString($"comms-console-menu-screen-content.{value}"), (int)value);
        }

        AnnounceButton.OnPressed += OnAnnouncePressed;
        ScreenUpdateTextButton.OnPressed += OnUpdateScreenText;
        ScreenContentsButton.OnItemSelected += OnScreenContentsSelected;
        ScreenAlertBorder.OnToggled += OnScreenAlertBorderToggled;

        ShuttleEmergencyButton.OnPressed += OnEmergencyPressed;
        ShuttleExfiltrationButton.OnPressed += OnExfiltrationPressed;
        AlertLevelsDropdown.OnPressed += OnAlertLevelsDropdownPressed;

        CallZeta.OnPressed += OnCallZetaPressed;
        RequestCodes.OnPressed += OnRequestCodesPressed;

        _alertLevelsPopup = new()
        {
            Children = { _alertLevels },
        };
        _alertLevelsPopup.OnPopupHide += () => _alertLevelsPopup.Orphan();

        AnnounceInput.Placeholder = new Rope.Leaf(Loc.GetString("comms-console-menu-announcement-placeholder"));
    }

    private void OnAlertLevelsDropdownPressed(BaseButton.ButtonEventArgs args)
    {
        var globalPos = AlertLevelsDropdown.GlobalPosition;
        globalPos.Y += AlertLevelsDropdown.Size.Y + 1; // Place it below us, with a safety margin.
        _alertLevels.Measure(Window?.Size ?? Vector2Helpers.Infinity);
        var (minX, minY) = _alertLevels.DesiredSize;
        var box = UIBox2.FromDimensions(globalPos, new Vector2(Math.Max(minX, AlertLevelsDropdown.Width), minY));
        _alertLevelsPopup.Orphan();
        Root?.ModalRoot.AddChild(_alertLevelsPopup);
        _alertLevelsPopup.Open(box);
    }

    protected override void FrameUpdate(FrameEventArgs args)
    {
        base.FrameUpdate(args);

        if (_console is not { } console)
            return;

        AnnounceButton.Disabled = _timing.CurTime <= console.Comp.CanAnnounceAt;
        AlertLevelsDropdown.Disabled = console.Comp.CanSetAlertAt is null || _timing.CurTime <= console.Comp.CanSetAlertAt;
        if (AlertLevelsDropdown.Disabled)
            _alertLevelsPopup.Close();

        if (console.Comp.ExpectedEvacuationArrival is { } evacArrival)
        {
            var diff = MathHelper.Max(evacArrival - _timing.CurTime, TimeSpan.Zero);
            var infoText = Loc.GetString($"comms-console-menu-shuttle-eta",
                ("time", diff.ToString(@"hh\:mm\:ss", CultureInfo.CurrentCulture)));
            EmergencyStatus.Text = infoText;
        }
        else
        {
            EmergencyStatus.Text = Loc.GetString("comms-console-menu-shuttle-not-coming");
        }

        if (console.Comp.ExpectedExfiltrationArrival is { } exfiltrationArrival)
        {
            var diff = MathHelper.Max(exfiltrationArrival - _timing.CurTime, TimeSpan.Zero);
            var infoText = Loc.GetString($"comms-console-menu-shuttle-eta",
                ("time", diff.ToString(@"hh\:mm\:ss", CultureInfo.CurrentCulture)));
            ExfiltrationStatus.Text = infoText;
        }
        else
        {
            ExfiltrationStatus.Text = Loc.GetString("comms-console-menu-shuttle-not-coming");
        }

        UpdateKeycardAuthenticationDevice();
    }

    private void SetScreen(Control screen)
    {
        foreach (var other in _screens)
        {
            other.Visible = false;
        }

        screen.Visible = true;
        HomeButton.Visible = screen != HomeScreen;
    }

    public void Update(Entity<DVCommunicationsConsoleComponent> console, EntityUid user)
    {
        _console = console;
        _user = user;
        if (_station.GetOwningStation(console) is { } station &&
            _entity.TryGetComponent<DVStationKeycardAuthenticationDeviceComponent>(station,
                out var keycardAuthenticationDevice))
        {
            _stationKeycardAuthenticationDevice = (station, keycardAuthenticationDevice);
        }

        // If they only have the ability to announce, there's no point in having a home button
        if (console.Comp.CanAnnounce && !(console.Comp.CanAlertLevel || console.Comp.CanCallShuttles || console.Comp.CanConfigureScreens || console.Comp.CanKeycardAuthenticationDevice))
        {
            SetScreen(AnnouncementScreen);
            HomeButton.Visible = false;
        }

        // Station
        StationHeaderLabel.Visible = console.Comp.CanAnnounce || console.Comp.CanConfigureScreens || console.Comp.CanAlertLevel;
        AnnouncementTab.Visible = console.Comp.CanAnnounce;
        ScreenTab.Visible = console.Comp.CanConfigureScreens;
        AlertLevelTab.Visible = console.Comp.CanAlertLevel;

        // Shuttles
        TransitHeaderLabel.Visible = console.Comp.CanCallShuttles; // Should be only hidden if all buttons under are also hidden.
        ShuttlesTab.Visible = console.Comp.CanCallShuttles;

        // Emergency
        EmergencyHeaderLabel.Visible = console.Comp.CanKeycardAuthenticationDevice; // Should be only hidden if all buttons under are also hidden.
        KeycardAuthenticationDeviceTab.Visible = console.Comp.CanKeycardAuthenticationDevice;

        ShuttleEmergencyButton.Disabled = !console.Comp.ShuttlesCallable;
        ShuttleExfiltrationButton.Disabled = !console.Comp.ShuttlesCallable;

        ShuttleEmergencyButton.Text =
            Loc.GetString($"comms-console-menu-call-emergency.{console.Comp.ExpectedEvacuationArrival is null}");
        ShuttleExfiltrationButton.Text =
            Loc.GetString($"comms-console-menu-call-exfiltration.{console.Comp.ExpectedExfiltrationArrival is null}");

        _alertLevels.RemoveAllChildren();
        foreach (var level in console.Comp.AlertLevels)
        {
            if (level.Id == console.Comp.CurrentAlertLevel)
            {
                AlertLevel.Text = Loc.GetString("comms-console-menu-current-alert-level",
                    ("name", Loc.GetString(level.AlertLevel)),
                    ("color", level.Color),
                    ("description", Loc.GetString(level.Description)));
            }

            if (!level.CanSet)
                continue;

            var btn = new Button
            {
                Text = Loc.GetString(level.AlertLevel),
                ToggleMode = true,
                Group = _group,
                Pressed = level.Id == console.Comp.CurrentAlertLevel,
            };
            _alertLevels.AddChild(btn);
            btn.OnPressed += _ =>
            {
                _alertLevelsPopup.Close();
                OnMessage?.Invoke(new DVCommunicationsConsoleAlertLevelMessage(level.Id));
            };
        }

        if (console.Comp.LastConfiguredLine1 != _lastConfiguredLine1)
            ScreenLine1.Text = console.Comp.LastConfiguredLine1;

        if (console.Comp.LastConfiguredLine2 != _lastConfiguredLine2)
            ScreenLine2.Text = console.Comp.LastConfiguredLine2;

        ScreenContentsButton.SelectId((int)console.Comp.LastConfiguredContent);
        ScreenAlertBorder.Pressed = console.Comp.LastConfiguredShowBorders;

        _lastConfiguredLine1 = console.Comp.LastConfiguredLine1;
        _lastConfiguredLine2 = console.Comp.LastConfiguredLine2;

        UpdateKeycardAuthenticationDevice();
    }

    private void UpdateKeycardAuthenticationDevice()
    {
        if (_user is not { } user || _stationKeycardAuthenticationDevice is not { } station)
            return;

        var canCall = !_entity.HasComponent<DVStationKeycardAuthenticationDeviceAlreadySwipedComponent>(user)
                      && _entity.HasComponent<HumanoidProfileComponent>(user) // Can't be AI or a borg
                      && station.Comp.AccessibleAfter <= _timing.CurTime;

        CallZeta.ForceDisabled = !(canCall && station.Comp.SwipingFor is null or DVStationKeycardAction.Mayday);
        CallZeta.Disabled = CallZeta.ForceDisabled;
        RequestCodes.ForceDisabled = !(canCall && station.Comp.SwipingFor is null or DVStationKeycardAction.Scuttling);
        RequestCodes.Disabled = RequestCodes.ForceDisabled;

        if (CallZeta.IsConfirming || RequestCodes.IsConfirming)
            return;

        // Kinda messy but it works
        if (station.Comp.SwipesStartedAt is { } firstSwipeTime)
        {
            var countdown = firstSwipeTime + station.Comp.SwipeWindow;
            var timeRemaining = countdown.Subtract(_timing.CurTime);
            if (timeRemaining > TimeSpan.Zero && station.Comp.SwipingFor is DVStationKeycardAction.Mayday)
                CallZeta.Text = $"{timeRemaining:ss\\.fff}";

            if (timeRemaining > TimeSpan.Zero && station.Comp.SwipingFor is DVStationKeycardAction.Scuttling)
                RequestCodes.Text = $"{timeRemaining:ss\\.fff}";
        }
        else
        {
            CallZeta.Text = Loc.GetString("comms-console-menu-declare-mayday.button");
            RequestCodes.Text = Loc.GetString("comms-console-menu-request-codes.button");
        }
    }

    private void OnAnnouncePressed(BaseButton.ButtonEventArgs args)
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleAnnouncementMessage(Rope.Collapse(AnnounceInput.TextRope)));
    }

    private void UpdateScreens()
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleScreenConfigurationMessage(
            (DVScreenContent) ScreenContentsButton.SelectedId,
            ScreenAlertBorder.Pressed,
            ScreenLine1.Text,
            ScreenLine2.Text));
    }

    private void OnUpdateScreenText(BaseButton.ButtonEventArgs buttonEventArgs)
    {
        UpdateScreens();
    }

    private void OnScreenContentsSelected(OptionButton.ItemSelectedEventArgs itemSelectedEventArgs)
    {
        ScreenContentsButton.SelectId(itemSelectedEventArgs.Id);
        UpdateScreens();
    }

    private void OnScreenAlertBorderToggled(BaseButton.ButtonToggledEventArgs buttonToggledEventArgs)
    {
        UpdateScreens();
    }

    private void OnExfiltrationPressed(BaseButton.ButtonEventArgs args)
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleExfiltrationShuttleMessage(_console?.Comp.ExpectedExfiltrationArrival is null));
    }

    private void OnEmergencyPressed(BaseButton.ButtonEventArgs args)
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleEvacuationShuttleMessage(_console?.Comp.ExpectedEvacuationArrival is null));
    }

    private void OnCallZetaPressed(BaseButton.ButtonEventArgs obj)
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleKeycardAuthenticationDeviceMessage(DVStationKeycardAction.Mayday));
    }

    private void OnRequestCodesPressed(BaseButton.ButtonEventArgs obj)
    {
        OnMessage?.Invoke(new DVCommunicationsConsoleKeycardAuthenticationDeviceMessage(DVStationKeycardAction.Scuttling));
    }
}